Kemper (KMPR) 10-K 12 Feb 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Jan. 31, 2016	Jun. 30, 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-K
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		51,325,205
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 2,000

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Assets:
Fixed Maturities at Fair Value (Amortized Cost: 2015 - $4,560.7; 2014 - $4,341.7)	$ 4,852.3	$ 4,777.6
Equity Securities at Fair Value (Cost: 2015 - $486.9; 2014 - $561.5)	523.2	632.2
Equity Method Limited Liability Investments at Cost Plus Cumulative Undistributed Earnings	190.6	184.8
Fair Value Option Investments	164.5	53.3
Short-term Investments at Cost which Approximates Fair Value	255.7	342.2
Other Investments	443.2	449.6
Total Investments	6,429.5	6,439.7
Cash	161.7	76.1
Receivables from Policyholders	332.4	295.3
Other Receivables	193.2	187
Deferred Policy Acquisition Costs	316.4	303.3
Goodwill	323	311.8
Current and Deferred Income Tax Assets	41.4	0
Other Assets	238.5	220.2
Total Assets	8,036.1	7,833.4
Liabilities and Shareholders’ Equity:
Life and Health	3,341	3,273.7
Property and Casualty	862.8	733.9
Total Insurance Reserves	4,203.8	4,007.6
Unearned Premiums	613.1	536.9
Liabilities for Income Taxes	3.8	36.5
Debt at Amortized Cost (Fair Value: 2015 - $781.3; 2014 - $804.4)	750.6	752.1
Accrued Expenses and Other Liabilities	472.4	409.6
Total Liabilities	6,043.7	5,742.7
Shareholders’ Equity:
Common Stock, $0.10 Par Value Per Share, 100 Million Shares Authorized; 51,326,751 Shares Issued and Outstanding at December 31, 2015 and 52,418,246 Shares Issued and Outstanding at December 31, 2014	5.1	5.2
Paid-in Capital	654	660.1
Retained Earnings	1,209	1,202.7
Accumulated Other Comprehensive Income	124.3	222.7
Total Shareholders’ Equity	1,992.4	2,090.7
Total Liabilities and Shareholders’ Equity	$ 8,036.1	$ 7,833.4

Consolidated Balance Sheets Con

Consolidated Balance Sheets Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Amortized Cost of Fixed Maturity Securities	$ 4,560.7	$ 4,341.7
Equity Securities at Cost	486.9	561.5
Fair Value of Notes Payable	$ 781.3	$ 804.4
Common Stock, Par Value	$ 0.1	$ 0.1
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares Issued	51,326,751	52,418,246
Common Stock, Shares Outstanding	51,326,751	52,418,246

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Earned Premiums	$ 541.5	$ 536.7	$ 500.1	$ 431.3	$ 451.5	$ 462.8	$ 470.3	$ 477.6	$ 2,009.6	$ 1,862.2	$ 2,025.8
Net Investment Income	79.4	75.9	76.7	70.6	93.1	72.3	72.6	71.1	302.6	309.1	314.7
Other Income	1.4	0.8	0.6	0.9	0.6	0.5	0.2	0.1	3.7	1.4	0.8
Net Realized Gains on Sales of Investments	9.4	5.3	34	3.4	21	8	3.5	6.6	52.1	39.1	99.1
Other-than-temporary Impairment Losses:
Total Other-than-temporary Impairment Losses	(14.9)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.4)	(15.2)	(15.8)
Portion of Losses Recognized in Other Comprehensive Income	0.2	0	0	0	0	0	0	0	0.2	0	1.9
Net Impairment Losses Recognized in Earnings	(14.7)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.2)	(15.2)	(13.9)
Total Revenues	617	615.4	609.2	499.2	559.7	539.8	542.5	554.6	2,340.8	2,196.6	2,426.5
Expenses:
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	416	378.8	375.1	297.7	285.8	300.5	347.5	327.9	1,467.6	1,261.7	1,357.2
Insurance Expenses	177	161.1	162.1	144.9	156.4	158.6	161.3	152.1	645.1	628.4	654.4
Write-off of Long-lived Assets	0	0	11.1	0	0	54.6	0	0	11.1	54.6	0
Loss from Early Extinguishment of Debt	0	0	0	9.1					9.1	0	0
Interest and Other Expenses	25.6	25.7	26.6	29.7	24.4	22.1	22.5	22.7	107.6	91.7	100.5
Total Expenses	618.6	565.6	574.9	481.4	466.6	535.8	531.3	502.7	2,240.5	2,036.4	2,112.1
Income from Continuing Operations before Income Taxes	(1.6)	49.8	34.3	17.8	93.1	4	11.2	51.9	100.3	160.2	314.4
Income Tax Expense	2.9	(11.8)	(6.9)	(4.3)	(29.8)	0.8	(1.9)	(16.7)	(20.1)	(47.6)	(99.9)
Income from Continuing Operations	1.3	38	27.4	13.5	63.3	4.8	9.3	35.2	80.2	112.6	214.5
Discontinued Operations:
Income from Discontinued Operations	3.3	(0.1)	2.3	0	2.1	(0.1)	0	(0.1)	5.5	1.9	3.2
Net Income	$ 4.6	$ 37.9	$ 29.7	$ 13.5	$ 65.4	$ 4.7	$ 9.3	$ 35.1	$ 85.7	$ 114.5	$ 217.7
Income from Continuing Operations Per Unrestricted Share:
Income from Continuing Operations Per Unrestricted Share - Basic (usd pre share)	$ 0.03	$ 0.73	$ 0.53	$ 0.26	$ 1.20	$ 0.09	$ 0.17	$ 0.63	$ 1.55	$ 2.08	$ 3.75
Income from Continuing Operations Per Unrestricted Share - Diluted (usd per share)	0.03	0.73	0.53	0.26	1.20	0.09	0.17	0.63	1.55	2.08	3.74
Net Income Per Unrestricted Share:
Net Income Per Unrestricted Share - Basic ( usd per share)	0.09	0.73	0.57	0.26	1.24	0.09	0.17	0.63	1.65	2.12	3.81
Net Income Per Unrestricted Share - Diluted (usd pre share)	0.09	0.73	0.57	0.26	1.24	0.09	0.17	0.63	1.65	2.12	3.80
Dividends Paid to Shareholders Per Share (usd per share)	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.96	$ 0.96	$ 0.96

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Comprehensive Income [Abstract]
Net Income	$ 85.7	$ 114.5	$ 217.7
Unrealized Holding Gains (Losses)	(177.3)	234.6	(362.8)
Foreign Currency Translation Adjustments	(1.4)	(1)	0.2
Decrease (Increase) in Net Unrecognized Postretirement Benefit Costs	26.1	(98.5)	86.6
Other Comprehensive Income (Loss) Before Income Taxes	(152.6)	135.1	(276)
Other Comprehensive Income Tax Benefit (Expense)	54.2	(47.7)	98.6
Other Comprehensive Income (Loss)	(98.4)	87.4	(177.4)
Total Comprehensive Income (Loss)	$ (12.7)	$ 201.9	$ 40.3

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities:
Net Income	$ 85.7	$ 114.5	$ 217.7
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Decrease (Increase) in Deferred Policy Acquisition Costs	(13.1)	(0.4)	0.5
Amortization of Intangible Assets Acquired	15.4	7.2	8.3
Equity in Earnings of Equity Method Limited Liability Investments	(19)	(9)	(26.4)
Distribution of Accumulated Earnings of Equity Method Limited Liability Investments	8.6	21.7	15.4
Decrease (Increase) in Value of Fair Value Option Investments reported in Investment Income	(0.3)	0.7	0
Amortization of Investment Securities and Depreciation of Investment Real Estate	16.1	15.4	16.2
Net Realized Gains on Sales of Investments	52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings	27.2	15.2	13.9
Loss from Early Extinguishment of Debt	9.1	0	0
Depreciation of Property and Equipment	13.5	16	17.4
Write-off of Long-lived Assets	11.1	54.6	0
Decrease in Other Receivables	49.6	46.2	43.5
Increase (Decrease) in Insurance Reserves	39.6	(54.7)	(72.5)
Decrease in Unearned Premiums	(9.4)	(62)	(52)
Change in Income Taxes	(21.8)	11.2	57.9
Increase (Decrease) in Accrued Expenses and Other Liabilities	22.6	(20.3)	(54.8)
Other, Net	32.2	16.4	36.1
Net Cash Provided by Operating Activities	215	133.6	122.1
Investing Activities:
Sales, Paydowns and Maturities of Fixed Maturities	627.8	573.7	664.4
Purchases of Fixed Maturities	(681.3)	(553)	(744.5)
Sales of Equity Securities	238.4	245.3	182.1
Purchases of Equity Securities	(134)	(235.2)	(213.4)
Acquisition and Improvements of Investment Real Estate	(1.8)	(2.1)	(5.4)
Sales of Investment Real Estate	7.7	0.9	102.7
Sales of and Return of Investment of Equity Method Limited Liability Investments	32.9	55.2	31.3
Acquisitions of Equity Method Limited Liability Investments	(32.4)	(21.4)	(20.5)
Sales of Fair Value Option Investments	0	6.9	0
Purchases of Fair Value Option Investments	(111)	(60.9)	0
Decrease (Increase) in Short-term Investments	104.9	(63.9)	41.8
Acquisition of Businesses, Net of Cash Acquired	57.6	0	0
Disposition of Business, Net of Cash Disposed	0	8.9	3.8
Increase in Other Investments	(3.2)	(8)	(9.1)
Purchase of Corporate-owned Life Insurance	(7.5)	(33.5)	0
Acquisition of Software	(8.9)	(11.3)	(15.2)
Other, Net	(2.6)	(5.9)	(13.2)
Net Cash Provided (Used) by Investing Activities	(28.6)	(104.3)	4.8
Financing Activities:
Net Proceeds from Issuances of Debt	345.8	144	0
Repayments of Debt	(357.3)	0	(5.5)
Common Stock Repurchases	(45)	(114)	(100.4)
Dividends and Dividend Equivalents Paid	(49.7)	(51.8)	(54.9)
Cash Exercise of Stock Options	3.9	0.5	1.7
Other, Net	1.5	1.6	2.4
Net Cash Used by Financing Activities	(100.8)	(19.7)	(156.7)
Increase (Decrease) in Cash	85.6	9.6	(29.8)
Cash, Beginning of Year	76.1	66.5	96.3
Cash, End of Year	$ 161.7	$ 76.1	$ 66.5

Consolidated Statements of Shar

Consolidated Statements of Shareholders’ Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2012	$ 2,161.7	$ 5.8	$ 725	$ 1,118.2	$ 312.7
Beginning Balance, shares at Dec. 31, 2012		58.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	217.7			217.7
Other Comprehensive Income	(177.4)				(177.4)
Cash Dividends to Shareholders	(54.9)			(54.9)
Repurchases of Common Stock	$ (100.4)	$ (0.2)	(36.8)	(63.4)
Repurchases of Common Stock, shares	(3)	(3)
Equity-based Compensation Cost	$ 5.5		5.5
Equity-based Awards, Net of Shares Exchanged	(0.7)		1.1	(1.8)
Equity-based Awards, Net of Shares Exchanged, shares		0.2
Ending Balance at Dec. 31, 2013	2,051.5	$ 5.6	694.8	1,215.8	135.3
Ending Balance, shares at Dec. 31, 2013		55.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	114.5			114.5
Other Comprehensive Income	87.4				87.4
Cash Dividends to Shareholders	(51.8)			(51.8)
Repurchases of Common Stock	$ (115.5)	$ (0.4)	(40.2)	(74.9)
Repurchases of Common Stock, shares	(3.2)	(3.2)
Equity-based Compensation Cost	$ 6.4		6.4
Equity-based Awards, Net of Shares Exchanged	(1.8)		(0.9)	(0.9)
Equity-based Awards, Net of Shares Exchanged, shares		(0.1)
Ending Balance at Dec. 31, 2014	2,090.7	$ 5.2	660.1	1,202.7	222.7
Ending Balance, shares at Dec. 31, 2014		52.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	85.7			85.7
Other Comprehensive Income	(98.4)				(98.4)
Cash Dividends to Shareholders	(49.7)			(49.7)
Repurchases of Common Stock	$ (43.5)	$ (0.1)	(15.5)	(27.9)
Repurchases of Common Stock, shares	(1.2)	(1.2)
Equity-based Compensation Cost	$ 6.5		6.5
Equity-based Awards, Net of Shares Exchanged	1.1		2.9	(1.8)
Equity-based Awards, Net of Shares Exchanged, shares		0.1
Ending Balance at Dec. 31, 2015	$ 1,992.4	$ 5.1	$ 654	$ 1,209	$ 124.3
Ending Balance, shares at Dec. 31, 2015		51.3

Basis of Presentation And Signi

Basis of Presentation And Significant Estimates	12 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Estimates	NOTE 1. BASIS OF PRESENTATION AND SIGNIFICANT ESTIMATES The Consolidated Financial Statements included herein have been prepared on the basis of accounting principles generally accepted in the United States (“GAAP”) and include the accounts of Kemper Corporation (“Kemper”) and its subsidiaries (individually and collectively referred to herein as the “Company”). All significant intercompany accounts and transactions have been eliminated. Use of Estimates The preparation of financial statements in conformity with GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions. The fair values of the Company’s Investments in Fixed Maturities, Investments in Equity Securities, Fair Value Option Investments, Short-term Investments, Trading Securities and Debt are estimated using a hierarchal framework which prioritizes and ranks market price observability. The carrying amounts reported in the Consolidated Balance Sheets approximate fair value for Cash, Short-term Investments and certain other assets and other liabilities because of their short-term nature. The actual value at which financial instruments could actually be sold or settled with a willing buyer or seller may differ from estimated fair values depending on a number of factors, including, but not limited to, current and future economic conditions, the quantity sold or settled, the presence of an active market and the availability of a willing buyer or seller. The process of estimating and establishing reserves for losses and LAE for property and casualty insurance is inherently uncertain, and the actual ultimate net cost of known and unknown claims may vary materially from the estimated amounts reserved. The reserving process is particularly imprecise for claims involving long-tailed exposures, which may not be discovered or reported until years after the insurance policy period has ended. Management considers a variety of factors, including, but not limited to, past claims experience, current claim trends and relevant legal, economic and social conditions, in estimating reserves. A change in any one or more factors is likely to result in the ultimate net claim costs to differ from the estimated reserve. Changes in such estimates may be material and would be recognized in the Consolidated Financial Statements when such estimates change. The process of determining whether an asset is impaired or recoverable relies on projections of future cash flows, operating results and market conditions. Projections are inherently uncertain, and, accordingly, actual future cash flows may differ materially from projected cash flows. As a result, the Company’s assessment of the impairment of long-lived assets is susceptible to the risk inherent in making such projections.

