Schedule II - Valuation and Qualifying Accounts and Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Warranty Reserve [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 29,473	$ 25,494	$ 30,754
Additions (Reductions) Charged to Cost and Expenses	3,846	9,861	979
Deductions	(4,724)	(5,882)	(6,239)
Balance at End of Period	28,595	29,473	25,494
Valuation Allowance of Deferred Tax Assets [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	2,775	2,988	3,015
Additions (Reductions) Charged to Cost and Expenses		1
Deductions	(543)	(214)	(27)
Balance at End of Period	$ 2,232	$ 2,775	$ 2,988