Segment Data - Assets (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	[1]
Segment Reporting Information [Line Items]
Total assets	$ 7,946.7	$ 6,812.6
Inter-segment right of use lease assets	(196.0)	$ (208.5)
Total assets, excluding inter-segment notes receivable and right of use assets	7,946.7
Refining
Segment Reporting Information [Line Items]
Total assets, excluding inter-segment notes receivable and right of use assets	6,570.9
Logistics
Segment Reporting Information [Line Items]
Total assets, excluding inter-segment notes receivable and right of use assets	935.3
Retail Segment
Segment Reporting Information [Line Items]
Total assets, excluding inter-segment notes receivable and right of use assets	255.4
Operating Segments | Refining
Segment Reporting Information [Line Items]
Total assets	7,842.9
Operating Segments | Logistics
Segment Reporting Information [Line Items]
Total assets	935.3
Operating Segments | Retail Segment
Segment Reporting Information [Line Items]
Total assets	255.4
Intersegment Eliminations
Segment Reporting Information [Line Items]
Inter-segment notes receivable	1,026.8
Inter-segment right of use lease assets	245.2
Intersegment Eliminations | Refining
Segment Reporting Information [Line Items]
Inter-segment notes receivable	1,026.8
Inter-segment right of use lease assets	245.2
Intersegment Eliminations | Logistics
Segment Reporting Information [Line Items]
Inter-segment notes receivable	0.0
Inter-segment right of use lease assets	0.0
Intersegment Eliminations | Retail Segment
Segment Reporting Information [Line Items]
Inter-segment notes receivable	0.0
Inter-segment right of use lease assets	0.0
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Total assets, excluding inter-segment notes receivable and right of use assets	185.1
Corporate, Other and Eliminations
Segment Reporting Information [Line Items]
Total assets	$ (1,086.9)

[1] Adjusted to reflect the retrospective change in accounting policy from LIFO to FIFO for certain inventories. See Note 6 for further discussion.