Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance	$ 177,400
Other comprehensive income before reclassifications	1,778	$ (5,630)
Amounts reclassified from accumulated other comprehensive income	(405)	(489)
Total other comprehensive income (loss), net of tax	2,183	(5,141)
Ending balance	165,682
Foreign currency translation adjustment [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance	(1,965)	6,863
Other comprehensive income before reclassifications	1,778	(4,651)
Amounts reclassified from accumulated other comprehensive income	0	0
Total other comprehensive income (loss), net of tax	1,778	(4,651)
Ending balance	(187)	2,212
Changes in derivative financial instrument [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance	(4,044)	(4,075)
Other comprehensive income before reclassifications	0	(979)
Amounts reclassified from accumulated other comprehensive income	(405)	(489)
Total other comprehensive income (loss), net of tax	405	(490)
Ending balance	(3,639)	(4,565)
Total accumulated comprehensive income (loss)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance	(6,009)	2,788
Ending balance	$ (3,826)	$ (2,353)