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v3.20.2

Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) segment | Sep. 30, 2019 USD ($)
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 15,765 | $ 20,852 | $ 51,060 | $ 58,738
Number of operating segments | segment |  |  | 1 |
Minimum |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Amortization period of capitalized contract costs | 1 year |  | 1 year |
Property and equipment, estimated useful life |  |  | 3 years |
Minimum | Rental Contracts, Excluding Large Horsepower Compressors |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Rental contract term | 6 months |  | 6 months |
Maximum |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Property and equipment, estimated useful life |  |  | 39 years |
Maximum | Rental Contracts, Excluding Large Horsepower Compressors |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Rental contract term | 24 months |  | 24 months |
Maximum | Rental Contracts, Large Horsepower Compressors |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Rental contract term | 60 months |  | 60 months |
Rental Equipment | Minimum |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Property and equipment, estimated useful life |  |  | 15 years |
Rental Equipment | Maximum |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Property and equipment, estimated useful life |  |  | 25 years |
Bill and Hold Arrangement |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues |  |  | $ 852,000 | $ 9,400

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