Earnings per Common Share - Calculation of Earnings Per Share (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 28, 2026 |
Mar. 29, 2025 |
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| Earnings Per Share [Abstract] | ||
| Net loss | $ (81,530) | $ (31,952) |
| Net income attributable to redeemable noncontrolling interest | 49 | 18 |
| Net loss attributable to RYAM | (81,579) | (31,970) |
| Redeemable noncontrolling interest adjustment to redemption value | (473) | (408) |
| Net loss attributable to RYAM common stockholders (Basic) | (82,052) | (32,378) |
| Net loss attributable to RYAM common stockholders (Diluted) | $ (82,052) | $ (32,378) |
| Weighted average shares used for determining earnings per share of common stock - basic (in shares) | 67,133,754 | 66,216,983 |
| Weighted average shares used for determining earnings per share of common stock - diluted (in shares) | 67,133,754 | 66,216,983 |
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- References No definition available.
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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of Net Income (Loss) attributable to redeemable noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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