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Basis of Presentation and Summary of Significant Accounting Policies - Summary of Activity of Company's Accrued Warranty Liability (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Movement in Standard Product Warranty Accrual [Roll Forward]      
Balance at Beginning of Period $ 11,964 $ 12,300 $ 13,026
Accruals for Warranties 7,909 7,540 5,033
Settlements Made (8,923) (7,876) (5,759)
Balance at End of Period $ 10,950 $ 11,964 $ 12,300