Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details)

v3.3.0.814
Fair Value of Financial Instruments (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Securities Sold under Agreements to Repuchase, Long-term $ 0 $ 93,221
Assets Sold under Agreements to Repurchase, Repurchase Liability 7,982,928 12,932,463
Long-term Federal Home Loan Bank Advances $ 3,710,000  
Maturity Over One Year [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Assets Sold under Agreements to Repurchase, Repurchase Liability   $ 93,221