XML 69 R55.htm IDEA: XBRL DOCUMENT v3.22.1
Inventory Financing Agreements - Washington Refinery Intermediation Agreement (Details) - Washington Refinery Intermediation Agreement - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Supply Commitment [Line Items]    
Line of credit facility, borrowing base $ 57.5 $ 54.5
Letter of Credit    
Supply Commitment [Line Items]    
Letters of credit outstanding, amount $ 211.2 $ 167.0