Accumulated Other Comprehensive Loss, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shareholders' Equity Attributable to Parent, Beginning Balance	$ 457,015
Net current period other comprehensive (loss) income	8,652	$ (16,077)
Shareholders' Equity Attributable to Parent, Ending Balance	459,341
Disproportionate tax effect	14,700
Deferred taxes provided for basis difference in foreign subsidiaries	0
Accumulated Other Comprehensive Loss, Net
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shareholders' Equity Attributable to Parent, Beginning Balance	(107,135)
Other comprehensive income (loss) before reclassification	3,391
Amounts reclassified from accumulated other comprehensive loss, net	5,260
Net current period other comprehensive (loss) income	8,651
Shareholders' Equity Attributable to Parent, Ending Balance	(98,484)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shareholders' Equity Attributable to Parent, Beginning Balance	(81,602)
Other comprehensive income (loss) before reclassification	7,246
Net current period other comprehensive (loss) income	7,246
Shareholders' Equity Attributable to Parent, Ending Balance	(74,356)
Deferred income tax expense (benefit)	(5,496)		$ (4,113)
Deferred tax expense (benefit) before reclassification	(1,383)
Unrealized (losses) gains on interest rate swap contracts
Accumulated Other Comprehensive Income (Loss) [Line Items]
Shareholders' Equity Attributable to Parent, Beginning Balance	(25,533)
Other comprehensive income (loss) before reclassification	(3,855)
Amounts reclassified from accumulated other comprehensive loss, net	5,260
Net current period other comprehensive (loss) income	1,405
Shareholders' Equity Attributable to Parent, Ending Balance	(24,128)
Deferred income tax expense (benefit)	10,629		$ 9,269
Deferred tax expense (benefit) before reclassification	(3,732)
Deferred tax expense (benefit), reclassification from AOCI	$ 5,092