Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Related Party Transaction [Line Items]
Cost of sales	$ 755.3	$ 1,363.4
Accounts payable to related party	0.5		$ 1.1
Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Cost of sales	2.9	$ 8.1
Accounts payable to related party	$ 0.5		$ 1.1

Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant