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Related Party Transactions - Schedule of Related Party Transactions (Detail) - Affiliated Entity [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Related Party Transaction [Line Items]        
Sales $ 373 $ 3,736 $ 3,761 $ 9,658
Purchases 331 469 1,457 1,327
Rent $ 297 $ 256 $ 867 $ 773