CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 272,962	$ (1,607)	$ 278,384	$ (45,252)
Other comprehensive income (loss)
Foreign currency translation adjustments	(6,517)	15,931	9,191	30,915
Derivative adjustments
Fair valuation of derivatives	1,390	(2,803)	(1,410)	(5,703)
Reclassification adjustment for loss on derivatives included in net income (loss)	41	1,600	292	3,553
Total other comprehensive income (loss)	(5,086)	14,728	8,073	28,765
Total comprehensive income (loss)	$ 267,876	$ 13,121	$ 286,457	$ (16,487)