v3.5.0.2

Nature of business (Details) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2016 USD ($) state project item MW | Dec. 31, 2015 USD ($)
Nature of business |  |
Gross generating capacity of project (in MW) | MW | 2,138 |
Ownership interest in operational power generation projects (in MW) | MW | 1,500 |
Number of operational power generation projects | project | 23 |
Number of states in which power generation projects operate | state | 9 |
Number of provinces in which power generation projects operate | item | 2 |
Number of projects which are majority owned | project | 18 |
Recent accounting pronouncements adopted |  |
Long term debt and convertible debentures | $ | $ 778.9 | $ 682.7
Accounting Standards Update 2015-03 | Restatement Adjustment |  |
Recent accounting pronouncements adopted |  |
Long term debt and convertible debentures | $ | $ 19.5 | $ 42.5

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- Definition Represents the number of operational power generation projects. + References No definition available. + Details
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- Definition Represents the number of power generation projects which are wholly-owned subsidiaries of the reporting entity. + References No definition available. + Details
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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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