Summary Of Accounting Policies

Summary Of Accounting Policies And Accounting Changes	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Summary Of Accounting Policies And Accounting Changes	NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES Investments Investments in Fixed Maturities include bonds, notes and redeemable preferred stocks. Investments in Fixed Maturities are classified as available for sale and reported at fair value. Net Investment Income, including amortization of purchased premiums and accretion of market discounts, on Investments in Fixed Maturities is recognized as interest over the period that it is earned using the effective yield method. Investments in Equity Securities include common and non-redeemable preferred stocks and other equity interests and are reported at fair value. Investments in common and non-redeemable preferred stocks with readily determinable fair values are classified as available for sale. Dividend income on investments in common and non-redeemable preferred stocks is recognized on the ex-dividend date. Other equity interests primarily consist of exchange traded funds and interests in limited liability companies and limited partnerships in which the Company’s interests are deemed minor. The Company’s share of distributed earnings from other equity interests is recognized as dividend income when received. Unrealized appreciation or depreciation, net of applicable deferred income taxes, on fixed maturities and equity securities classified as available for sale is reported in AOCI included in Shareholders’ Equity. NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) 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. Fair Value Option Investments include investments in certain hedge funds, which the Company has elected the fair value option (“FVO”) to account for such investments. Under the FVO method of accounting, the Company reports changes in the fair value of such investments in Net Investment Income in the Consolidated Statements of Income. The hedge funds are designed to preserve liquidity, while providing higher returns than Kemper would otherwise expect to earn had it invested in other short-term investments. Short-term Investments include fixed maturities that mature within one year from the date of purchase, U.S. Treasury bills, money market mutual funds and repurchase agreements. Short-term Investments are reported at cost, which approximates fair value. Other Investments primarily include loans to policyholders and real estate. Loans to policyholders are carried at unpaid principal balance. Real estate is carried at cost, net of accumulated depreciation. Real estate is depreciated over the estimated useful life of the asset using the straight-line method of depreciation. Real estate is evaluated for impairment when events or circumstances indicate the carrying value may not be recoverable. An impairment loss on real estate is recognized when the carrying value exceeds the sum of undiscounted projected future cash flows as well as the fair value, or, in the case of a property classified as held for sale, when the carrying value exceeds the fair value, net of costs to sell. Gains and losses on sales of investments are computed on the specific identification method and are reported in the Consolidated Statements of Income in the period in which the sales occur. 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. Losses are computed on the specific identification method and reported in the Consolidated Statements of Income in the period that the decline is determined to be other than temporary. The portion of an impairment of an investment in a fixed maturity attributed to a credit loss is reported in Net Impairment Losses Recognized in Earnings in the Consolidated Statements of Income, with the portion of the impairment that is not attributed to a credit loss reported in AOCI. Fair Value Measurements The Company uses a hierarchal framework which prioritizes and ranks the market observability of inputs used in fair value measurements. Market price observability is affected by a number of factors, including the type of asset or liability and the characteristics specific to the asset or liability being measured. Assets and liabilities with readily available, active, quoted market prices or for which fair value can be measured from actively quoted prices generally are deemed to have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value. The Company classifies the inputs used to measure fair value into one of three levels as follows: • Level 1 — Quoted prices in an active market for identical assets or liabilities; • Level 2 — Observable inputs other than Level 1, quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, and model-derived prices whose inputs are observable or whose significant value drivers are observable; and • Level 3 — Unobservable inputs for the asset or liability being measured. Observable inputs are based on market data obtained from independent sources, while unobservable inputs are based on the Company’s market assumptions. Unobservable inputs require significant management judgment or estimation. In some cases, the inputs used to measure an asset or liability may fall into different levels of the fair value hierarchy. In those cases, the fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level of input that is significant to the entire measurement. Such determination requires significant management judgment. However, in accordance with GAAP, the Company is not permitted to use management judgment to adjust quoted market prices in an active market. Deferred Policy Acquisition Costs Costs directly associated with the successful acquisition of business, principally commissions and certain premium taxes and policy issuance costs, are deferred. Costs deferred on property and casualty insurance contracts and short duration health insurance contracts are amortized over the period in which premiums are earned. Costs deferred on traditional life insurance products and other long-duration insurance contracts are primarily amortized over the anticipated premium-paying period of the NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) related policies in proportion to the ratio of the annual premiums to the total premiums anticipated, which is estimated using the same assumptions used in calculating policy reserves. Goodwill The cost of an acquired entity over the fair value of net assets acquired is reported as Goodwill. Goodwill is not amortized, but rather is tested annually for recoverability or when certain triggering events require testing. Insurance Reserves Reserves for losses and LAE on property and casualty insurance coverage and health insurance coverage represent the estimated claim cost and loss adjustment expense necessary to cover the ultimate net cost of investigating and settling all losses incurred and unpaid. Such estimates are based on individual case estimates for reported claims and estimates for incurred but not reported (“IBNR”) losses. These estimates are adjusted in the aggregate for ultimate loss expectations based on historical experience patterns and current economic trends, with any change in the estimated ultimate liabilities being reported in the Consolidated Statements of Income in the period of change. Changes in such estimates may be material. For traditional life insurance products, the reserves for future policy benefits are estimated on the net level premium method using assumptions as of the issue date for mortality, interest, policy lapses and expenses, including provisions for adverse mortality. These assumptions vary by such characteristics as plan, age at issue and policy duration. Mortality assumptions are based on the Company’s historical experience and industry standards. Interest rate assumptions principally range from 3% to 7% . Lapse rate assumptions are based on actual and industry experience. Insurance Reserves for life insurance products also includes an estimate of the Company’s liability for unpaid life insurance claims and claims adjustment expenses, which includes an estimate for IBNR life insurance claims. Except when required by applicable law, the Company does not utilize a database of reported deaths maintained by the Social Security Administration or a comparable database in its operations, including to determine its IBNR liability for life insurance products. Instead of using such a database, the Company calculates its IBNR liability for life insurance products using Company-specific historical information, which includes analyzing average paid claims and the average lag between date of death and the date reported to the Company for claims that due proof of death has been provided. Other Receivables Other Receivables primarily include reinsurance recoverables and accrued investment income. Other Assets Other Assets primarily include property and equipment, internal use software, insurance licenses acquired in business combinations, the value of other intangible assets acquired, corporate-owned life insurance and prepaid expenses. Property and equipment is depreciated over the useful lives of the assets, generally using the straight-line or double declining balance methods of depreciation depending on the asset involved. Internal use software is amortized over the useful life of the asset using the straight-line method of amortization. Write-offs of Long-lived Assets for the year ended December 31, 2015 was a charge of $11.1 million to write off the costs of a computer software development project that was abandoned by the Company’s Property & Casualty Insurance segment. Write-offs of Long-lived Assets for the year ended December 31, 2014 was a charge of $54.6 million to write off certain software for the Company’s Property & Casualty Insurance segment after the Company determined that it was no longer probable that the software would be fully implemented. Insurance licenses acquired in business combinations and other indefinite life intangibles are not amortized, but rather tested periodically for recoverability. Insurance Expenses for the year ended December 31, 2013 includes a charge of $1.4 million to write down the value of insurance licenses acquired for one of Kemper’s insurance subsidiaries to its estimated fair value. Corporate-owned life insurance is reported at cash surrender value with changes due to cost of insurance and investment experience reported in Other Income in the Consolidated Statements of Income. The Company accounts for the present value of the future profits embedded in life insurance in force acquired (“Life VIF”) based on actuarial estimates of the present value of estimated net cash flows. Life VIF was $32.5 million and $36.5 million at December 31, 2015 and 2014 , respectively. Life VIF is amortized using the effective interest method using interest rates NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) consistent with the rates in the underlying insurance contracts. The Company estimates that it will record Life VIF amortization, net of interest, of $3.4 million in 2016, $3.2 million in 2017, $2.8 million in 2018, $2.4 million in 2019 and $2.0 million in 2020. The Company evaluates the Life VIF for recoverability annually. The Company accounts for the present value of the future profits embedded in Property and Casualty Insurance Customer Relationships Acquired (“P&C Customer Relationships”) based on the present value of estimated future cash flows from the customer relationships acquired. P&C Customer Relationships was $11.2 million and $13.3 million at December 31, 2015 and 2014 , respectively. P&C Customer Relationships is amortized using the effective interest method. P&C Customer Relationships is tested for recoverability using undiscounted projections of future cash flows and written down to estimated fair value if the carrying value exceeds the sum of such projections of undiscounted cash flows. The Company accounts for the present value of the future profits embedded in Property and Casualty Insurance Broker Relationships Acquired (“P&C Broker Relationships”) based on the present value of estimated future cash flows from the broker relationships acquired. P&C Broker Relationships was $18.1 million at December 31, 2015 . P&C Broker Relationships is amortized on a straight-line basis over 15 years . P&C Broker Relationships is tested for recoverability using undiscounted projections of future cash flows and written down to estimated fair value if the carrying value exceeds the sum of such projections of undiscounted cash flows. Accrued Expenses and Other Liabilities Accrued Expenses and Other Liabilities primarily include accrued salaries and commissions, pension benefits, postretirement medical benefits and accrued taxes, licenses and fees. Recognition of Earned Premiums and Related Expenses Property and casualty insurance and short duration health insurance premiums are deferred when written and recognized and earned ratably over the periods to which the premiums relate. Unearned Premiums represent the portion of the premiums written related to the unexpired portion of policies in force which has been deferred and is reported as a liability. The Company performs a premium deficiency analysis typically at a product line level, namely automobile insurance, homeowners insurance and other insurance, which is consistent with the manner in which the Company acquires and services policies and measures profitability. Anticipated investment income is excluded from such analysis. A premium deficiency is recognized when the sum of expected claim costs, claim adjustment expenses, unamortized deferred policy acquisition costs and maintenance costs exceeds the related unearned premiums by first reducing related deferred policy acquisition costs to an amount, but not below zero, at which the premium deficiency would not exist. If a premium deficiency remains after first reducing deferred policy acquisition costs, a premium deficiency reserve is established and reported as a liability in the Company’s financial statements. The Company determined that a premium deficiency existed at December 31, 2015 with respect to Alliance United’s automobile insurance and recorded a charge of $9.0 million to reduce related deferred policy acquisition costs to the level at which the premium deficiency did not exist. Traditional life insurance premiums are recognized as revenue when due. Policyholders’ benefits are associated with related premiums to result in recognition of profits over the periods for which the benefits are provided using the net level premium method. Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses include provisions for future policy benefits under life and certain accident and health insurance contracts and provisions for reported claims, estimates for claims incurred but not reported and loss adjustment expenses. Benefit payments in excess of policy account balances are expensed. Reinsurance In the normal course of business, Kemper’s insurance subsidiaries reinsure certain risks above certain retention levels with other insurance enterprises. These reinsurance agreements do not relieve Kemper’s insurance subsidiaries of their legal obligations to the policyholder. Amounts recoverable from reinsurers are included in Other Receivables. Gains related to long-duration reinsurance contracts are deferred and amortized over the life of the underlying reinsured policies. Losses related to long-duration reinsurance contracts are recognized immediately. Any gain or loss associated with reinsurance agreements for which Kemper’s insurance subsidiaries have been legally relieved of their obligations to the policyholder is recognized in the period of relief. NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) Income Taxes Deferred income tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred income tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. A valuation allowance is maintained for the portion of deferred income tax assets that the Company does not expect to recover. Increases in the valuation allowance for deferred income tax assets are recognized as income tax expense. Decreases in the valuation allowance for deferred income tax assets are recognized as income tax benefit. The effect on deferred income tax assets and liabilities of a change in tax rates is recognized in income in the period in which the change is enacted. The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense. Adoption of New Accounting Standards In January 2015, the Financial Accounting Standards Board (“FASB”) issued 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 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 NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) 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. In January 2016, the FASB issued ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. Most significantly, the ASU requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. The ASU also simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When a qualitative assessment indicates that impairment exists, an entity is required to measure the investment at fair value. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. The Company currently records its Investments in Equity Securities at fair value with net unrealized appreciation or depreciation reported in AOCI in Shareholders’ Equity. Adoption of this ASU will require the changes in fair value on Investments in Equity Securities with readily determinable fair values to be recorded in net income. For those Investments in Equity Securities that do not have readily determinable fair values, the Company may choose either of the methods noted earlier in this paragraph. The Company will not be able to determine the cumulative-effect adjustment to its balance sheet until the ASU is adopted and elections on Investments in Equity Securities that do not have readily determinable fair values are made. Subsequent to adoption, the ASU is expected to cause increased volatility in the Company’s statement of income. All recently issued accounting pronouncements with effective dates prior to January 1, 2016 have been adopted by the Company. There were no adoptions of such accounting pronouncements in 2015 that had a material impact on the Company’s Consolidated Financial Statements. The impacts of adoption of ASU 2015-09, Financial Services—Insurance (Topic 944): Disclosures about Short-Duration Contracts, and ASU 2016-01, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, are discussed above. The Company does not expect the adoption of all other recently issued accounting pronouncements with effective dates after December 31, 2015 to have a material impact on the Company’s financial statements.

Acquisition of Business (Notes)

Acquisition of Business (Notes)	12 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Acquisition of Business [Text Block]	NOTE 3. 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 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 brokers and gained expertise in serving the Hispanic market. NOTE 3. ACQUISITION OF BUSINESS (Continued) The Company has completed the allocation of the purchase price to the assets acquired and liabilities assumed. 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 Consolidated Balance Sheet at December 31, 2015 include an indemnification receivable of $15.9 million . The carrying amount, net of accumulated amortization, of the intangible assets acquired by class at December 31, 2015 and the acquisition date are presented below. DOLLARS IN MILLIONS Dec 31, At Acquisition Date P & C Broker Relationships $ 18.1 $ 18.9 Value of In Force Policies 0.2 9.2 Other 3.7 4.5 Value of Intangible Assets Acquired $ 22.0 $ 32.6 P & C Broker Relationships are being amortized over 15 years on a straight-line basis. Value of In Force Policies (“P & C VIF”) 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	12 Months Ended
	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investments	NOTE 4. INVESTMENTS The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2015 were: DOLLARS IN MILLIONS Amortized Cost Gross Unrealized Fair Value Gains Losses U.S. Government and Government Agencies and Authorities $ 298.0 $ 26.2 $ (3.6 ) $ 320.6 States and Political Subdivisions 1,513.7 111.6 (2.7 ) 1,622.6 Corporate Securities: Bonds and Notes 2,651.5 202.0 (40.7 ) 2,812.8 Redeemable Preferred Stocks 3.7 0.1 — 3.8 Collateralized Loan Obligations 90.0 0.3 (3.0 ) 87.3 Other Mortgage- and Asset-backed 3.8 1.4 — 5.2 Investments in Fixed Maturities $ 4,560.7 $ 341.6 $ (50.0 ) $ 4,852.3 Included in the fair value of Other Mortgage- and Asset-backed investments at December 31, 2015 are $3.8 million of collateralized debt obligations , $1.3 million of non-governmental residential mortgage-backed securities and $0.1 million of other asset-backed securities . 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 Included in the fair value of Other Mortgage- and Asset-backed investments at December 31, 2014 are $3.9 million of collateralized debt obligations , $1.3 million of non-governmental residential mortgage-backed securities and $0.2 million of other asset-backed securities . Accrued Expenses and Other Liabilities included unsettled purchases of Investments in Fixed Maturities of $5.6 million at December 31, 2015 , all of which settled in the following month. There were no unsettled purchases of Investments in Fixed Maturities at December 31, 2014 . There were no unsettled sales of Investments in Fixed Maturities at either December 31, 2015 or December 31, 2014 . The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2015 by contractual maturity were: DOLLARS IN MILLIONS Amortized Cost Fair Value Due in One Year or Less $ 52.4 $ 54.6 Due after One Year to Five Years 806.8 840.2 Due after Five Years to Ten Years 1,475.3 1,507.1 Due after Ten Years 2,009.5 2,227.9 Mortgage- and Asset-backed Securities Not Due at a Single Maturity Date 216.7 222.5 Investments in Fixed Maturities $ 4,560.7 $ 4,852.3 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- NOTE 4. INVESTMENTS (Continued) and Asset-backed Securities Not Due at a Single Maturity Date at December 31, 2015 consisted of securities issued by the Government National Mortgage Association with a fair value of $107.0 million , securities issued by the Federal National Mortgage Association with a fair value of $17.1 million , securities issued by the Federal Home Loan Mortgage Corporation with a fair value of $6.0 million and securities of other non-governmental issuers with a fair value of $92.4 million . Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2015 were: DOLLARS IN MILLIONS Cost Gross Unrealized Fair Value Gains Losses Preferred Stocks: Finance, Insurance and Real Estate $ 80.8 $ 4.9 $ (0.8 ) $ 84.9 Other Industries 17.1 2.7 (0.8 ) 19.0 Common Stocks: Finance, Insurance and Real Estate 18.9 5.3 (1.0 ) 23.2 Other Industries 9.4 4.3 (0.2 ) 13.5 Other Equity Interests: Exchange Traded Funds 179.7 1.1 (3.7 ) 177.1 Limited Liability Companies and Limited Partnerships 181.0 25.0 (0.5 ) 205.5 Investments in Equity Securities $ 486.9 $ 43.3 $ (7.0 ) $ 523.2 Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2014 were: DOLLARS IN MILLIONS Gross Unrealized 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 December 31, 2015 or December 31, 2014 . NOTE 4. INVESTMENTS (Continued) An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2015 is presented below. DOLLARS IN MILLIONS Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 56.6 $ (1.6 ) $ 24.1 $ (2.0 ) $ 80.7 $ (3.6 ) States and Political Subdivisions 131.0 (2.6 ) 0.9 (0.1 ) 131.9 (2.7 ) Corporate Securities: Bonds and Notes 783.8 (26.0 ) 133.6 (14.7 ) 917.4 (40.7 ) Collateralized Loan Obligations 57.4 (2.9 ) 0.8 (0.1 ) 58.2 (3.0 ) Other Mortgage- and Asset-backed — — 0.3 — 0.3 — Total Fixed Maturities 1,028.8 (33.1 ) 159.7 (16.9 ) 1,188.5 (50.0 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 2.7 — 12.3 (0.8 ) 15.0 (0.8 ) Other Industries 7.3 (0.8 ) — — 7.3 (0.8 ) Common Stocks: Finance, Insurance and Real Estate 16.3 (1.0 ) — — 16.3 (1.0 ) Other Industries 2.8 (0.3 ) — — 2.8 (0.3 ) Other Equity Interests: Exchange Traded Funds 135.2 (3.7 ) — — 135.2 (3.7 ) Limited Liability Companies and Limited Partnerships 2.7 (0.5 ) — — 2.7 (0.5 ) Total Equity Securities 167.0 (6.3 ) 12.3 (0.8 ) 179.3 (7.1 ) Total $ 1,195.8 $ (39.4 ) $ 172.0 $ (17.7 ) $ 1,367.8 $ (57.1 ) 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 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 December 31, 2015 , were $50.0 million , of which $16.9 million was related to fixed maturities that were in an unrealized loss position for 12 months or longer. There were $0.2 million unrealized losses at December 31, 2015 related to securities for which the Company has recognized credit losses in earnings in the preceding table under the heading “Less Than 12 Months”. There were no unrealized losses at December 31, 2015 related to securities for which the Company has recognized credit losses in earnings in the preceding table under the heading “12 Months or Longer.” Investment-grade fixed maturity investments comprised $33.5 million and below-investment-grade fixed maturity investments comprised $16.5 million of the unrealized losses on investments in fixed maturities at December 31, 2015 . For below-investment-grade fixed maturity investments in an unrealized loss position, the unrealized loss amount, on average, was approximately 8% of the amortized cost basis of the investment. At December 31, 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 recovery of its amortized cost basis, which may be at maturity. Based on the Company’s evaluation at December 31, 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 to not 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. NOTE 4. INVESTMENTS (Continued) 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 December 31, 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 December 31, 2015 . An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2014 is presented below. DOLLARS IN MILLIONS Less Than 12 Months 12 Months or Longer Total 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 ) Redeemable Preferred Stocks — — — — — — 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 ) NOTE 4. INVESTMENTS (Continued) Unrealized losses on fixed maturities, which the Company 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 heading “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 to not 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. The following table sets forth the pre-tax amount of OTTI credit losses, recognized in Retained Earnings for Investments in Fixed Maturities held by the Company as of December 31, 2015 , 2014 and 2013 , for which a portion of the OTTI loss related to factors other than credit has been recognized in AOCI, and the corresponding changes in such amounts. DOLLARS IN MILLIONS 2015 2014 2013 Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Year $ 5.3 $ 9.9 $ 4.6 Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year 0.2 2.4 1.8 Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year — 0.6 7.3 Reductions for Change in Impairment Status: From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell (0.4 ) (2.4 ) (3.2 ) Reductions for Investments Sold During Year — (5.2 ) (0.6 ) Balance at End of Year $ 5.1 $ 5.3 $ 9.9 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. In 2015, aggregate investment income (losses) from Equity Method Limited Liability Investments exceeded 10% of the Company’s pretax consolidated net income. Accordingly, the Company is disclosing aggregated summarized financial data for its Equity Method Limited Liability Investments. Such aggregated summarized financial data does not represent the Company’s proportionate share of the Equity Method Limited Liability Investment assets or earnings. Aggregate total assets of the Equity Method Limited Liability Investments in which the Company invested totaled $3,801.7 million and $3,349.7 million as of December 31, 2015 and 2014 , respectively. Aggregate total liabilities of the Equity Method Limited Liability Investments in which the Company invested totaled $879.1 million and $711.5 million as of December 31, 2015 and 2014 , respectively. Aggregate net income of the Equity Method Limited Liability Investments in which the Company invested totaled $159.6 million , $96.2 million and $181.1 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. The aggregate summarized financial data is based on the most recent and sufficiently-timely financial information available to the Company as of the respective reporting dates and periods. The Company’s maximum exposure to loss at December 31, 2015 is limited to the total carrying value of $190.6 million . In addition, the Company had outstanding commitments totaling approximately $58.8 million to fund Equity Method Limited Liability Investments at December 31, 2015 . NOTE 4. INVESTMENTS (Continued) The carrying values of the Company’s Other Investments at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Loans to Policyholders at Unpaid Principal $ 288.4 $ 283.4 Real Estate at Depreciated Cost 149.8 160.9 Trading Securities at Fair Value 4.7 4.9 Other 0.3 0.4 Total $ 443.2 $ 449.6

