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Related Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Rent expense	$ 2,100,000	$ 1,400,000	$ 3,800,000	$ 2,800,000
Related party transaction, due from related party	100,000		100,000		$ 100,000
2015 Acquisition
Related Party Transaction [Line Items]
Related party transaction, due to related party	200,000		200,000		200,000
Administrative, Accounting and Project Management Services
Related Party Transaction [Line Items]
Related Party transaction, cost of service			33,000	46,000
Related party transaction, due from related party	38,000	100,000	38,000	100,000
Gregory Bowman
Related Party Transaction [Line Items]
Related party transaction, due from employee	65,000	62,000	65,000	62,000
BCG Chantilly, LLC
Related Party Transaction [Line Items]
Related party transaction, due from (to) related party	0		0		0
Rent expense	$ 21,000	21,000	$ 41,000	40,000
BCG Chantilly, LLC \| Mr. Bowman, Mr. Bruen and Mr. Hickey
Related Party Transaction [Line Items]
Ownership percentage	63.60%		63.60%
Bowman Lansdowne Development, LLC
Related Party Transaction [Line Items]
Notes receivable	$ 500,000		$ 500,000		500,000
Lansdowne Development Group, LLC
Related Party Transaction [Line Items]
Notes receivable	400,000		400,000		400,000
Accounts receivable	100,000		100,000		100,000
Bowman Realty Investments 2010, LLC
Related Party Transaction [Line Items]
Notes receivable	200,000		200,000		200,000
Alwington Farm Developers, LLC
Related Party Transaction [Line Items]
Notes receivable	1,200,000		1,200,000		$ 1,200,000
MREC Shenandoah VA, LLC \| Engineering Services
Related Party Transaction [Line Items]
Related Party transaction, payments received	$ 100,000	$ 0	$ 100,000	$ 0
MREC Shenandoah VA, LLC \| Lake Frederick Holdings, LLC
Related Party Transaction [Line Items]
Ownership percentage	92.00%		92.00%
Bowman Realty 2013 \| Bowman Lansdowne
Related Party Transaction [Line Items]
Ownership percentage	8.00%		8.00%
Mr. Bowman \| Lake Frederick Holdings, LLC
Related Party Transaction [Line Items]
Ownership percentage	100.00%		100.00%