Kemper (KMPR) 10-Q 5 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	9 Months Ended
	Sep. 30, 2015	Oct. 31, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	KEMPER Corporation
Trading Symbol	KMPR
Entity Central Index Key	860,748
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding at October 31, 2015		51,254,173

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Earned Premiums	$ 536.7	$ 462.8	$ 1,468.1	$ 1,410.7
Net Investment Income	75.9	72.3	223.2	216
Other Income	0.8	0.5	2.3	0.8
Net Realized Gains on Sales of Investments	5.3	8	42.7	18.1
Other-than-temporary Impairment Losses:
Total Other-than-temporary Impairment Losses	(3.3)	(3.8)	(12.5)	(8.7)
Portion of Losses Recognized in Other Comprehensive Income	0	0	0	0
Net Impairment Losses Recognized in Earnings	(3.3)	(3.8)	(12.5)	(8.7)
Total Revenues	615.4	539.8	1,723.8	1,636.9
Expenses:
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	378.8	300.5	1,051.6	975.9
Insurance Expenses	161.1	158.6	468.1	472
Write-offs of Long-lived Assets	0	54.6	11.1	54.6
Loss from Early Extinguishment of Debt	0	0	9.1	0
Interest and Other Expenses	25.7	22.1	82	67.3
Total Expenses	565.6	535.8	1,621.9	1,569.8
Income from Continuing Operations before Income Taxes	49.8	4	101.9	67.1
Income Tax Benefit (Expense)	(11.8)	0.8	(23)	(17.8)
Income from Continuing Operations	38	4.8	78.9	49.3
Income (Loss) from Discontinued Operations	(0.1)	(0.1)	2.2	(0.2)
Net Income	$ 37.9	$ 4.7	$ 81.1	$ 49.1
Income from Continuing Operations Per Unrestricted Share:
Basic (in dollars per share)	$ 0.73	$ 0.09	$ 1.52	$ 0.90
Diluted (in dollars per share)	0.73	0.09	1.52	0.90
Net Income Per Unrestricted Share:
Basic (in dollars per share)	0.73	0.09	1.56	0.90
Diluted (in dollars per share)	0.73	0.09	1.56	0.90
Dividends Paid to Shareholders Per Share (in dollars per share)	$ 0.24	$ 0.24	$ 0.72	$ 0.72

Condensed Consolidated Stateme3

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 37.9	$ 4.7	$ 81.1	$ 49.1
Other Comprehensive Income (Loss) Before Income Taxes:
Unrealized Holding Gains (Losses)	0	2.9	(130.7)	220.5
Foreign Currency Translation Adjustments	(0.3)	(0.5)	(1.1)	(0.7)
Amortization of Net Unrecognized Postretirement Benefit Costs	5.8	2	17.3	5.9
Other Comprehensive Income (Loss) Before Income Taxes	5.5	4.4	(114.5)	225.7
Other Comprehensive Income Tax Benefit (Expense)	(1.8)	(1.6)	40.8	(79.6)
Other Comprehensive Income (Loss)	3.7	2.8	(73.7)	146.1
Total Comprehensive Income	$ 41.6	$ 7.5	$ 7.4	$ 195.2

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Investments:
Fixed Maturities at Fair Value (Amortized Cost: 2015 - $4,496.0; 2014 - $4,341.7)	$ 4,844.9	$ 4,777.6
Equity Securities at Fair Value (Cost: 2015 - $509.8; 2014 - $561.5)	535.7	632.2
Equity Method Limited Liability Investments at Cost Plus Cumulative Undistributed Earnings	179.4	184.8
Fair Value Option Investments	166.1	53.3
Short-term Investments at Cost which Approximates Fair Value	295.9	342.2
Other Investments	451	449.6
Total Investments	6,473	6,439.7
Cash	147.1	76.1
Receivables from Policyholders	347.9	295.3
Other Receivables	198.9	187
Deferred Policy Acquisition Costs	325.8	303.3
Goodwill	323	311.8
Current and Deferred Income Tax Assets	22.3	0
Other Assets	237.6	220.2
Total Assets	8,075.6	7,833.4
Insurance Reserves:
Life and Health	3,327.8	3,273.7
Property and Casualty	852.9	733.9
Total Insurance Reserves	4,180.7	4,007.6
Unearned Premiums	629.4	536.9
Liabilities for Income Taxes	3.7	36.5
Debt at Amortized Cost (Fair Value: 2015 - $792.7; 2014 - $804.4)	750.4	752.1
Accrued Expenses and Other Liabilities	486.8	409.6
Total Liabilities	6,051	5,742.7
Shareholders' Equity:
Common Stock, $0.10 Par Value, 100 Million Shares Authorized; 51,318,171 Shares Issued and Outstanding at September 30, 2015 and 52,418,246 Shares Issued and Outstanding at December 31, 2014	5.1	5.2
Paid-in Capital	651.9	660.1
Retained Earnings	1,218.6	1,202.7
Accumulated Other Comprehensive Income	149	222.7
Total Shareholders' Equity	2,024.6	2,090.7
Total Liabilities and Shareholders' Equity	$ 8,075.6	$ 7,833.4

Condensed Consolidated Balance5

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Amortized Cost of Fixed Maturity Securities	$ 4,496	$ 4,341.7
Equity Securities at Cost	509.8	561.5
Fair Value of Notes Payable	$ 792.7	$ 804.4
Common Stock, Par Value	$ 0.1	$ 0.1
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares Issued	51,318,171	52,418,246
Common Stock, Shares, Outstanding	51,318,171	52,418,246

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating Activities:
Net Income	$ 81.1	$ 49.1
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Increase in Deferred Policy Acquisition Costs	(22.5)	(3.8)
Amortization of Intangible Assets Acquired	12.8	5.4
Equity in Earnings of Equity Method Limited Liability Investments	(11.8)	(9.7)
Distribution of Accumulated Earnings of Equity Method Limited Liability Investments	4.7	14.4
Increase in Value of Fair Value Option Investments Reported in Investment Income	(1.8)	(0.6)
Amortization of Investment Securities and Depreciation of Investment Real Estate	11.7	11.3
Net Realized Gains on Sales of Investments	(42.7)	(18.1)
Net Impairment Losses Recognized in Earnings	12.5	8.7
Loss from Early Extinguishment of Debt	9.1	0
Depreciation of Property and Equipment	10	13
Write-offs of Long-lived Assets	11.1	54.6
Decrease in Receivables	29.4	21
Increase (Decrease) in Insurance Reserves	16.7	(20.1)
Increase (Decrease) in Unearned Premiums	6.8	(30.7)
Change in Income Taxes	(16.2)	(12.9)
Increase in Accrued Expenses and Other Liabilities	27.1	0.1
Other, Net	29.6	17.7
Net Cash Provided by Operating Activities	167.6	99.4
Investing Activities:
Sales, Paydowns and Maturities of Fixed Maturities	538.5	454.1
Purchases of Fixed Maturities	(518.1)	(404.3)
Sales of Equity Securities	207.4	84.4
Purchases of Equity Securities	(121)	(95.1)
Return of Investment of Equity Method Limited Liability Investments	30.3	37.4
Acquisitions of Equity Method Limited Liability Investments	(21.9)	(19.8)
Sales of Fair Value Option Investments	0	2.9
Purchases of Fair Value Option Investments	(111)	(52.9)
Decrease (Increase) in Short-term Investments	64.7	(34.1)
Improvements of Investment Real Estate	(1.1)	(1.9)
Sales of Investment Real Estate	0	0.9
Increase in Other Investments	(2.1)	(5.4)
Purchases of Corporate-owned Life Insurance	7.5	33.5
Acquisition of Software	(7.4)	(8.5)
Acquisition of Business, Net of Cash Acquired	57.6	0
Disposition of Subsidiary, Net of Cash Disposed	0	8.9
Other, Net	(2.8)	(5.4)
Net Cash Used by Investing Activities	(9.6)	(72.3)
Financing Activities:
Net Proceeds from Issuances of Debt	288.8	144.2
Repayments of Debt	(300.3)	0
Common Stock Repurchases	(41.2)	(106.5)
Dividends and Dividend Equivalents Paid	(37.3)	(39.2)
Cash Exercise of Stock Options	2.1	0
Other, Net	0.9	1
Net Cash Used by Financing Activities	(87)	(0.5)
Increase in Cash	71	26.6
Cash, Beginning of Year	76.1	66.5
Cash, End of Period	$ 147.1	$ 93.1

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note 1 - Basis of Presentation The Condensed Consolidated Financial Statements included herein have been prepared pursuant to the rules and regulations of the SEC and include the accounts of Kemper Corporation (“Kemper”) and its subsidiaries (individually and collectively referred to herein as the “Company”) and are unaudited. All significant intercompany accounts and transactions have been eliminated. Certain financial information that is normally included in annual financial statements, including certain financial statement footnote disclosures, prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) is not required by the rules and regulations of the SEC for interim financial reporting and has been condensed or omitted. In the opinion of the Company’s management, the Condensed Consolidated Financial Statements include all adjustments necessary for a fair presentation. The preparation of interim financial statements relies heavily on estimates. This factor and other factors, such as the seasonal nature of some portions of the insurance business, as well as market conditions, call for caution in drawing specific conclusions from interim results. The accompanying Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the 2014 Annual Report. Adoption of New Accounting Guidance In January 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-01, Income Statement—Extraordinary and Unusual Items (Subtopic 225-20): Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items . The Company adopted ASU 2015-01 in the first quarter of 2015 and applied its provisions retrospectively. The retrospective application had no impact on the Company’s previously issued financial statements. In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. The amendments in ASU 2015-02 affect reporting entities that are required to evaluate whether they should consolidate certain legal entities. All legal entities are subject to reevaluation under the revised consolidation model. Specifically, the amendments modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities while also eliminating the presumption that a general partner should consolidate a limited partnership. ASU 2015-02 may also affect the consolidation analysis of reporting entities that are involved with VIEs, particularly those that have fee arrangements and related party relationships. ASU 2015-02 is effective for fiscal years beginning after December 15, 2015 and interim periods within those years with early adoption being permissible. The Company is currently evaluating the impact of this guidance on its financial statements. In April 2015, the FASB issued ASU 2015-03, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs . ASU 2015-03 simplifies the presentation of debt issuance costs by requiring that they be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by ASU 2015-03. The Company adopted ASU 2015-03 in the first quarter of 2015 and applied its provisions retrospectively. The retrospective application had no impact on the Company’s previously issued financial statements. In May 2015, the FASB issued ASU 2015-09, Financial Services—Insurance (Topic 944): Disclosures about Short-Duration Contracts . ASU 2015-09 requires insurers to provide additional disclosures about short-duration insurance contracts, focusing particularly on the liability for unpaid claims and claim adjustment expenses. Insurers will be required to disclose tables showing incurred and paid claims development information by accident year for the number of years that claims typically remain outstanding, although not to exceed ten years, as well as a reconciliation of this information to the balance sheet. Additional disclosures will also be required on the total of incurred-but-not-reported liabilities plus expected development on reported claims, reserving methodologies, quantitative information about claim frequency, qualitative description of methodologies used for determining claim frequency and average annual percentage payout of incurred claims by age. ASU 2015-09 is effective for annual periods beginning after December 31, 2015 and interim periods within annual periods beginning after December 15, 2016. Except for the retrospective application of additional disclosure requirements, adoption of ASU 2015-09 will not impact the Company’s financial statements. In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments. ASU 2015-16 simplifies the accounting for measurement period adjustments in a business combination by requiring the acquirer to recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The effect on earnings Note 1 - Basis of Presentation (continued) as a result of the change to the provisional amounts, calculated as if the accounting had been completed as of the acquisition date, must be recorded in the reporting period in which the adjustment amounts are determined rather than retrospectively. The effects, by line item, if any, must be disclosed. The Company prospectively adopted ASU 2015-16 in the third quarter of 2015. See Note 2, “Acquisition of Business,” for the impact of adoption. The Company has adopted all other recently issued accounting pronouncements with effective dates prior to October 1, 2015. There were no adoptions of such accounting pronouncements in 2014 or during the nine months ended September 30, 2015 that had a material impact on the Company’s Condensed Consolidated Financial Statements. With the possible exceptions of ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis, and ASU 2015-09, Financial Services—Insurance (Topic 944): Disclosures about Short-Duration Contracts, the Company does not expect the adoption of all other recently issued accounting pronouncements with effective dates after September 30, 2015 to have a material impact on the Company’s financial statements.

Acquisition of Business (Notes)

Acquisition of Business (Notes)	9 Months Ended
	Sep. 30, 2015
Business Combinations [Abstract]
Acquisition of Business	Note 2 - Acquisition of Business On April 30, 2015 , Kemper acquired 100% of the outstanding common stock of Alliance United Group and its wholly-owned subsidiaries, Alliance United Insurance Company and Alliance United Insurance Services, (individually and collectively referred to herein as “Alliance United”) in a cash transaction for a total purchase price of $71.0 million , of which $17.5 million is being held in escrow to secure the sellers’ potential indemnification obligations under the purchase agreement. After completing the transaction, Kemper contributed $75.0 million to support the book of business acquired and commuted a quota share reinsurance agreement whereby Alliance United ceded a portion of its business to an unaffiliated reinsurer. The results of Alliance United are included in the Condensed Consolidated Financial Statements from the date of acquisition and are reported in the Company’s Property & Casualty Insurance segment. Alliance United is a provider of nonstandard personal automobile insurance in California. As a result of the acquisition, the Company increased its presence in the California nonstandard automobile insurance market by gaining access to additional independent agents and brokers and by gaining expertise in serving the Hispanic market. During the third quarter of 2015, the Company completed the allocation of the purchase price to the assets acquired and liabilities assumed. Based on the final allocation, goodwill increased by $4.5 million from the preliminary amount reported in the Company’s condensed consolidated financial statements at June 30, 2015. The final allocation of the purchase price to the fair values of the assets acquired and liabilities assumed is presented below. (Dollars in Millions) Investments $ 187.0 Cash 13.4 Receivables from Policyholders 44.4 Other Receivables 52.8 Value of Intangible Assets Acquired (Reported in Other Assets) 32.6 Goodwill 11.2 Current Income Taxes 1.4 Other Assets 5.9 Property and Casualty Insurance Reserves (155.8 ) Unearned Premiums (85.6 ) Liabilities for Income Taxes (1.5 ) Accrued Expenses and Other Liabilities (34.8 ) Total Purchase Price $ 71.0 Under the purchase agreement, the Company is indemnified up to $12.5 million on an after-tax basis for, among other things, breaches of customary representations and warranties, loss and LAE reserve development and pre-closing income taxes. In addition, the Company is indemnified, up to $5.0 million on an after-tax basis, for certain employment related matters. Other Receivables in the preceding table include an indemnification receivable of $5.4 million . Other Receivables in the Condensed Consolidated Balance Sheet at September 30, 2015 include an indemnification receivable of $15.9 million . Note 2 - Acquisition of Business (continued) The Company’s Condensed Consolidated Statements of Income for the six and three months ended June 30, 2015 were prepared based on provisional amounts for Insurance Expenses and Income Tax Expense. During the third quarter of 2015 , the Company recognized measurement period adjustments to these provisional amounts. In accordance with ASU 2015-16, these adjustments were included in earnings for the three months ended September 30, 2015 . If the Company had completed the purchase price allocation as of the acquisition date and recognized these measurement period adjustments in its Condensed Consolidated Statements of Income for the six and three months ended June 30, 2015 , Insurance Expenses for both the six and three months ended June 30, 2015 would have been $2.9 million lower than what was previously reported and Income Tax Expense for both the six and three months ended June 30, 2015 would have been $1.0 million higher than what was previously reported. The carrying amount, net of accumulated amortization, of the intangible assets acquired by class at September 30, 2015 and the acquisition date are as follows: (Dollars in Millions) Sep 30, At Acquisition Date Broker Relationships $ 18.4 $ 18.9 Value of In Force Policies 1.3 9.2 Other 3.9 4.5 Value of Intangible Assets Acquired $ 23.6 $ 32.6 Broker Relationships are being amortized over 15 years on a straight-line basis. Value of In Force Policies is being amortized pro ratably as premiums are earned over the remaining terms of the underlying policies. Other intangible assets acquired are generally being amortized on a straight-line basis over 2 years to 5 years .

