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Summary of Significant Accounting Policies - Additional Information (Details)
6 Months Ended 12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jun. 30, 2021
Noncontrolling Interest [Line Items]          
Restricted cash $ 5,358,000 $ 5,358,000 $ 5,196,000 $ 5,816,000  
Restricted cash, current 0 0 173,000    
Escrow deposits 27,000,000 27,000,000 2,000,000    
Escrow deposit net outstanding amount 56,200,000 56,200,000      
Reserve for credit loss 1,400,000 1,400,000      
Write off for credit losses   100,000      
Interest receivable 1,200,000 1,200,000 300,000    
Costs incurred, development costs   700,000 $ 0    
Redemption amount $ 50,700,000 $ 50,700,000      
Number of segments | segment 2        
Revenue percentage 29.00% 29.00% 12.00% 12.00%  
Loss contingency accrual $ 1,600,000 $ 1,600,000      
Advertising expense   7,000,000 $ 3,600,000 $ 4,100,000  
Other Current Liabilities          
Noncontrolling Interest [Line Items]          
Loss contingency accrual 200,000 200,000      
Other Noncurrent Liabilities          
Noncontrolling Interest [Line Items]          
Loss contingency accrual $ 1,400,000 1,400,000      
Prepaid Expenses and Other Current Assets          
Noncontrolling Interest [Line Items]          
Costs incurred, development costs   300,000      
Other Noncurrent Assets          
Noncontrolling Interest [Line Items]          
Costs incurred, development costs   $ 400,000      
Insurance Company 1 | Revenue | Customer Concentration Risk          
Noncontrolling Interest [Line Items]          
Concentration risk percentage   74.00%      
Insurance Company 2 | Revenue | Customer Concentration Risk          
Noncontrolling Interest [Line Items]          
Concentration risk percentage   26.00%      
Title365          
Noncontrolling Interest [Line Items]          
Interest acquired         90.10%
Title365          
Noncontrolling Interest [Line Items]          
Ownership percentage 9.90% 9.90%      
Purchase price   $ 49,500,000      
Interest rate 5.00% 5.00%      
EBITDA ratio   4.4      
EBITDA period   12 months      
Title365 | Call Option          
Noncontrolling Interest [Line Items]          
Exercisable period   2 years      
Title365 | Put Option          
Noncontrolling Interest [Line Items]          
Exercisable period   5 years