THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES - Impairment of assets (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES | |||
| Impairment of long-lived assets | $ 106.9 | $ 133.1 | $ 77.2 |
| Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag | false | false | false |
| Impairment of other assets recorded in investment expense (income) | $ 1.0 | ||
| Total impairment loss | $ 107.9 | $ 133.1 | $ 77.2 |