Subsequent Events (Details) (USD $)	9 Months Ended				1 Months Ended	9 Months Ended	0 Months Ended
	Sep. 30, 2012 GuestRooms	Sep. 30, 2011	Oct. 25, 2012	Sep. 28, 2012	Oct. 25, 2012 ATMProgram [Member]	Sep. 30, 2012 ATMProgram [Member]	Oct. 25, 2012 Hotel Palomar San Francisco [Member]	Oct. 25, 2012 Hotel Acquisition [Member] Hotel Palomar San Francisco [Member] GuestRooms
Subsequent Events (Textual) [Abstract]
Total number of guest rooms	4,419							196
Acquisition price							$ 58,000,000
Acquisition, cash paid							30,800,000
Loans Assumed	0	42,000,000					27,200,000
Common shares issued, net of commissions					150,000	4,369,087
Common shares issued, net of commissions (per share)					$ 23.50	$ 23.73
April 2011 Shelf Registration Stmt Maximum	125,000,000
Proceeds from Issuance of Common Stock	218,054,000	235,980,000			3,500,000	102,100,000
Value of common shares available under ATM Program					170,000,000
Sept 2012 Shelf Registration Stmt Maximu[Line Items]			$ 170,000,000	$ 170,000,000		$ 170,000,000