Annual report pursuant to Section 13 and 15(d)

Accrued Interest Receivable Schedule of Accounts, Notes, Loans and Financing Receivable (Details)

v3.6.0.2
Accrued Interest Receivable Schedule of Accounts, Notes, Loans and Financing Receivable (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable $ 62,751 $ 49,970
Loans Held-for-Sale, Residential Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 164 4,173
Loans Held-for-Investment, Residential Mortgages [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 18,928 18,339
Commercial Real Estate Assets [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 3,699 1,567
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 8,914 6,235
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 25,273 12,407
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 3,068 4,910
Mortgage-backed Securities, Issued by Private Enterprises [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable 2,705 2,339
Available-for-sale Securities [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Interest Receivable $ 39,960 $ 25,891