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Rental Equipment, Property and Equipment - Schedule of Rental Equipment, Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 35,665	$ 34,716
Less accumulated depreciation	(13,916)	(12,847)
Property and equipment, net	21,749	21,869
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,680	1,290
Building
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	39 years
Property and equipment, gross	$ 18,977	18,632
Building and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	39 years
Property and equipment, gross	$ 1,168	1,168
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	5 years
Property and equipment, gross	$ 2,016	2,001
Software
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	5 years
Property and equipment, gross	$ 573	573
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	7 years
Property and equipment, gross	$ 3,653	3,492
Vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	3 years
Property and equipment, gross	$ 7,598	7,560
Rental Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	383,387	380,090
Less accumulated depreciation	(175,802)	(162,348)
Property and equipment, net	207,585	217,742
Rental Equipment | Compressor units
Property, Plant and Equipment [Line Items]
Property and equipment, gross	379,623	370,961
Rental Equipment | Work-in-progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,764	$ 9,129
Minimum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	3 years
Minimum | Rental Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	15 years
Maximum
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	39 years
Maximum | Rental Equipment
Property, Plant and Equipment [Line Items]
Property and equipment, estimated useful life	25 years

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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