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Segment Reporting, Geographic Information and Concentration of Credit Risk - Additional Information (Detail) - Customer
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Segment Reporting [Abstract]      
Concentration Risk, Customer No customer accounted for 10% or more of net revenue for either of the three months ended March 31, 2020 or 2019. No customer accounted for 10% of net accounts receivable at March 31, 2020 or December 31, 2019.    
Number of major customer represented stated percentage of total net revenue 0 0  
Number of customers who accounted for 10% or more net accounts receivable 0   0