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	NOTE 5. GOODWILL Goodwill balances by business segment at December 31, 2015 and December 31, 2014 were: DOLLARS IN MILLIONS 2015 2014 Property & Casualty Insurance 103.6 92.4 Life & Health Insurance 219.4 219.4 Total $ 323.0 $ 311.8 The Company tests goodwill for recoverability on an annual basis at the beginning of the first quarter and, if circumstances or events indicate that the fair value of a reporting unit may have declined below its carrying value, such tests are performed at intervening interim periods. The Company principally used projections of discounted future cash flows to estimate the fair values of the reporting units tested. For each reporting unit tested, the estimated fair value exceeded the carrying value of the reporting unit, and the Company concluded that the associated goodwill was recoverable at the aforementioned dates tested. Goodwill in the Property & Casualty Insurance segment increased by $11.2 million due to the acquisition of Alliance United. See Note 3 , “ Acquisition of Business ” to the Consolidated Financial Statements for additional information pertaining to the acquisition of Alliance United.

Property and Casualty Insurance

Property and Casualty Insurance Reserves	12 Months Ended
	Dec. 31, 2015
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Property and Casualty Insurance Reserves	NOTE 6. PROPERTY AND CASUALTY INSURANCE RESERVES Property and Casualty Insurance Reserve activity for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Beginning Property and Casualty Insurance Reserves: Gross of Reinsurance at Beginning of Year $ 733.9 $ 843.5 $ 970.6 Less Reinsurance Recoverables at Beginning of Year 54.9 63.4 66.2 Property and Casualty Insurance Reserves, Net of Reinsurance at Beginning of Year 679.0 780.1 904.4 Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification 125.4 — — Incurred Losses and LAE related to: Current Year: Continuing Operations 1,123.3 965.4 1,056.5 Prior Years: Continuing Operations (11.5 ) (53.5 ) (59.8 ) Discontinued Operations (8.6 ) (3.6 ) (4.8 ) Total Incurred Losses and LAE related to Prior Years (20.1 ) (57.1 ) (64.6 ) Total Incurred Losses and LAE 1,103.2 908.3 991.9 Paid Losses and LAE related to: Current Year: Continuing Operations 723.2 639.8 682.2 Prior Years: Continuing Operations 366.2 360.4 421.7 Discontinued Operations 7.4 9.2 12.3 Total Paid Losses and LAE related to Prior Years 373.6 369.6 434.0 Total Paid Losses and LAE 1,096.8 1,009.4 1,116.2 Property and Casualty Insurance Reserves, Net of Reinsurance and Indemnification at End of Year 810.8 679 780.1 Plus Reinsurance and Indemnification Recoverables at End of Year 52.0 54.9 63.4 Property and Casualty Insurance Reserves, Gross of Reinsurance at End of Year $ 862.8 $ 733.9 $ 843.5 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 Consolidated Statements of Income in the period of change. In 2015 , the Company reduced its property and casualty insurance reserves by $20.1 million to recognize favorable development of losses and LAE from prior accident years, including the impact of adverse development of $7.7 million , net of estimated indemnification recoveries, related to Alliance United for periods prior to the date of its acquisition. Personal lines insurance loss and LAE reserves developed favorably by $13.3 million and commercial lines insurance loss and LAE reserves developed favorably by $6.8 million . Personal automobile insurance loss and LAE reserves developed favorably by $1.8 million , net of the adverse development related to Alliance United, homeowners insurance loss and LAE reserves developed favorably by $10.8 million , and other personal lines loss and LAE reserves developed favorably by $0.7 million . Excluding the adverse development related to Alliance United for periods prior to the date of its acquisition, personal lines insurance losses and LAE reserves developed favorably by $21.0 million due primarily to the emergence of more favorable loss patterns than expected for the 2013, 2012 and 2011 accident years. Commercial lines insurance loss and LAE reserves included adverse development of $1.8 million from continuing operations and favorable development of $8.6 million from discontinued operations. In 2014 , the Company reduced its property and casualty insurance reserves by $57.1 million to recognize favorable development of losses and LAE from prior accident years. Personal lines insurance loss and LAE reserves developed favorably by $50.9 million and commercial lines insurance loss and LAE reserves developed favorably by $6.2 million . Personal NOTE 6. PROPERTY AND CASUALTY INSURANCE RESERVES (Continued) automobile insurance loss and LAE reserves developed favorably by $31.6 million , homeowners insurance loss and LAE reserves developed favorably by $14.8 million and other personal lines loss and LAE reserves developed favorably by $4.5 million . The personal lines insurance losses and LAE reserves developed favorably due primarily to the emergence of more favorable loss patterns than expected for the three most recent prior accident years. Commercial lines insurance loss and LAE reserves included favorable development of $2.6 million from continuing operations and $3.6 million from discontinued operations. Commercial lines insurance losses and LAE reserves developed favorably from continuing operations due primarily to the emergence of more favorable loss patterns than expected for the 2013, 2011 and 2010 accident years. In 2013 , the Company reduced its property and casualty insurance reserves by $64.6 million to recognize favorable development of losses and LAE from prior accident years. Personal lines insurance loss and LAE reserves developed favorably by $56.8 million and commercial lines insurance loss and LAE reserves developed favorably by $7.8 million . Personal automobile insurance loss and LAE reserves developed favorably by $30.1 million , homeowners insurance loss and LAE reserves developed favorably by $20.1 million and other personal lines loss and LAE reserves developed favorably by $6.6 million . The personal lines insurance losses and LAE reserves developed favorably due primarily to the emergence of more favorable loss patterns than expected for the four most recent prior accident years. Commercial lines insurance loss and LAE reserves included favorable development of $3.0 million from continuing operations and $4.8 million from discontinued operations. Commercial lines insurance losses and LAE reserves developed favorably from continuing operations due primarily to the emergence of more favorable loss patterns than expected for the 2011, 2010 and 2009 accident years, partially offset by less favorable loss patterns than expected for the 2012 accident year. The Company cannot predict whether loss and LAE reserves will develop favorably or unfavorably from the amounts reported in the Consolidated Financial Statements. The Company believes that any such development will not have a material effect on the Company’s consolidated financial position, but could have a material effect on the Company’s consolidated financial results for a given period. Reinsurance and indemnification recoverables on property and casualty insurance reserves were $52.0 million and $54.9 million at December 31, 2015 and 2014 , respectively. These recoverables are concentrated with several reinsurers, the vast majority of which are highly rated by one or more of the principal investor and/or insurance company rating agencies. While most of these recoverables were unsecured at December 31, 2015 and 2014 , the agreements with the reinsurers generally provide for some form of collateralization upon the occurrence of certain events.

Debt

Debt	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt	NOTE 7. DEBT Total amortized cost of debt outstanding at December 31, 2015 and 2014 was: DOLLARS IN MILLIONS 2015 2014 Senior Notes: 6.00% Senior Notes due November 30, 2015 $ — $ 249.5 6.00% Senior Notes due May 15, 2017 359.1 358.5 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 $ 750.6 $ 752.1 NOTE 7. DEBT (Continued) Interest Expense, including facility fees, accretion of discount and amortization of issuance costs, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Notes Payable under Revolving Credit Agreement $ 0.8 $ 0.8 $ 1.4 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 15.5 15.4 6.00% Senior Notes due May 15, 2017 22.2 22.2 22.2 4.35% Senior Notes due February 15, 2025 9.5 — — 7.375% Subordinated Debentures due February 27, 2054 11.1 9.4 — Mortgage Note Payable — — 0.2 Interest Expense before Capitalization of Interest 47.3 47.9 39.2 Capitalization of Interest (0.8 ) (1.0 ) (0.9 ) Total Interest Expense $ 46.5 $ 46.9 $ 38.3 Interest Paid, including facility fees, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Notes Payable under Revolving Credit Agreement $ 1.4 $ 0.6 $ 0.8 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 15.0 15.0 6.00% Senior Notes due May 15, 2017 21.6 21.6 21.6 4.35% Senior Notes due February 15, 2025 5.2 — — 7.375% Subordinated Debentures due February 27, 2054 11.1 8.5 — Mortgage Note Payable — — 0.3 Total Interest Paid $ 44.1 $ 45.7 $ 37.7 On June 2, 2015, Kemper amended and restated 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 and restated, provides for fixed and floating rate advances for periods up to six months at various interest rates. The credit agreement, as amended and restated, 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 and United Insurance. Proceeds from advances under the credit agreement, as amended and restated, may be used for general corporate purposes, including repayment of existing indebtedness. There were no outstanding borrowings under the credit agreement at either December 31, 2015 or December 31, 2014 . Trinity and United Insurance are members of the FHLB of Dallas and Chicago, respectively. Effective December 31, 2013, Trinity and the FHLB of Dallas entered into agreements pursuant to which Trinity may obtain advances from the FHLB of Dallas. Effective March 18, 2014, United Insurance and the FHLB of Chicago entered into agreements pursuant to which United Insurance may obtain advances from the FHLB of Chicago. 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 2015 , Trinity borrowed and repaid $77.5 million under its agreement with the FHLB of Dallas. During 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 December 31, 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 NOTE 7. DEBT (Continued) 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. On February 27, 2014, Kemper issued $150.0 million of its 7.375% subordinated debentures due February 27, 2054 (the “2054 Debentures”). The net proceeds of the issuance were $144.0 million , net of discount and transaction costs, for an effective yield of 7.69% . The subordinated debentures are unsecured and are subordinated and junior to the senior indebtedness of Kemper. Interest on the subordinated debentures is payable quarterly. As long as no event of default has occurred, Kemper may defer interest payments on the subordinated debentures for up to five consecutive years without giving rise to an event of default. During a deferral period, interest will continue to accrue at the stated interest rate compounded quarterly. Kemper is permitted to redeem some or all of the subordinated debentures on or after February 27, 2019, at a redemption price that is equal to their principal amount plus accrued and unpaid interest. Kemper is permitted to redeem the subordinated debentures in whole, but not in part, at any time prior to February 27, 2019, within 90 days of the occurrence of certain tax events or rating agency events, at specified redemption prices.

Leases

Leases	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Leases	NOTE 8. LEASES The Company leases certain office space under non-cancelable operating leases, with initial terms typically ranging from one to ten years, along with options that permit renewals for additional periods. The Company also leases certain equipment under non-cancellable operating leases, with initial terms typically ranging from one to five years. Minimum rent is expensed on a straight-line basis over the term of the lease. Net rental expense for operating leases for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Minimum Rental Expense $ 20.7 $ 21.5 $ 28.3 Less Sublease Rental Income (1.7 ) (1.3 ) (1.8 ) Net Rental Expense $ 19.0 $ 20.2 $ 26.5 Future minimum lease payments under capital and operating leases at December 31, 2015 were: DOLLARS IN MILLIONS Capital Leases Operating Leases 2016 $ 2.4 $ 17.8 2017 0.7 16.5 2018 0.1 11.9 2019 — 8.6 2020 — 6.3 2021 and Thereafter — 14.2 Total Future Payments $ 3.2 $ 75.3 Less Imputed Interest (0.2 ) Present Value of Minimum Capital Lease Payments $ 3.0 The total of minimum rentals to be received in the future under non-cancellable subleases was $3.9 million at December 31, 2015 .

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Stockholders' Equity	NOTE 9. SHAREHOLDERS’ EQUITY Kemper is authorized to issue 20 million shares of $0.10 par value preferred stock and 100 million shares of $0.10 par value common stock. No preferred shares were issued or outstanding at December 31, 2015 and 2014 . There were 51,326,751 shares and 52,418,246 shares of common stock outstanding at December 31, 2015 and 2014 , respectively. Common stock outstanding included 80,848 shares and 163,720 shares at December 31, 2015 and 2014 , respectively, that have been issued, subject to certain vesting and other requirements, in connection with the Company’s long-term equity compensation plans. See Note 10 , NOTE 9. SHAREHOLDERS’ EQUITY (Continued) “ Long-Term Equity-based Compensation ,” to the Consolidated Financial Statements for a discussion of the restrictions and vesting provisions. Kemper repurchased and retired 1.2 million shares of its common stock in open market transactions at an aggregate cost of $43.5 million in 2015 . Kemper repurchased and retired 3.2 million shares of its common stock in open market transactions at an aggregate cost of $115.5 million in 2014 . Kemper repurchased and retired 3.0 million shares of its common stock in open market transactions at an aggregate cost of $100.4 million in 2013 . Various state insurance laws restrict the amount that an insurance subsidiary may pay in the form of dividends, loans or advances without the prior approval of regulatory authorities. Also, that portion of an insurance subsidiary’s net equity which results from differences between statutory insurance accounting practices and GAAP would not be available for cash dividends, loans or advances. Kemper’s insurance subsidiaries paid dividends of $285.0 million to Kemper in 2015 . In 2016 , Kemper’s insurance subsidiaries would be able to pay $168 million in dividends to Kemper without prior regulatory approval. Kemper’s insurance subsidiaries had net assets of $2.4 billion , determined in accordance with GAAP, that were restricted from payment to Kemper without prior regulatory approval at December 31, 2015 . Kemper’s insurance subsidiaries are required to file financial statements prepared on the basis of statutory insurance accounting practices, a comprehensive basis of accounting other than GAAP. Statutory capital and surplus for the Company’s life and health insurance subsidiaries was $394.6 million and $437.3 million at December 31, 2015 and 2014 , respectively. Statutory net income for the Company’s life and health insurance subsidiaries was $62.8 million , $100.7 million and $81.5 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Statutory capital and surplus for the Company’s property and casualty insurance subsidiaries was $957.7 million and $947.5 million at December 31, 2015 and 2014 , respectively. Statutory net income for the Company’s property and casualty insurance subsidiaries was $58.9 million , $85.7 million and $138.8 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Statutory capital and surplus and statutory net income exclude parent company operations. Kemper’s insurance subsidiaries are also required to hold minimum levels of statutory capital and surplus to satisfy regulatory requirements. The minimum statutory capital and surplus, or company action level RBC, necessary to satisfy regulatory requirements for the Company’s life and health insurance subsidiaries collectively was $134.4 million at December 31, 2015 . The minimum statutory capital and surplus necessary to satisfy regulatory requirements for the Company’s property and casualty insurance subsidiaries collectively was $335.9 million at December 31, 2015 . Company action level RBC is the level at which a company is required to file a corrective action plan with its regulators and is equal to 200% of the authorized control level RBC. In 2015 , Kemper paid dividends of $49.7 million to its shareholders. Except for certain financial covenants under the 2016 Credit Agreement or during any period in which Kemper elects to defer interest payments, there are no restrictions on Kemper’s ability to pay dividends to its shareholders. Certain financial covenants, namely minimum net worth and a maximum debt to total capitalization ratio, under the 2016 Credit Agreement could limit the amount of dividends that Kemper may pay to shareholders at December 31, 2015 . Kemper had the ability to pay without restrictions $287 million in dividends to its shareholders and still be in compliance with all financial covenants under the 2016 Credit Agreement at December 31, 2015 .

