Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Cost	$ 85,773	$ 56,680
Accumulated amortization	(18,464)	(21,420)
Net book value	67,309	35,260
Indefinite, cost	171	5,871
Indefinite, net book value	171	5,871
Total, cost	85,944	62,551
Total, accumulated amortization	(18,464)	(21,420)
Total, net book value	$ 67,480	$ 41,131
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Average remaining life in years	8 years	6 years 3 months 18 days
Cost	$ 73,217	$ 50,284
Accumulated amortization	(14,765)	(18,098)
Net book value	$ 58,452	$ 32,186
Customer Relationships [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	8 years	8 years
Customer Relationships [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	11 years	11 years
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	5 years	5 years
Average remaining life in years	4 years	3 years 2 months 12 days
Cost	$ 10,556	$ 3,296
Accumulated amortization	(2,613)	(1,159)
Net book value	$ 7,943	2,137
Customer Backlog [Member]
Finite Lived Intangible Assets [Line Items]
Cost		1,900
Accumulated amortization		$ (1,900)
Trade Name [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years		8 years
Average remaining life in years	5 years	6 years 3 months 18 days
Cost	$ 2,000	$ 1,200
Accumulated amortization	(1,086)	(263)
Net book value	$ 914	$ 937
Trade Name [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	9 months
Trade Name [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	8 years