Segment Information - Summarized Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting
Revenue from contracts with customers	$ 1,768.2	$ 2,643.0	$ 5,042.6	$ 7,498.0
Realized gain (loss) on derivatives	0.9	2.3	20.2	(44.6)
Change in fair value of interest rate swaps	(22.9)	18.2	(19.0)	38.4
Total revenues	1,746.2	2,663.5	5,043.8	7,491.8
Cost of sales, exclusive of operating expenses and depreciation and amortization	(1,244.7)	(2,131.1)	(3,535.6)	(6,030.7)
Adjusted gross margin	501.5	532.4	1,508.2	1,461.1
Operating expenses	(143.3)	(136.8)	(412.5)	(386.6)
Segment profit	358.2	395.6	1,095.7	1,074.5
Depreciation and amortization	(163.8)	(162.6)	(489.5)	(474.5)
Gross margin	194.4	233.0	606.2	600.0
Impairments	(20.7)	0.0	(20.7)	0.0
Gain on disposition of assets	0.6	0.8	1.8	(3.9)
General and administrative	(30.4)	(34.5)	(87.8)	(91.9)
Interest expense, net of interest income	(67.9)	(60.4)	(205.2)	(171.0)
Gain on extinguishment of debt	0.0	(5.7)	0.0	(6.2)
Income (loss) from unconsolidated affiliate investments	1.0	(1.7)	(3.7)	(4.0)
Other income (expense)	(0.6)	0.3	(0.2)	0.6
Income before non-controlling interest and income taxes	76.4	131.8	290.4	323.6
Capital expenditures	136.5	94.5	355.3	217.0
Permian
Segment Reporting
Revenue from contracts with customers	773.8	1,060.7	2,000.0	3,072.1
Realized gain (loss) on derivatives	(4.4)	1.3	(3.0)	(11.3)
Change in fair value of interest rate swaps	(7.4)	2.4	(9.0)	9.0
Total revenues	762.0	1,064.4	1,988.0	3,069.8
Cost of sales, exclusive of operating expenses and depreciation and amortization	(604.3)	(903.3)	(1,541.3)	(2,628.0)
Adjusted gross margin	157.7	161.1	446.7	441.8
Operating expenses	(55.0)	(49.7)	(156.2)	(145.3)
Segment profit	102.7	111.4	290.5	296.5
Depreciation and amortization	(42.1)	(36.8)	(123.6)	(110.6)
Gross margin	60.6	74.6	166.9	185.9
Impairments	0.0		0.0
Gain on disposition of assets	0.0	0.0	0.1	0.0
General and administrative	0.0	0.0	0.0	0.0
Interest expense, net of interest income	0.0	0.0	0.0	0.0
Gain on extinguishment of debt		0.0		0.0
Income (loss) from unconsolidated affiliate investments	0.0	0.0	0.0	0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income before non-controlling interest and income taxes	60.6	74.6	167.0	185.9
Capital expenditures	82.9	61.7	191.2	130.6
Louisiana
Segment Reporting
Revenue from contracts with customers	978.1	1,645.1	2,924.9	4,803.2
Realized gain (loss) on derivatives	0.0	3.3	(0.6)	(5.8)
Change in fair value of interest rate swaps	(6.0)	4.0	3.2	10.2
Total revenues	972.1	1,652.4	2,927.5	4,807.6
Cost of sales, exclusive of operating expenses and depreciation and amortization	(850.0)	(1,517.8)	(2,538.9)	(4,425.7)
Adjusted gross margin	122.1	134.6	388.6	381.9
Operating expenses	(35.0)	(37.6)	(100.6)	(105.4)
Segment profit	87.1	97.0	288.0	276.5
Depreciation and amortization	(36.3)	(39.7)	(111.5)	(114.6)
Gross margin	50.8	57.3	176.5	161.9
Impairments	(20.7)		(20.7)
Gain on disposition of assets	0.0	0.1	0.2	0.3
General and administrative	0.0	0.0	0.0	0.0
Interest expense, net of interest income	0.0	0.0	0.0	0.0
Gain on extinguishment of debt		0.0		0.0
Income (loss) from unconsolidated affiliate investments	0.0	0.0	0.0	0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income before non-controlling interest and income taxes	30.1	57.4	156.0	162.2
Capital expenditures	23.1	6.5	53.1	18.5
Oklahoma
Segment Reporting
Revenue from contracts with customers	291.5	433.2	868.6	1,278.2
Realized gain (loss) on derivatives	0.9	0.6	4.8	(18.9)
Change in fair value of interest rate swaps	(4.1)	9.5	(3.5)	10.6
Total revenues	288.3	443.3	869.9	1,269.9
Cost of sales, exclusive of operating expenses and depreciation and amortization	(157.1)	(315.3)	(481.6)	(913.4)
Adjusted gross margin	131.2	128.0	388.3	356.5
Operating expenses	(26.6)	(23.5)	(78.3)	(67.6)
Segment profit	104.6	104.5	310.0	288.9
Depreciation and amortization	(54.6)	(51.5)	(163.1)	(154.7)
Gross margin	50.0	53.0	146.9	134.2