Long-term Equity-based Compensa

Long-term Equity-based Compensation	12 Months Ended
	Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Long-Term Equity-Based Compensation	NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION On May 4, 2011, Kemper’s shareholders approved the 2011 Omnibus Equity Plan (“Omnibus Plan”). The Omnibus Plan replaced the Company’s previous employee stock option plans, director stock option plan and restricted stock plan (collectively, the “Prior Plans”). Awards previously granted under the Prior Plans remain outstanding in accordance with their original terms. Beginning May 4, 2011, equity-based compensation awards may only be granted under the Omnibus Plan. A maximum number of 10,000,000 shares of Kemper common stock may be issued under the Omnibus Plan (the “Share Authorization”). As of December 31, 2015 , there were 7,636,921 common shares available for future grants under the Omnibus Plan, of which 538,500 shares were reserved for future grants based on the achievement of performance goals under the terms of outstanding performance-based restricted stock and performance-based restricted stock unit (“RSU”) awards. The design of the Omnibus Plan provides for fungible use of shares to determine the number of shares available for future grants, with a fungible conversion factor of three to one, such that the Share Authorization will be reduced at two different rates, depending on the type of award granted. Each share of Kemper common stock issuable upon the exercise of stock options or stock appreciation rights will reduce the number of shares available for future grant under the Share Authorization by one share, while each share of Kemper common stock issued pursuant to “full value awards” will reduce the number of shares available NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION (Continued) for future grant under the Share Authorization by three shares. “Full value awards” are awards, other than stock options or stock appreciation rights, that are settled by the issuance of shares of Kemper common stock and include restricted stock, RSUs and deferred stock units (“DSUs”), if settled with stock, and other stock-based awards. Outstanding equity-based compensation awards at December 31, 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 DSUs. Effective February 4, 2014, the Company began issuing time-based and performance-based RSUs. Recipients of restricted stock receive full dividend and voting rights on the same basis as all other outstanding shares of Kemper common stock. RSUs and DSUs give the recipient the right to receive one share of Kemper common stock for each RSU or DSU issued. 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 as described below 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. For equity-based compensation awards with a graded vesting schedule, the Company recognizes compensation expense on a straight-line basis over the requisite service period for each separately-vesting portion of the awards as if each award were, in substance, multiple awards. Compensation expense is recognized only for those awards expected to vest, with forfeitures estimated at the date of grant based on the Company’s historical experience and future expectations. Equity-based compensation expense was $6.5 million , $6.4 million and $5.5 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Total unamortized compensation expense related to nonvested awards at December 31, 2015 was $5.8 million , which is expected to be recognized over a weighted-average period of 1.9 years . The Compensation Committee of the Board of Directors, or the Board’s authorized designee, has sole discretion to determine the persons to whom awards under the Omnibus Plan are granted, and the material terms of the awards. For Tandem Awards, material terms include the number of shares covered by such awards and the exercise price, vesting and expiration dates of such awards. Tandem Awards are non-transferable. The exercise price of Tandem Awards is the fair value of Kemper’s common stock on the date of grant. Employee Tandem Awards, time-based restricted stock awards and time-based RSU awards generally vest, beginning six months after date of grant, in four equal annual installments over a period of three and one-half years, with the Tandem Awards expiring ten years from the date of grant. Employee performance-based restricted stock and RSU awards generally vest over a period of three years, subject to achievement of performance goals and other restrictions. Under the Non-employee Director compensation programs in effect for 2015 , 2014 and 2013 , each Non-employee Director receives an initial option award to purchase 4,000 shares of Kemper common stock immediately upon becoming a director, and in addition, on the date of each annual meeting of Kemper’s shareholders, automatically receives an annual option award to purchase 4,000 shares of common stock. Prior to May 1, 2013, such options granted to Non-employee Directors were exercisable one year from the date of grant at an exercise price equal to the fair value of Kemper’s common stock on the date of grant and expired ten years from the date of grant. Effective May 1, 2013, new grants of such options are fully vested and exercisable on the date of grant at an exercise price equal to the fair value of Kemper’s common stock on the date of grant. In addition to the annual option awards, under the compensation programs in effect for 2015 , 2014 and 2013 , annual awards to each Non-employee Director include 500 DSUs. The DSUs granted to Non-employee Directors are fully vested on the date of grant. Conversion of the DSUs into shares of Kemper’s common stock is deferred until the date a director’s board service terminates. Prior to creation of the Omnibus Plan, all of the Company’s previous stock option plans included provisions, subject to certain limitations, to automatically grant restorative, or reload stock options (“Restorative Options”), to replace shares of previously owned Kemper common stock that an exercising option holder surrenders, either actually or constructively, to satisfy the exercise price and/or tax withholding obligations relating to the exercise. The restorative feature was eliminated prospectively for original option awards granted on or after February 3, 2009. Restorative Options may still be granted, subject to certain limitations, in connection with the exercise of original options granted before February 3, 2009. Restorative Options are subject to the same terms and conditions as the original options, including the expiration date, except that the exercise price is equal to the fair value of Kemper common stock on the date of grant of a Restorative Option and cannot be exercised until six months after the date of grant. The grant of a Restorative Option does not result in an increase in the total number of shares and options held by an employee, but changes the mix of the two. The Company uses the Black-Scholes option pricing model to estimate the fair value of each Tandem Award on the date of grant. The expected terms of Tandem Awards are developed by considering the Company’s historical Tandem Award exercise experience, demographic profiles, historical share retention practices of employees and assumptions about their propensity for NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION (Continued) early exercise in the future. Further, the Company aggregates individual awards into relatively homogenous groups that exhibit similar exercise behavior to obtain a more refined estimate of the expected term of options. Expected volatility is estimated using weekly historical volatility. The Company believes that historical volatility is currently the best estimate of expected volatility. The dividend yield in 2015 , 2014 and 2013 was calculated by taking the natural logarithm of the annualized yield divided by the Kemper common stock price on the date of grant. The risk-free interest rate was the yield on the grant date of U.S. Treasury zero coupon issues with a maturity comparable to the expected term of the option. The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the years ended December 31, 2015 , 2014 and 2013 are presented below. 2015 2014 2013 RANGE OF VALUATION ASSUMPTIONS Expected Volatility 21.31 % - 41.65 % 25.76 % - 44.43 % 39.10 % - 48.23 % Risk-free Interest Rate 1.08 - 1.96 1.07 - 2.14 0.62 - 1.38 Expected Dividend Yield 2.37 - 2.62 2.53 - 2.60 2.83 - 3.00 WEIGHTED-AVERAGE EXPECTED LIFE IN YEARS Employee Grants 4 - 7 4 - 7 4 - 7 Director Grants 5.5 6 6 Tandem Award activity for the year ended December 31, 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 397,532 37.51 Exercised (629,625 ) 31.84 Forfeited or Expired (605,461 ) 46.45 Outstanding at December 31, 2015 1,428,157 39.75 5.4 $ 2.1 Vested and Expected to Vest at December 31, 2015 1,393,530 $ 39.84 5.3 $ 2.0 Exercisable at December 31, 2015 978,437 $ 41.02 3.8 $ 1.6 The weighted-average grant-date fair values of Tandem Awards granted during 2015 , 2014 and 2013 were $7.85 , $10.49 and $10.20 , respectively. Total intrinsic value of Tandem Awards exercised was $4.6 million , $0.4 million and $4.1 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Cash received from exercises of Tandem Awards was $3.9 million , $0.5 million and $1.7 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Total tax benefit realized for tax deductions from exercises of Tandem Awards was $1.6 million , $0.1 million and $1.4 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION (Continued) Information pertaining to Tandem Awards outstanding at December 31, 2015 is presented below. Outstanding Exercisable Range of Exercise Prices ($) Shares Subject to Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Shares Subject to Awards Weighted- average Exercise Price Per Share ($) 15.01 - 20.00 4,000 16.48 3.35 4,000 16.48 20.01 - 25.00 14,500 23.47 4.07 14,500 23.47 25.01 - 30.00 75,750 28.67 5.46 75,750 28.67 30.01 - 35.00 173,625 33.20 7.11 131,998 33.12 35.01 - 40.00 600,000 36.55 7.73 290,187 36.83 40.01 - 45.00 103,782 40.70 9.89 5,502 40.70 45.01 - 50.00 456,500 48.80 0.59 456,500 48.80 15.01 - 50.00 1,428,157 39.75 5.36 978,437 41.02 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 year ended December 31, 2015 is presented below. Time-based Restricted Stock Awards Time-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- average Grant-date Fair Value Per RSU Nonvested Balance at Beginning of the Year 53,095 $ 32.42 30,024 $ 36.60 Granted — — 74,375 36.79 Vested (18,733 ) 31.09 (16,701 ) 36.33 Forfeited (4,914 ) 29.48 (2,650 ) 36.19 Nonvested Balance at December 31, 2015 29,448 $ 33.77 85,048 $ 36.84 Prior to February 3, 2009, only awards of time-vested restricted stock had been granted. Beginning on February 3, 2009, in addition to time-vested restricted stock granted to certain employees and officers, the Company began making performance-based restricted awards to certain officers and employees. 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 a 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. If, at the end of the applicable performance period, the Company’s relative performance: • exceeds the “target” performance level, additional shares of stock will be issued to the award recipient; • is below the “target” performance level, but at or above a “minimum” performance level, only a portion of the shares of performance-based restricted stock originally issued to the award recipient will vest; or • is below a “minimum” performance level, none of the shares of performance-based restricted stock originally issued to the award recipient will vest. The grant date fair values of the performance-based restricted stock and performance-based RSU awards are determined using the Monte Carlo simulation method. The Monte Carlo simulation model produces a risk-neutral simulation of the daily returns on the common stock of Kemper and each of the other companies included in the peer group. Returns generated by the simulation depend on the risk-free interest rate used and the volatilities of, and the correlation between, these stocks. The model simulates stock prices and dividend payouts to the end of the three-year performance period. Total shareholder returns are generated for each of these stocks based on the simulated prices and dividend payouts. The total shareholder returns are then NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION (Continued) ranked, and Kemper’s simulated ranking is converted to a payout percentage based on the terms of the performance-based restricted stock and performance-based RSU awards. The payout percentage is applied to the simulated stock price at the end of the performance period, reinvested dividends are added back, and the total is discounted to the valuation date at the risk-free rate. This process is repeated approximately ten thousand times, and the grant date fair value is equal to the average of the results from these trials. Activity related to nonvested performance-based restricted stock and nonvested performance-based RSU awards for the year ended December 31, 2015 is presented below. Performance-based Restricted Stock Awards Performance-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- average Grant-date Fair Value Per RSU 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 December 31, 2015 51,400 $ 42.12 128,100 $ 41.85 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 and 2014 three-year performance periods was 67,625 common shares and 60,475 common shares, respectively, (as “full value awards,” the equivalent of 202,875 shares and 181,425 shares, respectively, under the Share Authorization) at December 31, 2015 . For the 2013 three-year performance period, the Company’s performance level was below the minimum performance level, and all of the related 51,400 shares of performance-based restricted shares were forfeited on February 4, 2016, the three-year anniversary of their grant date. For the 2012 three-year performance period, the Company’s performance level was below the minimum performance level, and all of the related 57,775 shares of performance-based restricted shares were forfeited on January 31, 2015, the three-year anniversary of their grant date. For the 2011 three-year performance period, the Company’s performance level exceeded target performance levels with a payout percentage of 118% . Accordingly, an additional 9,014 shares of stock were issued to award recipients on February 1, 2014 (the “2011 Additional Shares”). For the 2010 three-year performance period, the Company’s performance level exceeded the target performance level with a payout percentage of 114% . Accordingly, an additional 6,996 shares of stock were issued to award recipients on February 2, 2013 (the “2010 Additional Shares”). The total fair value of time-vested and performance-based restricted stock and RSUs that vested during the year ended December 31, 2015 was $1.4 million . The tax benefits for tax deductions realized from such shares was $0.5 million . The total fair value of the shares of time-vested and performance-based restricted stock that vested during the year ended December 31, 2014 and the 2011 Additional Shares was $3.6 million . The tax benefits for tax deductions realized from such shares was $1.2 million . The total fair value of the shares of time-vested and performance-based restricted stock that vested during the year ended December 31, 2013 and the 2010 Additional Shares was $4.1 million . The tax benefits for tax deductions realized from such shares was $1.4 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. The total fair value of DSUs that vested during the years ended December 31, 2015 , 2014 and 2013 was $0.1 million , $0.2 million and $0.1 million , respectively. NOTE 10. LONG-TERM EQUITY-BASED COMPENSATION (Continued) Activity related to DSU awards for the year ended December 31, 2015 is presented below. Number of DSUs Weighted- average Grant-date Fair Value Per DSU 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 Vested Balance at December 31, 2015 7,000 $ 36.17

Income From Continuing Operatio

Income From Continuing Operations Per Unrestricted Share	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Income from Continuing Operations Per Unrestricted Share	NOTE 11. 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 years ended December 31, 2015 , 2014 and 2013 is presented below. 2015 2014 2013 DOLLARS IN MILLIONS Income from Continuing Operations $ 80.2 $ 112.6 $ 214.5 Less Income from Continuing Operations Attributed to Participating Awards 0.4 0.5 1.1 Income from Continuing Operations Attributed to Unrestricted Shares 79.8 112.1 213.4 Dilutive Effect on Income of Equity-based Compensation Equivalent Shares — — — Diluted Income from Continuing Operations Attributed to Unrestricted Shares $ 79.8 $ 112.1 $ 213.4 SHARES IN THOUSANDS Weighted-average Unrestricted Shares Outstanding 51,606.9 53,762.5 56,856.9 Equity-based Compensation Equivalent Shares 76.6 105.4 126.7 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 51,683.5 53,867.9 56,983.6 PER UNRESTRICTED SHARE IN WHOLE DOLLARS Basic Income from Continuing Operations Per Unrestricted Share $ 1.55 $ 2.08 $ 3.75 Diluted Income from Continuing Operations Per Unrestricted Share $ 1.55 $ 2.08 $ 3.74 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 years ended December 31, 2015 , 2014 and 2013 because the exercise prices for the options exceeded the average market price is presented below. SHARES IN THOUSANDS 2015 2014 2013 Equity-based Compensation Equivalent Shares 959.7 1,605.1 2,080.9 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 959.7 1,605.1 2,080.9

Other Comprehensive Income (Los

Other Comprehensive Income (Loss) And Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income	NOTE 12. OTHER COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED OTHER COMPREHENSIVE INCOME The components of Other Comprehensive Income (Loss) Before Income Taxes for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Other Comprehensive Income (Loss) Before Income Taxes: Unrealized Holding Gains (Losses) Arising During the Year Before Reclassification Adjustment $ (151.9 ) $ 259.7 $ (324.9 ) Reclassification Adjustment for Amounts Included in Net Income (25.4 ) (25.1 ) (37.9 ) Unrealized Holding Gains (Losses) (177.3 ) 234.6 (362.8 ) Foreign Currency Translation Adjustments Arising During the Year Before Reclassification Adjustment (1.4 ) (1.0 ) 0.2 Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustments (1.4 ) (1.0 ) 0.2 Net Unrecognized Postretirement Benefit Costs Arising During the Year 3.0 (106.4 ) 61.6 Amortization of Net Unrecognized Postretirement Benefit Costs 23.1 7.9 25.0 Net Unrecognized Postretirement Benefit Costs 26.1 (98.5 ) 86.6 Other Comprehensive Income (Loss) Before Income Taxes $ (152.6 ) $ 135.1 $ (276.0 ) The components of Other Comprehensive Income Tax Benefit (Expense) for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Income Tax Benefit (Expense): Unrealized Holding Gains and Losses Arising During the Year Before Reclassification Adjustment $ 53.9 $ (91.6 ) $ 115.9 Reclassification Adjustment for Amounts Included in Net Income 8.9 8.8 13.2 Unrealized Holding Gains and Losses 62.8 (82.8 ) 129.1 Foreign Currency Translation Adjustments Arising During the Year Before Reclassification Adjustment 0.5 0.4 (0.1 ) Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustment 0.5 0.4 (0.1 ) Net Unrecognized Postretirement Benefit Costs Arising During the Year (1.1 ) 37.5 (21.6 ) Amortization of Net Unrecognized Postretirement Benefit Costs (8.0 ) (2.8 ) (8.8 ) Net Unrecognized Postretirement Benefit Costs (9.1 ) 34.7 (30.4 ) Other Comprehensive Income Tax Benefit (Expense) $ 54.2 $ (47.7 ) $ 98.6 The components of AOCI at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Unrealized Gains on Investments, Net of Income Taxes: Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings $ 1.4 $ 2.8 Other Net Unrealized Gains on Investments 211.7 324.8 Foreign Currency Translation Adjustments, Net of Income Taxes (0.7 ) 0.2 Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes (88.1 ) (105.1 ) Accumulated Other Comprehensive Income $ 124.3 $ 222.7 NOTE 12. OTHER COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED OTHER COMPREHENSIVE INCOME (Continued) Components of AOCI were reclassified to the following lines of the Consolidated Statements of Income for the years ended December 31, 2015 , 2014 and 2013 : DOLLARS IN MILLIONS 2015 2014 2013 Reclassification of AOCI from Unrealized Gains and Losses on Available For Sale Securities to: Net Realized Gains on Sales of Investments $ 52.6 $ 37.9 $ 51.8 Net Impairment Losses Recognized in Earnings (27.2 ) (12.8 ) (13.9 ) Total Before Income Taxes 25.4 25.1 37.9 Income Tax Expense (8.9 ) (8.8 ) (13.2 ) Reclassification from AOCI, Net of Income Taxes 16.5 16.3 24.7 Reclassification of AOCI from Amortization of Net Unrecognized Postretirement Benefit Costs to: Interest and Other Expenses (23.1 ) (7.9 ) (25.0 ) Income Tax Benefit 8.0 2.8 8.8 Reclassification from AOCI, Net of Income Taxes (15.1 ) (5.1 ) (16.2 ) Total Reclassification from AOCI to Net Income $ 1.4 $ 11.2 $ 8.5

