Segment Information - Summarized Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting
Revenue from contracts with customers	$ 1,676.9	$ 1,755.6
Realized gain (loss) on derivatives	(2.9)	13.3
Change in fair value of derivatives	(26.1)	(1.4)
Total revenues	1,647.9	1,767.5
Cost of sales, exclusive of operating expenses and depreciation and amortization	(1,150.4)	(1,271.9)
Adjusted gross margin	497.5	495.6
Operating expenses	(152.6)	(132.4)
Segment profit	344.9	363.2
Depreciation and amortization	(165.3)	(160.4)
Gross margin	179.6	202.8
Impairments	(14.2)	0.0
Gain on disposition of assets	1.7	0.4
General and administrative	(55.2)	(29.5)
Interest expense, net of interest income	(65.4)	(68.5)
Loss from unconsolidated affiliate investments	(0.8)	(0.1)
Other income	0.5	0.0
Income before non-controlling interest and income taxes	46.2	105.1
Capital expenditures	103.4	114.1
Permian
Segment Reporting
Revenue from contracts with customers	754.2	598.9
Realized gain (loss) on derivatives	(6.8)	(4.0)
Change in fair value of derivatives	(2.4)	6.3
Total revenues	745.0	601.2
Cost of sales, exclusive of operating expenses and depreciation and amortization	(582.1)	(457.1)
Adjusted gross margin	162.9	144.1
Operating expenses	(73.9)	(48.1)
Segment profit	89.0	96.0
Depreciation and amortization	(43.6)	(40.0)
Gross margin	45.4	56.0
Impairments	0.0
Gain on disposition of assets	0.0	0.0
General and administrative	0.0	0.0
Interest expense, net of interest income	0.0	0.0
Loss from unconsolidated affiliate investments	0.0	0.0
Other income	0.0
Income before non-controlling interest and income taxes	45.4	56.0
Capital expenditures	48.6	56.7
Louisiana
Segment Reporting
Revenue from contracts with customers	939.8	1,105.7
Realized gain (loss) on derivatives	6.4	7.2
Change in fair value of derivatives	(19.5)	(9.0)
Total revenues	926.7	1,103.9
Cost of sales, exclusive of operating expenses and depreciation and amortization	(789.5)	(973.9)
Adjusted gross margin	137.2	130.0
Operating expenses	(26.8)	(33.6)
Segment profit	110.4	96.4
Depreciation and amortization	(35.1)	(38.3)
Gross margin	75.3	58.1
Impairments	0.0
Gain on disposition of assets	1.7	0.1
General and administrative	0.0	0.0
Interest expense, net of interest income	0.0	0.0
Loss from unconsolidated affiliate investments	0.0	0.0
Other income	0.0
Income before non-controlling interest and income taxes	77.0	58.2
Capital expenditures	31.6	12.3
Oklahoma
Segment Reporting
Revenue from contracts with customers	264.6	312.8
Realized gain (loss) on derivatives	(1.0)	2.0
Change in fair value of derivatives	(4.1)	(1.4)
Total revenues	259.5	313.4
Cost of sales, exclusive of operating expenses and depreciation and amortization	(147.8)	(194.0)
Adjusted gross margin	111.7	119.4
Operating expenses	(26.0)	(24.7)
Segment profit	85.7	94.7
Depreciation and amortization	(56.5)	(51.9)
Gross margin	29.2	42.8
Impairments	0.0
Gain on disposition of assets	0.0	0.2
General and administrative	0.0	0.0
Interest expense, net of interest income	0.0	0.0
Loss from unconsolidated affiliate investments	0.0	0.0
Other income	0.0
Income before non-controlling interest and income taxes	29.2	43.0
Capital expenditures	11.8	25.7
North Texas
Segment Reporting
Revenue from contracts with customers	168.6	180.9
Realized gain (loss) on derivatives	(1.5)	8.1
Change in fair value of derivatives	(0.1)	2.7
Total revenues	167.0	191.7
Cost of sales, exclusive of operating expenses and depreciation and amortization	(81.3)	(89.6)
Adjusted gross margin	85.7	102.1
Operating expenses	(25.9)	(26.0)
Segment profit	59.8	76.1
Depreciation and amortization	(28.5)	(28.8)
Gross margin	31.3	47.3
Impairments	(14.2)
Gain on disposition of assets	0.0	0.1
General and administrative	0.0	0.0
Interest expense, net of interest income	0.0	0.0
Loss from unconsolidated affiliate investments	0.0	0.0
Other income	0.0
Income before non-controlling interest and income taxes	17.1	47.4
Capital expenditures	10.5	18.1
Corporate
Segment Reporting
Revenue from contracts with customers	(450.3)	(442.7)
Realized gain (loss) on derivatives	0.0	0.0
Change in fair value of derivatives	0.0	0.0
Total revenues	(450.3)	(442.7)
Cost of sales, exclusive of operating expenses and depreciation and amortization	450.3	442.7
Adjusted gross margin	0.0	0.0
Operating expenses	0.0	0.0
Segment profit	0.0	0.0
Depreciation and amortization	(1.6)	(1.4)
Gross margin	(1.6)	(1.4)
Impairments	0.0
Gain on disposition of assets	0.0	0.0
General and administrative	(55.2)	(29.5)
Interest expense, net of interest income	(65.4)	(68.5)
Loss from unconsolidated affiliate investments	(0.8)	(0.1)
Other income	0.5
Income before non-controlling interest and income taxes	(122.5)	(99.5)
Capital expenditures	0.9	1.3
Product sales
Segment Reporting
Revenue from contracts with customers	1,405.0	1,476.3
Product sales | Permian
Segment Reporting
Revenue from contracts with customers	434.2	316.4
Product sales | Louisiana
Segment Reporting
Revenue from contracts with customers	887.7	1,046.3
Product sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	62.7	100.1
Product sales | North Texas
Segment Reporting
Revenue from contracts with customers	20.4	13.5
Product sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Natural gas sales
Segment Reporting
Revenue from contracts with customers	281.5	342.4
Natural gas sales | Permian
Segment Reporting
Revenue from contracts with customers	104.2	129.3
Natural gas sales | Louisiana
Segment Reporting
Revenue from contracts with customers	119.6	131.8
Natural gas sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	32.8	66.8
Natural gas sales | North Texas
Segment Reporting
Revenue from contracts with customers	24.9	14.5
Natural gas sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL sales
Segment Reporting
Revenue from contracts with customers	755.7	865.9
NGL sales | Permian
Segment Reporting
Revenue from contracts with customers	(6.6)	0.4
NGL sales | Louisiana
Segment Reporting
Revenue from contracts with customers	768.1	857.9
NGL sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	(1.0)	8.6
NGL sales | North Texas
Segment Reporting
Revenue from contracts with customers	(4.8)	(1.0)
NGL sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales
