Condensed Consolidated Statements of Changes in Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | Earn-Out Shares Contingent Consideration | Lock-Up Shares Contingent Consideration | Cumulative Effect, Period of Adoption, Adjustment | Cumulative Effect, Period of Adoption, Adjusted Balance | Common Stock | Common StockEarn-Out Shares Contingent Consideration | Common StockLock-Up Shares Contingent Consideration | Common StockCumulative Effect, Period of Adoption, Adjustment | Common StockCumulative Effect, Period of Adoption, Adjusted Balance | Additional Paid-in Capital | Additional Paid-in CapitalEarn-Out Shares Contingent Consideration | Additional Paid-in CapitalLock-Up Shares Contingent Consideration | Additional Paid-in CapitalCumulative Effect, Period of Adoption, Adjustment | Additional Paid-in CapitalCumulative Effect, Period of Adoption, Adjusted Balance | Accumulated Deficit | Accumulated DeficitCumulative Effect, Period of Adoption, Adjusted Balance | Treasury Stock | Redeemable Convertible Series C Preferred Units | Redeemable Convertible Series C Preferred UnitsCumulative Effect, Period of Adoption, Adjustment | Redeemable Convertible Series C Preferred UnitsCumulative Effect, Period of Adoption, Adjusted Balance | Common Units | Common UnitsCumulative Effect, Period of Adoption, Adjustment | Common UnitsCumulative Effect, Period of Adoption, Adjusted Balance | Series A and B Preferred UnitsPreferred Stock | Series A and B Preferred UnitsPreferred StockCumulative Effect, Period of Adoption, Adjustment | Series A and B Preferred UnitsPreferred StockCumulative Effect, Period of Adoption, Adjusted Balance |
Beginning balance (in units) at Dec. 31, 2019 | | | | | | | | | | | | | | | | | | | 21,906,852 | (7,628,249) | 14,278,603 | 25,381,873 | (25,381,873) | 0 | | | |
Beginning balance at Dec. 31, 2019 | | | | | | | | | | | | | | | | | | | $ 304,943 | | $ 304,943 | $ 7,524 | $ (7,524) | $ 0 | | | |
Redeemable Convertible Series C Preferred Units | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Fair value adjustment of redemption option | | | | | | | | | | | | | | | | | | | $ (47,537) | | | | | | | | |
Ending balance (in units) at Mar. 31, 2020 | | | | | | | | | | | | | | | | | | | 14,278,603 | | | 0 | | | | | |
Ending balance at Mar. 31, 2020 | | | | | | | | | | | | | | | | | | | $ 257,406 | | | $ 0 | | | | | |
Beginning balance (in shares) at Dec. 31, 2019 | | | | | | 0 | | | 37,631,052 | 37,631,052 | | | | | | | | | | | | | | | 29,058,266 | (29,058,266) | 0 |
Beginning balance at Dec. 31, 2019 | $ (234,779) | | | $ 0 | $ (234,779) | $ 0 | | | $ 376 | $ 376 | $ 0 | | | $ 7,626 | $ 7,626 | $ (242,781) | $ (242,781) | | | | | | | | $ 478 | $ (478) | $ 0 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Fair value adjustment of redemption option | 47,537 | | | | | | | | | | | | | | | 47,537 | | | | | | | | | | | |
Share-based compensation | 487 | | | | | | | | | | 487 | | | | | | | | | | | | | | | | |
Distribution to Open Lending, LLC unitholders | (135,380) | | | | | | | | | | | | | | | (135,380) | | | | | | | | | | | |
Net income (loss) | 8,172 | | | | | | | | | | | | | | | 8,172 | | | | | | | | | | | |
Ending balance (in shares) at Mar. 31, 2020 | | | | | | 37,631,052 | | | | | | | | | | | | | | | | | | | 0 | | |
Ending balance at Mar. 31, 2020 | (313,963) | | | | | $ 376 | | | | | 8,113 | | | | | (322,452) | | | | | | | | | $ 0 | | |
Beginning balance (in units) at Dec. 31, 2019 | | | | | | | | | | | | | | | | | | | 21,906,852 | (7,628,249) | 14,278,603 | 25,381,873 | (25,381,873) | 0 | | | |
