Acquisitions - Pending Acquisition Narrative (Details)
ZAR in Millions, $ in Millions |
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1 Months Ended |
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Jan. 31, 2017
USD ($)
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Jan. 31, 2017
ZAR
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Dec. 31, 2015
USD ($)
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Sep. 30, 2016
USD ($)
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Apr. 30, 2015
USD ($)
power_plant
MW
shares
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Apr. 30, 2015
ZAR
power_plant
MW
shares
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Feb. 24, 2016
MW
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Feb. 20, 2016
power_plant
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Aug. 31, 2015
USD ($)
power_plant
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Aug. 04, 2015
MW
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| Assets associated with third party sale transaction | Subsequent event |
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| Business Acquisition [Line Items] |
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| Proceeds from the Third Party Sale Transaction |
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$ 6.7
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| BioTherm |
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| Business Acquisition [Line Items] |
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| Number of projects acquired | power_plant |
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3
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3
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| Payments to acquire businesses |
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$ 74.5
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| Escrow deposit |
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$ 65.6
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| BioTherm | Scenario, forecast |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
$ 8.9
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| BioTherm | South Africa |
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| Business Acquisition [Line Items] |
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| Number of projects acquired | power_plant |
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3
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3
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3
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| Capacity of power plant | MW |
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32.6
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32.6
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| BioTherm | Non-current restricted cash |
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| Business Acquisition [Line Items] |
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| Cash deposits held for acquisitions |
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$ 20.3
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| BioTherm | Deposits for acquisitions |
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| Business Acquisition [Line Items] |
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| Cash deposits held for acquisitions |
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$ 45.3
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| BioTherm | Deposits for acquisitions | Common stock |
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| Business Acquisition [Line Items] |
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| Common stock issued in acquisition (in shares) | shares |
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544,055
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544,055
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| BioTherm | United States of America, Dollars |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
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$ 67.6
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| BioTherm | South Africa, Rand |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
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$ 6.9
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ZAR 100.4
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| BioTherm | BioTherm | United States of America, Dollars | Scenario, forecast |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
2.0
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| BioTherm | BioTherm | South Africa, Rand | Scenario, forecast |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
0.8
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ZAR 11.6
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| BioTherm | Minority interests in South African acquisition | Scenario, forecast |
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| Business Acquisition [Line Items] |
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| Payments to acquire businesses |
$ 6.1
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ZAR 88.9
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| Del Litoral | SunEdison |
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| Business Acquisition [Line Items] |
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| Capacity of power plant | MW |
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17.4
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| El Naranjal | SunEdison |
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| Business Acquisition [Line Items] |
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| Capacity of power plant | MW |
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57.4
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| Bora Bora | SunEdison |
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| Business Acquisition [Line Items] |
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| Capacity of power plant | MW |
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24.1
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| NPS Star | Subsequent event |
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| Business Acquisition [Line Items] |
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| Number of projects acquired | power_plant |
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3
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| Capacity of power plant | MW |
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17.8
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| WXA | Subsequent event |
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| Business Acquisition [Line Items] |
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| Number of projects acquired | power_plant |
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3
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| Capacity of power plant | MW |
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17.8
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