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Derivative Financial Instruments - Australia Fulham (Details Textual) - Fullham, Australia
AUD in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2015
USD ($)
Dec. 31, 2014
USD ($)
Sep. 30, 2015
AUD
Interest Rate Swaps [Abstract]      
Fixed interest rate on cash flow interest rate derivative     9.70%
Ineffective portion of Cash Flow Hedge interest rate swap $ 0 $ 0  
Interest Rate Swap      
Interest Rate Swaps [Abstract]      
Notional amount coincide with the terms of the non-recourse debt | AUD     AUD 50.9