Schedule II - Valuation and Qualifying Accounts - Roll Forward (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	$ 5,344	$ 4,860	$ 5,369
Charged to costs and expenses	1,645	1,172	2,015
Deductions from reserves, net	1,200	688	2,524
Balance at end of year	5,789	5,344	4,860
Income tax valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of year	7,188	5,936	5,039
Charged to costs and expenses	2,575	2,854	1,138
Deductions from reserves, net	951	1,602	241
Balance at end of year	$ 8,812	$ 7,188	$ 5,936