Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 02, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2017
Operating Loss Carryforwards [Line Items]
Income tax benefit		$ 311	$ 0	$ 5,363	$ 0
Effective tax rate (percent)				6.10%	0.00%
Operating loss unavailable for carryforward							$ 1,538
Federal Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards						$ 227,751
Operating loss carryforwards, not subject to expiration						142,420
Federal Jurisdiction | RentPath Holdings
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 252,792
Federal deductible	142,632
Operating loss carryforwards, not subject to expiration	$ 42,911
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards						12,576
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards						$ 2,050