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STOCKHOLDERS’ EQUITY - Share-Based Compensation Cost (Narrative) (Details) - USD ($) $ in Thousands | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 01, 2019 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |
Share-based compensation expense | $ 498 | $ 26,411 | $ 22,862 | $ 2,066
Tax benefit related to share-based compensation expense | 100 |  |  | 500
Weighted average period for recognition |  |  | 2 years 9 months 18 days |
Vest based solely on continued service |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |
Unrecognized compensation cost related to arrangements that will vest based on service conditions |  |  | $ 54,000 |
Vest if certain predetermined performance targets are met |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |
Unrecognized compensation cost related to arrangements that will vest based on service conditions |  |  | 1,600 |
Corporate expenses |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |
Share-based compensation expense | $ 500 | 26,400 | 22,900 | $ 2,100
The Company |  |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |  |
Tax benefit related to share-based compensation expense |  | $ 4,100 | $ 5,700 |

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