Investments

Investments	9 Months Ended
	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investments	Note 3 - Investments The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at September 30, 2015 were: Amortized Cost Gross Unrealized Fair Value (Dollars in Millions) Gains Losses U.S. Government and Government Agencies and Authorities $ 303.6 $ 29.9 $ (2.2 ) $ 331.3 States and Political Subdivisions 1,482.3 111.4 (2.0 ) 1,591.7 Corporate Securities: Bonds and Notes 2,626.8 238.2 (27.2 ) 2,837.8 Redeemable Preferred Stocks 4.4 0.1 — 4.5 Collateralized Loan Obligations 75.1 0.4 (1.2 ) 74.3 Other Mortgage- and Asset-backed 3.8 1.5 — 5.3 Investments in Fixed Maturities $ 4,496.0 $ 381.5 $ (32.6 ) $ 4,844.9 The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2014 were: Amortized Cost Gross Unrealized Fair Value (Dollars in Millions) Gains Losses U.S. Government and Government Agencies and Authorities $ 315.2 $ 32.3 $ (2.0 ) $ 345.5 States and Political Subdivisions 1,352.5 126.4 (1.8 ) 1,477.1 Corporate Securities: Bonds and Notes 2,599.3 294.3 (15.1 ) 2,878.5 Redeemable Preferred Stocks 5.9 0.8 — 6.7 Collateralized Loan Obligations 64.9 0.3 (0.8 ) 64.4 Other Mortgage- and Asset-backed 3.9 1.5 — 5.4 Investments in Fixed Maturities $ 4,341.7 $ 455.6 $ (19.7 ) $ 4,777.6 Note 3 - Investments (continued) There were no unsettled sales of Investments in Fixed Maturities at September 30, 2015 or December 31, 2014 . Accrued Expenses and Other Liabilities included unsettled purchases of Investments in Fixed Maturities of $12.4 million at September 30, 2015 , all of which settled in the following month. There were no unsettled purchases of Investments in Fixed Maturities at December 31, 2014 . The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at September 30, 2015 by contractual maturity were: (Dollars in Millions) Amortized Cost Fair Value Due in One Year or Less $ 58.9 $ 59.8 Due after One Year to Five Years 793.8 837.6 Due after Five Years to Ten Years 1,414.0 1,459.4 Due after Ten Years 2,021.0 2,270.8 Mortgage- and Asset-backed Securities Not Due at a Single Maturity Date 208.3 217.3 Investments in Fixed Maturities $ 4,496.0 $ 4,844.9 The expected maturities of the Company’s Investments in Fixed Maturities may differ from the contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Investments in Mortgage- and Asset-backed Securities Not Due at a Single Maturity Date at September 30, 2015 consisted of securities issued by the Government National Mortgage Association with a fair value of $113.2 million , securities issued by the Federal National Mortgage Association with a fair value of $18.2 million , securities issued by the Federal Home Loan Mortgage Corporation with a fair value of $6.3 million and securities of other non-governmental issuers with a fair value of $79.6 million . Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at September 30, 2015 were: Gross Unrealized (Dollars in Millions) Cost Gains Losses Fair Value Preferred Stocks: Finance, Insurance and Real Estate $ 80.8 $ 4.4 $ (0.9 ) $ 84.3 Other Industries 21.0 2.9 (0.5 ) 23.4 Common Stocks: Finance, Insurance and Real Estate 18.4 4.1 (0.8 ) 21.7 Other Industries 9.8 6.0 (0.5 ) 15.3 Other Equity Interests: Exchange Traded Funds 198.7 0.3 (12.0 ) 187.0 Limited Liability Companies and Limited Partnerships 181.1 25.9 (3.0 ) 204.0 Investments in Equity Securities $ 509.8 $ 43.6 $ (17.7 ) $ 535.7 Note 3 - Investments (continued) Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2014 were: Gross Unrealized (Dollars in Millions) Cost Gains Losses Fair Value Preferred Stocks: Finance, Insurance and Real Estate $ 85.5 $ 5.2 $ (1.0 ) $ 89.7 Other Industries 16.3 3.5 — 19.8 Common Stocks: Manufacturing 43.4 14.9 (1.1 ) 57.2 Finance, Insurance and Real Estate 34.3 6.2 — 40.5 Other Industries 26.5 10.0 (0.4 ) 36.1 Other Equity Interests: Exchange Traded Funds 195.2 8.2 (0.7 ) 202.7 Limited Liability Companies and Limited Partnerships 160.3 27.7 (1.8 ) 186.2 Investments in Equity Securities $ 561.5 $ 75.7 $ (5.0 ) $ 632.2 There were no unsettled purchases or sales of Investments in Equity Securities at either September 30, 2015 or December 31, 2014 . An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at September 30, 2015 is presented below. Less Than 12 Months 12 Months or Longer Total (Dollars in Millions) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 75.6 $ (0.9 ) $ 24.7 $ (1.3 ) $ 100.3 $ (2.2 ) States and Political Subdivisions 160.7 (1.9 ) 0.9 (0.1 ) 161.6 (2.0 ) Corporate Securities: Bonds and Notes 605.9 (19.1 ) 119.8 (8.1 ) 725.7 (27.2 ) Collateralized Loan Obligations 44.3 (1.1 ) 0.8 (0.1 ) 45.1 (1.2 ) Other Mortgage- and Asset-backed — — 0.3 — 0.3 — Total Fixed Maturities 886.5 (23.0 ) 146.5 (9.6 ) 1,033.0 (32.6 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 2.7 — 17.2 (0.9 ) 19.9 (0.9 ) Other Industries 7.5 (0.5 ) 0.5 — 8.0 (0.5 ) Common Stocks: Finance, Insurance and Real Estate 9.9 (0.8 ) — — 9.9 (0.8 ) Other Industries 3.0 (0.5 ) — — 3.0 (0.5 ) Other Equity Interests: Exchange Traded Funds 178.2 (12.0 ) — — 178.2 (12.0 ) Limited Liability Companies and Limited Partnerships 50.9 (1.5 ) 47.3 (1.5 ) 98.2 (3.0 ) Total Equity Securities 252.2 (15.3 ) 65.0 (2.4 ) 317.2 (17.7 ) Total $ 1,138.7 $ (38.3 ) $ 211.5 $ (12.0 ) $ 1,350.2 $ (50.3 ) Note 3 - Investments (continued) The Company regularly reviews its investment portfolio for factors that may indicate that a decline in fair value of an investment is other than temporary. The portions of the declines in the fair values of investments that are determined to be other than temporary are reported as losses in the Condensed Consolidated Statements of Income in the periods when such determinations are made. Unrealized losses on fixed maturities, which the Company has determined to be temporary at September 30, 2015 , were $32.6 million , of which $9.6 million was related to fixed maturities that were in an unrealized loss position for 12 months or longer. There were no unrealized losses at September 30, 2015 related to securities for which the Company has recognized credit losses in earnings in the preceding table under the headings “Less Than 12 Months.” or “12 Months or Longer”. Investment-grade fixed maturity investments comprised $20.4 million , and below-investment-grade fixed maturity investments comprised $12.2 million of the unrealized losses on investments in fixed maturities at September 30, 2015 . For below-investment-grade fixed maturity investments in an unrealized loss position, the unrealized loss amount, on average, was less than 6% of the amortized cost basis of the investment. At September 30, 2015 , the Company did not have the intent to sell these investments and it was not more likely than not that the Company would be required to sell these investments before it recovered the amortized cost of such investments, which may be at maturity. Based on the Company’s evaluation at September 30, 2015 of the prospects of the issuers, including, but not limited to, the credit ratings of the issuers of the investments in the fixed maturities, and the Company’s intention not to sell and its determination that it would not be required to sell before it recovered the amortized cost of such investments, the Company concluded that the declines in the fair values of the Company’s investments in fixed maturities presented in the preceding table were temporary at the evaluation date. For equity securities, the Company considers various factors when determining whether a decline in the fair value is other than temporary, including, but not limited to: • The financial condition and prospects of the issuer; • The length of time and magnitude of the unrealized loss; • The volatility of the investment; • Analyst recommendations and near term price targets; • Opinions of the Company’s external investment managers; • Market liquidity; • Debt-like characteristics of perpetual preferred stocks and issuer ratings; and • The Company’s intentions to sell or ability to hold the investments until recovery. With respect to Investments in Equity Securities, the Company concluded that the unrealized losses on its investments in preferred and common stocks at September 30, 2015 were temporary based on various factors, including the relative short length and magnitude of the losses and overall market volatility. The Company’s investments in other equity interests include investments in limited liability companies and limited partnerships that primarily invest in mezzanine debt, distressed debt, and secondary transactions. By the nature of their underlying investments, the Company believes that some of its investments in the limited liability companies and limited partnerships exhibit debt-like characteristics which, among other factors, the Company also considers when evaluating these investments for impairment. Based on evaluations of the factors in the preceding paragraph, the Company concluded that the declines in the fair values of the Company’s investments in equity securities presented in the preceding table were temporary at September 30, 2015 . Note 3 - Investments (continued) An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2014 is presented below. Less Than 12 Months 12 Months or Longer Total (Dollars in Millions) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 24.9 $ (0.7 ) $ 55.5 $ (1.3 ) $ 80.4 $ (2.0 ) States and Political Subdivisions 1.0 — 126.3 (1.8 ) 127.3 (1.8 ) Corporate Securities: Bonds and Notes 250.4 (5.1 ) 360.5 (10.0 ) 610.9 (15.1 ) Collateralized Loan Obligations 51.2 (0.7 ) 3.4 (0.1 ) 54.6 (0.8 ) Other Mortgage- and Asset-backed — — 0.4 — 0.4 — Total Fixed Maturities 327.5 (6.5 ) 546.1 (13.2 ) 873.6 (19.7 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 7.5 (0.1 ) 12.1 (0.9 ) 19.6 (1.0 ) Other Industries — — 0.5 — 0.5 — Common Stocks: Manufacturing 15.1 (1.1 ) — — 15.1 (1.1 ) Other Industries 4.2 (0.4 ) 1.0 — 5.2 (0.4 ) Other Equity Interests: Exchange Traded Funds 14.9 (0.1 ) 14.4 (0.6 ) 29.3 (0.7 ) Limited Liability Companies and Limited Partnerships 54.4 (1.5 ) 6.6 (0.3 ) 61.0 (1.8 ) Total Equity Securities 96.1 (3.2 ) 34.6 (1.8 ) 130.7 (5.0 ) Total $ 423.6 $ (9.7 ) $ 580.7 $ (15.0 ) $ 1,004.3 $ (24.7 ) Unrealized losses on fixed maturities, which the Company has determined to be temporary at December 31, 2014 , were $19.7 million , of which $13.2 million was related to fixed maturities that were in an unrealized loss position for 12 months or longer. There were no unrealized losses at December 31, 2014 related to securities for which the Company has recognized credit losses in earnings in the preceding table under the headings “Less Than 12 Months” or “12 Months or Longer.” Investment-grade fixed maturity investments comprised $14.1 million and below-investment-grade fixed maturity investments comprised $5.6 million of the unrealized losses on investments in fixed maturities at December 31, 2014 . For below-investment-grade fixed maturity investments in an unrealized loss position, the unrealized loss amount, on average, was less than 4% of the amortized cost basis of the investment. At December 31, 2014 , the Company did not have the intent to sell these investments and it was not more likely than not that the Company would be required to sell these investments before recovery of its amortized cost basis, which may be at maturity. Based on the Company’s evaluation at December 31, 2014 of the prospects of the issuers, including, but not limited to, the credit ratings of the issuers of the investments in the fixed maturities, and the Company’s intention not to sell and its determination that it would not be required to sell before recovery of the amortized cost of such investments, the Company concluded that the declines in the fair values of the Company’s investments in fixed maturities presented in the preceding table were temporary at the evaluation date. With respect to Investments in Equity Securities, the Company concluded that the unrealized losses on its investments at December 31, 2014 were temporary based on various factors, including the relative short length and magnitude of the losses and overall market volatility, as well as, the debt-like characteristics of investments in certain other equity interests. Other-than-temporary impairment (“OTTI”) losses on Investments in Fixed Maturities may include a portion that is credit-related that is recognized in Retained Earnings and a portion related to factors other than credit that is recognized in Accumulated Other Comprehensive Income. The following table presents the pre-tax credit portion of OTTI losses on Note 3 - Investments (continued) Investments in Fixed Maturities held with a credit-related loss recognized as of the beginning or end of the periods presented and the changes in the cumulative balances for the periods presented. Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Period $ 5.3 $ 9.9 $ 5.3 $ 12.9 Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period — 2.4 — — Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period — 0.6 — — Reductions for Change in Impairment Status: From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell — (2.4 ) — (2.4 ) Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at End of Period $ 5.3 $ 10.5 $ 5.3 $ 10.5 Gross gains and losses on sales of investments in fixed maturities and equity securities for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Fixed Maturities: Gains on Sales $ 9.5 $ 5.0 $ 3.6 $ 0.2 Losses on Sales (0.7 ) — (0.1 ) — Equity Securities: Gains on Sales 35.7 11.7 2.8 7.9 Losses on Sales (1.4 ) — (0.7 ) — Equity Method Limited Liability Investments include investments in limited liability investment companies and limited partnerships in which the Company’s interests are not deemed minor and are accounted for under the equity method of accounting. The Company’s investments in Equity Method Limited Liability Investments are generally of a passive nature in that the Company does not take an active role in the management of the investment entity. The Company’s maximum exposure to loss at September 30, 2015 is limited to the total carrying value of $179.4 million . In addition, the Company had outstanding commitments totaling approximately $66.8 million to fund Equity Method Limited Liability Investments at September 30, 2015 . The carrying values of the Company’s Other Investments at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Loans to Policyholders at Unpaid Principal $ 286.9 $ 283.4 Real Estate at Depreciated Cost 158.2 160.9 Trading Securities at Fair Value 4.6 4.9 Other 1.3 0.4 Total $ 451.0 $ 449.6

Property and Casualty Insurance

Property and Casualty Insurance Reserves	9 Months Ended
	Sep. 30, 2015
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Property and Casualty Insurance Reserves	Note 4 - Property and Casualty Insurance Reserves Property and casualty insurance reserve activity for the nine months ended September 30, 2015 and 2014 was: Nine Months Ended (Dollars in Millions) Sep 30, Sep 30, Property and Casualty Insurance Reserves: Gross of Reinsurance at Beginning of Year $ 733.9 $ 843.5 Less Reinsurance Recoverables at Beginning of Year 54.9 63.4 Property and Casualty Insurance Reserves - Net of Reinsurance at Beginning of Year 679.0 780.1 Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification 125.4 — Incurred Losses and LAE Related to: Current Year: Continuing Operations 795.1 756.9 Prior Years: Continuing Operations (12.8 ) (44.7 ) Discontinued Operations (3.5 ) (0.2 ) Total Incurred Losses and LAE Related to Prior Years (16.3 ) (44.9 ) Total Incurred Losses and LAE 778.8 712.0 Paid Losses and LAE Related to: Current Year: Continuing Operations 483.9 460.3 Prior Years: Continuing Operations 295.4 302.6 Discontinued Operations 5.9 6.5 Total Paid Losses and LAE Related to Prior Years 301.3 309.1 Total Paid Losses and LAE 785.2 769.4 Property and Casualty Insurance Reserves - Net of Reinsurance and Indemnification at End of Period 798.0 722.7 Plus Reinsurance and Indemnification Recoverables at End of Period 54.9 58.2 Property and Casualty Insurance Reserves - Gross of Reinsurance at End of Period $ 852.9 $ 780.9 Property and casualty insurance reserves are estimated based on historical experience patterns and current economic trends. Actual loss experience and loss trends are likely to differ from these historical experience patterns and economic conditions. Loss experience and loss trends emerge over several years from the dates of loss inception. The Company monitors such emerging loss trends on a quarterly basis. Changes in such estimates are included in the Condensed Consolidated Statements of Income in the period of change. For the nine months ended September 30, 2015 , the Company reduced its property and casualty insurance reserves by $16.3 million to recognize favorable development of loss and LAE reserves from prior accident years. Personal lines insurance loss and LAE reserves developed favorably by $13.5 million , and commercial lines insurance loss and LAE reserves developed favorably by $2.8 million . The commercial lines insurance loss and LAE reserve development included adverse development of $0.7 million from continuing operations and favorable development of $3.5 million from discontinued operations. Personal automobile insurance loss and LAE reserves developed favorably by $5.6 million , homeowners insurance loss and LAE reserves developed favorably by $8.8 million , and other personal lines loss and LAE reserves developed adversely by $0.9 million . Personal lines insurance loss and LAE reserves developed favorably due primarily to the emergence of more favorable loss patterns than expected for the 2013, 2012 and 2011 accident years, partially offset by the emergence of loss patterns that were worse than expected for the 2014 accident year. Note 4 - Property and Casualty Insurance Reserves (continued) For the nine months ended September 30, 2014 , the Company reduced its property and casualty insurance reserves by $44.9 million to recognize favorable development of loss and LAE reserves from prior accident years. Personal lines insurance loss and LAE reserves developed favorably by $44.0 million , and commercial lines insurance loss and LAE reserves developed favorably by $0.9 million . The commercial lines insurance loss and LAE reserve development included favorable development of $0.7 million from continuing operations and favorable development of $0.2 million from discontinued operations. Personal automobile insurance loss and LAE reserves developed favorably by $26.9 million , homeowners insurance loss and LAE reserves developed favorably by $13.3 million , and other personal lines loss and LAE reserves developed favorably by $3.8 million . Personal lines insurance loss and LAE reserves developed favorably due primarily to the emergence of loss patterns that were more favorable than expected for the 2013, 2012 and 2011 accident years. The Company cannot predict whether loss and LAE reserves will develop favorably or unfavorably from the amounts reported in the Company’s Condensed Consolidated Financial Statements. The Company believes that any such development will not have a material effect on the Company’s consolidated shareholders’ equity, but could have a material effect on the Company’s consolidated financial results for a given period.

Debt

Debt	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Debt	Note 5 - Debt The amortized cost of debt outstanding at September 30, 2015 and December 31, 2014 was: (Dollars in Millions) Sep 30, Dec 31, Senior Notes: 6.00% Senior Notes due November 30, 2015 $ — $ 249.5 6.00% Senior Notes due May 15, 2017 358.9 358.5 4.35% Senior Notes due February 15, 2025 247.4 — 7.375% Subordinated Debentures due February 27, 2054 144.1 144.1 Total Debt Outstanding $ 750.4 $ 752.1 On June 2, 2015, Kemper amended its $225.0 million , unsecured, revolving credit agreement to, among other things, extend the expiration date to June 2, 2020. Prior to the amendment, the credit agreement was scheduled to expire on March 7, 2016. The credit agreement, as amended, provides for fixed and floating rate advances for periods up to six months at various interest rates. The credit agreement, as amended, contains various financial covenants, including limits on total debt to total capitalization, consolidated net worth and minimum risk-based capital ratios for Kemper’s largest insurance subsidiaries, Trinity Universal Insurance Company (“Trinity”) and United Insurance Company of America (“United Insurance”). Proceeds from advances under the credit agreement, as amended, may be used for general corporate purposes, including repayment of existing indebtedness. There were no outstanding borrowings under the credit agreement, as amended, at either September 30, 2015 or December 31, 2014 . Trinity and United Insurance are members of the Federal Home Loan Bank (“FHLB”) of Dallas and Chicago, respectively. As members, Trinity and United Insurance may obtain advances from the FHLB of Dallas and Chicago, respectively. Advances from the FHLB of Dallas and Chicago are subject to collateral requirements as specified in the respective agreements with Trinity and United Insurance. During the first nine months of 2015 , Trinity borrowed and repaid $20.5 million under its agreement with the FHLB of Dallas. During the first nine months of 2015 , United Insurance borrowed and repaid $21.0 million under its agreement with the FHLB of Chicago. There were no advances from the FHLB of Dallas or Chicago outstanding at either September 30, 2015 or December 31, 2014 . On February 24, 2015, Kemper issued $250.0 million of its 4.35% senior notes due February 15, 2025 (the “2025 Senior Notes”). The net proceeds of the issuance were $247.3 million , net of discount and transaction costs, for an effective yield of 4.49% . The 2025 Senior Notes are unsecured and may be redeemed in whole at any time or in part from time to time at Kemper’s option at specified redemption prices. Kemper used the net proceeds from the sale of the 2025 Senior Notes, together with available cash, to redeem in full the $250.0 million outstanding principal amount of its 6.00% Senior Notes due November 30, 2015. Kemper recognized a loss of $9.1 million before income taxes in the first quarter of 2015 from the early redemption of these senior notes. Note 5 - Debt (Continued) Interest Expense, including facility fees, accretion of discount and amortization of issuance costs, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Notes Payable under Revolving Credit Agreement $ 0.6 $ 0.6 $ 0.2 $ 0.2 Federal Home Loan Bank of Dallas — — — — Federal Home Loan Bank of Chicago — — — — Senior Notes Payable: 6.00% Senior Notes due November 30, 2015 3.7 11.6 — 3.9 6.00% Senior Notes due May 15, 2017 16.7 16.6 5.6 5.5 4.35% Senior Notes due February 15, 2025 6.7 — 2.8 — 7.375% Subordinated Debentures due February 27, 2054 8.3 6.6 2.8 2.8 Interest Expense before Capitalization of Interest 36.0 35.4 11.4 12.4 Capitalization of Interest (0.6 ) (0.8 ) (0.1 ) (0.3 ) Total Interest Expense $ 35.4 $ 34.6 $ 11.3 $ 12.1 Interest paid, including facility fees, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Notes Payable under Revolving Credit Agreement $ 1.3 $ 0.5 $ 0.2 $ 0.2 Federal Home Loan Bank of Dallas — — — — Federal Home Loan Bank of Chicago — — — — Senior Notes Payable: 6.00% Senior Notes due November 30, 2015 4.8 7.5 — — 6.00% Senior Notes due May 15, 2017 10.8 10.8 — — 4.35% Senior Notes due February 15, 2025 5.2 — 5.2 — 7.375% Subordinated Debentures due February 27, 2054 8.3 5.5 2.8 2.7 Total Interest Paid $ 30.4 $ 24.3 $ 8.2 $ 2.9

