FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Impact of Interest Rate Derivative Instruments (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Derivative | ||||
| Amount of Unrealized Income (Loss), Net of Tax, Recognized in Other Comprehensive Income (Loss) | $ (1.8) | $ 5.3 | $ (6.7) | $ 19.6 |
| Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations | 5.1 | 7.4 | 10.3 | 15.0 |
| Floorplan interest expense | ||||
| Derivative | ||||
| Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations | 4.0 | 5.3 | 8.0 | 10.6 |
| Other interest expense, net | ||||
| Derivative | ||||
| Amount Reclassified from Other Comprehensive Income (Loss) into Statements of Operations | $ 2.7 | $ 4.4 | $ 5.6 | $ 9.0 |