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Note 9 - Securities Sold Under Agreements to Repurchase | 6 Months Ended
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Jun. 30, 2013
Disclosure Text Block [Abstract] |
Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] | 9. Securities Sold Under Agreements to Repurchase Securities sold under agreements to repurchase were $950.0 million with a weighted average rate of 3.80% at June 30, 2013, compared to $1.3 billion with a weighted average rate of 3.84% at December 31, 2012. In 2012, the Company modified $200.0 million of securities sold under agreements to repurchase by extending the term by an additional four years on average, reducing the rate by an average of 168 basis points and removing the callable feature. In 2012, the Company prepaid securities sold under agreements to repurchase totaling $150 million with a weighted average rate of 4.43% and incurred prepayment penalties of $9.4 million. In the first six months of 2013, the Company prepaid securities sold under agreements to repurchase totaling $300 million with a weighted average rate of 3.97% and incurred prepayment penalties of $15.7 million. Five floating-to-fixed rate agreements totaling $300.0 million have initial floating rates for a period of time ranging from six months to one year, with floating rates ranging from the three-month LIBOR minus 200 basis points to the three-month LIBOR rate minus 340 basis points. Thereafter, the rates are fixed for the remainder of the term, with interest rates ranging from 4.78% to 5.07%. After the initial floating rate term, the counter parties have the right to terminate the transaction at par at the fixed rate reset date and quarterly thereafter. Nine fixed-to-floating rate agreements totaling $450.0 million have initial fixed rates ranging from 1.00% to 3.50% with initial fixed rate terms ranging from six months to 18 months. For the remaining term, the rates float at 8% minus the three-month LIBOR rate with a maximum rate ranging from 3.25% to 3.75% and minimum rate of 0.0%. After the initial fixed rate term, the counter parties have the right to terminate the transaction at par at the floating rate reset date and quarterly thereafter. The table below provides summary data for the $750 million of callable securities sold under agreements to repurchase as of June 30, 2013:
(Dollars in millions) |  | Fixed-to-floating |  |  | Floating-to-fixed |  |  | Total |
Rate type |  | Float Rate |  |  | Fixed Rate |  |  |  |  |
Rate index |  | 8% minus 3 month LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum rate |  |  | 3.75% |  |  |  | 3.50% |  |  |  | 3.50% |  |  |  | 3.53% |  |  |  | 3.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum rate |  |  | 0.0% |  |  |  | 0.0% |  |  |  | 0.0% |  |  |  | 0.0% |  |  |  | 0.0% |  |  |  |  |  |  |  |  |  |  |  |  |
No. of agreements |  |  | 1 |  |  |  | 3 |  |  |  | 3 |  |  |  | 1 |  |  |  | 1 |  |  |  | 1 |  |  |  | 4 |  |  |  | 14 |
Amount |  | $ | 50.0 |  |  | $ | 150.0 |  |  | $ | 150.0 |  |  | $ | 50.0 |  |  | $ | 50.0 |  |  | $ | 100.0 |  |  | $ | 200.0 |  |  | $ | 750.0 |
Weighted average rate |  |  | 3.75% |  |  |  | 3.50% |  |  |  | 3.50% |  |  |  | 3.53% |  |  |  | 3.25% |  |  |  | 4.78% |  |  |  | 5.00% |  |  |  | 4.07% |
Final maturity |  |  | 2014 |  |  |  | 2014 |  |  |  | 2015 |  |  |  | 2015 |  |  |  | 2015 |  |  |  | 2014 |  |  |  | 2017 |  |  |  |  |
The table below provides summary data for non-callable fixed rate securities sold under agreements to repurchase as of June 30, 2013:
Maturity |  | No. of Agreements |  |  | Amount (In thousands) |  |  | Weighted Average Interest Rate |
3 years to 5 years |  |  | 3 |  |  | $ | 150,000 |  |  |  | 2.71 | %
Over 5 years |  |  | 1 |  |  |  | 50,000 |  |  |  | 2.98 | %
Total |  |  | 4 |  |  | $ | 200,000 |  |  |  | 2.78 | %
These transactions are accounted for as collateralized financing transactions and recorded at the amounts at which the securities were sold. The Company may have to provide additional collateral for the repurchase agreements, as necessary. The underlying collateral pledged for the repurchase agreements consists of U.S. Treasury securities, U.S. government agency security debt, and mortgage-backed securities with a fair value of $1.1 billion as of June 30, 2013, and $1.4 billion as of December 31, 2012.

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- Definition The entire disclosure for repurchase agreements (also known as repos), resale agreements (also known as reverse repurchase agreements or reverse repos), securities borrowed transactions, and securities loaned transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph m -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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