Long-term Equity-based Compensa

Long-term Equity-based Compensation Plans	9 Months Ended
	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Long-term Equity-based Compensation Plans	Note 6 - Long-term Equity-based Compensation Plans As of September 30, 2015 , there were 7,755,303 common shares available for future grants under Kemper’s long-term equity-based compensation plan, of which 538,500 shares were reserved for future grants based on the performance level attained under the terms of outstanding performance-based restricted stock and performance-based restricted stock unit (“RSU”) awards. Equity-based compensation expense was $5.4 million and $5.8 million for the nine months ended September 30, 2015 and 2014 , respectively. Total unamortized compensation expense related to nonvested awards at September 30, 2015 was $6.0 million , which is expected to be recognized over a weighted-average period of 2.0 years . Outstanding equity-based compensation awards at September 30, 2015 consisted of tandem stock option and stock appreciation rights (“Tandem Awards”), time-vested restricted stock, time-vested RSUs, performance-based restricted stock, performance-based RSUs and deferred stock units (“DSUs”). Recipients of restricted stock receive full dividend and voting rights on the same basis as all other outstanding shares of Kemper common stock. Recipients of RSUs and DSUs receive full dividend equivalents on the same basis as all other outstanding shares of Kemper common stock, but do not receive voting rights until such shares are issued. Except for equity-based compensation awards granted to each member of the Board of Directors who is not employed by the Company (“Non-employee Directors”), all outstanding awards are subject to forfeiture until certain restrictions have lapsed. Note 6 - Long-term Equity-based Compensation Plans (continued) The Company uses the Black-Scholes option pricing model to estimate the fair value of each Tandem Award on the date of grant. The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the nine months ended September 30, 2015 and 2014 were as follows: Nine Months Ended Sep 30, 2015 Sep 30, 2014 Range of Valuation Assumptions Expected Volatility 22.49 % - 41.65 % 25.76 % - 44.43 % Risk-free Interest Rate 1.08 - 1.68 1.07 - 2.14 Expected Dividend Yield 2.47 - 2.62 2.53 - 2.60 Weighted-Average Expected Life in Years Employee Grants 4 - 7 4 - 7 Director Grants 5.5 6 Tandem Award activity for the nine months ended September 30, 2015 is presented below. Shares Subject to Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Aggregate Intrinsic Value ($ in Millions) Outstanding at Beginning of the Year 2,265,711 $ 39.74 Granted 293,750 36.38 Exercised (360,875 ) 29.64 Forfeited or Expired (579,586 ) 46.46 Outstanding at September 30, 2015 1,619,000 $ 38.97 4.97 $ 1.6 Vested and Expected to Vest at September 30, 2015 1,587,940 $ 39.03 4.90 $ 1.6 Exercisable at September 30, 2015 1,263,185 $ 39.83 3.91 $ 1.5 The weighted-average grant-date fair values of Tandem Awards granted during the nine months ended September 30, 2015 and 2014 were $7.97 per option and $10.49 per option, respectively. Total intrinsic value of Tandem Awards exercised was $2.9 million and $0.3 million for the nine months ended September 30, 2015 and 2014 , respectively. The total tax benefit realized for tax deductions from exercises of Tandem Awards was $1.0 million and $0.1 million for the nine months ended September 30, 2015 and 2014 , respectively. Total cash received from exercises of Tandem Awards was $2.1 million for the nine months ended September 30, 2015 and insignificant for the same period in 2014 . Note 6 - Long-term Equity-based Compensation Plans (continued) Information pertaining to Tandem Awards outstanding at September 30, 2015 is presented below. Outstanding Exercisable Range of Exercise Prices Per Share ($) Shares Subject to Tandem Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Shares Weighted- average Exercise Price Per Share ($) $ 15.01 - $ 20.00 4,000 $ 16.48 3.60 4,000 $ 16.48 20.01 - 25.00 17,500 23.27 4.30 17,500 23.27 25.01 - 30.00 146,750 29.18 6.00 146,750 29.18 30.01 - 35.00 192,375 33.23 7.37 146,373 33.15 35.01 - 40.00 780,375 36.68 6.76 470,562 36.93 40.01 - 45.00 — — — — — 45.01 - 50.00 478,000 48.80 0.82 478,000 48.80 15.01 - 50.00 1,619,000 38.97 4.97 1,263,185 39.83 The grant-date fair values of time-based restricted stock and time-based RSU awards are determined using the closing price of Kemper common stock on the date of grant. Activity related to nonvested time-based restricted stock and nonvested time-based RSUs for the nine months ended September 30, 2015 was as follows: Time-based Restricted Stock Awards Time-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- Nonvested Balance at Beginning of the Year 53,095 $ 32.42 30,024 $ 36.60 Granted — — 67,375 36.65 Vested (18,733 ) 31.09 (16,701 ) 36.33 Forfeited (4,814 ) 29.39 (2,075 ) 36.16 Nonvested Balance at End of Period 29,548 33.76 78,623 36.71 The grant-date fair values of the performance-based restricted stock and performance-based RSU awards are determined using the Monte Carlo simulation method. Activity related to nonvested performance-based restricted stock and nonvested performance-based RSUs for the nine months ended September 30, 2015 was as follows: Performance-based Restricted Stock Awards Performance-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- Nonvested Balance at Beginning of the Year 110,625 $ 39.28 61,875 $ 40.50 Granted — — 68,825 43.05 Vested — — — — Forfeited (59,225 ) 36.81 (2,600 ) 41.68 Nonvested Balance at End of Period 51,400 42.12 128,100 41.85 Note 6 - Long-term Equity-based Compensation Plans (continued) The initial number of shares or RSUs awarded to each participant of a performance-based award represents the shares that would vest, or, in the case of an RSU, that would vest and would be issued, if the performance level attained were to be at the “target” performance level. For performance above the target level, each participant would receive a grant of additional shares of stock up to a maximum of 100% of the initial number of shares or RSUs awarded to the participant. The final payout of these awards, and any forfeitures of shares for performance below the “target” performance level, will be determined based on Kemper’s total shareholder return over a three-year performance period relative to a peer group comprised of all the companies in the S&P Supercomposite Insurance Index. The number of additional shares that would be granted if the Company were to meet or exceed the maximum performance levels related to the outstanding performance-based awards for the 2015 , 2014 and 2013 three-year performance periods is 67,625 common shares, 60,475 common shares and 51,400 common shares, respectively, at September 30, 2015 . For the 2012 three-year performance period, the Company was below the minimum performance level, and all of the related 57,775 shares of performance-based restricted stock were forfeited on January 31, 2015, the three-year anniversary of their grant date. The total fair value of the shares of restricted stock and RSUs that vested during the nine months ended September 30, 2015 was $1.4 million . The tax benefit for tax deductions realized from such shares was $0.5 million . The total fair value of the shares of restricted stock and RSUs that vested during the nine months ended September 30, 2014 and the additional shares that were issued in connection with the 2011 performance-based restricted stock awards was $3.6 million . The tax benefit for tax deductions realized from such shares was $1.2 million . The grant-date fair values of DSU awards granted to Non-employee Directors are determined using the closing price of Kemper common stock on the date of grant. DSU awards granted to Non-employee Directors are fully vested on the date of grant. Activity related to DSU awards for the nine months ended September 30, 2015 was as follows: Number of DSUs Weighted- Vested Balance at Beginning of the Year 8,000 $ 34.52 Granted and Vested 3,500 38.38 Reduction for Shares Issued on Conversion (4,500 ) 34.94 Forfeited — — Vested Balance at End of Period 7,000 36.17

Income from Continuing Operatio

Income from Continuing Operations Per Unrestricted Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Income from Continuing Operations Per Unrestricted Share	Note 7 - Income from Continuing Operations Per Unrestricted Share The Company’s awards of restricted stock contain rights to receive non-forfeitable dividends and participate in the undistributed earnings with common shareholders. The Company’s awards of RSUs and DSUs also contain rights to receive non-forfeitable dividend equivalents and participate in the undistributed earnings with common shareholders. Accordingly, the Company is required to apply the two-class method of computing basic and diluted earnings per share. A reconciliation of the numerator and denominator used in the calculation of Basic Income from Continuing Operations Per Unrestricted Share and Diluted Income from Continuing Operations Per Unrestricted Share for the nine and three months ended September 30, 2015 and 2014 is as follows: Nine Months Ended Three Months Ended Sep 30, Sep 30, Sep 30, Sep 30, (Dollars in Millions) Income from Continuing Operations $ 78.9 $ 49.3 $ 38.0 $ 4.8 Less Income from Continuing Operations Attributed to Participating Awards 0.3 0.2 0.2 — Income from Continuing Operations Attributed to Unrestricted Shares 78.6 49.1 37.8 4.8 Dilutive Effect on Income of Equity-based Compensation Equivalent Shares — — — — Diluted Income from Continuing Operations Attributed to Unrestricted Shares $ 78.6 $ 49.1 $ 37.8 $ 4.8 (Number of Shares in Thousands) Weighted-average Unrestricted Shares Outstanding 51,737.6 54,245.7 51,611.8 52,605.3 Equity-based Compensation Equivalent Shares 78.2 110.5 60.2 94.6 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 51,815.8 54,356.2 51,672.0 52,699.9 (Per Unrestricted Share in Whole Dollars) Basic Income from Continuing Operations Per Unrestricted Share $ 1.52 $ 0.90 $ 0.73 $ 0.09 Diluted Income from Continuing Operations Per Unrestricted Share $ 1.52 $ 0.90 $ 0.73 $ 0.09 The number of shares of Kemper common stock that were excluded from the calculations of Equity-based Compensation Equivalent Shares and Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution for the nine and three months ended September 30, 2015 and 2014 because the exercise prices for the options exceeded the average market price is presented below. Nine Months Ended Three Months Ended (Number of Shares in Thousands) Sep 30, Sep 30, Sep 30, Sep 30, Equity-based Compensation Equivalent Shares 1,003.4 1,540.6 833.9 1,830.5 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 1,003.4 1,540.6 833.9 1,830.5

Other Comprehensive Income (Los

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income	Note 8 - Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income The components of Other Comprehensive Income (Loss) Before Income Taxes for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Other Comprehensive Income (Loss) Before Income Taxes: Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment $ (100.1 ) $ 228.5 $ 2.3 $ 7.2 Reclassification Adjustment for Amounts Included in Net Income (30.6 ) (8.0 ) (2.3 ) (4.3 ) Unrealized Holding Gains (Losses) (130.7 ) 220.5 — 2.9 Foreign Currency Translation Adjustments (1.1 ) (0.7 ) (0.3 ) (0.5 ) Amortization of Net Unrecognized Postretirement Benefit Costs 17.3 5.9 5.8 2.0 Other Comprehensive Income (Loss) Before Income Taxes $ (114.5 ) $ 225.7 $ 5.5 $ 4.4 The components of Other Comprehensive Income Tax Benefit (Expense) for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Other Comprehensive Income Tax Benefit (Expense): Unrealized Holding Gains and Losses Arising During the Period Before Reclassification Adjustment $ 35.6 $ (80.6 ) $ (0.7 ) $ (2.6 ) Reclassification Adjustment for Amounts Included in Net Income 10.8 2.8 0.9 1.5 Unrealized Holding Gains and Losses 46.4 (77.8 ) 0.2 (1.1 ) Foreign Currency Translation Adjustments 0.4 0.3 0.1 0.2 Amortization of Net Unrecognized Postretirement Benefit Costs (6.0 ) (2.1 ) (2.1 ) (0.7 ) Other Comprehensive Income Tax Benefit (Expense) $ 40.8 $ (79.6 ) $ (1.8 ) $ (1.6 ) The components of Accumulated Other Comprehensive Income (“AOCI”) at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Net Unrealized Gains on Investments, Net of Income Taxes: Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings $ 2.1 $ 2.8 Other Net Unrealized Gains on Investments 241.2 324.8 Foreign Currency Translation Adjustments, Net of Income Taxes (0.5 ) 0.2 Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes (93.8 ) (105.1 ) Accumulated Other Comprehensive Income $ 149.0 $ 222.7 Note 8 - Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (continued) Components of AOCI were reclassified to the following lines of the Condensed Consolidated Statements of Income for the nine and three months ended September 30, 2015 and 2014 : Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Reclassification of AOCI from Net Unrealized Gains on Investments to: Net Realized Gains on Sales of Investments $ 43.1 $ 16.7 $ 5.6 $ 8.1 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Total Before Income Taxes 30.6 8.0 2.3 4.3 Income Tax Expense (10.8 ) (2.8 ) (0.9 ) (1.5 ) Reclassification from AOCI, Net of Income Taxes 19.8 5.2 1.4 2.8 Reclassification of AOCI from Amortization of Net Unrecognized Postretirement Benefit Costs to: Interest and Other Expenses (17.3 ) (5.9 ) (5.8 ) (2.0 ) Income Tax Benefit 6.0 2.1 2.1 0.7 Reclassification from AOCI, Net of Income Taxes (11.3 ) (3.8 ) (3.7 ) (1.3 ) Total Reclassification from AOCI to Net Income $ 8.5 $ 1.4 $ (2.3 ) $ 1.5

Changes in Shareholders' Equity

Changes in Shareholders' Equity (Notes)	9 Months Ended
	Sep. 30, 2015
Shareholders' Equity [Abstract]
Changes in Shareholders' Equity	Note 9 - Changes in Shareholders’ Equity Changes in Shareholders’ Equity for the nine months ended September 30, 2015 were: (Dollars in Millions, Except Per Share Amounts) Total Shareholders’ Equity at Beginning of Year $ 2,090.7 Net Income 81.1 Other Comprehensive Loss (73.7 ) Cash Dividends and Dividend Equivalents to Shareholders ($0.72 per share) (37.3 ) Repurchases of Common Stock (41.3 ) Equity-based Compensation Cost 5.4 Equity-based Awards, Net of Shares Exchanged (0.3 ) Shareholders’ Equity at End of Period $ 2,024.6

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Note 10 - Income Taxes Current and Deferred Income Tax Assets at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Current Income Tax Assets $ 12.8 $ — Deferred Income Tax Assets 9.5 — Current and Deferred Income Tax Assets $ 22.3 $ — Note 10 - Income Taxes (Continued) The components of Liabilities for Income Taxes at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Current Income Tax Liabilities $ — $ 7.8 Deferred Income Tax Liabilities — 21.5 Unrecognized Tax Benefits 3.7 7.2 Liabilities for Income Taxes $ 3.7 $ 36.5 Included in the balance of Unrecognized Tax Benefits at September 30, 2015 and December 31, 2014 are tax positions of $3.3 million and $3.4 million , respectively, for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. Because of the impact of deferred income tax accounting, other than for interest and penalties, the disallowance of the shorter deductibility period would not affect the effective income tax rate but would accelerate the payment of cash to the taxing authority to an earlier period. The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense. The liability for Unrecognized Tax Benefits included accrued interest of $0.4 million and $3.8 million at September 30, 2015 and December 31, 2014 , respectively. During the first quarter of 2015, the Company extended the federal statute of limitations for the 2007 through 2011 tax years until December 31, 2015. The extension was requested by the Internal Revenue Service (“IRS”) to provide the Joint Committee on Taxation (“JCT”) additional time to complete a review required by statute. In the second quarter of 2015, the Company received a letter indicating that the JCT had completed its review and had taken no exception to the IRS’s conclusion to accept the tax returns as filed, effectively settling the extended years. Accordingly, the Company reduced its Liability for Unrecognized Tax Benefits by $3.6 million for accrued interest and recognized an income tax benefit of $2.3 million in the second quarter of 2015. Income taxes paid were $40.1 million and $30.1 million for the nine months ended September 30, 2015 and 2014 , respectively.

Pension Benefits and Postretire

Pension Benefits and Postretirement Benefits Other Than Pensions	9 Months Ended
	Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Pension Benefits and Postretirement Benefits Other Than Pensions	Note 11 - Pension Benefits and Postretirement Benefits Other Than Pensions The components of Pension Expense for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Service Cost Earned $ 7.9 $ 6.5 $ 2.7 $ 2.1 Interest Cost on Projected Benefit Obligation 19.3 18.6 6.5 6.2 Expected Return on Plan Assets (26.3 ) (26.2 ) (8.8 ) (8.7 ) Amortization of Accumulated Net Unrecognized Pension Costs 18.3 7.3 6.1 2.5 Total Pension Expense Recognized $ 19.2 $ 6.2 $ 6.5 $ 2.1 The components of Postretirement Benefits Other than Pensions Expense (Benefit) for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Service Cost on Benefits Earned $ 0.1 $ 0.1 $ — $ — Interest Cost on Projected Benefit Obligation 0.8 0.9 0.3 0.3 Amortization of Accumulated Net Unrecognized Gain (1.1 ) (1.4 ) (0.4 ) (0.5 ) Total Postretirement Benefits Other than Pensions Expense (Benefit) $ (0.2 ) $ (0.4 ) $ (0.1 ) $ (0.2 )

Business Segments

Business Segments	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Business Segments	Note 12 - Business Segments The Company is engaged, through its subsidiaries, in the property and casualty insurance and life and health insurance businesses. The Company conducts its operations through two operating segments: Property & Casualty Insurance and Life & Health Insurance. The Property & Casualty Insurance segment’s principal products are personal automobile insurance, both preferred and nonstandard risk, homeowners insurance, other personal insurance and commercial automobile insurance. These products are primarily distributed through independent agents and brokers, employer-sponsored voluntary benefit programs and other affinity relationships. The Life & Health Insurance segment’s principal products are individual life, accident, health and property insurance. These products are distributed by career agents employed by the Company as well as exclusive and non-exclusive independent agents and brokers. Earned Premiums by product line for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Personal Automobile $ 730.9 $ 633.4 $ 288.5 $ 205.1 Homeowners 216.3 236.6 72.1 77.9 Other Personal Property and Casualty Insurance 92.0 96.2 30.7 31.8 Commercial Automobile 40.7 40.8 13.7 14.1 Life 279.5 291.6 95.5 96.8 Accident and Health 108.7 112.1 36.2 37.1 Total Earned Premiums $ 1,468.1 $ 1,410.7 $ 536.7 $ 462.8 Segment Revenues, including a reconciliation to Total Revenues, for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Revenues: Property & Casualty Insurance: Earned Premiums $ 1,023.1 $ 949.5 $ 386.1 $ 309.7 Net Investment Income 51.7 55.6 18.3 18.5 Other Income 0.5 0.4 0.1 0.1 Total Property & Casualty Insurance 1,075.3 1,005.5 404.5 328.3 Life & Health Insurance: Earned Premiums 445.0 461.2 150.6 153.1 Net Investment Income 159.0 147.4 55.1 49.2 Other Income 1.7 0.4 0.7 0.4 Total Life & Health Insurance 605.7 609.0 206.4 202.7 Total Segment Revenues 1,681.0 1,614.5 610.9 531.0 Net Realized Gains on Sales of Investments 42.7 18.1 5.3 8.0 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Other 12.6 13.0 2.5 4.6 Total Revenues $ 1,723.8 $ 1,636.9 $ 615.4 $ 539.8 Note 12 - Business Segments (continued) Segment Operating Profit, including a reconciliation to Income from Continuing Operations before Income Taxes, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Segment Operating Profit (Loss): Property & Casualty Insurance $ 34.6 $ (8.9 ) $ 25.0 $ (23.9 ) Life & Health Insurance 82.4 90.7 35.4 31.4 Total Segment Operating Profit 117.0 81.8 60.4 7.5 Corporate and Other Operating Loss (36.2 ) (24.1 ) (12.6 ) (7.7 ) Total Operating Profit (Loss) 80.8 57.7 47.8 (0.2 ) Net Realized Gains on Sales of Investments 42.7 18.1 5.3 8.0 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Loss from Early Extinguishment of Debt (9.1 ) — — — Income from Continuing Operations before Income Taxes $ 101.9 $ 67.1 $ 49.8 $ 4.0 Segment Net Operating Income, including a reconciliation to Income from Continuing Operations, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Segment Net Operating Income (Loss): Property & Casualty Insurance $ 31.8 $ (0.4 ) $ 21.0 $ (13.6 ) Life & Health Insurance 53.9 58.3 23.5 20.3 Total Segment Net Operating Income 85.7 57.9 44.5 6.7 Corporate and Other Net Operating Loss (20.6 ) (14.7 ) (7.9 ) (4.6 ) Consolidated Net Operating Income 65.1 43.2 36.6 2.1 Net Income (Loss) From: Net Realized Gains on Sales of Investments 27.8 11.8 3.5 5.2 Net Impairment Losses Recognized in Earnings (8.1 ) (5.7 ) (2.1 ) (2.5 ) Loss from Early Extinguishment of Debt (5.9 ) — — — Income from Continuing Operations $ 78.9 $ 49.3 $ 38.0 $ 4.8

