Acquisition of Hotel Properties (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012 GuestRooms	Sep. 30, 2011	Sep. 30, 2012 GuestRooms	Sep. 30, 2011	Aug. 23, 2012	Apr. 04, 2012 Hotel Milano [Member] GuestRooms	Jul. 09, 2012 Hotel Vintage Park Seattle [Member] GuestRooms	Jul. 09, 2012 Hotel Vintage Plaza Portland [Member] GuestRooms	Jul. 09, 2012 HotelVintageParkSeattle and HotelVintagePlazaPortland [Member]	Aug. 23, 2012 W Los Angeles-Westwood [Member] GuestRooms
Business Acquisition [Line Items]
Number Of Guest Rooms	4,419		4,419			108	125	117		258
Acquisition price						$ 29.8			$ 63.0	$ 125.0
Renovation project in progress paid by seller					3.6
Proforma adjustment - Acquisition Costs	$ 0.5	$ 3.9	$ 1.0	$ 7.3