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Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Components of Comprehensive Income-Gross and Net of Tax |
Nine Months 2012 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net income |  | $ | 42,813 |  |  | 6,158 |  |  | 36,655 |
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 64,273 |  |  | 22,496 |  |  | 41,777 |
Portion of OTTI recognized in OCI |  | 2,512 |  |  | 879 |  |  | 1,633 |
Amortization of net unrealized gains on HTM securities |  | (649 | ) |  | (227 | ) |  | (422 | )
Reclassification adjustment for gains included in net income |  | (4,702 | ) |  | (1,646 | ) |  | (3,056 | )
Net unrealized gains |  | 61,434 |  |  | 21,502 |  |  | 39,932 |
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 4,172 |  |  | 1,460 |  |  | 2,712 |
Prior service cost |  | 113 |  |  | 40 |  |  | 73 |
Defined benefit pension and post-retirement plans |  | 4,285 |  |  | 1,500 |  |  | 2,785 |
Comprehensive income |  | $ | 108,532 |  |  | 29,160 |  |  | 79,372 |
Nine Months 2011 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net (loss) income |  | $ | (12,424 | ) |  | (16,423 | ) |  | 3,999 |
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 43,878 |  |  | 15,357 |  |  | 28,521 |
Portion of OTTI recognized in OCI |  | 517 |  |  | 181 |  |  | 336 |
Amortization of net unrealized gains on HTM securities |  | (3,097 | ) |  | (1,084 | ) |  | (2,013 | )
Reclassification adjustment for gains included in net income |  | (5,986 | ) |  | (2,095 | ) |  | (3,891 | )
Net unrealized gains |  | 35,312 |  |  | 12,359 |  |  | 22,953 |
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 3,252 |  |  | 1,138 |  |  | 2,114 |
Prior service cost |  | 113 |  |  | 40 |  |  | 73 |
Defined benefit pension and post-retirement plans |  | 3,365 |  |  | 1,178 |  |  | 2,187 |
Comprehensive loss |  | $ | 26,253 |  |  | (2,886 | ) |  | 29,139 |
Third Quarter 2012 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net income |  | $ | 20,314 |  |  | 2,040 |  |  | 18,274 |
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 36,620 |  |  | 12,817 |  |  | 23,803 |
Portion of OTTI recognized in OCI |  | 2,031 |  |  | 711 |  |  | 1,320 |
Amortization of net unrealized gains on HTM securities |  | 827 |  |  | 290 |  |  | 537 |
Reclassification adjustment for gains included in net income |  | (125 | ) |  | (44 | ) |  | (81 | )
Net unrealized gains |  | 39,353 |  |  | 13,774 |  |  | 25,579 |
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 1,391 |  |  | 487 |  |  | 904 |
Prior service cost |  | 38 |  |  | 14 |  |  | 24 |
Defined benefit pension and post-retirement plans |  | 1,429 |  |  | 501 |  |  | 928 |
Comprehensive income |  | $ | 61,096 |  |  | 16,315 |  |  | 44,781 |
Third Quarter 2011 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net loss |  | $ | (38,483 | ) |  | (20,515 | ) |  | (17,968 | )
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 14,712 |  |  | 5,148 |  |  | 9,564 |
Portion of OTTI recognized in OCI |  | (81 | ) |  | (28 | ) |  | (53 | )
Amortization of net unrealized gains on HTM securities |  | (664 | ) |  | (232 | ) |  | (432 | )
Reclassification adjustment for gains included in net income |  | 1,907 |  |  | 668 |  |  | 1,239 |
Net unrealized gains |  | 15,874 |  |  | 5,556 |  |  | 10,318 |
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 1,043 |  |  | 365 |  |  | 678 |
Prior service cost |  | 38 |  |  | 14 |  |  | 24 |
Defined benefit pension and post-retirement plans |  | 1,081 |  |  | 379 |  |  | 702 |
Comprehensive loss |  | $ | (21,528 | ) |  | (14,580 | ) |  | (6,948 | )
Components of Accumulated Other Comprehensive Income |
September 30, 2012 |  | Net Unrealized Gain (Loss) |  |  |  |
($ in thousands) |  | OTTI Related |  | HTM Related |  | All Other |  | Defined Benefit Pension and Post-Retirement Plans |  | Total Accumulated OCI
Balance, December 31, 2011 |  | $ | (3,500 | ) |  | 4,622 |  |  | 96,125 |  |  | (54,953 | ) |  | 42,294 |
Changes in component during period |  | 1,633 |  |  | (1,249 | ) |  | 39,548 |  |  | 2,785 |  |  | 42,717 |
Balance, September 30, 2012 |  | $ | (1,867 | ) |  | 3,373 |  |  | 135,673 |  |  | (52,168 | ) |  | 85,011 |

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e526-108580 + Details
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