Borrowed Funds	6 Months Ended
Jun. 30, 2015
Debt Disclosure [Abstract]
Borrowed Funds	Borrowed Funds We maintain discretionary uncommitted Federal Funds lines of credit with various correspondent banks, which totaled $100,000 at June 30, 2015. The interest rate we are charged on these lines of credit is priced at Fed Funds plus a spread at the time of borrowing, and is payable daily. We did not utilize these lines of credit in the three and six months ended June 30, 2015 and June 30, 2014. We established an account at the Federal Reserve Bank (“FRB”) to meet eligibility requirements for access to the Primary Credit borrowing facility at the FRB’s Discount Window (“Window”). The Primary Credit borrowing facility is a lending program available to depository institutions that are in generally sound financial condition. All borrowings at the Window must be fully collateralized. We can pledge asset-backed and mortgage-backed securities, as well as FFELP Loans and Private Education Loans, to the FRB as collateral for borrowings at the Window. Generally, collateral value is assigned based on the estimated fair value of the pledged assets. At June 30, 2015 and December 31, 2014, the value of our pledged collateral at the FRB totaled $1.5 billion and $1.4 billion, respectively. The interest rate charged to us is the discount rate set by the FRB. We did not utilize this facility in the three and six months ended June 30, 2015 and June 30, 2014.

Borrowed Funds

We maintain discretionary uncommitted Federal Funds lines of credit with various correspondent banks, which totaled $100,000 at June 30, 2015. The interest rate we are charged on these lines of credit is priced at Fed Funds plus a spread at the time of borrowing, and is payable daily. We did not utilize these lines of credit in the three and six months ended June 30, 2015 and June 30, 2014.

We established an account at the Federal Reserve Bank (“FRB”) to meet eligibility requirements for access to the Primary Credit borrowing facility at the FRB’s Discount Window (“Window”). The Primary Credit borrowing facility is a lending program available to depository institutions that are in generally sound financial condition. All borrowings at the Window must be fully collateralized. We can pledge asset-backed and mortgage-backed securities, as well as FFELP Loans and Private Education Loans, to the FRB as collateral for borrowings at the Window. Generally, collateral value is assigned based on the estimated fair value of the pledged assets. At June 30, 2015 and December 31, 2014, the value of our pledged collateral at the FRB totaled $1.5 billion and $1.4 billion, respectively. The interest rate charged to us is the discount rate set by the FRB. We did not utilize this facility in the three and six months ended June 30, 2015 and June 30, 2014.