Clearwater Paper (CLW) 10-Q31 Oct 222022 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2022	Oct. 28, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Amendment Flag	false
Document Period End Date	Sep. 30, 2022
Entity File Number	001-34146
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Registrant Name	CLEARWATER PAPER CORPORATION
Entity Central Index Key	0001441236
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-3594554
Entity Address, Address Line One	601 West Riverside,
Entity Address, Address Line Two	Suite 1100
Entity Address, City or Town	Spokane,
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	99201
Current Fiscal Year End Date	--12-31
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	CLW
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Small Business	false
Document Transition Report	false
Entity Common Stock, Shares Outstanding		16,761,869
Local Phone Number	344-5900
City Area Code	509

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 50.8	$ 25.2
Receivables, Net	180.4	167.4
Inventories	326.8	277.7
Other current assets	12.1	16.9
Total current assets	570.2	487.2
Property, Plant and Equipment, Gross	2,968.6	2,961.5
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization	(1,945.4)	(1,879.7)
Property, plant and equipment, net	1,023.1	1,081.8
Other assets, net	110.3	121.1
TOTAL ASSETS	1,703.6	1,690.1
Current liabilities:
Current portion of long-term debt	1	1.6
Accounts Payable and Accrued Liabilities	294.1	252.5
Total current liabilities	295.1	254.1
Long-term Debt, Excluding Current Maturities	564.9	637.6
Liability for pension and other postretirement employee benefits	71.3	73.6
Deferred tax liabilities and other long-term obligations	203.1	213.1
Total liabilities	1,134.4	1,178.3
Stockholders' equity:
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	0	0
Additional paid-in capital	25.7	23.6
Retained earnings	582.7	530.7
Accumulated other comprehensive loss, net of tax	(39.1)	(42.6)
Total stockholders' equity	569.2	511.7
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,703.6	$ 1,690.1

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	16,761,869	16,692,102

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net Sales	$ 538.8	$ 450.5	$ 1,553.3	$ 1,282.8
Costs and expenses:
Cost of sales	(454.8)	(398.2)	(1,332)	(1,160.9)
Selling, general and administrative expenses	(32.9)	(28.3)	(99.6)	(82.5)
Other Cost and Expense, Operating	2.2	10.2	8.5	55.1
Total operating costs and expenses	489.9	436.7	1,440	1,298.5
Income (loss) from operations	48.9	13.8	113.3	(15.6)
Interest Expense, Net	(8)	(8.9)	(27.3)	(27.5)
Debt retirement costs	0	(0.5)	(0.5)	(0.5)
Other Nonoperating Income (Expense)	(1.4)	(2.8)	(4.3)	(7.8)
Total non-operating expense	(9.4)	(12.2)	(32.1)	(35.7)
Income (loss) before income taxes	39.5	1.7	81.2	(51.4)
Income tax provision (benefit)	18.9	(0.3)	29.3	(13.8)
Net income (loss)	$ 20.6	$ 1.9	$ 51.9	$ (37.6)
Net income (loss) per common share:
Basic (in dollars per share)	$ 1.23	$ 0.12	$ 3.09	$ (2.25)
Diluted (in dollars per share)	$ 1.21	$ 0.11	$ 3.04	$ (2.25)
Weighted Average Number of Shares Outstanding, Basic	16,754	16,687	16,777	16,689
Weighted Average Number of Shares Outstanding, Diluted	17,093	16,971	17,085	16,689

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 20.6	$ 1.9	$ 51.9	$ (37.6)
Other comprehensive income:
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	0	(2.8)	0	(2.8)
Defined benefit pension and other postretirement employee benefits:
Amortization of actuarial loss included in net periodic cost, net of tax of $0.4, $0.7, $1.2, and $2.0	1.1	2	3.5	5.8
Other comprehensive income (loss), net of tax	1.1	(0.8)	3.5	3
Comprehensive income	$ 21.8	$ 1.1	$ 55.4	$ (34.6)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax	$ 0.4	$ 0.7	$ 1.2	$ 2
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax	$ 0	$ (1)	$ 0	$ (1)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 20.6	$ 1.9	$ 51.9	$ (37.6)
Depreciation and amortization	26.2	25.9	77.4	79.6
Equity-based compensation expense	4	3.8	9.6	6.9
Deferred taxes	(1.6)	2.4	(5.8)	(19.4)
Defined benefit pension and other postretirement employee benefits	0.7	2.1	2.2	5.3
Amortization of deferred debt costs and debt retirement	0.5	1	1.8	1.9
Loss on sale or impairment associated with assets	1.2	0	5.8	37.1
(Increase) decrease in accounts receivable	4.2	(12.9)	(17.6)	(0.1)
Increase in inventory	(39.2)	(3.5)	(49.1)	(28.3)
Decrease in other current assets	1.4	0.9	5.6	5.3
Increase (Decrease) in Accounts Payable and Accrued Liabilities	(4.4)	(4.8)	50	13.8
Other, net	(0.3)	(0.5)	1.1	0
Net cash flows provided by operating activities	13.3	16.3	132.8	64.4
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment, net	(6.7)	(8.9)	(19.9)	(29.9)
Net cash flows used in investing activities	(6.7)	(8.9)	(19.9)	(29.9)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of long-term debt	(25.3)	(40.5)	(80.8)	(41.3)
Payment, Tax Withholding, Share-based Payment Arrangement	0	0	(2.5)	(1.7)
Payments for Repurchase of Common Stock	1	0	4.9	0
Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised	0.7	0	0.7	0.5
Net cash flows used in financing activities	(25.7)	(40.5)	(87.6)	(42.5)
Increase (decrease) in cash, cash equivalents and restricted cash	(19.1)	(33.1)	25.3	(8.1)
Cash, cash equivalents and restricted cash at beginning of period	70.6	62	26.2	36.9
Cash, cash equivalents and restricted cash at end of period	51.5	28.9	51.5	28.9
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest, net of amounts capitalized	15.4	15.9	32.3	34.6
Cash paid (received) for income taxes	12.9	1	25.4	(8.3)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH
Cash and cash equivalents	50.8	27.8	50.8	27.8
Restricted cash included in other current assets and other assets, net	0.7	1.1	0.7	1.1
Total cash, cash equivalents and restricted cash	$ 51.5	$ 28.9	$ 51.5	$ 28.9

