Schedule II - Consolidated Valuation and Qualifying Accounts (Detail) - Allowance for doubtful accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 3,790	$ 2,890	$ 3,395
Charged/(Credited) to Expense	3,469	2,452	2,314
Other Adjustments	67	(59)	14
Deductions	(928)	(1,493)	(2,833)
Balance at End of Period	$ 6,398	$ 3,790	$ 2,890