| Document and Entity Information | Nov. 14, 2024 |
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0000820318 |
| Document Type | 8-K/A |
| Document Period End Date | Nov. 14, 2024 |
| Entity Registrant Name | Coherent Corp. |
| Entity Incorporation State Country Code | PA |
| Entity File Number | 001-39375 |
| Entity Tax Identification Number | 25-1214948 |
| Entity Address, Address Line One | 375 Saxonburg Boulevard |
| Entity Address, City or Town | Saxonburg |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 16056 |
| City Area Code | (724) |
| Local Phone Number | 352-4455 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, no par value |
| Trading Symbol | COHR |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Description | This Current Report on Form 8-K/A (this “Amendment”) is being filed as an amendment to the Current Report on Form 8-K filed on November 14, 2024 (the “Original 8-K”) by Coherent Corp. (the “Company”). The Original 8-K was filed, in part, to report the results of the matters submitted to a vote at the Company’s 2024 Annual Meeting of Shareholders held on November 14, 2024 (the “Annual Meeting”). The Original 8-K incorrectly announced the vote tally for the election of Howard H. Xia as a Class One Director to serve until the Company’s 2027 annual meeting of shareholders or until his successor is duly elected and qualified (the “Vote Tally”). The purpose of this Amendment is to disclose the corrected Vote Tally and, to do so, the Company has amended and restated the Vote Tally set forth in Item 5.07(b) of the Original 8-K below. Except for the foregoing, this Amendment does not modify or update any other disclosure contained in the Original 8-K, and this Amendment should be read in conjunction with the Original 8-K. |
