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Trade Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Receivables [Abstract]      
Trade accounts receivable $ 241,955 $ 170,001 $ 231,559
Allowance for doubtful accounts (1,670) (2,110) (2,032)
Allowance for sales discounts and returns (3,750) (2,763) (3,080)
Trade accounts receivable, net $ 236,535 $ 165,128 $ 226,447