Consolidated Statements of Stoc

Consolidated Statements of Stockholder's Equity Consolidated Statements of Stockholder's Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2020		16,572
Beginning balance at Dec. 31, 2020	$ 521.1	$ 0	$ 16.6	$ 558.8	$ (54.3)
Net income	12.1			12.1
Stock-based compensation expense	2		2
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		105
Stock-based compensation expense	(1.1)		(1.1)
Pension and other postretirement employee benefit plans, net of tax	1.9				1.9
Ending balance (in shares) at Mar. 31, 2021		16,678
Ending balance at Mar. 31, 2021	536.1	$ 0	17.6	570.9	(52.4)
Beginning balance (in shares) at Dec. 31, 2020		16,572
Beginning balance at Dec. 31, 2020	521.1	$ 0	16.6	558.8	(54.3)
Net income	(37.6)
Ending balance (in shares) at Sep. 30, 2021		16,687
Ending balance at Sep. 30, 2021	491.6	$ 0	21.7	521.2	(51.3)
Beginning balance (in shares) at Mar. 31, 2021		16,678
Beginning balance at Mar. 31, 2021	536.1	$ 0	17.6	570.9	(52.4)
Net income	(51.6)			(51.6)
Stock-based compensation expense	1.9		1.9
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		7
Stock-based compensation expense	(0.1)		(0.1)
Pension and other postretirement employee benefit plans, net of tax	1.9				1.9
Ending balance (in shares) at Jun. 30, 2021		16,685
Ending balance at Jun. 30, 2021	488.1	$ 0	19.3	519.2	(50.5)
Net income	1.9			1.9
Stock-based compensation expense	2.4		2.4
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		1
Pension and other postretirement employee benefit plans, net of tax	(0.8)				(0.8)
Ending balance (in shares) at Sep. 30, 2021		16,687
Ending balance at Sep. 30, 2021	491.6	$ 0	21.7	521.2	(51.3)
Beginning balance (in shares) at Dec. 31, 2021		16,692
Beginning balance at Dec. 31, 2021	511.7	$ 0	23.6	530.7	(42.6)
Net income	16.6			16.6
Stock-based compensation expense	2		2
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		119
Stock-based compensation expense	(1.5)		(1.5)
Pension and other postretirement employee benefit plans, net of tax	1.1				1.1
Ending balance (in shares) at Mar. 31, 2022		16,811
Ending balance at Mar. 31, 2022	530	$ 0	24.1	547.3	(41.4)
Beginning balance (in shares) at Dec. 31, 2021		16,692
Beginning balance at Dec. 31, 2021	511.7	$ 0	23.6	530.7	(42.6)
Net income	51.9
Ending balance (in shares) at Sep. 30, 2022		16,762
Ending balance at Sep. 30, 2022	569.2	$ 0	25.7	582.7	(39.1)
Beginning balance (in shares) at Mar. 31, 2022		16,811
Beginning balance at Mar. 31, 2022	530	$ 0	24.1	547.3	(41.4)
Net income	14.7			14.7
Stock-based compensation expense	3.8		3.8
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		78
Stock-based compensation expense	(1)		(1)
Pension and other postretirement employee benefit plans, net of tax	$ 1.1				1.1
Stock Repurchased and Retired During Period, Shares	(119)
Stock Repurchased and Retired During Period, Value	$ (3.9)		(3.9)
Ending balance (in shares) at Jun. 30, 2022		16,770
Ending balance at Jun. 30, 2022	544.7	$ 0	23	562	(40.3)
Net income	20.6			20.6
Stock-based compensation expense	3		3
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture		23
Stock-based compensation expense	0.7		0.7
Pension and other postretirement employee benefit plans, net of tax	$ 1.1				1.1
Stock Repurchased and Retired During Period, Shares	(31)
Stock Repurchased and Retired During Period, Value	$ (1)		(1)
Ending balance (in shares) at Sep. 30, 2022		16,762
Ending balance at Sep. 30, 2022	$ 569.2	$ 0	$ 25.7	$ 582.7	$ (39.1)

