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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Feb. 26, 2024 | Feb. 07, 2024 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  |  | $ 5,500 | $ 500 |
Share-based compensation arrangement exercise price |  |  | $ 24.23 |  | $ 13.82
Common Stock, Par or Stated Value Per Share |  |  | $ 0.0001 |  | $ 0.0001
Aggregate fair value of restricted stock |  |  | $ 1,500 | $ 800 |
Common stock shares issued |  |  | 24,695,885 |  | 24,360,233
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount |  |  | $ 53,348 |  |
2021 Employee Stock Purchase Plan [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock shares issued |  |  | 5,736 | 0 |
Restricted Common Stock [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common stock shares issued |  |  | 63,061 |  |
Restricted Common Stock [Member] | Founders And Certain Employees [Member] | Disc Medicine Inc [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Common Stock, Par or Stated Value Per Share |  |  | $ 0.0001 |  |
Restricted stock units [Member] |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Number of shares available for options grant | 36,666 | 36,666 |  |  |
Share-based compensation arrangement option award percentage | 25.00% | 25.00% |  |  |
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount |  |  | $ 22,595 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  | 3 years 10 months 13 days |  |
Employee Stock Option |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |  |
Number of shares available for options grant | 55,000 | 55,000 |  |  |
Share-based compensation arrangement option award period | 10 years | 10 years |  |  |
Share-based compensation arrangement vesting period | 36 months | 36 months |  |  |
Share-based compensation arrangement option award percentage | 25.00% | 25.00% |  |  |
Share-based compensation arrangement exercise price | $ 64.66 | $ 65.25 |  |  |
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount |  |  | $ 30,753 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  |  | 3 years 4 months 13 days |  |

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