CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net income (loss)	$ (222.0)	$ 48.1	$ (173.3)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	149.0	146.8	98.3
Amortization of turnaround costs	38.0	36.1	23.1
Non-cash interest expense	8.0	5.7	17.6
Debt extinguishment costs	0.4	1.6	41.4
Non-cash RINs (gain) expense	(31.9)	(199.1)	197.5
Unrealized (gain) loss on derivative instruments	5.9	(33.0)	45.9
Loss on impairment and disposal of assets	2.0	3.5	0.7
Equity based compensation	14.6	14.7	17.3
Lower of cost or market inventory adjustment	7.0	33.2	19.4
Other non-cash activities	(7.0)	0.5	2.2
Changes in assets and liabilities
Accounts receivable	8.0	(19.2)	(14.1)
Inventories	16.1	25.1	(190.5)
Prepaid expenses and other current assets	17.9	(25.9)	(5.6)
Turnaround costs	(20.6)	(47.9)	(62.6)
Other assets	(5.6)	(10.2)	0.0
Accounts payable	1.7	(12.4)	56.9
Accrued interest payable	(5.2)	15.3	8.4
Accrued salaries, wages and benefits	4.0	(17.1)	9.5
Other taxes payable	(1.6)	4.0	(2.1)
Other liabilities	(25.1)	15.3	10.6
Net cash provided by (used in) operating activities	(46.4)	(14.9)	100.6
Investing activities
Additions to property, plant and equipment	(76.7)	(271.8)	(536.2)
Proceeds from sale of property, plant and equipment	0.0	0.0	0.2
Net cash used in investing activities	(76.7)	(271.8)	(536.0)
Financing activities
Proceeds from borrowings - revolving credit facility	2,129.2	2,185.0	1,695.1
Repayments of borrowings - revolving credit facility	(1,979.3)	(2,152.3)	(1,591.1)
Proceeds from borrowings - MRL revolving credit agreement	159.1	93.2	0.0
Repayments of borrowings - MRL revolving credit agreement	(172.1)	(80.2)	0.0
Proceeds from borrowings - senior notes	554.4	325.0	325.0
Repayments of borrowings - senior notes	(592.5)	(121.0)	(363.1)
Payments on finance lease obligations	(1.1)	(1.0)	(0.9)
Proceeds from inventory financing	671.3	1,712.0	2,166.0
Payments on inventory financing	(708.5)	(1,753.9)	(2,132.6)
Proceeds from sale of redeemable noncontrolling interest in subsidiary	0.0	0.0	250.0
Payments for issuance of Preferred Units	0.0	0.0	(4.4)
Repayments of borrowings - MRL Credit Facility	0.0	0.0	(347.3)
Proceeds from other financing obligations	144.7	102.0	372.9
Payments on other financing obligations	(41.5)	(30.1)	(15.6)
Debt issuance costs	(9.4)	(12.5)	(5.3)
Net cash provided by financing activities	154.3	266.2	348.7
Net increase (decrease) in cash, cash equivalents and restricted cash	31.2	(20.5)	(86.7)
Cash, cash equivalents and restricted cash at beginning of period	14.7	35.2	121.9
Cash, cash equivalents and restricted cash at end of period	45.9	14.7	35.2
Cash and cash equivalents	38.1	7.9	35.2
Restricted cash	7.8	6.8	0.0
Supplemental disclosure of cash flow information
Interest paid, net of capitalized interest	232.0	201.9	151.4
Supplemental disclosure of non-cash investing activities
Non-cash property, plant and equipment additions	$ 30.7	$ 31.3	$ 136.9