SHARE-BASED COMPENSATION (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Share-Based Compensation | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost | $ 28,600,000 | |||||
| Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards | $ 19,600,000 | $ 9,100,000 | $ 6,700,000 | $ 5.5 | $ 28.0 | $ 18.4 |
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 5,000,000 | |||||
| Restricted Stock Units | ||||||
| Share-Based Compensation | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 1,000,000 | |||||