Debt (Details 3) (USD $)					0 Months Ended								9 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Term loans	Mar. 28, 2014 Mortgage loan with GE Capital Financial Inc. at 5.39%, as amended	Mar. 28, 2014 Mortgage loan with General Electric Capital Corp due April 1, 2020, as amended item	May 06, 2014 Mortgage loan with Compass Bank due May 6, 2020	May 06, 2014 Mortgage loan with Compass Bank due May 6, 2020 LIBOR	Sep. 30, 2014 Senior Unsecured Credit Facility	Sep. 30, 2014 Senior Unsecured Credit Facility Standby letters of credit	Sep. 30, 2014 Senior Unsecured Credit Facility $225 Million Revolver	May 06, 2014 Senior Unsecured Credit Facility $225 Million Revolver	Sep. 30, 2014 Senior Unsecured Credit Facility $75 Million Term Loan	Sep. 30, 2014 2014 acquisitions Mortgage loan	Jan. 09, 2014 2014 acquisitions Hilton Garden Inn Houston, TX guestroom	Jan. 09, 2014 2014 acquisitions Hilton Garden Inn Houston, TX Mortgage loan	Sep. 30, 2014 2014 acquisitions Hilton Garden Inn Houston, TX Mortgage loan	Jan. 10, 2014 2014 acquisitions Hampton Inn Santa Barbara (Goleta), CA guestroom	Jan. 10, 2014 2014 acquisitions Hampton Inn Santa Barbara (Goleta), CA Mortgage loan	Sep. 30, 2014 2014 acquisitions Hampton Inn Santa Barbara (Goleta), CA Mortgage loan	Mar. 14, 2014 2014 acquisitions DoubleTree by Hilton San Francisco, CA guestroom	Mar. 14, 2014 2014 acquisitions DoubleTree by Hilton San Francisco, CA Mortgage loan	Sep. 30, 2014 2014 acquisitions DoubleTree by Hilton San Francisco, CA Mortgage loan
Debt
Maximum borrowing capacity								$ 300,000,000		$ 225,000,000	$ 225,000,000	$ 75,000,000
Maximum increase in borrowing capacity available through accordion feature option								100,000,000
Debt outstanding	624,303,000	435,589,000	496,300,000
Number of guestrooms														182			98			210
Assumption of debt													43,172,000		17,800,000	17,846,000		12,000,000	12,037,000		13,300,000	13,289,000
Fixed interest rate (as a percent)				5.39%	5.39%										6.22%			6.133%			5.98%
Amortization period						25 years									30 years			25 years			30 years
Number of loans					2
Line of credit outstanding								203,000,000	13,800,000
Amount available for borrowing								83,200,000
Loan amount						$ 25,000,000
Variable rate basis							30-day LIBOR
Interest rate margin on variable rate basis (as a percent)							2.40%