Coherent (COHR) 10-Q10 May 232023 Q3 Quarterly reportFinancial data

Company Profile

Cover

Cover - shares	9 Months Ended
Cover - shares	Mar. 31, 2023	May 08, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-39375
Entity Registrant Name	COHERENT CORP.
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	25-1214948
Entity Address, Address Line One	375 Saxonburg Boulevard
Entity Address, Postal Zip Code	16056
Entity Address, City or Town	Saxonburg,
Entity Address, State or Province	PA
City Area Code	724
Local Phone Number	352-4455
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		139,377,779
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000820318
Current Fiscal Year End Date	--06-30
Common Stock
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	COHR
Security Exchange Name	NYSE
Series A Mandatory Convertible Preferred Stock
Entity Information [Line Items]
Title of 12(b) Security	Series A Mandatory Convertible Preferred Stock, no par value
Trading Symbol	IIVI
Security Exchange Name	NYSE

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Current Assets
Cash, cash equivalents, and restricted cash	$ 901,028	$ 2,582,371
Accounts receivable - less allowance for doubtful accounts of $8,344 at March 31, 2023 and $4,206 at June 30, 2022	924,369	700,331
Inventories	1,394,103	902,559
Prepaid and refundable income taxes	26,237	19,585
Prepaid and other current assets	160,907	100,346
Total Current Assets	3,406,644	4,305,192
Property, plant & equipment, net	1,910,561	1,363,195
Goodwill	4,505,137	1,285,759
Other intangible assets, net	3,954,198	635,404
Deferred income taxes	34,169	31,714
Other assets	306,923	223,582
Total Assets	14,117,632	7,844,846
Current Liabilities
Current portion of long-term debt	74,910	403,212
Accounts payable	428,860	434,917
Accrued compensation and benefits	177,811	172,109
Operating lease current liabilities	40,309	27,574
Accrued income taxes payable	74,156	29,317
Other accrued liabilities	311,410	199,830
Total Current Liabilities	1,107,456	1,266,959
Long-term debt	4,349,923	1,897,214
Deferred income taxes	847,212	77,259
Operating lease liabilities	148,010	110,214
Other liabilities	213,953	109,922
Total Liabilities	6,666,554	3,461,568
Mezzanine Equity
Series B redeemable convertible preferred stock, no par value, 5% cumulative; issued - 215,000 and 75,000 shares at March 31, 2023 and June 30, 2022, respectively; redemption value - $2,281,448 and $798,181, respectively	2,211,642	766,803
Shareholders' Equity
Series A preferred stock, no par value, 6% cumulative; issued - 2,300,000 shares at March 31, 2023 and June 30, 2022	445,319	445,319
Common stock, no par value; authorized - 300,000,000 shares; issued - 154,369,985 shares at March 31, 2023; 120,923,171 shares at June 30, 2022	3,755,410	2,064,552
Accumulated other comprehensive income (loss)	170,454	(2,167)
Retained earnings	1,159,322	1,348,125
Shareholders' equity excluding treasury stock	$ 5,530,505	$ 3,855,829
Treasury stock (in shares)	15,098,467	13,972,758
Treasury stock, at cost; 15,098,467 shares at March 31, 2023 and 13,972,758 shares at June 30, 2022	$ (291,069)	$ (239,354)
Total Shareholders' Equity	5,239,436	3,616,475
Total Liabilities, Mezzanine Equity and Shareholders' Equity	$ 14,117,632	$ 7,844,846

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Mar. 31, 2023	Jun. 30, 2022
Accounts receivable, allowance for doubtful accounts		$ 8,344	$ 4,206
Common stock, no par value (in usd per share)		$ 0	$ 0
Common stock, shares authorized (in shares)		300,000,000	300,000,000
Common stock, shares issued (in shares)		154,369,985	120,923,171
Treasury stock (in shares)		15,098,467	13,972,758
Series B Convertible Preferred Stock
Redeemable convertible preferred stock, par value (in usd per share)		$ 0	$ 0
Redeemable convertible preferred stock, cumulative percentage	5%	5%
Redeemable convertible preferred stock, shares issued (in shares)		215,000	75,000
Redeemable convertible preferred stock redemption value		$ 2,281,448	$ 798,181
Series A Preferred Stock
Preferred stock, par value (in usd per share)		$ 0	$ 0
Preferred stock, dividend rate, percentage	6%	6%
Preferred stock, shares issued (in shares)		2,300,000	2,300,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Earnings (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues	$ 1,240,194	$ 827,724	$ 3,955,049	$ 2,429,654
Costs, Expenses, and Other Expense (Income)
Cost of goods sold	820,038	506,051	2,680,131	1,490,190
Internal research and development	126,382	96,895	376,257	281,189
Selling, general and administrative	226,386	118,009	780,551	358,234
Interest expense	75,183	43,499	207,976	72,752
Other expense (income), net	(3,048)	241	32,253	(5,535)
Total Costs, Expenses, & Other Expense	1,244,941	764,695	4,077,168	2,196,830
Earnings (Loss) Before Income Taxes	(4,747)	63,029	(122,119)	232,824
Income Tax Expense (Benefit)	(7,293)	14,027	(40,895)	41,701
Net Earnings (Loss)	2,546	49,002	(81,224)	191,123
Less: Dividends on Preferred Stock	36,071	17,148	107,537	50,933
Net Earnings (Loss) available to the Common Shareholders	$ (33,525)	$ 31,854	$ (188,761)	$ 140,190
Basic Earning (Loss) Per Share (in usd per share)	$ (0.24)	$ 0.30	$ (1.38)	$ 1.32
Diluted Earnings (Loss) Per Share (in usd per share)	$ (0.24)	$ 0.28	$ (1.38)	$ 1.22

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Net earnings (loss)	$ 2,546	$ 49,002	$ (81,224)	$ 191,123
Other comprehensive income (loss):
Foreign currency translation adjustments	58,141	327	157,805	(11,461)
Pension adjustment, net of taxes	709	0	1,151	0
Comprehensive income	46,870	82,049	91,397	224,973
Interest Rate Swap
Other comprehensive income (loss):
Change in fair value of interest rate swap and interest rate cap, net of taxes	(6,251)	23,804	6,019	36,395
Interest Rate Cap
Other comprehensive income (loss):
Change in fair value of interest rate swap and interest rate cap, net of taxes	$ (8,275)	$ 8,916	$ 7,646	$ 8,916

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2023	Mar. 31, 2022
Pension adjustment tax	$ 0	$ 0	$ 0	$ 0			$ 0	$ 0
Interest Rate Swap
Change in fair value of interest rate swap and interest rate cap, taxes	(1,712)	(92)	3,452	6,519	$ 2,714	$ 734	1,649	9,967
Interest Rate Cap
Change in fair value of interest rate swap and interest rate cap, taxes	$ (2,200)	$ (1,208)	$ 5,440	$ 2,370			$ 2,032	$ 2,370

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows from Operating Activities
Net earnings (loss)	$ (81,224)	$ 191,123
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	197,469	153,714
Amortization	280,667	59,820
Share-based compensation expense	123,674	57,424
Amortization of discount on convertible debt and debt issuance costs	13,690	12,159
Unrealized losses (gains) on foreign currency remeasurements and transactions	(945)	(912)
Gain from equity investments	(435)	(1,641)
Deferred income taxes	(121,277)	(8,917)
Loss on debt extinguishment	6,835	0
Increase (decrease) in cash from changes in (net of effect of acquisitions):
Accounts receivable	50,887	3,764
Inventories	75,096	(184,073)
Accounts payable	(78,985)	27,056
Contract liabilities	13,177	24,473
Income taxes	18,478	19,957
Accrued compensation and benefits	(54,893)	(40,030)
Other operating net assets (liabilities)	10,279	(37,910)
Net cash provided by operating activities	452,493	276,007
Cash Flows from Investing Activities
Additions to property, plant & equipment	(342,999)	(195,991)
Purchases of businesses, net of cash acquired	(5,488,556)	0
Other investing activities	(2,261)	(5,750)
Net cash used in investing activities	(5,833,816)	(201,741)
Cash Flows from Financing Activities
Proceeds from borrowings of Revolving Credit Facility	65,000	0
Proceeds from issuance of Series B Preferred Shares	1,400,000	0
Proceeds from issuance of Senior Notes	0	990,000
Payments on Finisar Notes	0	(14,888)
Payments on borrowings under Revolving Credit Facility	(65,000)	0
Payments on convertible notes	(3,561)	0
Debt issuance costs	(126,516)	(10,197)
Equity issuance costs	(42,000)	0
Proceeds from exercises of stock options and purchases of stock under employee stock purchase plan	21,509	17,177
Payments in satisfaction of employees' minimum tax obligations	(51,836)	(14,948)
Payment of dividends	(20,700)	(27,608)
Other financing activities	(866)	(1,715)
Net cash provided by financing activities	3,682,005	891,283
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	22,532	42,874
Net increase (decrease) in cash, cash equivalents, and restricted cash	(1,676,786)	1,008,423
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period	2,582,371	1,591,892
Cash, Cash Equivalents, and Restricted Cash at End of Period	905,585	2,600,315
Cash paid for interest	190,672	24,158
Cash paid for income taxes	63,485	34,757
Additions to property, plant & equipment included in accounts payable	45,425	71,477
Reconciliation of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Restricted cash	21,000
Cash, cash equivalents, and restricted cash	901,028	2,600,315
Restricted cash, non-current	4,557	0
Total cash, cash equivalents, and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	905,585	2,600,315
Term A Loan
Cash Flows from Financing Activities
Proceeds from borrowing of Term Facility	850,000	0
Payments on existing debt	(1,144,025)	(46,538)
Term B Loan
Cash Flows from Financing Activities
Proceeds from borrowing of Term Facility	$ 2,800,000	$ 0

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Shareholders' Equity and Mezzanine Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Interest Rate Swap	Interest Rate Cap	Preferred Shares	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Interest Rate Swap	Accumulated Other Comprehensive Income (Loss) Interest Rate Cap	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock
Beginning balance, Common Stock (in shares) at Jun. 30, 2021						119,127,000
Beginning balance, Preferred Stock (in shares) at Jun. 30, 2021								2,300,000
Beginning balance, Treasury Stock, (in shares) at Jun. 30, 2021														(13,640,000)
Beginning balance at Jun. 30, 2021	$ 3,406,170	$ (11,472)				$ 2,028,273	$ (56,388)	$ 445,319	$ 14,267			$ 1,136,777	$ 44,916	$ (218,466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)						844,000								200,000
Share-based and deferred compensation activities	(17,632)					$ (30,567)								$ 12,935
Net Earnings (Loss)	74,464											74,464
Foreign currency translation adjustments	(14,381)								(14,381)
Change in fair value of interest rate swap and interest rate cap, net of taxes			$ 2,681							$ 2,681
Dividends	(17,082)											(17,082)
Ending balance, Common Stock (in shares) at Sep. 30, 2021						119,971,000
Ending balance, Preferred Stock (in shares) at Sep. 30, 2021								2,300,000
Ending balance, Treasury Stock (in shares) at Sep. 30, 2021														(13,840,000)
Ending balance at Sep. 30, 2021	$ 3,458,012					$ 2,002,452		$ 445,319	2,567			1,239,075		$ (231,401)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2020-06 [Member]
Beginning balance (in shares) at Jun. 30, 2021					75,000
Beginning balance at Jun. 30, 2021					$ 726,178
Mezzanine Equity
Dividends					$ 10,182
Ending balance (in shares) at Sep. 30, 2021					75,000
Ending balance at Sep. 30, 2021					$ 736,360
Mezzanine Equity
Change in fair value of interest rate swap and interest rate cap, taxes			734
Beginning balance, Common Stock (in shares) at Jun. 30, 2021						119,127,000
Beginning balance, Preferred Stock (in shares) at Jun. 30, 2021								2,300,000
Beginning balance, Treasury Stock, (in shares) at Jun. 30, 2021														(13,640,000)
Beginning balance at Jun. 30, 2021	$ 3,406,170	$ (11,472)				$ 2,028,273	$ (56,388)	$ 445,319	14,267			1,136,777	$ 44,916	$ (218,466)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings (Loss)	191,123
Foreign currency translation adjustments	(11,461)
Change in fair value of interest rate swap and interest rate cap, net of taxes			36,395	$ 8,916
Pension adjustment, net of taxes	0
Ending balance, Common Stock (in shares) at Mar. 31, 2022						120,319,000
Ending balance, Preferred Stock (in shares) at Mar. 31, 2022								2,300,000
Ending balance, Treasury Stock (in shares) at Mar. 31, 2022														(13,869,000)
Ending balance at Mar. 31, 2022	3,627,765					$ 2,045,850		$ 445,319	48,117			1,321,779		$ (233,300)
Beginning balance (in shares) at Jun. 30, 2021					75,000
Beginning balance at Jun. 30, 2021					$ 726,178
Ending balance (in shares) at Mar. 31, 2022					75,000
Ending balance at Mar. 31, 2022					$ 756,411
Mezzanine Equity
Pension adjustment tax	0
Change in fair value of interest rate swap and interest rate cap, taxes			9,967	2,370
Beginning balance, Common Stock (in shares) at Sep. 30, 2021						119,971,000
Beginning balance, Preferred Stock (in shares) at Sep. 30, 2021								2,300,000
Beginning balance, Treasury Stock, (in shares) at Sep. 30, 2021														(13,840,000)
Beginning balance at Sep. 30, 2021	3,458,012					$ 2,002,452		$ 445,319	2,567			1,239,075		$ (231,401)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)						82,000								13,000
Share-based and deferred compensation activities	(16,048)					$ (16,854)								$ 806
Net Earnings (Loss)	67,657											67,657
Foreign currency translation adjustments	2,593								2,593
Change in fair value of interest rate swap and interest rate cap, net of taxes			9,910							9,910
Dividends	(16,807)											(16,807)
Ending balance, Common Stock (in shares) at Dec. 31, 2021						120,053,000
Ending balance, Preferred Stock (in shares) at Dec. 31, 2021								2,300,000
Ending balance, Treasury Stock (in shares) at Dec. 31, 2021														(13,853,000)
Ending balance at Dec. 31, 2021	3,537,413					$ 2,019,306		$ 445,319	15,070			1,289,925		$ (232,207)
Beginning balance (in shares) at Sep. 30, 2021					75,000
Beginning balance at Sep. 30, 2021					$ 736,360
Mezzanine Equity
Dividends					$ 9,803
Ending balance (in shares) at Dec. 31, 2021					75,000
Ending balance at Dec. 31, 2021					$ 746,163
Mezzanine Equity
Change in fair value of interest rate swap and interest rate cap, taxes			2,714
Share-based and deferred compensation activities (in shares)						266,000								16,000
Share-based and deferred compensation activities	(25,451)					$ (26,544)								$ 1,093
Net Earnings (Loss)	49,002
Foreign currency translation adjustments	327								327
Change in fair value of interest rate swap and interest rate cap, net of taxes			23,804	8,916						23,804	$ 8,916
Pension adjustment, net of taxes	0
Dividends	(17,148)											(17,148)
Ending balance, Common Stock (in shares) at Mar. 31, 2022						120,319,000
Ending balance, Preferred Stock (in shares) at Mar. 31, 2022								2,300,000
Ending balance, Treasury Stock (in shares) at Mar. 31, 2022														(13,869,000)
Ending balance at Mar. 31, 2022	3,627,765					$ 2,045,850		$ 445,319	48,117			1,321,779		$ (233,300)
Mezzanine Equity
Shares issued (in shares)					0
Issuance of Series B shares					$ 0
Dividends					$ 10,248
Ending balance (in shares) at Mar. 31, 2022					75,000
Ending balance at Mar. 31, 2022					$ 756,411
Mezzanine Equity
Pension adjustment tax	$ 0
Change in fair value of interest rate swap and interest rate cap, taxes			6,519	2,370
Beginning balance, Common Stock (in shares) at Jun. 30, 2022						120,923,000
Beginning balance, Preferred Stock (in shares) at Jun. 30, 2022								2,300,000
Beginning balance, Treasury Stock, (in shares) at Jun. 30, 2022	(13,972,758)													(13,973,000)
Beginning balance at Jun. 30, 2022	$ 3,616,475					$ 2,064,552		$ 445,319	(2,167)			1,348,125		$ (239,354)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)						2,398,000								830,000
Share-based and deferred compensation activities	(20,571)					$ (61,431)								$ 40,860
Coherent Acquisition (in shares)						22,588,000
Coherent Acquisition	1,207,591					$ 1,207,591
Convertible debt conversions (in shares)						7,181,000
Convertible debt conversions	337,940					$ 337,940
Net Earnings (Loss)	(38,698)											(38,698)
Foreign currency translation adjustments	(132,371)								(132,371)
Change in fair value of interest rate swap and interest rate cap, net of taxes			12,604	20,464						12,604	20,464
Pension adjustment, net of taxes	39								39
Dividends	(35,577)											(35,577)
Ending balance, Common Stock (in shares) at Sep. 30, 2022						153,090,000
Ending balance, Preferred Stock (in shares) at Sep. 30, 2022								2,300,000
Ending balance, Treasury Stock (in shares) at Sep. 30, 2022														(14,803,000)
Ending balance at Sep. 30, 2022	5,009,038					$ 3,671,514		$ 445,319	(101,431)			1,273,850		$ (280,214)
Beginning balance (in shares) at Jun. 30, 2022					75,000
Beginning balance at Jun. 30, 2022	766,803				$ 766,803
Mezzanine Equity
Issuance of Series B shares (in shares)					140,000
Issuance of Series B shares					$ 1,358,000
Dividends					$ 28,677
Ending balance (in shares) at Sep. 30, 2022					215,000
Ending balance at Sep. 30, 2022					$ 2,153,480
Mezzanine Equity
Pension adjustment tax	$ 0
Change in fair value of interest rate swap and interest rate cap, taxes			3,452	5,440
Beginning balance, Common Stock (in shares) at Jun. 30, 2022						120,923,000
Beginning balance, Preferred Stock (in shares) at Jun. 30, 2022								2,300,000
Beginning balance, Treasury Stock, (in shares) at Jun. 30, 2022	(13,972,758)													(13,973,000)
Beginning balance at Jun. 30, 2022	$ 3,616,475					$ 2,064,552		$ 445,319	(2,167)			1,348,125		$ (239,354)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Earnings (Loss)	(81,224)
Foreign currency translation adjustments	157,805
Change in fair value of interest rate swap and interest rate cap, net of taxes			6,019	7,646
Pension adjustment, net of taxes	$ 1,151
Ending balance, Common Stock (in shares) at Mar. 31, 2023						154,370,000
Ending balance, Preferred Stock (in shares) at Mar. 31, 2023								2,300,000
Ending balance, Treasury Stock (in shares) at Mar. 31, 2023	(15,098,467)													(15,098,000)
Ending balance at Mar. 31, 2023	$ 5,239,436					$ 3,755,410		$ 445,319	170,454			1,159,322		$ (291,069)
Beginning balance (in shares) at Jun. 30, 2022					75,000
Beginning balance at Jun. 30, 2022	766,803				$ 766,803
Ending balance (in shares) at Mar. 31, 2023					215,000
Ending balance at Mar. 31, 2023	2,211,642				$ 2,211,642
Mezzanine Equity
Pension adjustment tax	0
Change in fair value of interest rate swap and interest rate cap, taxes			1,649	2,032
Beginning balance, Common Stock (in shares) at Sep. 30, 2022						153,090,000
Beginning balance, Preferred Stock (in shares) at Sep. 30, 2022								2,300,000
Beginning balance, Treasury Stock, (in shares) at Sep. 30, 2022														(14,803,000)
Beginning balance at Sep. 30, 2022	5,009,038					$ 3,671,514		$ 445,319	(101,431)			1,273,850		$ (280,214)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based and deferred compensation activities (in shares)						779,000								266,000
Share-based and deferred compensation activities	(23,194)					$ (32,745)								$ 9,551
Net Earnings (Loss)	(45,072)											(45,072)
Foreign currency translation adjustments	232,035								232,035
Change in fair value of interest rate swap and interest rate cap, net of taxes			(334)	(4,543)						(334)	(4,543)
Pension adjustment, net of taxes	403								403
Dividends	(35,931)											(35,931)
Ending balance, Common Stock (in shares) at Dec. 31, 2022						153,869,000
Ending balance, Preferred Stock (in shares) at Dec. 31, 2022								2,300,000
Ending balance, Treasury Stock (in shares) at Dec. 31, 2022														(15,069,000)
Ending balance at Dec. 31, 2022	5,178,790					$ 3,704,259		$ 445,319	126,130			1,192,847		$ (289,765)
Beginning balance (in shares) at Sep. 30, 2022					215,000
Beginning balance at Sep. 30, 2022					$ 2,153,480
Mezzanine Equity
Dividends					$ 28,992
Ending balance (in shares) at Dec. 31, 2022					215,000
Ending balance at Dec. 31, 2022					$ 2,182,471
Mezzanine Equity
Pension adjustment tax	0
Change in fair value of interest rate swap and interest rate cap, taxes			(92)	(1,208)
Share-based and deferred compensation activities (in shares)						501,000								29,000
Share-based and deferred compensation activities	(49,847)					$ (51,151)								$ 1,304
Net Earnings (Loss)	2,546											2,546
Foreign currency translation adjustments	58,141								58,141
Change in fair value of interest rate swap and interest rate cap, net of taxes			(6,251)	(8,275)						$ (6,251)	$ (8,275)
Pension adjustment, net of taxes	709								709
Dividends	$ (36,071)											(36,071)
Ending balance, Common Stock (in shares) at Mar. 31, 2023						154,370,000
Ending balance, Preferred Stock (in shares) at Mar. 31, 2023								2,300,000
Ending balance, Treasury Stock (in shares) at Mar. 31, 2023	(15,098,467)													(15,098,000)
Ending balance at Mar. 31, 2023	$ 5,239,436					$ 3,755,410		$ 445,319	$ 170,454			$ 1,159,322		$ (291,069)
Mezzanine Equity
Dividends					$ 29,171
Ending balance (in shares) at Mar. 31, 2023					215,000
Ending balance at Mar. 31, 2023	2,211,642				$ 2,211,642
Mezzanine Equity
Pension adjustment tax	$ 0
Change in fair value of interest rate swap and interest rate cap, taxes			$ (1,712)	$ (2,200)

