Favorable Lease Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Indefinite-lived Intangible Assets by Major Class [Line Items]
Favorable lease assets, net	$ 24,057	$ 34,274
Above Market Leases Ground [Member] | Boston Westin Waterfront [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying amount of the lease right	18,131	18,293
Above Market Leases Ground [Member] | Hilton Minneapolis [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying amount of the lease right	5,704	5,760
Above Market Leases Ground [Member] | Lexington Hotel New York [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying amount of the lease right	193	1,031
Above Market Leases Ground [Member] | Hilton Boston Downtown Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying amount of the lease right	29	145
Above Market Lease Rights [Member] | Boston Westin Waterfront [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Nonamortizable intangible asset	$ 0	$ 9,045