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 13 - Fair Value Measurements The Company classifies its investments in Fixed Maturities and Equity Securities as available for sale and reports these investments at fair value. The Company has elected the fair value option method of accounting for investments in certain hedge funds and, accordingly, reports these investments at fair value. The Company classifies certain investments in mutual funds included in Other Investments as trading securities and reports these investments at fair value. The Company has no material liabilities that are measured and reported at fair value. The valuation of assets measured at fair value in the Company’s Condensed Consolidated Balance Sheet at September 30, 2015 is summarized below. Fair Value Measurements (Dollars in Millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 128.0 $ 203.3 $ — $ 331.3 States and Political Subdivisions — 1,591.7 — 1,591.7 Corporate Securities: Bonds and Notes — 2,409.3 428.5 2,837.8 Redeemable Preferred Stocks — — 4.5 4.5 Collateralized Loan Obligations — — 74.3 74.3 Other Mortgage- and Asset-backed — 1.4 3.9 5.3 Total Investments in Fixed Maturities 128.0 4,205.7 511.2 4,844.9 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 79.3 5.0 84.3 Other Industries — 6.8 16.6 23.4 Common Stocks: Finance, Insurance and Real Estate 16.4 5.3 — 21.7 Other Industries 0.4 — 14.9 15.3 Other Equity Interests: Exchange Traded Funds 187.0 — — 187.0 Limited Liability Companies and Limited Partnerships — — 204.0 204.0 Total Investments in Equity Securities 203.8 91.4 240.5 535.7 Fair Value Option Investments: Limited Liability Companies and Limited Partnerships Hedge Funds — — 166.1 166.1 Other Investments: Trading Securities 4.6 — — 4.6 Total $ 336.4 $ 4,297.1 $ 917.8 $ 5,551.3 At September 30, 2015 , the Company had unfunded commitments to invest an additional $119.3 million in certain limited liability investment companies and limited partnerships that will be included in Other Equity Interests when funded. Note 13 - Fair Value Measurements (continued) The valuation of assets measured at fair value in the Company’s Condensed Consolidated Balance Sheet at December 31, 2014 is summarized below. Fair Value Measurements (Dollars in Millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 129.2 $ 216.3 $ — $ 345.5 States and Political Subdivisions — 1,477.1 — 1,477.1 Corporate Securities: Bonds and Notes — 2,517.9 360.6 2,878.5 Redeemable Preferred Stocks — — 6.7 6.7 Collateralized Loan Obligations — — 64.4 64.4 Other Mortgage- and Asset-backed — 1.5 3.9 5.4 Total Investments in Fixed Maturities 129.2 4,212.8 435.6 4,777.6 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 84.7 5.0 89.7 Other Industries — 3.4 16.4 19.8 Common Stocks: Manufacturing 50.9 5.7 0.6 57.2 Finance, Insurance and Real Estate 34.8 0.1 5.6 40.5 Other Industries 24.2 0.7 11.2 36.1 Other Equity Interests: Exchange Traded Funds 202.7 — — 202.7 Limited Liability Companies and Limited Partnerships — — 186.2 186.2 Total Investments in Equity Securities 312.6 94.6 225.0 632.2 Fair Value Option Investments: Limited Liability Companies and Limited Partnership Hedge Funds — — 53.3 53.3 Other Investments: Trading Securities 4.9 — — 4.9 Total $ 446.7 $ 4,307.4 $ 713.9 $ 5,468.0 The Company’s investments in Fixed Maturities that are classified as Level 1 in the two preceding tables primarily consist of U.S. Treasury Bonds and Notes. The Company’s investments in Equity Securities that are classified as Level 1 in the two preceding tables consist of either investments in publicly-traded common stocks or exchange traded funds. The Company’s investments in Fixed Maturities that are classified as Level 2 in the two preceding tables primarily consist of investments in corporate bonds, obligations of states and political subdivisions, and bonds and mortgage-backed securities of U.S. government agencies. The Company’s investments in Equity Securities that are classified as Level 2 in the two preceding tables primarily consist of investments in preferred stocks. The Company uses a leading, nationally recognized provider of market data and analytics to price the vast majority of the Company’s Level 2 measurements. The provider utilizes evaluated pricing models that vary by asset class and incorporate available trade, bid and other market information. Because many fixed maturity securities do not trade on a daily basis, the provider’s evaluated pricing applications apply available information through processes such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare evaluations. In addition, the provider uses model processes to develop prepayment and interest rate scenarios. The pricing provider’s models and Note 13 - Fair Value Measurements (continued) processes also take into account market convention. For each asset class, teams of its evaluators gather information from market sources and integrate relevant credit information, perceived market movements and sector news into the evaluated pricing applications and models. The Company generally validates the measurements obtained from its primary pricing provider by comparing them with measurements obtained from one additional pricing provider that provides either prices from recent market transactions, quotes in inactive markets or evaluations based on its own proprietary models. The Company investigates significant differences related to the values provided. On completion of its investigation, management exercises judgment to determine the price selected and whether adjustments, if any, to the price obtained from the Company’s primary pricing provider would warrant classification of the price as Level 3. In instances where a measurement cannot be obtained from either pricing provider, the Company generally will evaluate bid prices from one or more binding quotes obtained from market makers to value investments in inactive markets and classified by the Company as Level 2. The Company generally classifies securities when it receives non-binding quotes or indications as Level 3 securities unless the Company can validate the quote or indication against recent transactions in the market. The Company’s Investments in Fixed Maturities that are classified as Level 3 in the two preceding tables primarily consist of privately placed securities not rated by a Nationally Recognized Statistical Rating Organization and are priced primarily using a market yield approach. A market yield approach uses a risk-free rate plus a credit spread depending on the underlying credit profile of the security. For floating rate securities, the risk-free rate used in the market yield is the contractual floating rate of the security. For each individual security, the Company or the Company’s third party appraiser gathers information from market sources, relevant credit information, perceived market movements and sector news and determines an appropriate market yield for each security. The market yield selected is then used to discount the estimated future cash flows of the security to determine the fair value. The Company separately evaluates market yields based upon asset class to assess the reasonableness of the recorded fair value. For non-investment-grade Investments in Fixed Maturities that are classified as Level 3, the two primary asset classes are senior debt and junior debt. Senior debt includes those securities that receive first priority in a liquidation and junior debt includes any fixed maturity security with other than first priority in a liquidation. The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at September 30, 2015 . (Dollars in Millions) Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted-average Yield Investment-grade Market Yield $ 109.5 2.4 % - 6.9 % 4.2 % Non-investment-grade: Senior Debt Market Yield 107.3 5.8 - 14.6 9.9 Junior Debt Market Yield 202.3 8.0 - 25.2 13.5 Collateralized Loan Obligations Market Yield 74.3 3.0 - 9.0 5.4 Other Various 17.8 Total Fixed Maturity Investments in Corporate Securities $ 511.2 Note 13 - Fair Value Measurements (continued) The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at December 31, 2014 . (Dollars in Millions) Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted-average Yield Investment-grade Market Yield $ 107.0 2.8 % - 6.9 % 3.9 % Non-investment-grade: Senior Debt Market Yield 92.7 3.8 - 14.5 10.6 Junior Debt Market Yield 149.9 8.2 - 21.0 13.4 Collateralized Loan Obligations Market Yield 64.4 2.7 - 8.1 5.2 Other Debt Various 21.6 Total Fixed Maturity Investments in Corporate Securities $ 435.6 For an investment in a fixed maturity security, an increase in the yield used to determine the fair value of the security will decrease the fair value of the security. A decrease in the yield used to determine fair value will increase the fair value of the security, but the fair value increase is generally limited to par, unless callable at a premium, if the security is currently callable. The Company’s other investments that are classified as Level 3 primarily consist of Limited Liability Companies and Limited Partnerships, but also certain Preferred Stocks and Common Stocks. The Company either uses valuations provided by third party fund managers or third party appraisers, or that are generated internally. These valuations typically employ various valuation techniques commonly used in the industry, including earnings multiples based on comparable public securities, industry-specific non-earnings based multiples, market yields based on comparable public securities and discounted cash flow models. Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the nine months ended September 30, 2015 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (3.5 ) (1.3 ) 0.5 — (1.2 ) (0.5 ) 1.8 (4.2 ) Included in Other Comprehensive Income (3.4 ) (0.6 ) (0.3 ) — 1.6 (1.3 ) — (4.0 ) Purchases 184.7 — 24.7 1.3 7.2 48.4 111.0 377.3 Settlements (35.2 ) (0.3 ) (7.5 ) (0.1 ) (0.5 ) (32.9 ) — (76.5 ) Sales (62.4 ) — (7.5 ) (1.2 ) (1.8 ) — — (72.9 ) Transfers into Level 3 — — — — 0.8 4.1 — 4.9 Transfers out of Level 3 (12.3 ) — — — (8.4 ) — — (20.7 ) Balance at End of Period $ 428.5 $ 4.5 $ 74.3 $ 3.9 $ 36.5 $ 204.0 $ 166.1 $ 917.8 Note 13 - Fair Value Measurements (continued) Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the three months ended September 30, 2015 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 406.6 $ 5.4 $ 70.4 $ 4.0 $ 37.7 $ 199.9 $ 160.0 $ 884.0 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (0.4 ) (0.8 ) 0.1 — — 0.6 (0.9 ) (1.4 ) Included in Other Comprehensive Income (2.0 ) — (1.5 ) (0.1 ) (0.6 ) (1.0 ) — (5.2 ) Purchases 59.4 — 5.3 — 0.2 18.1 7.0 90.0 Settlements (28.3 ) (0.1 ) — — (0.2 ) (13.6 ) — (42.2 ) Sales (6.8 ) — — — (0.6 ) — — (7.4 ) Balance at End of Period $ 428.5 $ 4.5 $ 74.3 $ 3.9 $ 36.5 $ 204.0 $ 166.1 $ 917.8 The Company’s policy is to recognize transfers between levels as of the end of the reporting period. There were no transfers between Levels 1 and 2 or Levels 1 and 3 for the nine and three months ended September 30, 2015 . Of the $4.9 million transfers into Level 3 for the nine months ended September 30, 2015 , $4.1 million relates to an investment that changed from an Equity Method Limited Liability investment to Other Equity Interest at Fair Value. All other transfers into or out of Level 3 for the nine months ended September 30, 2015 were due to changes in the availability of market observable inputs. There were no transfers into or out of Level 3 for the three months ended September 30, 2015 . Note 13 - Fair Value Measurements (continued) Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the nine months ended September 30, 2014 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 364.1 $ 7.4 $ 44.7 $ 4.5 $ 32.1 $ 173.9 $ — $ 626.7 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (4.1 ) — 0.1 0.1 3.1 — 0.6 (0.2 ) Included in Other Comprehensive Income 4.0 0.4 (0.4 ) 0.2 3.0 29.7 — 36.9 Purchases 117.6 — 18.1 — 2.8 38.6 50.0 227.1 Settlements (92.4 ) (0.4 ) — (0.8 ) (3.6 ) (21.8 ) — (119.0 ) Sales (47.6 ) — — — (2.2 ) (2.7 ) — (52.5 ) Transfers out of Level 3 (0.6 ) — — — — — — (0.6 ) Balance at End of Period $ 341.0 $ 7.4 $ 62.5 $ 4.0 $ 35.2 $ 217.7 $ 50.6 $ 718.4 Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the three months ended September 30, 2014 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Total Balance at Beginning of Period $ 384.8 $ 7.1 $ 49.5 $ 3.9 $ 36.3 $ 194.4 $ 40.3 $ 716.3 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (1.8 ) — — — 0.8 0.3 0.3 (0.4 ) Included in Other Comprehensive Income (1.4 ) 0.5 (0.3 ) 0.1 1.0 19.2 — 19.1 Purchases 31.7 — 13.3 — 0.1 12.3 10.0 67.4 Settlements (41.6 ) (0.2 ) — — (0.8 ) (8.2 ) — (50.8 ) Sales (30.7 ) — — — (2.2 ) (0.3 ) — (33.2 ) Balance at End of Period $ 341.0 $ 7.4 $ 62.5 $ 4.0 $ 35.2 $ 217.7 $ 50.6 $ 718.4 There were no transfers between Levels 1 and 2 or Levels 1 and 3 for the nine and three months ended September 30, 2014 . Transfers out of Level 3 for the nine months ended September 30, 2014 were due to changes in the availability of market observable inputs. There were no transfers into Level 3 for the nine months ended September 30, 2014 . There were no transfers into or out of Level 3 for the three months ended September 30, 2014 . The fair value of Debt is estimated using quoted prices for similar liabilities in markets that are not active. The inputs used in the valuation are considered Level 2 measurements. The fair value of Short-term Investments is estimated using inputs that are considered either Level 1 or Level 2 measurements.

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Note 14 - Contingencies In the ordinary course of its businesses, the Company is involved in legal proceedings, including lawsuits, regulatory examinations and inquiries. Except with regard to the matters discussed below, based on currently available information, the Company does not believe that it is reasonably possible that any of its pending legal proceedings will have a material effect on the Company’s condensed consolidated financial statements. Over the last several years, certain state insurance regulators, legislators, treasurers/controllers, and their respective agents have pursued an array of initiatives that seek, in various ways, to impose new duties on life insurance companies to proactively search for deaths of their insureds and contact the insureds’ beneficiaries even though such beneficiaries may not have submitted claims, including due proof of death, as required under the terms of state-approved policy forms. These initiatives together comprise a set of circumstances involving potential changes in the law or changes in the interpretation of existing laws that could have the effect of altering the terms of Kemper’s life insurance subsidiaries’ (the “Life Companies”) existing life insurance contracts by imposing new requirements that did not exist and were not contemplated at the time the Life Companies entered into such contracts. Legislation. One type of initiative involves legislation (the “DMF Statutes”). DMF Statutes have been enacted in ten states, with varying effective dates, that require life insurance companies to compare on a regular basis their records for all in-force policies (including policies issued prior to the effective dates of the DMF Statute) against the database of reported deaths maintained by the Social Security Administration or a comparable database (a “Death Master File”). In contrast, four other states have enacted DMF Statutes that also require such comparisons, but exempt life insurance companies, like the Life Companies, that have not previously utilized a Death Master File, and instead only require that such companies conduct Death Master File comparisons for life insurance policies issued and delivered in each of those states after the DMF Statute’s effective date. Likewise, five additional states have enacted DMF Statutes that require such comparisons, but only with respect to policies issued on or after their respective effective dates, without regard to prior Death Master File use. With respect to those DMF Statutes that apply retroactively and would likely have an adverse effect on the Company’s operations and financial position, the Life Companies have filed declaratory judgment actions challenging the application of such statutes to policies issued prior to the subject DMF Statute’s effective date: • In November 2012, certain of the Life Companies filed a declaratory judgment action in Kentucky state court, asking the court to construe the Kentucky DMF Statute to apply only prospectively, i.e., only to life insurance policies issued in Kentucky on or after the effective date of the Kentucky DMF Statute, consistent with what the Life Companies believe are the requirements of applicable Kentucky statutory law, the Kentucky Constitution and the Contract Clause of the United States Constitution. In April 2013, the trial court held that the Kentucky DMF Statute does apply to life insurance policies issued before the statute’s January 1, 2013 effective date. The subject Life Companies appealed this decision and in August 2014, in a unanimous opinion, the Kentucky Court of Appeals reversed the trial court and held that the Kentucky DMF statute fell within Kentucky’s statutory presumption against retroactive laws. Therefore, the Court ruled, the Kentucky DMF Statute can only apply to policies issued on or after January 1, 2013. In August 2015, the Kentucky Supreme Court granted discretionary review of the Court of Appeal’s ruling. A decision by the Kentucky Supreme Court is unlikely before the second quarter of 2016. During the pendency of this appeal process, a court-issued stay provides that the subject Life Companies do not need to comply with the Kentucky DMF Statute with respect to life insurance policies issued before the statute’s effective date. • In July 2013, certain of the Life Companies filed a declaratory judgment action in state court in Maryland, asking the court to construe the Maryland DMF Statute to apply only prospectively, consistent with what the Life Companies believe are the requirements of Maryland’s common law presumption against retroactive application of new laws, the Maryland Constitution and the Contract Clause of the United States Constitution. The Maryland Insurance Administration filed a motion to dismiss, contending that the subject Life Companies were required to exhaust their administrative remedies before filing an action in court. In March 2014, the trial court granted the Maryland Insurance Administration’s motion and the Life Companies appealed that ruling. The Maryland appellate courts declined to stay enforcement of the Maryland DMF Statute pending the appeal, and the Life Companies are complying with the Maryland DMF Statute while they pursue their appeal. The Life Companies’ appeal was denied by the Maryland Court of Special Appeals in October 2015. The Life Companies intend to seek review of this decision by Maryland’s highest court, the Court of Appeals. Note 14 - Contingencies (continued) Unclaimed property compliance audits/litigation. A second type of initiative involves an unclaimed property compliance audit of the Life Companies (the “Treasurers’ Audit”) being conducted by a private audit firm retained by the treasurers/controllers of 38 states (the “Audit Firm”) and related litigation. In July 2013, the California State Controller (the “CA Controller”) filed a complaint for injunctive relief against the Life Companies in state court in California, seeking an order requiring the Life Companies to produce all of their in-force policy records to the Audit Firm to enable the firm to perform a comparison of such records against a Death Master File and to ascertain whether any of the insureds under such policies may be deceased. In December 2013, the CA Controller filed a motion for preliminary injunction seeking the same injunctive relief. A hearing on that motion was continued until the California Court of Appeal ruled in a similar case involving an unaffiliated insurance company (the “ANICO Appeal”). In July 2014, the court granted a motion by the CA Controller to stay the litigation against the Life Companies pending a decision in the ANICO Appeal; as described below, the Life Companies have filed a counterclaim in this case. In March 2015, the California Court of Appeal reversed the order granting the preliminary injunction to the CA Controller in the ANICO Appeal. In light of the result in the ANICO Appeal, the stay of the litigation involving the Life Companies was lifted, and the CA Controller withdrew its motion for preliminary injunction and discovery activity has resumed. Pending the outcome of this litigation, the Life Companies have not produced their in-force policy records to the CA Controller. In October 2015, certain of the Life Companies filed a complaint for injunctive and other relief in state court in Illinois seeking a declaration that the Treasurer of the State of Illinois lacks the authority to compel those Life Companies to produce all in-force policy records to the Audit Firm and, further, that life insurance proceeds become unclaimed property subject to escheat to Illinois five years after the insurer receives a claim and proof of death or the insured attains the mortality limiting age, and not five years after the date of the insured’s death. This complaint was filed in connection with an ongoing audit by the Treasurer and in response to a recent demand for production of all in-force policy records. Examinations/enforcement actions by regulators. A third type of initiative involves examinations by state insurance regulators. The Life Companies are the subject of a pending multi-state market conduct examination by five state insurance regulators that is focused on the Life Companies’ claim settlement and policy administration practices, and specifically their compliance with state unclaimed property statutes (the “Multi-State Exam”). The Multi-State Exam originated in June 2012 as a single-state examination by the Illinois Department of Insurance. Insurance regulators from five additional states - California, Florida, New Hampshire, North Dakota and Pennsylvania - joined the examination in May 2013 (New Hampshire withdrew in 2014). In July 2013, the Life Companies received requests from the Illinois Department of Insurance, as the managing lead state for the Multi-State Exam, for a significant volume of information beyond that which the Life Companies had already produced, including the records of all in-force policies and other information of the type previously requested by the Audit Firm as part of the Treasurers’ Audit and which is the subject of the CA Controller’s litigation; this request prompted the Illinois litigation noted below. Pending related litigation. In September 2013, certain of the Life Companies filed declaratory judgment actions against the insurance regulators in the states of California, Florida, Illinois and Pennsylvania, asking the courts in those states to declare that applicable law does not require life insurers to search a Death Master File to ascertain whether insureds are deceased. The subject Life Companies are also asking the courts to declare that regulators in those states do not have the legal authority to (i) obtain life insurers’ policy records for the purpose of comparing those records against a Death Master File, and/or (ii) impose payment obligations on life insurers before a claim and due proof of death have been submitted by policy beneficiaries or the insured reaches the mortality limiting age specified therein. The declaratory judgment action in California referenced above was filed as a cross-complaint to the CA Controller’s complaint, and joined the California Insurance Commissioner and the Audit Firm as defendants. The CA Controller filed a motion to dismiss the Life Companies’ cross-complaint but withdrew the motion following the ruling in the ANICO Appeal. In response to the Illinois declaratory judgment action, the Illinois Department of Insurance and its Director (collectively, the “IDOI”) filed a motion to dismiss, and in July 2014, the court in Illinois denied, in part, such motion. Specifically, the court denied the motion to dismiss the Life Companies’ claim seeking a declaration that the IDOI cannot compel the Life Companies to provide their policy records to the IDOI or persons acting on the IDOI’s behalf so as to permit a comparison against a Death Master File for purposes of identifying deceased insureds, as well as the Life Companies’ associated claim for injunctive relief; the court dismissed the other counts in the complaint. In August 2014, the IDOI filed its answer to the remaining counts, and in October 2014, the Life Companies filed a motion for summary judgment with respect to those counts. The IDOI filed a cross motion for summary judgment in December 2014. The parties engaged in discovery and the summary judgment motions are pending. The actions against the insurance regulators in the states of Florida and Note 14 - Contingencies (continued) Pennsylvania remain stayed by agreement of the parties pending the outcome of the Illinois action. Pending the resolution of this litigation, the Life Companies have not produced their in-force policy records in connection with the Multi-State Exam. Conclusion. The results of the aforementioned legislative actions, Treasurers’ Audit, Multi-State Exam and the related litigation cannot currently be predicted. The Life Companies continue to maintain that states lack the legal authority to establish new requirements that would effectively change the terms of existing life insurance contracts with regard to basic claims handling obligations and processes. If state officials are able to impose such new requirements retroactively upon the Life Companies’ existing life insurance policies, it will fundamentally alter the nature and timing of the Life Companies’ responsibilities under such policies by essentially eliminating contractual terms that condition claim settlement and payment on the receipt of a claim, including “due proof of death” of an insured. The outcomes of the various initiatives and related litigation could result in changes in the law that could have the effect of altering the terms of the Life Companies’ existing life insurance contracts by imposing new requirements that have a significant impact on, including acceleration of, the Life Companies’ payment and/or escheatment of policy benefits, and materially increase claims handling costs. Any attempt to predict the ultimate outcomes (including any estimate of the resulting effect on claim liabilities and reserves for future policy benefits) of these efforts to change the law would entail predicting on a state-by-state-basis numerous uncertainties including, but not limited to: • How many states eventually enact laws or interpret existing laws to require the use of a Death Master File or may exact such usage through regulation, examinations or audits; • The matching criteria to be used in comparing records of the Life Companies against a Death Master File; • The universe of policies affected; • Whether and to what extent any such laws would be applied retroactively; and • The results of unclaimed property audits, examinations and other actions by state insurance regulators and litigation, including challenges to the constitutionality of laws purporting to have retroactive application. Due to the complexity and multi-jurisdictional nature of this issue, as well as the indeterminate number of potential outcomes and their uncertain effects on the Life Companies’ business, Kemper cannot reasonably estimate the amount of loss that it would recognize if the Life Companies were subjected to requirements of the types described in this Note on a retroactive basis.

Related Parties

Related Parties	9 Months Ended
	Sep. 30, 2015
Related Party Transactions [Abstract]
Related Parties	Note 15 - Related Parties Mr. Christopher B. Sarofim, a director of Kemper, is Vice Chairman and a member of the board of directors of Fayez Sarofim & Co. (“FS&C”), a registered investment advisory firm. FS&C provided investment management services with respect to certain assets of Kemper’s subsidiary, Trinity, under an agreement between the parties. During the second quarter of 2015, Trinity disposed of all the assets managed by FS&C. Investment expenses incurred in connection with such agreement were $0.1 million and $0.3 million for the nine months ended September 30, 2015 and 2014 , respectively. FS&C also provides investment management services with respect to certain funds of the Company’s defined benefit pension plan. The Company’s defined benefit pension plan had $149.5 million in assets managed by FS&C at September 30, 2015 under an agreement with FS&C whereby FS&C provides investment management services. Investment expenses incurred in connection with such agreement were $0.3 million for each of the nine month periods ended September 30, 2015 and 2014 . The Company believes that the services described above have been provided on terms no less favorable to the Company than could have been negotiated with non-affiliated third parties.

