SCHEDULE II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 3,497	$ 2,826	$ 2,589
Additions Charged to Operations		2,471	3,451	3,858
Net Deductions	[1]	3,549	2,780	3,621
Balance at End of Period		2,419	3,497	2,826
Deferred Tax Asset Valuation Allowance
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		3,375	2,886	3,846
Additions Charged to Operations		1,028	489
Net Deductions	[2]			960
Balance at End of Period		$ 4,403	$ 3,375	$ 2,886

[1] Represents write-offs of accounts, net of recoveries.

[2] Represents current year releases credited to expenses and current year reductions due to decreases in net deferred tax assets.