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Shareholders' Equity and Mezzanine Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2023	Mar. 31, 2022
Pension adjustment tax	$ 0	$ 0	$ 0	$ 0			$ 0	$ 0
Interest Rate Swap
Change in fair value of interest rate swap and interest rate cap, taxes	(1,712)	(92)	3,452	6,519	$ 2,714	$ 734	1,649	9,967
Interest Rate Cap
Change in fair value of interest rate swap and interest rate cap, taxes	$ (2,200)	$ (1,208)	$ 5,440	$ 2,370			$ 2,032	$ 2,370

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements of Coherent Corp. (“Coherent”, the “Company”, “we”, “us” or “our”) for the three and nine months ended March 31, 2023 and 2022 are unaudited. In the opinion of management, all adjustments considered necessary for a fair presentation for the periods presented have been included. All adjustments are of a normal recurring nature unless disclosed otherwise. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted. These condensed consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K dated August 29, 2022. The condensed consolidated results of operations for the three and nine months ended March 31, 2023 are not necessarily indicative of the results to be expected for the full fiscal year. The Condensed Consolidated Balance Sheet information as of June 30, 2022 was derived from the Company’s audited consolidated financial statements. Transfer to New York Stock Exchange

Recently Issued Financial Accou

Recently Issued Financial Accounting Standards	9 Months Ended
Recently Issued Financial Accounting Standards	Mar. 31, 2023
Accounting Policies [Abstract]
Recently Issued Financial Accounting Standards	Recently Issued Financial Accounting Standards Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting In March 2020, the Financial Accounting Standards Board (the “FASB”) issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This topic provides optional expedients to ease the potential burden of accounting for the effects of reference rate reform as it pertains to contract modifications of debt and lease contracts and derivative contracts identified in a hedging relationship. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, to extend the temporary accounting rules under Topic 848 from December 31, 2022 to December 31, 2024. The Company adopted Topic 848 in the three months ended March 31, 2023 and applied the practical expedients under Topic 848 to account for modifications and updates to its floating rate debt, its interest rate swap and its interest rate cap. Application of these practical expedients allowed the Company to maintain hedge accounting for its interest rate cap and swap contracts. The adoption did not have a material impact on the Company's consolidated financial statements. Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”), which requires an acquirer to recognize and measure contract assets and liabilities acquired in a business combination in accordance with Accounting Standards Codification ASC 606: Revenue from Contracts with Customers, rather than adjust them to fair value at the acquisition date. We have adopted this accounting standard as of July 1, 2022. The acquisition of Coherent, Inc. has been accounted for in accordance with ASU 2021-08, as will any future acquisitions. Results of operations for quarterly periods prior to adoption remain unchanged as a result of the adoption of ASU No. 2021-08. Refer to Note 3. Coherent Acquisition for further information.

Coherent Acquisition

Coherent Acquisition	9 Months Ended
Coherent Acquisition	Mar. 31, 2023
Business Combination and Asset Acquisition [Abstract]
Coherent Acquisition	Coherent AcquisitionOn July 1, 2022 (the “Closing Date”), the Company completed its acquisition of Coherent, Inc. (the “Merger”), a global provider of lasers and laser-based technology for scientific, commercial, and industrial customers, in a combined cash and stock transaction in accordance with the Agreement and Plan of Merger dated March 25, 2021 (the “Merger Agreement”). Pursuant to the terms of the Merger Agreement, and subject to the conditions set forth therein, each share of common stock of legacy Coherent, Inc. (“Legacy Coherent”), par value $0.01 per share (the “Legacy Coherent Common Stock”), issued and outstanding immediately prior to July 1, 2022, was canceled and extinguished and automatically converted into the right to receive $220.00 in cash and 0.91 of a share of Coherent Common Stock. Following the completion of the Legacy Coherent acquisition, the Company announced a new brand identity, including a corporate name change to Coherent Corp. (NYSE: COHR) on September 8, 2022. On the Closing Date, the Company entered into a Credit Agreement (the “Credit Agreement”) by and among the Company, the lenders, and other parties thereto, and JP Morgan Chase Bank, N.A., as administrative agent and collateral agent, which provides for senior secured financing of $4.0 billion, consisting of a new term loan A credit facility (the “Term A Facility”) in an aggregate principal amount of $850 million, a new term loan B credit facility (the “Term B Facility”) (and, together with the Term A Facility, the “Term Facilities”) in an aggregate principal amount of $2.8 billion, and a new revolving credit facility (the “Revolving Credit Facility”) in an aggregate available amount of $350 million, including a letter of credit sub-facility of up to $50 million. For further on the credit facility refer to Note 8. Debt. In order to complete the funding of the Merger, the Company had a net cash outflow of $2.1 billion on July 1, 2022. The Company recorded $11 million and $83 million of acquisition related costs in the three and nine months ended March 31, 2023, respectively, representing professional and other direct acquisition costs. These costs are recorded within Selling, general and administrative expense in our Condensed Consolidated Statement of Earnings (Loss). Approximately 23 million shares of Coherent Common Stock in the aggregate were issued in conjunction with the closing of the Merger. Total preliminary Merger consideration was $7.1 billion, including replacement equity awards attributable to pre-combination service for certain Legacy Coherent restricted stock units. The preliminary total fair value of consideration paid in connection with the acquisition of Coherent, Inc. consisted of the following (in $000): Shares Per Share Total Consideration Cash paid for merger consideration — — $ 5,460,808 Shares of COHR common stock issued to Legacy Coherent stockholders 22,587,885 $49.83 1,125,554 Converted Legacy Coherent RSUs attributable to pre-combination service — — 82,037 Payment of Legacy Coherent debt — — 364,544 Payment of Legacy Coherent transaction expenses — — 62,840 $ 7,095,783 The Company allocated the fair value of the preliminary purchase price consideration to the tangible assets, liabilities, and intangible assets acquired, generally based on estimated fair values. The excess preliminary purchase price over those fair values is recorded as goodwill. Our valuation assumptions of acquired assets and assumed liabilities require significant estimates, especially with respect to intangible assets, inventories, property, plant & equipment and deferred income taxes. In determining the fair value of intangible assets acquired, the Company must make assumptions about the future performance of the acquired business, including among other things, the forecasted revenue growth attributable to the asset group and projected operating expenses inclusive of expected synergies, future cost savings, and other benefits expected to be achieved by combining the Company and Legacy Coherent. The Company’s intangible assets are comprised of trade names and trademarks, customer relationships, developed technology and backlog. The Company utilized widely accepted income-based, market-based, and cost-based valuation approaches to perform the preliminary purchase price allocation. The estimated fair value of the customer relationships and backlog are determined using the multi-period excess earnings method and the estimated fair value of the trade names and trademarks and developed technology are determined using the relief from royalty method. Both methods require forward looking estimates that are discounted to determine the fair value of the intangible asset using a risk-adjusted discount rate that is reflective of the level of risk associated with future estimates associated with the asset group that could be affected by future economic and market conditions. The purchase price allocation set forth is preliminary and will be revised as third party valuations are finalized or additional information becomes available during the measurement period, which could be up to 12 months from the Closing Date. Any such revisions or changes may be material. Our preliminary allocation of the $7.1 billion purchase price of Legacy Coherent, based on the estimated fair value of the assets acquired and liabilities assumed as of the Closing Date, is as follows (in $000): Preliminary Allocation as of 7/1/2022 as adjusted through 3/31/23 Previously Reported September 30, 2022 Measurement Period Adjustments (i) As Adjusted (preliminary) Assets Current Assets Cash, cash equivalents, and restricted cash $ 393,324 $ — $ 393,324 Accounts receivable 270,928 — 270,928 Inventories (ii) 497,345 66,540 563,885 Prepaid and refundable income taxes (iii) 8,869 (1,592) 7,277 Prepaid and other current assets 41,467 — 41,467 Total Current Assets 1,211,933 64,948 1,276,881 Property, plant & equipment, net (iv) 424,228 16,704 440,932 Deferred income taxes (iii) 1,115 (793) 322 Other assets 102,726 — 102,726 Other intangible assets, net (v) 2,425,454 1,079,546 3,505,000 Goodwill 4,005,727 (862,497) 3,143,230 Total Assets $ 8,171,183 $ 297,908 $ 8,469,091 Liabilities Current Liabilities Current portion of long-term debt $ 4,504 $ — $ 4,504 Accounts payable 116,754 — 116,754 Accrued compensation and benefits 60,596 — 60,596 Operating lease current liabilities 13,002 — 13,002 Accrued income taxes payable 16,936 — 16,936 Other accrued liabilities (vi) 136,042 702 136,744 Total Current Liabilities 347,834 702 348,536 Long-term debt 22,991 — 22,991 Deferred income taxes (iii) 563,824 292,168 855,992 Operating lease liabilities 43,313 — 43,313 Other liabilities (vi) 97,438 5,038 102,476 Total Liabilities $ 1,075,400 $ 297,908 $ 1,373,308 Preliminary aggregate acquisition consideration $ 7,095,783 $ — $ 7,095,783 (i) The Company recorded measurement period adjustments to its preliminary acquisition date fair values due to the refinement of its valuation models, assumptions and inputs. The following measurement period adjustments were based upon information obtained about facts and circumstances that existed at the acquisition date that, if known, would have affected the measurement of the amounts recognized at that date. (ii) The Condensed Combined Balance Sheet has been adjusted to record Legacy Coherent’s inventories at a preliminary fair value of approximately $564 million, an increase of $67 million from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. The Condensed Combined Statement of Earnings (Loss) for the three and nine months ended March 31, 2023 includes cost of goods sold of approximately zero and $158 million, respectively, related to the increased basis in the preliminary fair value compared to the carrying value. The costs are being amortized over the expected period during which the acquired inventory is sold, and thus are not anticipated to affect the Condensed Consolidated Statements of Earnings (Loss) beyond twelve months after the Closing Date. (iii) The Company has adjusted its prepaid and refundable income taxes, deferred tax asset and deferred tax liability positions as of March 31, 2023, to $7 million, zero and $856 million, respectively, as a result of measurement period adjustments. (iv) The Condensed Consolidated Balance Sheet has been adjusted to record Legacy Coherent’s property, plant and equipment (consisting of land, buildings and improvements, equipment, furniture and fixtures, and leasehold improvements) at a preliminary fair value of approximately $441 million, an increase of $17 million from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. The Condensed Consolidated Statements of Earnings (Loss) have been adjusted to recognize additional depreciation expense related to the increased basis. The additional depreciation expense is computed with the assumption that the various categories of assets will be depreciated over their remaining useful lives on a straight-line basis. (v) Preliminary identifiable intangible assets in the Condensed Combined Balance Sheet increased $1.1 billion from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. Intangibles amortization recorded in cost of goods sold for the three and nine months ended March 31, 2023 was $21 million and $64 million, respectively. Intangibles amortization recorded in selling, general and administrative expenses for the three and nine months ended March 31, 2023 was $51 million and $156 million, respectively. Preliminary identifiable intangible assets consist of the following and are being amortized over their estimated useful lives in the Condensed Consolidated Statements of Earnings (Loss) (in $000): Preliminary Estimated Useful Life Trade names and trademarks $ 430,000 N/A Customer relationships 1,830,000 15 years Developed technology 1,157,500 13.5 years Backlog 87,500 1.0 year Intangible assets acquired $ 3,505,000 (vi) The Company recorded approximately $1 million of increases in other current liabilities and $5 million of increases in other liabilities as measurement period adjustments. Operating results, including goodwill and intangibles, of Legacy Coherent are reflected in the Company’s consolidated financial statements from the Closing Date, within the Lasers segment. Revenues and net loss for the Lasers segment for the three months ended March 31, 2023 were $365 million and $65 million, respectively. Revenues and net loss for the Lasers segment for the nine months ended March 31, 2023 were $1,137 million and $364 million, respectively. Goodwill in the amount of $3.1 billion arising from the acquisition is attributed to the expected synergies, including future cost savings, and other benefits expected to be generated by combining Coherent and Legacy Coherent. Substantially all of the goodwill recognized is not expected to be deductible for tax purposes. Supplemental Pro Forma Information The supplemental pro forma financial information presented below is for illustrative purposes only and is not necessarily indicative of the financial position or results of operations that would have been realized if the acquisition had been completed on the date indicated, does not reflect synergies that might have been achieved, nor is it indicative of future operating results or financial position. The pro forma adjustments are based upon currently available information and certain assumptions that we believe are reasonable under the circumstances. The supplemental pro forma information presents the combined results of operations for the three and nine months ended March 31, 2023 and March 31, 2022, as if Legacy Coherent had been acquired as of July 1, 2021. The supplemental pro forma information includes adjustments to amortization and depreciation for acquired intangible assets, property, plant and equipment, adjustments to share-based compensation expense, fair value adjustments on the inventories acquired, transaction costs, interest expense and amortization of debt issuance costs related to the Senior Credit Facilities (as defined in Note 8. Debt). The unaudited supplemental pro forma financial information for the periods presented is as follows (in $000): Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Revenue $ 1,240,194 $ 1,197,928 Net Earnings 36,294 6,482 Nine Months Ended March 31, 2023 Nine Months Ended March 31, 2022 Revenue $ 3,955,049 $ 3,576,039 Net Earnings (Loss) 247,715 (234,815)

