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Impairment of Assets Held for Sale (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Jan. 31, 2020
Impairment of assets held for sale | $ 37,902 |
Renewable Power Systems [Member] |  |
Non-cash impairment charge | 23,464 |
Total assets held for sale, net of valuation allowance | 22,136 |
Total liabilities held for sale | 10,186 |
Impairment of assets held for sale | 37,902 |
Renewable Power Systems [Member] | Level 3 [Member] |  |
Net assets held for sale | $ 11,950 |
Renewable Power Systems [Member] | AURELIUS Group [Member] | Subsequent Event [Member] |  |
Purchase price |  | $ 23,400

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