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Deferred Policy Acquisition Costs (Details 1) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] |  |  |
Deferred Policy Acquisition Costs | $ 3,543,925,000 | $ 3,314,715,000 | $ 3,355,275,000
Deferred Policy Acquisition Cost, Amortization Expense, Unrealized Investment Gains (Losses) | (14,938,000) | (7,448,000) | (15,671,000)
Deferred Policy Acquisition Costs Foreign Currency | 23,559,000 | (5,822,000) | 31,603,000
Deferred Policy Acquisition Costs | 3,619,274,000 | 3,543,925,000 | 3,314,715,000
Deferred Policy Acquisition Costs Assumed [Member] |  |  |
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] |  |  |
Deferred Policy Acquisition Costs, Additions | 1,081,599,000 | 947,014,000 | 885,450,000
Deferred Policy Acquisition Cost, Amortization Expense | (975,844,000) | (820,084,000) | (831,979,000)
Deferred Policy Acquisition Costs Allocated to Change In Value Of Embedded Derivatives [Member] |  |  |
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] |  |  |
Deferred Policy Acquisition Cost, Amortization Expense | (42,183,000) | 114,877,000 | (108,515,000)
Deferred Policy Acquisition Costs Retroceded [Member] |  |  |
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] |  |  |
Deferred Policy Acquisition Costs, Additions | (11,814,000) | (13,411,000) | (13,838,000)
Deferred Policy Acquisition Cost, Amortization Expense | $ 14,970,000 | $ 14,084,000 | $ 12,390,000

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- Definition Amount of deferred policy acquisition costs charged to expense in the period, generally in proportion to related revenue earned, estimated gross profits, or over the customer relationship or some other period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6967983&loc=d3e11264-158415 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 7 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6480726&loc=d3e6691-158385 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 35 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6481450&loc=d3e10157-158409 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 60 -Paragraph 60 -Subparagraph c -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 FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.7(a)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 95-1 -Paragraph 19, 20, 21, 22, 23 -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 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 18 -Article 12 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 97 -Paragraph 22, 23, 24, 25, 26 -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. + Details
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- Definition Amount of amortization of deferred policy acquisition costs due to unrealized investment gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 97 -Paragraph 23 -Subparagraph c -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6967983&loc=d3e11264-158415 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 35 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6481450&loc=d3e10138-158409 + Details
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- Definition Total amount of policy acquisition costs capitalized during the income statement period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6967983&loc=d3e11264-158415 + Details
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