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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2021 | Jan. 31, 2025 | Dec. 31, 2024 | Aug. 02, 2024
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 18,618,203 |  |  |  | 19,044,737 |
Stock-based compensation | $ 7,359 |  |  |  |  |
Stock-based compensation included in capitalized internal-use software | 677 | $ 1,049 |  |  |  |
Intrinsic value of options exercised | 1,500 | 9,900 |  |  |  |
Cost not yet recognized for stock options, amount | 1,700 |  |  |  |  |
Restricted stock units outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Cost not yet recognized for restricted stock units, amount | $ 40,200 |  |  |  |  |
Cost not yet recognized, period for recognition (in years) | 2 years 3 months 18 days |  |  |  |  |
Options outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Award vesting period (in years) | 4 years |  |  |  |  |
Cost not yet recognized, period for recognition (in years) | 6 months |  |  |  |  |
Expiration period (in years) | 10 years |  |  |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
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 Employee Stock Purchase Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Minimum annual additional number of shares authorized (in shares) |  |  | 1,913,630 |  |  |
Minimum annual additional number of shares authorized, common stock outstanding (in percent) |  |  | 2.00% |  |  |
Common stock reserved for future issuance (in shares) | 2,033,281 |  |  |  | 965,766 |
2024 Inducement Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 2,000 |  |  |  | 2,000 | 414,740
2024 Inducement Plan | Restricted stock units outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 412,740 |  |  |  | 412,740 |
Bonus Plan | Restricted stock units outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Number of shares authorized (in shares) |  |  |  | 301,571 |  |
2022 Employee Bonus Plan | Restricted stock units outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Stock-based compensation | $ 1,100 | 800 |  |  |  |
Stock-based compensation included in capitalized internal-use software | $ 100 | 100 |  |  |  |
2021 Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 3,963,750 |  |  |  | 6,933,867 |
2021 Plan | Restricted stock units outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 6,311,667 |  |  |  | 4,351,393 |
2021 Plan | Options outstanding |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Common stock reserved for future issuance (in shares) | 1,111,155 |  |  |  | 1,114,620 |
2021 Plan | Employee Stock |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |  |  |
Cost not yet recognized, period for recognition (in years) | 10 months 24 days |  |  |  |  |
Stock-based compensation | $ 500 | 300 |  |  |  |
Stock-based compensation included in capitalized internal-use software | 100 | $ 200 |  |  |  |
Cost not yet recognized for stock options, amount | $ 2,600 |  |  |  |  |

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