Unaudited Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (182,895)	$ (17,349)	$ (772,576)	$ 5,128
Other comprehensive income (loss):
Foreign currency translation adjustment	6,636	1,408	(41,042)	7,398
Unrealized gain (loss) on cash flow hedge, net of tax benefit (expense) of $2,958 and $552 for the three months ended June 30, 2020 and 2019, respectively, and ($8,477) and $3,152 for the six months ended June 30, 2020 and 2019, respectively.	(8,798)	391	23,746	(8,710)
Gain (loss) on intra-entity foreign currency transactions	874	(1,115)	(3,480)	807
Total other comprehensive income (loss)	(1,288)	684	(20,776)	(505)
Comprehensive income (loss)	$ (184,183)	$ (16,665)	$ (793,352)	$ 4,623