Consolidated Statements of St_2

Consolidated Statements of Stockholder's Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent	$ 0.4	$ 0.4	$ 0.4	$ (0.3)	$ 0.7	$ 0.7

Basis of Presentation

Basis of Presentation	9 Months Ended
Basis of Presentation	Sep. 30, 2022
Accounting Policies [Abstract]
Nature of Operations and Basis of Presentation	Basis of PresentationThe accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, in the opinion of management, include all adjustments (consisting of normal recurring adjustments) necessary to present fairly, in all material respects, the consolidated financial position, results of operations, stockholders' equity and cash flows for us and our subsidiaries for the interim periods presented. Results of operations for interim periods are not necessarily indicative of results to be expected for an entire year. These consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021. Certain amounts have been reclassified from the prior year presentation for consistency. All dollar amounts are shown in millions, except per share.

Recently Adopted and New Accoun

Recently Adopted and New Accounting Standards New Accounting Pronouncements (Notes)	9 Months Ended
	Sep. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	In November 2021, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2021-10, Disclosures by Business Entities About Government Assistance (Topic 832), which requires disclosures about certain types of government assistance including the nature of the assistance, related accounting policies, and the effect on an entity's financial statements. The new standard is effective for annual periods beginning after December 15, 2021 with prospective or retrospective adoption permitted. This ASU was adopted prospectively as of January 1, 2022 and did not have a material impact on our consolidated financial statements. In September 2022, the FASB issued ASU No. 2022-04, Liabilities—Supplier Finance Programs (Subtopic 405-50) . This standard requires disclosure of the key terms of outstanding supplier finance programs and a roll forward of the related obligations. The new standard does not affect the recognition, measurement or financial statement presentation of supplier finance program obligations. The ASU becomes effective January 1, 2023, except for the roll forward requirement, which becomes effective January 1, 2024. Upon adoption, we may be required to include additional disclosures to the extent we have material supplier finance program obligations.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Carrying amounts reported on the balance sheet for cash and cash equivalents, restricted cash, accounts receivable and accounts payable approximate fair value due to the short-term maturity of these instruments. During the nine months ended September 30, 2022, we repurchased $30.0 million of our 2014 Notes at slightly below par resulting in an immaterial gain within our debt retirement costs. The fair value of our debt is included in the following table: September 30, 2022 December 31, 2021 Term loan maturing 2026, variable interest rate $ — $ 49.8 2014 Notes, maturing 2025, fixed interest rate 265.3 324.6 2020 Notes, maturing 2028, fixed interest rate 237.9 278.9 $ 503.2 $ 653.3

Receivables, net (Notes)

Receivables, net (Notes)	9 Months Ended
Receivables, net (Notes)	Sep. 30, 2022
Receivables, Net, Current [Abstract]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Receivables Receivables consist of: September 30, 2022 December 31, 2021 Trade accounts receivable $ 172.1 $ 154.1 Allowance for current expected credit losses (1.4) (1.4) Unbilled receivables 6.3 7.2 Taxes receivable 1.4 6.1 Other 2.0 1.4 $ 180.4 $ 167.4

Inventories

Inventories	9 Months Ended
Inventories	Sep. 30, 2022
Inventory Disclosure [Abstract]
Inventories	Inventories Our inventories are stated at the lower of net realizable value or current cost using the average cost method and consist of: September 30, 2022 December 31, 2021 Logs, chips and sawdust $ 18.2 $ 13.7 Pulp 23.1 15.9 Paperboard and tissue products 175.2 148.0 Materials and supplies 110.4 100.1 $ 326.8 $ 277.7

Payables and Accruals

Payables and Accruals	9 Months Ended
Payables and Accruals	Sep. 30, 2022
Payables and Accruals [Abstract]
Accounts Payable and Accrued Liabilities Disclosure	Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities consist of: September 30, 2022 December 31, 2021 Trade payables $ 189.0 $ 156.2 Accrued compensation 43.5 29.3 Operating lease liabilities 13.8 16.1 Accrued interest 4.3 12.0 Accrued taxes other than income 13.4 10.9 Income taxes payable 6.4 0.6 Other accrued liabilities 23.8 27.3 $ 294.1 $ 252.5 Included in accounts payable and accrued liabilities are $7.3 million and $11.0 million related to capital expenditures that had not yet been paid as of September 30, 2022 and December 31, 2021.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Taxes	Income Taxes For interim periods, accounting standards require that income tax expense be determined by applying the estimated annual effective income tax rate to year-to-date results, unless this method does not result in a reliable estimate of year-to-date income tax expense. Each period, the income tax accrual is adjusted to the latest estimate and the difference from the previously accrued year-to-date balance is adjusted to the current quarter. For the nine months ended September 30, 2022, our income tax provision was $29.3 million as compared to a benefit of $13.8 million in the same period in 2021. Our effective tax rate for the nine months ended September 30, 2022 was 36.1%, which varied from the U.S. federal statutory tax rate of 21.0% primarily due to adjustments in tax positions under audit related to the disallowance of a previously taken federal tax credits based upon interpretation of the law, the effects of state taxes, and nondeductible compensation. Our effective tax rate for the nine months ended September 30, 2021 was 26.8%, which varied from the U.S. federal statutory tax rate of 21.0% primarily due to the effects of state taxes and nondeductible compensation.