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
Revenue from Contracts with Customers	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The Company believes that disaggregating revenue by end market provides the most relevant information regarding the nature, amount, timing, and uncertainty of revenues and cash flows. As of July 1, 2022, the Company disaggregates revenue into four end markets: industrial, communications, electronics and instrumentation. All prior period market and segment disclosure information has been reclassified to conform to the current reporting structure. Effective July 1, 2022, the Company updated the operating segments due to the closing of the Merger. In addition, prior year numbers were recast to reflect the transfer of two entities between the Networking and Materials segments. See Note 13. Segment Reporting for further information. The following tables summarize disaggregated revenue for the three and nine months ended March 31, 2023 and 2022 ($000): Three Months Ended March 31, 2023 Nine Months Ended March 31, 2023 Networking Materials Lasers Total Networking Materials Lasers Total Industrial $ 17,570 $ 156,846 $ 263,789 $ 438,205 $ 52,189 $ 450,383 $ 846,881 $ 1,349,453 Communications 521,291 17,014 — 538,305 1,664,205 59,553 — 1,723,758 Electronics 2,849 136,229 — 139,078 9,674 509,803 — 519,477 Instrumentation 9,389 13,680 101,537 124,606 30,259 42,070 290,032 362,361 Total Revenues $ 551,099 $ 323,769 $ 365,326 $ 1,240,194 $ 1,756,327 $ 1,061,809 $ 1,136,913 $ 3,955,049 Three Months Ended March 31, 2022 Nine Months Ended March 31, 2022 Networking Materials Total Networking Materials Total Industrial $ 21,325 $ 164,346 $ 185,671 $ 63,050 $ 486,094 $ 549,144 Communications 527,821 25,999 553,820 1,510,092 69,436 1,579,528 Electronics 2,752 60,240 62,992 9,080 220,683 229,763 Instrumentation 7,662 17,579 25,241 24,892 46,327 71,219 Total Revenues $ 559,560 $ 268,164 $ 827,724 $ 1,607,114 $ 822,540 $ 2,429,654 Contract Liabilities

Inventories

Inventories	9 Months Ended
Inventories	Mar. 31, 2023
Inventory Disclosure [Abstract]
Inventories	Inventories The components of inventories were as follows ($000): March 31, June 30, Raw materials $ 490,479 $ 318,758 Work in progress 621,295 408,405 Finished goods 282,329 175,396 $ 1,394,103 $ 902,559

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
Property, Plant and Equipment	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment consists of the following ($000): March 31, June 30, Land and improvements $ 74,908 $ 19,368 Buildings and improvements 686,293 415,530 Machinery and equipment 2,030,892 1,651,762 Construction in progress 311,051 271,605 Finance lease right-of-use asset 24,999 25,000 3,128,143 2,383,265 Less accumulated depreciation (1,217,582) (1,020,070) $ 1,910,561 $ 1,363,195 During the nine months ended March 31, 2023, as part of the Merger, a fair value step-up in the amount of $145 million was recorded to property, plant and equipment as part of the preliminary purchase price allocation. The step-up will be amortized over the useful lives of the related assets. Refer to Note 3. Coherent Acquisition for further information.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
Goodwill and Other Intangible Assets	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill were as follows ($000): Nine Months Ended March 31, 2023 Networking Materials Lasers Total Balance-beginning of period $ 1,048,743 $ 237,016 $ — $ 1,285,759 Transfer between segments (1) (35,466) 35,466 — — Goodwill acquired — — 3,143,230 3,143,230 Foreign currency translation (1,271) 859 76,560 76,148 Balance-end of period $ 1,012,006 $ 273,341 $ 3,219,790 $ 4,505,137 (1) Refer to Note 13. Segment Reporting for information regarding the segment transfer of goodwill between segments. The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of March 31, 2023 and June 30, 2022 were as follows ($000): March 31, 2023 June 30, 2022 Gross Accumulated Net Gross Accumulated Net Book Value Technology $ 1,669,863 $ (238,908) $ 1,430,955 $ 473,845 $ (144,409) $ 329,436 Trade Names 452,461 (8,073) 444,388 22,536 (7,454) 15,082 Customer Lists 2,352,969 (296,873) 2,056,096 464,880 (173,994) 290,886 Backlog and Other 90,072 (67,313) 22,759 1,563 (1,563) — Total $ 4,565,365 $ (611,167) $ 3,954,198 $ 962,824 $ (327,420) $ 635,404 Refer to Note 3. Coherent Acquisition for further information on intangibles acquired in the nine months ended March 31, 2023.

Debt

Debt	9 Months Ended
Debt	Mar. 31, 2023
Debt Disclosure [Abstract]
Debt	Debt The components of debt as of the dates indicated were as follows ($000): March 31, June 30, New Term A Facility, interest at adjusted SOFR, as defined, plus 1.750% $ 828,750 $ — Debt issuance costs, New Term A Facility and New Revolving Credit Facility (19,290) — New Term B Facility, interest at adjusted SOFR, as defined, plus 2.750% 2,676,000 — Debt issuance costs, New Term B Facility (68,773) — 1.30% Term loan due 2024 66 — 1.00% State of Connecticut term loan due 2023 2,040 — Facility construction loan in Germany due 2030 23,126 — Existing Term A Facility, interest at LIBOR, as defined, plus 1.375% — 995,363 Debt issuance costs, Existing Term A Facility and Existing Revolving Credit Facility — (18,396) 5.000% Senior Notes 990,000 990,000 Debt issuance costs and discount, Senior Notes (7,086) (7,703) 0.25% Convertible Senior Notes — 341,501 Debt issuance costs and discount, 0.25% Convertible Senior Notes — (339) Total debt 4,424,833 2,300,426 Current portion of long-term debt (74,910) (403,212) Long-term debt, less current portion $ 4,349,923 $ 1,897,214 Senior Credit Facilities On July 1, 2022 (the “Closing Date”), Coherent entered into a Credit Agreement by and among the Company, as borrower (in such capacity, the “Borrower”), the lenders, and other parties thereto, and JP Morgan Chase Bank, N.A., as administrative agent and collateral agent, which provides for senior secured financing of $4.0 billion, consisting of a term loan A credit facility (“the Term A Facility”), with an aggregate principal amount of $850 million, a term loan B credit facility (“the Term B Facility” and, together with the Term A Facility, the “Term Facilities”), with an aggregate principal amount of $2,800 million, and a revolving credit facility (the “Revolving Credit Facility”), in an aggregate available amount of $350 million, including a letter of credit sub-facility of up to $50 million. On March 31, 2023, Coherent entered into Amendment No. 1 to the Credit Agreement, which replaced the adjusted LIBOR-based rate of interest therein with an adjusted SOFR-based rate of interest. As amended, the Term A Facility and the Revolving Credit Facility each bear interest at an adjusted SOFR rate subject to a 0.10% floor plus a range of 1.75% to 2.50%, based on the Company’s total net leverage ratio. The Term A Facility and the Revolving Credit Facility borrowings bear interest at adjusted SOFR plus 1.75% as of March 31, 2023. As amended, the Term B Facility bears interest at an adjusted SOFR rate (subject to a 0.50% floor) plus 2.75%. In relation to the Term Facilities, the Company incurred interest expense, including amortization of debt issuance costs, of $69 million and $183 million in the three and nine months ended March 31, 2023, respectively, which is included in interest expense in the Condensed Consolidated Statements of Earnings (Loss). On the Closing Date, the Borrower and certain of its direct and indirect subsidiaries, provided a guaranty of all obligations of the Borrower and the other loan parties under the Credit Agreement and the other loan documents, secured cash management agreements and secured hedge agreements with the lenders and/or their affiliates (subject to certain exceptions). The Borrower and the other guarantors have also granted a security interest in substantially of their assets to secure such obligations. Proceeds of the loans borrowed under the Term Facilities on July 1, 2022, together with other financing sources (including the net proceeds from Coherent's offer and sale of its 5.000% Senior Notes due 2029 (the “Senior Notes”) and cash on hand) were used to fund the cash portion of the Merger consideration, the repayment of certain indebtedness (including the repayment in full of all amounts outstanding under the Prior Credit Agreement as defined below), and certain fees and expenses in connection with the Merger and otherwise for general corporate purposes. The Company capitalized approximately $90 million of debt issuance costs during the nine months ended March 31, 2023. These capitalized costs are presented as contra-debt within the long-term debt caption in the Condensed Consolidated Balance Sheet. Amortization of debt issuance costs related to the New Term Facilities for the three and nine months ended March 31, 2023 totaled $5 million and $14 million, respectively, and is included in interest expense in the Condensed Consolidated Statements of Earnings (Loss). As of March 31, 2023, the Company was in compliance with all covenants under the New Term Facilities. Prior Senior Credit Facilities Through June 30, 2022, the Company had senior credit facilities (the “Prior Senior Credit Facilities”) with Bank of America, N.A., as Administrative Agent, Swing Line Lender and an L/C Issuer, and the other lenders party thereto. The credit agreement governing the Senior Credit Facilities (the “Prior Credit Agreement”) provided for senior secured financing of $2.4 billion in the aggregate, consisting of (i) Aggregate principal amount of $1,255 million for a five-year senior secured first-lien term A loan facility (the “Prior Term A Facility”), (ii) Aggregate principal amount of $720 million for a seven-year senior secured term B loan facility (the “Prior Term B Facility” and together with the Prior Term A Facility, the “Prior Term Loan Facilities”), which was repaid in full during the quarter ended September 30, 2020, and (iii) Aggregate principal amount of $450 million for a five-year senior secured first-lien revolving credit facility (the “Prior Revolving Credit Facility” and together with the Prior Term Loan Facilities, the “Prior Senior Credit Facilities”). The Prior Credit Agreement also provided for a letter of credit sub-facility not to exceed $25 million and a swing loan sub-facility initially not to exceed $20 million. On July 1, 2022, the Company terminated the Prior Credit Agreement and repaid all amounts outstanding thereunder, of which $62 million was recorded as current portion of long-term debt and $933 million was recorded as long-term debt at June 30, 2022. Debt extinguishment costs related to the termination of the Prior Credit Agreement of $17 million were expensed in other expense (income), net in the Condensed Consolidated Statement of Earnings (Loss) during the nine months ended March 31, 2023. Bridge Loan Commitment Subject to the terms of an amended and restated commitment letter entered into in connection with Coherent entering into the Merger Agreement, the commitment parties thereto committed to provide, in addition to the Term Facilities and the Revolving Credit Facility, a senior unsecured bridge loan facility in an aggregate principal amount of $990 million (the "Bridge Loan Commitment"). As a result of the issuance and sale of the Senior Notes, the Bridge Loan Commitment was terminated. During the nine months ended March 31, 2023, the Company incurred expenses of $18 million, respectively, related to the termination of the Bridge Loan Commitment, which is included in other expense (income) in the Condensed Consolidated Statements of Earnings (Loss). There will be no additional expense related to the Bridge Loan Commitment going forward. Debt Assumed through Acquisition The Company assumed the remaining balances of three term loans with the closing of the Merger. The aggregate principal amount outstanding is $25 million as of March 31, 2023. The terms loans assumed consisted of the following: (i) 1.3% Term Loan due 2024, (ii) 1.0% State of Connecticut Term Loan due 2023, and (iii) Facility construction loan in Germany due 2030. For the Facility construction loan, on December 21, 2020, Coherent LaserSystems GmbH & Co. KG entered into a loan agreement with Commerzbank for borrowings of up to 24 million Euros, which were drawn down by October 29, 2021, to finance a portion of the construction of a new facility in Germany. The term of the loan is 10 years, and borrowings bear interest at 1.55% per annum. Payments are made quarterly. 5.000% Senior Notes due 2029 On December 10, 2021, the Company issued and sold $990 million aggregate principal amount of Senior Notes pursuant to the indenture, dated as of December 10, 2021 (the "Indenture"), between the Company and U.S. Bank National Association, as trustee. The Senior Notes are guaranteed by each of the Company’s domestic subsidiaries that guarantee its obligations under the Senior Credit Facilities. Interest on the Senior Notes is payable on December 15 and June 15 of each year, commencing on June 15, 2022, at a rate of 5.000% per annum. The Senior Notes will mature on December 15, 2029 . On or after December 15, 2024, the Company may redeem the Senior Notes, in whole at any time or in part from time to time, at the redemption prices set forth in the Indenture, plus accrued and unpaid interest, if any, to, but excluding, the applicable redemption date. In addition, at any time prior to December 15, 2024, the Company may redeem the Senior Notes, at its option, in whole at any time or in part from time to time, at a redemption price equal to 100% of the principal amount of the Senior Notes redeemed, plus a “make-whole” premium set forth in the Indenture, plus accrued and unpaid interest, if any, to, but excluding, the applicable redemption date. Notwithstanding the foregoing, at any time and from time to time prior to December 15, 2024, the Company may redeem up to 40% of the aggregate principal amount of the Senior Notes using the proceeds of certain equity offerings as set forth in the Indenture, at a redemption price equal to 105.000% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the applicable redemption date. In relation to the Senior Notes, the Company incurred interest expense of $13 million and $38 million in the three and nine months ended March 31, 2023, respectively, which is included in interest expense in the Condensed Consolidated Statements of Earnings (Loss). The Indenture contains customary covenants and events of default, including default relating to among other things, payment default, failure to comply with covenants or agreements contained in the Indenture or the Senior Notes and certain provisions related to bankruptcy events. As of March 31, 2023, the Company was in compliance with all covenants under the Indenture. 0.25% Convertible Senior Notes due 2022 In August 2017, the Company issued and sold $345 million aggregate principal amount of its 0.25% Convertible Senior Notes due 2022 (the “Convertible Notes”) in a private placement to qualified institutional buyers within the meaning of Rule 144A under the Securities Act of 1933, as amended. Beginning on June 1, 2022 until the close of business on the business day immediately preceding September 1, 2022 (the “Maturity Date”), holders were able to convert their Convertible Notes at any time. For the fiscal quarter ended September 30, 2022, the holders of the Convertible Notes converted $332 million of principal, which was recorded as current portion of long-term debt at June 30, 2022, and received approximately 7 million shares of Coherent Common Stock in settlement of the conversions. On the Maturity Date, $4 million aggregate principal amount of Convertible Notes remained outstanding, and was repaid in cash, and the Convertible Notes are no longer outstanding. At the Maturity Date, the accrued interest on the Coherent Convertible Notes was immaterial. The total interest expense related to the Convertible Notes was immaterial for both the three and nine months ended March 31, 2023 and March 31, 2022. Aggregate Availability The Company had aggregate availability of $348 million under its Revolving Credit Facility as of March 31, 2023.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s year-to-date effective income tax rate at March 31, 2023 was 33% compared to an effective tax rate of 18% for the same period in 2022. The variations between the Company’s effective tax rate and the U.S. statutory rate of 21% were due to nondeductible expenses and tax rate differentials between U.S. and foreign jurisdictions. U.S. GAAP prescribes the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements which includes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. As of March 31, 2023 and June 30, 2022, the Company’s gross unrecognized income tax benefit, excluding interest and penalties, was $66 million and $37 million, respectively. The Company has classified the uncertain tax positions as non-current income tax liabilities, as the amounts are not expected to be paid within one year. If recognized, $27 million of the gross unrecognized tax benefits at March 31, 2023 would impact the effective tax rate. The Company recognizes interest and penalties related to uncertain tax positions in the income tax provision in the Condensed Consolidated Statements of Earnings (Loss). The amount of accrued interest and penalties included in the gross unrecognized income tax benefit was $6 million and $3 million at March 31, 2023 and June 30, 2022, respectively. Fiscal years 2019 to 2022 remain open to examination by the Internal Revenue Service, fiscal years 2018 to 2022 remain open to examination by certain state jurisdictions, and fiscal years 2011 to 2022 remain open to examination by certain foreign taxing jurisdictions. The Company is currently under examination for certain subsidiary companies in California for the years ended September 30, 2018 through September 30, 2019; Colorado for the years ended September 30, 2018 through September 30, 2021; Vietnam for the years ended September 30, 2018 through September 30, 2021; Singapore for the year ended September 30, 2020; and Germany for the years ended September 30, 2011 through September 30, 2020. The Company believes its income tax reserves for these tax matters are adequate.

