Segment Information (Schedule of Fixed Assets by Geographic Location) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 225,791	$ 256,045
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	210,252	239,387
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	14,510	15,938
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	$ 1,029	$ 720