Geographic Information - Property and Equipment by Geographic Area (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	$ 96,503	$ 83,636
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	65,633	59,473
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	7,408	5,660
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	5,749	3,657
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	5,277	4,237
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	3,765	4,194
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	2,082	1,875
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment, net	$ 6,589	$ 4,540