Leases

Leases	9 Months Ended
Leases	Mar. 31, 2023
Leases [Abstract]
Leases	Leases We determine if an arrangement is a lease at inception for arrangements with an initial term of more than 12 months, and classify it as either finance or operating. Finance leases are generally those that allow us to substantially utilize or pay for the entire asset over its estimated useful life. Finance lease assets are recorded in property, plant and equipment, net, and finance lease liabilities within other accrued liabilities and other liabilities on our Condensed Consolidated Balance Sheets. Finance lease assets are amortized in operating expenses on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term, with the interest component for lease liabilities included in interest expense and recognized using the effective interest method over the lease term. Operating leases are recorded in other assets and operating lease liabilities, current and non-current on the Company’s Condensed Consolidated Balance Sheets. Operating lease assets are amortized on a straight-line basis in operating expenses over the lease term. The Company’s lease liabilities are recognized based on the present value of the remaining fixed lease payments, over the lease term, using a discount rate of similarly secured borrowings available to the Company. For the purpose of lease liability measurement, the Company considers only payments that are fixed and determinable at the time of commencement. Any variable payments that depend on an index or rate are expensed as incurred. The Company accounts for non-lease components, such as common area maintenance, as a component of the lease, and includes it in the initial measurement of leased assets and corresponding liabilities. The Company’s lease terms and conditions may include options to extend or terminate. An option is recognized when it is reasonably certain that Coherent will exercise that option. The Company’s lease assets also include any lease payments made and exclude any lease incentives received prior to commencement. Our lease assets are tested for impairment in the same manner as long-lived assets used in operations. The following table presents lease costs, which include leases for arrangements with an initial term of more than 12 months, lease term, and discount rates ($000): Three Months Ended March 31, 2023 Nine Months Ended Finance lease cost Amortization of right-of-use assets $ 417 $ 1,250 Interest on lease liabilities 279 851 Total finance lease cost 696 2,101 Operating lease cost 13,324 39,817 Total lease cost $ 14,020 $ 41,918 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 279 $ 851 Operating cash flows from operating leases 12,578 37,843 Financing cash flows from finance leases 369 1,056 Weighted-Average Remaining Lease Term (in Years) Finance leases 8.8 Operating leases 6.7 Weighted-Average Discount Rate Finance leases 5.6 % Operating leases 5.5 % Three Months Ended Nine Months Ended Finance Lease Cost Amortization of right-of-use assets $ 417 $ 1,255 Interest on lease liabilities 298 907 Total finance lease cost $ 715 $ 2,162 Operating lease cost 9,240 27,635 Sublease income — 507 Total lease cost $ 9,955 $ 29,290 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 298 $ 907 Operating cash flows from operating leases 8,899 26,565 Financing cash flows from finance leases 332 954
Leases	Leases We determine if an arrangement is a lease at inception for arrangements with an initial term of more than 12 months, and classify it as either finance or operating. Finance leases are generally those that allow us to substantially utilize or pay for the entire asset over its estimated useful life. Finance lease assets are recorded in property, plant and equipment, net, and finance lease liabilities within other accrued liabilities and other liabilities on our Condensed Consolidated Balance Sheets. Finance lease assets are amortized in operating expenses on a straight-line basis over the shorter of the estimated useful lives of the assets or the lease term, with the interest component for lease liabilities included in interest expense and recognized using the effective interest method over the lease term. Operating leases are recorded in other assets and operating lease liabilities, current and non-current on the Company’s Condensed Consolidated Balance Sheets. Operating lease assets are amortized on a straight-line basis in operating expenses over the lease term. The Company’s lease liabilities are recognized based on the present value of the remaining fixed lease payments, over the lease term, using a discount rate of similarly secured borrowings available to the Company. For the purpose of lease liability measurement, the Company considers only payments that are fixed and determinable at the time of commencement. Any variable payments that depend on an index or rate are expensed as incurred. The Company accounts for non-lease components, such as common area maintenance, as a component of the lease, and includes it in the initial measurement of leased assets and corresponding liabilities. The Company’s lease terms and conditions may include options to extend or terminate. An option is recognized when it is reasonably certain that Coherent will exercise that option. The Company’s lease assets also include any lease payments made and exclude any lease incentives received prior to commencement. Our lease assets are tested for impairment in the same manner as long-lived assets used in operations. The following table presents lease costs, which include leases for arrangements with an initial term of more than 12 months, lease term, and discount rates ($000): Three Months Ended March 31, 2023 Nine Months Ended Finance lease cost Amortization of right-of-use assets $ 417 $ 1,250 Interest on lease liabilities 279 851 Total finance lease cost 696 2,101 Operating lease cost 13,324 39,817 Total lease cost $ 14,020 $ 41,918 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 279 $ 851 Operating cash flows from operating leases 12,578 37,843 Financing cash flows from finance leases 369 1,056 Weighted-Average Remaining Lease Term (in Years) Finance leases 8.8 Operating leases 6.7 Weighted-Average Discount Rate Finance leases 5.6 % Operating leases 5.5 % Three Months Ended Nine Months Ended Finance Lease Cost Amortization of right-of-use assets $ 417 $ 1,255 Interest on lease liabilities 298 907 Total finance lease cost $ 715 $ 2,162 Operating lease cost 9,240 27,635 Sublease income — 507 Total lease cost $ 9,955 $ 29,290 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 298 $ 907 Operating cash flows from operating leases 8,899 26,565 Financing cash flows from finance leases 332 954

Equity and Redeemable Preferred

Equity and Redeemable Preferred Stock	9 Months Ended
Equity and Redeemable Preferred Stock	Mar. 31, 2023
Equity [Abstract]
Equity and Redeemable Preferred Stock	Equity and Redeemable Preferred Stock Mandatory Convertible Preferred Stock In July 2020, the Company issued 2.3 million shares of Mandatory Convertible Preferred Stock. Unless previously converted, each outstanding share of Mandatory Convertible Preferred Stock will automatically convert on the Mandatory Conversion Date (as defined in the Statement with Respect to Shares establishing the Mandatory Convertible Preferred Stock) into a number of shares of Coherent Common Stock equal to not more than 4.6512 shares and not less than 3.8760 shares (the “ Minimum Conversion Rate ” ), depending on the applicable market value of the Coherent Common Stock, subject to certain anti-dilution adjustments. Other than in the event of one of certain fundamental changes, a holder of Mandatory Convertible Preferred Stock may, at any time prior to July 1, 2023, elect to convert such holder's shares, in whole or in part, at a Minimum Conversion Rate per share of Mandatory Convertible Preferred Stock, subject to certain anti-dilution adjustments. If one of certain fundamental changes occurs on or prior to July 1, 2023, holders of the Mandatory Convertible Preferred Stock will have the right to convert their shares of Mandatory Convertible Preferred Stock, in whole or in part, into shares of Coherent Common Stock at the conversion rate determined in accordance with the terms of the Mandatory Convertible Preferred Stock during the period beginning on, and including, the effective date of such change and ending on, and including, the date that is 20 calendar days after the effective date of such fundamental change (or, if later, the date that is 20 calendar days after holders receive notice of such fundamental change, but in no event later than July 1, 2023). Holders who convert their shares of the Mandatory Convertible Preferred Stock during that period will also receive a dividend make-whole amount and, to the extent there is any, the accumulated dividend amount, in each case as calculated in accordance with the terms of the Mandatory Convertible Preferred Stock. The Company recognized $7 million and $21 million of preferred stock dividends for the three and nine months ended March 31, 2023, respectively, associated with the Mandatory Convertible Preferred Stock. The Company recognized $7 million and $21 million of preferred stock dividends for the three and nine months ended March 31, 2022, respectively, associated with the Mandatory Convertible Preferred Stock. The preferred dividends were presented as a reduction to retained earnings on the Condensed Consolidated Balance Sheet as of March 31, 2023. The following table presents dividends per share and dividends recognized for the three and nine months ended March 31, 2023 and March 31, 2022: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Dividends per share $ 3.00 $ 3.00 $ 9.00 $ 9.00 Mandatory Convertible Preferred Stock dividends ($000) 6,900 6,900 20,700 20,700 Series B-1 Convertible Preferred Stock In March 2021, the Company issued 75,000 shares of Series B-1 Convertible Preferred Stock, no par value per share ("Series B-1 Preferred Stock"). The shares of Series B-1 Preferred Stock are convertible into shares of Coherent Common Stock as follows: • at the election of the holder, at an initial conversion price of $85 per share (as it may be adjusted from time to time, the “Conversion Price”) upon the delivery by Coherent to the holders of the Series B-1 Preferred Stock of an offer to repurchase the Series B-1 Preferred Stock upon the occurrence of a Fundamental Change (as defined in the Statement with Respect to Shares establishing the Series B Preferred Stock as defined below); and • at the election of the Company, any time following March 31, 2024 at the then-applicable Conversion Price if the volume-weighted average price of Coherent Common Stock exceeds 150% of the then-applicable Conversion Price for 20 trading days out of any 30 consecutive trading days. The issued shares of Series B-1 Preferred Stock currently have voting rights, voting as one class with the Coherent Common Stock and the Series B-2 Preferred Stock (as defined below), on an as-converted basis, subject to limited exceptions. On or at any time after March 31, 2031: • each holder has the right to require the Company to redeem all of their Coherent Series B-1 Convertible Preferred Stock, for cash, at a redemption price per share equal to the sum of the Stated Value (as defined in the Statement with Respect to Shares establishing the Series B Preferred Stock) for such shares plus an amount equal to all accrued or declared and unpaid dividends on such shares that had not previously been added to the Stated Value (such price the “Redemption Price,” and such right the “Put Right”); and • the Company has the right to redeem, in whole or in part, on a pro rata basis from all holders based on the aggregate number of shares of Series B-1 Preferred Stock outstanding, for cash, at the Redemption Price. In connection with any Fundamental Change (as defined in the Statement with Respect to Shares establishing the Series B Preferred Stock), and subject to the procedures set forth in the Statement with Respect to Shares establishing the Series B Preferred Stock, the Company must, or will cause the survivor of a Fundamental Change to, make an offer to repurchase, at the option and election of the holder thereof, each share of Series B-1 Preferred Stock then-outstanding at a purchase price per share in cash equal to (i) the Stated Value for such shares plus an amount equal to all accrued or declared and unpaid dividends on such shares that had not previously been added to the Stated Value as of the date of repurchase plus (ii) if prior to March 31, 2026, the aggregate amount of all dividends that would have been paid (subject to certain exceptions), from the date of repurchase through March 31, 2026. If the Company defaults on a payment obligation with respect to the Series B-1 Preferred Stock and such default is not cured within 30 days, the dividend rate will increase to 8% per annum and will be increased by an additional 2% per annum each quarter the Company remains in default, not to exceed 14% per annum. The Series B-1 Preferred Stock is redeemable for cash outside of the control of the Company upon the exercise of the Put Right, and upon a Fundamental Change, and is therefore classified as mezzanine equity. The Series B-1 Preferred Stock is initially measured at fair value less issuance costs, accreted to its redemption value over a 10-year period (using the effective interest method) with such accretion accounted for as deemed dividends and reductions to Net Earnings Available to Common Shareholders. Series B-2 Convertible Preferred Stock On July 1, 2022, the Company issued 140,000 shares of Series B-2 Convertible Preferred Stock, no par value per share (“Series B-2 Preferred Stock” and, together with the Series B-1 Preferred Stock, the “Series B Preferred Stock”). The shares of Series B-2 Preferred Stock are convertible into shares of Coherent Common Stock as follows: • at the election of the holder the Conversion Price upon the delivery by Coherent to the holders of the Series B-2 Preferred Stock of an offer to repurchase the Coherent Series B-2 Convertible Preferred Stock upon the occurrence of a Fundamental Change (as defined in the Statement with Respect to Shares establishing the Series B Preferred Stock); and • at the election of the Company, any time following July 1, 2025 at the then-applicable Conversion Price if the volume-weighted average price of Coherent Common Stock exceeds 150% of the then-applicable Conversion Price for 20 trading days out of any 30 consecutive trading days. The issued shares of Series B-2 Convertible Preferred Stock currently have voting rights, voting as one class with the Coherent Common Stock and the Series B-1 Preferred Stock, on an as-converted basis, subject to limited exceptions. On or at any time after July 1, 2032: • each holder has the right to require the Company to redeem all of their Series B-2 Preferred Stock, for cash, at a redemption price per share equal to the sum of the Stated Value for such shares (as defined in the Statement with Respect to Shares establishing the Series B Preferred Stock) plus an amount equal to all accrued or declared and unpaid dividends on such shares that had not previously been added to the Stated Value (such price the “Redemption Price,” and such right the “Put Right”); and • the Company has the right to redeem, in whole or in part, on a pro rata basis from all holders based on the aggregate number of shares of Series B-2 Preferred Stock outstanding, for cash, at the Redemption Price. In connection with any Fundamental Change, and subject to the procedures set forth in the Statement with Respect to Shares establishing the Series B Preferred Stock, the Company must, or will cause the survivor of a Fundamental Change to, make an offer to repurchase, at the option and election of the holder thereof, each share of Series B-2 Preferred Stock then-outstanding at a purchase price per share in cash equal to (i) the Stated Value for such shares plus an amount equal to all accrued or declared and unpaid dividends on such shares that had not previously been added to the Stated Value as of the date of repurchase plus (ii) if prior to July 1, 2027, the aggregate amount of all dividends that would have been paid (subject to certain exceptions), from the date of repurchase through July 1, 2027. If the Company defaults on a payment obligation with respect to the Series B-2 Preferred Stock and such default is not cured within 30 days, the dividend rate will increase to 8% per annum and will be increased by an additional 2% per annum each quarter the Company remains in default, not to exceed 14% per annum. The Series B-2 Preferred Stock is redeemable for cash outside of the control of the Company upon the exercise of the Put Right, and upon a Fundamental Change, and is therefore classified as mezzanine equity. The Series B-2 Preferred Stock is initially measured at fair value less issuance costs, accreted to its redemption value over a 10-year period (using the effective interest method) with such accretion accounted for as deemed dividends and reductions to Net Earnings Available to Common Shareholders. The Company recognized $29 million and $87 million of preferred stock dividends related to the Series B Preferred Stock for the three and nine months ended March 31, 2023, respectively. The Company recognized $10 million and $30 million of preferred stock dividends related to the Series B Preferred Stock for the three and nine months ended March 31, 2022, respectively. The preferred stock dividends were presented as a reduction to retained earnings on the Condensed Consolidated Balance Sheet as of March 31, 2023. The following table presents dividends per share and dividends recognized for the three and nine months ended March 31, 2023 and March 31, 2022: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Dividends per share $ 136 $ 137 $ 404 $ 403 Dividends ($000) 27,969 9,732 83,267 28,743 Deemed dividends ($000) 1,202 516 3,570 1,490

Earnings (Loss) Per Share

Earnings (Loss) Per Share	9 Months Ended
Earnings (Loss) Per Share	Mar. 31, 2023
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	Earnings (Loss) Per Share Basic earnings (loss) per common share is computed by dividing net earnings (loss) available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings (loss) per common share is computed by dividing the diluted earnings (loss) available to common shareholders by the weighted-average number of shares of common stock and potentially dilutive shares of common stock outstanding during the period. For the three and nine months ended March 31, 2023, as the Company was in a net loss position, no dilution was included in the calculation of earnings (loss) per share. Potentially dilutive shares whose effect would have been anti-dilutive are excluded from the computation of diluted earnings (loss) per common share. For the three and nine months ended March 31, 2023, diluted earnings (loss) per share excluded the potentially dilutive effect of the performance and restricted shares, calculated based on the average stock price for each fiscal period, using the treasury stock method, as well as the shares of Coherent Common Stock issuable upon conversion of outstanding convertible debt, the Mandatory Convertible Preferred Stock and the Series B Convertible Preferred Stock (under the If-Converted method), as their effects were anti-dilutive. The following is a reconciliation of the numerators and denominators of the basic and diluted earnings (loss) per share computations for the three and nine months ended March 31, 2023 and March 31, 2022 ($000): Three Months Ended Nine Months Ended March 31, 2023 2022 2023 2022 Numerator Net earnings (loss) $ 2,546 $ 49,002 $ (81,224) $ 191,123 Deduct Series A preferred stock dividends (6,900) (6,900) (20,700) (20,700) Deduct Series B dividends and deemed dividends (29,171) (10,248) (86,837) (30,233) Basic earnings (loss) available to common shareholders $ (33,525) $ 31,854 $ (188,761) $ 140,190 Effect of dilutive securities: Add back interest on Convertible Notes (net of tax) $ — $ 571 $ — $ 1,650 Diluted earnings (loss) available to common shareholders $ (33,525) $ 32,425 $ (188,761) $ 141,840 Denominator Weighted average shares 139,113 106,323 136,990 106,079 Effect of dilutive securities: Common stock equivalents — 3,296 — 3,001 Convertible Notes — 7,330 — 7,330 Diluted weighted average common shares 139,113 116,949 136,990 116,410 Basic earnings (loss) per common share $ (0.24) $ 0.30 $ (1.38) $ 1.32 Diluted earnings (loss) per common share $ (0.24) $ 0.28 $ (1.38) $ 1.22 The following table presents potential shares of Coherent Common Stock excluded from the calculation of diluted earnings (loss) per share as their effect would have been anti-dilutive for the three and nine months ended March 31, 2023 and March 31, 2022 ($000): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Common stock equivalents 2,416 2 2,334 12 Convertible Notes — — 1,491 — Series A Mandatory Convertible Preferred Stock 10,697 8,915 10,331 8,915 Series B Convertible Preferred Stock 26,511 9,217 26,185 9,105 Total anti-dilutive shares 39,624 18,134 40,341 18,032

