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Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In January 2014, we sold our 50.0% interest in the joint venture which holds 21-25 West 34^th Street at an implied gross valuation of $114.9 million, inclusive of the $100.0 million mortgage encumbering the property.