Beginning balance at Dec. 31, 2019 | | | | | | | | | | | | | | | | | | | $ 304,943 | | $ 304,943 | $ 7,524 | $ (7,524) | $ 0 | | | |
Redeemable Convertible Series C Preferred Units | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Fair value adjustment of redemption option | (47,537) | | | | | | | | | | | | | | | | | | | | | | | | | | |
Ending balance (in units) at Sep. 30, 2020 | | | | | | | | | | | | | | | | | | | 0 | | | 0 | | | | | |
Ending balance at Sep. 30, 2020 | | | | | | | | | | | | | | | | | | | $ 0 | | | $ 0 | | | | | |
Beginning balance (in shares) at Dec. 31, 2019 | | | | | | 0 | | | 37,631,052 | 37,631,052 | | | | | | | | | | | | | | | 29,058,266 | (29,058,266) | 0 |
Beginning balance at Dec. 31, 2019 | (234,779) | | | $ 0 | $ (234,779) | $ 0 | | | $ 376 | $ 376 | 0 | | | $ 7,626 | $ 7,626 | (242,781) | $ (242,781) | | | | | | | | $ 478 | $ (478) | $ 0 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Net income (loss) | (112,766) | | | | | | | | | | | | | | | | | | | | | | | | | | |
Ending balance (in shares) at Sep. 30, 2020 | | | | | | 126,919,572 | | | | | | | | | | | | | | | | | | | 0 | | |
Ending balance at Sep. 30, 2020 | 34,282 | | | | | $ 1,269 | | | | | 476,403 | | | | | (443,390) | | | | | | | | | $ 0 | | |
Beginning balance (in units) at Mar. 31, 2020 | | | | | | | | | | | | | | | | | | | 14,278,603 | | | 0 | | | | | |
Beginning balance at Mar. 31, 2020 | | | | | | | | | | | | | | | | | | | $ 257,406 | | | $ 0 | | | | | |
Redeemable Convertible Series C Preferred Units | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Recapitalization transaction, net of transaction costs (in units) | | | | | | | | | | | | | | | | | | | (14,278,603) | | | | | | | | |
Recapitalization transaction, net of transaction costs | | | | | | | | | | | | | | | | | | | $ (257,406) | | | | | | | | |
Ending balance (in units) at Jun. 30, 2020 | | | | | | | | | | | | | | | | | | | 0 | | | 0 | | | | | |
Ending balance at Jun. 30, 2020 | | | | | | | | | | | | | | | | | | | $ 0 | | | $ 0 | | | | | |
Beginning balance (in shares) at Mar. 31, 2020 | | | | | | 37,631,052 | | | | | | | | | | | | | | | | | | | 0 | | |
Beginning balance at Mar. 31, 2020 | (313,963) | | | | | $ 376 | | | | | 8,113 | | | | | (322,452) | | | | | | | | | $ 0 | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Recapitalization transaction, net of transaction costs (in shares) | | | | | | 54,218,857 | | | | | | | | | | | | | | | | | | | | | |
Recapitalization transaction, net of transaction costs | 242,543 | | | | | $ 542 | | | | | 242,001 | | | | | | | | | | | | | | | | |
Deferred tax asset | 1,874 | | | | | | | | | | 1,874 | | | | | | | | | | | | | | | | |
Estimated fair value of contingent consideration at June 10, 2020 | (347,089) | | | | | | | | | | (347,089) | | | | | | | | | | | | | | | | |
Share-based compensation | 2,189 | | | | | | | | | | 2,189 | | | | | | | | | | | | | | | | |
Net income (loss) | (49,805) | | | | | | | | | | | | | | | (49,805) | | | | | | | | | | | |
Ending balance (in shares) at Jun. 30, 2020 | | | | | | 91,849,909 | | | | | | | | | | | | | | | | | | | 0 | | |
Ending balance at Jun. 30, 2020 | (464,251) | | | | | $ 918 | | | | | (92,912) | | | | | (372,257) | | | | | | | | | $ 0 | | |
Ending balance (in units) at Sep. 30, 2020 | | | | | | | | | | | | | | | | | | | 0 | | | 0 | | | | | |
Ending balance at Sep. 30, 2020 | | | | | | | | | | | | | | | | | | | $ 0 | | | $ 0 | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Stock Issued During Period, Value, New Issues | 90,645 | | | | | $ 79 | | | | | 90,566 | | | | | | | | | | | | | | | | |
