Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated and Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1,043,330
Ending balance	529,745	$ 1,043,330
Foreign Currency Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(50,056)	(35,610)	$ (53,171)
Other comprehensive income before reclassifications, net of income tax	5,725	(14,446)	17,561
Amounts reclassified from accumulated other comprehensive loss to the consolidated statement of operations and comprehensive income, net of income tax	6,897
Net current-period other comprehensive	12,622	(14,446)	17,561
Ending balance	(37,434)	(50,056)	(35,610)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	855	(208)	932
Other comprehensive income before reclassifications, net of income tax	106	1,432	(1,044)
Amounts reclassified from accumulated other comprehensive loss to the consolidated statement of operations and comprehensive income, net of income tax	739	(369)	(96)
Net current-period other comprehensive	845	1,063	(1,140)
Ending balance	1,700	855	(208)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(49,201)	(35,818)	(52,239)
Other comprehensive income before reclassifications, net of income tax	5,831	(13,014)	16,517
Amounts reclassified from accumulated other comprehensive loss to the consolidated statement of operations and comprehensive income, net of income tax	7,636	(369)	(96)
Net current-period other comprehensive	13,467	(13,383)	16,421
Ending balance	$ (35,734)	$ (49,201)	$ (35,818)