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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 08, 2024 | Jun. 30, 2024 | Jul. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2021 | Feb. 29, 2024 | Feb. 28, 2023 | Dec. 31, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  |  |  |  | 1,957,530 |  |  |  |
Intrinsic value of options exercised |  |  |  |  |  | $ 11,100 | $ 3,900 |  |  |  |  |
Aggregate grant-date fair value of options vested |  |  |  |  |  | 3,500 | 4,600 |  |  |  |  |
Stock-based compensation expense |  |  |  | $ 5,528 | $ 4,884 | 11,057 | 10,712 |  |  |  |  |
Stock-based compensation included in capitalized internal-use software |  |  |  |  |  | 1,965 | $ 2,030 |  |  |  |  |
Cost not yet recognized for stock options, amount |  | $ 6,500 |  | $ 6,500 |  | $ 6,500 |  |  |  |  |  |
Available for grant (in shares) |  | 8,915,423 |  | 8,915,423 |  | 8,915,423 |  | 7,400,180 |  |  |  |
ESPP withholding |  | $ 470 |  | $ 470 |  | $ 470 |  | $ 426 |  |  |  |
Restricted stock units outstanding |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 831,114 | 1,249,027 |  |  |  |  |
Granted (in dollars per share) |  |  |  |  |  | $ 9.16 | $ 5.59 |  |  |  |  |
Fair value |  |  |  |  |  | $ 15,900 | $ 5,600 |  |  |  |  |
Cost not yet recognized for restricted stock units, amount |  | $ 22,800 |  | $ 22,800 |  | $ 22,800 |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) |  |  |  |  |  | 1 year 10 months 24 days |  |  |  |  |  |
Restricted stock units outstanding | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Available for grant (in shares) | 1,800,000 |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation, cost not yet recognized, amount | $ 11,000 |  |  |  |  |  |  |  |  |  |  |
Employee Stock |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) |  |  |  |  |  | 1 year |  |  |  |  |  |
Maximum | Restricted stock units outstanding | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) | 4 years |  |  |  |  |  |  |  |  |  |  |
Minimum | Restricted stock units outstanding | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) | 2 years |  |  |  |  |  |  |  |  |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  | 14,662,500 |  | 14,662,500 |  | 14,662,500 |  |  |  |  |  |
Number of additional shares authorized (in shares) |  | 13,719,000 | 8,292,158 |  |  | 1,957,530 |  | 809,916 |  |  |  |
Minimum annual additional number of shares authorized (in shares) |  |  |  |  |  |  |  |  | 4,784,100 |  |  |
Minimum annual additional number of shares authorized, common stock outstanding (in percent) |  |  |  |  |  |  |  |  | 5.00% |  |  |
2021 Equity Incentive Plan | Restricted stock units outstanding | Share-Based Payment Arrangement, Nonemployee |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Award vesting period (in years) |  |  |  |  |  | 1 year |  |  |  |  |  |
2021 Equity Incentive Plan | Maximum | Restricted stock units outstanding | Share-Based Payment Arrangement, Employee |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Award vesting period (in years) |  |  |  |  |  | 4 years |  |  |  |  |  |
2021 Plan | Employee Stock |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  |  |  |  |  |  |  |  | 1,564,496
Number of additional shares authorized (in shares) |  |  |  |  |  | 783,012 | 667,874 |  |  |  |  |
Stock-based compensation expense |  |  |  | $ 500 | 900 | $ 800 | $ 1,900 |  |  |  |  |
Stock-based compensation included in capitalized internal-use software |  |  |  | 100 | 200 | 300 | 400 |  |  |  |  |
Cost not yet recognized for stock options, amount |  | $ 1,100 |  | 1,100 |  | $ 1,100 |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) |  |  |  |  |  | 1 year |  |  |  |  |  |
Incremental modification expense |  |  |  |  |  | $ 500 |  |  |  |  |  |
2022 Employee Bonus Plan | Restricted stock units outstanding |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  |  |  |  |  |  | 296,000 | 288,000 |
Stock-based compensation expense |  |  |  | 500 | 300 | 1,300 | 900 |  |  |  |  |
Stock-based compensation included in capitalized internal-use software |  |  |  | 100 | $ 43 | 200 | $ 100 |  |  |  |  |
2024 Employee Bonus Plan | Restricted stock units outstanding |  |  |  |  |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Accrued bonus balance |  | $ 900 |  | $ 900 |  | $ 900 |  |  |  |  |  |

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