FAIR VALUE MEASUREMENTS - Narrative (Details) - Fair Value Measurements on a Recurring Basis - Deferred compensation plan - USD ($) $ in Millions |
Sep. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Deferred compensation plan | $ 94.0 | $ 84.7 |
| 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 | 6.8 | 6.4 |
| Level 1 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Deferred compensation plan | 94.0 | 84.7 |
| Cost basis of investment funds | $ 78.6 | $ 76.3 |