Segment and Geographic Data (Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 81,220	$ 75,016
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	12,255	11,036
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	4,024	4,153
Other Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	1,774	1,813
Israel
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	41,540	38,339
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	20,057	17,953
Canada and Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 1,570	$ 1,722