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Revenue from Contracts with Customers - Additional Information (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Contract assets $ 476,500 $ 471,800
Contract assets, current 331,910 318,191
Contract liabilities 199,200 164,100
Contract liabilities, current 195,145 $ 162,045
Recognized revenue included in contract liability $ 150,800