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Valuation and Qualifying Accounts and Reserves (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 Period $ 10,239 $ 6,756 $ 2,378
Additions (reductions) to Costs and Expenses 2,814 12,073 5,853
Write offs (3,808) (8,590) (1,475)
Balance at End of Period 9,245 10,239 6,756
Valuation allowance for deferred tax assets:      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 1,325 1,086 251
Additions (reductions) to Costs and Expenses 11,613 239 835
Write offs 0 0 0
Balance at End of Period $ 12,938 $ 1,325 $ 1,086