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Income Tax (Tax Effects of Temporary Differences that Give Rise to Significant Portions of the Deferred Income Tax Asset and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Deferred Tax Assets, Net [Abstract] |  |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals | $ 106,587 | $ 77,116
Deferred Tax Assets Reinsurance Transactions | 59,942 | 17,054
Deferred Tax Assets Cash And Invested Assets | 2,106 | 0
Deferred Tax Assets Investment Income | 108,462 | 109,275
Deferred Tax Assets Deferred Acquisition Costs Capitalized For Tax | 90,187 | 91,886
Deferred Tax Assets, Operating Loss Carryforwards | 252,192 | 159,821
Deferred Tax Assets Capital Loss And Foreign Tax Credit Carryforwards | 0 | 621
Deferred Tax Assets Deferred Acquisition Costs Capitalized For Financial Reporting | 2,356 | 23,595
Deferred Tax Assets, Gross | 621,832 | 479,368
Deferred Tax Assets, Valuation Allowance | (102,228) | (10,100)
Deferred Tax Assets, Net | 519,604 | 469,268
Deferred Tax Liabilities [Abstract] |  |
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost | 1,066,351 | 1,082,394
Deferred Tax Liabilities Reinsurance Transactions | 906,197 | 637,002
Deferred Tax Liabilities Cash And Invested Assets | 310,332 | 832,940
Deferred Tax Liabilities Investment Income | 12,959 | 12,719
Deferred Tax Liabilities, Unrealized Currency Transaction Gains | 19,704 | 0
Deferred Tax Liabilities | 2,315,543 | 2,565,055
Net deferred income tax liabilities | 1,795,939 | 2,095,787
Balance Sheet Presentation Of Deferred Tax Liabilities [Abstract] |  |
Deferred Tax Assets, Other | 41,638 | 24,714
Deferred income taxes | $ 1,837,577 | $ 2,120,501

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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from capital losses in excess of statutory limitations in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization and from unused foreign tax credit carryforwards which will decrease future taxable income if applied in future years; a tax credit carryforward is the amount by which tax credits available for utilization exceeded statutory limits on inclusion in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and providing tax laws continue to allow such utilization. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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