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Employee Stock Purchase and Stock Incentive Plans - Additional Information (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 30, 2021 | Jun. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
New option shares granted (in shares) |  |  | 0 |
Number of shares vested (in shares) |  |  | 1,153,930 |
Number of unvested stock awards vesting start date |  |  | Apr. 01, 2024 |
Number of unvested stock awards vesting end date |  |  | Dec. 31, 2027 |
Restricted Shares |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Options vesting period |  |  | 4 years |
Number of shares granted (in shares) |  |  | 278,217 |
Number of shares vested (in shares) |  |  | 816,700 |
Performance Based Stock Units |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Number of shares granted (in shares) |  |  | 137,421 |
Number of shares vested (in shares) |  |  | 260,842 |
Two Thousand Twenty One Employee Stock Purchase Plan |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Common stock purchase percentage | 15.00% |  |  |
Period prior to last day of offering period | 30 days |  |  |
Bowman Consulting Group Ltd. 2021 Omnibus Equity Incentive Plan |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
New option shares granted (in shares) |  |  | 0 |
Intrinsic value per share of options (in dollars per share) |  |  | $ 25.51 | $ 29.24
Cash payments received from exercise of options |  |  | $ 14,701 |
Compensation costs |  | $ 0 | 0 |
Unrecognized compensation costs |  | $ 0 | $ 0 |
Common stock authorized and reserved for issuance (in shares) |  | 4,883,271 | 4,883,271 |
Percentage of common stock reserve automatically increases |  |  | 5.00% |
Bowman Consulting Group Ltd. 2021 Omnibus Equity Incentive Plan | Minimum |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Options vesting period |  |  | 2 years |
Bowman Consulting Group Ltd. 2021 Omnibus Equity Incentive Plan | Maximum |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Options vesting period |  |  | 5 years |
Bowman Consulting Group Ltd. Stock Bonus Plan | Restricted Shares |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Number of shares granted (in shares) |  |  | 0 |
2021 Executive Officers Long Term Incentive Plan | Performance Based Stock Units |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Options vesting period |  |  | 2 years 10 months 28 days |
Number of shares granted (in shares) |  |  | 137,421 |

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