Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Total Revenues	$ 71,410	$ 39,134
Time-and-material
Disaggregation of Revenue [Line Items]
Total Revenues	65,206	36,240
Fixed-fee
Disaggregation of Revenue [Line Items]
Total Revenues	6,204	2,894
Retail
Disaggregation of Revenue [Line Items]
Total Revenues	23,307	8,850
Technology, Media and Telecom
Disaggregation of Revenue [Line Items]
Total Revenues	21,444	14,411
CPG/Manufacturing
Disaggregation of Revenue [Line Items]
Total Revenues	14,979	8,725
Finance
Disaggregation of Revenue [Line Items]
Total Revenues	4,527	3,438
Other
Disaggregation of Revenue [Line Items]
Total Revenues	7,153	3,710
North America
Disaggregation of Revenue [Line Items]
Total Revenues	57,609	32,606
Europe
Disaggregation of Revenue [Line Items]
Total Revenues	13,735	6,528
Other
Disaggregation of Revenue [Line Items]
Total Revenues	$ 66	$ 0