Other Operating Charges, net (N

Other Operating Charges, net (Notes)	9 Months Ended
Other Operating Charges, net (Notes)	Sep. 30, 2022
Other Income and Expenses [Abstract]
Other Operating Income and Expense	Other Operating Charges The major components of “Other operating charges, net” in the Consolidated Statements of Operations for the quarter and nine months ended September 30, 2022 and 2021 are reflected in the table below and described in the paragraphs following the table. These items are considered outside of our core operations. Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Reorganization and other expenses $ — $ 3.4 $ 1.6 $ 7.3 Costs associated with mill closure — 5.4 0.4 47.1 Impairment of equipment 1.2 — 5.8 — Directors' equity-based compensation expense 1.0 1.4 0.7 0.6 $ 2.2 $ 10.2 $ 8.5 $ 55.1 2022 During the third quarter of 2022, we recorded $2.2 million of expenses in "Other operating charges, net." The components of the expense include: • loss of $1.2 million associated with the impairment of equipment no longer being used; and • expense of $1.0 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. During the second quarter of 2022, we recorded $5.7 million of expenses in "Other operating charges, net." The components of the expense include: • loss of $4.6 million associated with the impairment of equipment previously located at a closed facility which will not be re-installed; and • expense of $1.1 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. During the first quarter of 2022, we recorded $0.5 million of expenses in "Other operating charges, net." The components of the expense include: • expense of $1.5 million related to reorganization and other expenses including consulting fees associated with our efforts to achieve long-term performance improvements; • expense of $0.4 million associated with mill closure costs; and • reversal of expense of $1.4 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. 2021 During the third quarter of 2021, we recorded $10.2 million of expenses in "Other operating charges, net." The components of the expense include: • expense of $5.4 million associated with mill closure related to severance and other related closure costs; • expense of $3.4 million related to reorganization and other expenses including consulting fees associated with our efforts to achieve long-term performance improvements, and • expense of $1.4 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. During the second quarter of 2021, we recorded $44.5 million of expenses in "Other operating charges, net." The components of the expense include: • expense of $41.7 million associated with mill closure including $36.9 million associated with the impairment of property, plant and equipment and certain inventory and an expense of $4.9 million associated with severance and other related closure costs; • expense of $4.0 million related to reorganization and other expenses including severance and consulting fees associated with our efforts to achieve long-term performance improvements; and • reversal of expense of $1.1 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price. During the first quarter of 2021, we recorded $0.4 million of expenses in "Other operating charges, net." The components of the expense include: • expense of $0.4 million relating to directors' equity based compensation which is remeasured each period based upon changes in our stock price.

Non-operating Income (Expense)

Non-operating Income (Expense) (Notes)	9 Months Ended
Non-operating Income (Expense) (Notes)	Sep. 30, 2022
Nonoperating Income (Expense) [Abstract]
Other Nonoperating Income and Expense [Text Block]	Non-Operating ExpenseThe components of “Non-operating expense” in the Consolidated Statements of Operations for the quarter and nine months ended September 30, 2022 and 2021 are reflected in the table below: Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Interest expense $ (8.0) $ (8.4) $ (26.6) $ (26.7) Amortization of debt issuance costs (0.4) (0.5) (1.2) (1.4) Interest income 0.3 — 0.4 0.6 Interest expense, net (8.0) (8.9) (27.3) (27.5) Debt retirement costs — (0.5) (0.5) (0.5) Non-operating pension and other postretirement employee benefits expense (1.4) (2.8) (4.3) (7.8) Total non-operating expense $ (9.4) $ (12.2) $ (32.1) $ (35.7)

Retirement Plans and Postretire

Retirement Plans and Postretirement Benefits	3 Months Ended
Retirement Plans and Postretirement Benefits	Sep. 30, 2022
Postemployment Benefits [Abstract]
Pension and Other Postretirement Employee Benefit Plans	Retirement Plans and Postretirement Benefits The following table details the components of net periodic cost of our company-sponsored pension and other postretirement employee benefit plans for the periods presented: Quarter Ended September 30, Nine Months Ended September 30, Pension Benefit Plans 2022 2021 2022 2021 Service cost $ 0.5 $ 0.4 $ 1.6 $ 1.4 Interest cost 2.2 2.1 6.6 6.3 Expected return on plan assets (2.8) (2.6) (8.5) (7.9) Amortization of actuarial loss 1.5 2.5 4.6 7.7 Net periodic cost $ 1.5 $ 2.4 $ 4.4 $ 7.4 Quarter Ended September 30, Nine Months Ended September 30, Other Postretirement Employee Benefit Plans 2022 2021 2022 2021 Service cost $ 0.1 $ 0.2 $ 0.3 $ 0.3 Interest cost 0.5 0.6 1.5 1.5 Amortization of actuarial loss — 0.2 — 0.2 Net periodic cost $ 0.6 $ 1.0 $ 1.8 $ 2.0

