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Rental Equipment, Property and Equipment - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) compressor	Dec. 31, 2020 USD ($) compressor
Property, Plant and Equipment [Line Items]
Depreciation | $	$ 25,229	$ 25,073
Number of units retired | compressor	263
Retirement of rental equipment | $	$ 3,096	291
Rental Equipment
Property, Plant and Equipment [Line Items]
Depreciation | $	$ 22,900	22,700
Number of rental fleet | compressor	65
Number of repurchased from customer | compressor	35
Property, Plant, and Equipment, Excluding Rental Equipment
Property, Plant and Equipment [Line Items]
Depreciation | $	$ 2,400	$ 2,300
Rental Compressor Unit
Property, Plant and Equipment [Line Items]
Number of units retired | compressor		216
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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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-Publisher FASB
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Loss recognized as a result of the initial and subsequent write-down of a long-lived asset's carrying amount to fair value.

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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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