Impairments	0.0		0.0
Gain on disposition of assets	0.5	0.1	0.8	0.5
General and administrative	0.0	0.0	0.0	0.0
Interest expense, net of interest income	0.0	0.0	0.0	0.0
Gain on extinguishment of debt		0.0		0.0
Income (loss) from unconsolidated affiliate investments	0.0	0.0	0.0	0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income before non-controlling interest and income taxes	50.5	53.1	147.7	134.7
Capital expenditures	11.5	18.2	59.3	45.1
North Texas
Segment Reporting
Revenue from contracts with customers	185.7	276.2	534.2	794.9
Realized gain (loss) on derivatives	4.4	(2.9)	19.0	(8.6)
Change in fair value of interest rate swaps	(5.4)	2.3	(9.7)	8.6
Total revenues	184.7	275.6	543.5	794.9
Cost of sales, exclusive of operating expenses and depreciation and amortization	(94.2)	(166.9)	(258.9)	(514.0)
Adjusted gross margin	90.5	108.7	284.6	280.9
Operating expenses	(26.7)	(26.0)	(77.4)	(68.3)
Segment profit	63.8	82.7	207.2	212.6
Depreciation and amortization	(29.3)	(33.4)	(87.1)	(90.5)
Gross margin	34.5	49.3	120.1	122.1
Impairments	0.0		0.0
Gain on disposition of assets	0.1	0.6	0.7	(4.7)
General and administrative	0.0	0.0	0.0	0.0
Interest expense, net of interest income	0.0	0.0	0.0	0.0
Gain on extinguishment of debt		0.0		0.0
Income (loss) from unconsolidated affiliate investments	0.0	0.0	0.0	0.0
Other income (expense)	0.0	0.0	0.0	0.0
Income before non-controlling interest and income taxes	34.6	49.9	120.8	117.4
Capital expenditures	17.0	6.5	46.9	17.7
Corporate
Segment Reporting
Revenue from contracts with customers	(460.9)	(772.2)	(1,285.1)	(2,450.4)
Realized gain (loss) on derivatives	0.0	0.0	0.0	0.0
Change in fair value of interest rate swaps	0.0	0.0	0.0	0.0
Total revenues	(460.9)	(772.2)	(1,285.1)	(2,450.4)
Cost of sales, exclusive of operating expenses and depreciation and amortization	460.9	772.2	1,285.1	2,450.4
Adjusted gross margin	0.0	0.0	0.0	0.0
Operating expenses	0.0	0.0	0.0	0.0
Segment profit	0.0	0.0	0.0	0.0
Depreciation and amortization	(1.5)	(1.2)	(4.2)	(4.1)
Gross margin	(1.5)	(1.2)	(4.2)	(4.1)
Impairments	0.0		0.0
Gain on disposition of assets	0.0	0.0	0.0	0.0
General and administrative	(30.4)	(34.5)	(87.8)	(91.9)
Interest expense, net of interest income	(67.9)	(60.4)	(205.2)	(171.0)
Gain on extinguishment of debt		(5.7)		(6.2)
Income (loss) from unconsolidated affiliate investments	1.0	(1.7)	(3.7)	(4.0)
Other income (expense)	(0.6)	0.3	(0.2)	0.6
Income before non-controlling interest and income taxes	(99.4)	(103.2)	(301.1)	(276.6)
Capital expenditures	2.0	1.6	4.8	5.1
Product sales
Segment Reporting
Revenue from contracts with customers	1,488.1	2,384.4	4,203.7	6,798.8
Product sales | Permian
Segment Reporting
Revenue from contracts with customers	473.3	642.5	1,160.5	1,764.7
Product sales | Louisiana
Segment Reporting
Revenue from contracts with customers	926.4	1,548.2	2,766.4	4,531.7
Product sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	65.0	149.5	225.1	394.9
Product sales | North Texas
Segment Reporting
Revenue from contracts with customers	23.4	44.2	51.7	107.5
Product sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Natural gas sales
Segment Reporting
Revenue from contracts with customers	299.7	902.7	860.6	2,132.4
Natural gas sales | Permian
Segment Reporting
Revenue from contracts with customers	132.9	361.6	338.6	880.2
Natural gas sales | Louisiana
Segment Reporting
Revenue from contracts with customers	101.8	383.8	326.1	868.2
Natural gas sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	42.3	114.5	142.0	277.9
Natural gas sales | North Texas
Segment Reporting
Revenue from contracts with customers	22.7	42.8	53.9	106.1
Natural gas sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
NGL sales
Segment Reporting
Revenue from contracts with customers	740.5	1,070.7	2,253.5	3,392.6
NGL sales | Permian
Segment Reporting
Revenue from contracts with customers	(4.8)	0.2	(4.4)	0.2
NGL sales | Louisiana
Segment Reporting