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss (Notes)	9 Months Ended
Accumulated Other Comprehensive Loss (Notes)	Sep. 30, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated Other Comprehensive Loss Accumulated other comprehensive loss, net of tax, is comprised of the following: Pension Plan Adjustments Other Post Retirement Employee Benefit Plan Adjustments Total Balance at December 31, 2020 $ (54.5) $ 0.2 $ (54.3) Other comprehensive income (loss) before reclassifications — (2.8) (2.8) Amounts reclassified from accumulated other comprehensive loss 5.7 0.2 5.8 Balance at September 30, 2021 $ (48.9) $ (2.4) $ (51.3) Balance at December 31, 2021 $ (42.8) $ 0.3 $ (42.6) Amounts reclassified from accumulated other comprehensive loss 3.5 — 3.5 Balance at September 30, 2022 $ (39.4) $ 0.3 $ (39.1)

Stockholders' Equity

Stockholders' Equity	9 Months Ended
Stockholders' Equity	Sep. 30, 2022
Share-based Payment Arrangement [Abstract]
Equity-Based Compensation	Stockholders' Equity Common Stock Plans We have stock-based compensation plans under which restricted stock awards and stock options are outstanding or granted subject to time or performance vesting requirements. At September 30, 2022, approximately 0.9 million shares were available for future issuance under our current plan. Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Total stock-based compensation expense $ 4.0 $ 3.8 $ 9.6 $ 6.9 Income tax benefit related to stock-based compensation $ 1.0 $ 1.0 $ 2.4 $ 1.8 Impact on cash flow due to taxes paid related to net share settlement of equity awards $ — $ — $ 2.5 $ 1.7 At September 30, 2022, there was $16.4 million of total unrecognized compensation cost related to outstanding restricted stock unit awards. During the nine months ended September 30, 2022, we granted 220,518 restricted stock units (time vesting) at an average grant date fair value of $29.52 per share and 103,067 restricted stock units (performance vesting) at an average grant date fair value of $30.55 per share.

Earnings per Common Share

Earnings per Common Share	9 Months Ended
Earnings per Common Share	Sep. 30, 2022
Earnings Per Share [Abstract]
Earnings per Common Share	Earnings per Share Basic income per share is based on the weighted-average number of shares of common stock outstanding. Diluted income per share is based upon the weighted-average number of shares of common stock outstanding plus all potentially dilutive securities that were assumed to be converted into common shares at the beginning of the period under the treasury stock method. This method requires the effect of potentially dilutive common stock equivalents be excluded from the calculation of diluted earnings per share for the periods in which net losses are reported because the effect is anti-dilutive. Quarter Ended September 30, Nine Months Ended September 30, (In thousands) 2022 2021 2022 2021 Basic weighted-average common shares outstanding 16,754 16,687 16,777 16,689 Incremental shares due to: Stock-based awards 197 186 181 — Performance shares 137 98 127 — Stock options 6 — — — Diluted weighted-average common shares outstanding 17,093 16,971 17,085 16,689

Segment Information

Segment Information	3 Months Ended
Segment Information	Sep. 30, 2022
Segment Reporting [Abstract]
Segment Information	Segment Information We operate in two segments: Pulp and Paperboard and Consumer Products. Our business units have been aggregated into these two segments based upon the similarity of economic characteristics, customers and distribution methods. Our results of operations are summarized below for each of these segments separately. Segment information was prepared in accordance with the same accounting principles as those described in Note 1 of the Notes to the Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2021. Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Segment net sales: Pulp and Paperboard $ 300.8 $ 237.5 $ 862.8 $ 684.6 Consumer Products 241.0 214.2 696.1 603.2 Eliminations (3.0) (1.2) (5.6) (5.0) Net sales $ 538.8 $ 450.5 $ 1,553.3 $ 1,282.8 Operating income (loss): Pulp and Paperboard $ 63.7 $ 34.6 $ 165.9 $ 72.6 Consumer Products 5.2 3.7 9.6 11.5 Corporate and eliminations (17.8) (14.3) (53.8) (44.8) Other operating charges, net (2.2) (10.2) (8.5) (55.1) Income (loss) from operations $ 48.9 $ 13.8 $ 113.3 $ (15.6) Net sales, classified by major products were as follows: Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Major products: Paperboard $ 292.7 $ 224.1 $ 834.6 $ 648.8 Retail tissue 237.1 208.3 682.3 572.9 Away-from-home tissue 1 — 1.9 — 16.3 Pulp 4.6 8.4 18.5 23.9 Other 7.3 8.9 23.5 26.1 Eliminations (3.0) (1.2) (5.6) (5.0) Total net sales $ 538.8 $ 450.5 $ 1,553.3 $ 1,282.8 1 In the third quarter of 2021, we exited our away-from-home business with the shutdown of our Neenah, Wisconsin site.

