Business Combinations - Estimates of Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 45,236	$ 95,173	$ 28,307
Weighted Average Estimated Useful Life (yrs)	12 years	12 years	8 years
Trademarks and tradenames
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 16,794	$ 23,149	$ 9,834
Weighted Average Estimated Useful Life (yrs)	15 years	15 years	15 years
Non-competition agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 2,645	$ 7,054	$ 3,315
Weighted Average Estimated Useful Life (yrs)	5 years	5 years	5 years
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 390	$ 1,578	$ 4,767
Weighted Average Estimated Useful Life (yrs)	1 year	1 year 6 months	1 year 6 months