Income From Investments

Income From Investments	12 Months Ended
	Dec. 31, 2015
Investment Income, Net [Abstract]
Income From Investments	NOTE 13. INCOME FROM INVESTMENTS Net Investment Income for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Investment Income (Loss): Interest and Dividends on Fixed Maturities $ 236.2 $ 227.4 $ 235.5 Dividends on Equity Securities 32.4 59.9 38.0 Equity Method Limited Liability Investments 19.0 9.0 26.4 Fair Value Option Investments 0.2 (0.7 ) — Short-term Investments 0.4 0.6 0.1 Loans to Policyholders 21.1 20.5 19.8 Real Estate 11.9 12.1 20.8 Other — 0.1 — Total Investment Income 321.2 328.9 340.6 Investment Expenses: Real Estate 11.3 11.3 18.3 Other Investment Expenses 7.3 8.5 7.6 Total Investment Expenses 18.6 19.8 25.9 Net Investment Income $ 302.6 $ 309.1 $ 314.7 Other Receivables includes accrued investment income of $68.5 million and $65.5 million at December 31, 2015 and 2014 , respectively. NOTE 13. INCOME FROM INVESTMENTS (Continued) The components of Net Realized Gains on Sales of Investments for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Fixed Maturities: Gains on Sales $ 16.1 $ 7.0 $ 30.9 Losses on Sales (1.1 ) (0.2 ) (0.4 ) Equity Securities: Gains on Sales 39.2 33.1 21.8 Losses on Sales (1.6 ) (2.0 ) (0.5 ) Equity Method Limited Liability Investments: Gains on Sales — — 2.5 Real Estate: Gains on Sales — — 44.2 Losses on Sales (0.2 ) (0.2 ) — Other Investments: Gain on Sale of Subsidiary — 1.6 — Gains on Other Sales — — 0.1 Losses on Sales — (0.1 ) (0.1 ) Net Gains (Losses) on Trading Securities (0.3 ) (0.1 ) 0.6 Net Realized Gains on Sales of Investments $ 52.1 $ 39.1 $ 99.1 Gross Gains on Sales $ 55.3 $ 41.7 $ 99.5 Gross Losses on Sales (2.9 ) (2.5 ) (1.0 ) Net Gains (Losses) on Trading Securities (0.3 ) (0.1 ) 0.6 Net Realized Gains on Sales of Investments $ 52.1 $ 39.1 $ 99.1 The components of Net Impairment Losses Recognized in Earnings reported in the Consolidated Statements of Income for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Fixed Maturities $ (11.5 ) $ (5.7 ) $ (10.3 ) Equity Securities (15.7 ) (7.1 ) (3.6 ) Real Estate — (2.4 ) — Net Impairment Losses Recognized in Earnings $ (27.2 ) $ (15.2 ) $ (13.9 )

Insurance Expenses

Insurance Expenses	12 Months Ended
	Dec. 31, 2015
Insurance Expenses [Abstract]
Insurance Expenses	NOTE 14. INSURANCE EXPENSES Insurance Expenses for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Commissions $ 357.6 $ 324.6 $ 345.7 General Expenses 241.1 258.1 257.1 Taxes, Licenses and Fees 44.2 38.9 42.8 Total Costs Incurred 642.9 621.6 645.6 Policy Acquisition Costs: Deferred (270.6 ) (235.8 ) (253.4 ) Amortized 257.4 235.4 253.9 Net Policy Acquisition Costs Amortized (Deferred) (13.2 ) (0.4 ) 0.5 Life VIF, P & C VIF and P&C Customer Relationships Amortized 15.4 7.2 8.3 Insurance Expenses $ 645.1 $ 628.4 $ 654.4 Commissions for servicing policies are expensed as incurred, rather than deferred and amortized.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 15. INCOME TAXES Current and Deferred Income Tax Assets at December 31, 2015 and December 31, 2014 were: DOLLARS IN MILLIONS 2015 2014 Current Income Tax Assets $ 9.5 $ — Deferred Income Tax Assets 31.9 — Current and Deferred Income Tax Assets $ 41.4 $ — The components of Liabilities for Income Taxes at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Current Income Tax Liabilities $ — $ 7.8 Deferred Income Tax Liabilities — 21.5 Unrecognized Tax Benefits 3.8 7.2 Liabilities for Income Taxes $ 3.8 $ 36.5 NOTE 15. INCOME TAXES (Continued) The tax effects of temporary differences that give rise to significant portions of the Company’s Net Deferred Income Tax Assets and Deferred Income Tax Liabilities at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Deferred Income Tax Assets: Insurance Reserves $ 83.0 $ 78.7 Unearned Premium Reserves 41.7 35.5 Tax Capitalization of Policy Acquisition Costs 71.5 73.0 Payroll and Employee Benefit Accruals 72.0 74.0 Net Operating Loss Carryforwards 30.5 31.7 Other 15.7 9.8 Total Deferred Income Tax Assets 314.4 302.7 Deferred Income Tax Liabilities: Investments 109.8 160.1 Deferred Policy Acquisition Costs 110.7 106.1 Life VIF and P&C Customer Relationships 15.5 17.7 Goodwill and Other Intangible Assets Acquired 37.0 28.4 Depreciable Assets 7.3 7.4 Other 2.2 4.5 Total Deferred Income Tax Liabilities 282.5 324.2 Net Deferred Income Tax Assets (Liabilities) $ 31.9 $ (21.5 ) The expiration of federal net operating loss (“NOL”) carryforwards and their related deferred income tax assets at December 31, 2015 is presented below by year of expiration. DOLLARS IN MILLIONS NOL Carry-forwards Deferred Tax Asset Expiring in: 2020 $ 7.8 $ 2.7 2021 through 2025 30.5 10.7 2026 through 2030 29.9 10.5 2032 18.9 6.6 Total All Years $ 87.1 $ 30.5 Except for the NOL carryforward scheduled to expire in 2032, all of the NOL carryforwards were acquired in connection with business acquisitions made in prior years and are subject to annual usage limitations under the Internal Revenue Code. The Company expects to fully utilize these federal NOL carryforwards. The Company has not provided for Federal income taxes on $14.7 million of Mutual Savings Life’s income earned prior to 1984 which is not subject to income taxes under certain circumstances. Federal income taxes of $5.1 million would be paid on such income if it is distributed to shareholders in the future or if it does not continue to meet certain limitations. A reconciliation of the beginning and ending amount of Unrecognized Tax Benefits for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS 2015 2014 2013 Balance at Beginning of Year $ 7.2 $ 6.8 $ 6.4 Additions for Tax Positions of Current Period 0.2 0.1 0.1 Additions for Tax Positions of Prior Years — 0.3 0.3 Reduction for Expiration of Federal Statute of Limitations (3.6 ) — — Balance at End of Year $ 3.8 $ 7.2 $ 6.8 NOTE 15. INCOME TAXES (Continued) The statute of limitations related to Kemper and its eligible subsidiaries’ consolidated Federal income tax returns is closed for all tax years up to and including 2011. The expiration of the statute of limitations related to the various state income tax returns that Kemper and its subsidiaries file varies by state. In 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. In the fourth quarter of 2015, the Illinois Department of Revenue informed the Company that it intends to commence an examination of the Illinois Income Tax Returns for the years ended December 31, 2012 and 2013. The Company does not expect any material changes to the returns as originally filed. Unrecognized Tax Benefits at December 31, 2015 , 2014 and 2013 include $3.3 million , $3.4 million and $3.4 million , respectively, for tax positions 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 $0.5 million , $3.8 million and $3.4 million at December 31, 2015 , 2014 and 2013 , respectively. Tax expense includes a net interest benefit of $3.3 million , interest expense of $0.4 million and interest expense of $0.4 million and related to unrecognized tax benefits for the years ended December 31, 2015 , 2014 and 2013 , respectively. The components of Income Tax Expense from Continuing Operations for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Current Income Tax Expense $ (25.7 ) $ (41.7 ) $ (49.4 ) Deferred Income Tax Benefit (Expense) 2.2 (5.5 ) (50.1 ) (Increase) Decrease Unrecognized Tax Benefits 3.4 (0.4 ) (0.4 ) Income Tax Expense $ (20.1 ) $ (47.6 ) $ (99.9 ) Net income taxes paid were $44.4 million , $37.2 million and $42.4 million in 2015 , 2014 and 2013 , respectively. A reconciliation of the Statutory Federal Income Tax Expense and Rate to the Company’s Effective Income Tax Expense and Rate from Continuing Operations for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS 2015 2014 2013 Amount Rate Amount Rate Amount Rate Statutory Federal Income Tax Expense $ (35.1 ) 35.0 % $ (56.1 ) 35.0 % $ (110.0 ) 35.0 % Tax-exempt Income and Dividends Received Deduction 9.8 (9.7 ) 9.0 (5.6 ) 10.6 (3.4 ) Unrecognized Tax Benefit (Expense) 2.1 (2.1 ) (0.3 ) — (0.3 ) — Indemnification Recoveries 3.7 (3.6 ) — — — — State Income Taxes (0.6 ) 0.5 (0.6 ) 0.4 (0.2 ) 0.1 Other, Net — — 0.4 (0.1 ) — 0.1 Effective Income Tax Expense from Continuing Operations $ (20.1 ) 20.1 % $ (47.6 ) 29.7 % $ (99.9 ) 31.8 % NOTE 15. INCOME TAXES (Continued) Comprehensive Income Tax Expense included in the Consolidated Financial Statements for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Income Tax Expense: Continuing Operations $ (20.1 ) $ (47.6 ) $ (99.9 ) Discontinued Operations (3.1 ) (1.1 ) (1.7 ) Unrealized Depreciation (Appreciation) on Securities 62.8 (82.8 ) 129.1 Foreign Currency Translation Adjustments on Investments 0.5 0.4 (0.1 ) Tax Effects from Postretirement Benefit Plans (9.1 ) 34.7 (30.4 ) Tax Effects from Long-term Equity-based Compensation included in Paid-in Capital (1.0 ) (1.0 ) 0.2 Comprehensive Income Tax Benefit (Expense) $ 30.0 $ (97.4 ) $ (2.8 )

Pension Benefits

Pension Benefits	12 Months Ended
	Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Pension Benefits	NOTE 16. PENSION BENEFITS The Company sponsors a qualified defined benefit pension plan (the “Pension Plan”). The Pension Plan covers approximately 9,300 participants and beneficiaries, of which 2,000 are active employees. The Pension Plan is closed to new employees hired after January 1, 2006. The Pension Plan is generally non-contributory, but participation requires or required some employees to contribute 3% of pay, as defined, per year. Benefits for participants who are or were required to contribute to the Pension Plan are based on compensation during plan participation and the number of years of participation. Benefits for the vast majority of participants who are not required to contribute to the Pension Plan are based on years of service and final average pay, as defined. The Company funds the Pension Plan in accordance with the requirements of ERISA. Changes in Fair Value of Plan Assets and Changes in Projected Benefit Obligation for the Pension Plan for the years ended December 31, 2015 and 2014 is presented below. DOLLARS IN MILLIONS 2015 2014 Fair Value of Plan Assets at Beginning of Year $ 543.0 $ 524.5 Actual Return on Plan Assets (10.6 ) 41.7 Benefits Paid (24.9 ) (23.2 ) Fair Value of Plan Assets at End of Year 507.5 543.0 Projected Benefit Obligation at Beginning of Year 634.0 515.5 Service Cost 10.5 8.7 Interest Cost 25.7 24.8 Benefits Paid (24.9 ) (23.2 ) Plan Amendments — (0.6 ) Actuarial Losses (Gains) (47.5 ) 108.8 Projected Benefit Obligation at End of Year 597.8 634.0 Funded Status—Plan Assets in Excess (Deficit) of Projected Benefit Obligation $ (90.3 ) $ (91.0 ) Unamortized Amount Reported in AOCI at End of Year: Accumulated Actuarial Loss $ (152.2 ) $ (178.6 ) Prior Service Credit 0.4 0.5 Unamortized Amount Reported in AOCI at End of Year $ (151.8 ) $ (178.1 ) Accumulated Benefit Obligation at End of Year $ 573.9 $ 608.2 The measurement dates of the assets and liabilities at end of year presented in the preceding table under the headings, “ 2015 ” and “ 2014 ” were December 31, 2015 and December 31, 2014 , respectively. NOTE 16. PENSION BENEFITS (Continued) The weighted-average discount rate and rate of increase in future compensation levels used to estimate the components of the Projected Benefit Obligation for the Pension Plan at December 31, 2015 and 2014 were: 2015 2014 Discount Rate 4.47 % 4.10 % Rate of Increase in Future Compensation Levels 3.15 3.31 Weighted-average asset allocations for the Pension Plan at December 31, 2015 and 2014 by asset category were: ASSET CATEGORY 2015 2014 Cash and Short-term Investments 4 % 4 % Corporate Bonds and Notes 28 29 Common and Preferred Stocks 43 43 Exchange Traded Funds 9 12 Other Assets 16 12 Total 100 % 100 % The investment objective of the Pension Plan is to produce current income and long-term capital growth through a combination of equity and fixed income investments which, together with appropriate employer contributions and any required employee contributions, is adequate to provide for the payment of the benefit obligations of the Pension Plan. The assets of the Pension Plan may be invested in fixed income and equity investments or any other investment vehicle or financial instrument deemed appropriate. Fixed income investments may include cash and short-term instruments, U.S. Government securities, corporate bonds, mortgages and other fixed income investments. Equity investments may include various types of stock, such as large-cap, mid-cap and small-cap stocks, and may also include investments in investment companies, collective investment funds and Kemper common stock (subject to Section 407 and other requirements of ERISA). The Pension Plan has not invested in Kemper common stock. The trust investment committee for the Pension Plan, along with its third party fiduciary advisor, periodically reviews the performance of the Pension Plan’s investments and asset allocation. Several external investment managers, one of which is Fayez Sarofim & Co. (see Note 24 , “ Related Parties ,” to the Consolidated Financial Statements), manage the equity investments of the trust for the Pension Plan. Each manager is allowed to exercise investment discretion, subject to limitations, if any, established by the trust investment committee for the Pension Plan. All other investment decisions are made by the Company, subject to general guidelines as set by the trust investment committee for the Pension Plan. The Company determines its Expected Long Term Rate of Return on Plan Assets based primarily on the Company’s expectations of future returns, with consideration to historical returns, for the Pension Plan’s investments, based on target allocations of the Pension Plan’s investments. NOTE 16. PENSION BENEFITS (Continued) Fair value measurements for the Pension Plan’s assets at December 31, 2015 are summarized below. DOLLARS IN MILLIONS Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 19.2 $ — $ — $ 19.2 States and Political Subdivisions — 3.2 — 3.2 Corporate Bonds and Notes — 122.2 — 122.2 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 6.1 — 6.1 Common Stocks: Manufacturing 77.9 16.2 — 94.1 Other Industries 82.5 1.8 — 84.3 Other Equity Interests: Collective Investment Funds — 31.1 — 31.1 Exchange Traded Funds 47.2 — — 47.2 Limited Liability Companies and Limited Partnerships — — 78.2 78.2 Short-term Investments 20.4 — — 20.4 Receivables and Other 1.1 — 0.4 1.5 Total $ 248.3 $ 180.6 $ 78.6 $ 507.5 Additional information pertaining to the changes in the fair value of the Pension Plan’s assets classified as Level 3 for the year ended December 31, 2015 is presented below. DOLLARS IN MILLIONS Other Equity Interests Receivables and Other Total Balance at Beginning of Year $ 64.5 $ 0.4 $ 64.9 Return on Plan Assets Held (1.5 ) — (1.5 ) Purchases, Sales and Settlements, Net 15.2 — 15.2 Balance at End of Year $ 78.2 $ 0.4 $ 78.6 NOTE 16. PENSION BENEFITS (Continued) Fair value measurements for the Pension Plan’s assets at December 31, 2014 are summarized below. DOLLARS IN MILLIONS Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 18.4 $ — $ — $ 18.4 States and Political Subdivisions — 3.3 — 3.3 Corporate Bonds and Notes — 136.6 — 136.6 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 6.4 — 6.4 Common Stocks: Manufacturing 98.8 15.0 — 113.8 Other Industries 79.3 2.3 — 81.6 Other Equity Interests: Collective Investment Funds — 30.0 — 30.0 Exchange Traded Funds 65.5 — — 65.5 Limited Liability Companies and Limited Partnerships — — 64.5 64.5 Short-term Investments 21.5 — — 21.5 Receivables and Other 1.0 — 0.4 1.4 Total $ 284.5 $ 193.6 $ 64.9 $ 543.0 Additional information pertaining to the changes in the fair value of the Pension Plan’s assets classified as Level 3 for the year ended December 31, 2014 is presented below. DOLLARS IN MILLIONS Other Equity Interests Receivables and Other Total Balance at Beginning of Year $ 46.9 $ 0.5 $ 47.4 Return on Plan Assets Held 3.4 — 3.4 Purchases, Sales and Settlements, Net 14.2 (0.1 ) 14.1 Balance at End of Year $ 64.5 $ 0.4 $ 64.9 The components of Comprehensive Pension Expense (Income) for the Pension Plan for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Service Cost Earned During the Year $ 10.5 $ 8.7 $ 10.8 Interest Cost on Projected Benefit Obligation 25.7 24.8 22.4 Expected Return on Plan Assets (35.0 ) (34.9 ) (29.7 ) Amortization of Actuarial Loss 24.4 9.7 26.2 Pension Expense Recognized in Consolidated Statements of Income 25.6 8.3 29.7 Unrecognized Pension Loss (Gain) Arising During the Year (1.9 ) 102.0 (53.8 ) Prior Service Credit Arising During the Year — (0.6 ) — Amortization of Accumulated Unrecognized Pension Loss (24.4 ) (9.7 ) (26.2 ) Comprehensive Pension Expense (Income) $ (0.7 ) $ 100.0 $ (50.3 ) NOTE 16. PENSION BENEFITS (Continued) The Company estimates that Pension Expense for the Pension Plan for the year ended December 31, 2016 will include expense of $11.8 million resulting from the amortization of the related accumulated actuarial loss included in AOCI at December 31, 2015 . The weighted-average discount rate, rate of increase in future compensation levels and expected long-term rate of return on plan assets used to develop the components of Pension Expense for the Pension Plan for the years ended December 31, 2015 , 2014 and 2013 were: 2015 2014 2013 Discount Rate 4.10 % 4.90 % 4.05 % Rate of Increase in Future Compensation Levels 3.31 3.05 3.08 Expected Long Term Rate of Return on Plan Assets 6.75 7.00 7.00 On September 3, 2013, the Company made a voluntary cash contribution of $55.0 million to the Pension Plan. The Company did not contribute to the Pension Plan in 2015 or 2014 . The Company does not expect that it will be required to contribute to the Pension Plan in 2016 , but could make a voluntary contribution pursuant to the maximum funding limits under ERISA. The following benefit payments (net of participant contributions), which consider expected future service, as appropriate, are expected to be paid from the Pension Plan: DOLLARS IN MILLIONS Years Ending December 31, 2016 2017 2018 2019 2020 2021-2025 Estimated Pension Benefit Payments $ 26.3 $ 27.7 $ 29.1 $ 30.3 $ 31.5 $ 174.4 The Company also sponsors a non-qualified supplemental defined benefit pension plan (the “Supplemental Plan”). The unfunded liability related to the Supplemental Plan was $30.4 million and $31.0 million at December 31, 2015 and 2014 , respectively. Pension expense for the Supplemental Plan was $2.1 million , $1.8 million and $1.8 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. An actuarial gain of $1.5 million before taxes, an actuarial loss of $7.0 million before taxes and an actuarial gain of $1.5 million before taxes are included in Other Comprehensive Income (Loss) for the years ended December 31, 2015 , 2014 and 2013 , respectively. The Company also sponsors several defined contribution benefit plans covering most of its employees. The Company made contributions to those plans of $7.8 million , $7.3 million and $7.3 million in 2015 , 2014 and 2013 , respectively.