Revenue from contracts with customers	746.6	1,067.4	2,253.1	3,382.6
NGL sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	(2.0)	1.7	7.0	8.4
NGL sales | North Texas
Segment Reporting
Revenue from contracts with customers	0.7	1.4	(2.2)	1.4
NGL sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude oil and condensate sales
Segment Reporting
Revenue from contracts with customers	447.9	411.0	1,089.6	1,273.8
Crude oil and condensate sales | Permian
Segment Reporting
Revenue from contracts with customers	345.2	280.7	826.3	884.3
Crude oil and condensate sales | Louisiana
Segment Reporting
Revenue from contracts with customers	78.0	97.0	187.2	280.9
Crude oil and condensate sales | Oklahoma
Segment Reporting
Revenue from contracts with customers	24.7	33.3	76.1	108.6
Crude oil and condensate sales | North Texas
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude oil and condensate sales | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Product sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Product sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	247.4	380.3	689.0	1,207.6
Product sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	5.3	46.3	15.0	126.3
Product sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	126.0	203.2	346.3	654.2
Product sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	81.0	142.3	232.2	462.0
Product sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(459.7)	(772.1)	(1,282.5)	(2,450.1)
NGL sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
NGL sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	247.4	380.3	689.0	1,207.6
NGL sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	5.3	46.3	15.0	126.3
NGL sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	126.0	203.2	346.3	653.9
NGL sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	78.7	139.7	224.4	452.4
NGL sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(457.4)	(769.5)	(1,274.7)	(2,440.2)
Crude oil and condensate sales—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude oil and condensate sales—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude oil and condensate sales—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude oil and condensate sales—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.3
Crude oil and condensate sales—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	2.3	2.6	7.8	9.6
Crude oil and condensate sales—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(2.3)	(2.6)	(7.8)	(9.9)
Midstream services
Segment Reporting
Revenue from contracts with customers	280.1	258.6	838.9	699.2
Midstream services | Permian
Segment Reporting
Revenue from contracts with customers	53.1	37.9	150.5	99.8
Midstream services | Louisiana
Segment Reporting
Revenue from contracts with customers	46.4	50.5	143.5	145.0
Midstream services | Oklahoma
Segment Reporting
Revenue from contracts with customers	100.5	80.5	297.2	229.0
Midstream services | North Texas
Segment Reporting
Revenue from contracts with customers	80.1	89.7	247.7	225.4
Midstream services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Gathering and transportation
Segment Reporting
Revenue from contracts with customers	160.3	138.8	470.9	371.1
Gathering and transportation | Permian
Segment Reporting
Revenue from contracts with customers	30.5	20.9	83.1	54.4
Gathering and transportation | Louisiana
Segment Reporting
Revenue from contracts with customers	19.5	22.1	58.2	54.1
Gathering and transportation | Oklahoma
Segment Reporting
Revenue from contracts with customers	60.5	45.9	175.8	133.3
Gathering and transportation | North Texas
Segment Reporting
Revenue from contracts with customers	49.8	49.9	153.8	129.3
Gathering and transportation | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Processing
Segment Reporting
Revenue from contracts with customers	81.9	82.4	245.1	210.4
Processing | Permian
Segment Reporting
Revenue from contracts with customers	15.3	11.1	43.8	28.8
