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Securities Available-For-Sale | 12 Months Ended
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Dec. 31, 2013
Securities [Abstract] |
Securities Available-For-Sale | (3)Securities Available-for-Sale The following is a comparative summary of mortgage-backed securities and other securities available-for-sale at December 31, 2013 and 2012 (in thousands):
| 2013
|  |  | Gross |  | Gross |  | Estimated
| Amortized |  | unrealized |  | unrealized |  | fair
| cost |  | gains |  | losses |  | value
Mortgage-backed securities: |  |  |  |  |  |  |
Pass-through certificates: |  |  |  |  |  |  |
Government sponsored enterprises (GSE) | $ 366,884 |  | $ 8,573 |  | $ 5,113 |  | $ 370,344
Real estate mortgage investment conduits (REMICs): |  |  |  |  |  |  |
GSE | 497,575 |  | 1,699 |  | 14,047 |  | 485,227
Non-GSE | 4,474 |  | 126 |  | 48 |  | 4,552
| 868,933 |  | 10,398 |  | 19,208 |  | 860,123
Other securities: |  |  |  |  |  |  |
Equity investments-mutual funds | 510 |  | - |  | - |  | 510
Corporate bonds | 76,491 |  | 66 |  | 105 |  | 76,452
| 77,001 |  | 66 |  | 105 |  | 76,962
Total securities available-for-sale | $ 945,934 |  | $ 10,464 |  | $ 19,313 |  | $ 937,085
| 2012
|  |  | Gross |  | Gross |  | Estimated
| Amortized |  | unrealized |  | unrealized |  | fair
| cost |  | gains |  | losses |  | value
Mortgage-backed securities: |  |  |  |  |  |  |
Pass-through certificates: |  |  |  |  |  |  |
GSE | $ 456,441 |  | $ 22,996 |  | $ 99 |  | $ 479,338
Real estate mortgage investment conduits (REMICs): |  |  |  |  |  |  |
GSE | 694,087 |  | 7,092 |  | 62 |  | 701,117
Non-GSE | 7,543 |  | 266 |  | 33 |  | 7,776
| 1,158,071 |  | 30,354 |  | 194 |  | 1,188,231
Other securities: |  |  |  |  |  |  |
Equity investments-mutual funds | 12,998 |  | — |  | — |  | 12,998
Corporate bonds | 73,708 |  | 694 |  | — |  | 74,402
| 86,706 |  | 694 |  | — |  | 87,400
Total securities available-for-sale | $ 1,244,777 |  | $ 31,048 |  | $ 194 |  | $ 1,275,631
The following is a summary of the expected maturity distribution of debt securities available-for-sale other than mortgage‑backed securities at December 31, 2013 (in thousands):
Available-for-sale | Amortized cost |  | Estimated fair value
Due in one year or less | $ - |  | $ -
Due after one year through five years | 76,491 |  | 76,452
| $ 76,491 |  | $ 76,452
Expected maturities on mortgage‑backed securities will differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. Certain securities available-for-sale are pledged to secure borrowings under Pledge Agreements and Repurchase Agreements and for other purposes required by law. At December 31, 2013, and December 31, 2012, securities available-for-sale with a carrying value of $14.4 million and $14.3 million, respectively, were pledged to secure deposits. See Note 8 for further discussion regarding securities pledged for borrowings. For the year ende d December 31, 2013, the Company had gross proceeds of $259.6 million on sales of securities available-for-sale with gross realized gains and gross realized losses of approxim ately $3.1 million and $128,000, respectively. For the year ende d December 31, 2012, the Company had gross proceeds of $207.7 million on sales of securities available-for-sale with gross realized gains and gross realized losses of approxim ately $3.0 million and $490,000, respectively. For the year ended December 31, 2011, the Com pany had gross proceeds of $182.7 million on sales of securities available-for-sale with gross realized gains and gross realized losses of approximately $2.9 million and $177,000, respectively. The Company routinely sells securities when market pricing presents, in management’s assessment, an economic benefit that outweighs holding such security, and when smaller balance securities become cost prohibitive to carry. The Company recognized in earnings other-than-temporary impairment charges of $434,000 during the year ended December 31, 2013, related to one equity investment in a mutual fund. The Company recognized in earnings other-than-temporary impairment charges of $24,000 during the year ended December 31, 2012, related to one equity investment in a mutual fund. The Company recognized other-than-temporary impairment charges of $1.2 million during the year ended December 31, 2011, related to one equity investment in a mutual fund and two private label mortgage-backed securities. The Company recognized the credit component of $409,000 in earnings and the non-credit component of $743,000 as a component of accumulated other comprehensive income, net of tax. The following is a rollforward of 2013, 2012, and 2011 activity related to the credit component of other-than-temporary impairment recognized on debt securities in pre-tax earnings, for which a portion of other-than-temporary impairment was recognized in accumulated other comprehensive income (in thousands):
