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Trade Accounts Receivable, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Receivables [Abstract]      
Trade accounts receivable $ 255,077 $ 170,001 $ 239,220
Allowance for doubtful accounts (1,446) (2,110) (2,007)
Allowance for sales discounts and returns (3,700) (2,763) (3,346)
Trade accounts receivable, net $ 249,931 $ 165,128 $ 233,867