Property, Plant and Mine Development - Additional Information (Details) $ in Thousands		3 Months Ended
	Mar. 21, 2018 USD ($) transload	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Property, Plant and Equipment
Depreciation expense		$ 28,400	$ 34,200
Impairment of property, plant and equipment		10,300
Gain on sale of transload facilities		419	(113)
Permian, Eagle Ford, and Appalachian Basins | Disposal Group, Disposed of by Sale, Not Discontinued Operations | CIG Logistics
Property, Plant and Equipment
Number of transload facilities sold | transload	3
Total consideration received on sale of transload facilities	$ 86,100
Liabilities assumed by buyer on sale of transload facilities	2,200
Cash consideration received on sale of transload facilities	83,900
Gain on sale of transload facilities	5,800
Consideration received allocated to asset retirement obligations liabilities of transload facilities	2,100
Equipment note assumed the buyer on sale of transload facilities	100
Consideration allocated to vendor incentives in sale of transload facilities	60,300
Permian, Eagle Ford, and Appalachian Basins | Disposal Group, Disposed of by Sale, Not Discontinued Operations | CIG Logistics | Accounts payables and accrued liabilities
Property, Plant and Equipment
Consideration allocated to vendor incentives in sale of transload facilities		21,100
Machinery and equipment
Property, Plant and Equipment
Aggregate cost of assets acquired under finance leases		300		$ 300
Accumulated amortization of assets acquired under finance leases		200		$ 200
Mining property and mine development
Property, Plant and Equipment
Interest cost capitalized in property, plant and mine development		$ 33	$ 1,000
Transload Facilities | Permian, Eagle Ford, and Appalachian Basins | Disposal Group, Disposed of by Sale, Not Discontinued Operations | CIG Logistics
Property, Plant and Equipment
Consideration received allocated to fair value of transload facilities	25,800
Net book value of transload facilities	$ 20,000