Accounts Receivable - Schedule of Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade accounts receivable	$ 425,808	$ 414,891
Less: Allowance for expected credit losses	(7,978)	(7,501)
Trade accounts receivable, net	417,830	407,390
Other receivables	$ 32,998	$ 34,253