Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Trade receivables	$ 193,372	$ 178,182
Less: Allowance for credit losses	(9,599)	(8,984)
Net trade receivables	183,773	169,198
Other receivables	49,082	13,040
Total accounts receivable	232,855	182,238
Accounts, Notes, Loans and Financing Receivable [Line Items]
Refundable alternative minimum tax credits	16,100	$ 8,100
CARES Act
Accounts, Notes, Loans and Financing Receivable [Line Items]
Refunds attributable to NOL carrybacks	$ 28,000