Processing | Louisiana
Segment Reporting
Revenue from contracts with customers	0.5	0.4	0.9	1.2
Processing | Oklahoma
Segment Reporting
Revenue from contracts with customers	36.2	31.4	107.9	85.4
Processing | North Texas
Segment Reporting
Revenue from contracts with customers	29.9	39.5	92.5	95.0
Processing | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
NGL services
Segment Reporting
Revenue from contracts with customers	20.6	19.6	65.9	62.0
NGL services | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
NGL services | Louisiana
Segment Reporting
Revenue from contracts with customers	20.5	19.5	65.7	61.8
NGL services | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
NGL services | North Texas
Segment Reporting
Revenue from contracts with customers	0.1	0.1	0.2	0.2
NGL services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Crude services
Segment Reporting
Revenue from contracts with customers	15.1	16.9	50.0	53.1
Crude services | Permian
Segment Reporting
Revenue from contracts with customers	5.6	5.7	18.6	16.0
Crude services | Louisiana
Segment Reporting
Revenue from contracts with customers	5.7	8.1	17.8	26.7
Crude services | Oklahoma
Segment Reporting
Revenue from contracts with customers	3.7	3.0	13.1	9.9
Crude services | North Texas
Segment Reporting
Revenue from contracts with customers	0.1	0.1	0.5	0.5
Crude services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Other services
Segment Reporting
Revenue from contracts with customers	2.2	0.9	7.0	2.6
Other services | Permian
Segment Reporting
Revenue from contracts with customers	1.7	0.2	5.0	0.6
Other services | Louisiana
Segment Reporting
Revenue from contracts with customers	0.2	0.4	0.9	1.2
Other services | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.1	0.2	0.4	0.4
Other services | North Texas
Segment Reporting
Revenue from contracts with customers	0.2	0.1	0.7	0.4
Other services | Corporate
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Midstream services—related parties
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Midstream services—related parties | Permian
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.0
Midstream services—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers	0.0	0.1	0.0	0.2
Midstream services—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers	0.0	0.0	0.0	0.1
Midstream services—related parties | North Texas
Segment Reporting
Revenue from contracts with customers	1.2	0.0	2.6	0.0
Midstream services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	(1.2)	(0.1)	(2.6)	(0.3)
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	1.2		2.6
NGL services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers	$ (1.2)		$ (2.6)
Crude services—related parties
Segment Reporting
Revenue from contracts with customers				0.0
Crude services—related parties | Permian
Segment Reporting
Revenue from contracts with customers				0.0
Crude services—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers				0.0
Crude services—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers				0.1
Crude services—related parties | North Texas
Segment Reporting
Revenue from contracts with customers				0.0
Crude services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers				(0.1)
Other services—related parties
Segment Reporting
Revenue from contracts with customers		0.0		0.0
Other services—related parties | Permian
Segment Reporting
Revenue from contracts with customers		0.0		0.0
Other services—related parties | Louisiana
Segment Reporting
Revenue from contracts with customers		0.1		0.2
Other services—related parties | Oklahoma
Segment Reporting
Revenue from contracts with customers		0.0		0.0
Other services—related parties | North Texas
Segment Reporting
Revenue from contracts with customers		0.0		0.0
Other services—related parties | Corporate
Segment Reporting
Revenue from contracts with customers		$ (0.1)		$ (0.2)