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Securities Sold Under Agreements to Repurchase | 12 Months Ended
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Dec. 31, 2013
Securities Financing Transactions Disclosures [Abstract] |
Securities Sold Under Agreements to Repurchase | Note 8. Securities Sold Under Agreements to Repurchase Repurchase agreements consist of the following:
| December 31, 2013
(Dollars in thousands) | Repurchase Amount |  | Weighted- Average Fixed Rate |  | Amortized Cost of Underlying Assets |  | Fair Value of Underlying Assets
Overnight | $ | 303,709 |  |  | 0.28 | % |  | $ | 304,263 |  |  | 312,856 |
Maturing within 30 days | 9,685 |  |  | 0.32 | % |  | 11,095 |  |  | 11,301 |
| $ | 313,394 |  |  | 0.28 | % |  | $ | 315,358 |  |  | 324,157 |
| December 31, 2012
(Dollars in thousands) | Repurchase Amount |  | Weighted- Average Fixed Rate |  | Amortized Cost of Underlying Assets |  | Fair Value of Underlying Assets
Overnight | $ | 285,349 |  |  | 0.32 | % |  | $ | 287,597 |  |  | 293,958 |
Maturing within 30 days | 4,159 |  |  | 0.50 | % |  | 4,228 |  |  | 4,306 |
| $ | 289,508 |  |  | 0.32 | % |  | $ | 291,825 |  |  | 298,264 |
The securities, consisting of U.S. government sponsored enterprises issued or guaranteed residential mortgage-backed securities, subject to agreements to repurchase, were for the same securities originally sold, and were held in custody accounts by third parties. The fair value of collateral utilized for repurchase agreements is continually monitored and additional collateral is provided as deemed appropriate.

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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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