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v3.21.1

SUBSEQUENT EVENTS (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 23, 2021 | Apr. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020
Term Loan |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Face Value |  |  | $ 651,580,000 |
Carrying value |  |  | 642,850,000 |
First Lien Credit Agreement, Sixth Amendment | Term Loan | Eurodollar |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Basis spread on variable rate |  |  |  | 1.00%
First Lien Term Loan | Term Loan |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Face Value |  |  | 601,330,000 |
Carrying value |  |  | 592,600,000 |
First Lien Term Loan | Term Loan | Barclays |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Periodic payment, principal |  |  | $ 9,700,000 |
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Interest Payable | $ 102,000,000.0 |  |  |
Payments for asset acquisitions |  | $ 5,000,000.0 |  |
Subsequent Event | Term loan |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Face Value | $ 725,000,000.0 |  |  |
Subsequent Event | Term loan | Eurodollar |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Basis spread on variable rate | 0.75% |  |  |
Subsequent Event | Line of Credit | Revolving Credit Facility |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Maximum borrowing capacity | $ 195,000,000.0 |  |  |
Subsequent Event | Term Loan |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Carrying value | 611,000,000.0 |  |  |
Periodic payment, principal | $ 1,800,000 |  |  |

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