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Revenue Recognition - Additional Information (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Revenue Recognition And Deferred Revenue [Abstract]    
Aggregate amount of transaction price allocated to material rights that remain unsatisfied $ 205  
Expected period of costs to be realized to recognize assets 1 year  
capitalized costs to obtain contract $ 1,812 $ 1,893