Supplementary Information - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Noncash or Part Noncash Acquisitions [Line Items]
Depreciation expense, including amortization of right-of-use assets under finance leases		$ 2,100	$ 1,700	$ 6,100	$ 5,400
Loss (gain) on mark-to-market adjustment of contingent consideration				(4,494)	7,482
2023 Acquisitions [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Consideration for the business acquisition		5,400		5,400
2021 Acquisitions [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Loss (gain) on mark-to-market adjustment of contingent consideration		3,500	$ 2,200	(4,500)	$ 7,500
Business acquisition, Contingent consideration liability		$ 16,500		$ 16,500
Class A Common Stock [Member] | 2021 Acquisitions [Member] | Subsequent Event [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Business acquisition, Equity interest issued, Number of shares	257,382