Summary of Significant Accounting Policies (Details 6) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair value of assets and liabilities measured at fair value on a recurring and non-recurring basis
Impairment loss on continuing operations	$ 0	$ 0	$ 0
Percentage of debt having fixed interest rates	71.60%	70.70%
Carrying value of secured debt	1,429,292,000	1,404,075,000
Assets:
Interest rate cap derivative agreements		16,000
Life insurance policy	1,198,000	1,385,000
Total assets	1,198,000	1,401,000
Robert A. Alter
Liabilities:
Number of installments to be paid out under the Retirement Benefit Agreement	10	10
Amount paid under the Retirement Benefit Agreement	800,000
Total at the end of the period
Liabilities:
Interest rate swap derivative agreements		1,066,000
Retirement benefit agreement	1,198,000	1,385,000
Total liabilities	1,198,000	2,451,000
Level 2
Assets:
Interest rate cap derivative agreements		16,000
Life insurance policy	1,198,000	1,385,000
Total assets	1,198,000	1,401,000
Liabilities:
Interest rate swap derivative agreements		1,066,000
Retirement benefit agreement	1,198,000	1,385,000
Total liabilities	1,198,000	2,451,000
Level 3
Fair value of assets and liabilities measured at fair value on a recurring and non-recurring basis
Weighted average cost of debt (as a percent)	4.50%	5.00%
Fair value of debt	1,400,000,000	1,400,000,000
JW Marriott New Orleans | Level 2
Liabilities:
Number of interest rate swap derivative agreements		1
Interest rate swap derivative agreements		1,100,000
Doubletree Guest Suites Times Square and Hilton San Diego Bayfront hotel | Level 2
Assets:
Number of interest rate cap derivative agreements	2	2
Interest rate cap derivative agreements		$ 16,000