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Equity-based Compensation - Summary of Equity-based Compensation Cost Recognized (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total equity-based compensation | $ 11,521 | $ 681 | $ 22,123 | $ 1,947
QLH Class B units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total equity-based compensation | 0 | 681 | 0 | 1,947
QLH restricted Class B-1 units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total equity-based compensation | 140 | 0 | 265 | 0
Restricted Class A shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total equity-based compensation | 285 | 0 | 552 | 0
Restricted stock units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Total equity-based compensation | $ 11,096 | $ 0 | $ 21,306 | $ 0

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