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v3.20.2

Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) segment | Jun. 30, 2019 USD ($)
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 17,405 | $ 19,895 | $ 35,295 | $ 37,886
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 | $ 6,100

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