Fair Value Measurements - (Tabl

Fair Value Measurements - (Tables)	9 Months Ended
Fair Value Measurements - (Tables)	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value Option, Disclosures	The fair value of our debt is included in the following table: September 30, 2022 December 31, 2021 Term loan maturing 2026, variable interest rate $ — $ 49.8 2014 Notes, maturing 2025, fixed interest rate 265.3 324.6 2020 Notes, maturing 2028, fixed interest rate 237.9 278.9 $ 503.2 $ 653.3

Receivables, net (Tables)

Receivables, net (Tables)	9 Months Ended
Receivables, net (Tables)	Sep. 30, 2022
Receivables, Net, Current [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	September 30, 2022 December 31, 2021 Trade accounts receivable $ 172.1 $ 154.1 Allowance for current expected credit losses (1.4) (1.4) Unbilled receivables 6.3 7.2 Taxes receivable 1.4 6.1 Other 2.0 1.4 $ 180.4 $ 167.4

Inventories - (Tables)

Inventories - (Tables)	9 Months Ended
Inventories - (Tables)	Sep. 30, 2022
Inventory Disclosure [Abstract]
Inventories	Our inventories are stated at the lower of net realizable value or current cost using the average cost method and consist of: September 30, 2022 December 31, 2021 Logs, chips and sawdust $ 18.2 $ 13.7 Pulp 23.1 15.9 Paperboard and tissue products 175.2 148.0 Materials and supplies 110.4 100.1 $ 326.8 $ 277.7

Payables and Accruals (Tables)

Payables and Accruals (Tables)	9 Months Ended
Payables and Accruals (Tables)	Sep. 30, 2022
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	Accounts payable and accrued liabilities consist of: September 30, 2022 December 31, 2021 Trade payables $ 189.0 $ 156.2 Accrued compensation 43.5 29.3 Operating lease liabilities 13.8 16.1 Accrued interest 4.3 12.0 Accrued taxes other than income 13.4 10.9 Income taxes payable 6.4 0.6 Other accrued liabilities 23.8 27.3 $ 294.1 $ 252.5

Other Operating Charges, net (T

Other Operating Charges, net (Tables)	9 Months Ended
Other Operating Charges, net (Tables)	Sep. 30, 2022
Other Income and Expenses [Abstract]
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]	Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Reorganization and other expenses $ — $ 3.4 $ 1.6 $ 7.3 Costs associated with mill closure — 5.4 0.4 47.1 Impairment of equipment 1.2 — 5.8 — Directors' equity-based compensation expense 1.0 1.4 0.7 0.6 $ 2.2 $ 10.2 $ 8.5 $ 55.1

Non-operating Income (Expense_2

Non-operating Income (Expense) (Tables)	9 Months Ended
Non-operating Income (Expense) (Tables)	Sep. 30, 2022
Nonoperating Income (Expense) [Abstract]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Interest expense $ (8.0) $ (8.4) $ (26.6) $ (26.7) Amortization of debt issuance costs (0.4) (0.5) (1.2) (1.4) Interest income 0.3 — 0.4 0.6 Interest expense, net (8.0) (8.9) (27.3) (27.5) Debt retirement costs — (0.5) (0.5) (0.5) Non-operating pension and other postretirement employee benefits expense (1.4) (2.8) (4.3) (7.8) Total non-operating expense $ (9.4) $ (12.2) $ (32.1) $ (35.7)

Retirement Plans and Postreti_2

Retirement Plans and Postretirement Benefits - (Tables)	9 Months Ended
Retirement Plans and Postretirement Benefits - (Tables)	Sep. 30, 2022
Retirement Benefits [Abstract]
Components of Net Periodic Cost of Pension and Other Postretirement Employee Benefit Plans	The following table details the components of net periodic cost of our company-sponsored pension and other postretirement employee benefit plans for the periods presented: Quarter Ended September 30, Nine Months Ended September 30, Pension Benefit Plans 2022 2021 2022 2021 Service cost $ 0.5 $ 0.4 $ 1.6 $ 1.4 Interest cost 2.2 2.1 6.6 6.3 Expected return on plan assets (2.8) (2.6) (8.5) (7.9) Amortization of actuarial loss 1.5 2.5 4.6 7.7 Net periodic cost $ 1.5 $ 2.4 $ 4.4 $ 7.4 Quarter Ended September 30, Nine Months Ended September 30, Other Postretirement Employee Benefit Plans 2022 2021 2022 2021 Service cost $ 0.1 $ 0.2 $ 0.3 $ 0.3 Interest cost 0.5 0.6 1.5 1.5 Amortization of actuarial loss — 0.2 — 0.2 Net periodic cost $ 0.6 $ 1.0 $ 1.8 $ 2.0

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
Accumulated Other Comprehensive Loss (Tables)	Sep. 30, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Accumulated other comprehensive loss, net of tax, is comprised of the following: Pension Plan Adjustments Other Post Retirement Employee Benefit Plan Adjustments Total Balance at December 31, 2020 $ (54.5) $ 0.2 $ (54.3) Other comprehensive income (loss) before reclassifications — (2.8) (2.8) Amounts reclassified from accumulated other comprehensive loss 5.7 0.2 5.8 Balance at September 30, 2021 $ (48.9) $ (2.4) $ (51.3) Balance at December 31, 2021 $ (42.8) $ 0.3 $ (42.6) Amounts reclassified from accumulated other comprehensive loss 3.5 — 3.5 Balance at September 30, 2022 $ (39.4) $ 0.3 $ (39.1)

