Realized Gain (Loss) on Disposal of Subsidiary

No definition available.

Name:	kmpr_RealizedGainLossonDisposalofSubsidiary
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- Definition

The net realized gains on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity

+ References

No definition available.

+ Details

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- Definition

The net realized losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity

+ References

No definition available.

+ Details

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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

+ Details

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- Definition

This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities and excluding other than temporary impairments (OTTI), if any, recognized elsewhere.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments
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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

+ Details

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- Definition

This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph ((b)(7))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

This item represents the gain (loss) realized during the period from the sale of trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph c

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.7(c))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Trading Securities

-URI http://asc.fasb.org/extlink&oid=6526789

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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Income From Investments - Net Realized Gains on Sales of Investments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Investment Income [Line Items]
Realized Investment Gains									$ 41.7kmpr_RealizedInvestmentGains	$ 99.5kmpr_RealizedInvestmentGains	$ 65.4kmpr_RealizedInvestmentGains
Realized Investment Losses									(2.5)kmpr_RealizedInvestmentLosses	(1.0)kmpr_RealizedInvestmentLosses	(0.3)kmpr_RealizedInvestmentLosses
Gain on Sale of Subsidiary									1.6	0	0
Trading Securities, Realized Gain (Loss)									(0.1)	0.6	0.3
Net Realized Gains (Losses) on Sales of Investments	21.0	8.0	3.5	6.6	20.8	49.1	2.3	26.9	39.1	99.1	65.4
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gains on Sales									7.0	30.9	56.9
Losses on Sales									(0.2)	(0.4)	(0.1)
Equity Securities [Member]
Net Investment Income [Line Items]
Gains on Sales									33.1	21.8	8.3
Losses on Sales									(2.0)	(0.5)	(0.2)
Investee [Member]
Net Investment Income [Line Items]
Equity Method Limited Liability Investment, Gains on Sales									0	2.5	0
Real Estate Investment [Member]
Net Investment Income [Line Items]
Realized Investment Gains									0	44.2	0.2
Realized Investment Losses									(0.2)	0	0
Other Investment [Member]
Net Investment Income [Line Items]
Realized Investment Gains									0	0.1	0
Realized Investment Losses									$ (0.1)	$ (0.1)	$ 0