Postretirement Benefits Other T

Postretirement Benefits Other Than Pensions	12 Months Ended
	Dec. 31, 2015
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Postemployment Benefits Other Than Pensions	NOTE 17. POSTRETIREMENT BENEFITS OTHER THAN PENSIONS The Company sponsors an other than pension postretirement employee benefit plan (“OPEB”) that provides medical, dental and/or life insurance benefits to approximately 500 retired and 250 active employees (the “OPEB Plan”). The Company generally is self-insured for the benefits under the OPEB Plan. The medical plan generally provides for a limited number of years of medical insurance benefits at retirement based on the participant’s attained age at retirement and number of years of service until specified dates and generally requires participant contributions, with most contributions adjusted annually. Changes in Fair Value of Plan Assets and Changes in Accumulated Postretirement Benefit Obligation for the years ended December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Fair Value of Plan Assets at Beginning of Year $ — $ — Employer Contributions 3.4 3.4 Plan Participants’ Contributions 1.2 1.2 Benefits Paid (4.6 ) (4.6 ) Fair Value of Plan Assets at End of Year — — Accumulated Postretirement Benefit Obligation at Beginning of Year 31.1 35.1 Service Cost 0.2 0.2 Interest Cost 1.0 1.1 Plan Participants’ Contributions 1.2 1.2 Benefits Paid (4.6 ) (4.6 ) Medicare Part D Subsidy Received 0.3 0.1 Actuarial Loss (Gain) 0.4 (2.0 ) Accumulated Postretirement Benefit Obligation at End of Year 29.6 31.1 Funded Status—Accumulated Postretirement Benefit Obligation in Excess of Plan Assets $ (29.6 ) $ (31.1 ) Unamortized Actuarial Gain Reported in AOCI at End of Year $ 16.8 $ 18.6 The measurement dates of the assets and liabilities at end of year in the preceding table under the headings “ 2015 ” and “ 2014 ” were December 31, 2015 and December 31, 2014 , respectively. The weighted-average discount rate and rate of increase in future compensation levels used to develop the components of the Accumulated Postretirement Benefit Obligation at December 31, 2015 and 2014 were: 2015 2014 Discount Rate 3.70 % 3.40 % Rate of Increase in Future Compensation Levels 2.64 2.68 The assumed health care cost trend rate used in measuring the Accumulated Postretirement Benefit Obligation at December 31, 2015 was 7.0% for 2016, gradually declining to 5.0% in the year 2024 and remaining at that level thereafter for medical benefits and 11.0% for 2016, gradually declining to 5.0% in the year 2024 and remaining at that level thereafter for prescription drug benefits. The assumed health care cost trend rate used in measuring the Accumulated Postretirement Benefit Obligation at December 31, 2014 was 8.0% for 2015 , gradually declining to 5.0% in the year 2023 and remaining at that level thereafter for medical benefits and 7.5% for 2015 , gradually declining to 5.0% in the year 2023 and remaining at that level thereafter for prescription drug benefits. A one-percentage point increase in the assumed health care cost trend rate for each year would have increased the Accumulated Postretirement Benefit Obligation at December 31, 2015 by $1.5 million and 2015 OPEB expense by $0.1 million . A one-percentage point increase in the assumed health care cost trend rate for each year would have increased the Accumulated Postretirement Benefit Obligation at December 31, 2014 by $1.7 million and 2014 OPEB expense by $0.1 million . NOTE 17. POSTRETIREMENT BENEFITS OTHER THAN PENSIONS (Continued) The components of Comprehensive OPEB Income for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Service Cost Earned During the Year $ 0.2 $ 0.2 $ 0.2 Interest Cost on Accumulated Postretirement Benefit Obligation 1.0 1.1 1.2 Amortization of Actuarial Gain (1.4 ) (1.8 ) (1.2 ) OPEB Expense (Income) Recognized in Consolidated Statements of Income (0.2 ) (0.5 ) 0.2 Unrecognized OPEB Loss (Gain) Arising During the Year 0.4 (2.0 ) (6.2 ) Amortization of Accumulated Unrecognized OPEB Gain 1.4 1.8 1.2 Comprehensive OPEB Expense (Income) $ 1.6 $ (0.7 ) $ (4.8 ) The Company estimates that OPEB Expense for the year ended December 31, 2016 will include income of $1.3 million resulting from the amortization of the related accumulated actuarial gain included in AOCI at December 31, 2015 . The weighted-average discount rate and rate of increase in future compensation levels used to develop OPEB Expense for the years ended December 31, 2015 , 2014 and 2013 were: 2015 2014 2013 Discount Rate 3.40 % 4.00 % 3.15 % Rate of Increase in Future Compensation Levels 2.68 2.10 2.10 The Company expects to contribute $3.3 million , net of the expected Medicare Part D subsidy, to its OPEB Plan to fund benefit payments in 2016. The following benefit payments (net of participant contributions), which consider expected future service, as appropriate, are expected to be paid: DOLLARS IN MILLIONS Years Ending December 31, 2016 2017 2018 2019 2020 2021-2025 Estimated Benefit Payments: Excluding Medicare Part D Subsidy $ 3.6 $ 3.6 $ 3.5 $ 3.4 $ 3.2 $ 13.5 Expected Medicare Part D Subsidy (0.3 ) (0.3 ) (0.3 ) (0.3 ) (0.3 ) (1.5 ) Net Estimated Benefit Payments $ 3.3 $ 3.3 $ 3.2 $ 3.1 $ 2.9 $ 12.0

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Business Segments	NOTE 18. 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 standard and nonstandard risks, homeowners insurance, other personal insurance and commercial automobile insurance. These products are distributed primarily through independent agents and brokers. 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 and independent agents and brokers. The Company’s earned premiums are derived in the United States. The accounting policies of the segments are the same as those described in Note 2 , “ Summary of Accounting Policies and Accounting Changes ,” to the Consolidated Financial Statements. Capital expenditures for long-lived assets by operating segment are immaterial. It is the Company’s management practice to allocate certain corporate expenses, primarily compensation costs for corporate employees and related facility costs, included in Interest and Other Expenses in the Consolidated Statements of Income to its insurance operations. The amount of such allocated corporate expenses was $43.4 million , $42.1 million and $39.7 million for NOTE 18. BUSINESS SEGMENTS (Continued) the years ended December 31, 2015 , 2014 and 2013 , respectively. The Company does not allocate Net Realized Gains on Sales of Investments, Net Impairment Losses Recognized in Earnings, interest expense on debt or postretirement benefit plans, and actuarial gains and losses on its postretirement benefit plans to its operating segments. Segment Assets at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Property & Casualty Insurance $ 2,749.0 $ 2,486.1 Life & Health Insurance 4,733.9 4,810.6 Corporate and Other, Net 553.2 536.7 Total Assets $ 8,036.1 $ 7,833.4 Earned Premiums by product line for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Personal Automobile $ 1,027.7 $ 831.4 $ 959.1 Homeowners 286.3 312.4 326.2 Other Personal Property and Casualty Insurance 122.1 127.4 134.1 Commercial Automobile 54.5 54.8 52.3 Life 374.1 387.6 392.7 Accident and Health 144.9 148.6 161.4 Total Earned Premiums $ 2,009.6 $ 1,862.2 $ 2,025.8 Segment Revenues, including a reconciliation to Total Revenues, for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Segment Revenues: Property & Casualty Insurance: Earned Premiums $ 1,415.2 $ 1,249.5 $ 1,392.9 Net Investment Income 73.3 72.7 90.9 Other Income 0.6 0.5 0.5 Total Property & Casualty Insurance 1,489.1 1,322.7 1,484.3 Life & Health Insurance: Earned Premiums 594.4 612.7 632.9 Net Investment Income 214.2 218.7 209.9 Other Income 2.4 0.9 0.2 Total Life & Health Insurance 811.0 832.3 843.0 Total Segment Revenues 2,300.1 2,155.0 2,327.3 Net Realized Gains on the Sales of Investments 52.1 39.1 99.1 Net Impairment Losses Recognized in Earnings (27.2 ) (15.2 ) (13.9 ) Other 15.8 17.7 14.0 Total Revenues $ 2,340.8 $ 2,196.6 $ 2,426.5 NOTE 18. BUSINESS SEGMENTS (Continued) Segment Operating Profit, including a reconciliation to Income from Continuing Operations before Income Taxes, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Segment Operating Profit: Property & Casualty Insurance $ 23.7 $ 27.1 $ 139.6 Life & Health Insurance 109.7 141.9 136.9 Total Segment Operating Profit 133.4 169.0 276.5 Corporate and Other Operating Loss (48.9 ) (32.7 ) (47.3 ) Total Operating Profit 84.5 136.3 229.2 Net Realized Gains on Sales of Investments 52.1 39.1 99.1 Net Impairment Losses Recognized in Earnings (27.2 ) (15.2 ) (13.9 ) Loss from Early Extinguishment of Debt (9.1 ) — — Income from Continuing Operations before Income Taxes $ 100.3 $ 160.2 $ 314.4 Segment Net Operating Income, including a reconciliation to Income from Continuing Operations, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Segment Net Operating Income: Property & Casualty Insurance $ 26.7 $ 24.9 $ 100.6 Life & Health Insurance 71.7 91.8 89.3 Total Segment Net Operating Income 98.4 116.7 189.9 Corporate and Other Net Operating Loss (28.5 ) (19.6 ) (30.7 ) Consolidated Net Operating Income 69.9 97.1 159.2 Net Income (Loss) From: Net Realized Gains on Sales of Investments 33.9 25.4 64.4 Net Impairment Losses Recognized in Earnings (17.7 ) (9.9 ) (9.1 ) Loss from Early Extinguishment of Debt (5.9 ) — — Income from Continuing Operations $ 80.2 $ 112.6 $ 214.5 Amortization of Deferred Policy Acquisition Costs by Operating Segment for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 213.1 $ 187.5 $ 207.2 Life & Health Insurance 44.3 47.9 46.7 Total Amortization $ 257.4 $ 235.4 $ 253.9

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	NOTE 19. DISCONTINUED OPERATIONS The Company accounts for its former Unitrin Business Insurance operations as discontinued operations. Summary financial information included in Income from Discontinued Operations for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS 2015 2014 2013 Income from Discontinued Operations before Income Taxes: Change in Estimate of Retained Liabilities Arising from Discontinued Operations 8.6 3.0 4.9 Income Tax Expense (3.1 ) (1.1 ) (1.7 ) Income from Discontinued Operations $ 5.5 $ 1.9 $ 3.2 Income from Discontinued Operations Per Unrestricted Share: Basic $ 0.10 $ 0.04 $ 0.06 Diluted $ 0.10 $ 0.04 $ 0.06 In 2008, the Company sold its Unitrin Business Insurance operations. The Company retained Property and Casualty Insurance Reserves for unpaid insured losses that occurred prior to the date of the sale. Property and Casualty Insurance Reserves reported in the Company’s Consolidated Balance Sheets include $50.3 million and $69.3 million at December 31, 2015 and 2014 , respectively, for the retained liabilities. In accordance with GAAP, changes in the Company’s estimate of such retained liabilities after the sale are reported as a separate component of the results of discontinued operations. See Note 6 , “ Property and Casualty Insurance Reserves ,” to the Consolidated Financial Statements.

Catastrophe Reinsurance

Catastrophe Reinsurance	12 Months Ended
	Dec. 31, 2015
Reinsurance Disclosures [Abstract]
Catastrophe Reinsurance	NOTE 20. CATASTROPHE REINSURANCE Catastrophes and natural disasters are inherent risks of the property and casualty insurance business. These catastrophic events and natural disasters include, without limitation, hurricanes, tornadoes, earthquakes, hailstorms, wildfires, high winds and winter storms. Such events result in insured losses that are, and will continue to be, a material factor in the results of operations and financial position of the Company’s property and casualty insurance companies. Further, because the level of these insured losses occurring in any one year cannot be accurately predicted, these losses may contribute to material year-to-year fluctuations in the results of operations and financial position of these companies. Specific types of catastrophic events are more likely to occur at certain times within the year than others. This factor adds an element of seasonality to property and casualty insurance claims. The Company has adopted the industry-wide catastrophe classifications of storms and other events promulgated by ISO to track and report losses related to catastrophes. ISO classifies a disaster as a catastrophe when the event causes $25.0 million or more in direct insured losses to property and affects a significant number of policyholders and insurers. ISO-classified catastrophes are assigned a unique serial number recognized throughout the insurance industry. The discussions that follow utilize ISO’s definition of catastrophes. The Company manages its exposure to catastrophes and other natural disasters through a combination of geographical diversification, restrictions on the amount and location of new business production in certain regions, and reinsurance. To limit its exposures to catastrophic events, the Company maintains various catastrophe reinsurance programs for its property and casualty insurance businesses. NOTE 20. CATASTROPHE REINSURANCE (Continued) Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2015 to December 31, 2015 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Property & Casualty Insurance Segment: Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 150.0 95.0 2nd Layer of Coverage 150.0 350.0 95.0 Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2014 to December 31, 2014 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 100.0 95.0 2nd Layer of Coverage 100.0 200.0 95.0 3rd Layer of Coverage 200.0 400.0 95.0 Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2013 to December 31, 2013 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Property & Casualty Insurance Segment: Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 100.0 65.0 2nd Layer of Coverage 100.0 200.0 95.0 3rd Layer of Coverage 200.0 350.0 90.0 4th Layer of Coverage 350.0 450.0 50.0 The catastrophe reinsurance program for the Property & Casualty Insurance segment in 2013 also included reinsurance coverage, under a policy that expired on June 1, 2013, for catastrophe losses in North Carolina at retentions lower than those presented in the preceding table. In the event that the Property & Casualty Insurance segment’s incurred catastrophe losses and LAE covered by any of its catastrophe reinsurance programs presented in the three preceding tables exceed the retention for that particular layer, each of the programs required one reinstatement of such coverage. In such an instance, the Property & Casualty Insurance segment is required to pay a reinstatement premium to the reinsurers to reinstate the full amount of reinsurance available under such layer. The Property & Casualty Insurance segment’s catastrophe reinsurance in 2015 , 2014 and 2013 also included reinsurance coverage from the FHCF for hurricane losses in Florida at retentions lower than those described above. The Life & Health Insurance also purchases reinsurance from the FHCF for hurricane losses in Florida. Except for the coverage provided by the FHCF, the Life & Health Insurance segment has not carried any other catastrophe reinsurance since 2012, primarily due to actions taken by the Life & Health Insurance segment to reduce its exposures to catastrophes. NOTE 20. CATASTROPHE REINSURANCE (Continued) Reinsurance premiums for the Company’s primary catastrophe reinsurance programs, the NC Program and the FHCF Program reduced earned premiums for the years ended December 31, 2015 , 2014 and 2013 by the following: DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 12.8 $ 17.6 $ 23.6 Life & Health Insurance 0.1 0.1 — Total Ceded Catastrophe Reinsurance Premiums $ 12.9 $ 17.7 $ 23.6 Catastrophe losses and LAE (including reserve development), net of reinsurance recoveries, for the years ended December 31, 2015 , 2014 and 2013 by business segment are presented below. DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 56.6 $ 80.7 $ 34.6 Life & Health Insurance 3.9 3.1 1.6 Total Catastrophe Losses and LAE $ 60.5 $ 83.8 $ 36.2 Total catastrophe loss and LAE reserves, net of reinsurance recoverables, developed favorably by $7.8 million , $14.7 million and $14.5 million in 2015 , 2014 and 2013 , respectively. The Property & Casualty Insurance segment reported favorable catastrophe reserve development of $7.9 million , $15.8 million and $12.5 million in 2015 , 2014 and 2013 , respectively. The Life & Health Insurance segment reported adverse catastrophe reserve development of $0.1 million in 2015 , adverse catastrophe reserve development of $1.1 million in 2014 and favorable catastrophe reserve development of $2.0 million in 2013 . The process of estimating and establishing reserves for catastrophe losses is inherently uncertain and the actual ultimate cost of a claim, net of actual reinsurance recoveries, may vary materially from the estimated amount reserved. The Company’s estimates of direct catastrophe losses are generally based on inspections by claims adjusters and historical loss development experience for areas that have not been inspected or for claims that have not yet been reported. The Company’s estimates of direct catastrophe losses are based on the coverages provided by its insurance policies. The Company’s homeowners and dwelling insurance policies do not provide coverage for losses caused by floods, but generally provide coverage for physical damage caused by wind or wind-driven rain. Accordingly, the Company’s estimates of direct losses for homeowners and dwelling insurance do not include losses caused by flood. Depending on the policy, automobile insurance may provide coverage for losses caused by flood. Estimates of the number and severity of claims ultimately reported are influenced by many variables, including, but not limited to, repair or reconstruction costs and determination of cause of loss that are difficult to quantify and will influence the final amount of claim settlements. All these factors, coupled with the impact of the availability of labor and material on costs, require significant judgment in the reserve setting process. A change in any one or more of these factors is likely to result in an ultimate net claim cost different from the estimated reserve. The Company’s estimates of indirect losses from wind pools and joint underwriting associations are based on a variety of factors, including, but not limited to, actual or estimated assessments provided by or received from such entities, insurance industry estimates of losses, and estimates of the Company’s market share in the assessable states. Actual assessments may differ materially from these estimated amounts.

