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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 |  |  |

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