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Earnings Per Share (Tables) | 12 Months Ended
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Jun. 30, 2025
Earnings Per Share [Abstract] |
Schedule of Reconciliation of Basic and Diluted Earnings (Loss) Per Share | The following is a reconciliation of the numerators and denominators of the basic and diluted earnings (loss) per share computations for the periods presented ($000, except per share):
Year Ended June 30, |  | 2025 |  | 2024 |  | 2023
Numerator |  |  |  |  |  |
Net earnings (loss) attributable to Coherent Corp. |  | $ | 49,364 |  |  | $ | (156,154) |  |  | $ | (259,458) |
Deduct Series A preferred stock dividends |  | — |  |  | — |  |  | (27,600) |
Deduct Series B dividends and deemed dividends |  | (129,926) |  |  | (123,357) |  |  | (116,612) |
Basic loss available to the common shareholders |  | $ | (80,562) |  |  | $ | (279,511) |  |  | $ | (403,670) |
Diluted loss available to the common shareholders |  | $ | (80,562) |  |  | $ | (279,511) |  |  | $ | (403,670) |
Denominator |  |  |  |  |  |
Diluted weighted average common shares |  | 154,755 |  |  | 151,642 |  |  | 137,578 |
Basic loss per common share |  | $ | (0.52) |  |  | $ | (1.84) |  |  | $ | (2.93) |
Diluted loss per common share |  | $ | (0.52) |  |  | $ | (1.84) |  |  | $ | (2.93) |
Schedule of Potential Shares Excluded from Calculation of Diluted Net Earnings (Loss) Per Share | The following table presents potential shares of common stock excluded from the calculation of diluted net earnings (loss) per share, as their effect would have been antidilutive (in thousands of shares):
Year Ended June 30, |  | 2025 |  | 2024 |  | 2023
Series A Mandatory Convertible Preferred Stock |  | — |  |  | — |  |  | 10,423 |
Series B Convertible Preferred Stock |  | 29,103 |  |  | 27,691 |  |  | 26,349 |
Common stock equivalents |  | 4,548 |  |  | 2,940 |  |  | 2,271 |
Total anti-dilutive shares |  | 33,651 |  |  | 30,631 |  |  | 39,043 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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