Accumulated Other Comprehensive Income (Loss) - Components of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 356,864
Ending Balance	364,833
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,833
Other comprehensive loss	(1,901)
Ending Balance	(68)
Neo Medical [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,419
Other comprehensive loss	(115)
Income taxes	28
Ending Balance	1,332
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	3,252
Other comprehensive loss	(2,016)
Income taxes	28
Ending Balance	$ 1,264