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DEBT - Schedule Of Cash Flow Hedges Related to Derivative Instruments On the Balance Sheet (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Derivatives, Fair Value [Line Items] |  |  |
Unrealized loss resulting from changes in fair value of derivative instruments | $ (7,379) | $ (1,554) |
Designated as Hedging Instrument | Interest rate swaps |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Cash flow hedge derivatives, liabilities | 13,026 |  | $ 5,427
Other accrued liabilities | Designated as Hedging Instrument | Interest rate swaps |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Cash flow hedge derivatives, liabilities | 4,166 |  | 1,824
Other long-term liabilities | Designated as Hedging Instrument | Interest rate swaps |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Cash flow hedge derivatives, liabilities | 8,860 |  | 3,603
Accumulated other comprehensive loss | Designated as Hedging Instrument | Interest rate swaps |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Unrealized loss resulting from changes in fair value of derivative instruments | (13,230) |  | (5,929)
Accumulated other comprehensive loss, interest rate swaps, tax provision | 0 |  | (112)
Accumulated other comprehensive loss | $ (13,230) |  | $ (6,041)

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