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v3.21.1

SUBSEQUENT EVENTS - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended |
--- | --- | --- | ---
Mar. 21, 2021 | Mar. 31, 2021 | Feb. 28, 2021 | Jan. 31, 2021 | Dec. 31, 2020
Subsequent Event [Line Items] |  |  |  |  |
Secured credit facility |  |  |  |  | $ 3,616,293
Secured credit facility, impact of uncertainty |  | $ 107,833 |  |  |
Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Loan maturity date |  | Feb. 28, 2026 |  |  |
Loan agreement term |  | 4 years |  |  |
Loan term of extension option |  | 1 year |  |  |
Subsequent Event | Ambassador Infrastructure, LLC |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Secured credit facility, impact of uncertainty |  | $ 8,250 |  |  |
Loan maturity date |  | Mar. 31, 2025 |  |  |
Loan agreement term |  | 4 years |  |  |
Line of credit fixed interest rate |  | 3.00% |  |  |
Amount paid in conjunction with modification |  | $ 1,110 |  |  |
Restructuring Support Agreement | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Percentage of bank lenders representing outstanding balance of secured credit facility |  | 96.00% |  |  |
Aggregate principal amount of secured credit facility |  | 69.00% |  |  |
Elimination of debt as result of implementation of plan | $ 1,681,900 | $ 1,681,900 |  |  |
Principal amount of unsecured notes | 1,375,000 | 1,375,000 |  |  |
New senior secured notes | 555,000 | 555,000 |  |  |
Cash | 95,000 | 95,000 |  |  |
Convertible secured notes | $ 100,000 | $ 100,000 |  |  |
Percentage of issuance of new common equity to holders of unsecured notes | 89.00% | 89.00% |  |  |
Restructuring Support Agreement | Subsequent Event | Subscription Option |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Cash | $ 100,000 | $ 100,000 |  |  |
Convertible secured notes | $ 50,000 | $ 50,000 |  |  |
Percentage of issuance of new common equity to holders of unsecured notes | 11.00% | 11.00% |  |  |
Restructuring Support Agreement | Subsequent Event | Secured Credit Facility |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Secured credit facility | $ 133,000 | $ 133,000 |  |  |
Restructuring Support Agreement | Subsequent Event | Secured Credit Facility | Subscription Option |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Secured credit facility | 983,700 | 983,700 |  |  |
Restructuring Support Agreement | Subsequent Event | Secured Term Loan | Subscription Option |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Secured credit facility | $ 883,700 | 883,700 |  |  |
U.S Treasury Securities | Subsequent Event |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
U.S. Treasury securities, purchased |  | $ 82,393 | $ 31,999 | $ 21,999 |
Debt instrument, maturity date |  | Jun. 30, 2021 | Mar. 31, 2021 | Feb. 28, 2021 |

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