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Organization and Basis of Presentation (Tables) | 6 Months Ended
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Jun. 30, 2012
Retrospective Effect of Change in Accounting Principle, Tabular Presentation by Financial Statement Line Item, Amount after Application [Abstract] |
Schedule Of New Accounting Pronouncements And Changes In Accounting Principles Text Block |
|  |  |  |  | Three months ended June 30, 2011
|  |  |  |  |  | As Reported |  |  | Adjustments |  |  | As Amended
Benefits and Expenses: |  |  |  |  |  |  |  |  |
Policy acquisition costs and other insurance expenses |  | $ | 261,282 |  | $ | 13,237 |  | $ | 274,519
Income before income taxes |  |  | 200,406 |  |  | (13,237) |  |  | 187,169
Provision for income taxes |  |  | 67,518 |  |  | (4,293) |  |  | 63,225
Net income |  | $ | 132,888 |  | $ | (8,944) |  | $ | 123,944
Earnings per share: |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 1.80 |  | $ | (0.12) |  | $ | 1.68
Diluted earnings per share |  | $ | 1.78 |  | $ | (0.12) |  | $ | 1.66
|  |  |  |  | Six months ended June 30, 2011
|  |  |  |  |  | As Reported |  |  | Adjustments |  |  | As Amended
Benefits and Expenses: |  |  |  |  |  |  |  |  |
Policy acquisition costs and other insurance expenses |  | $ | 592,435 |  | $ | 28,331 |  | $ | 620,766
Income before income taxes |  |  | 442,255 |  |  | (28,331) |  |  | 413,924
Provision for income taxes |  |  | 148,551 |  |  | (7,491) |  |  | 141,060
Net income |  | $ | 293,704 |  | $ | (20,840) |  | $ | 272,864
Earnings per share: |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 3.99 |  | $ | (0.28) |  | $ | 3.71
Diluted earnings per share |  | $ | 3.96 |  | $ | (0.28) |  | $ | 3.68
|  |  |  |  |  | Six months ended June 30, 2011
|  |  |  |  |  | As Reported |  |  | Adjustments |  |  | As Amended
Cash Flows from Operating Activities: |  |  |  |  |  |  |  |  |
Net Income |  | $ | 293,704 |  | $ | (20,840) |  | $ | 272,864
| Change in operating assets and liabilities |  |  |  |  |  |  |  |  |
|  | Deferred policy acquisition costs |  |  | 33,008 |  |  | 28,331 |  |  | 61,339
|  | Deferred income taxes |  |  | (34,698) |  |  | (7,491) |  |  | (42,189)

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- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accounting Change -URI http://asc.fasb.org/extlink&oid=6503790 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22583-107794 Reference 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699 Reference 6: 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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 01 -Paragraph b -Subparagraph 6 -Article 10 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Direct Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6510796 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 154 -Paragraph 2, 17, 18 -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 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6507316 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Retrospective Application -URI http://asc.fasb.org/extlink&oid=6523989 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22580-107794 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22499-107794 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Indirect Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6515603 + Details
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