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Investments (Fixed Maturity Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
AFS due in one year or less fair value | $ 394,027 |
AFS due after one year through five years fair value | 3,001,602 |
AFS due after five years through 10 years fair value | 2,531,172 |
AFS due after 10 years fair value | 168,819 |
Fixed income securities, available-for-sale securities | 6,095,620 | $ 5,273,100
HTM due in one year or less carrying value | 1,211 |
HTM due after one year through five years carrying value | 13,856 |
HTM due after five years through 10 years carrying value | 5,733 |
HTM due after 10 years carrying value | 0 |
Total HTM fixed income securities carrying value | 20,800 | 37,110
HTM due in one year or less fair value | 1,229 |
HTM due after one year through five years fair value | 14,820 |
HTM due after five years through 10 years fair value | 5,926 |
HTM due after 10 years fair value | 0 |
Total HTM fixed income securities fair value | $ 21,975 | $ 38,317

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