Stock warrant exercise (in shares) | | | | | | 7,882,163 | | | | | | | | | | | | | | | | | | | | | |
Stock issued during period, acquisitions | | $ 419,844 | $ 59,177 | | | | $ 238 | $ 34 | | | | $ 419,606 | $ 59,143 | | | | | | | | | | | | | | |
Stock issued during period, acquisitions (in shares) | | | | | | | 23,750,000 | 3,437,500 | | | | | | | | | | | | | | | | | | | |
Net income (loss) | (71,133) | | | | | | | | | | | | | | | (71,133) | | | | | | | | | | | |
Ending balance (in shares) at Sep. 30, 2020 | | | | | | 126,919,572 | | | | | | | | | | | | | | | | | | | 0 | | |
Ending balance at Sep. 30, 2020 | 34,282 | | | | | $ 1,269 | | | | | 476,403 | | | | | (443,390) | | | | | | | | | $ 0 | | |
Beginning balance (in shares) at Dec. 31, 2020 | | | | | | 128,198,185 | | | | | | | | | | | | 1,395,089 | | | | | | | | | |
Beginning balance at Dec. 31, 2020 | 26,622 | | | | | $ 1,282 | | | | | 491,246 | | | | | (428,406) | | $ (37,500) | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Share-based compensation | 701 | | | | | | | | | | 701 | | | | | | | | | | | | | | | | |
Net income (loss) | 12,862 | | | | | | | | | | | | | | | 12,862 | | | | | | | | | | | |
Ending balance (in shares) at Mar. 31, 2021 | | | | | | 128,198,185 | | | | | | | | | | | | 1,395,089 | | | | | | | | | |
Ending balance at Mar. 31, 2021 | 40,185 | | | | | $ 1,282 | | | | | 491,947 | | | | | (415,544) | | $ (37,500) | | | | | | | | | |
Redeemable Convertible Series C Preferred Units | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Fair value adjustment of redemption option | 0 | | | | | | | | | | | | | | | | | | | | | | | | | | |
Beginning balance (in shares) at Dec. 31, 2020 | | | | | | 128,198,185 | | | | | | | | | | | | 1,395,089 | | | | | | | | | |
Beginning balance at Dec. 31, 2020 | 26,622 | | | | | $ 1,282 | | | | | 491,246 | | | | | (428,406) | | $ (37,500) | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Net income (loss) | 118,242 | | | | | | | | | | | | | | | | | | | | | | | | | | |
Ending balance (in shares) at Sep. 30, 2021 | | | | | | 128,198,185 | | | | | | | | | | | | 2,007,834 | | | | | | | | | |
Ending balance at Sep. 30, 2021 | 127,590 | | | | | $ 1,282 | | | | | 493,972 | | | | | (310,164) | | $ (57,500) | | | | | | | | | |
Beginning balance (in shares) at Mar. 31, 2021 | | | | | | 128,198,185 | | | | | | | | | | | | 1,395,089 | | | | | | | | | |
Beginning balance at Mar. 31, 2021 | 40,185 | | | | | $ 1,282 | | | | | 491,947 | | | | | (415,544) | | $ (37,500) | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Share-based compensation | 927 | | | | | | | | | | 927 | | | | | | | | | | | | | | | | |
Share repurchase (in shares) | | | | | | | | | | | | | | | | | | (612,745) | | | | | | | | | |
Share repurchase | (20,000) | | | | | | | | | | | | | | | | | $ (20,000) | | | | | | | | | |
Net income (loss) | 75,966 | | | | | | | | | | | | | | | 75,966 | | | | | | | | | | | |
Ending balance (in shares) at Jun. 30, 2021 | | | | | | 128,198,185 | | | | | | | | | | | | 2,007,834 | | | | | | | | | |
Ending balance at Jun. 30, 2021 | 97,078 | | | | | $ 1,282 | | | | | 492,874 | | | | | (339,578) | | $ (57,500) | | | | | | | | | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Share-based compensation | 1,098 | | | | | | | | | | 1,098 | | | | | | | | | | | | | | | | |
Net income (loss) | 29,414 | | | | | | | | | | | | | | | 29,414 | | | | | | | | | | | |
Ending balance (in shares) at Sep. 30, 2021 | | | | | | 128,198,185 | | | | | | | | | | | | 2,007,834 | | | | | | | | | |
Ending balance at Sep. 30, 2021 | $ 127,590 | | | | | $ 1,282 | | | | | $ 493,972 | | | | | $ (310,164) | | $ (57,500) | | | | | | | | | |