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Commercial Mortgage Loan Portfolio - Narrative (Details) - First Mortgage [Member]
1 Months Ended
Oct. 31, 2015
USD ($)
Hotel
Jun. 30, 2015
USD ($)
Mortgage Loans on Real Estate [Line Items]    
Original loan amount   $ 33,000,000
Hotel [Member]    
Mortgage Loans on Real Estate [Line Items]    
Proceeds from loans receivable $ 45,400,000  
Original loan amount $ 227,000,000  
Number of hotels in portfolio | Hotel 21