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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