Other Reinsurance

Other Reinsurance	12 Months Ended
	Dec. 31, 2015
Reinsurance Disclosures [Abstract]
Other Reinsurance	NOTE 21. OTHER REINSURANCE In addition to the reinsurance programs described in Note 20 , “ Catastrophe Reinsurance ,” to the Consolidated Financial Statements, Kemper’s insurance subsidiaries utilize other reinsurance arrangements to limit their maximum loss, provide greater diversification of risk and to minimize exposures on larger risks. The ceding of insurance does not discharge the primary liability of the original insurer. Accordingly, insurance reserve liabilities are reported gross of any estimated recovery from reinsurers in the Consolidated Balance Sheets. Amounts recoverable from reinsurers are estimated in a manner consistent with the insurance reserve liability and are included in Other Receivables in the Consolidated Balance Sheets. Earned Premiums ceded on long-duration and short-duration policies were $20.6 million , $26.0 million and $33.9 million for the years ended December 31, 2015 , 2014 and 2013 , respectively, of which $12.9 million , $17.7 million and $23.6 million , respectively, was related to catastrophe reinsurance. See Note 20 , “ Catastrophe Reinsurance ,” to the Consolidated Financial Statements for additional information regarding the Company’s catastrophe reinsurance programs. Certain insurance subsidiaries assume business from other insurance companies and involuntary pools. Earned Premiums assumed on long-duration and short-duration policies were $60.0 million , $57.1 million and $52.7 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Trinity and Capitol County Mutual Fire Insurance Company (“Capitol”) are parties to a quota share reinsurance agreement whereby Trinity assumes 100% of the business written by Capitol, subject to a cap, for ceded losses for dwelling coverage. Earned Premiums assumed by Trinity from Capitol were $21.8 million , $21.9 million and $22.4 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Capitol is a mutual insurance company and, accordingly, is owned by its policyholders. Trinity and Old Reliable Casualty Company (“ORCC”), a subsidiary of Capitol, are parties to a quota share reinsurance agreement whereby Trinity assumes 100% of the business written by ORCC, subject to a cap for ceded losses for dwelling coverage. Earned Premiums assumed by Trinity from ORCC were $6.5 million , $6.7 million and $7.2 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. Five employees of the Company serve as directors of Capitol’s five member board of directors. Nine employees of the Company also serve as directors of ORCC’s nine member board of directors. Kemper’s subsidiary, United Insurance, provides claims and administrative services to Capitol and ORCC. In addition, agents appointed by Kemper’s subsidiary, The Reliable Life Insurance Company, and who are employed by United Insurance, are also appointed by Capitol and ORCC to sell property insurance products for the Company’s Life & Health Insurance segment. The Company also provides certain investment services to Capitol and ORCC.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures	NOTE 22. 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 Consolidated Balance Sheet at December 31, 2015 is summarized below. DOLLARS IN MILLIONS Fair Value Measurements Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 124.9 $ 195.7 $ — $ 320.6 States and Political Subdivisions — 1,622.6 — 1,622.6 Corporate Securities: Bonds and Notes — 2,376.5 436.3 2,812.8 Redeemable Preferred Stocks — — 3.8 3.8 Collateralized Loan Obligations — — 87.3 87.3 Other Mortgage- and Asset-backed — 1.4 3.8 5.2 Total Investments in Fixed Maturities 124.9 4,196.2 531.2 4,852.3 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 79.8 5.1 84.9 Other Industries — 6.2 12.8 19.0 Common Stocks: Finance, Insurance and Real Estate 16.6 6.6 — 23.2 Other Industries 0.6 0.8 12.1 13.5 Other Equity Interests: Exchange Traded Funds 177.1 — — 177.1 Limited Liability Companies and Limited Partnerships — — 205.5 205.5 Total Investments in Equity Securities 194.3 93.4 235.5 523.2 Fair Value Option Investments: Limited Liability Companies and Limited Partnerships Hedge Funds — — 164.5 164.5 Other Investments: Trading Securities 4.7 — — 4.7 Total $ 323.9 $ 4,289.6 $ 931.2 $ 5,544.7 At December 31, 2015 , the Company had unfunded commitments to invest an additional $107.6 million in certain limited liability investment companies and limited partnerships that will be included in Other Equity Interests when funded. NOTE 22. FAIR VALUE MEASUREMENTS (Continued) The valuation of assets measured at fair value in the Company’s Consolidated Balance Sheet at December 31, 2014 is summarized below. DOLLARS IN MILLIONS Fair Value Measurements Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) 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 Partnerships 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 either of 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 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 NOTE 22. FAIR VALUE MEASUREMENTS (Continued) 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 or 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 December 31, 2015 . DOLLARS IN MILLIONS Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted Average Yield Investment-grade Market Yield $ 98.7 2.6 % - 6.9 % 4.4 % Non-investment-grade: Senior Debt Market Yield 114.2 5.9 - 15.3 10.4 Junior Debt Market Yield 216.3 8.2 - 26.2 13.6 Collateralized Loan Obligations Market Yield 87.3 3.1 - 10.8 6.1 Other Various 14.7 Total Fixed Maturity Investments in Corporate Securities $ 531.2 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 Various 21.6 Total Fixed Maturity Investments in Corporate Securities $ 435.6 NOTE 22. FAIR VALUE MEASUREMENTS (Continued) 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, 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 year ended December 31, 2015 is presented below. DOLLARS IN MILLIONS Fixed Maturities Equity Securities Corporate Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred Other Equity Interests Fair Value Option Total Balance at Beginning of Year $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 Total Gains (Losses): Included in Consolidated Statements of Income (9.4 ) (1.6 ) 0.6 — (2.6 ) (5.1 ) 0.2 (17.9 ) Included in Other Comprehensive Income (7.4 ) (0.7 ) (2.2 ) (0.1 ) 1.4 0.3 — (8.7 ) Purchases 241.5 — 39.5 1.3 8.1 60.0 111.0 461.4 Settlements (65.5 ) (0.6 ) (7.5 ) (0.1 ) (0.7 ) (40.0 ) — (114.4 ) Sales (73.6 ) — (7.5 ) (1.2 ) (5.0 ) — — (87.3 ) Transfers into Level 3 — — — — — 4.1 — 4.1 Transfers out of Level 3 (10.0 ) — — — (9.9 ) — — (19.9 ) Balance at End of Year $ 436.2 $ 3.8 $ 87.3 $ 3.8 $ 30.1 $ 205.5 $ 164.5 $ 931.2 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 year ended December 31, 2015 . All of the $4.1 million transfers into Level 3 for the year ended December 31, 2015 , relate to an investment that changed from an Equity Method Limited Liability investment to Other Equity Interest at Fair Value. All other transfers out of Level 3 for the year ended December 31, 2015 were due to changes in the availability of market observable inputs. NOTE 22. 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 year ended December 31, 2014 is presented below. DOLLARS IN MILLIONS Fixed Maturities Equity Securities Total Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- Preferred and Common Stocks Other Equity Interests Fair Value Option Balance at Beginning of Year $ 364.1 $ 7.4 $ 44.7 $ 4.5 $ 32.1 $ 173.9 $ — $ 626.7 Total Gains (Losses): Included in Consolidated Statement of Income (3.4 ) — 0.2 0.1 1.1 2.7 (0.7 ) — Included in Other Comprehensive Income 5.1 (0.1 ) (1.0 ) 0.1 0.5 2.2 — 6.8 Purchases 201.4 — 26.1 — 8.9 53.0 58.0 347.4 Settlements (126.4 ) (0.6 ) — (0.8 ) (4.5 ) (39.8 ) — (172.1 ) Sales (79.0 ) — (5.6 ) — (2.2 ) (5.8 ) (4.0 ) (96.6 ) Transfers into Level 3 — — — — 3.6 — — 3.6 Transfers out of Level 3 (1.2 ) — — — (0.7 ) — — (1.9 ) Balance at End of Year $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 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 year ended December 31, 2014 . The transfers into Level 3 and out of Level 3 for the year ended December 31, 2014 were due to changes in the availability of market observable inputs. 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 Level 1 or Level 2 measurements.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Contingencies	NOTE 23. 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 consolidated financial statements. Over the last several years, certain state insurance regulators, legislators, treasurers/controllers, and their respective agents have aggressively 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 regulator-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 and related litigation. One type of initiative involves legislation (the “DMF Statutes”). DMF Statutes have been enacted in nine 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” or “DMF”). 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 DMF comparisons for policies issued and delivered in each of those states after the DMF Statute’s effective date. Six additional states have enacted DMF Statutes that require comparisons, but only with respect to policies issued on or after their respective effective dates, without regard to prior DMF use. With respect to those DMF Statutes that apply retroactively and would likely have an adverse effect on the Company’s operations and financial NOTE 23. CONTINGENCIES (Continued) position, the Life Companies 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 an 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 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. The Kentucky Department of Insurance sought review of this ruling by the Supreme Court of Kentucky, which granted discretionary review in August 2015. In February 2016, the Department of Insurance requested that its appeal be dismissed and this request was granted, thus concluding the litigation. Consequently, the Kentucky DMF Statute is deemed to apply to policies issued on or after January 1, 2013. • In July 2013, certain of the Life Companies filed an 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 (the “MIA”) 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 MIA’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 that statute while they pursue an appeal. The Life Companies’ appeal was denied by the Maryland Court of Special Appeals in October 2015 and the Life Companies have requested review by Maryland’s highest court, the Court of Appeals. Unclaimed property compliance audits and related 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 (the “Audit Firm”) retained by the treasurers/controllers of more than thirty states 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 DMF and to ascertain whether any of the insureds under such policies may be deceased; as described below, the Life Companies have filed a counterclaim in this case. In December 2013, the CA Controller filed a motion for preliminary injunction seeking the same injunctive relief; 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 trial court granted a motion by the CA Controller to stay the litigation against the Life Companies pending a decision in the ANICO Appeal. 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; discovery activity has resumed and the matter is set for trial in early 2017. 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 (the “IL Treasurer”) lacks the authority to compel those Life Companies to produce all in-force policy records to the Audit Firm, which is also a named defendant. In this litigation, the Life Companies further assert 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 the Treasurers’ Audit and in response to a demand by the IL Treasurer that the Life Companies produce all in-force policy records. Examinations by insurance regulators and related litigation. 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 NOTE 23. CONTINGENCIES (Continued) a single-state examination by the Illinois Department of Insurance (the “IDOI”). 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 IDOI, as 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 by the IDOI prompted the litigation in Illinois and other states described below. In September 2013, certain of the Life Companies filed declaratory judgment actions against 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 DMF to ascertain whether insureds are deceased. These complaints also asked 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 DMF, 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 action in California was filed as a cross-complaint to the CA Controller’s complaint and joined the California Insurance Commissioner and the Audit Firm as defendants. In December 2015, the Life Companies voluntarily dismissed the litigation against the IDOI after that department agreed to withdraw the request for records of all in-force policies and advised the Life Companies that it intended to proceed with a single-state market conduct exam without use of a DMF. At least one or more of the states remaining in the Multi-State Exam are expected to continue with the pending Multi-State Exam The actions against the insurance regulators in the states of Florida and Pennsylvania were stayed by agreement of the parties pending resolution of the action with the IDOI and may resume in 2016. Pending resolution of the litigation arising from the Multi-State Exam, 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 eliminating the effect of 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 effectively alter 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 the Life Companies 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, interpret existing laws or take other action to require the use of a DMF 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 DMF; • 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 or other economic effect 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	12 Months Ended
	Dec. 31, 2015
Related Party Transactions [Abstract]
Related Parties	NOTE 24. 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. Trinity had $85.8 million and $154.7 million in assets managed by FS&C at December 31, 2014 and 2013 , respectively. In 2014, Trinity began reducing the amount of assets managed by FS&C. Trinity completed the disposal of all the assets managed by FS&C in 2015 . Investment Expenses incurred in connection with such agreement were $0.1 million , $0.3 million and $0.4 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. FS&C also provides investment management services with respect to certain funds of the Company’s Pension Plan. The Company’s Pension Plan had $137.2 million , $159.2 million and $148.6 million in assets managed by FS&C at December 31, 2015 , 2014 and 2013 , respectively, under an agreement with FS&C whereby FS&C provides investment management services. Investment Expenses incurred in connection with such agreement were $0.4 million , $0.4 million and $0.3 million for the years ended December 31, 2015 , 2014 and 2013 , respectively. With respect to the Company’s defined contribution plans, until November 4, 2014, one of the alternative investment choices afforded to participating employees was the Dreyfus Appreciation Fund, an open-end, diversified managed investment fund. FS&C provides investment management services to the Dreyfus Appreciation Fund as a sub-investment advisor. The Company does not compensate FS&C for services provided to the Dreyfus Appreciation Fund. Participants in the Company’s defined contribution plans had allocated $22.8 million for investment in the Dreyfus Appreciation Fund at December 31, 2013 , representing 6% of the total amount invested in the Company’s defined contribution plans at such dates. The Company believes that the transactions described above have been provided on terms no less favorable to the Company than could have been negotiated with non-affiliated third parties. As described in Note 21 , “ Other Reinsurance ,” to the Consolidated Financial Statements, the Company also has certain relationships with Capitol, a mutual insurance company which is owned by its policyholders, and its subsidiary, ORCC.

Quarterly Financial Information

Quarterly Financial Information	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Data [Abstract]
Quarterly Financial Information	NOTE 25. QUARTERLY FINANCIAL INFORMATION (Unaudited) Three Months Ended (Unaudited) Year Ended DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS Mar 31, Jun 30, Sep 30, Dec 31, Dec 31, Revenues: Earned Premiums $ 431.3 $ 500.1 $ 536.7 $ 541.5 $ 2,009.6 Net Investment Income 70.6 76.7 75.9 79.4 302.6 Other Income 0.9 0.6 0.8 1.4 3.7 Net Realized Gains on Sales of Investments 3.4 34.0 5.3 9.4 52.1 Other-than-temporary Impairment Losses: Total Other-than-temporary Impairment Losses (7.0 ) (2.2 ) (3.3 ) (14.9 ) (27.4 ) Portion of Losses Recognized in Other Comprehensive Income — — — 0.2 0.2 Net Impairment Losses Recognized in Earnings (7.0 ) (2.2 ) (3.3 ) (14.7 ) (27.2 ) Total Revenues 499.2 609.2 615.4 617.0 2,340.8 Expenses: Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses 297.7 375.1 378.8 416.0 1,467.6 Insurance Expenses 144.9 162.1 161.1 177.0 645.1 Write-off of Long-lived Asset — 11.1 — — 11.1 Loss from Early Extinguishment of Debt 9.1 — — — 9.1 Interest and Other Expenses 29.7 26.6 25.7 25.6 107.6 Total Expenses 481.4 574.9 565.6 618.6 2,240.5 Income (Loss) from Continuing Operations before Income Taxes 17.8 34.3 49.8 (1.6 ) 100.3 Income Tax Benefit (Expense) (4.3 ) (6.9 ) (11.8 ) 2.9 (20.1 ) Income from Continuing Operations 13.5 27.4 38.0 1.3 80.2 Income (Loss) from Discontinued Operations — 2.3 (0.1 ) 3.3 5.5 Net Income $ 13.5 $ 29.7 $ 37.9 $ 4.6 $ 85.7 Income from Continuing Operations Per Unrestricted Share: Basic $ 0.26 $ 0.53 $ 0.73 $ 0.03 $ 1.55 Diluted $ 0.26 $ 0.53 $ 0.73 $ 0.03 $ 1.55 Net Income Per Unrestricted Share: Basic $ 0.26 $ 0.57 $ 0.73 $ 0.09 $ 1.65 Diluted $ 0.26 $ 0.57 $ 0.73 $ 0.09 $ 1.65 Dividends Paid to Shareholders Per Share $ 0.24 $ 0.24 $ 0.24 $ 0.24 $ 0.96 The sum of quarterly per share amounts does not equal per share amounts for the year due to differences in weighted-average shares and/or equivalent shares outstanding for each of the periods presented. NOTE 25. QUARTERLY FINANCIAL INFORMATION (Unaudited) (Continued) Three Months Ended (Unaudited) Year Ended DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS Mar 31, Jun 30, Sep 30, Dec 31, Dec 31, Revenues: Earned Premiums $ 477.6 $ 470.3 $ 462.8 $ 451.5 $ 1,862.2 Net Investment Income 71.1 72.6 72.3 93.1 309.1 Other Income 0.1 0.2 0.5 0.6 1.4 Net Realized Gains on Sales of Investments 6.6 3.5 8.0 21.0 39.1 Other-than-temporary Impairment Losses: Total Other-than-temporary Impairment Losses (0.8 ) (4.1 ) (3.8 ) (6.5 ) (15.2 ) Portion of Losses Recognized in Other Comprehensive Income — — — — — Net Impairment Losses Recognized in Earnings (0.8 ) (4.1 ) (3.8 ) (6.5 ) (15.2 ) Total Revenues 554.6 542.5 539.8 559.7 2,196.6 Expenses: Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses 327.9 347.5 300.5 285.8 1,261.7 Insurance Expenses 152.1 161.3 158.6 156.4 628.4 Write-off Long-lived Asset — — 54.6 — 54.6 Interest and Other Expenses 22.7 22.5 22.1 24.4 91.7 Total Expenses 502.7 531.3 535.8 466.6 2,036.4 Income from Continuing Operations before Income Taxes 51.9 11.2 4.0 93.1 160.2 Income Tax Benefit (Expense) (16.7 ) (1.9 ) 0.8 (29.8 ) (47.6 ) Income from Continuing Operations 35.2 9.3 4.8 63.3 112.6 Income (Loss) from Discontinued Operations (0.1 ) — (0.1 ) 2.1 1.9 Net Income $ 35.1 $ 9.3 $ 4.7 $ 65.4 $ 114.5 Income from Continuing Operations Per Unrestricted Share: Basic $ 0.63 $ 0.17 $ 0.09 $ 1.20 $ 2.08 Diluted $ 0.63 $ 0.17 $ 0.09 $ 1.20 $ 2.08 Net Income Per Unrestricted Share: Basic $ 0.63 $ 0.17 $ 0.09 $ 1.24 $ 2.12 Diluted $ 0.63 $ 0.17 $ 0.09 $ 1.24 $ 2.12 Dividends Paid to Shareholders Per Share $ 0.24 $ 0.24 $ 0.24 $ 0.24 $ 0.96 The sum of quarterly per share amounts does not equal per share amounts for the year due to differences in weighted-average shares and/or equivalent shares outstanding for each of the periods presented.

