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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]  
Annual dividends distribution percentage to shareholders to qualify as a REIT 90.00%
Significant temporary differences or tax credits associated with our taxable REIT subsidiaries $ 0
Uncertain tax positions or unrecognized tax benefits $ 0