Revenue - Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Total Revenues	$ 52,969	$ 31,416
North America [Member]
Disaggregation Of Revenue [Line Items]
Total Revenues	33,038	19,881
International [Member]
Disaggregation Of Revenue [Line Items]
Total Revenues	$ 19,931	$ 11,535