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Reinsurance - Reinsurance Receivable and Financial Strength Ratings by Reinsurer (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | $ 4,161,537 | $ 4,110,628
Pecan Re Inc [Member] | External credit rating, not rated [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [1],[2] | 2,718,356 |
Prime Reinsurance Company [Member] | External credit rating, not rated [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [1] |  | 2,692,721
SCOR Global Life Reinsurance Companies [Member] | AM Best, A Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [3] | 358,815 | 362,195
Munich Re Life Insurance Company of Vermont [Member] | External credit rating, not rated [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [1],[4] | 290,384 | 270,306
Swiss Re Life & Health America Inc. [Member] | AM Best, A+ Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [5] | 246,036 | 254,461
American Health and Life Insurance Company [Member] | AM Best, B Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable | [1] | 177,295 | 176,790
Munich American Reassurance Company [Member] | AM Best, A+ Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | 106,446 | 101,466
Korean Reinsurance Company [Member] | AM Best, A Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | 96,066 | 91,605
RGA Reinsurance Company [Member] | AM Best, A+ Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | 83,313 | 81,217
TOA Reinsurance Company [Member] | AM Best, A+ Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | 22,339 | 22,242
Hannover Life Reassurance Company [Member] | AM Best, A+ Rating [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | 22,606 | 20,650
All Other Reinsurers [Member] |  |  |
Ceded Credit Risk [Line Items] |  |  |
Reinsurance receivable |  | $ 39,881 | $ 36,975
[1] | Includes balances ceded under coinsurance transactions of term life insurance policies that were in force as of December 31, 2009. Amounts shown are net of their share of the reinsurance receivable from other reinsurers.
[2] | Pecan Re Inc. is a wholly owned subsidiary of Swiss Re Life & Health America Inc.
[3] | Includes amounts ceded to Transamerica Reinsurance Companies and fully retroceded to SCOR Global Life Reinsurance Companies.
[4] | Previously known as Financial Reassurance Company 2010, Ltd. This entity was acquired by Munich American Reassurance Company from Citigroup Inc. (“Citigroup”) as of September 23, 2016 and was subsequently renamed Munich Re Life Insurance Company of Vermont.
[5] | Includes amounts ceded to Lincoln National Life Insurance and fully retroceded to Swiss Re Life & Health America Inc.

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- Definition Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6824-158387 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6485522&loc=d3e21409-158489 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),6) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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