Property, Plant, and Equipment - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Long-lived asset and other impairments	$ 203,889,000	$ 6,279,000	$ 230,584,000
Equity investment impairment loss	29,399,000
Ranch Westex [Member]
Property, Plant and Equipment [Line Items]
Equity investment impairment loss	29,399,000
Wyoming and Utah Assets [Member]
Property, Plant and Equipment [Line Items]
Long-lived asset and other impairments	150,200,000
Wyoming and Utah Assets [Member] | Fair Value, Nonrecurring [Member] | Level-3 Inputs [Member] | Valuation, Income Approach [Member]
Property, Plant and Equipment [Line Items]
Estimated fair value	105,500,000
DJ Basin Complex and DBM Oil System [Member]
Property, Plant and Equipment [Line Items]
Long-lived asset and other impairments	$ 24,300,000
Third Creek Gathering System [Member]
Property, Plant and Equipment [Line Items]
Long-lived asset and other 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]
Long-lived asset and other 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]
Long-lived asset and other impairments			38,700,000
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]
Long-lived asset and other 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]
Long-lived asset and other impairments			23,300,000
GNB NGL Pipeline [Member]
Property, Plant and Equipment [Line Items]
Long-lived asset and other 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]
Long-lived asset and other 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