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Acquisitions (Details) $ in Thousands	Mar. 01, 2018 USD ($) storage_tank underground_saltwell	Sep. 15, 2017 USD ($) mi	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Intangible assets			$ 146,596	$ 154,038
Property, plant and equipment			$ 295,044	312,562
Big Spring Logistic Assets
Business Acquisition [Line Items]
Purchase price of asset acquisition	$ 170,800
Number of storage tanks | storage_tank	70
Number of underground saltwells | underground_saltwell	4
Excess of cash paid over carrying value	$ 98,800
Carrying value of assets acquired	72,000
Assumed asset retirement obligation	800
Capitalized acquisition costs				$ 400
Intangible assets	$ 144,200
Amortization period	20 years
Big Spring Pipeline
Business Acquisition [Line Items]
Purchase price of asset acquisition		$ 9,000
Intangible assets		$ 2,600
Length of pipeline | mi		40
Property, plant and equipment		$ 6,400

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