Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Summary Of Significant Accounting Policies [Line Items]
Cash deposits	$ 25,767,000
General liability claim per occurrence, cap	500,000	$ 500,000	$ 500,000
Aggregate annual cap per policy year	0	0	0
Pre-funding claims and covers claims annual cap	5,000,000	5,000,000	5,000,000
Medical claim per occurrence, cap	250,000	250,000	$ 250,000
Insurance Reserves	$ 6,810,000	$ 9,034,000
Minimum Percentage for Tax position measure as largest amount of benefit	50.00%
Reportable operating segments	2	2	2
Minimum
Summary Of Significant Accounting Policies [Line Items]
Equity method investment, ownership percentage	20.00%
Maximum
Summary Of Significant Accounting Policies [Line Items]
Equity method investment, ownership percentage	50.00%
Cost method investment, ownership Percentage	20.00%
Pre-funding claims and covers claims per occurrence	$ 250,000	$ 250,000	$ 250,000