Acquisition of Business (Tables

Acquisition of Business (Tables)	9 Months Ended
	Sep. 30, 2015
Business Combinations [Abstract]
Schedule of Intangible Assets Acquired by Class [Table Text Block]	(Dollars in Millions) Sep 30, At Acquisition Date Broker Relationships $ 18.4 $ 18.9 Value of In Force Policies 1.3 9.2 Other 3.9 4.5 Value of Intangible Assets Acquired $ 23.6 $ 32.6
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	(Dollars in Millions) Investments $ 187.0 Cash 13.4 Receivables from Policyholders 44.4 Other Receivables 52.8 Value of Intangible Assets Acquired (Reported in Other Assets) 32.6 Goodwill 11.2 Current Income Taxes 1.4 Other Assets 5.9 Property and Casualty Insurance Reserves (155.8 ) Unearned Premiums (85.6 ) Liabilities for Income Taxes (1.5 ) Accrued Expenses and Other Liabilities (34.8 ) Total Purchase Price $ 71.0

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Investments Classified by Contractual Maturity Date [Table Text Block]	The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at September 30, 2015 by contractual maturity were: (Dollars in Millions) Amortized Cost Fair Value Due in One Year or Less $ 58.9 $ 59.8 Due after One Year to Five Years 793.8 837.6 Due after Five Years to Ten Years 1,414.0 1,459.4 Due after Ten Years 2,021.0 2,270.8 Mortgage- and Asset-backed Securities Not Due at a Single Maturity Date 208.3 217.3 Investments in Fixed Maturities $ 4,496.0 $ 4,844.9
Schedule of Unrealized Loss on Investments [Table Text Block]	An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2014 is presented below. Less Than 12 Months 12 Months or Longer Total (Dollars in Millions) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 24.9 $ (0.7 ) $ 55.5 $ (1.3 ) $ 80.4 $ (2.0 ) States and Political Subdivisions 1.0 — 126.3 (1.8 ) 127.3 (1.8 ) Corporate Securities: Bonds and Notes 250.4 (5.1 ) 360.5 (10.0 ) 610.9 (15.1 ) Collateralized Loan Obligations 51.2 (0.7 ) 3.4 (0.1 ) 54.6 (0.8 ) Other Mortgage- and Asset-backed — — 0.4 — 0.4 — Total Fixed Maturities 327.5 (6.5 ) 546.1 (13.2 ) 873.6 (19.7 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 7.5 (0.1 ) 12.1 (0.9 ) 19.6 (1.0 ) Other Industries — — 0.5 — 0.5 — Common Stocks: Manufacturing 15.1 (1.1 ) — — 15.1 (1.1 ) Other Industries 4.2 (0.4 ) 1.0 — 5.2 (0.4 ) Other Equity Interests: Exchange Traded Funds 14.9 (0.1 ) 14.4 (0.6 ) 29.3 (0.7 ) Limited Liability Companies and Limited Partnerships 54.4 (1.5 ) 6.6 (0.3 ) 61.0 (1.8 ) Total Equity Securities 96.1 (3.2 ) 34.6 (1.8 ) 130.7 (5.0 ) Total $ 423.6 $ (9.7 ) $ 580.7 $ (15.0 ) $ 1,004.3 $ (24.7 ) An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at September 30, 2015 is presented below. Less Than 12 Months 12 Months or Longer Total (Dollars in Millions) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 75.6 $ (0.9 ) $ 24.7 $ (1.3 ) $ 100.3 $ (2.2 ) States and Political Subdivisions 160.7 (1.9 ) 0.9 (0.1 ) 161.6 (2.0 ) Corporate Securities: Bonds and Notes 605.9 (19.1 ) 119.8 (8.1 ) 725.7 (27.2 ) Collateralized Loan Obligations 44.3 (1.1 ) 0.8 (0.1 ) 45.1 (1.2 ) Other Mortgage- and Asset-backed — — 0.3 — 0.3 — Total Fixed Maturities 886.5 (23.0 ) 146.5 (9.6 ) 1,033.0 (32.6 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 2.7 — 17.2 (0.9 ) 19.9 (0.9 ) Other Industries 7.5 (0.5 ) 0.5 — 8.0 (0.5 ) Common Stocks: Finance, Insurance and Real Estate 9.9 (0.8 ) — — 9.9 (0.8 ) Other Industries 3.0 (0.5 ) — — 3.0 (0.5 ) Other Equity Interests: Exchange Traded Funds 178.2 (12.0 ) — — 178.2 (12.0 ) Limited Liability Companies and Limited Partnerships 50.9 (1.5 ) 47.3 (1.5 ) 98.2 (3.0 ) Total Equity Securities 252.2 (15.3 ) 65.0 (2.4 ) 317.2 (17.7 ) Total $ 1,138.7 $ (38.3 ) $ 211.5 $ (12.0 ) $ 1,350.2 $ (50.3 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]	and the changes in the cumulative balances for the periods presented. Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Period $ 5.3 $ 9.9 $ 5.3 $ 12.9 Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period — 2.4 — — Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period — 0.6 — — Reductions for Change in Impairment Status: From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell — (2.4 ) — (2.4 ) Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at End of Period $ 5.3 $ 10.5 $ 5.3 $ 10.5
Schedule of Realized Gain (Loss) [Table Text Block]	Gross gains and losses on sales of investments in fixed maturities and equity securities for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Fixed Maturities: Gains on Sales $ 9.5 $ 5.0 $ 3.6 $ 0.2 Losses on Sales (0.7 ) — (0.1 ) — Equity Securities: Gains on Sales 35.7 11.7 2.8 7.9 Losses on Sales (1.4 ) — (0.7 ) —
Schedule of Other Investments [Table Text Block]	The carrying values of the Company’s Other Investments at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Loans to Policyholders at Unpaid Principal $ 286.9 $ 283.4 Real Estate at Depreciated Cost 158.2 160.9 Trading Securities at Fair Value 4.6 4.9 Other 1.3 0.4 Total $ 451.0 $ 449.6
Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at September 30, 2015 were: Amortized Cost Gross Unrealized Fair Value (Dollars in Millions) Gains Losses U.S. Government and Government Agencies and Authorities $ 303.6 $ 29.9 $ (2.2 ) $ 331.3 States and Political Subdivisions 1,482.3 111.4 (2.0 ) 1,591.7 Corporate Securities: Bonds and Notes 2,626.8 238.2 (27.2 ) 2,837.8 Redeemable Preferred Stocks 4.4 0.1 — 4.5 Collateralized Loan Obligations 75.1 0.4 (1.2 ) 74.3 Other Mortgage- and Asset-backed 3.8 1.5 — 5.3 Investments in Fixed Maturities $ 4,496.0 $ 381.5 $ (32.6 ) $ 4,844.9 The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2014 were: Amortized Cost Gross Unrealized Fair Value (Dollars in Millions) Gains Losses U.S. Government and Government Agencies and Authorities $ 315.2 $ 32.3 $ (2.0 ) $ 345.5 States and Political Subdivisions 1,352.5 126.4 (1.8 ) 1,477.1 Corporate Securities: Bonds and Notes 2,599.3 294.3 (15.1 ) 2,878.5 Redeemable Preferred Stocks 5.9 0.8 — 6.7 Collateralized Loan Obligations 64.9 0.3 (0.8 ) 64.4 Other Mortgage- and Asset-backed 3.9 1.5 — 5.4 Investments in Fixed Maturities $ 4,341.7 $ 455.6 $ (19.7 ) $ 4,777.6
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at September 30, 2015 were: Gross Unrealized (Dollars in Millions) Cost Gains Losses Fair Value Preferred Stocks: Finance, Insurance and Real Estate $ 80.8 $ 4.4 $ (0.9 ) $ 84.3 Other Industries 21.0 2.9 (0.5 ) 23.4 Common Stocks: Finance, Insurance and Real Estate 18.4 4.1 (0.8 ) 21.7 Other Industries 9.8 6.0 (0.5 ) 15.3 Other Equity Interests: Exchange Traded Funds 198.7 0.3 (12.0 ) 187.0 Limited Liability Companies and Limited Partnerships 181.1 25.9 (3.0 ) 204.0 Investments in Equity Securities $ 509.8 $ 43.6 $ (17.7 ) $ 535.7 Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2014 were: Gross Unrealized (Dollars in Millions) Cost Gains Losses Fair Value Preferred Stocks: Finance, Insurance and Real Estate $ 85.5 $ 5.2 $ (1.0 ) $ 89.7 Other Industries 16.3 3.5 — 19.8 Common Stocks: Manufacturing 43.4 14.9 (1.1 ) 57.2 Finance, Insurance and Real Estate 34.3 6.2 — 40.5 Other Industries 26.5 10.0 (0.4 ) 36.1 Other Equity Interests: Exchange Traded Funds 195.2 8.2 (0.7 ) 202.7 Limited Liability Companies and Limited Partnerships 160.3 27.7 (1.8 ) 186.2 Investments in Equity Securities $ 561.5 $ 75.7 $ (5.0 ) $ 632.2

Property and Casualty Insuran24

Property and Casualty Insurance Reserves (Tables)	9 Months Ended
	Sep. 30, 2015
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Liability for Unpaid Claims Adjustment Expense by Expense Type [Table Text Block]	Property and casualty insurance reserve activity for the nine months ended September 30, 2015 and 2014 was: Nine Months Ended (Dollars in Millions) Sep 30, Sep 30, Property and Casualty Insurance Reserves: Gross of Reinsurance at Beginning of Year $ 733.9 $ 843.5 Less Reinsurance Recoverables at Beginning of Year 54.9 63.4 Property and Casualty Insurance Reserves - Net of Reinsurance at Beginning of Year 679.0 780.1 Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification 125.4 — Incurred Losses and LAE Related to: Current Year: Continuing Operations 795.1 756.9 Prior Years: Continuing Operations (12.8 ) (44.7 ) Discontinued Operations (3.5 ) (0.2 ) Total Incurred Losses and LAE Related to Prior Years (16.3 ) (44.9 ) Total Incurred Losses and LAE 778.8 712.0 Paid Losses and LAE Related to: Current Year: Continuing Operations 483.9 460.3 Prior Years: Continuing Operations 295.4 302.6 Discontinued Operations 5.9 6.5 Total Paid Losses and LAE Related to Prior Years 301.3 309.1 Total Paid Losses and LAE 785.2 769.4 Property and Casualty Insurance Reserves - Net of Reinsurance and Indemnification at End of Period 798.0 722.7 Plus Reinsurance and Indemnification Recoverables at End of Period 54.9 58.2 Property and Casualty Insurance Reserves - Gross of Reinsurance at End of Period $ 852.9 $ 780.9

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	The amortized cost of debt outstanding at September 30, 2015 and December 31, 2014 was: (Dollars in Millions) Sep 30, Dec 31, Senior Notes: 6.00% Senior Notes due November 30, 2015 $ — $ 249.5 6.00% Senior Notes due May 15, 2017 358.9 358.5 4.35% Senior Notes due February 15, 2025 247.4 — 7.375% Subordinated Debentures due February 27, 2054 144.1 144.1 Total Debt Outstanding $ 750.4 $ 752.1
Schedule of Interest Expense [Table Text Block]	Interest Expense, including facility fees, accretion of discount and amortization of issuance costs, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Notes Payable under Revolving Credit Agreement $ 0.6 $ 0.6 $ 0.2 $ 0.2 Federal Home Loan Bank of Dallas — — — — Federal Home Loan Bank of Chicago — — — — Senior Notes Payable: 6.00% Senior Notes due November 30, 2015 3.7 11.6 — 3.9 6.00% Senior Notes due May 15, 2017 16.7 16.6 5.6 5.5 4.35% Senior Notes due February 15, 2025 6.7 — 2.8 — 7.375% Subordinated Debentures due February 27, 2054 8.3 6.6 2.8 2.8 Interest Expense before Capitalization of Interest 36.0 35.4 11.4 12.4 Capitalization of Interest (0.6 ) (0.8 ) (0.1 ) (0.3 ) Total Interest Expense $ 35.4 $ 34.6 $ 11.3 $ 12.1
Schedule of Interest Paid [Table Text Block]	Interest paid, including facility fees, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Notes Payable under Revolving Credit Agreement $ 1.3 $ 0.5 $ 0.2 $ 0.2 Federal Home Loan Bank of Dallas — — — — Federal Home Loan Bank of Chicago — — — — Senior Notes Payable: 6.00% Senior Notes due November 30, 2015 4.8 7.5 — — 6.00% Senior Notes due May 15, 2017 10.8 10.8 — — 4.35% Senior Notes due February 15, 2025 5.2 — 5.2 — 7.375% Subordinated Debentures due February 27, 2054 8.3 5.5 2.8 2.7 Total Interest Paid $ 30.4 $ 24.3 $ 8.2 $ 2.9

Long-term Equity-based Compen26

Long-term Equity-based Compensation Plans (Tables)	9 Months Ended
	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the nine months ended September 30, 2015 and 2014 were as follows: Nine Months Ended Sep 30, 2015 Sep 30, 2014 Range of Valuation Assumptions Expected Volatility 22.49 % - 41.65 % 25.76 % - 44.43 % Risk-free Interest Rate 1.08 - 1.68 1.07 - 2.14 Expected Dividend Yield 2.47 - 2.62 2.53 - 2.60 Weighted-Average Expected Life in Years Employee Grants 4 - 7 4 - 7 Director Grants 5.5 6
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	Tandem Award activity for the nine months ended September 30, 2015 is presented below. Shares Subject to Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Aggregate Intrinsic Value ($ in Millions) Outstanding at Beginning of the Year 2,265,711 $ 39.74 Granted 293,750 36.38 Exercised (360,875 ) 29.64 Forfeited or Expired (579,586 ) 46.46 Outstanding at September 30, 2015 1,619,000 $ 38.97 4.97 $ 1.6 Vested and Expected to Vest at September 30, 2015 1,587,940 $ 39.03 4.90 $ 1.6 Exercisable at September 30, 2015 1,263,185 $ 39.83 3.91 $ 1.5
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Information pertaining to Tandem Awards outstanding at September 30, 2015 is presented below. Outstanding Exercisable Range of Exercise Prices Per Share ($) Shares Subject to Tandem Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Shares Weighted- average Exercise Price Per Share ($) $ 15.01 - $ 20.00 4,000 $ 16.48 3.60 4,000 $ 16.48 20.01 - 25.00 17,500 23.27 4.30 17,500 23.27 25.01 - 30.00 146,750 29.18 6.00 146,750 29.18 30.01 - 35.00 192,375 33.23 7.37 146,373 33.15 35.01 - 40.00 780,375 36.68 6.76 470,562 36.93 40.01 - 45.00 — — — — — 45.01 - 50.00 478,000 48.80 0.82 478,000 48.80 15.01 - 50.00 1,619,000 38.97 4.97 1,263,185 39.83
Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan, Activity [Table Text Block]	Activity related to DSU awards for the nine months ended September 30, 2015 was as follows: Number of DSUs Weighted- Vested Balance at Beginning of the Year 8,000 $ 34.52 Granted and Vested 3,500 38.38 Reduction for Shares Issued on Conversion (4,500 ) 34.94 Forfeited — — Vested Balance at End of Period 7,000 36.17
Time Vested Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	Activity related to nonvested time-based restricted stock and nonvested time-based RSUs for the nine months ended September 30, 2015 was as follows: Time-based Restricted Stock Awards Time-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- Nonvested Balance at Beginning of the Year 53,095 $ 32.42 30,024 $ 36.60 Granted — — 67,375 36.65 Vested (18,733 ) 31.09 (16,701 ) 36.33 Forfeited (4,814 ) 29.39 (2,075 ) 36.16 Nonvested Balance at End of Period 29,548 33.76 78,623 36.71
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	Activity related to nonvested performance-based restricted stock and nonvested performance-based RSUs for the nine months ended September 30, 2015 was as follows: Performance-based Restricted Stock Awards Performance-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- Nonvested Balance at Beginning of the Year 110,625 $ 39.28 61,875 $ 40.50 Granted — — 68,825 43.05 Vested — — — — Forfeited (59,225 ) 36.81 (2,600 ) 41.68 Nonvested Balance at End of Period 51,400 42.12 128,100 41.85

Income from Continuing Operat27

Income from Continuing Operations Per Unrestricted Share (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	A reconciliation of the numerator and denominator used in the calculation of Basic Income from Continuing Operations Per Unrestricted Share and Diluted Income from Continuing Operations Per Unrestricted Share for the nine and three months ended September 30, 2015 and 2014 is as follows: Nine Months Ended Three Months Ended Sep 30, Sep 30, Sep 30, Sep 30, (Dollars in Millions) Income from Continuing Operations $ 78.9 $ 49.3 $ 38.0 $ 4.8 Less Income from Continuing Operations Attributed to Participating Awards 0.3 0.2 0.2 — Income from Continuing Operations Attributed to Unrestricted Shares 78.6 49.1 37.8 4.8 Dilutive Effect on Income of Equity-based Compensation Equivalent Shares — — — — Diluted Income from Continuing Operations Attributed to Unrestricted Shares $ 78.6 $ 49.1 $ 37.8 $ 4.8 (Number of Shares in Thousands) Weighted-average Unrestricted Shares Outstanding 51,737.6 54,245.7 51,611.8 52,605.3 Equity-based Compensation Equivalent Shares 78.2 110.5 60.2 94.6 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 51,815.8 54,356.2 51,672.0 52,699.9 (Per Unrestricted Share in Whole Dollars) Basic Income from Continuing Operations Per Unrestricted Share $ 1.52 $ 0.90 $ 0.73 $ 0.09 Diluted Income from Continuing Operations Per Unrestricted Share $ 1.52 $ 0.90 $ 0.73 $ 0.09
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	The number of shares of Kemper common stock that were excluded from the calculations of Equity-based Compensation Equivalent Shares and Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution for the nine and three months ended September 30, 2015 and 2014 because the exercise prices for the options exceeded the average market price is presented below. Nine Months Ended Three Months Ended (Number of Shares in Thousands) Sep 30, Sep 30, Sep 30, Sep 30, Equity-based Compensation Equivalent Shares 1,003.4 1,540.6 833.9 1,830.5 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 1,003.4 1,540.6 833.9 1,830.5

Other Comprehensive Income (L28

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Schedule of Comprehensive Income [Table Text Block]	The components of Other Comprehensive Income (Loss) Before Income Taxes for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Other Comprehensive Income (Loss) Before Income Taxes: Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment $ (100.1 ) $ 228.5 $ 2.3 $ 7.2 Reclassification Adjustment for Amounts Included in Net Income (30.6 ) (8.0 ) (2.3 ) (4.3 ) Unrealized Holding Gains (Losses) (130.7 ) 220.5 — 2.9 Foreign Currency Translation Adjustments (1.1 ) (0.7 ) (0.3 ) (0.5 ) Amortization of Net Unrecognized Postretirement Benefit Costs 17.3 5.9 5.8 2.0 Other Comprehensive Income (Loss) Before Income Taxes $ (114.5 ) $ 225.7 $ 5.5 $ 4.4 The components of Other Comprehensive Income Tax Benefit (Expense) for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Other Comprehensive Income Tax Benefit (Expense): Unrealized Holding Gains and Losses Arising During the Period Before Reclassification Adjustment $ 35.6 $ (80.6 ) $ (0.7 ) $ (2.6 ) Reclassification Adjustment for Amounts Included in Net Income 10.8 2.8 0.9 1.5 Unrealized Holding Gains and Losses 46.4 (77.8 ) 0.2 (1.1 ) Foreign Currency Translation Adjustments 0.4 0.3 0.1 0.2 Amortization of Net Unrecognized Postretirement Benefit Costs (6.0 ) (2.1 ) (2.1 ) (0.7 ) Other Comprehensive Income Tax Benefit (Expense) $ 40.8 $ (79.6 ) $ (1.8 ) $ (1.6 )
Schedule of Accumulated Other Comprehensive Income [Table Text Block]	The components of Accumulated Other Comprehensive Income (“AOCI”) at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Net Unrealized Gains on Investments, Net of Income Taxes: Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings $ 2.1 $ 2.8 Other Net Unrealized Gains on Investments 241.2 324.8 Foreign Currency Translation Adjustments, Net of Income Taxes (0.5 ) 0.2 Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes (93.8 ) (105.1 ) Accumulated Other Comprehensive Income $ 149.0 $ 222.7
Reclassification out of Accumulated Comprehensive Income [Table Text Block]	Components of AOCI were reclassified to the following lines of the Condensed Consolidated Statements of Income for the nine and three months ended September 30, 2015 and 2014 : Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Reclassification of AOCI from Net Unrealized Gains on Investments to: Net Realized Gains on Sales of Investments $ 43.1 $ 16.7 $ 5.6 $ 8.1 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Total Before Income Taxes 30.6 8.0 2.3 4.3 Income Tax Expense (10.8 ) (2.8 ) (0.9 ) (1.5 ) Reclassification from AOCI, Net of Income Taxes 19.8 5.2 1.4 2.8 Reclassification of AOCI from Amortization of Net Unrecognized Postretirement Benefit Costs to: Interest and Other Expenses (17.3 ) (5.9 ) (5.8 ) (2.0 ) Income Tax Benefit 6.0 2.1 2.1 0.7 Reclassification from AOCI, Net of Income Taxes (11.3 ) (3.8 ) (3.7 ) (1.3 ) Total Reclassification from AOCI to Net Income $ 8.5 $ 1.4 $ (2.3 ) $ 1.5

