Quarterly report pursuant to Section 13 or 15(d)

Commercial Real Estate Loans Assets by Internal Risk Rating (Details)

v3.4.0.3
Commercial Real Estate Loans Assets by Internal Risk Rating (Details)
$ in Thousands
Mar. 31, 2016
USD ($)
unit
Dec. 31, 2015
USD ($)
unit
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of Instruments, Commercial Real Estate Assets | unit 20 18
Commercial Real Estate Assets [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of Instruments, Commercial Real Estate Assets | unit 20 18
Commercial Real Estate Loans Held-for-Investment, Unpaid Principal $ 750,281 $ 667,346
Commercial real estate assets $ 744,259 $ 660,953
Commercial Real Estate Assets [Member] | Internal Investment Grade [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of Instruments, Commercial Real Estate Assets | unit 20 18
Commercial Real Estate Loans Held-for-Investment, Unpaid Principal $ 750,281 $ 667,346
Commercial real estate assets $ 744,259 $ 660,953
Commercial Real Estate Assets [Member] | Internal Noninvestment Grade [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Number of Instruments, Commercial Real Estate Assets | unit 0 0
Commercial Real Estate Loans Held-for-Investment, Unpaid Principal $ 0 $ 0
Commercial real estate assets $ 0 $ 0