STOCKHOLDERS' EQUITY - AOCI Components (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Mar. 31, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Accumulated Other Comprehensive Income (Loss) | ||||||
| Total after-tax amount | $ 1,267,593 | $ 1,286,526 | $ 1,295,721 | $ 1,300,426 | $ 1,294,744 | $ 1,314,362 |
| Accumulated Other Comprehensive Income (Loss) | ||||||
| Accumulated Other Comprehensive Income (Loss) | ||||||
| Total pre-tax amount | (1,278) | (591) | ||||
| Total after-tax amount | (949) | $ (614) | (439) | 452 | $ (71) | 272 |
| Unrecognized Net Periodic Benefit Credit | ||||||
| Accumulated Other Comprehensive Income (Loss) | ||||||
| Total pre-tax amount | 3,822 | 4,126 | ||||
| Total after-tax amount | 2,838 | 3,064 | 3,891 | 4,203 | ||
| Foreign Currency Translation | ||||||
| Accumulated Other Comprehensive Income (Loss) | ||||||
| Total pre-tax amount | (5,100) | (4,717) | ||||
| Total after-tax amount | $ (3,787) | $ (3,503) | $ (3,439) | $ (3,931) |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before tax of increase (decrease) in accumulated equity from transactions and other events and circumstances from non-owner sources, attributable to parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners (distributions to owners). No definition available.
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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