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Stock Options - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Options vesting period | 4 years |
Bowman Consulting Group Ltd. Stock Option Plan |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
New option shares granted | 0 |
Intrinsic value per share of options | $ 6.00 | $ 6.43
Cash payments received from exercise of options | $ 18,424 |
Compensation costs | 0 |
Unrecognized compensation costs | $ 0 |
Minimum | Bowman Consulting Group Ltd. Stock Option Plan |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Options vesting period | 2 years |
Maximum | Bowman Consulting Group Ltd. Stock Option Plan |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Options vesting period | 5 years |

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