Accumulated Other Comprehensive Loss - Schedule of Components of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 158,088	$ 151,600
Foreign currency translation	(1,920)	(430)
Unrealized loss on interest rate swap, net of tax	(1,181)
Ending Balance	158,172	143,814
Net Unrealized Gain (Loss) on Interest Rate Swap [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(104)
Unrealized loss on interest rate swap, net of tax	(1,181)
Ending Balance	(1,285)
Cumulative Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(4,753)	(5,154)
Foreign currency translation	(1,920)	(430)
Ending Balance	(6,673)	(5,584)
Total Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(4,857)	(5,154)
Foreign currency translation	(1,920)	(430)
Unrealized loss on interest rate swap, net of tax	(1,181)
Ending Balance	$ (7,958)	$ (5,584)