Summary of Significant Accounting Policies - Goodwill (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Management Contracts Net	$ 19,000,000	$ 13,764,000	$ 19,000,000
Management contracts net prior to impairment	46,100,000	46,100,000	46,100,000
Impairment loss on management contracts and goodwill	$ 42,000,000	$ 0	$ 41,967,000	$ 0