XML 63 R30.htm IDEA: XBRL DOCUMENT

Subsequent Event Subsequent Event (Notes)	12 Months Ended
Subsequent Event Subsequent Event (Notes)	Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS On January 30, 2014, the Company closed on the second settlement of a two-part sale of a real estate portfolio which included the Company’s Jacksonville, Florida portfolio in its entirety, all of the office properties in Maryland, Southern New Jersey and the Fort Washington suburb of Philadelphia and flex properties in Minnesota for an aggregate purchase price of $697.3 million (the "Portfolio Sale"). The first settlement closed on December 24, 2013. The proceeds from the second settlement were $329.6 million and consisted of 48 properties containing an aggregate of 2.6 million square feet and 19 acres of land.