Non Controlling Interests (Tables)

9 Months Ended

Sep. 30, 2012

Non-controlling Interests [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012			2011
Net income attributable to Winthrop Realty Trust	$	15,108	$	9,846	$	26,719		$	20,772
Decrease in Winthrop Realty Trust paid-in capital adjustments from non-controlling interests		—		—		(5,695	)		—
Changes from net income attributable to Winthrop Realty Trust and transfers from non-controlling interest	$	15,108	$	9,846	$	21,024		$	20,772