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Schedule of Current and Deferred Tax Assets Table [Table Text Block]	(Dollars in Millions) Sep 30, Dec 31, Current Income Tax Assets $ 12.8 $ — Deferred Income Tax Assets 9.5 — Current and Deferred Income Tax Assets $ 22.3 $ —
Schedule of Components of Income Tax Liabilities [Table Text Block]	The components of Liabilities for Income Taxes at September 30, 2015 and December 31, 2014 were: (Dollars in Millions) Sep 30, Dec 31, Current Income Tax Liabilities $ — $ 7.8 Deferred Income Tax Liabilities — 21.5 Unrecognized Tax Benefits 3.7 7.2 Liabilities for Income Taxes $ 3.7 $ 36.5

Pension Benefits and Postreti30

Pension Benefits and Postretirement Benefits Other Than Pensions (Tables)	9 Months Ended
	Sep. 30, 2015
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	The components of Pension Expense for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Service Cost Earned $ 7.9 $ 6.5 $ 2.7 $ 2.1 Interest Cost on Projected Benefit Obligation 19.3 18.6 6.5 6.2 Expected Return on Plan Assets (26.3 ) (26.2 ) (8.8 ) (8.7 ) Amortization of Accumulated Net Unrecognized Pension Costs 18.3 7.3 6.1 2.5 Total Pension Expense Recognized $ 19.2 $ 6.2 $ 6.5 $ 2.1
Postretirement Benefits Other than Pensions [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	The components of Postretirement Benefits Other than Pensions Expense (Benefit) for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Service Cost on Benefits Earned $ 0.1 $ 0.1 $ — $ — Interest Cost on Projected Benefit Obligation 0.8 0.9 0.3 0.3 Amortization of Accumulated Net Unrecognized Gain (1.1 ) (1.4 ) (0.4 ) (0.5 ) Total Postretirement Benefits Other than Pensions Expense (Benefit) $ (0.2 ) $ (0.4 ) $ (0.1 ) $ (0.2 )

Business Segments (Tables)

Business Segments (Tables)	9 Months Ended
	Sep. 30, 2015
Segment Reporting [Abstract]
Revenue from External Customers by Products and Services [Table Text Block]	Earned Premiums by product line for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Personal Automobile $ 730.9 $ 633.4 $ 288.5 $ 205.1 Homeowners 216.3 236.6 72.1 77.9 Other Personal Property and Casualty Insurance 92.0 96.2 30.7 31.8 Commercial Automobile 40.7 40.8 13.7 14.1 Life 279.5 291.6 95.5 96.8 Accident and Health 108.7 112.1 36.2 37.1 Total Earned Premiums $ 1,468.1 $ 1,410.7 $ 536.7 $ 462.8
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Segment Revenues, including a reconciliation to Total Revenues, for the nine and three months ended September 30, 2015 and 2014 were: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Revenues: Property & Casualty Insurance: Earned Premiums $ 1,023.1 $ 949.5 $ 386.1 $ 309.7 Net Investment Income 51.7 55.6 18.3 18.5 Other Income 0.5 0.4 0.1 0.1 Total Property & Casualty Insurance 1,075.3 1,005.5 404.5 328.3 Life & Health Insurance: Earned Premiums 445.0 461.2 150.6 153.1 Net Investment Income 159.0 147.4 55.1 49.2 Other Income 1.7 0.4 0.7 0.4 Total Life & Health Insurance 605.7 609.0 206.4 202.7 Total Segment Revenues 1,681.0 1,614.5 610.9 531.0 Net Realized Gains on Sales of Investments 42.7 18.1 5.3 8.0 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Other 12.6 13.0 2.5 4.6 Total Revenues $ 1,723.8 $ 1,636.9 $ 615.4 $ 539.8 Note 12 - Business Segments (continued)
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Segment Operating Profit, including a reconciliation to Income from Continuing Operations before Income Taxes, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Segment Operating Profit (Loss): Property & Casualty Insurance $ 34.6 $ (8.9 ) $ 25.0 $ (23.9 ) Life & Health Insurance 82.4 90.7 35.4 31.4 Total Segment Operating Profit 117.0 81.8 60.4 7.5 Corporate and Other Operating Loss (36.2 ) (24.1 ) (12.6 ) (7.7 ) Total Operating Profit (Loss) 80.8 57.7 47.8 (0.2 ) Net Realized Gains on Sales of Investments 42.7 18.1 5.3 8.0 Net Impairment Losses Recognized in Earnings (12.5 ) (8.7 ) (3.3 ) (3.8 ) Loss from Early Extinguishment of Debt (9.1 ) — — — Income from Continuing Operations before Income Taxes $ 101.9 $ 67.1 $ 49.8 $ 4.0
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]	Segment Net Operating Income, including a reconciliation to Income from Continuing Operations, for the nine and three months ended September 30, 2015 and 2014 was: Nine Months Ended Three Months Ended (Dollars in Millions) Sep 30, Sep 30, Sep 30, Sep 30, Segment Net Operating Income (Loss): Property & Casualty Insurance $ 31.8 $ (0.4 ) $ 21.0 $ (13.6 ) Life & Health Insurance 53.9 58.3 23.5 20.3 Total Segment Net Operating Income 85.7 57.9 44.5 6.7 Corporate and Other Net Operating Loss (20.6 ) (14.7 ) (7.9 ) (4.6 ) Consolidated Net Operating Income 65.1 43.2 36.6 2.1 Net Income (Loss) From: Net Realized Gains on Sales of Investments 27.8 11.8 3.5 5.2 Net Impairment Losses Recognized in Earnings (8.1 ) (5.7 ) (2.1 ) (2.5 ) Loss from Early Extinguishment of Debt (5.9 ) — — — Income from Continuing Operations $ 78.9 $ 49.3 $ 38.0 $ 4.8

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]	The valuation of assets measured at fair value in the Company’s Condensed Consolidated Balance Sheet at December 31, 2014 is summarized below. Fair Value Measurements (Dollars in Millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 129.2 $ 216.3 $ — $ 345.5 States and Political Subdivisions — 1,477.1 — 1,477.1 Corporate Securities: Bonds and Notes — 2,517.9 360.6 2,878.5 Redeemable Preferred Stocks — — 6.7 6.7 Collateralized Loan Obligations — — 64.4 64.4 Other Mortgage- and Asset-backed — 1.5 3.9 5.4 Total Investments in Fixed Maturities 129.2 4,212.8 435.6 4,777.6 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 84.7 5.0 89.7 Other Industries — 3.4 16.4 19.8 Common Stocks: Manufacturing 50.9 5.7 0.6 57.2 Finance, Insurance and Real Estate 34.8 0.1 5.6 40.5 Other Industries 24.2 0.7 11.2 36.1 Other Equity Interests: Exchange Traded Funds 202.7 — — 202.7 Limited Liability Companies and Limited Partnerships — — 186.2 186.2 Total Investments in Equity Securities 312.6 94.6 225.0 632.2 Fair Value Option Investments: Limited Liability Companies and Limited Partnership Hedge Funds — — 53.3 53.3 Other Investments: Trading Securities 4.9 — — 4.9 Total $ 446.7 $ 4,307.4 $ 713.9 $ 5,468.0 The valuation of assets measured at fair value in the Company’s Condensed Consolidated Balance Sheet at September 30, 2015 is summarized below. Fair Value Measurements (Dollars in Millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 128.0 $ 203.3 $ — $ 331.3 States and Political Subdivisions — 1,591.7 — 1,591.7 Corporate Securities: Bonds and Notes — 2,409.3 428.5 2,837.8 Redeemable Preferred Stocks — — 4.5 4.5 Collateralized Loan Obligations — — 74.3 74.3 Other Mortgage- and Asset-backed — 1.4 3.9 5.3 Total Investments in Fixed Maturities 128.0 4,205.7 511.2 4,844.9 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 79.3 5.0 84.3 Other Industries — 6.8 16.6 23.4 Common Stocks: Finance, Insurance and Real Estate 16.4 5.3 — 21.7 Other Industries 0.4 — 14.9 15.3 Other Equity Interests: Exchange Traded Funds 187.0 — — 187.0 Limited Liability Companies and Limited Partnerships — — 204.0 204.0 Total Investments in Equity Securities 203.8 91.4 240.5 535.7 Fair Value Option Investments: Limited Liability Companies and Limited Partnerships Hedge Funds — — 166.1 166.1 Other Investments: Trading Securities 4.6 — — 4.6 Total $ 336.4 $ 4,297.1 $ 917.8 $ 5,551.3
Fair Value Inputs, Assets, Quantitative Information [Table Text Block]	The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at September 30, 2015 . (Dollars in Millions) Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted-average Yield Investment-grade Market Yield $ 109.5 2.4 % - 6.9 % 4.2 % Non-investment-grade: Senior Debt Market Yield 107.3 5.8 - 14.6 9.9 Junior Debt Market Yield 202.3 8.0 - 25.2 13.5 Collateralized Loan Obligations Market Yield 74.3 3.0 - 9.0 5.4 Other Various 17.8 Total Fixed Maturity Investments in Corporate Securities $ 511.2 Note 13 - Fair Value Measurements (continued) The table below presents quantitative information about the significant unobservable inputs utilized by the Company in determining fair values for fixed maturity investments in corporate securities classified as Level 3 at December 31, 2014 . (Dollars in Millions) Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted-average Yield Investment-grade Market Yield $ 107.0 2.8 % - 6.9 % 3.9 % Non-investment-grade: Senior Debt Market Yield 92.7 3.8 - 14.5 10.6 Junior Debt Market Yield 149.9 8.2 - 21.0 13.4 Collateralized Loan Obligations Market Yield 64.4 2.7 - 8.1 5.2 Other Debt Various 21.6 Total Fixed Maturity Investments in Corporate Securities $ 435.6
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the nine months ended September 30, 2015 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (3.5 ) (1.3 ) 0.5 — (1.2 ) (0.5 ) 1.8 (4.2 ) Included in Other Comprehensive Income (3.4 ) (0.6 ) (0.3 ) — 1.6 (1.3 ) — (4.0 ) Purchases 184.7 — 24.7 1.3 7.2 48.4 111.0 377.3 Settlements (35.2 ) (0.3 ) (7.5 ) (0.1 ) (0.5 ) (32.9 ) — (76.5 ) Sales (62.4 ) — (7.5 ) (1.2 ) (1.8 ) — — (72.9 ) Transfers into Level 3 — — — — 0.8 4.1 — 4.9 Transfers out of Level 3 (12.3 ) — — — (8.4 ) — — (20.7 ) Balance at End of Period $ 428.5 $ 4.5 $ 74.3 $ 3.9 $ 36.5 $ 204.0 $ 166.1 $ 917.8 Note 13 - Fair Value Measurements (continued) Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the three months ended September 30, 2015 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 406.6 $ 5.4 $ 70.4 $ 4.0 $ 37.7 $ 199.9 $ 160.0 $ 884.0 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (0.4 ) (0.8 ) 0.1 — — 0.6 (0.9 ) (1.4 ) Included in Other Comprehensive Income (2.0 ) — (1.5 ) (0.1 ) (0.6 ) (1.0 ) — (5.2 ) Purchases 59.4 — 5.3 — 0.2 18.1 7.0 90.0 Settlements (28.3 ) (0.1 ) — — (0.2 ) (13.6 ) — (42.2 ) Sales (6.8 ) — — — (0.6 ) — — (7.4 ) Balance at End of Period $ 428.5 $ 4.5 $ 74.3 $ 3.9 $ 36.5 $ 204.0 $ 166.1 $ 917.8 Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the nine months ended September 30, 2014 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Value Option Total Balance at Beginning of Period $ 364.1 $ 7.4 $ 44.7 $ 4.5 $ 32.1 $ 173.9 $ — $ 626.7 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (4.1 ) — 0.1 0.1 3.1 — 0.6 (0.2 ) Included in Other Comprehensive Income 4.0 0.4 (0.4 ) 0.2 3.0 29.7 — 36.9 Purchases 117.6 — 18.1 — 2.8 38.6 50.0 227.1 Settlements (92.4 ) (0.4 ) — (0.8 ) (3.6 ) (21.8 ) — (119.0 ) Sales (47.6 ) — — — (2.2 ) (2.7 ) — (52.5 ) Transfers out of Level 3 (0.6 ) — — — — — — (0.6 ) Balance at End of Period $ 341.0 $ 7.4 $ 62.5 $ 4.0 $ 35.2 $ 217.7 $ 50.6 $ 718.4 Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the three months ended September 30, 2014 is presented below. Fixed Maturities Equity Securities (Dollars in Millions) Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred and Common Stocks Other Equity Interests Fair Total Balance at Beginning of Period $ 384.8 $ 7.1 $ 49.5 $ 3.9 $ 36.3 $ 194.4 $ 40.3 $ 716.3 Total Gains (Losses): Included in Condensed Consolidated Statement of Income (1.8 ) — — — 0.8 0.3 0.3 (0.4 ) Included in Other Comprehensive Income (1.4 ) 0.5 (0.3 ) 0.1 1.0 19.2 — 19.1 Purchases 31.7 — 13.3 — 0.1 12.3 10.0 67.4 Settlements (41.6 ) (0.2 ) — — (0.8 ) (8.2 ) — (50.8 ) Sales (30.7 ) — — — (2.2 ) (0.3 ) — (33.2 ) Balance at End of Period $ 341.0 $ 7.4 $ 62.5 $ 4.0 $ 35.2 $ 217.7 $ 50.6 $ 718.4

Acquisition of Business (Detail

Acquisition of Business (Details) - USD ($) $ in Millions	May. 07, 2015	Apr. 30, 2015	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2015
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		$ 71
Insurance Expenses, Impact of Purchase Accounting Adjustments [Line Items]				$ (2.9)	$ (2.9)
Tax Expense, Impact of Purchase Accounting Adjustments				$ 1	$ 1
Payments to Acquire Businesses, Gross		71
Business Combination, Cash Held in Escrow, Indemnification Obligation			$ 17.5
Capital Contribution to Subsidiary	$ 75
Goodwill, Purchase Accounting Adjustments			4.5
Business Combination, Indemnification Assets, Amount as of Acquisition Date		5.4
Business Combination, Indemnification Assets			15.9
Investments [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		187
Cash [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		13.4
Premiums Receivable [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		44.4
Receivables Other Than Premium Receivables [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		52.8
Intangible Assets Other Than Intangible Assets Arising from Insurance Contracts Acquired [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		32.6	$ 23.6
Goodwill [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		11.2
Current Income Tax Asset [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		1.4
Other Assets Acquired [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		5.9
Property and Casualty Insurance Reserves [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		(155.8)
Unearned Premiums [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		(85.6)
Current and Deferred Income Taxes [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		(1.5)
Other Liabilities [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		(34.8)
General Indemnification [Member]
Business Acquisition [Line Items]
Business Combination, Indemnification Assets, Range of Outcomes, Value, High		12.5
Employee Related Matters [Member]
Business Acquisition [Line Items]
Business Combination, Indemnification Assets, Range of Outcomes, Value, High		$ 5

Acquisition of Business Value o

Acquisition of Business Value of Intangible Assets Acquired (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Apr. 30, 2015
Broker Relationships [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	15 years
Minimum [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	2 years
Maximum [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	5 years
Intangible Assets Other Than Intangible Assets Arising from Insurance Contracts Acquired [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 23.6	$ 32.6
Other Intangible Assets [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	3.9	4.5
Broker Relationships [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	18.4	18.9
Intangible Assets Arising from Insurance Contracts Acquired in Business Combination [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 1.3	$ 9.2

Investments - Schedule of Inves

Investments - Schedule of Investments (Details) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	$ 4,496,000,000	$ 4,341,700,000
Available-for-sale Debt Securities, Fair Value	4,844,900,000	4,777,600,000
Available for sale Securities, Equity Securities, Cost	509,800,000	561,500,000
Available for sale Securities, Equity Securities, Fair Value	535,700,000	632,200,000
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Due in One Year or Less - Amortized Cost	58,900,000
Due in One Year or Less - Fair Value	59,800,000
Due after One Year to Five Years - Amortized Cost	793,800,000
Due after One Year to Five Years - Fair Value	837,600,000
Due after Five Years to Ten Years - Amortized Cost	1,414,000,000
Due after Five Years to Ten Years - Fair Value	1,459,400,000
Due after Ten Years - Amortized Cost	2,021,000,000
Due after Ten Years - Fair Value	2,270,800,000
Asset-backed Securities Not Due in a Single Maturity Date - Amortized Cost	208,300,000
Asset-backed Securities Not Due in a Single Maturity Date - Fair Value	217,300,000
Other Receivables	198,900,000	187,000,000
Other Liabilities	486,800,000	409,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1,138,700,000	423,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(38,300,000)	(9,700,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	211,500,000	580,700,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(12,000,000)	(15,000,000)
Total, Fair Value	1,350,200,000	1,004,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(50,300,000)	(24,700,000)
Available-for-sale-Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Securities that have had Recognized Credit Losses in Earnings, Aggregate Losses	0	0
Available For Sale Securities, Continuous Unrealized Loss Position, Credit Losses Recognized Related to Securites in An Unrealized Loss Position, In a Position of 12 Months or Longer	0	0
Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	4,496,000,000	4,341,700,000
Available-for-sale Debt Securities Gross Unrealized Gain	381,500,000	455,600,000
Available-for-sale Debt Securities, Gross Unrealized Loss	(32,600,000)	(19,700,000)
Available-for-sale Debt Securities, Fair Value	4,844,900,000	4,777,600,000
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Other Receivables	0	0
Other Liabilities	12,400,000	0
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	886,500,000	327,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(23,000,000)	(6,500,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	146,500,000	546,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(9,600,000)	(13,200,000)
Total, Fair Value	1,033,000,000	873,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(32,600,000)	(19,700,000)
Fixed Maturities [Member] | External Credit Rating, Investment Grade [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(20,400,000)	(14,100,000)
Fixed Maturities [Member] | External Credit Rating, Non Investment Grade [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	$ (12,200,000)	$ (5,600,000)
Percentage of Unrealized Loss Postion to Amortized Cost Basis of Available for Sale Security Average	6.00%	4.00%
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	$ 303,600,000	$ 315,200,000
Available-for-sale Debt Securities Gross Unrealized Gain	29,900,000	32,300,000
Available-for-sale Debt Securities, Gross Unrealized Loss	(2,200,000)	(2,000,000)
Available-for-sale Debt Securities, Fair Value	331,300,000	345,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	75,600,000	24,900,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(900,000)	(700,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	24,700,000	55,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,300,000)	(1,300,000)
Total, Fair Value	100,300,000	80,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(2,200,000)	(2,000,000)
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Asset-backed Securities Not Due in a Single Maturity Date - Fair Value	113,200,000
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Asset-backed Securities Not Due in a Single Maturity Date - Fair Value	18,200,000
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Asset-backed Securities Not Due in a Single Maturity Date - Fair Value	6,300,000
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	1,482,300,000	1,352,500,000
Available-for-sale Debt Securities Gross Unrealized Gain	111,400,000	126,400,000
Available-for-sale Debt Securities, Gross Unrealized Loss	(2,000,000)	(1,800,000)
Available-for-sale Debt Securities, Fair Value	1,591,700,000	1,477,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	160,700,000	1,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,900,000)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	900,000	126,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(100,000)	(1,800,000)
Total, Fair Value	161,600,000	127,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(2,000,000)	(1,800,000)
Bonds and Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	2,626,800,000	2,599,300,000
Available-for-sale Debt Securities Gross Unrealized Gain	238,200,000	294,300,000
Available-for-sale Debt Securities, Gross Unrealized Loss	(27,200,000)	(15,100,000)
Available-for-sale Debt Securities, Fair Value	2,837,800,000	2,878,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	605,900,000	250,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(19,100,000)	(5,100,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	119,800,000	360,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(8,100,000)	(10,000,000)
Total, Fair Value	725,700,000	610,900,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(27,200,000)	(15,100,000)
Redeemable Preferred Stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	4,400,000	5,900,000
Available-for-sale Debt Securities Gross Unrealized Gain	100,000	800,000
Available-for-sale Debt Securities, Gross Unrealized Loss	0	0
Available-for-sale Debt Securities, Fair Value	4,500,000	6,700,000
Collateralized Loan Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	75,100,000	64,900,000
Available-for-sale Debt Securities Gross Unrealized Gain	400,000	300,000
Available-for-sale Debt Securities, Gross Unrealized Loss	(1,200,000)	(800,000)
Available-for-sale Debt Securities, Fair Value	74,300,000	64,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	44,300,000	51,200,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,100,000)	(700,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	800,000	3,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(100,000)	(100,000)
Total, Fair Value	45,100,000	54,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(1,200,000)	(800,000)
Other Mortgage- and Asset-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	3,800,000	3,900,000
Available-for-sale Debt Securities Gross Unrealized Gain	1,500,000	1,500,000
Available-for-sale Debt Securities, Gross Unrealized Loss	0	0
Available-for-sale Debt Securities, Fair Value	5,300,000	5,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	300,000	400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Total, Fair Value	300,000	400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	0	0
Other Non-Governmental Issuers [Member]
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Asset-backed Securities Not Due in a Single Maturity Date - Fair Value	79,600,000
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	509,800,000	561,500,000
Available-for-sale Equity Securities, Gross Unrealized Gain	43,600,000	75,700,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(17,700,000)	(5,000,000)
Available for sale Securities, Equity Securities, Fair Value	535,700,000	632,200,000
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract]
Other Receivables	0	0
Other Liabilities	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	252,200,000	96,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(15,300,000)	(3,200,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	65,000,000	34,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,400,000)	(1,800,000)
Total, Fair Value	317,200,000	130,700,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(17,700,000)	(5,000,000)
Preferred Stock [Member] | Finance, Insurance and Real Estate [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	80,800,000	85,500,000
Available-for-sale Equity Securities, Gross Unrealized Gain	4,400,000	5,200,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(900,000)	(1,000,000)
Available for sale Securities, Equity Securities, Fair Value	84,300,000	89,700,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	2,700,000	7,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(100,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	17,200,000	12,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(900,000)	(900,000)
Total, Fair Value	19,900,000	19,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(900,000)	(1,000,000)
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	21,000,000	16,300,000
Available-for-sale Equity Securities, Gross Unrealized Gain	2,900,000	3,500,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(500,000)	0
Available for sale Securities, Equity Securities, Fair Value	23,400,000	19,800,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	7,500,000	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(500,000)	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	500,000	500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Total, Fair Value	8,000,000	500,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(500,000)	0
Common Stocks [Member] | Finance, Insurance and Real Estate [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	18,400,000	34,300,000
Available-for-sale Equity Securities, Gross Unrealized Gain	4,100,000	6,200,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(800,000)	0
Available for sale Securities, Equity Securities, Fair Value	21,700,000	40,500,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	9,900,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(800,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Total, Fair Value	9,900,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(800,000)
Common Stocks [Member] | All Industries Other than Finance, Insurance and Real Estate [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	9,800,000
Available-for-sale Equity Securities, Gross Unrealized Gain	6,000,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(500,000)
Available for sale Securities, Equity Securities, Fair Value	15,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	3,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(500,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Total, Fair Value	3,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(500,000)
Common Stocks [Member] | Manufacturing [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost		43,400,000
Available-for-sale Equity Securities, Gross Unrealized Gain		14,900,000
Available-for-sale Equity Securities, Gross Unrealized Loss		(1,100,000)
Available for sale Securities, Equity Securities, Fair Value		57,200,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		15,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(1,100,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Total, Fair Value		15,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments		(1,100,000)
Common Stocks [Member] | All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost		26,500,000
Available-for-sale Equity Securities, Gross Unrealized Gain		10,000,000
Available-for-sale Equity Securities, Gross Unrealized Loss		(400,000)
Available for sale Securities, Equity Securities, Fair Value		36,100,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		4,200,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(400,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		1,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Total, Fair Value		5,200,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments		(400,000)
Exchange Traded Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	198,700,000	195,200,000
Available-for-sale Equity Securities, Gross Unrealized Gain	300,000	8,200,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(12,000,000)	(700,000)
Available for sale Securities, Equity Securities, Fair Value	187,000,000	202,700,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	178,200,000	14,900,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(12,000,000)	(100,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	14,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(600,000)
Total, Fair Value	178,200,000	29,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	(12,000,000)	(700,000)
Limited Liability Companies and Limited Partnerships [Member]
Schedule of Available-for-sale Securities [Line Items]
Available for sale Securities, Equity Securities, Cost	181,100,000	160,300,000
Available-for-sale Equity Securities, Gross Unrealized Gain	25,900,000	27,700,000
Available-for-sale Equity Securities, Gross Unrealized Loss	(3,000,000)	(1,800,000)
Available for sale Securities, Equity Securities, Fair Value	204,000,000	186,200,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	50,900,000	54,400,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,500,000)	(1,500,000)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	47,300,000	6,600,000
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,500,000)	(300,000)
Total, Fair Value	98,200,000	61,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated in Investments	$ (3,000,000)	$ (1,800,000)