Segment Reporting

Segment Reporting	9 Months Ended
Segment Reporting	Mar. 31, 2023
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Company reports its business segments using the “management approach” model for segment reporting. This means that the Company determines its reportable business segments based on the way the chief operating decision-maker organizes business segments within the Company for making operating decisions and assessing financial performance. On July 1, 2022, the Company completed its acquisition of Legacy Coherent. See Note 3. Coherent Acquisition for further information. The operating results of Legacy Coherent are reflected in the Lasers segment. Effective July 1, 2022, the Company reports its financial results in the following three segments: (i) Networking, (ii) Materials, and (iii) Lasers. Previously, financial results had been reported in the following two segments: (i) Photonic Solutions and (ii) Compound Semiconductors. The Networking segment represents the former Photonic Solutions segment and the Materials segment represents the former Compound Semiconductors segment. The Company’s chief operating decision maker receives and reviews financial information based on these three segments. The Company evaluates business segment performance based upon segment operating income, which is defined as earnings before income taxes, interest and other income or expense. The segments are managed separately due to the market, production requirements and facilities unique to each segment. The accounting policies are consistent across each segment. To the extent possible, the Company’s corporate expenses and assets are allocated to the segments. The expenses associated with the Legacy Coherent acquisition for the three and nine months ended March 31, 2023 are wholly allocated to the Lasers segment. For the three and nine months ended March 31, 2022, the expenses associated with the acquisition of Legacy Coherent were not allocated to an operating segment, and were presented in Unallocated and Other. In addition, prior year numbers were recast to reflect the transfer of two entities between the Networking and Materials segments. The following tables summarize selected financial information of the Company’s operations by segment ($000): Three Months Ended March 31, 2023 Networking Materials Lasers Unallocated Total Revenues $ 551,099 $ 323,769 $ 365,326 $ — $ 1,240,194 Inter-segment revenues 17,759 96,604 317 (114,680) — Operating income (loss) 49,476 67,826 (49,914) — 67,388 Interest expense — — — — (75,183) Other income (expense), net — — — — 3,048 Income tax benefit — — — — 7,293 Net earnings — — — — 2,546 Depreciation and amortization 41,369 29,242 90,330 — 160,941 Expenditures for property, plant & equipment 6,441 78,666 12,038 — 97,145 Segment assets 3,435,816 2,275,614 8,406,202 — 14,117,632 Goodwill 1,012,006 273,341 3,219,790 — 4,505,137 Three Months Ended March 31, 2022 Networking Materials Unallocated Total Revenues $ 559,560 $ 268,164 $ — $ 827,724 Inter-segment revenues 23,945 59,345 (83,290) — Operating income (loss) 54,618 61,754 (9,604) 106,768 Interest expense — — — (43,499) Other income (expense), net — — — (241) Income taxes — — — (14,027) Net earnings — — — 49,002 Depreciation and amortization 44,126 28,691 — 72,817 Expenditures for property, plant & equipment 18,363 75,939 — 94,302 Nine Months Ended March 31, 2023 Networking Materials Lasers Unallocated Total Revenues $ 1,756,327 $ 1,061,809 $ 1,136,913 $ — $ 3,955,049 Inter-segment revenues 54,129 277,502 1,400 (333,031) — Operating income (loss) 230,497 224,633 (337,020) — 118,110 Interest expense — — — — (207,976) Other income (expense), net — — — — (32,253) Income tax benefit — — — — 40,895 Net earnings — — — — (81,224) Depreciation and amortization 124,384 83,804 269,948 — 478,136 Expenditures for property, plant & equipment 80,654 215,038 47,307 — 342,999 Nine Months Ended March 31, 2022 Networking Materials Unallocated Total Revenues $ 1,607,114 $ 822,540 $ — $ 2,429,654 Inter-segment revenues 80,666 199,202 (279,868) — Operating income (loss) 164,481 165,071 (29,511) 300,041 Interest expense — — — (72,752) Other income (expense), net — — — 5,535 Income taxes — — — (41,701) Net earnings — — — 191,123 Depreciation and amortization 128,504 85,031 — 213,535 Expenditures for property, plant & equipment 53,779 142,211 — 195,991

Share-Based Compensation

Share-Based Compensation	9 Months Ended
Share-Based Compensation	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation Stock Award Plans The Company’s Board of Directors amended and restated the Coherent Corp. 2018 Omnibus Incentive Plan, which originally was approved by the Company's shareholders at the Annual Meeting in November 2018 (as amended and restated, the "Plan"). The Plan was approved by the Company's shareholders at the Annual Meeting in November 2020. The Plan provides for the grant of non-qualified stock options, stock appreciation rights, restricted shares, restricted share units, deferred shares, performance shares and performance share units to employees, officers and directors of the Company. The maximum number of shares of Coherent Common Stock authorized for issuance under the Plan is limited to 9,550,000 shares of Coherent Common Stock, not including any remaining shares forfeited under the predecessor plans that may be rolled into the Plan. The Plan has vesting provisions predicated upon the death, retirement or disability of the grantee. On the Closing Date, the Company assumed 403,675 Legacy Coherent restricted stock units ("Converted RSUs"). The Converted RSUs are generally subject to the same terms and conditions that applied to the RSUs immediately prior to the Closing Date. Other than the assumed Converted RSUs, Coherent did not assume any other awards outstanding under Legacy Coherent equity incentive plans. On the Closing Date, Coherent assumed the unused capacity under Legacy Coherent equity incentive plan, which totaled 10,959,354 shares of issuable Coherent Common Stock. Share-based compensation expense for the periods indicated was as follows ($000): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Stock Options and Cash-Based Stock Appreciation Rights $ 767 $ 1,635 $ 927 $ 4,107 Restricted Share Awards and Cash-Based Restricted Share Unit Awards 29,533 13,317 103,003 44,449 Performance Share Awards and Cash-Based Performance Share Unit Awards 2,936 2,614 13,267 8,380 $ 33,236 $ 17,566 $ 117,197 $ 56,936

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
Fair Value of Financial Instruments	Mar. 31, 2023
Business Combinations [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The FASB defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous markets for the asset and liability in an orderly transaction between market participants at the measurement date. The Company estimates fair value of its financial instruments utilizing an established three-level hierarchy in accordance with U.S. GAAP. The hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date as follows: • Level 1 –Valuation is based upon unadjusted quoted prices for identical assets or liabilities in active markets. • Level 2 –Valuation is based upon quoted prices for similar assets and liabilities in active markets, or other inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instruments. • Level 3 –Valuation is based upon other unobservable inputs that are significant to the fair value measurements. The classification of fair value measurements within the hierarchy is based upon the lowest level of input that is significant to the measurement. The Company entered into an interest rate swap with a notional amount of $1,075 million to limit the exposure to its variable interest rate debt by effectively converting it to a fixed interest rate. Through February 28, 2023, the Company received payments based on the one-month LIBOR and made payments based on a fixed rate of 1.52%. The Company received payments with a floor of 0.00%. The interest rate swap agreement had an effective date of November 24, 2019, with an expiration date of September 24, 2024. The initial notional amount of the interest rate swap was decreased to $825 million in June 2022 and will remain at that amount through the expiration date. On March 20, 2023, the Company amended its $825 million interest rate swap ("Amended Swap"), effective as of February 28, 2023, to replace the current reference rate (LIBOR) with SOFR, to be consistent with the amended credit agreement. See Note 8. Debt for further information. Under the Amended Swap, the Company receives payments based on the one-month SOFR and makes payments based on a fixed rate of 1.42%. The Company receives payments with a floor of 0.10%. The Company designated this instrument as a cash flow hedge and deemed the hedge relationship effective at inception of the contract and amended contract. The fair value of the interest rate swap of $ 35 million On February 23, 2022, the Company entered into an interest rate cap ("the Cap") with an effective date of July 1, 2023. On March 20, 2023, the Company amended the Cap to replace the current reference rate (LIBOR) with SOFR, to be consistent with the amended credit agreement. See Note 8. Debt for further information. The Cap manages the Company's exposure to interest rate movements on a portion of the Company's floating rate debt. The Cap provides the Company with the right to receive payment if one-month SOFR exceeds 1.92%. Beginning in July 2023, the Company will begin to pay a fixed monthly premium based on an annual rate of 0.853% for the Cap. The Cap will carry a notional amount ranging from $500 million to $1,500 million. The fair value of the interest rate cap of $ 28 The Cap, as amended, is designed to mirror the terms of the Credit Agreement as amended on March 31, 2023. The Company designated the Cap as a cash flow hedge of the variability of the SOFR based interest payments on the Term Loan Facilities. Every period over the life of the hedging relationship, the entire change in fair value related to the hedging instrument will first be recorded within accumulated other comprehensive income (loss). Amounts accumulated in accumulated other comprehensive income (loss) will be reclassified into interest expense in the same period or periods in which interest expense is recognized on the Credit Agreement, or its direct replacement. The fair value of the Cap is determined using widely accepted valuation techniques and reflects the contractual terms of the Cap including the period to maturity, and while there are no quoted prices in active markets, it uses observable market-based inputs, including interest rate curves. The Cap is classified as a Level 2 item within the fair value hierarchy. The Company estimated the fair value of the Senior Notes based on quoted market prices as of the last trading day prior to March 31, 2023; however, the Senior Notes have only a limited trading volume and as such this fair value estimate is not necessarily the value at which the Senior Notes could be retired or transferred. The Company concluded that this fair value measurement should be categorized within Level 2. The carrying value of the Senior Notes is net of unamortized discount and issuance costs. See Note 8. Debt for details on the Company’s debt facilities. The fair value and carrying value of the Convertible Notes and Senior Notes were as followed ($000): March 31, 2023 June 30, 2022 Fair Value Carrying Value Fair Value Carrying Value Convertible Notes $ — $ — $ 382,601 $ 341,162 Senior Notes $ 901,326 $ 982,914 $ 865,527 $ 982,297 The fair values of cash and cash equivalents are considered Level 1 among the fair value hierarchy and approximate fair value because of the short-term maturity of those instruments. The Company’s borrowings including its lease obligations and the Senior Notes, are considered Level 2 among the fair value hierarchy and their principal amounts approximate fair value. The Company, from time to time, purchases foreign currency forward exchange contracts that permit it to transact specified amounts of these foreign currencies for pre-established U.S. dollar amounts at specified dates that represent assets or liabilities on the balance sheets of certain subsidiaries. These contracts are entered into for the purpose of limiting translational exposure to changes in currency exchange rates and which otherwise would expose the Company's earnings, on the revaluation of its aggregate net assets or liabilities in respective currencies, to foreign currency risk. At March 31, 2023, the Company had foreign currency forward contracts recorded at fair value. The fair values of these instruments were measured using valuations based upon quoted prices for similar assets and liabilities in active markets (Level 2) and are valued by reference to similar financial instruments, adjusted for credit risk and restrictions and other terms specific to the contracts. Realized gains related to these contracts for the three and nine months ended March 31, 2023 were $0 million and $5 million, respectively, and were included in other expense (income), net in the Condensed Consolidated Statements of Earnings (Loss).

Share Repurchase Programs

Share Repurchase Programs	9 Months Ended
Share Repurchase Programs	Mar. 31, 2023
Equity [Abstract]
Share Repurchase Programs	Share Repurchase ProgramsIn August 2014, the Company’s Board of Directors authorized the Company to purchase up to $50 million of Coherent Common Stock through a share repurchase program (the “Program”) that calls for shares to be purchased in the open market or in private transactions from time to time. The Program has no expiration and may be suspended or discontinued at any time. Shares purchased by the Company are retained as treasury stock and available for general corporate purposes. The Company did not repurchase any shares pursuant to this Program during the quarter ended March 31, 2023. As of March 31, 2023, the Company has cumulatively purchased 1,416,587 shares of Coherent Common Stock pursuant to the Program for approximately $22 million. The dollar value of shares as of March 31, 2023 that may yet be purchased under the Program is approximately $28 million.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
Accumulated Other Comprehensive Income	Mar. 31, 2023
Equity [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The changes in accumulated other comprehensive income (loss) (“AOCI”) by component, net of tax, for the nine months ended March 31, 2023 were as follows ($000): Foreign Interest Interest Defined Total AOCI - June 30, 2022 $ (34,572) $ 11,735 $ 14,306 $ 6,364 $ (2,167) Other comprehensive income before reclassifications 157,805 17,895 7,646 1,151 184,497 Amounts reclassified from AOCI — (11,876) — — (11,876) Net current-period other comprehensive income 157,805 6,019 7,646 1,151 172,621 AOCI - March 31, 2023 $ 123,233 $ 17,754 $ 21,952 $ 7,515 $ 170,454

Subsequent Events

Subsequent Events	9 Months Ended
Subsequent Events	Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 10, 2023, the Company announced that it plans to take certain additional restructuring actions that will run through the end of fiscal year 2025 (the "Plan") in light of the macro conditions and its ongoing efforts to make the Company more efficient. The Plan includes certain restructuring actions including workforce reductions to reduce costs and expenses as well as site consolidations, including the relocation of certain manufacturing facilities, to increase its resiliency and lower its costs. We anticipate incurring approximately $150 million to $200 million of restructuring and other non-recurring costs to reduce the workforce and relocate facilities, among others, in connection with the Plan. On May 10, 2023, the Company announced that it has commenced a review of strategic alternatives for its Silicon Carbide “SiC” business. The Company expects to consider a range of strategic alternatives including a minority investment in the SiC business by a strategic or financial partner, joint venture, and/or a sale of the SiC business.

Recently Issued Financial Acc_2

Recently Issued Financial Accounting Standards (Policies)	9 Months Ended
Recently Issued Financial Accounting Standards (Policies)	Mar. 31, 2023
Accounting Policies [Abstract]
Recently Issued Financial Accounting Standards	Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting In March 2020, the Financial Accounting Standards Board (the “FASB”) issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This topic provides optional expedients to ease the potential burden of accounting for the effects of reference rate reform as it pertains to contract modifications of debt and lease contracts and derivative contracts identified in a hedging relationship. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. In December 2022, the FASB issued ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, to extend the temporary accounting rules under Topic 848 from December 31, 2022 to December 31, 2024. The Company adopted Topic 848 in the three months ended March 31, 2023 and applied the practical expedients under Topic 848 to account for modifications and updates to its floating rate debt, its interest rate swap and its interest rate cap. Application of these practical expedients allowed the Company to maintain hedge accounting for its interest rate cap and swap contracts. The adoption did not have a material impact on the Company's consolidated financial statements. Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”), which requires an acquirer to recognize and measure contract assets and liabilities acquired in a business combination in accordance with Accounting Standards Codification ASC 606: Revenue from Contracts with Customers, rather than adjust them to fair value at the acquisition date. We have adopted this accounting standard as of July 1, 2022. The acquisition of Coherent, Inc. has been accounted for in accordance with ASU 2021-08, as will any future acquisitions. Results of operations for quarterly periods prior to adoption remain unchanged as a result of the adoption of ASU No. 2021-08. Refer to Note 3. Coherent Acquisition for further information.

