Subsequent Events/Other (Details) (USD $)	2 Months Ended	3 Months Ended		12 Months Ended			36 Months Ended	48 Months Ended
	Feb. 21, 2014	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2013
Subsequent Events/Other (Textuals) [Abstract]
Properties Contracted To Be Acquired	1
Units Contracted To Be Acquired	430
Purchase Price For Commitments To Acquire	$ 143,000,000
Business Combination, Acquisition Related Costs				300,000	7,000,000	7,700,000		94,700,000
Noncash Project Abandonment Costs				5,184,000	9,056,000	5,075,000
Other Expenses				5,500,000	16,000,000	12,800,000
Litigation Settlement, Expense					4,200,000
BreakUpFee		80,000,000	70,000,000		150,000,000
Gain on Sale of Securities, Net				(2,122,000)	0	0
Proceeds From Royalty Termination						4,500,000
Insurance Litigation Settlement proceeds						800,000
Disposal Group Corporate Housing Business Sale						4,000,000
Seller Provided Financing						2,000,000
Proceeds Received From Seller Provided Finanacing				1,500,000	300,000	200,000
Discontinued Operation Corporate Housing Business Gain Loss On Disposal Of Discontinued Operation Net Of Tax							2,900,000
Available-for-sale Securities [Member]
Subsequent Events/Other (Textuals) [Abstract]
Gain on Sale of Securities, Net				$ 2,100,000