Total Revenues Gross Profit and Long Lived Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets
Total revenues	$ 125,360	$ 127,994	$ 366,710	$ 376,247
Gross profit	99,975	105,675	290,444	308,341
Long-lived assets	95,935		95,935		$ 103,347
Domestic
Revenues from External Customers and Long-Lived Assets
Total revenues	77,629	74,530	221,060	213,507
Gross profit	62,908	62,526	178,979	178,485
Long-lived assets	85,716		85,716		89,817
EMEA
Revenues from External Customers and Long-Lived Assets
Total revenues	36,065	40,886	110,931	122,537
Gross profit	28,798	33,571	86,835	99,246
Long-lived assets	6,172		6,172		7,874
Other Regions
Revenues from External Customers and Long-Lived Assets
Total revenues	11,666	12,578	34,719	40,203
Gross profit	8,269	$ 9,578	24,630	$ 30,610
Long-lived assets	$ 4,047		$ 4,047		$ 5,656