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Contract Balances - Additional Information (Detail1) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Contract With Customer Asset And Liability [Line Items]    
Revenue, Remaining performance obligation $ 205,900  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01    
Contract With Customer Asset And Liability [Line Items]    
Revenue, Remaining performance obligation $ 191,300,000  
Revenue, Remaining performance obligations, Expected timing of satisfaction, Period 12 months  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01    
Contract With Customer Asset And Liability [Line Items]    
Revenue, Remaining performance obligation $ 14,700,000  
Revenue, Remaining performance obligations, Expected timing of satisfaction, Period