Shareholder's Equity - Accumulated Other Comprehensive Loss, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 307,859	$ 375,829	$ 380,326	$ 376,772
Other comprehensive loss before reclassification	(8,801)		(70,925)
Amounts reclassified from accumulated other comprehensive loss, net	7,323		9,985
Other comprehensive loss	(1,478)	(9,332)	(60,940)	(16,933)
Balance at end of period	308,089	361,873	308,089	361,873
Disproportionate tax effect	14,600		14,600
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(78,763)		(59,143)
Other comprehensive loss before reclassification	1,762		(17,858)
Amounts reclassified from accumulated other comprehensive loss, net	0		0
Other comprehensive loss	1,762		(17,858)
Balance at end of period	(77,001)		(77,001)
Deferred income tax expense (benefit)	(5,597)		(5,597)		$ (6,035)	$ (5,474)
Deferred tax expense (benefit) before reclassification	437		(123)
Unrealized Losses on Interest Rate Swap and Foreign Currency Forward Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(58,586)		(18,744)
Other comprehensive loss before reclassification	(10,563)		(53,067)
Amounts reclassified from accumulated other comprehensive loss, net	7,323		9,985
Other comprehensive loss	(3,240)		(43,082)
Balance at end of period	(61,826)		(61,826)
Deferred income tax expense (benefit)	1,246		1,246		$ 2,171	$ 14,273
Deferred tax expense (benefit) before reclassification	(546)		(10,964)
Deferred tax benefit, reclassification from AOCI	379		2,063
Accumulated Other Comprehensive Loss, Net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(137,349)	(74,478)	(77,887)	(66,877)
Balance at end of period	$ (138,827)	$ (83,810)	$ (138,827)	$ (83,810)