Segment and Geographic Information - Summary of Revenue and Long-lived Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 162,093	$ 164,006	$ 533,891	$ 517,779
Long-lived assets	95,575		95,575		$ 85,204
Americas [Member]
Segment Reporting Information [Line Items]
Revenues	131,306	138,938	434,664	440,420
Long-lived assets	75,361		75,361		68,707
Europe [Member]
Segment Reporting Information [Line Items]
Revenues	25,991	20,556	83,852	65,061
Long-lived assets	20,023		20,023		16,491
Asia [Member]
Segment Reporting Information [Line Items]
Revenues	4,796	$ 4,512	15,375	$ 12,298
Long-lived assets	$ 191		$ 191		$ 6