Stockholders' Equity - (Tables)

Stockholders' Equity - (Tables)	9 Months Ended
Stockholders' Equity - (Tables)	Sep. 30, 2022
Share-based Payment Arrangement [Abstract]
Employee Equity-Based Compensation Expense	Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Total stock-based compensation expense $ 4.0 $ 3.8 $ 9.6 $ 6.9 Income tax benefit related to stock-based compensation $ 1.0 $ 1.0 $ 2.4 $ 1.8 Impact on cash flow due to taxes paid related to net share settlement of equity awards $ — $ — $ 2.5 $ 1.7

Earnings per Common Share - (Ta

Earnings per Common Share - (Tables)	9 Months Ended
Earnings per Common Share - (Tables)	Sep. 30, 2022
Earnings Per Share [Abstract]
Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings per Share	Quarter Ended September 30, Nine Months Ended September 30, (In thousands) 2022 2021 2022 2021 Basic weighted-average common shares outstanding 16,754 16,687 16,777 16,689 Incremental shares due to: Stock-based awards 197 186 181 — Performance shares 137 98 127 — Stock options 6 — — — Diluted weighted-average common shares outstanding 17,093 16,971 17,085 16,689

Segment Information - (Tables)

Segment Information - (Tables)	9 Months Ended
Segment Information - (Tables)	Sep. 30, 2022
Segment Reporting [Abstract]
Reportable Segments Information	Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Segment net sales: Pulp and Paperboard $ 300.8 $ 237.5 $ 862.8 $ 684.6 Consumer Products 241.0 214.2 696.1 603.2 Eliminations (3.0) (1.2) (5.6) (5.0) Net sales $ 538.8 $ 450.5 $ 1,553.3 $ 1,282.8 Operating income (loss): Pulp and Paperboard $ 63.7 $ 34.6 $ 165.9 $ 72.6 Consumer Products 5.2 3.7 9.6 11.5 Corporate and eliminations (17.8) (14.3) (53.8) (44.8) Other operating charges, net (2.2) (10.2) (8.5) (55.1) Income (loss) from operations $ 48.9 $ 13.8 $ 113.3 $ (15.6)
Disaggregation of Revenue [Table Text Block]	Net sales, classified by major products were as follows: Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Major products: Paperboard $ 292.7 $ 224.1 $ 834.6 $ 648.8 Retail tissue 237.1 208.3 682.3 572.9 Away-from-home tissue 1 — 1.9 — 16.3 Pulp 4.6 8.4 18.5 23.9 Other 7.3 8.9 23.5 26.1 Eliminations (3.0) (1.2) (5.6) (5.0) Total net sales $ 538.8 $ 450.5 $ 1,553.3 $ 1,282.8

Fair Value Measurements (Detail

Fair Value Measurements (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term Debt, Fair Value	$ 503.2	$ 653.3
Debt Instrument, Repurchase Amount	30
Term Loan [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term Debt, Fair Value	0	49.8
Senior Note Due 2025 [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term Debt, Fair Value	265.3	324.6
Senior Note Due 2028 [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term Debt, Fair Value	$ 237.9	$ 278.9

Receivables, net (Details)

Receivables, net (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Receivables, Net, Current [Abstract]
Trade accounts receivable	$ 172.1	$ 154.1
Accounts Receivable, Allowance for Credit Loss, Current	(1.4)	(1.4)
Unbilled Receivables, Current	6.3	7.2
Income Taxes Receivable, Current	1.4	6.1
Other Receivables, Net, Current	2	1.4
Receivables, Net	$ 180.4	$ 167.4

Inventories - Inventories (Deta

Inventories - Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Paperboard and tissue products	$ 175.2	$ 148
Materials and supplies	110.4	100.1
Inventories	326.8	277.7
Inventory [Line Items]
Paperboard and tissue products	175.2	148
Materials and supplies	110.4	100.1
Inventories	326.8	277.7
Raw Materials
Inventory Disclosure [Abstract]
Inventory, Raw Materials, Gross	18.2	13.7
Inventory [Line Items]
Inventory, Raw Materials, Gross	18.2	13.7
Inventory Pulp
Inventory Disclosure [Abstract]
Inventory, Raw Materials, Gross	23.1	15.9
Inventory [Line Items]
Inventory, Raw Materials, Gross	$ 23.1	$ 15.9

Payables and Accruals (Details)

Payables and Accruals (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Payables and Accruals (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Trade payables	$ 189	$ 156.2
Accrued compensation	43.5	29.3
Operating Lease, Liability, Current	13.8	16.1
Interest Payable, Current	4.3	12
Accrual for Taxes Other than Income Taxes, Current	13.4	10.9
Accrued Income Taxes	6.4	0.6
Other Accrued Liabilities, Current	23.8	27.3
Accounts Payable and Accrued Liabilities	294.1	252.5
Capital Expenditures Incurred but Not yet Paid	$ 7.3	$ 11

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Income Taxes - Narrative (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 18.9	$ (0.3)	$ 29.3	$ (13.8)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21%
Effective Income Tax Rate Reconciliation, Percent			36.10%	26.80%

