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Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2013
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Components of Comprehensive Income-Gross and Net of Tax |
First Quarter 2013 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net income |  | $ | 27,333 |  |  | 6,025 |  |  | 21,308 |
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 3,684 |  |  | 1,290 |  |  | 2,394 |
Portion of OTTI recognized in OCI |  | 37 |  |  | 13 |  |  | 24 |
Amortization of net unrealized gains on HTM securities |  | (636 | ) |  | (223 | ) |  | (413 | )
Reclassification adjustment for gains included in net income |  | (6,057 | ) |  | (2,120 | ) |  | (3,937 | )
Net unrealized gains |  | (2,972 | ) |  | (1,040 | ) |  | (1,932 | )
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Net actuarial gain |  | 44,000 |  |  | 15,400 |  |  | 28,600 |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 1,840 |  |  | 644 |  |  | 1,196 |
Prior service cost |  | 10 |  |  | 4 |  |  | 6 |
Curtailment expense |  | 16 |  |  | 5 |  |  | 11 |
Defined benefit pension and post-retirement plans |  | 45,866 |  |  | 16,053 |  |  | 29,813 |
Comprehensive income |  | $ | 70,227 |  |  | 21,038 |  |  | 49,189 |
First Quarter 2012 |  |  |  |  |  |
($ in thousands) |  | Gross |  | Tax |  | Net
Net income |  | $ | 23,191 |  |  | 5,098 |  |  | 18,093 |
Components of OCI: |  |  |  |  |  |  |  |  |
Unrealized gains on securities: |  |  |  |  |  |  |  |  |
Unrealized holding gains during the period |  | 19,804 |  |  | 6,931 |  |  | 12,873 |
Portion of OTTI recognized in OCI |  | 367 |  |  | 129 |  |  | 238 |
Amortization of net unrealized gains on HTM securities |  | (794 | ) |  | (278 | ) |  | (516 | )
Reclassification adjustment for gains included in net income |  | (4,359 | ) |  | (1,526 | ) |  | (2,833 | )
Net unrealized gains |  | 15,018 |  |  | 5,256 |  |  | 9,762 |
Defined benefit pension and post-retirement plans: |  |  |  |  |  |  |  |  |
Reversal of amortization items: |  |  |  |  |  |  |  |  |
Net actuarial loss |  | 1,390 |  |  | 487 |  |  | 903 |
Prior service cost |  | 38 |  |  | 13 |  |  | 25 |
Defined benefit pension and post-retirement plans |  | 1,428 |  |  | 500 |  |  | 928 |
Comprehensive income |  | $ | 39,637 |  |  | 10,854 |  |  | 28,783 |
Components of Accumulated Other Comprehensive Income |
March 31, 2013 |  | Net Unrealized (Loss) Gain |  |  |  |
($ in thousands) |  | OTTI Related |  | HTM Related |  | All Other |  | Defined Benefit Pension and Post-Retirement Plans |  | Total AOCI
Balance, December 31, 2012 |  | $ | (1,658 | ) |  | 2,594 |  |  | 121,391 |  |  | (68,287 | ) |  | 54,040 |
OCI before reclassifications |  | 19 |  |  | (106 | ) |  | 2,500 |  |  | 28,600 |  |  | 31,013 |
Amounts reclassified from AOCI |  | 5 |  |  | (466 | ) |  | (3,884 | ) |  | 1,213 |  |  | (3,132 | )
Net current period OCI |  | 24 |  |  | (572 | ) |  | (1,384 | ) |  | 29,813 |  |  | 27,881 |
Balance, March 31, 2013 |  | $ | (1,634 | ) |  | 2,022 |  |  | 120,007 |  |  | (38,474 | ) |  | 81,921 |
Reclassification Out Of Accumulated Other Comprehensive Income |
2013 | Amount Reclassified from AOCI |  | Affected Line Item in the Unaudited Consolidated Statement of Income
($ in thousands) |
OTTI related |  |  |  |
Amortization of non-credit OTTI losses on HTM securities | $ | 7 |  |  | Net investment income earned
| 7 |  |  | Income from continuing operations before federal income tax
| (2 | ) |  | Total federal income tax expense
| 5 |  |  | Net income
HTM related |  |  |
Unrealized gains and losses on HTM disposals | (81 | ) |  | Net realized investment gains
Amortization of net unrealized gains on HTM securities | (636 | ) |  | Net investment income earned
| (717 | ) |  | Income from continuing operations before federal income tax
| 251 |  |  | Total federal income tax expense
| (466 | ) |  | Net income
Unrealized gains and losses on AFS |  |  |
Unrealized gains and losses on AFS disposals | (5,976 | ) |  | Net realized investments gains
| (5,976 | ) |  | Income from continuing operations before federal income tax
| 2,092 |  |  | Total federal income tax expense
| (3,884 | ) |  | Net income
Defined benefit pension and post-retirement life plans |  |  |
Net actuarial loss | 400 |  |  | Loss and loss expense incurred
| 1,440 |  |  | Policy acquisition costs
| 1,840 |  |  | Income from continuing operations before federal income tax
Prior service cost | 7 |  |  | Loss and loss expense incurred
| 3 |  |  | Policy acquisition costs
| 10 |  |  | Income from continuing operations before federal income tax
Curtailment expense | — |  |  | Loss and loss expense incurred
| 16 |  |  | Policy acquisition costs
| 16 |  |  | Income from continuing operations before federal income tax
Total defined benefit pension and post-retirement life | 1,866 |  |  | Income from continuing operations before federal income tax
| (653 | ) |  | Total federal income tax expense
| 1,213 |  |  | Net income
Total reclassifications for the period | $ | (3,132 | ) |  | Net income

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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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