Segments and Related Information - Schedule of Reportable segment information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Reportable segment information
Sales	$ 1,149.4	$ 1,165.0	$ 3,204.1	$ 3,686.9
Adjusted EBITDA	75.5	127.0	220.9	326.1
Reconciling items to net income attributable to partners
Depreciation and amortization	43.7	30.2	123.7	90.7
LCM / LIFO (gain) loss	(4.5)	(0.5)	9.4	(7.7)
Gain on impairment and disposal of assets		(0.2)		(0.2)
Interest expense	58.7	41.8	163.7	136.0
Debt extinguishment costs	0.3	40.4	5.5	41.4
Unrealized (gain) loss on derivatives	36.3	(28.1)	(18.8)	47.5
RINs mark-to-market gain	(173.4)	14.3	(215.9)	92.4
Other non-recurring expenses (income)	2.4	(0.2)	35.5	2.6
Equity based compensation and other items	13.8	13.0	22.5	16.6
Income tax expense	0.5	1.5	1.4	2.8
Noncontrolling interest adjustments	(5.3)	(0.9)	(19.3)	(0.9)
Net income (loss) attributable to partners	103.0	15.7	113.2	(95.1)
Capital expenditures	48.0	212.2	269.2	408.5
PP&E, net	1,526.9	1,329.4	1,526.9	1,329.4	$ 1,482.0
External customers
Reportable segment information
Sales	1,149.4	1,165.0	3,204.1	3,686.9
Eliminations
Reportable segment information
Sales	(2.6)	(7.1)	(13.3)	(19.7)
Eliminations | Inter-segment sales
Reportable segment information
Sales	(2.6)	(7.1)	(13.3)	(19.7)
Specialty Products and Solutions
Reconciling items to net income attributable to partners
Gain on business interruption insurance recovery	7.1		9.5	13.9
Property damage insurance proceeds				4.4
Specialty Products and Solutions | Operating Segments
Reportable segment information
Sales	748.2	941.7	2,181.6	2,702.9
Adjusted EBITDA	38.7	131.7	176.1	283.3
Reconciling items to net income attributable to partners
Depreciation and amortization	19.0	15.6	54.2	47.6
LCM / LIFO (gain) loss	(4.4)	2.1	(1.7)	(1.3)
Interest expense	7.1	7.2	20.4	24.0
Unrealized (gain) loss on derivatives	26.2	(29.3)	(22.6)	41.8
RINs mark-to-market gain	(118.3)	9.2	(146.9)	60.0
Capital expenditures	25.4	15.0	65.4	45.3
PP&E, net	375.7	374.6	375.7	374.6
Specialty Products and Solutions | Operating Segments | External customers
Reportable segment information
Sales	745.7	934.6	2,168.5	2,683.2
Specialty Products and Solutions | Operating Segments | Inter-segment sales
Reportable segment information
Sales	2.5	7.1	13.1	19.7
Performance Brands
Reconciling items to net income attributable to partners
Gain on business interruption insurance recovery	3.2		8.2
Performance Brands | Operating Segments
Reportable segment information
Sales	75.3	76.4	239.7	229.7
Adjusted EBITDA	13.2	8.5	41.8	17.5
Reconciling items to net income attributable to partners
Depreciation and amortization	2.5	2.9	7.4	8.5
LCM / LIFO (gain) loss	0.1	(0.3)	2.2	(0.5)
Interest expense			0.1	1.1
Capital expenditures	0.4	0.7	1.4	1.6
PP&E, net	33.2	34.0	33.2	34.0
Performance Brands | Operating Segments | External customers
Reportable segment information
Sales	75.2	76.4	239.5	229.7
Performance Brands | Operating Segments | Inter-segment sales
Reportable segment information
Sales	0.1		0.2
Montana/Renewables
Reconciling items to net income attributable to partners
Inventory firm purchase commitment			28.4
Montana/Renewables | Operating Segments
Reportable segment information
Sales	328.5	154.0	796.1	774.0
Adjusted EBITDA	38.2	11.3	55.6	88.9
Reconciling items to net income attributable to partners
Depreciation and amortization	21.9	9.9	61.3	28.9
LCM / LIFO (gain) loss	(0.2)	(2.3)	8.9	(5.9)
Gain on impairment and disposal of assets		(0.2)		(0.2)
Interest expense	18.4	6.7	48.3	25.5
Debt extinguishment costs		38.3		38.3
Unrealized (gain) loss on derivatives	10.1	1.2	3.8	5.7
RINs mark-to-market gain	(55.1)	5.1	(69.0)	32.4
Capital expenditures	22.1	196.3	202.0	361.3
PP&E, net	1,116.0	917.7	1,116.0	917.7
Montana/Renewables | Operating Segments | External customers
Reportable segment information
Sales	328.5	154.0	796.1	774.0
Corporate | Operating Segments
Reportable segment information
Adjusted EBITDA	(14.6)	(24.5)	(52.6)	(63.6)
Reconciling items to net income attributable to partners
Depreciation and amortization	0.3	1.8	0.8	5.7
Interest expense	33.2	27.9	94.9	85.4
Debt extinguishment costs	0.3	2.1	5.5	3.1
Capital expenditures	0.1	0.2	0.4	0.3
PP&E, net	$ 2.0	$ 3.1	$ 2.0	$ 3.1