Annual report pursuant to Section 13 and 15(d)

Variable Interest Entities (Details)

v3.3.1.900
Variable Interest Entities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets $ 3,237,918 $ 1,754,943
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 2,017,677 1,219,821
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets 1,852,430 3,048,785
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount 1,852,430 3,048,785
Loans Held-for-Investment, Residential Mortgages [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 3,173,727 1,744,746
Commercial Real Estate Assets [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 45,698 0
Accrued Income Receivable [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 18,493 10,197
Assets, Total [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Assets 3,237,918 1,754,943
Borrowings [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 2,000,110 1,209,663
Accrued Liabilities [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 5,943 3,678
Accounts Payable [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities 11,624 6,480
Liabilities, Total [Member]    
Variable Interest Entity [Line Items]    
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities $ 2,017,677 $ 1,219,821