Other Operating Charges, net (D

Other Operating Charges, net (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Reorganization Items	$ 0		$ 1.5	$ 3.4	$ 4		$ 1.6	$ 7.3
Other Cost and Expense, Operating	2.2	$ 5.7	0.5	10.2	44.5	$ 0.4	8.5	55.1
Operating Expense
Asset Impairment Charges	1.2	4.6		0			5.8	0
Operating Expense \| Mill Closure Costs
Other Expenses	0		0.4	5.4	41.7		0.4	47.1
Asset Impairment Charges					36.9
Operating Expense \| Employee Severance
Other Expenses				5.4	4.9
Director [Member]
Share based compensation expense	$ 1	$ 1.1	$ (1.4)	$ 1.4	$ (1.1)	$ 0.4	$ 0.7	$ 0.6

Non-operating Income (Expense_3

Non-operating Income (Expense) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Nonoperating Income (Expense) [Abstract]
Interest Expense	$ (8)	$ (8.4)	$ (26.6)	$ (26.7)
Amortization of Debt Issuance Costs	(0.4)	(0.5)	(1.2)	(1.4)
Interest Income, Other	0.3	0	0.4	0.6
Interest Expense, Net	(8)	(8.9)	(27.3)	(27.5)
Write off of Deferred Debt Issuance Cost	0	(0.5)	(0.5)	(0.5)
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	(1.4)	(2.8)	(4.3)	(7.8)
Nonoperating Income (Expense)	$ (9.4)	$ (12.2)	$ (32.1)	$ (35.7)

Retirement Plans and Postreti_3

Retirement Plans and Postretirement Benefits - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 0.5	$ 0.4	$ 1.6	$ 1.4
Interest cost	2.2	2.1	6.6	6.3
Expected return on plan assets	(2.8)	(2.6)	(8.5)	(7.9)
Defined Benefit Plan, Amortization of Gain (Loss)	1.5	2.5	4.6	7.7
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	1.5	2.4	4.4	7.4
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	0.1	0.2	0.3	0.3
Interest cost	0.5	0.6	1.5	1.5
Defined Benefit Plan, Amortization of Gain (Loss)	0	0.2	0	0.2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	0.6	1	1.8	2
Cost of Sales [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	0.5	0.6	1.6	1.5
Selling, General and Administrative Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	$ 0.1	$ 0.1	$ 0.3	$ 0.2

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (39.1)	$ (51.3)	$ (42.6)	$ (54.3)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	3.5	(2.8)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		5.8
Pension Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(39.4)	(48.9)	(42.8)	(54.5)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	3.5	0
Pension Plan [Member] \| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		5.7
Other Postretirement Benefits Plan [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	0.3	(2.4)	$ 0.3	$ 0.2
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	$ 0	(2.8)
Other Postretirement Benefits Plan [Member] \| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		$ 0.2

Stockholders' Equity - (Detail)

Stockholders' Equity - (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	900,000		900,000
Equity-based compensation expense	$ 4	$ 3.8	$ 9.6	$ 6.9
Share-based Payment Arrangement, Expense, Tax Benefit	1	1	2.4	1.8
Payment, Tax Withholding, Share-based Payment Arrangement	0	$ 0	2.5	$ 1.7
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 16.4		$ 16.4
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based awards granted			220,518
Grant-date fair value of awards per share			$ 29.52
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based awards granted			103,067
Grant-date fair value of awards per share			$ 30.55

Earnings per Common Share - Rec

Earnings per Common Share - Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings Per Share (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Number of Shares Outstanding, Basic	16,754	16,687	16,777	16,689
Weighted Average Number of Shares Outstanding, Diluted	17,093	16,971	17,085	16,689
Anti-dilutive shares excluded from calculation	200	300	300	600
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	197	186	181	0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	137	98	127	0
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	6	0	0	0

Segment Information (Detail)

Segment Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Segment Information (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 538.8	$ 450.5	$ 1,553.3	$ 1,282.8
Income from operations	48.9	13.8	113.3	(15.6)
Other operating charges, net	(2.2)	(10.2)	(8.5)	(55.1)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net Sales	(3)	(1.2)	(5.6)	(5)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Income from operations	(17.8)	(14.3)	(53.8)	(44.8)
Paperboard [Domain]
Segment Reporting Information [Line Items]
Net Sales	292.7	224.1	834.6	648.8
Retail tissue [Domain]
Segment Reporting Information [Line Items]
Net Sales	237.1	208.3	682.3	572.9
Non-retail tissue [Domain]
Segment Reporting Information [Line Items]
Net Sales	0	1.9	0	16.3
Pulp [Domain]
Segment Reporting Information [Line Items]
Net Sales	4.6	8.4	18.5	23.9
Other [Domain]
Segment Reporting Information [Line Items]
Net Sales	7.3	8.9	23.5	26.1
Pulp And Paperboard [Member]
Segment Reporting Information [Line Items]
Net Sales	300.8	237.5	862.8	684.6
Income from operations	63.7	34.6	165.9	72.6
Consumer Products
Segment Reporting Information [Line Items]
Net Sales	241	214.2	696.1	603.2
Income from operations	$ 5.2	$ 3.7	$ 9.6	$ 11.5