Segment Information - Consolidated Financial Information (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2021 segment	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Number of reportable segments | segment	2			2
Total segment adjusted EBITDA (loss)		$ (14,267)	$ (9,925)	$ (21,337)	$ (19,519)
Reconciling items:
Depreciation and amortization		(6,416)	(3,894)	(12,899)	(6,356)
Non-cash stock-based compensation expense		(9,702)	(7,035)	(15,556)	(24,160)
Acquisition and related expense		(214)	(1,056)	(1,110)	(1,784)
Non-cash long-lived asset impairment charge			(72)	(70)	(139)
Revaluation of contingent consideration		(1,481)	(574)	(4,686)
Investment income and realized gains		(243)	(387)	(440)	(397)
Non-cash bonus expense		1,526
Operating loss		(30,797)	(22,943)	(56,098)	(52,575)
Vertical Software | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment adjusted EBITDA (loss)		6,038	8,107	9,022	11,258
Insurance | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment adjusted EBITDA (loss)		(5,068)	(2,951)	(1,782)	(2,443)
Corporate and other | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment adjusted EBITDA (loss)		$ (15,237)	$ (15,073)	$ (28,577)	$ (28,334)