| 2013 |  | 2012 |  | 2011
Balance, beginning of year | $ - |  | $ 578 |  | $ 330
Additions to the credit component on debt securities in which other-than-temporary |  |  |  |  |
impairment was not previously recognized | - |  | - |  | 248
Reductions due to sales | - |  | (578) |  | -
Cumulative pre-tax credit losses, end of year | $ - |  | $ - |  | $ 578
Gross unrealized losses on mortgage-backed securities, equity securities, agency bonds, and corporate bonds available-for-sale, and the estimated fair value of the related securities, aggregated by security category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2013 and 2012, were as follows (in thousands):
| December 31, 2013
| Less than 12 months |  | 12 months or more |  | Total
| Unrealized |  | Estimated |  | Unrealized |  | Estimated |  | Unrealized |  | Estimated
| losses |  | fair value |  | losses |  | fair value |  | losses |  | fair value
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |
Pass-through certificates: |  |  |  |  |  |  |  |  |  |  |
GSE | $ 5,087 |  | $ 150,473 |  | $ 26 |  | $ 4,482 |  | $ 5,113 |  | $ 154,955
REMICs: |  |  |  |  |  |  |  |  |  |  |
GSE | 12,923 |  | 283,419 |  | 1,124 |  | 44,606 |  | 14,047 |  | 328,025
Non-GSE | 23 |  | 1,092 |  | 25 |  | 442 |  | 48 |  | 1,534
Other securities: |  |  |  |  |  |  |  |  |  |  |
Corporate bonds | 105 |  | 44,763 |  | - |  | - |  | 105 |  | 44,763
Total | $ 18,138 |  | $ 479,747 |  | $ 1,175 |  | $ 49,530 |  | $ 19,313 |  | $ 529,277
| December 31, 2012
| Less than 12 months |  | 12 months or more |  | Total
| Unrealized |  | Estimated |  | Unrealized |  | Estimated |  | Unrealized |  | Estimated
| losses |  | fair value |  | losses |  | fair value |  | losses |  | fair value
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |
Pass-through certificates: |  |  |  |  |  |  |  |  |  |  |
GSE | $ 99 |  | $ 14,156 |  | $ - |  | $ - |  | $ 99 |  | $ 14,156
REMICs: |  |  |  |  |  |  |  |  |  |  |
GSE | 58 |  | 100,310 |  | 4 |  | 7,633 |  | 62 |  | 107,943
Non-GSE | - |  | - |  | 33 |  | 604 |  | 33 |  | 604
Total | $ 157 |  | $ 114,466 |  | $ 37 |  | $ 8,237 |  | $ 194 |  | $ 122,703
The Company held 29 pass-through GSE mortgage-backed securities, six REMIC GSE mortgage-backed securities, and one REMIC non-GSE mortgage-backed security that w ere in a continuous unrealized loss position of greater than twelve months, 17 pass-through GSE mortgage-backed securities, 16 REMIC mortgage-backed securities issued or guaranteed by GSEs, nine corporate securities, and one REMIC non-GSE mortgage-backed security that were in an unrealized loss position of less than twelve months, and rated investment grade at December 31, 201 3. The declines in value relate to the general interest rate environment and are considered temporary. The securities cannot be prepaid in a manner that would result in the Company not receiving substantially all of its amortized cost. The Company neither has an intent to sell, nor is it more likely than not that the Company will be required to sell, the securities before the recovery of their amortized cost basis or, if necessary, maturity. The fair values of our investment securities could decline in the future if the underlying performance of the collateral for the collateralized mortgage obligation s or other securities deteriorate s and our credit enhancement levels do not provide sufficient protections to our contractual principal and interest. As a result, there is a risk that significant other-than-temporary impairments may occur in the future given the current economic environment.

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