Summary of Significant Accounting Policies - Sale-Leaseback (Details) |
3 Months Ended | ||
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Mar. 31, 2018
USD ($)
project
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Mar. 31, 2017
USD ($)
project
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Dec. 31, 2017
USD ($)
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| Sale Leaseback Transaction [Line Items] | |||
| Number of Solar PV Projects Sold | project | 1 | ||
| Sale Price | $ 0 | $ 8,783,000 | |
| Solar Photovoltaic Projects | |||
| Sale Leaseback Transaction [Line Items] | |||
| Maximum combined funding amount | $ 100,000,000 | ||
| Number of Solar PV Projects Sold | project | 2 | ||
| Sale Price | $ 8,783,000 | ||
| Deferred Gain Recorded | 6,056,000 | 273,000 | $ 6,173,000 |
| Deferred Loss Recorded | $ 2,119,000 | 913,000 | $ 2,172,000 |
| Capital Lease Asset/Liability Recorded | 4,751,000 | ||
| Percentage of fair value threshold, integral equipment | 10.00% | ||
| Net amortization expense | $ (59,000) | $ (9,000) | |
| Solar Photovoltaic Projects | Minimum | |||
| Sale Leaseback Transaction [Line Items] | |||
| Initial Lease Term | 10 years | ||
| Lease Payment | $ 4,000 | ||
| Solar Photovoltaic Projects | Maximum | |||
| Sale Leaseback Transaction [Line Items] | |||
| Initial Lease Term | 20 years | ||
| Lease Payment | $ 407,000 | ||
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- Definition Maximum Combined Funding Amount, Sale Leaseback Transactions No definition available.
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- Definition Percentage of Fair Value Threshold, Integral Equipment No definition available.
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- Definition Sale Leaseback Transaction, Deferred Loss, Net, Total No definition available.
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- Definition Sale Leaseback Transaction, Net Amortization Expense No definition available.
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- Definition Sale Leaseback Transaction, Number of Projects Sold No definition available.
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- Definition Sale Leaseback Transaction, Term No definition available.
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- Definition The portion of the gain that will be recorded as income or a reduction in rent expense in future periods less amounts recognized in the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The net book value of the asset(s) sold in connection with the sale of the property to another party and lease back to the seller. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash inflow after closing and debt issuance costs received by a seller-lessee in a sale-leaseback recognized in financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the quarterly rental payments due under the lease entered into in connection with the transactions involving the sale of property to another party and the lease of the property back to the seller. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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