Favorable Lease Assets - Narrative (Details) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2015 USD ($) room	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) room	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Business Acquisition [Line Items]
Finite-lived intangible assets, amortization expense	$ 100				$ 400
Write off of assets	0			$ 0	10,461	$ 0
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Accumulated amortization	$ 2,500				$ 2,500		$ 3,000
Above Market Lease Rights [Member] | Boston Westin Waterfront [Member]
Business Acquisition [Line Items]
Impairment of favorable lease asset		$ 9,600
Above Market Lease Rights [Member] | Boston Westin Waterfront [Member] | Minimum [Member]
Business Acquisition [Line Items]
Number of room hotel for development for which favorable lease assets are owned (in rooms) | room	320				320
Above Market Lease Rights [Member] | Boston Westin Waterfront [Member] | Maximum [Member]
Business Acquisition [Line Items]
Number of room hotel for development for which favorable lease assets are owned (in rooms) | room	350				350
Above Market Lease Rights [Member] | Boston Westin Waterfront [Member] | Prepaid Expenses and Other Assets [Member]
Business Acquisition [Line Items]
Write off of assets		$ 600
Above Market Leases Ground [Member] | Lexington Hotel New York [Member]
Business Acquisition [Line Items]
Impairment of favorable lease asset			$ 800