General and Basis of Presentation - Basis of Comparison (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Revenue	$ 70,066	$ 47,440	$ 178,383	$ 135,029
General and administrative	20,562	6,960	69,271	20,769
Services [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Revenue	63,690	$ 44,166	$ 163,366	$ 124,210
Services [Member] | Revision of Prior Period, Adjustment
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Revenue	1,100
General and administrative	$ 1,000