Property, Plant, and Equipment - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Impairments	$ 6,279,000	$ 230,584,000	$ 180,051,000
Fort Union [Member]
Property, Plant and Equipment [Line Items]
Equity investment impairment loss			3,100,000
Third Creek Gathering System [Member]
Property, Plant and Equipment [Line Items]
Impairments		125,900,000
Third Creek Gathering System [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Market Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated salvage value		1,800,000
Kitty Draw Gathering System [Member]
Property, Plant and Equipment [Line Items]
Impairments		8,100,000
Kitty Draw Gathering System [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Market Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated salvage value		0
Hilight System [Member]
Property, Plant and Equipment [Line Items]
Impairments		38,700,000	8,200,000
Hilight System [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated fair value		4,900,000
MIGC System [Member]
Property, Plant and Equipment [Line Items]
Impairments		34,600,000
MIGC System [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated fair value		15,200,000
Equipment [Member]
Property, Plant and Equipment [Line Items]
Impairments		23,300,000	21,300,000
GNB NGL Pipeline [Member]
Property, Plant and Equipment [Line Items]
Impairments		10,900,000
GNB NGL Pipeline [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated fair value		10,000,000.0
Chipeta Complex [Member]
Property, Plant and Equipment [Line Items]
Impairments		5,600,000
Chipeta Complex [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Market Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated salvage value		$ 1,500,000
Granger Complex [Member]
Property, Plant and Equipment [Line Items]
Impairments			158,800,000
Granger Complex [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated fair value			48,500,000
Granger Straddle Plant [Member]
Property, Plant and Equipment [Line Items]
Impairments			3,700,000
Granger Straddle Plant [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated salvage value			600,000
Northeast Wyoming Facility [Member]
Property, Plant and Equipment [Line Items]
Impairments			2,000,000.0
Northeast Wyoming Facility [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Market Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated salvage value			$ 400,000