Restricted Cash - Summary of Allocation of Restricted Cash (Details) - USD ($) $ in Thousands |
Oct. 31, 2020 |
Oct. 31, 2019 |
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| Restricted Cash And Investments [Abstract] | ||||||||||||
| Cash Restricted for Outstanding Letters of Credit | [1] | $ 6,543 | $ 5,733 | |||||||||
| Cash Restricted for PNC Sale-Leaseback Transactions | 15,125 | 17,934 | ||||||||||
| Cash Restricted for Crestmark Sale-Leaseback Transaction | 431 | |||||||||||
| Bridgeport Fuel Cell Park Project Debt Service and Performance Reserves | 7,549 | 4,946 | ||||||||||
| Orion Facility - Performance Reserve | [2] | 5,000 | ||||||||||
| Orion Facility - Module and Debt Service Reserves | [3] | 1,950 | ||||||||||
| Orion Facility - Project Proceeds Account | [4] | 4,243 | ||||||||||
| Other | 1,344 | 1,731 | ||||||||||
| Total Restricted Cash | 42,185 | 30,344 | ||||||||||
| Restricted Cash and Cash Equivalents - Short-Term | [5] | (9,233) | (3,473) | |||||||||
| Restricted Cash and Cash Equivalents - Long-Term | $ 32,952 | $ 26,871 | ||||||||||
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