Accounts and Other Receivables - Allowance for Doubtful Accounts Related to Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning of period	$ 86,886	$ 70,890
Provision for credit losses	2,477	117,746
Write-offs	(5,963)	(108,444)
Recoveries1	8,264	2,222
Impact of foreign currency1	(3,762)	(7,586)
Allowance for credit losses end of period	$ 87,902	$ 74,828