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Catastrophe Reinsurance (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014
Reinsurance Transactions [Abstract] |
Catastrophic Events Classification | $ 25.0 kmpr_LossThresholdForCatastrophicEventsClassification

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- Definition Loss Threshold For Catastrophic Events Classification by ISO + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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