Trade Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Receivables [Abstract]
Trade accounts receivable	$ 239,220	$ 144,729	$ 195,767
Allowance for doubtful accounts	(2,007)	(1,935)	(1,279)
Allowance for sales discounts and returns	(3,346)	(3,430)	(3,206)
Trade accounts receivable, net	$ 233,867	$ 139,364	$ 191,282