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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On May 14, 2013, we announced that Schneider Power had closed on the sale of its 1.6 Megawatt (MW) Providence Bay operational wind farm for a purchase price of CAD 406,000 and the assumption of approximately CAD 1,066,826 of bank debt and certain other project related liabilities. In addition, we previously announced that Schneider Power has entered into a separate non-binding letter of intent with an unrelated third party for the sale of Schneider Power's 10.0 MW Trout Creek wind farm development project and certain other Schneider Power development projects and also received formal offers and letters of interest for Schneider Power's 10.0 MW Zephyr operational wind farm.