Stock-Based Compensation - Classification of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Stock-Based Compensation | ||||
| Total stock-based compensation expense | $ 7,862 | $ 8,000 | $ 15,145 | $ 12,910 |
| Income Statement Location [Axis]: us-gaap:CostOfRevenue | ||||
| Stock-Based Compensation | ||||
| Total stock-based compensation expense | 47 | 62 | 89 | 96 |
| Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Stock-Based Compensation | ||||
| Total stock-based compensation expense | 6,354 | 6,476 | 12,457 | 10,357 |
| Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense | ||||
| Stock-Based Compensation | ||||
| Total stock-based compensation expense | 600 | 496 | 980 | 799 |
| Income Statement Location [Axis]: prch:ProductAndTechnologyExpense | ||||
| Stock-Based Compensation | ||||
| Total stock-based compensation expense | $ 861 | $ 966 | $ 1,619 | $ 1,658 |