Geographic Information - Property and Equipment by Geographic Area (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	$ 91,872	$ 96,503
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	63,494	65,633
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	6,437	7,408
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	5,369	5,277
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	5,003	5,749
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	5,252	5,847
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	$ 6,317	$ 6,589