COMPREHENSIVE INCOME (LOSS) - Schedule of Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, Beginning of Period	$ 1,416,736	$ 1,375,796
Other comprehensive loss	(27,458)
Less: Amounts reclassified from accumulated other comprehensive loss	729
Net current-period other comprehensive loss	(28,187)	(11,236)
Balance, End of Period	1,341,803	1,397,030
Gains and Losses on Derivatives
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, Beginning of Period	(26,625)
Other comprehensive loss	(20,577)
Less: Amounts reclassified from accumulated other comprehensive loss	729
Net current-period other comprehensive loss	(21,306)
Balance, End of Period	(47,931)
Defined Benefit Pension Items
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, Beginning of Period	(9,709)
Other comprehensive loss	(68)
Less: Amounts reclassified from accumulated other comprehensive loss	0
Net current-period other comprehensive loss	(68)
Balance, End of Period	(9,777)
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, Beginning of Period	(40,067)
Other comprehensive loss	(6,813)
Less: Amounts reclassified from accumulated other comprehensive loss	0
Net current-period other comprehensive loss	(6,813)
Balance, End of Period	(46,880)
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, Beginning of Period	(76,401)	(45,443)
Net current-period other comprehensive loss	(28,187)	(11,236)
Balance, End of Period	$ (104,588)	$ (56,679)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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