FAIR VALUE MEASUREMENTS - Interest Swap Derivatives (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Interest Rate Swaps Measured at Fair Value | |||
| Gains on interest rate swaps reclassified into interest expense from accumulated other comprehensive income | $ (3,337) | $ (1,817) | $ 2,308 |
| Unrealized gains (losses) on interest rate swaps included in accumulated other comprehensive income | (29,941) | 3,598 | 1,935 |
| Level 2 | Interest rate swap | Designated as hedging instrument | Cash flow hedges | |||
| Interest Rate Swaps Measured at Fair Value | |||
| Fair value at beginning of period | 14,195 | 12,414 | |
| Fair value at end of period | $ (19,083) | $ 14,195 | $ 12,414 |
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- Definition Fair Value, Net Derivative Asset (Liability) Measured On Recurring Basis [Roll Forward] No definition available.
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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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