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Commitments and Contingencies (Details) (USD $)
3 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
May 31, 2014
Boston Westin Waterfront [Member]
Sep. 30, 2014
Corporate and Other Expenses [Member]
Boston Westin Waterfront [Member]
Long-term Purchase Commitment [Line Items]            
Settlement amount         $ 14,000,000  
Net gain on litigation settlement 0 0 10,999,000 0 11,000,000  
Contingency fee         1,200,000  
Legal fees and other costs           $ 1,800,000