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Quarterly Financial Information Level 1 (Notes) | 12 Months Ended
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Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Information [Text Block] | Quarterly Financial Information (Unaudited) Unaudited quarterly results of operations are summarized below.
|  | Quarter ended
|  | March 31, |  | June 30, |  | September 30, |  | December 31,
|  | (Dollars in thousands, except per share data)
2012 |  |  |  |  |  |  |  |
Premiums and product charges |  | $ | 22,615 |  |  | $ | 25,156 |  |  | $ | 27,175 |  |  | $ | 26,937 |
Net investment income |  | 326,910 |  |  | 320,259 |  |  | 318,594 |  |  | 321,160 |
Change in fair value of derivatives |  | 259,161 |  |  | (150,847 | ) |  | 161,090 |  |  | (48,266 | )
Net realized gains (losses) on investments, excluding OTTI losses |  | (6,076 | ) |  | (611 | ) |  | (1,238 | ) |  | 1,471 |
Net OTTI losses recognized in operations |  | (2,881 | ) |  | (978 | ) |  | (1,686 | ) |  | (9,387 | )
Total revenues |  | 599,729 |  |  | 192,979 |  |  | 503,935 |  |  | 291,915 |
Net income (loss) |  | 10,471 |  |  | 18,759 |  |  | (7,829 | ) |  | 36,397 |
Earnings (loss) per common share |  | 0.18 |  |  | 0.31 |  |  | (0.13 | ) |  | 0.58 |
Earnings (loss) per common share—assuming dilution |  | 0.16 |  |  | 0.30 |  |  | (0.13 | ) |  | 0.55 |
2011 |  |  |  |  |  |  |  |
Premiums and product charges |  | $ | 19,878 |  |  | $ | 23,181 |  |  | $ | 23,531 |  |  | $ | 21,750 |
Net investment income |  | 292,128 |  |  | 296,878 |  |  | 305,502 |  |  | 324,272 |
Change in fair value of derivatives |  | 148,653 |  |  | (22,029 | ) |  | (333,621 | ) |  | 92,269 |
Net realized gains (losses) on investments, excluding OTTI losses |  | (1,193 | ) |  | (854 | ) |  | (17,292 | ) |  | 698 |
Net OTTI losses recognized in operations |  | (6,571 | ) |  | (2,229 | ) |  | (8,891 | ) |  | (16,285 | )
Total revenues |  | 452,895 |  |  | 294,947 |  |  | (30,771 | ) |  | 422,704 |
Net income (loss) |  | 31,343 |  |  | 18,274 |  |  | (13,068 | ) |  | 49,699 |
Earnings (loss) per common share |  | 0.53 |  |  | 0.31 |  |  | (0.22 | ) |  | 0.83 |
Earnings (loss) per common share—assuming dilution |  | 0.48 |  |  | 0.28 |  |  | (0.22 | ) |  | 0.79 |
Earnings per common share for each quarter is computed independently of earnings per common share for the year. As a result, the sum of the quarterly earnings per common share amounts may not equal the earnings per common share for the year. In the quarter ended March 31, 2011, we adjusted for an overstatement of our single premium immediate annuity reserves that resulted in a cumulative overstatement of net income for the first quarter of 2011 of $2.7 million. The differences between the change in fair value of derivatives for each quarter primarily correspond to the performance of the indices upon which our call options are based. The comparability of net income (loss) is impacted by the application of fair value accounting to our fixed index annuity business as follows:
| Quarter ended
| March 31, |  | June 30, |  | September 30, |  | December 31,
| (Dollars in thousands)
2012 | $ | 16,279 |  |  | $ | 5,058 |  |  | $ | 18,106 |  |  | $ | (8,270 | )
2011 | (2,945 | ) |  | 9,747 |  |  | 45,868 |  |  | (21,313 | )

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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