Investments - Schedule of Other

Investments - Schedule of Other Than Temporary Impairment (Details) - Fixed Maturities [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Period	$ 5.3	$ 12.9	$ 5.3	$ 9.9
Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period	0	0	0	2.4
Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Period	0	0	0	0.6
From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell	0	(2.4)	0	(2.4)
Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at End of Period	$ 5.3	$ 10.5	$ 5.3	$ 10.5

Investments Investments - Net R

Investments Investments - Net Realized Gains on Sales of Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gains on Sales	$ 3.6	$ 0.2	$ 9.5	$ 5
Losses on Sales	(0.1)	0	(0.7)	0
Equity Securities [Member]
Net Investment Income [Line Items]
Gains on Sales	2.8	7.9	35.7	11.7
Losses on Sales	$ (0.7)	$ 0	$ (1.4)	$ 0

Investments Investments - Equit

Investments Investments - Equity Method Limited Liability Investments (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Equity Method Limited Liability Investments, Maximum Exposure to Loss	$ 179.4	$ 184.8
Outstanding Commitments to Fund Equity Method Limited Liability Investments	$ 66.8

Investments Investments - Sched

Investments Investments - Schedule of Other Investments (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Loans to Policyholders at Unpaid Principal	$ 286.9	$ 283.4
Real Estate at Depreciated Cost	158.2	160.9
Trading Securities at Fair Value	4.6	4.9
Other	1.3	0.4
Total	$ 451	$ 449.6

Property and Casualty Insuran40

Property and Casualty Insurance Reserves (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Property and Casulty Insurance Reserve - Gross of Reinsurance at Beginning of Year	$ 733.9	$ 843.5
Less Reinsurance Recoverables at Beginning of Year	54.9	63.4
Property and Casualty Insurance Reserves - Net of Reinsurance at Beginning of Year	679	780.1
Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification				$ 125.4		$ 0
Incurred Losses and LAE Related to Prior Years	(16.3)	(44.9)
Total Incurred Losses and LAE	778.8	712
Paid Losses and LAE Related to Prior Years	301.3	309.1
Total Paid Losses and LAE	785.2	769.4
Property and Casualty Insurance Reserves - Net of Reinsurance at End of Period	679	780.1	$ 798	$ 679	$ 722.7	$ 780.1
Plus Reinsurance Recoverables at End of Period	54.9	58.2
Property and Casualty Insurance Reserves - Gross of Reinsurance at End of Period	852.9	780.9
Continuing Operations [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Current Year	795.1	756.9
Incurred Losses and LAE Related to Prior Years	(12.8)	(44.7)
Paid Losses and LAE Related to Current Year	483.9	460.3
Paid Losses and LAE Related to Prior Years	295.4	302.6
Discontinued Operations [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(3.5)	(0.2)
Paid Losses and LAE Related to Prior Years	5.9	6.5
Property and Casualty, Personal Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(13.5)	(44)
Property and Casualty, Commercial Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(2.8)	(0.9)
Property and Casualty, Commercial Insurance Product Line [Member] | Continuing Operations [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	0.7	(0.7)
Property and Casualty, Commercial Insurance Product Line [Member] | Discontinued Operations [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(3.5)	(0.2)
Personal Automobile [Member] | Property and Casualty, Personal Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(5.6)	(26.9)
Homeowners [Member] | Property and Casualty, Personal Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	(8.8)	(13.3)
Other Personal Lines [Member] | Property and Casualty, Personal Insurance Product Line [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Incurred Losses and LAE Related to Prior Years	$ 0.9	$ (3.8)

Debt (Details)

Debt (Details) - USD ($)	Feb. 24, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 02, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Notes Payable		$ 750,400,000		$ 750,400,000			$ 752,100,000
Loss on Early Redemption of Debt		0	$ 0	(9,100,000)	$ 0
Interest Expense before Capitalization of Interest		11,400,000	12,400,000	36,000,000	35,400,000
Capitalization of Interest		(100,000)	(300,000)	(600,000)	(800,000)
Interest Expense		11,300,000	12,100,000	35,400,000	34,600,000
Interest Paid		8,200,000	2,900,000	30,400,000	24,300,000
Senior Notes [Member] | Senior Notes, 6 Percent Due November 30, 2015 [Member]
Debt Instrument [Line Items]
Notes Payable		$ 0		$ 0			249,500,000
Debt Instrument, Face Amount	$ 250,000,000
Notes Payable, Interest Rate, Stated Percentage		6.00%		6.00%
Interest Expense before Capitalization of Interest		$ 0	3,900,000	$ 3,700,000	11,600,000
Interest Paid		0	0	4,800,000	7,500,000
Senior Notes [Member] | Senior Notes, 6 Percent Due May 15, 2017 [Member]
Debt Instrument [Line Items]
Notes Payable		$ 358,900,000		$ 358,900,000			358,500,000
Notes Payable, Interest Rate, Stated Percentage		6.00%		6.00%
Interest Expense before Capitalization of Interest		$ 5,600,000	5,500,000	$ 16,700,000	16,600,000
Interest Paid		0	0	10,800,000	10,800,000
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Debt Instrument [Line Items]
Notes Payable		$ 247,400,000		$ 247,400,000			0
Debt Instrument, Face Amount	$ 250,000,000
Notes Payable, Interest Rate, Stated Percentage	4.35%	4.35%		4.35%
Proceeds from Debt, Net of Issuance Costs	$ 247,300,000
Debt Instrument, Interest Rate, Effective Percentage	4.49%
Interest Expense before Capitalization of Interest		$ 2,800,000	0	$ 6,700,000	0
Interest Paid		5,200,000	0	5,200,000	0
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Debt Instrument [Line Items]
Notes Payable		$ 144,100,000		$ 144,100,000			144,100,000
Notes Payable, Interest Rate, Stated Percentage		7.375%		7.375%
Interest Expense before Capitalization of Interest		$ 2,800,000	2,800,000	$ 8,300,000	6,600,000
Interest Paid		2,800,000	2,700,000	8,300,000	5,500,000
Notes Payable under Revolving Credit Agreement [Member] | 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Amount Outstanding		0		0			0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest Expense before Capitalization of Interest		200,000	200,000	600,000	600,000
Interest Paid		200,000	200,000	1,300,000	500,000
Revolving Credit Facility [Member] | 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 225,000,000
Federal Home Loan Bank of Dallas [Member]
Debt Instrument [Line Items]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances		20,500,000		20,500,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties				20,500,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances		0		0			0
Interest Expense before Capitalization of Interest		0	0	0	0
Interest Paid		0	0	0	0
Federal Home Loan Bank of Chicago [Member]
Debt Instrument [Line Items]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances		21,000,000		21,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties				21,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances		0		0			$ 0
Interest Expense before Capitalization of Interest		0	0	0	0
Interest Paid		$ 0	$ 0	$ 0	$ 0

Long-term Equity-based Compen42

Long-term Equity-based Compensation Plans Omnibus Plan (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Available for Grant under Omnibus Plan	7,755,303
Equity-based Compensation Expense	$ 5.4	$ 5.8
Unamortized Compensation Expense Related to Nonvested Awards	$ 6
Unamortized Compensation Expense Related to Nonvested Awards, Period for Recognition	1 year 11 months 15 days
Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduction in Share Authorization if Maximum Performance Level is Met or Exceeded	538,500

Long-term Equity-based Compen43

Long-term Equity-based Compensation Plans Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - Stock Options [Member]	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Expected Volatility Rate, Minimum	22.49%	25.76%
Fair Value Assumptions, Expected Volatility Rate, Maximum	41.65%	44.43%
Fair Value Assumptions, Risk Free Interest Rate, Minimum	1.08%	1.07%
Fair Value Assumptions, Risk Free Interest Rate, Maximum	1.68%	2.14%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Expected Dividend Yield	2.47%	2.53%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Expected Dividend Yield	2.62%	2.60%
Employee [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Weighted-average Expected Life	4 years	4 years
Employee [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Weighted-average Expected Life	7 years	7 years
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair Value Assumptions, Weighted-average Expected Life	5 years 6 months	6 years

Long-term Equity-based Compen44

Long-term Equity-based Compensation Plans Disclosure of Share-based Compensation Arrangements by Share-based Payment Awards (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options and Stock Appreciation Rights, Outstanding at Beginning of the Year, Number	2,265,711
Options and Stock Appreciation Rights, Outstanding at Beginning of the Year, Weighted Average Exercise Price	$ 39.74
Options and Stock Appreciation Rights, Grants in Period, Gross	293,750
Options and Stock Appreciation Rights, Grants in Period, Weighted Average Exercise Price	$ 36.38
Options and Stock Appreciation Rights, Exercises in Period	(360,875)
Options and Stock Appreciation Rights, Exercises in Period, Weighted Average Exercise Price	$ 29.64
Options and Stock Appreciation Rights, Forfeitures and Expirations in Period	(579,586)
Options and Stock Appreciation Rights, Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 46.46
Options and Stock Appreciation Rights, Outstanding at End of the Year, Number	1,619,000
Options and Stock Appreciation Rights, Outstanding at End of the Year, Weighted Average Exercise Price	$ 38.97
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	4 years 11 months 19 days
Options and Stock Appreciation Rights, Outstanding at End of Period, Aggregate Intrinsic Value	$ 1.6
Options and Stock Appreciation Rights, Vested and Expected to Vest, Outstanding at End of Period, Number	1,587,940
Options and Stock Appreciation Rights, Vested and Expected to Vest, Outstanding at End of Period, Weighted Average Exercise Price	$ 39.03
Options and Stock Appreciation Rights, Vested and Expected to Vest, Outstanding at End of Period, Weighted Average Remaining Contractual Term	4 years 10 months 24 days
Options and Stock Appreciation Rights, Vested and Expected to Vest, Outstanding at End of Period, Aggregate Intrinsic Value	$ 1.6
Options and Stock Appreciation Rights, Vested and Expected to Vest, Exercisable at End of Period, Number	1,263,185
Options and Stock Appreciation Rights, Vested and Expected to Vest, Exercisable at End of Period, Weighted Average Exercise Price	$ 39.83
Options and Stock Appreciation Rights, Vested and Expected to Vest, Exercisable at End of Period, Weighted Average Remaining Contractual Term	3 years 10 months 28 days
Options and Stock Appreciation Rights, Vested and Expected to Vest, Exercisable at End of Period, Aggregate Intrinsic Value	$ 1.5
Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 7.97	$ 10.49
Options, Exercises in Period, Total Intrinsic Value	$ 2.9	$ 0.3
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options	1	0.1
Proceeds from Stock Options Exercised	$ 2.1	$ 0

Long-term Equity-based Compen45

Long-term Equity-based Compensation Plans Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Details) - $ / shares	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	1,619,000	2,265,711
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 38.97	$ 39.74
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	4 years 11 months 19 days
Range of Exercise Prices $15.01 - $20.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 15.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 20
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	4,000
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 16.48
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	3 years 7 months 6 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	4,000
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 16.48
Range of Exercise Prices $20.01 - $25.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	20.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 25
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	17,500
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 23.27
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	4 years 3 months 18 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	17,500
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 23.27
Range of Exercise Prices $25.01 - $30.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	25.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 30
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	146,750
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 29.18
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	6 years 1 day
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	146,750
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 29.18
Range of Exercise Prices $30.01 - $35.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	30.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 35
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	192,375
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 33.23
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	7 years 4 months 12 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	146,373
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 33.15
Range of Exercise Prices $35.01 - $40.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	35.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 40
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	780,375
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 36.68
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	6 years 9 months 3 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	470,562
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 36.93
Range of Exercise Prices $40.01 - $45.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	40.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 45
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	0
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 0
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	0 years
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	0
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 0
Range of Exercise Prices $45.01 - $50.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	45.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 50
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	478,000
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 48.80
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	9 months 24 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	478,000
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 48.80
Range of Exercise Prices $15.01 - $50.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	15.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 50
Options and Stock Appreciation Rights, Outstanding at End of Period, Number	1,619,000
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Exercise Price	$ 38.97
Options and Stock Appreciation Rights, Outstanding at End of Period, Weighted Average Remaining Contractual Term	4 years 11 months 21 days
Options and Stock Appreciation Rights, Exercisable at End of Period, Number	1,263,185
Options and Stock Appreciation Rights, Exercisable at End of Period, Weighted Average Exercise Price	$ 39.83

Long-term Equity-based Compen46

Long-term Equity-based Compensation Plans Schedule of Nonvested Restricted Stock Units Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2015	Sep. 30, 2015	Sep. 30, 2014
Time Vested Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Nonvested at Beginning of Year, Number	53,095	53,095
Restricted Stock, Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value	$ 32.42	$ 32.42
Restricted Stock, Grants in Period		0
Restricted Stock, Weighted Average Grant Date Fair Value		$ 0
Restricted Stock, Vested in Period		(18,733)
Restricted Stock, Vested in Period, Weighted Average Grant Date Fair Value		$ 31.09
Restricted Stock, Forfeited in Period		(4,814)
Restricted Stock, Forfeitures, Weighted Average Grant Date Fair Value		$ 29.39
Restricted Stock, Nonvested at End of Period, Number		29,548
Restricted Stock, Nonvested at End of Period, Weighted Average Grant Date Fair Value		$ 33.76
Time Vested Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Nonvested at Beginning of Year, Number	30,024	30,024
Restricted Stock, Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value	$ 36.60	$ 36.60
Restricted Stock, Grants in Period		67,375
Restricted Stock, Weighted Average Grant Date Fair Value		$ 36.65
Restricted Stock, Vested in Period		(16,701)
Restricted Stock, Vested in Period, Weighted Average Grant Date Fair Value		$ 36.33
Restricted Stock, Forfeited in Period		(2,075)
Restricted Stock, Forfeitures, Weighted Average Grant Date Fair Value		$ 36.16
Restricted Stock, Nonvested at End of Period, Number		78,623
Restricted Stock, Nonvested at End of Period, Weighted Average Grant Date Fair Value		$ 36.71
Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Nonvested at Beginning of Year, Number	110,625	110,625
Restricted Stock, Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value	$ 39.28	$ 39.28
Restricted Stock, Grants in Period		0
Restricted Stock, Weighted Average Grant Date Fair Value		$ 0
Restricted Stock, Vested in Period		0
Restricted Stock, Vested in Period, Weighted Average Grant Date Fair Value		$ 0
Restricted Stock, Forfeited in Period		(59,225)
Restricted Stock, Forfeitures, Weighted Average Grant Date Fair Value		$ 36.81
Restricted Stock, Nonvested at End of Period, Number		51,400
Restricted Stock, Nonvested at End of Period, Weighted Average Grant Date Fair Value		$ 42.12
Performance Period		3 years
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Nonvested at Beginning of Year, Number	61,875	61,875
Restricted Stock, Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value	$ 40.50	$ 40.50
Restricted Stock, Grants in Period		68,825
Restricted Stock, Weighted Average Grant Date Fair Value		$ 43.05
Restricted Stock, Vested in Period		0
Restricted Stock, Vested in Period, Weighted Average Grant Date Fair Value		$ 0
Restricted Stock, Forfeited in Period		(2,600)
Restricted Stock, Forfeitures, Weighted Average Grant Date Fair Value		$ 41.68
Restricted Stock, Nonvested at End of Period, Number		128,100
Restricted Stock, Nonvested at End of Period, Weighted Average Grant Date Fair Value		$ 41.85
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Vested in Period, Total Fair Value	$ 1.4		$ 3.6
Restricted Stock, Vested in Period, Tax Benefits	$ 0.5		$ 1.2
Performance Period, 2015 to 2017 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Additional Shares To Be Granted If Maximum Perfornance Level Is Met or Exceeded		67,625
Performance Period, 2014 to 2016 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Additional Shares To Be Granted If Maximum Perfornance Level Is Met or Exceeded		60,475
Performance Period, 2013 to 2015 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Additional Shares To Be Granted If Maximum Perfornance Level Is Met or Exceeded		51,400
Performance Period, 2012 to 2014 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Share-based Compensation, Forfeited		57,775

Long-term Equity-based Compen47

Long-term Equity-based Compensation Plans Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan, Activity (Details)	9 Months Ended
	Sep. 30, 2015USD ($)$ / sharesshares
Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Deferred Stock Units, Outstanding, Number, Beginning of Year | shares	8,000
Share-based Compensation Arrangement by Share-based Payment Award, Deferred Stock Units, Outstanding, Weighted Average Exercise Price, Beginning of Year	$ 34.52
Share-based Compensation Arrangement by Share-based Payment Award, Deferred Stock Units, Granted and Vested in Period | shares	3,500
Share-based Compensation Arrangements by Share-based Payment Award, Deferred Stock Units, Granted and Vested in Period, Weighted Average Exercise Price	$ 38.38
Share-based Compensation Arrangements by Share-based Payment Award, Deferred Stock Units, Reduction for Shares Issued on Conversion | $	$ (4,500)
Share-based Compensation Arrangements by Share-based Payment Award, Deferred Stock Units, Reduction for Shares Issued on Conversion, Weighted Average Exercise Price	$ 34.94
Share-based Compensation Arrangements by Share-based Payment Award, Deferred Stock Units, Forfeited | $	$ 0
Share-based Compensation Arrangements by Share-based Payment Award, Deferred Stock Units, Forfeited, Weighted Average Exercise Price | $	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Deferred Stock Units, Outstanding, Number, End of Period | shares	7,000
Share-based Compensation Arrangement by Share-based Payment Award, Deferred Stock Units, Outstanding, Weighted Average Exercise Price, End of Period	$ 36.17