Segment Reporting
Revenue from contracts with customers	367.5	268.0
Crude oil and condensate sales | Permian
Segment Reporting
Revenue from contracts with customers	336.6	186.7
Crude oil and condensate sales | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	56.6
Crude oil and condensate sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	30.9	24.7
Crude oil and condensate sales | North Texas
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Other
Segment Reporting
Revenue from contracts with customers	0.3
Other | Permian
Segment Reporting
Revenue from contracts with customers	0.0
Other | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0
Other | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0
Other | North Texas
Segment Reporting
Revenue from contracts with customers	0.3
Other | Corporate
Segment Reporting
Revenue from contracts with customers	0.0
Product sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Product sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	257.6	237.5
Product sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	9.6	4.4
Product sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	108.7	118.0
Product sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	73.9	82.2
Product sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(449.8)	(442.1)
Product sales, Natural gas sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0
Product sales, Natural gas sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0
Product sales, Natural gas sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.1
Product sales, Natural gas sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0
Product sales, Natural gas sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	0.0
Product sales, Natural gas sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(0.1)
NGL sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	257.6	237.5
NGL sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	9.5	4.4
NGL sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	108.7	118.0
NGL sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	70.6	79.5
NGL sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(446.4)	(439.4)
Crude oil and condensate sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude oil and condensate sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	3.3	2.7
Crude oil and condensate sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(3.3)	(2.7)
Midstream services
Segment Reporting
Revenue from contracts with customers	271.9	279.3
Midstream services | Permian
Segment Reporting
Revenue from contracts with customers	62.4	45.0
Midstream services | Louisiana
Segment Reporting
Revenue from contracts with customers	42.5	55.0
Midstream services | Oklahoma
Segment Reporting
Revenue from contracts with customers	93.2	94.7
Midstream services | North Texas
Segment Reporting
Revenue from contracts with customers	73.8	84.6
Midstream services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Gathering and transportation
Segment Reporting
Revenue from contracts with customers	165.5	150.2
Gathering and transportation | Permian
Segment Reporting
Revenue from contracts with customers	39.7	23.3
Gathering and transportation | Louisiana
Segment Reporting
Revenue from contracts with customers	24.4	20.0
Gathering and transportation | Oklahoma
Segment Reporting
Revenue from contracts with customers	55.8	54.8
Gathering and transportation | North Texas
Segment Reporting
Revenue from contracts with customers	45.6	52.1
Gathering and transportation | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Processing
Segment Reporting
Revenue from contracts with customers	78.8	81.7
Processing | Permian
Segment Reporting
Revenue from contracts with customers	17.0	14.0
Processing | Louisiana
Segment Reporting
Revenue from contracts with customers	0.6	0.3
Processing | Oklahoma
Segment Reporting
Revenue from contracts with customers	33.6	35.3
Processing | North Texas
Segment Reporting
Revenue from contracts with customers	27.6	32.1
Processing | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services
Segment Reporting
Revenue from contracts with customers	17.4	27.8
NGL services | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services | Louisiana
Segment Reporting
Revenue from contracts with customers	17.3	27.8
NGL services | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services | North Texas
Segment Reporting
Revenue from contracts with customers	0.1	0.0
NGL services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Crude services
Segment Reporting
Revenue from contracts with customers	7.8	17.2
Crude services | Permian
Segment Reporting
Revenue from contracts with customers	3.8	6.0
Crude services | Louisiana
Segment Reporting
Revenue from contracts with customers	0.1	6.5
Crude services | Oklahoma
Segment Reporting
Revenue from contracts with customers	3.7	4.5
Crude services | North Texas
Segment Reporting
Revenue from contracts with customers	0.2	0.2
Crude services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Other services
Segment Reporting
Revenue from contracts with customers	2.4	2.4
Other services | Permian
Segment Reporting
Revenue from contracts with customers	1.9	1.7
Other services | Louisiana
Segment Reporting
Revenue from contracts with customers	0.1	0.4
Other services | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.1	0.1
Other services | North Texas
Segment Reporting
Revenue from contracts with customers	0.3	0.2
Other services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Midstream services—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Midstream services—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Midstream services—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Midstream services—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0
Midstream services—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	0.5	0.6
Midstream services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(0.5)	(0.6)
NGL services—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0
NGL services—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	0.5	0.6
NGL services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	$ (0.5)	$ (0.6)