Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands |
Mar. 31, 2020 |
Dec. 31, 2019 |
Jan. 01, 2019 |
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| Operating Leases: | |||||||
| Operating lease assets | $ 32,444 | [1] | $ 32,791 | [1] | $ 31,639 | ||
| Current operating lease liabilities | 5,360 | [1] | 5,802 | [1] | 5,084 | ||
| Long-term portions of operating lease liabilities | 29,104 | [1] | 29,101 | [1] | 28,480 | ||
| Total operating lease liabilities | $ 34,464 | $ 34,903 | $ 33,564 | ||||
| Operating lease, weighted-average remaining lease term | 11 years | 11 years | 10 years | ||||
| Operating lease, weighted-average discount rate | 6.40% | 6.30% | 6.00% | ||||
| Financing Leases: | |||||||
| Energy assets, net | $ 35,602 | $ 36,134 | $ 38,263 | ||||
| Current portions of financing lease liabilities | 4,906 | 4,997 | 4,956 | ||||
| Long-term financing lease liabilities, less current portions and net of deferred financing fees | 23,472 | 23,500 | 28,407 | ||||
| Total financing lease liabilities | $ 28,378 | $ 28,497 | $ 33,363 | ||||
| Financing lease, weighted-average remaining lease term | 17 years | 17 years | 18 years | ||||
| Financing lease, weighted-average discount rate | 11.80% | 11.80% | 11.70% | ||||
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- Definition Financing Leases [Abstract] No definition available.
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- Definition Operating Leases [Abstract] No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for finance lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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