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Share-based compensation arrangement by share based payment award options outstanding intrinsic value per share.

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Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Period Prior To Last Day Of Offering Period

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Share-based compensation arrangement by share-based payment award, vesting end date.

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Share-based compensation arrangement by share-based payment award, vesting start date.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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Purchase price of common stock expressed as a percentage of its fair value.

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Employee Stock Purchase and Stock Incentive Plans - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Apr. 30, 2021	Mar. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
New option shares granted (in shares)		0
Number of shares vested (in shares)		(2,457,015)
Number of unvested stock awards vesting start date		Oct. 01, 2022
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		5 years
Number of shares granted (in shares)		59,437
Number of shares vested (in shares)		(127,190)
Performance Based Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted (in shares)		245,710
Number of shares vested (in shares)		0
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)		$ 22.43	$ 15.57
Cash payments received from exercise of options		$ 6,739
Compensation costs		0
Unrecognized compensation costs		$ 0
Common stock authorized and reserved for issuance (in shares)		4,128,557
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)		245,710