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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narratives (Details) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2021 | Dec. 31, 2021 USD ($) segment contract | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Nov. 15, 2021 USD ($) | Jul. 31, 2021
Significant Accounting Policies |  |  |  |  |  |
Capitalized software development costs |  | $ 4,900,000 | $ 1,800,000 | $ 1,700,000 |  |
Deferred offering costs |  | $ 0 | 0 |  | $ 8,000,000.0 |
Number of performance obligations | contract |  | 2 |  |  |  |
Contract assets |  | $ 8,000 | 1,165,000 |  |  |
Cashback rewards |  | 239,000 | 0 |  |  |
Cashback rewards from contract revenue |  | 1,100,000 |  |  |  |
Bonus payments as a percentage of stock options issued (percent) |  |  |  |  |  | 45.00%
Bonus expense |  | 48,416,000 |  |  |  |
Consideration revenue from vendors |  | $ 2,900,000 | $ 1,000,000 | $ 0 |  |
Number of reportable segments | segment |  | 1 |  |  |  |
Executive Officer |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Bonus expense |  | $ 7,900,000 |  |  |  |
Stock options |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Share based compensation vesting period (years) |  | 4 years |  |  |  |
Restricted stock units |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Share based compensation vesting period (years) |  | 8 years |  |  |  |
Service period (in years) | 1 year | 1 year |  |  |  |
Restricted stock units | Share-based Payment Arrangement, Nonemployee |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Service period (in years) | 3 months |  |  |  |  |
Restricted stock units | 2021 Incentive Plan |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Share based compensation vesting period (years) | 3 years |  |  |  |  |
Commercial building |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Property, plant and equipment useful life (years) |  | 30 years |  |  |  |
Capitalized software |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Property, plant and equipment useful life (years) |  | 3 years |  |  |  |
Computers and equipment |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Property, plant and equipment useful life (years) |  | 3 years |  |  |  |
Furniture and fixtures |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Property, plant and equipment useful life (years) |  | 5 years |  |  |  |
Software Development |  |  |  |  |  |
Significant Accounting Policies |  |  |  |  |  |
Bonus expense |  | $ 1,500,000 |  |  |  |

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