Coherent Acquisition (Tables)

Coherent Acquisition (Tables)	9 Months Ended
Coherent Acquisition (Tables)	Mar. 31, 2023
Business Combination and Asset Acquisition [Abstract]
Fair Value of Consideration	The preliminary total fair value of consideration paid in connection with the acquisition of Coherent, Inc. consisted of the following (in $000): Shares Per Share Total Consideration Cash paid for merger consideration — — $ 5,460,808 Shares of COHR common stock issued to Legacy Coherent stockholders 22,587,885 $49.83 1,125,554 Converted Legacy Coherent RSUs attributable to pre-combination service — — 82,037 Payment of Legacy Coherent debt — — 364,544 Payment of Legacy Coherent transaction expenses — — 62,840 $ 7,095,783
Schedule of Preliminary Purchase Price Allocation of Assets Acquired and Liabilities Assumed	Our preliminary allocation of the $7.1 billion purchase price of Legacy Coherent, based on the estimated fair value of the assets acquired and liabilities assumed as of the Closing Date, is as follows (in $000): Preliminary Allocation as of 7/1/2022 as adjusted through 3/31/23 Previously Reported September 30, 2022 Measurement Period Adjustments (i) As Adjusted (preliminary) Assets Current Assets Cash, cash equivalents, and restricted cash $ 393,324 $ — $ 393,324 Accounts receivable 270,928 — 270,928 Inventories (ii) 497,345 66,540 563,885 Prepaid and refundable income taxes (iii) 8,869 (1,592) 7,277 Prepaid and other current assets 41,467 — 41,467 Total Current Assets 1,211,933 64,948 1,276,881 Property, plant & equipment, net (iv) 424,228 16,704 440,932 Deferred income taxes (iii) 1,115 (793) 322 Other assets 102,726 — 102,726 Other intangible assets, net (v) 2,425,454 1,079,546 3,505,000 Goodwill 4,005,727 (862,497) 3,143,230 Total Assets $ 8,171,183 $ 297,908 $ 8,469,091 Liabilities Current Liabilities Current portion of long-term debt $ 4,504 $ — $ 4,504 Accounts payable 116,754 — 116,754 Accrued compensation and benefits 60,596 — 60,596 Operating lease current liabilities 13,002 — 13,002 Accrued income taxes payable 16,936 — 16,936 Other accrued liabilities (vi) 136,042 702 136,744 Total Current Liabilities 347,834 702 348,536 Long-term debt 22,991 — 22,991 Deferred income taxes (iii) 563,824 292,168 855,992 Operating lease liabilities 43,313 — 43,313 Other liabilities (vi) 97,438 5,038 102,476 Total Liabilities $ 1,075,400 $ 297,908 $ 1,373,308 Preliminary aggregate acquisition consideration $ 7,095,783 $ — $ 7,095,783 (i) The Company recorded measurement period adjustments to its preliminary acquisition date fair values due to the refinement of its valuation models, assumptions and inputs. The following measurement period adjustments were based upon information obtained about facts and circumstances that existed at the acquisition date that, if known, would have affected the measurement of the amounts recognized at that date. (ii) The Condensed Combined Balance Sheet has been adjusted to record Legacy Coherent’s inventories at a preliminary fair value of approximately $564 million, an increase of $67 million from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. The Condensed Combined Statement of Earnings (Loss) for the three and nine months ended March 31, 2023 includes cost of goods sold of approximately zero and $158 million, respectively, related to the increased basis in the preliminary fair value compared to the carrying value. The costs are being amortized over the expected period during which the acquired inventory is sold, and thus are not anticipated to affect the Condensed Consolidated Statements of Earnings (Loss) beyond twelve months after the Closing Date. (iii) The Company has adjusted its prepaid and refundable income taxes, deferred tax asset and deferred tax liability positions as of March 31, 2023, to $7 million, zero and $856 million, respectively, as a result of measurement period adjustments. (iv) The Condensed Consolidated Balance Sheet has been adjusted to record Legacy Coherent’s property, plant and equipment (consisting of land, buildings and improvements, equipment, furniture and fixtures, and leasehold improvements) at a preliminary fair value of approximately $441 million, an increase of $17 million from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. The Condensed Consolidated Statements of Earnings (Loss) have been adjusted to recognize additional depreciation expense related to the increased basis. The additional depreciation expense is computed with the assumption that the various categories of assets will be depreciated over their remaining useful lives on a straight-line basis. (v) Preliminary identifiable intangible assets in the Condensed Combined Balance Sheet increased $1.1 billion from the preliminary fair value reported at September 30, 2022 with a corresponding decrease to goodwill. Intangibles amortization recorded in cost of goods sold for the three and nine months ended March 31, 2023 was $21 million and $64 million, respectively. Intangibles amortization recorded in selling, general and administrative expenses for the three and nine months ended March 31, 2023 was $51 million and $156 million, respectively. Preliminary identifiable intangible assets consist of the following and are being amortized over their estimated useful lives in the Condensed Consolidated Statements of Earnings (Loss) (in $000): Preliminary Estimated Useful Life Trade names and trademarks $ 430,000 N/A Customer relationships 1,830,000 15 years Developed technology 1,157,500 13.5 years Backlog 87,500 1.0 year Intangible assets acquired $ 3,505,000 (vi) The Company recorded approximately $1 million of increases in other current liabilities and $5 million of increases in other liabilities as measurement period adjustments.
Unaudited Supplemental Pro Forma Financial Information	The unaudited supplemental pro forma financial information for the periods presented is as follows (in $000): Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Revenue $ 1,240,194 $ 1,197,928 Net Earnings 36,294 6,482 Nine Months Ended March 31, 2023 Nine Months Ended March 31, 2022 Revenue $ 3,955,049 $ 3,576,039 Net Earnings (Loss) 247,715 (234,815)

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	9 Months Ended
Revenue from Contracts with Customers (Tables)	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Summary of Disaggregated Revenue by Market and Product	The following tables summarize disaggregated revenue for the three and nine months ended March 31, 2023 and 2022 ($000): Three Months Ended March 31, 2023 Nine Months Ended March 31, 2023 Networking Materials Lasers Total Networking Materials Lasers Total Industrial $ 17,570 $ 156,846 $ 263,789 $ 438,205 $ 52,189 $ 450,383 $ 846,881 $ 1,349,453 Communications 521,291 17,014 — 538,305 1,664,205 59,553 — 1,723,758 Electronics 2,849 136,229 — 139,078 9,674 509,803 — 519,477 Instrumentation 9,389 13,680 101,537 124,606 30,259 42,070 290,032 362,361 Total Revenues $ 551,099 $ 323,769 $ 365,326 $ 1,240,194 $ 1,756,327 $ 1,061,809 $ 1,136,913 $ 3,955,049 Three Months Ended March 31, 2022 Nine Months Ended March 31, 2022 Networking Materials Total Networking Materials Total Industrial $ 21,325 $ 164,346 $ 185,671 $ 63,050 $ 486,094 $ 549,144 Communications 527,821 25,999 553,820 1,510,092 69,436 1,579,528 Electronics 2,752 60,240 62,992 9,080 220,683 229,763 Instrumentation 7,662 17,579 25,241 24,892 46,327 71,219 Total Revenues $ 559,560 $ 268,164 $ 827,724 $ 1,607,114 $ 822,540 $ 2,429,654

Inventories (Tables)

Inventories (Tables)	9 Months Ended
Inventories (Tables)	Mar. 31, 2023
Inventory Disclosure [Abstract]
Components of Inventories	The components of inventories were as follows ($000): March 31, June 30, Raw materials $ 490,479 $ 318,758 Work in progress 621,295 408,405 Finished goods 282,329 175,396 $ 1,394,103 $ 902,559

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
Property, Plant and Equipment (Tables)	Mar. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consists of the following ($000): March 31, June 30, Land and improvements $ 74,908 $ 19,368 Buildings and improvements 686,293 415,530 Machinery and equipment 2,030,892 1,651,762 Construction in progress 311,051 271,605 Finance lease right-of-use asset 24,999 25,000 3,128,143 2,383,265 Less accumulated depreciation (1,217,582) (1,020,070) $ 1,910,561 $ 1,363,195

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
Goodwill and Other Intangible Assets (Tables)	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	Changes in the carrying amount of goodwill were as follows ($000): Nine Months Ended March 31, 2023 Networking Materials Lasers Total Balance-beginning of period $ 1,048,743 $ 237,016 $ — $ 1,285,759 Transfer between segments (1) (35,466) 35,466 — — Goodwill acquired — — 3,143,230 3,143,230 Foreign currency translation (1,271) 859 76,560 76,148 Balance-end of period $ 1,012,006 $ 273,341 $ 3,219,790 $ 4,505,137 (1) Refer to Note 13. Segment Reporting for information regarding the segment transfer of goodwill between segments.
Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill	The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of March 31, 2023 and June 30, 2022 were as follows ($000): March 31, 2023 June 30, 2022 Gross Accumulated Net Gross Accumulated Net Book Value Technology $ 1,669,863 $ (238,908) $ 1,430,955 $ 473,845 $ (144,409) $ 329,436 Trade Names 452,461 (8,073) 444,388 22,536 (7,454) 15,082 Customer Lists 2,352,969 (296,873) 2,056,096 464,880 (173,994) 290,886 Backlog and Other 90,072 (67,313) 22,759 1,563 (1,563) — Total $ 4,565,365 $ (611,167) $ 3,954,198 $ 962,824 $ (327,420) $ 635,404

Debt (Tables)

Debt (Tables)	9 Months Ended
Debt (Tables)	Mar. 31, 2023
Debt Disclosure [Abstract]
Components of Debt	The components of debt as of the dates indicated were as follows ($000): March 31, June 30, New Term A Facility, interest at adjusted SOFR, as defined, plus 1.750% $ 828,750 $ — Debt issuance costs, New Term A Facility and New Revolving Credit Facility (19,290) — New Term B Facility, interest at adjusted SOFR, as defined, plus 2.750% 2,676,000 — Debt issuance costs, New Term B Facility (68,773) — 1.30% Term loan due 2024 66 — 1.00% State of Connecticut term loan due 2023 2,040 — Facility construction loan in Germany due 2030 23,126 — Existing Term A Facility, interest at LIBOR, as defined, plus 1.375% — 995,363 Debt issuance costs, Existing Term A Facility and Existing Revolving Credit Facility — (18,396) 5.000% Senior Notes 990,000 990,000 Debt issuance costs and discount, Senior Notes (7,086) (7,703) 0.25% Convertible Senior Notes — 341,501 Debt issuance costs and discount, 0.25% Convertible Senior Notes — (339) Total debt 4,424,833 2,300,426 Current portion of long-term debt (74,910) (403,212) Long-term debt, less current portion $ 4,349,923 $ 1,897,214

Leases (Tables)

Leases (Tables)	9 Months Ended
Leases (Tables)	Mar. 31, 2023
Leases [Abstract]
Schedule of Lease Costs, Including Short-Term Leases, Lease Term, and Discount Rates	The following table presents lease costs, which include leases for arrangements with an initial term of more than 12 months, lease term, and discount rates ($000): Three Months Ended March 31, 2023 Nine Months Ended Finance lease cost Amortization of right-of-use assets $ 417 $ 1,250 Interest on lease liabilities 279 851 Total finance lease cost 696 2,101 Operating lease cost 13,324 39,817 Total lease cost $ 14,020 $ 41,918 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 279 $ 851 Operating cash flows from operating leases 12,578 37,843 Financing cash flows from finance leases 369 1,056 Weighted-Average Remaining Lease Term (in Years) Finance leases 8.8 Operating leases 6.7 Weighted-Average Discount Rate Finance leases 5.6 % Operating leases 5.5 % Three Months Ended Nine Months Ended Finance Lease Cost Amortization of right-of-use assets $ 417 $ 1,255 Interest on lease liabilities 298 907 Total finance lease cost $ 715 $ 2,162 Operating lease cost 9,240 27,635 Sublease income — 507 Total lease cost $ 9,955 $ 29,290 Cash Paid for Amounts Included in the Measurement of Lease Liabilities Operating cash flows from finance leases $ 298 $ 907 Operating cash flows from operating leases 8,899 26,565 Financing cash flows from finance leases 332 954

Equity and Redeemable Preferr_2

Equity and Redeemable Preferred Stock (Tables)	9 Months Ended
Equity and Redeemable Preferred Stock (Tables)	Mar. 31, 2023
Equity [Abstract]
Schedule of Dividends	The following table presents dividends per share and dividends recognized for the three and nine months ended March 31, 2023 and March 31, 2022: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Dividends per share $ 3.00 $ 3.00 $ 9.00 $ 9.00 Mandatory Convertible Preferred Stock dividends ($000) 6,900 6,900 20,700 20,700 The following table presents dividends per share and dividends recognized for the three and nine months ended March 31, 2023 and March 31, 2022: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Dividends per share $ 136 $ 137 $ 404 $ 403 Dividends ($000) 27,969 9,732 83,267 28,743 Deemed dividends ($000) 1,202 516 3,570 1,490

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	9 Months Ended
Earnings (Loss) Per Share (Tables)	Mar. 31, 2023
Earnings Per Share [Abstract]
Computation of Earnings Per Share	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings (loss) per share computations for the three and nine months ended March 31, 2023 and March 31, 2022 ($000): Three Months Ended Nine Months Ended March 31, 2023 2022 2023 2022 Numerator Net earnings (loss) $ 2,546 $ 49,002 $ (81,224) $ 191,123 Deduct Series A preferred stock dividends (6,900) (6,900) (20,700) (20,700) Deduct Series B dividends and deemed dividends (29,171) (10,248) (86,837) (30,233) Basic earnings (loss) available to common shareholders $ (33,525) $ 31,854 $ (188,761) $ 140,190 Effect of dilutive securities: Add back interest on Convertible Notes (net of tax) $ — $ 571 $ — $ 1,650 Diluted earnings (loss) available to common shareholders $ (33,525) $ 32,425 $ (188,761) $ 141,840 Denominator Weighted average shares 139,113 106,323 136,990 106,079 Effect of dilutive securities: Common stock equivalents — 3,296 — 3,001 Convertible Notes — 7,330 — 7,330 Diluted weighted average common shares 139,113 116,949 136,990 116,410 Basic earnings (loss) per common share $ (0.24) $ 0.30 $ (1.38) $ 1.32 Diluted earnings (loss) per common share $ (0.24) $ 0.28 $ (1.38) $ 1.22
Schedule of Potential Shares of Common Stock Excluded from the Calculation of Diluted Net Income Per Share	The following table presents potential shares of Coherent Common Stock excluded from the calculation of diluted earnings (loss) per share as their effect would have been anti-dilutive for the three and nine months ended March 31, 2023 and March 31, 2022 ($000): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Common stock equivalents 2,416 2 2,334 12 Convertible Notes — — 1,491 — Series A Mandatory Convertible Preferred Stock 10,697 8,915 10,331 8,915 Series B Convertible Preferred Stock 26,511 9,217 26,185 9,105 Total anti-dilutive shares 39,624 18,134 40,341 18,032

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
Segment Reporting (Tables)	Mar. 31, 2023
Segment Reporting [Abstract]
Financial Information of Company's Operation by Segment	The following tables summarize selected financial information of the Company’s operations by segment ($000): Three Months Ended March 31, 2023 Networking Materials Lasers Unallocated Total Revenues $ 551,099 $ 323,769 $ 365,326 $ — $ 1,240,194 Inter-segment revenues 17,759 96,604 317 (114,680) — Operating income (loss) 49,476 67,826 (49,914) — 67,388 Interest expense — — — — (75,183) Other income (expense), net — — — — 3,048 Income tax benefit — — — — 7,293 Net earnings — — — — 2,546 Depreciation and amortization 41,369 29,242 90,330 — 160,941 Expenditures for property, plant & equipment 6,441 78,666 12,038 — 97,145 Segment assets 3,435,816 2,275,614 8,406,202 — 14,117,632 Goodwill 1,012,006 273,341 3,219,790 — 4,505,137 Three Months Ended March 31, 2022 Networking Materials Unallocated Total Revenues $ 559,560 $ 268,164 $ — $ 827,724 Inter-segment revenues 23,945 59,345 (83,290) — Operating income (loss) 54,618 61,754 (9,604) 106,768 Interest expense — — — (43,499) Other income (expense), net — — — (241) Income taxes — — — (14,027) Net earnings — — — 49,002 Depreciation and amortization 44,126 28,691 — 72,817 Expenditures for property, plant & equipment 18,363 75,939 — 94,302 Nine Months Ended March 31, 2023 Networking Materials Lasers Unallocated Total Revenues $ 1,756,327 $ 1,061,809 $ 1,136,913 $ — $ 3,955,049 Inter-segment revenues 54,129 277,502 1,400 (333,031) — Operating income (loss) 230,497 224,633 (337,020) — 118,110 Interest expense — — — — (207,976) Other income (expense), net — — — — (32,253) Income tax benefit — — — — 40,895 Net earnings — — — — (81,224) Depreciation and amortization 124,384 83,804 269,948 — 478,136 Expenditures for property, plant & equipment 80,654 215,038 47,307 — 342,999 Nine Months Ended March 31, 2022 Networking Materials Unallocated Total Revenues $ 1,607,114 $ 822,540 $ — $ 2,429,654 Inter-segment revenues 80,666 199,202 (279,868) — Operating income (loss) 164,481 165,071 (29,511) 300,041 Interest expense — — — (72,752) Other income (expense), net — — — 5,535 Income taxes — — — (41,701) Net earnings — — — 191,123 Depreciation and amortization 128,504 85,031 — 213,535 Expenditures for property, plant & equipment 53,779 142,211 — 195,991

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
Share-Based Compensation (Tables)	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation Expense by Award Type	Share-based compensation expense for the periods indicated was as follows ($000): Three Months Ended Nine Months Ended 2023 2022 2023 2022 Stock Options and Cash-Based Stock Appreciation Rights $ 767 $ 1,635 $ 927 $ 4,107 Restricted Share Awards and Cash-Based Restricted Share Unit Awards 29,533 13,317 103,003 44,449 Performance Share Awards and Cash-Based Performance Share Unit Awards 2,936 2,614 13,267 8,380 $ 33,236 $ 17,566 $ 117,197 $ 56,936

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
Fair Value of Financial Instruments (Tables)	Mar. 31, 2023
Business Combinations [Abstract]
Summary of Fair Value and Carrying Value Notes	The fair value and carrying value of the Convertible Notes and Senior Notes were as followed ($000): March 31, 2023 June 30, 2022 Fair Value Carrying Value Fair Value Carrying Value Convertible Notes $ — $ — $ 382,601 $ 341,162 Senior Notes $ 901,326 $ 982,914 $ 865,527 $ 982,297

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
Accumulated Other Comprehensive Income (Tables)	Mar. 31, 2023
Equity [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss) ("AOCI") by Component, Net of Tax	The changes in accumulated other comprehensive income (loss) (“AOCI”) by component, net of tax, for the nine months ended March 31, 2023 were as follows ($000): Foreign Interest Interest Defined Total AOCI - June 30, 2022 $ (34,572) $ 11,735 $ 14,306 $ 6,364 $ (2,167) Other comprehensive income before reclassifications 157,805 17,895 7,646 1,151 184,497 Amounts reclassified from AOCI — (11,876) — — (11,876) Net current-period other comprehensive income 157,805 6,019 7,646 1,151 172,621 AOCI - March 31, 2023 $ 123,233 $ 17,754 $ 21,952 $ 7,515 $ 170,454

