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Schedule II - Primerica, Inc. (Parent Only) - Condensed Statements of Cash Flow Parenthetical (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Condensed Financial Information Of Parent Company Only Disclosure [Abstract] |  |  |
Fixed-maturity securities transferred | $ 27.6 | $ 35.5 | $ 39.2

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- Definition Equity method investments fixed maturity securities transferred. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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