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Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2011
Investment Securities [Abstract] |
Schedule Of Investment Securities |
(in thousands) |
Securities Available-for-Sale |  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
Obligations of U.S. Treasury and other U.S. Government sponsored entities |  | $ | 223,459 |  |  | $ | 1,358 |  |  | $ | - |  |  | $ | 224,817 |
Obligations of states and political subdivisions |  |  | 3,615 |  |  |  | 109 |  |  |  | - |  |  |  | 3,724 |
U.S. Government sponsored entities asset-backed securities |  |  | 544,648 |  |  |  | 22,100 |  |  |  | - |  |  |  | 566,748 |
Other equity securities |  |  | 1,188 |  |  |  | 717 |  |  |  | 31 |  |  |  | 1,874 |
Total |  | $ | 772,910 |  |  | $ | 24,284 |  |  | $ | 31 |  |  | $ | 797,163 |
Securities Held-to-Maturity |  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Estimated Fair Value |
Obligations of states and political subdivisions |  | $ | 1,992 |  |  | $ | 7 |  |  | $ | - |  |  | $ | 1,999 |
U.S. Government sponsored entities asset-backed securities |  |  | 841,584 |  |  |  | 17,971 |  |  |  | 185 |  |  |  | 859,370 |
Total |  | $ | 843,576 |  |  | $ | 17,978 |  |  | $ | 185 |  |  | $ | 861,369
(in thousands) |
Securities Available-for-Sale |  | Amortized cost |  |  | Gross unrealized holding gains |  |  | Gross unrealized holding losses |  |  | Estimated fair value |
Obligations of U.S. Treasury and other U.S. Government sponsored entities |  | $ | 272,301 |  |  | $ | 2,968 |  |  | $ | 1,956 |  |  | $ | 273,313 |
Obligations of states and political subdivisions |  |  | 10,815 |  |  |  | 281 |  |  |  | 52 |  |  |  | 11,044 |
U.S. Government sponsored entities asset-backed securities |  |  | 990,204 |  |  |  | 30,633 |  |  |  | 9,425 |  |  |  | 1,011,412 |
Other equity securities |  |  | 938 |  |  |  | 858 |  |  |  | 43 |  |  |  | 1,753 |
Total |  | $ | 1,274,258 |  |  | $ | 34,740 |  |  | $ | 11,476 |  |  | $ | 1,297,522 |
Securities Held-to-Maturity |  | Amortized cost |  |  | Gross unrealized holding gains |  |  | Gross unrealized holding losses |  |  | Estimated fair value |
Obligations of states and political subdivisions |  | $ | 3,167 |  |  | $ | 7 |  |  | $ | - |  |  | $ | 3,174 |
U.S. Government sponsored entities asset-backed securities |  |  | 670,403 |  |  |  | 17,157 |  |  |  | 4,620 |  |  |  | 682,940 |
Total |  | $ | 673,570 |  |  | $ | 17,164 |  |  | $ | 4,620 |  |  | $ | 686,114 |
Schedule Of Unrealized Loss On Securities |
(in thousands) |  | Less than 12 months |  |  | 12 months or longer |  |  | Total |
Securities Available-for-Sale |  | Fair value |  |  | Unrealized losses |  |  | Fair value |  |  | Unrealized losses |  |  | Fair value |  |  | Unrealized losses |
Other equity securities |  | $ | - |  |  | $ | - |  |  | $ | 80 |  |  | $ | 31 |  |  | $ | 80 |  |  | $ | 31 |
Securities Held-to-Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government sponsored entities asset-backed securities |  | $ | 107,352 |  |  | $ | 185 |  |  | $ | - |  |  | $ | - |  |  | $ | 107,352 |  |  | $ | 185
Securities with unrealized losses at December 31, 2010, were as follows:
(in thousands) |  | Less than 12 months |  |  | 12 months or longer |  |  | Total |
Securities Available-for-Sale |  | Fair value |  |  | Unrealized losses |  |  | Fair value |  |  | Unrealized losses |  |  | Fair value |  |  | Unrealized losses |
Obligations of U.S. Treasury and other U.S. Government sponsored entities |  | $ | 74,379 |  |  | $ | 1,956 |  |  | $ | - |  |  | $ | - |  |  | $ | 74,379 |  |  | $ | 1,956 |
Obligations of states and political subdivisions |  |  | 1,459 |  |  |  | 52 |  |  |  |  |  |  |  |  |  |  |  | 1,459 |  |  |  | 52 |
U.S. Government sponsored entities asset-backed securities |  |  | 418,156 |  |  |  | 9,425 |  |  |  | - |  |  |  | - |  |  |  | 418,156 |  |  |  | 9,425 |
Other equity securities |  |  | 74 |  |  |  | 29 |  |  |  | 221 |  |  |  | 14 |  |  |  | 295 |  |  |  | 43 |
Total |  | $ | 494,068 |  |  | $ | 11,462 |  |  | $ | 221 |  |  | $ | 14 |  |  | $ | 494,289 |  |  | $ | 11,476 |
Securities Held-to-Maturity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Government sponsored entities asset-backed securities |  | $ | 297,584 |  |  | $ | 4,620 |  |  | $ | - |  |  | $ | - |  |  | $ | 297,584 |  |  | $ | 4,620 |
Amortized Cost And Estimated Fair Value Of Investments In Debt Securities By Contractual Maturity |
(in thousands) |  | Amortized cost |  |  | Fair value |
Securities Available-for-Sale |  |  |  |  |  |
U.S. Treasury and sponsored entities notes: |  |  |  |  |  |
Due within one year |  | $ | 223,459 |  |  | $ | 224,817 |
Total |  | $ | 223,459 |  |  | $ | 224,817 |
Obligations of states and political subdivisions: |  |  |  |  |  |  |  |
Due within one year |  | $ | 2,315 |  |  | $ | 2,327 |
Due one through five years |  |  | 1,300 |  |  |  | 1,397 |
|  | $ | 3,615 |  |  | $ | 3,724 |
U.S. Government sponsored entities asset-backed securities: |  |  |  |  |  |  |  |
Total |  | $ | 544,648 |  |  | $ | 566,748 |
(in thousands) |  | Amortized cost |  |  | Fair value |
Securities Held-to-Maturity |  |  |  |  |  |
Obligations of state and political subdivisions: |  |  |  |
Due within one year |  | $ | 1,992 |  |  | $ | 1,999 |
Total |  | $ | 1,992 |  |  | $ | 1,999 |
U.S. Government sponsored entities asset-backed securities: |  |  |  |  |  |  |  |
Total |  | $ | 841,584 |  |  | $ | 859,370 |

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