Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Cost	$ 56,601	$ 10,801
Accumulated amortization	(11,303)	(9,554)
Net book value	45,298	1,247
Indefinite, cost	5,871	5,871
Indefinite, net book value	5,871	5,871
Total, cost	62,472	16,672
Total, accumulated amortization	(11,303)	(9,554)
Total, net book value	$ 51,169	$ 7,118
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	8 years	11 years
Average remaining life in years	7 years 9 months 18 days	6 years 9 months 18 days
Cost	$ 50,244	$ 10,644
Accumulated amortization	(10,459)	(9,510)
Net book value	$ 39,785	$ 1,134
Customer Relationships [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	8 years
Customer Relationships [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in 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 8 months 12 days	3 years 7 months 6 days
Cost	$ 3,257	$ 157
Accumulated amortization	(174)	(44)
Net book value	$ 3,083	$ 113
Customer Backlog [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	6 months
Average remaining life in years	3 months 18 days
Cost	$ 1,900
Accumulated amortization	(633)
Net book value	$ 1,267
Trade Name [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life in years	8 years
Average remaining life in years	7 years 9 months 18 days
Cost	$ 1,200
Accumulated amortization	(37)
Net book value	$ 1,163