Income from Continuing Operat48

Income from Continuing Operations Per Unrestricted Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations	$ 38	$ 4.8	$ 78.9	$ 49.3
Dilutive Effect on Income of Equity-based Compensation Equivalent Shares	0	0	0	0
Diluted Income from Continuning Operations Attributed to Unrestricted Shares	$ 37.8	$ 4.8	$ 78.6	$ 49.1
Weighted-Average Unrestricted Shares Outstanding	51,611,800	52,605,300	51,737,600	54,245,700
Equity-based Compensation Equivalent Shares	60,200	94,600	78,200	110,500
Weighted-Average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution	51,672,000	52,699,900	51,815,800	54,356,200
Basic Income from Continuing Operations Per Unrestricted Share (in dollars per share)	$ 0.73	$ 0.09	$ 1.52	$ 0.90
Diluted Income from Continuing Operations Per Untrestriced Share (in dollars per share)	$ 0.73	$ 0.09	$ 1.52	$ 0.90
Unrestricted Shares [Member]
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations	$ 37.8	$ 4.8	$ 78.6	$ 49.1
Participating Awards [Member]
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations	$ 0.2	$ 0	$ 0.3	$ 0.2

Income from Continuing Operat49

Income from Continuing Operations Per Unrestricted Share - Antidilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	833,900	1,830,500	1,003,400	1,540,600
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	833,900	1,830,500	1,003,400	1,540,600

Other Comprehensive Income (L50

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income - Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment	$ 2.3	$ 7.2	$ (100.1)	$ 228.5
Reclassification Adjustment for Amounts Included in Net Income	(2.3)	(4.3)	(30.6)	(8)
Unrealized Holding Gains (Losses)	0	2.9	(130.7)	220.5
Foreign Currency Translation Adjustments	(0.3)	(0.5)	(1.1)	(0.7)
Amortization of Net Unrecognized Postretirement Benefit Costs	(5.8)	(2)	(17.3)	(5.9)
Other Comprehensive Income (Loss) Before Income Taxes	5.5	4.4	(114.5)	225.7
Other Comprehensive Income Tax Benefit (Expense):
Unrealized Holding Gains and Losses Arising During the Period Before Reclassification Adjustment	(0.7)	(2.6)	35.6	(80.6)
Reclassification Adjustment for Amounts Included in Net Income	0.9	1.5	10.8	2.8
Unrealized Holding Gains and Losses	0.2	(1.1)	46.4	(77.8)
Foreign Currency Translation Adjustments	0.1	0.2	0.4	0.3
Amortization of Net Unrecognized Postretirement Benefit Costs	(2.1)	(0.7)	(6)	(2.1)
Other Comprehensive Income Tax Benefit (Expense)	$ 1.8	$ 1.6	$ (40.8)	$ 79.6

Other Comprehensive Income (L51

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings	$ 2.1	$ 2.8
Other Net Unrealized Gains on Investments	241.2	324.8
Foreign Currency Translation Adjustments, Net of Income Taxes	(0.5)	0.2
Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes	(93.8)	(105.1)
Accumulated Other Comprehensive Income	$ 149	$ 222.7

Other Comprehensive Income (L52

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net Realized Gains on Sales of Investments	$ 5.3	$ 8	$ 42.7	$ 18.1
Net Impairment Losses Recognized in Earnings	(3.3)	(3.8)	(12.5)	(8.7)
Total Before Income Taxes	49.8	4	101.9	67.1
Income Tax Expense	(11.8)	0.8	(23)	(17.8)
Interest and Other Expenses	(25.7)	(22.1)	(82)	(67.3)
Total Reclassification from AOCI to Net Income	37.9	4.7	81.1	49.1
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Total Reclassification from AOCI to Net Income	(2.3)	1.5	8.5	1.4
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net Realized Gains on Sales of Investments	5.6	8.1	43.1	16.7
Net Impairment Losses Recognized in Earnings	(3.3)	(3.8)	(12.5)	(8.7)
Total Before Income Taxes	2.3	4.3	30.6	8
Income Tax Expense	(0.9)	(1.5)	(10.8)	(2.8)
Total Reclassification from AOCI to Net Income	1.4	2.8	19.8	5.2
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Expense	2.1	0.7	6	2.1
Interest and Other Expenses	(5.8)	(2)	(17.3)	(5.9)
Total Reclassification from AOCI to Net Income	$ (3.7)	$ (1.3)	$ (11.3)	$ (3.8)

Changes in Shareholders' Equi53

Changes in Shareholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Shareholders' Equity [Abstract]
Shareholders’ Equity at Beginning of Year			$ 2,090.7
Net Income	$ 37.9	$ 4.7	81.1	$ 49.1
Other Comprehensive Loss	3.7	$ 2.8	(73.7)	$ 146.1
Cash Dividends and Dividend Equivalents to Shareholders ($0.72 per share)			(37.3)
Repurchases of Common Stock			(41.3)
Equity-based Compensation Cost			5.4
Equity-based Awards, Net of Shares Exchanged			(0.3)
Shareholders’ Equity at End of Period	$ 2,024.6		$ 2,024.6

Income Taxes Income Taxes - Sch

Income Taxes Income Taxes - Schedule of Current and Deferred Tax Assets (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current Income Tax Assets	$ 12.8	$ 0
Deferred Income Tax Assets	9.5	0
Current and Deferred Income Tax Assets	$ 22.3	$ 0

Income Taxes - Schedule of Curr

Income Taxes - Schedule of Current and Deferred Income Tax Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current Income Tax Liabilities	$ 0	$ 7.8
Deferred Income Tax Liabilities	0	21.5
Unrecognized Tax Benefits	3.7	7.2
Liabilities for Income Taxes	$ 3.7	$ 36.5

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefit that Would Not Impact Effective Tax Rate, Tax Position with Uncertain Timing of Deductibility		$ 3.3		$ 3.4
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		0.4		$ 3.8
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	$ 3.6
Income Tax Benefit Recognized from a Reduction in Liability for Unrecognized Tax Benefits	$ 2.3
Income Taxes Paid		$ 40.1	$ 30.1

Pension Benefits and Postreti57

Pension Benefits and Postretirement Benefits Other Than Pensions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	$ 2.7	$ 2.1	$ 7.9	$ 6.5
Interest Cost on Projected Benefit Obligation	6.5	6.2	19.3	18.6
Expected Return on Plan Assets	(8.8)	(8.7)	(26.3)	(26.2)
Amortization of Accumulated Net Unrecognized Pension Costs	6.1	2.5	18.3	7.3
Total Expense (Benefit) Recognized	6.5	2.1	19.2	6.2
Postretirement Benefits Other than Pensions [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	0	0	0.1	0.1
Interest Cost on Projected Benefit Obligation	0.3	0.3	0.8	0.9
Amortization of Accumulated Net Unrecognized Pension Costs	(0.4)	(0.5)	(1.1)	(1.4)
Total Expense (Benefit) Recognized	$ (0.1)	$ (0.2)	$ (0.2)	$ (0.4)

Business Segments - Earned Prem

Business Segments - Earned Premiums by Product Line (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Entity-Wide Information, Revenue from External Customer [Line Items]
Earned Premiums, Life	$ 95.5	$ 96.8	$ 279.5	$ 291.6
Earned Premiums, Accident and Health	36.2	37.1	108.7	112.1
Earned Premiums, Total	536.7	462.8	1,468.1	1,410.7
Personal Automobile [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Earned Premiums, Property and Casualty	288.5	205.1	730.9	633.4
Homeowners [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Earned Premiums, Property and Casualty	72.1	77.9	216.3	236.6
Other Personal Property and Casualty Insurance [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Earned Premiums, Property and Casualty	30.7	31.8	92	96.2
Commercial Automobile [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Earned Premiums, Property and Casualty	$ 13.7	$ 14.1	$ 40.7	$ 40.8

Business Segments - Segment Inf

Business Segments - Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)segments	Sep. 30, 2014USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | segments			2
Earned Premiums	$ 536.7	$ 462.8	$ 1,468.1	$ 1,410.7
Net Investment Income	75.9	72.3	223.2	216
Other Income	0.8	0.5	2.3	0.8
Total Revenues	615.4	539.8	1,723.8	1,636.9
Net Realized Gains on Sales of Investments	5.3	8	42.7	18.1
Segment Operating Profit (Loss)	47.8	(0.2)	80.8	57.7
Net Impairment Losses Recognized in Earnings	(3.3)	(3.8)	(12.5)	(8.7)
Loss from Early Extinguishment of Debt	0	0	9.1	0
Income from Continuing Operations before Income Taxes	49.8	4	101.9	67.1
Segment Net Operating Income (Loss)	36.6	2.1	65.1	43.2
Income from Continuing Operations	38	4.8	78.9	49.3
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Segment Operating Profit (Loss)	(12.6)	(7.7)	(36.2)	(24.1)
Segment Net Operating Income (Loss)	(7.9)	(4.6)	(20.6)	(14.7)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Other Income	2.5	4.6	12.6	13
Net Realized Gains on Sales of Investments	5.3	8	42.7	18.1
Net Impairment Losses Recognized in Earnings	(3.3)	(3.8)	(12.5)	(8.7)
Loss from Early Extinguishment of Debt	0	0	(9.1)	0
Net Realized Gains (Losses) on Sales of Investments, Net of Tax	3.5	5.2	27.8	11.8
Net Impairment Losses Recognized in Earnings, Net of Tax	(2.1)	(2.5)	(8.1)	(5.7)
Loss from Early Extinguishment of Debt, Net of Tax	0	0	(5.9)	0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenues	610.9	531	1,681	1,614.5
Segment Operating Profit (Loss)	60.4	7.5	117	81.8
Segment Net Operating Income (Loss)	44.5	6.7	85.7	57.9
Operating Segments [Member] | Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Earned Premiums	386.1	309.7	1,023.1	949.5
Net Investment Income	18.3	18.5	51.7	55.6
Other Income	0.1	0.1	0.5	0.4
Total Revenues	404.5	328.3	1,075.3	1,005.5
Segment Operating Profit (Loss)	25	(23.9)	34.6	(8.9)
Segment Net Operating Income (Loss)	21	(13.6)	31.8	(0.4)
Operating Segments [Member] | Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Earned Premiums	150.6	153.1	445	461.2
Net Investment Income	55.1	49.2	159	147.4
Other Income	0.7	0.4	1.7	0.4
Total Revenues	206.4	202.7	605.7	609
Segment Operating Profit (Loss)	35.4	31.4	82.4	90.7
Segment Net Operating Income (Loss)	$ 23.5	$ 20.3	$ 53.9	$ 58.3

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value Inputs (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments, Fair Value Disclosure	$ 166.1	$ 53.3
Trading Securities, Fair Value Disclosure	4.6	4.9
Fair Value, Inputs, Level 3 [Member] | Partnership Interest [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments	119.3
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities, Fair Value Disclosure	4.6	4.9
Investments, Fair Value Disclosure	5,551.3	5,468
Fair Value, Measurements, Recurring [Member] | Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	4,844.9	4,777.6
Fair Value, Measurements, Recurring [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	331.3	345.5
Fair Value, Measurements, Recurring [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	1,591.7	1,477.1
Fair Value, Measurements, Recurring [Member] | Bonds and Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	2,837.8	2,878.5
Fair Value, Measurements, Recurring [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	4.5	6.7
Fair Value, Measurements, Recurring [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	74.3	64.4
Fair Value, Measurements, Recurring [Member] | Other Mortgage- and Asset-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	5.3	5.4
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	535.7	632.2
Fair Value, Measurements, Recurring [Member] | Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	187	202.7
Fair Value, Measurements, Recurring [Member] | Partnership Interest [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	204	186.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities, Fair Value Disclosure	4.6	4.9
Investments, Fair Value Disclosure	336.4	446.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	128	129.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	128	129.2
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Bonds and Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Other Mortgage- and Asset-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	203.8	312.6
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	187	202.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Partnership Interest [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	4,297.1	4,307.4
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	4,205.7	4,212.8
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	203.3	216.3
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	1,591.7	1,477.1
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Bonds and Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	2,409.3	2,517.9
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Other Mortgage- and Asset-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	1.4	1.5
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	91.4	94.6
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Partnership Interest [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities, Fair Value Disclosure	0	0
Investments, Fair Value Disclosure	917.8	713.9
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	511.2	435.6
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government and Government Agencies and Authorities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Bonds and Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	428.5	360.6
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	4.5	6.7
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	74.3	64.4
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Mortgage- and Asset-backed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	3.9	3.9
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	240.5	225
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Exchange Traded Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Partnership Interest [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	204	186.2
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	84.3	89.7
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	21.7	40.5
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	16.4	34.8
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	79.3	84.7
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	5.3	0.1
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	5	5
Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	5.6
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	23.4	19.8
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	15.3
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0	0
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0.4
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	6.8	3.4
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	16.6	16.4
All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	14.9
Manufacturing [Member] | Fair Value, Measurements, Recurring [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		57.2
Manufacturing [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		50.9
Manufacturing [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		5.7
Manufacturing [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		0.6
All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		36.1
All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		24.2
All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		0.7
All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Common Stocks [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure		11.2
Limited Liability Companies and Limited Partnership Hedge Funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments, Fair Value Disclosure	166.1	53.3
Limited Liability Companies and Limited Partnership Hedge Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments, Fair Value Disclosure	0	0
Limited Liability Companies and Limited Partnership Hedge Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments, Fair Value Disclosure	0	0
Limited Liability Companies and Limited Partnership Hedge Funds [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments, Fair Value Disclosure	$ 166.1	$ 53.3

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative Information for Level Three Inputs (Details) - Market Yield [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Collateralized Loan Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 74.3	$ 64.4
Collateralized Loan Obligations [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	3.00%	2.70%
Collateralized Loan Obligations [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	9.00%	8.10%
Collateralized Loan Obligations [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	5.40%	5.20%
Other Debt Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 17.8	$ 21.6
Debt Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	511.2	435.6
External Credit Rating, Investment Grade [Member] | Private Placement [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 109.5	$ 107
External Credit Rating, Investment Grade [Member] | Private Placement [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	2.40%	2.80%
External Credit Rating, Investment Grade [Member] | Private Placement [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	6.90%	6.90%
External Credit Rating, Investment Grade [Member] | Private Placement [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	4.20%	3.90%
External Credit Rating, Non Investment Grade [Member] | Senior Debt [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 107.3	$ 92.7
External Credit Rating, Non Investment Grade [Member] | Senior Debt [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	5.80%	3.80%
External Credit Rating, Non Investment Grade [Member] | Senior Debt [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	14.60%	14.50%
External Credit Rating, Non Investment Grade [Member] | Senior Debt [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	9.90%	10.60%
External Credit Rating, Non Investment Grade [Member] | Junior Debt [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 202.3	$ 149.9
External Credit Rating, Non Investment Grade [Member] | Junior Debt [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	8.00%	8.20%
External Credit Rating, Non Investment Grade [Member] | Junior Debt [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	25.20%	21.00%
External Credit Rating, Non Investment Grade [Member] | Junior Debt [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	13.50%	13.40%

Fair Value Measurements - Level

Fair Value Measurements - Level 3 Inputs Reconciliation (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	$ 884,000,000	$ 716,300,000	$ 713,900,000	$ 626,700,000
Included in Condensed Consolidated Statements of Operations	(1,400,000)	(400,000)	(4,200,000)	(200,000)
Included in Other Comprehensive Income	(5,200,000)	19,100,000	(4,000,000)	36,900,000
Purchases	90,000,000	67,400,000	377,300,000	227,100,000
Settlements	(42,200,000)	(50,800,000)	(76,500,000)	(119,000,000)
Sales	(7,400,000)	(33,200,000)	(72,900,000)	(52,500,000)
Transfers into Level 3	0	0	4,900,000	0
Transfers out of Level 3	0	0	(20,700,000)	(600,000)
Balance at End of Period	917,800,000	718,400,000	917,800,000	718,400,000
Fair Value, Level 1 to level 2 Transfers, Amount	0	0	0	0
Fair Value, Level 2 to Level 1 Transfers, Amount	0	0	0	0
Fair Value, Level 1 to level 3 Transfers, Amount	0	0	0	0
Fair Value, Level 3 to level 1 Transfers, Amount	0	0	0	0
Corporate Bonds and Notes [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	406,600,000	384,800,000	360,600,000	364,100,000
Included in Condensed Consolidated Statements of Operations	(400,000)	(1,800,000)	(3,500,000)	(4,100,000)
Included in Other Comprehensive Income	(2,000,000)	(1,400,000)	(3,400,000)	4,000,000
Purchases	59,400,000	31,700,000	184,700,000	117,600,000
Settlements	(28,300,000)	(41,600,000)	(35,200,000)	(92,400,000)
Sales	(6,800,000)	(30,700,000)	(62,400,000)	(47,600,000)
Transfers into Level 3			0
Transfers out of Level 3			(12,300,000)	(600,000)
Balance at End of Period	428,500,000	341,000,000	428,500,000	341,000,000
Redeemable Preferred Stocks [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	5,400,000	7,100,000	6,700,000	7,400,000
Included in Condensed Consolidated Statements of Operations	(800,000)	0	(1,300,000)	0
Included in Other Comprehensive Income	0	500,000	(600,000)	400,000
Purchases	0	0	0	0
Settlements	(100,000)	(200,000)	(300,000)	(400,000)
Sales	0	0	0	0
Transfers into Level 3			0
Transfers out of Level 3			0	0
Balance at End of Period	4,500,000	7,400,000	4,500,000	7,400,000
Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	70,400,000	49,500,000	64,400,000	44,700,000
Included in Condensed Consolidated Statements of Operations	100,000	0	500,000	100,000
Included in Other Comprehensive Income	(1,500,000)	(300,000)	(300,000)	(400,000)
Purchases	5,300,000	13,300,000	24,700,000	18,100,000
Settlements	0	0	(7,500,000)	0
Sales	0	0	(7,500,000)	0
Transfers into Level 3			0
Transfers out of Level 3			0	0
Balance at End of Period	74,300,000	62,500,000	74,300,000	62,500,000
Other Mortgage- and Asset-backed [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	4,000,000	3,900,000	3,900,000	4,500,000
Included in Condensed Consolidated Statements of Operations	0	0	0	100,000
Included in Other Comprehensive Income	(100,000)	100,000	0	200,000
Purchases	0	0	1,300,000	0
Settlements	0	0	(100,000)	(800,000)
Sales	0	0	(1,200,000)	0
Transfers into Level 3			0
Transfers out of Level 3			0	0
Balance at End of Period	3,900,000	4,000,000	3,900,000	4,000,000
Preferred and Common Stocks [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	37,700,000	36,300,000	38,800,000	32,100,000
Included in Condensed Consolidated Statements of Operations	0	800,000	(1,200,000)	3,100,000
Included in Other Comprehensive Income	(600,000)	1,000,000	1,600,000	3,000,000
Purchases	200,000	100,000	7,200,000	2,800,000
Settlements	(200,000)	(800,000)	(500,000)	(3,600,000)
Sales	(600,000)	(2,200,000)	(1,800,000)	(2,200,000)
Transfers into Level 3			800,000
Transfers out of Level 3			(8,400,000)	0
Balance at End of Period	36,500,000	35,200,000	36,500,000	35,200,000
Other Equity Interests [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	199,900,000	194,400,000	186,200,000	173,900,000
Included in Condensed Consolidated Statements of Operations	600,000	300,000	(500,000)	0
Included in Other Comprehensive Income	(1,000,000)	19,200,000	(1,300,000)	29,700,000
Purchases	18,100,000	12,300,000	48,400,000	38,600,000
Settlements	(13,600,000)	(8,200,000)	(32,900,000)	(21,800,000)
Sales	0	(300,000)	0	(2,700,000)
Transfers into Level 3			4,100,000
Transfers out of Level 3			0	0
Balance at End of Period	204,000,000	217,700,000	204,000,000	217,700,000
Fair Value Option Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Period	160,000,000	40,300,000	53,300,000	0
Included in Condensed Consolidated Statements of Operations	(900,000)	300,000	1,800,000	600,000
Included in Other Comprehensive Income	0	0	0	0
Purchases	7,000,000	10,000,000	111,000,000	50,000,000
Settlements	0	0	0	0
Sales	0	0	0	0
Transfers into Level 3			0
Transfers out of Level 3			0	0
Balance at End of Period	$ 166,100,000	$ 50,600,000	$ 166,100,000	$ 50,600,000

Related Parties (Details)

Related Parties (Details) - FS&C [Member] - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Trinity [Member]
Related Party Transaction [Line Items]
Investment expenses	$ 0.1	$ 0.3
Pension Plans [Member] | Investment Management Services for Defined Benefit Plan [Member]
Related Party Transaction [Line Items]
Investment expenses	0.3	$ 0.3
Assets under Management, Carrying Amount	$ 149.5