Supplementary Information - Summary of Other Accrued Expenses and Current Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Income taxes payable	$ 4,367	$ 7,250
Accrued VAT	3,625	6,604
Accrued professional fees	3,577	3,156
Accrued royalties	2,263	2,009
Defined contribution plan liabilities	1,565	1,660
Obligations for acquisition of businesses	1,502	1,957
Insurance reserves	1,034	843
Other current liabilities	6,788	7,925
Total	$ 24,721	$ 31,404