Coherent Acquisition - Narrativ

Coherent Acquisition - Narrative (Details) - USD ($)		3 Months Ended	9 Months Ended
Coherent Acquisition - Narrative (Details) - USD ($)	Jul. 01, 2022	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Business Acquisition [Line Items]
Merger funding, net cash outflow			$ 5,488,556,000	$ 0
Acquisition related costs		$ 11,000,000	83,000,000
Goodwill		4,505,137,000	4,505,137,000		$ 1,285,759,000
New Term Loan A Credit Facility
Business Acquisition [Line Items]
Debt financing amount	$ 850,000,000
New Term Loan B Credit Facility
Business Acquisition [Line Items]
Debt financing amount	2,800,000,000
Revolving Credit Facility
Business Acquisition [Line Items]
Debt financing amount	350,000,000
Letter of Credit
Business Acquisition [Line Items]
Debt financing amount	50,000,000
Credit Agreement
Business Acquisition [Line Items]
Debt financing amount	$ 4,000,000,000
Coherent Inc.
Business Acquisition [Line Items]
Common stock, par value (in usd per share)	$ 0.01
Business combination, cash consideration paid per acquiree share (in usd per share)	$ 220
Number of shares to be received (in shares)	0.91
Merger funding, net cash outflow	$ 2,100,000,000
Purchase consideration	7,095,783,000
Revenues		365,000,000	1,137,000,000
Net loss		(65,000,000)	(364,000,000)
Goodwill	$ 4,005,727,000	$ 3,143,230,000	$ 3,143,230,000
Coherent Inc. \| Common Stock
Business Acquisition [Line Items]
Shares issued in conjunction with closing of merger (in shares)	22,587,885

Coherent Acquisition - Prelimin

Coherent Acquisition - Preliminary Fair Value of Consideration Paid (Details) - Coherent Inc. $ / shares in Units, $ in Thousands	Jul. 01, 2022 USD ($) $ / shares shares
Business Acquisition [Line Items]
Cash paid for merger consideration	$ 5,460,808
Payment of Legacy Coherent debt	364,544
Payment of Legacy Coherent transaction expenses	62,840
Total Consideration	$ 7,095,783
Common Stock
Business Acquisition [Line Items]
Shares of COHR common stock issued to Legacy Coherent stockholders (in shares) \| shares	22,587,885
Shares of COHR common stock issued to Legacy Coherent stockholders (in usd per share) \| $ / shares	$ 49.83
Shares of COHR common stock issued to Legacy Coherent stockholders and converted Legacy Coherent RSUs attributable to pre-combination service	$ 1,125,554
Common Stock \| RSUs
Business Acquisition [Line Items]
Shares of COHR common stock issued to Legacy Coherent stockholders and converted Legacy Coherent RSUs attributable to pre-combination service	$ 82,037

Coherent Acquisition - Prelim_2

Coherent Acquisition - Preliminary Allocation of Assets Acquired and Liabilities Assumed (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Jul. 01, 2022	Jun. 30, 2022
Current Assets
Goodwill	$ 4,505,137,000		$ 4,505,137,000			$ 1,285,759,000
Liabilities
Cost of goods sold	820,038,000	$ 506,051,000	2,680,131,000	$ 1,490,190,000
Amortization			280,667,000	$ 59,820,000
Coherent Inc.
Current Assets
Cash, cash equivalents, and restricted cash	393,324,000		393,324,000		$ 393,324,000
Accounts receivable	270,928,000		270,928,000		270,928,000
Inventory	563,885,000		563,885,000		497,345,000
Prepaid and refundable income taxes	7,277,000		7,277,000		8,869,000
Prepaid and other current assets	41,467,000		41,467,000		41,467,000
Total Current Assets	1,276,881,000		1,276,881,000		1,211,933,000
Property, plant, and equipment, net	440,932,000		440,932,000		424,228,000
Deferred income taxes	322,000		322,000		1,115,000
Other assets	102,726,000		102,726,000		102,726,000
Other intangible assets, net	3,505,000,000		3,505,000,000		2,425,454,000
Goodwill	3,143,230,000		3,143,230,000		4,005,727,000
Total Assets	8,469,091,000		8,469,091,000		8,171,183,000
Current Liabilities
Current portion of long-term debt	4,504,000		4,504,000		4,504,000
Accounts payable	116,754,000		116,754,000		116,754,000
Accrued compensation and benefits	60,596,000		60,596,000		60,596,000
Operating lease current liabilities	13,002,000		13,002,000		13,002,000
Accrued income taxes payable	16,936,000		16,936,000		16,936,000
Other accrued liabilities	136,744,000		136,744,000		136,042,000
Total Current Liabilities	348,536,000		348,536,000		347,834,000
Long-term debt	22,991,000		22,991,000		22,991,000
Deferred income taxes	855,992,000		855,992,000		563,824,000
Operating lease liabilities	43,313,000		43,313,000		43,313,000
Other liabilities	102,476,000		102,476,000		97,438,000
Total Liabilities	1,373,308,000		1,373,308,000		1,075,400,000
Preliminary aggregate acquisition consideration	7,095,783,000		7,095,783,000		$ 7,095,783,000
Assets
Inventory adjustment			66,540,000
Prepaid and refundable income taxes			(1,592,000)
Total Current Assets			64,948,000
Property, plant & equipment adjustment			16,704,000
Deferred income taxes			(793,000)
Intangibles assets			1,079,546,000
Goodwill			(862,497,000)
Total Assets			297,908,000
Liabilities
Other accrued liabilities			702,000
Total Current Liabilities			702,000
Deferred income taxes			292,168,000
Other liabilities			5,038,000
Total Liabilities			297,908,000
Coherent Inc. \| Cost of Goods Sold
Liabilities
Amortization	21,000,000		64,000,000
Coherent Inc. \| Selling, General and Administrative Expenses
Liabilities
Amortization	51,000,000		156,000,000
Coherent Inc. \| Fair Value Adjustment to Inventory
Liabilities
Cost of goods sold	$ 0		158,000,000
Coherent Inc. \| Fair Value Adjustment to Property, Plant and Equipment
Assets
Inventory adjustment			145,000,000
Property, plant & equipment adjustment			$ 17,000,000

Coherent Acquisition - Prelim_3

Coherent Acquisition - Preliminary Identifiable Intangible Assets Acquired (Details) - Coherent Inc. - USD ($) $ in Thousands	Jul. 01, 2022	Mar. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 2,425,454	$ 3,505,000
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 1,830,000
Estimated Useful Life	15 years
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 1,157,500
Estimated Useful Life	13 years 6 months
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 87,500
Estimated Useful Life	1 year
Trade names and trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Trade names and trademarks	$ 430,000

Coherent Acquisition - Unaudite

Coherent Acquisition - Unaudited Supplemental Pro Forma Information (Details) - Coherent Inc. - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Business Acquisition [Line Items]
Revenue	$ 1,240,194	$ 1,197,928	$ 3,955,049	$ 3,576,039
Net Earnings (Loss)	$ 36,294	$ 6,482	$ 247,715	$ (234,815)

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Additional Information (Detail) $ in Millions		9 Months Ended
	Jul. 01, 2022 USD ($) entity customerEndMarket	Mar. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items]
Number of end markets \| customerEndMarket	4
Number of entities transferred \| entity	2
Revenue recognized related to customer payments		$ 18
Contract liabilities		181
Contract liability included in other accrued liabilities		116
Contract liability recorded in other liabilities		$ 65
Coherent Inc.
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 77

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Summary of Disaggregated Revenue by Market and Product (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 1,240,194	$ 827,724	$ 3,955,049	$ 2,429,654
Networking \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	551,099	559,560	1,756,327	1,607,114
Materials \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	323,769	268,164	1,061,809	822,540
Lasers \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	365,326		1,136,913
Industrial
Disaggregation of Revenue [Line Items]
Revenues	438,205	185,671	1,349,453	549,144
Industrial \| Networking \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	17,570	21,325	52,189	63,050
Industrial \| Materials \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	156,846	164,346	450,383	486,094
Industrial \| Lasers \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	263,789		846,881
Communications
Disaggregation of Revenue [Line Items]
Revenues	538,305	553,820	1,723,758	1,579,528
Communications \| Networking \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	521,291	527,821	1,664,205	1,510,092
Communications \| Materials \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	17,014	25,999	59,553	69,436
Communications \| Lasers \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	0		0
Electronics
Disaggregation of Revenue [Line Items]
Revenues	139,078	62,992	519,477	229,763
Electronics \| Networking \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	2,849	2,752	9,674	9,080
Electronics \| Materials \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	136,229	60,240	509,803	220,683
Electronics \| Lasers \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	0		0
Instrumentation
Disaggregation of Revenue [Line Items]
Revenues	124,606	25,241	362,361	71,219
Instrumentation \| Networking \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	9,389	7,662	30,259	24,892
Instrumentation \| Materials \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	13,680	$ 17,579	42,070	$ 46,327
Instrumentation \| Lasers \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	$ 101,537		$ 290,032

Inventories - Components (Detai

Inventories - Components (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 490,479	$ 318,758
Work in progress	621,295	408,405
Finished goods	282,329	175,396
Inventories	$ 1,394,103	$ 902,559

Inventories - Narrative (Detail

Inventories - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
Inventories - Narrative (Details) - USD ($)	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Inventory [Line Items]
Cost of goods sold	$ 820,038,000	$ 506,051,000	$ 2,680,131,000	$ 1,490,190,000
Coherent Inc. \| Fair Value Adjustment to Inventory
Inventory [Line Items]
Cost of goods sold	$ 0		$ 158,000,000

Property Plant and Equipment -

Property Plant and Equipment - Summary (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Property, Plant and Equipment [Line Items]
Finance lease right-of-use asset	$ 24,999	$ 25,000
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation	3,128,143	2,383,265
Less accumulated depreciation	(1,217,582)	(1,020,070)
Property, plant, and equipment, net	1,910,561	1,363,195
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	74,908	19,368
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	686,293	415,530
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,030,892	1,651,762
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 311,051	$ 271,605

Property, Plant and Equipment -

Property, Plant and Equipment - Narrative (Details) - Coherent Inc. $ in Thousands	9 Months Ended
	Mar. 31, 2023 USD ($)
Property, Plant and Equipment [Line Items]
Inventory adjustment	$ 66,540
Fair Value Adjustment to Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Inventory adjustment	$ 145,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	9 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Roll Forward]
Balance-beginning of period	$ 1,285,759
Transfer between segments	0
Goodwill acquired	3,143,230
Foreign currency translation	76,148
Balance-end of period	4,505,137
Networking
Goodwill [Roll Forward]
Balance-beginning of period	1,048,743
Transfer between segments	(35,466)
Goodwill acquired	0
Foreign currency translation	(1,271)
Balance-end of period	1,012,006
Materials
Goodwill [Roll Forward]
Balance-beginning of period	237,016
Transfer between segments	35,466
Goodwill acquired	0
Foreign currency translation	859
Balance-end of period	273,341
Lasers
Goodwill [Roll Forward]
Balance-beginning of period	0
Transfer between segments	0
Goodwill acquired	3,143,230
Foreign currency translation	76,560
Balance-end of period	$ 3,219,790

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,565,365	$ 962,824
Accumulated Amortization	(611,167)	(327,420)
Net Book Value	3,954,198	635,404
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,669,863	473,845
Accumulated Amortization	(238,908)	(144,409)
Net Book Value	1,430,955	329,436
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	452,461	22,536
Accumulated Amortization	(8,073)	(7,454)
Net Book Value	444,388	15,082
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,352,969	464,880
Accumulated Amortization	(296,873)	(173,994)
Net Book Value	2,056,096	290,886
Backlog and Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	90,072	1,563
Accumulated Amortization	(67,313)	(1,563)
Net Book Value	$ 22,759	$ 0

Debt - Components of Debt (Deta

Debt - Components of Debt (Detail) - USD ($) $ in Thousands		9 Months Ended
Debt - Components of Debt (Detail) - USD ($) $ in Thousands	Jul. 01, 2022	Mar. 31, 2023	Aug. 31, 2022	Jun. 30, 2022	Dec. 10, 2021	Aug. 31, 2017
Line of Credit Facility [Line Items]
Total debt		$ 4,424,833		$ 2,300,426
Current portion of long-term debt		(74,910)		(403,212)
Long-term debt, less current portion		$ 4,349,923		1,897,214
1.30% Term loan due 2024
Line of Credit Facility [Line Items]
Debt instrument, interest rate		1.30%
Total debt, gross		$ 66		0
1.00% State of Connecticut term loan due 2023
Line of Credit Facility [Line Items]
Debt instrument, interest rate		1%
Total debt, gross		$ 2,040		0
Facility construction loan in Germany due 2030
Line of Credit Facility [Line Items]
Total debt, gross		$ 23,126		0
5.000% Senior Notes
Line of Credit Facility [Line Items]
Debt instrument, interest rate		5%			5%
Total debt, gross		$ 990,000		990,000
Debt issuance costs and discount, Senior notes and 0.25% convertible senior notes		$ (7,086)		(7,703)
0.25% Convertible Senior Notes
Line of Credit Facility [Line Items]
Debt instrument, interest rate		0.25%				0.25%
Total debt, gross		$ 0	$ 4,000	341,501
Debt issuance costs and discount, Senior notes and 0.25% convertible senior notes		0		(339)
New Term Loan A Credit Facility
Line of Credit Facility [Line Items]
Total debt, gross		$ 828,750		0
New Term Loan A Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		1.75%
New Term A Loan Facility And Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt issuance costs		$ (19,290)		0
New Term Loan B Credit Facility
Line of Credit Facility [Line Items]
Total debt, gross		2,676,000		0
Debt issuance costs		$ (68,773)		0
New Term Loan B Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	2.75%	2.75%
Existing Term A Loan Facility
Line of Credit Facility [Line Items]
Total debt, gross		$ 0		995,363
Existing Term A Loan Facility \| LIBOR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		1.375%
Existing Term A Facility and Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt issuance costs		$ 0		$ (18,396)

Debt - Senior Credit Facility (

Debt - Senior Credit Facility (Details) - USD ($)			3 Months Ended	9 Months Ended
Debt - Senior Credit Facility (Details) - USD ($)	Mar. 31, 2023	Jul. 01, 2022	Mar. 31, 2023	Mar. 31, 2023	Dec. 10, 2021
Line of Credit Facility [Line Items]
Debt issuance costs capitalized	$ 90,000,000		$ 90,000,000	$ 90,000,000
Senior Credit Facilities
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 4,000,000,000
Amortization of debt issuance costs			$ 5,000,000	$ 14,000,000
5.000% Senior Notes
Line of Credit Facility [Line Items]
Debt instrument, interest rate	5%		5%	5%	5%
New Term Loan A Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 850,000,000
New Term Loan A Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate				1.75%
New Term Loan A Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.10%
New Term Loan A Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		1.75%
New Term Loan A Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		2.50%
New Term Loan B Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 2,800,000,000
New Term Loan B Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		2.75%		2.75%
New Term Loan B Credit Facility \| New Term Loan B Credit Facility
Line of Credit Facility [Line Items]
Amortization of debt issuance costs			$ 69,000,000	$ 183,000,000
New Term Loan B Credit Facility \| New Term Loan B Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		0.50%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 350,000,000
Revolving Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate				1.75%
Revolving Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate	0.10%
Revolving Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR \| Minimum
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		1.75%
Revolving Credit Facility \| Term A Facility and Revolving Credit Facility \| SOFR \| Maximum
Line of Credit Facility [Line Items]
Debt instrument, rate added on variable rate		2.50%
Letter of Credit
Line of Credit Facility [Line Items]
Aggregate principal amount		$ 50,000,000

Debt - Prior Senior Credit Faci

Debt - Prior Senior Credit Facilities (Details) - USD ($)	3 Months Ended	9 Months Ended
Debt - Prior Senior Credit Facilities (Details) - USD ($)	Sep. 30, 2022	Mar. 31, 2023	Mar. 31, 2022	Jul. 01, 2022	Jun. 30, 2022
Line of Credit Facility [Line Items]
Current portion of long-term debt		$ 74,910,000			$ 403,212,000
Long-term debt		4,349,923,000			1,897,214,000
Debt extinguishment costs		(6,835,000)	$ 0
Revolving Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount				$ 350,000,000
Letter of Credit
Line of Credit Facility [Line Items]
Aggregate principal amount				$ 50,000,000
Bank of America, N.A.
Line of Credit Facility [Line Items]
Swing loan sub-facility maximum initial borrowing capacity					20,000,000
Bank of America, N.A. \| Senior Secured Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount					2,400,000,000
Current portion of long-term debt					62,000,000
Long-term debt					933,000,000
Debt extinguishment costs		$ (17,000,000)
Bank of America, N.A. \| Term A Loan
Line of Credit Facility [Line Items]
Aggregate principal amount					1,255,000,000
Debt agreement term	5 years
Bank of America, N.A. \| Term B Loan
Line of Credit Facility [Line Items]
Aggregate principal amount					720,000,000
Debt agreement term	7 years
Bank of America, N.A. \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Aggregate principal amount					450,000,000
Debt agreement term	5 years
Bank of America, N.A. \| Letter of Credit
Line of Credit Facility [Line Items]
Aggregate principal amount					$ 25,000,000

Debt - Bridge Loan (Details)

