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FAIR VALUE MEASUREMENTS - Narrative (Details) - Deferred compensation plan - USD ($) $ in Millions | Mar. 31, 2026 | Dec. 31, 2025 | Mar. 31, 2025
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Deferred compensation plan | $ 95.0 | $ 101.0 | $ 99.2
Cost basis of investment funds | 75.6 | 80.7 | 84.8
Fair Value Measured at Net Asset Value Per Share |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Deferred compensation plan | $ 7.7 | $ 7.7 | $ 6.9

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