XML 159 R135.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Billions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Feb. 13, 2018 | Feb. 12, 2018
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Cash Amount included in Mixed Consideration |  | $ 51.60 |
KMPR Shares included in Mixed Consideration |  | 1.2019 |
Cash Amount included in Cash Consideration |  | $ 129.00 |
KMPR Shares included in Stock Consideration |  | 2.0031 |
KMPR Shares held by Infinity Shareholders |  | 20.00% |
Infinity [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Premiums Written, Net | $ 1.4 |  |
20-trading day weighted average price as of 2-12-18 [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Business Acquisition, Share Price |  | $ 129.00 |
Share Price |  |  | $ 64.40
Total Merger Value |  | $ 1.4 |
Kemper's 2-12-18 Closing Price per share [Member] | Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Business Acquisition, Share Price |  | $ 121.01 |
Share Price |  |  | $ 57.75
Total Merger Value |  | $ 1.3 |

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- Definition Cash Amount included in Cash Consideration + References No definition available. + Details
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Namespace Prefix: | kmpr_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition Cash Amount included in Mixed Consideration + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition KMPR Shares held by Infinity Shareholders + References No definition available. + Details
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Namespace Prefix: | kmpr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition KMPR Shares included in Mixed Consideration + References No definition available. + Details
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Namespace Prefix: | kmpr_
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Balance Type: | na
Period Type: | instant

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- Definition KMPR Shares included in Stock Consideration + References No definition available. + Details
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- Definition Total Merger Value + References No definition available. + Details
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Namespace Prefix: | kmpr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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