Debt - Bridge Loan (Details) - Bridge Loan - USD ($)	9 Months Ended
Debt - Bridge Loan (Details) - Bridge Loan - USD ($)	Mar. 31, 2023	Jul. 01, 2022
Line of Credit Facility [Line Items]
Aggregate principal amount of bridge loan		$ 990,000,000
Interest expense	$ 18,000,000

Debt - Assumed Through Acquisit

Debt - Assumed Through Acquisition (Details) $ in Thousands, € in Millions	Dec. 21, 2020 EUR (€)	Mar. 31, 2023 USD ($)	Jul. 01, 2022 USD ($) Segment	Jun. 30, 2022 USD ($)
Coherent Inc.
Debt Instrument [Line Items]
Number of loans assumed \| Segment			3
Aggregate principal outstanding			$ 25,000
Line of credit \| Foreign Line of Credit
Debt Instrument [Line Items]
Debt instrument, interest rate	1.55%
Line of credit \| Coherent Inc. \| Foreign Line of Credit
Debt Instrument [Line Items]
Borrowing capacity \| €	€ 24
Debt agreement term	10 years
1.30% Term loan due 2024
Debt Instrument [Line Items]
Aggregate principal outstanding		$ 66		$ 0
Debt instrument, interest rate		1.30%
1.30% Term loan due 2024 \| Coherent Inc.
Debt Instrument [Line Items]
Debt instrument, interest rate			1.30%
1.00% State of Connecticut term loan due 2023
Debt Instrument [Line Items]
Aggregate principal outstanding		$ 2,040		$ 0
Debt instrument, interest rate		1%
1.00% State of Connecticut term loan due 2023 \| Coherent Inc.
Debt Instrument [Line Items]
Debt instrument, interest rate			1%

Debt - Senior Notes and Additio

Debt - Senior Notes and Additional Information (Details) - USD ($) shares in Millions		3 Months Ended		9 Months Ended
	Dec. 10, 2021	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2023	Aug. 31, 2022	Jun. 30, 2022	Aug. 31, 2017
Debt Instrument [Line Items]
Available credit under lines of credit		$ 348,000,000		$ 348,000,000
5.000% Senior Notes
Debt Instrument [Line Items]
Debt instrument, interest rate	5%	5%		5%
Aggregate principal amount	$ 990,000,000
Interest expense		$ 13,000,000		$ 38,000,000
Aggregate principal outstanding		$ 990,000,000		$ 990,000,000		$ 990,000,000
5.000% Senior Notes \| Senior Notes, Redemption, Period One
Debt Instrument [Line Items]
Redemption price percentage	100%
5.000% Senior Notes \| Senior Notes, Redemption, Period Two
Debt Instrument [Line Items]
Redemption price percentage	40%
5.000% Senior Notes \| Senior Notes, Redemption, Period Three
Debt Instrument [Line Items]
Redemption price percentage	105%
0.25% Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument, interest rate		0.25%		0.25%			0.25%
Aggregate principal amount							$ 345,000,000
Debt converted amount			$ 332,000,000
Debt conversion, shares issued (in shares)			7
Aggregate principal outstanding		$ 0		$ 0	$ 4,000,000	$ 341,501,000

Income Taxes (Detail)

Income Taxes (Detail) - USD ($) $ in Millions	9 Months Ended
Income Taxes (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Effective income tax rate, percent	33%	18%
U.S. statutory rate	21%
Unrecognized tax benefits	$ 66		$ 37
Unrecognized tax benefits that would impact effective tax rate	27
Interest and penalties accrued	$ 6		$ 3

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Finance Lease Cost
Amortization of right-of-use assets	$ 417	$ 417	$ 1,250	$ 1,255
Interest on lease liabilities	279	298	851	907
Total finance lease cost	696	715	2,101	2,162
Operating lease cost	13,324	9,240	39,817	27,635
Sublease income		0		507
Total lease cost	14,020	9,955	41,918	29,290
Cash Paid for Amounts Included in the Measurement of Lease Liabilities
Operating cash flows from finance leases	279	298	851	907
Operating cash flows from operating leases	12,578	8,899	37,843	26,565
Financing cash flows from finance leases	$ 369	$ 332	$ 1,056	$ 954
Weighted-Average Remaining Lease Term (in Years)
Finance leases	8 years 9 months 18 days		8 years 9 months 18 days
Operating leases	6 years 8 months 12 days		6 years 8 months 12 days
Weighted-Average Discount Rate
Finance leases	5.60%		5.60%
Operating leases	5.50%		5.50%

Equity and Redeemable Preferr_3

Equity and Redeemable Preferred Stock - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended		9 Months Ended
	Jul. 01, 2022 $ / shares shares	Jul. 31, 2022 day	Mar. 31, 2021 day $ / shares shares	Jul. 31, 2020 day shares	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($) shares	Mar. 31, 2023 USD ($) $ / shares	Mar. 31, 2022 USD ($)	Jun. 30, 2022 $ / shares
Series A Mandatory Convertible Preferred Stock
Class of Stock [Line Items]
Date after effective date of change \| day				20
Mandatory Convertible Preferred Stock
Class of Stock [Line Items]
Preferred stock dividends \| $					$ 7,000	$ 7,000	$ 21,000	$ 21,000
Series B-1 Convertible Preferred Stock
Class of Stock [Line Items]
Shares issued (in shares)			75,000
Redeemable convertible preferred stock, par value (in usd per share) \| $ / shares			$ 0
Debt instrument conversion, conversion price per share (in usd per share) \| $ / shares			$ 85
Common stock , conversion, if volume weighted average price, percentage exceeds applicable conversion price			150%
Trading days \| day			20
Consecutive trading days \| day			30
Default on payment obligation, cure period			30 days
Default on payment obligation, dividend rate, quarterly increase, percentage			2%
Preferred stock, accretion of redemption value, period			10 years
Series B-1 Convertible Preferred Stock \| Maximum
Class of Stock [Line Items]
Preferred stock, default on payment obligation, dividend rate, percentage			14%
Series B-1 Convertible Preferred Stock \| Minimum
Class of Stock [Line Items]
Preferred stock, default on payment obligation, dividend rate, percentage			8%
Series B-2 Convertible Preferred Stock
Class of Stock [Line Items]
Sale of stock, shares issued (in shares)	140,000
Preferred stock, par value (in usd per share) \| $ / shares	$ 0
Common stock , conversion, if volume weighted average price, percentage exceeds applicable conversion price		150%
Trading days \| day		20
Consecutive trading days \| day		30
Default on payment obligation, cure period		30 days
Preferred stock, default on payment obligation, dividend rate, percentage		8%
Default on payment obligation, dividend rate, quarterly increase, percentage		2%
Preferred stock, accretion of redemption value, period		10 years
Series B-2 Convertible Preferred Stock \| Maximum
Class of Stock [Line Items]
Preferred stock, default on payment obligation, dividend rate, percentage		14%
Preferred Shares
Class of Stock [Line Items]
Preferred stock dividends \| $					$ 29,171	$ 10,248	$ 86,837	$ 30,233
Shares issued (in shares)						0
Redeemable convertible preferred stock, par value (in usd per share) \| $ / shares					$ 0		$ 0		$ 0
Underwritten Public Offering \| Series A Mandatory Convertible Preferred Stock
Class of Stock [Line Items]
Sale of stock, shares issued (in shares)				2,300,000
Underwritten Public Offering \| Series A Mandatory Convertible Preferred Stock \| Maximum
Class of Stock [Line Items]
Convertible preferred stock, shares issued upon conversion (in shares)				4.6512
Underwritten Public Offering \| Series A Mandatory Convertible Preferred Stock \| Minimum
Class of Stock [Line Items]
Convertible preferred stock, shares issued upon conversion (in shares)				3.8760

Equity and Redeemable Preferr_4

Equity and Redeemable Preferred Stock - Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Class of Stock [Line Items]
Preferred stock dividends	$ 36,071	$ 17,148	$ 107,537	$ 50,933
Mandatory Convertible Preferred Stock
Class of Stock [Line Items]
Dividends per share (in usd per share)	$ 3	$ 3	$ 9	$ 9
Preferred stock dividends	$ 6,900	$ 6,900	$ 20,700	$ 20,700
Series B Convertible Preferred Stock
Class of Stock [Line Items]
Dividends per share (in usd per share)	$ 136	$ 137	$ 404	$ 403
Preferred stock dividends	$ 27,969	$ 9,732	$ 83,267	$ 28,743
Deemed dividends	$ 1,202	$ 516	$ 3,570	$ 1,490

Earnings (Loss) Per Share - Com

Earnings (Loss) Per Share - Computation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Numerator
Net earnings (loss)	$ 2,546	$ 49,002	$ (81,224)	$ 191,123
Deduct Series A preferred stock dividends	(36,071)	(17,148)	(107,537)	(50,933)
Net Earnings (Loss) available to the Common Shareholders	(33,525)	31,854	(188,761)	140,190
Add back interest on Convertible Notes (net of tax)	0	571	0	1,650
Diluted earnings (loss) available to common shareholders	$ (33,525)	$ 32,425	$ (188,761)	$ 141,840
Denominator
Weighted average shares (in shares)	139,113	106,323	136,990	106,079
Effect of dilutive securities:
Common stock equivalents (in shares)	0	3,296	0	3,001
II-VI Convertible Notes (in shares)	0	7,330	0	7,330
Diluted weighted average common shares (in shares)	139,113	116,949	136,990	116,410
Basic earnings (loss) per common share (in usd per share)	$ (0.24)	$ 0.30	$ (1.38)	$ 1.32
Diluted earnings (loss) per common share (in usd per share)	$ (0.24)	$ 0.28	$ (1.38)	$ 1.22
Deduct Series A preferred stock dividends
Numerator
Deduct Series A preferred stock dividends	$ (6,900)	$ (6,900)	$ (20,700)	$ (20,700)
Deduct Series B dividends and deemed dividends
Numerator
Deduct Series A preferred stock dividends	(27,969)	(9,732)	(83,267)	(28,743)
Deduct Series B dividends and deemed dividends	$ (29,171)	$ (10,248)	$ (86,837)	$ (30,233)

Earnings (Loss) Per Share - Sch

Earnings (Loss) Per Share - Schedule of Potential Shares of Common Stock Excluded from the Calculation of Diluted Net Income Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive shares (in shares)	39,624	18,134	40,341	18,032
Common stock equivalents
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive shares (in shares)	2,416	2	2,334	12
Convertible Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive shares (in shares)	0	0	1,491	0
Series A Mandatory Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive shares (in shares)	10,697	8,915	10,331	8,915
Series B Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive shares (in shares)	26,511	9,217	26,185	9,105

Segment Reporting - Additional

Segment Reporting - Additional Information (Detail) - segment		12 Months Ended
	Jul. 01, 2022	Jun. 30, 2022
Segment Reporting [Abstract]
Number of reporting segments	3	2

Segment Reporting - Financial I

Segment Reporting - Financial Information of Company's Operations by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	$ 1,240,194	$ 827,724	$ 3,955,049	$ 2,429,654
Inter-segment revenues	0	0	0	0
Operating income (loss)	67,388	106,768	118,110	300,041
Interest expense	(75,183)	(43,499)	(207,976)	(72,752)
Other income (expense), net	3,048	(241)	(32,253)	5,535
Income tax benefit	(7,293)	14,027	(40,895)	41,701
Net earnings	2,546	49,002	(81,224)	191,123
Depreciation and amortization	160,941	72,817	478,136	213,535
Expenditures for property, plant & equipment	97,145	94,302	342,999	195,991
Segment assets	14,117,632		14,117,632		$ 7,844,846
Goodwill	4,505,137		4,505,137		1,285,759
Unallocated & Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	0	0	0	0
Inter-segment revenues	(114,680)	(83,290)	(333,031)	(279,868)
Operating income (loss)	0	(9,604)	0	(29,511)
Interest expense	0	0	0	0
Other income (expense), net	0	0	0	0
Income tax benefit	0	0	0	0
Net earnings	0	0	0	0
Depreciation and amortization	0	0	0	0
Expenditures for property, plant & equipment	0	0	0	0
Segment assets	0		0
Goodwill	0		0
Networking
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill	1,012,006		1,012,006		1,048,743
Networking \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	551,099	559,560	1,756,327	1,607,114
Inter-segment revenues	17,759	23,945	54,129	80,666
Operating income (loss)	49,476	54,618	230,497	164,481
Interest expense	0	0	0	0
Other income (expense), net	0	0	0	0
Income tax benefit	0	0	0	0
Net earnings	0	0	0	0
Depreciation and amortization	41,369	44,126	124,384	128,504
Expenditures for property, plant & equipment	6,441	18,363	80,654	53,779
Segment assets	3,435,816		3,435,816
Goodwill	1,012,006		1,012,006
Materials
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill	273,341		273,341		237,016
Materials \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	323,769	268,164	1,061,809	822,540
Inter-segment revenues	96,604	59,345	277,502	199,202
Operating income (loss)	67,826	61,754	224,633	165,071
Interest expense	0	0	0	0
Other income (expense), net	0	0	0	0
Income tax benefit	0	0	0	0
Net earnings	0	0	0	0
Depreciation and amortization	29,242	28,691	83,804	85,031
Expenditures for property, plant & equipment	78,666	$ 75,939	215,038	$ 142,211
Segment assets	2,275,614		2,275,614
Goodwill	273,341		273,341
Lasers
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill	3,219,790		3,219,790		$ 0
Lasers \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	365,326		1,136,913
Inter-segment revenues	317		1,400
Operating income (loss)	(49,914)		(337,020)
Interest expense	0		0
Other income (expense), net	0		0
Income tax benefit	0		0
Net earnings	0		0
Depreciation and amortization	90,330		269,948
Expenditures for property, plant & equipment	12,038		47,307
Segment assets	8,406,202		8,406,202
Goodwill	$ 3,219,790		$ 3,219,790

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail) - shares	Jul. 01, 2022	Nov. 30, 2020
Coherent Inc. \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards assumed from acquisition (in shares)	403,675
Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized for issuance under the Plan (in shares)		9,550,000
Equity Incentive Plans \| Coherent Inc.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unused capacity assumed (in shares)	10,959,354

Share-Based Compensation - Expe

Share-Based Compensation - Expense by Award Type (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 33,236	$ 17,566	$ 117,197	$ 56,936
Stock Options and Cash-Based Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	767	1,635	927	4,107
Restricted Share Awards and Cash-Based Restricted Share Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	29,533	13,317	103,003	44,449
Performance Share Awards and Cash-Based Performance Share Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 2,936	$ 2,614	$ 13,267	$ 8,380

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 20, 2023	Jun. 30, 2022	Feb. 23, 2022	Nov. 24, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid and other current assets	Prepaid and other current assets
Gain on derivative	$ 0	$ 5,000,000
Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount			$ 825,000,000	$ 825,000,000		$ 1,075,000,000
Fixed interest rate			0.10%			1.52%
Floor Interest rate			1.42%			0%
Derivative asset	35,000,000	35,000,000
Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed interest rate					0.853%
Derivative asset	$ 28,000,000	$ 28,000,000
Interest Rate Cap \| SOFR
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, trigger for right to receive payment, percent					1.92%
Interest Rate Cap \| Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount					$ 500,000,000
Interest Rate Cap \| Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional amount					$ 1,500,000,000

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Summary of Fair Value and Carrying Value of Notes (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
Convertible Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Convertible notes, fair value	$ 0	$ 382,601
Convertible notes carrying value	0	341,162
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior notes fair value	901,326	865,527
Senior notes carrying value	$ 982,914	$ 982,297

Share Repurchase Programs (Deta

Share Repurchase Programs (Detail) - USD ($)	3 Months Ended	104 Months Ended
Share Repurchase Programs (Detail) - USD ($)	Mar. 31, 2023	Mar. 31, 2023	Aug. 31, 2014
Equity [Abstract]
Stock repurchase program, authorized amount			$ 50,000,000
Purchase of common stock, shares (in shares)	0	1,416,587
Common stock repurchased		$ 22,000,000
Remaining repurchase amount	$ 28,000,000	$ 28,000,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Detail) $ in Thousands	9 Months Ended
	Mar. 31, 2023 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 3,616,475
Other comprehensive income before reclassifications	184,497
Amounts reclassified from AOCI	(11,876)
Net current-period other comprehensive income	172,621
Ending balance	5,239,436
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(34,572)
Other comprehensive income before reclassifications	157,805
Amounts reclassified from AOCI	0
Net current-period other comprehensive income	157,805
Ending balance	123,233
Interest Rate Swap/Interest Rate Cap \| Interest Rate Swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	11,735
Other comprehensive income before reclassifications	17,895
Amounts reclassified from AOCI	(11,876)
Net current-period other comprehensive income	6,019
Ending balance	17,754
Interest Rate Swap/Interest Rate Cap \| Interest Rate Cap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	14,306
Other comprehensive income before reclassifications	7,646
Amounts reclassified from AOCI	0
Net current-period other comprehensive income	7,646
Ending balance	21,952
Defined Benefit Pension Plan
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	6,364
Other comprehensive income before reclassifications	1,151
Amounts reclassified from AOCI	0
Net current-period other comprehensive income	1,151
Ending balance	7,515
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(2,167)
Ending balance	$ 170,454

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event $ in Millions	May 10, 2023 USD ($)
Minimum
Subsequent Event [Line Items]
Expected restructuring and other non-recurring costs	$ 150
Maximum
Subsequent Event [Line Items]
Expected restructuring and other non-recurring costs	$ 200