Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 202,268		$ 199,643
Less accumulated depreciation and amortization	(115,725)		(111,607)
Property and equipment, net	86,543		88,036
Total depreciation and amortization	5,013	$ 5,053
Assets not held under finance leases
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	3,805	3,913
Assets held under finance leases
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	$ 1,208	$ 1,140
Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	2 years
Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	39 years
Tractors and trailers
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 109,643		106,558
Tractors and trailers | Assets held under finance leases
Property, Plant and Equipment [Line Items]
Less accumulated depreciation and amortization	$ (11,000)		(9,800)
Tractors and trailers | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Tractors and trailers | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	6 years
Field equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 22,904		22,851
Field equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	2 years
Field equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Finance lease ROU assets
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 22,349		22,349
Finance lease ROU assets | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	3 years
Finance lease ROU assets | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	6 years
Pipeline and related facilities
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 20,363		20,336
Pipeline and related facilities | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	20 years
Pipeline and related facilities | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	25 years
Linefill and base gas
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,922		3,922
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 16,163		16,163
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	39 years
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,880		2,060
Office equipment | Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	2 years
Office equipment | Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, useful life	5 years
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,008		2,008
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,036		$ 3,396