Revenue from Contract with Customer (Schedule of Revenue by Geographic Region) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 469,624	$ 366,620	$ 291,609
United States
Disaggregation of Revenue [Line Items]
Revenue	306,700	230,557	170,815
Other Americas
Disaggregation of Revenue [Line Items]
Revenue	18,128	13,420	11,462
Total Americas
Disaggregation of Revenue [Line Items]
Revenue	324,828	243,977	182,277
EMEA
Disaggregation of Revenue [Line Items]
Revenue	91,227	83,326	78,301
APAC
Disaggregation of Revenue [Line Items]
Revenue	53,569	39,317	31,031
United Kingdom
Disaggregation of Revenue [Line Items]
Revenue	56,700	53,400	50,400
Netherlands
Disaggregation of Revenue [Line Items]
Revenue	$ 4,800	$ 3,200	$ 10,000