Income Taxes - Narrative (Details) - USD ($)		12 Months Ended
	Mar. 31, 2017	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Operating loss unavailable for carryforward	$ 1,506,000
Net loss		$ (130,026,000)	$ (321,143,000)	$ (109,613,000)
Income tax (expense) benefit		$ 979,000	$ 116,000	$ (6,107,000)
U.S. federal income tax at statutory rate		21.00%	21.00%	21.00%
Unrecognized tax benefits that would impact effective tax rate		$ 0	$ 0
Unrecognized tax benefits		5,991,000	5,809,000	$ 4,692,000	$ 3,105,000
Unrecognized tax benefits, income tax penalties and interest expense		0	0
Unrecognized tax benefits, income tax penalties and interest accrued		0
RentPath Holdings, Inc.
Operating Loss Carryforwards [Line Items]
Income tax (expense) benefit		979,000
Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforward		23,968,000	23,240,000
Research and development credits, decrease	$ 32,000
Federal
Operating Loss Carryforwards [Line Items]
Increase (decrease) in operating loss carryforwards		449,434,000
Federal deductible		149,464,000	145,296,000
Net loss		(125,110,000)	(246,880,000)	(95,873,000)
Foreign
Operating Loss Carryforwards [Line Items]
Net loss		$ (303,000)	$ (2,801,000)	$ (1,458,000)