Geographic Information - Revenue by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 446,654	$ 385,661	$ 809,880	$ 690,646
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	208,402	184,143	361,103	309,256
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	60,198	55,849	102,213	93,208
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	30,609	27,274	61,955	57,371
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	23,091	17,461	45,489	33,022
Other Europe, Middle East and Africa (EMEA)
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	74,348	60,083	146,277	119,393
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 50,006	$ 40,851	$ 92,843	$ 78,396