Schedule 1 - Investments Other

Schedule 1 - Investments Other Than Investments in Related Parties	12 Months Ended
	Dec. 31, 2015
Summary of Investments, Other than Investments in Related Parties [Abstract]
Schedule of Investments Other than Investments in Related Parties	SCHEDULE I KEMPER CORPORATION AND SUBSIDIARIES INVESTMENTS OTHER THAN INVESTMENTS IN RELATED PARTIES DECEMBER 31, 2015 (Dollars in Millions) Amortized Cost Fair Value Amount Carried in Balance Sheet Fixed Maturities: Bonds and Notes: United States Government and Government Agencies and Authorities $ 298.0 $ 320.6 $ 320.6 States and Political Subdivisions 1,513.7 1,622.6 1,622.6 Corporate Securities: Other Bonds and Notes 2,651.5 2,812.8 2,812.8 Redeemable Preferred Stocks 3.7 3.8 3.8 Collateralized Loan Obligations 90.0 87.3 87.3 Other Mortgage- and Asset-backed 3.8 5.2 5.2 Total Investments in Fixed Maturities 4,560.7 4,852.3 4,852.3 Equity Securities: Preferred Stocks 97.9 103.9 103.9 Common Stocks 28.3 36.7 36.7 Other Equity Interests 360.7 382.6 382.6 Total Investments in Equity Securities 486.9 523.2 523.2 Fair Value Option Investments 164.5 164.5 164.5 Equity Method Limited Liability Investments at Cost Plus Cumulative Undistributed Earnings 190.6 XXX.X 190.6 Loans, Real Estate and Other Investments 443.2 XXX.X 443.2 Short-term Investments 255.7 XXX.X 255.7 Total Investments $ 6,101.6 $ 6,429.5 See Accompanying Report of Independent Registered Public Accounting Firm.

Schedule 2 - Parent Company Fin

Schedule 2 - Parent Company Financial Statements	12 Months Ended
	Dec. 31, 2015
Parent Company Financial Statements [Abstract]
Parent Company Financial Statements	SCHEDULE II KEMPER CORPORATION PARENT COMPANY BALANCE SHEETS (Dollars in Millions) December 31, 2015 2014 ASSETS Investments in Subsidiaries $ 2,586.6 $ 2,677.5 Fixed Maturities at Fair Value (Amortized Cost: 2015 – $15.1; 2014 – $12.2) 15.1 12.2 Equity Securities at Fair Value (Cost: 2015 – $11.1; 2014 – $21.9) 10.9 21.8 Fair Value Option Investments 164.5 53.3 Short-term Investments 134.8 225.1 Cash 15.9 17.9 Other Receivables 5.7 6.9 Current and Deferred Income Taxes — 4.7 Other Assets 6.1 5.6 Total Assets $ 2,939.6 $ 3,025.0 LIABILITIES AND SHAREHOLDERS’ EQUITY Senior Notes Payable, 6.00% due 2017 (Fair Value: 2015 – $374.0; 2014 – $390.2) $ 359.1 $ 358.5 Senior Notes Payable, 6.00% due 2015 (Fair Value: 2014 – $260.2) — 249.5 Senior Notes Payable, 4.35% due 2025 (Fair Value: 2015 – $248.3) 247.4 — Subordinated Debentures due 2054 (Fair Value: 2015 – $159.0; 2014 – $154.0) 144.1 144.1 Liabilities for Income Taxes 33.3 14.5 Liabilities for Benefit Plans 154.8 160.2 Accrued Expenses and Other Liabilities 8.5 7.5 Total Liabilities 947.2 934.3 Shareholders’ Equity: Common Stock 5.1 5.2 Additional Paid-in Capital 654.0 660.1 Retained Earnings 1,209.0 1,202.7 Accumulated Other Comprehensive Income 124.3 222.7 Total Shareholders’ Equity 1,992.4 2,090.7 Total Liabilities and Shareholders’ Equity $ 2,939.6 $ 3,025.0 See Accompanying Report of Independent Registered Public Accounting Firm. KEMPER CORPORATION PARENT COMPANY STATEMENTS OF INCOME (Dollars in Millions) For The Years Ended December 31, 2015 2014 2013 Net Investment Income $ 1.7 $ 0.9 $ 0.2 Net Realized Gains (Losses) on Sales of Investments (0.1 ) (0.2 ) 0.6 Net Impairment Losses Recognized in Earnings (1.6 ) (1.7 ) — Total Revenues — (1.0 ) 0.8 Interest Expense 47.3 47.9 39.0 Loss from Early Extinguishment of Debt 9.1 — — Other Operating Expenses 17.6 2.7 21.6 Total Operating Expenses 74.0 50.6 60.6 Loss before Income Taxes and Equity in Net Income of Subsidiaries (74.0 ) (51.6 ) (59.8 ) Income Tax Benefit 26.5 18.9 20.8 Loss before Equity in Net Income of Subsidiaries (47.5 ) (32.7 ) (39.0 ) Equity in Net Income of Subsidiaries 133.2 147.2 256.7 Net Income $ 85.7 $ 114.5 $ 217.7 See Accompanying Report of Independent Registered Public Accounting Firm. KEMPER CORPORATION PARENT COMPANY STATEMENTS OF COMPREHENSIVE INCOME (Dollars in Millions) For The Years Ended December 31, 2015 2014 2013 Net Income $ 85.7 $ 114.5 $ 217.7 Other Comprehensive Income (Loss): Unrealized Holding Gains (Losses) Arising During the Year: Securities Held by Subsidiaries (150.4 ) 261.7 (324.9 ) Securities Held by Parent (1.5 ) (2.0 ) — Reclassification Adjustment for Amounts Included in Net Income: Securities Held by Subsidiaries (26.9 ) (26.8 ) (37.9 ) Securities Held by Parent 1.5 1.7 — Unrealized Holding Gains (Losses) (177.3 ) 234.6 (362.8 ) Unrecognized Postretirement Benefit Costs Arising During the Year 3.0 (106.4 ) 61.6 Amortization of Unrecognized Postretirement Benefit Costs 23.1 7.9 25.0 Net Unrecognized Postretirement Benefit Costs 26.1 (98.5 ) 86.6 Foreign Currency Translation Adjustments (1.4 ) (1.0 ) 0.2 Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustments (1.4 ) (1.0 ) 0.2 Other Comprehensive Income (Loss) before Income Taxes (152.6 ) 135.1 (276.0 ) Income Tax Benefit (Expense): Unrealized Holding Gains and Losses Arising During the Year: Securities Held by Subsidiaries 53.4 (92.3 ) 115.9 Securities Held by Parent 0.5 0.7 — Reclassification Adjustment for Amounts Included in Net Income: Securities Held by Subsidiaries 9.4 9.4 13.2 Securities Held by Parent (0.5 ) (0.6 ) — Unrealized Holding Gains and Losses 62.8 (82.8 ) 129.1 Unrecognized Postretirement Benefit Costs Arising During the Year (1.1 ) 37.5 (21.6 ) Amortization of Unrecognized Postretirement Benefit Costs (8.0 ) (2.8 ) (8.8 ) Net Unrecognized Postretirement Benefit Costs (9.1 ) 34.7 (30.4 ) Foreign Currency Translation Adjustments 0.5 0.4 (0.1 ) Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustments 0.5 0.4 (0.1 ) Income Tax Benefit (Expense) 54.2 (47.7 ) 98.6 Other Comprehensive Income (Loss) (98.4 ) 87.4 (177.4 ) Total Comprehensive Income (Loss) $ (12.7 ) $ 201.9 $ 40.3 See Accompanying Report of Independent Registered Public Accounting Firm. KEMPER CORPORATION PARENT COMPANY STATEMENTS OF CASH FLOWS (Dollars in Millions) For The Years Ended December 31, 2015 2014 2013 Operating Activities: Net Income $ 85.7 $ 114.5 $ 217.7 Adjustment Required to Reconcile Net Income to Net Cash Provided by Operations: Equity in Net Income of Subsidiaries (133.2 ) (147.2 ) (256.7 ) Cash Dividends from Subsidiaries 285.0 159.1 95.0 Cash Contribution to Defined Benefit Plan — — (55.0 ) Net Realized (Gains) Losses on Sales of Investments 0.1 0.2 (0.6 ) Net Impairment Losses Recognized in Earnings 1.6 1.7 — Loss from Early Extinguishment of Debt 9.1 — — Other, Net 41.6 10.5 67.3 Net Cash Provided by Operating Activities 289.9 138.8 67.7 Investing Activities: Capital Contributed to Subsidiary (105.0 ) — — Capital Distribution from Subsidiary — 1.1 50.5 Sales, Paydowns and Maturities of Fixed Maturities 11.8 11.5 — Purchases of Fixed Maturities (14.8 ) — — Sales of Equity Securities 9.4 15.1 — Sales of Fair Value Option Investments — 6.9 — Purchases of Fair Value Option Investments (111.0 ) (60.9 ) — Acquisition of Business (71.0 ) — — Change in Short-term Investments 90.3 (94.3 ) 52.7 Net Cash Provided (Used) by Investing Activities (190.3 ) (120.6 ) 103.2 Financing Activities: Net Proceeds from Issuance of Debt 247.3 144.0 — Repayments of Debt (258.8 ) — — Cash Dividends Paid (49.7 ) (51.8 ) (54.9 ) Common Stock Repurchases (45.0 ) (114.0 ) (100.4 ) Cash Exercise of Stock Options 3.9 0.5 1.7 Excess Tax Benefits on Share Based Awards 0.7 0.2 1.3 Net Cash Used by Financing Activities (101.6 ) (21.1 ) (152.3 ) Increase (Decrease) in Cash (2.0 ) (2.9 ) 18.6 Cash, Beginning of Year 17.9 20.8 2.2 Cash, End of Year $ 15.9 $ 17.9 $ 20.8 See Accompanying Report of Independent Registered Public Accounting Firm.

Schedule 3 - Supplementary Insu

Schedule 3 - Supplementary Insurance Information	12 Months Ended
	Dec. 31, 2015
Supplementary Insurance Information [Abstract]
Supplementary Insurance Information	KEMPER CORPORATION AND SUBSIDIARIES SUPPLEMENTARY INSURANCE INFORMATION (Dollars in Millions) Year Ended December 31, At December 31 Earned Premiums Premiums Written Other Income Net Investment Income Insurance Claims and Policy- holders’ Benefits Amortization Of Deferred Policy Acquisition Costs Other Insurance Expenses Deferred Policy Acquisition Costs Insurance Reserves Unearned Premiums 2015 Property & Casualty Insurance $ 1,415.2 $ 1,406.2 $ 0.6 $ 73.3 $ 1,086.2 $ 213.1 $ 155.0 $ 80.7 $ 800.5 $ 586.1 Life & Health Insurance (1) 594.4 N/A 2.4 214.2 381.3 44.3 275.7 235.7 3,346.2 27.0 Other — N/A 0.7 15.1 — — (42.9 ) — 57.1 — Total $ 2,009.6 N/A $ 3.7 $ 302.6 $ 1,467.5 $ 257.4 $ 387.8 $ 316.4 $ 4,203.8 $ 613.1 2014 Property & Casualty Insurance $ 1,249.5 $ 1,189.1 $ 0.5 $ 72.7 $ 887.3 $ 187.5 $ 166.2 $ 78.2 $ 651.1 $ 509.7 Life & Health Insurance (1) 612.7 N/A 0.9 218.7 374.4 47.9 268.1 225.1 3,278.2 27.2 Other — N/A — 17.7 — — (41.3 ) — 78.3 — Total $ 1,862.2 N/A $ 1.4 $ 309.1 $ 1,261.7 $ 235.4 $ 393.0 $ 303.3 $ 4,007.6 $ 536.9 2013 Property & Casualty Insurance $ 1,392.9 $ 1,342.2 $ 0.5 $ 90.9 $ 969.3 $ 207.2 $ 168.2 Life & Health Insurance (1) 632.9 N/A 0.2 209.9 387.9 46.7 271.5 Other — N/A 0.1 13.9 — — (39.2 ) Total $ 2,025.8 N/A $ 0.8 $ 314.7 $ 1,357.2 $ 253.9 $ 400.5 (1) The Company’s Life & Health Insurance employee-agents also market certain property and casualty insurance products under common management. Accordingly, the Company includes the results of these property and casualty insurance products in its Life & Health Insurance segment. See Accompanying Report of Independent Registered Public Accounting Firm.

Schedule 4 - Reinsurance Schedu

Schedule 4 - Reinsurance Schedule	12 Months Ended
	Dec. 31, 2015
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]
Reinsurance Schedule	SCHEDULE IV KEMPER CORPORATION REINSURANCE SCHEDULE FOR THE YEARS ENDED DECEMBER 31, 2015 , 2014 AND 2013 (Dollars in Millions) Gross Amount Ceded to Other Companies Assumed from Other Companies Net Amount Percentage of Amount Assumed to Net Year Ended December 31, 2015 Life Insurance in Force $ 20,209.8 $ 514.2 $ 205.7 $ 19,901.3 1.0 % Premiums: Life Insurance $ 374.1 $ 1.4 $ 1.4 $ 374.1 0.4 % Accident and Health Insurance 139.8 0.5 5.6 144.9 3.9 % Property and Liability Insurance 1,456.2 18.7 53.1 1,490.6 3.6 % Total Premiums $ 1,970.1 $ 20.6 $ 60.1 $ 2,009.6 3.0 % Year Ended December 31, 2014 Life Insurance in Force $ 20,565.9 $ 541.5 $ 217.8 $ 20,242.2 1.1 % Premiums: Life Insurance $ 387.5 $ 1.5 $ 1.6 $ 387.6 0.4 % Accident and Health Insurance 146.3 0.5 2.8 148.6 1.9 % Property and Liability Insurance 1,297.3 24.0 52.7 1,326.0 4.0 % Total Premiums $ 1,831.1 $ 26.0 $ 57.1 $ 1,862.2 3.1 % Year Ended December 31, 2013 Life Insurance in Force $ 21,006.0 $ 576.4 $ 229.5 $ 20,659.1 1.1 % Premiums: Life Insurance $ 392.4 $ 1.5 $ 1.8 $ 392.7 0.5 % Accident and Health Insurance 161.9 0.6 0.1 161.4 0.1 % Property and Liability Insurance 1,452.7 31.8 50.8 1,471.7 3.5 % Total Premiums $ 2,007.0 $ 33.9 $ 52.7 $ 2,025.8 2.6 % See Accompanying Report of Independent Registered Public Accounting Firm.

Summary Of Accounting Policie37

Summary Of Accounting Policies And Accounting Changes (Policies)	12 Months Ended
	Dec. 31, 2015
Accounting Policies [Abstract]
Investments	Investments Investments in Fixed Maturities include bonds, notes and redeemable preferred stocks. Investments in Fixed Maturities are classified as available for sale and reported at fair value. Net Investment Income, including amortization of purchased premiums and accretion of market discounts, on Investments in Fixed Maturities is recognized as interest over the period that it is earned using the effective yield method. Investments in Equity Securities include common and non-redeemable preferred stocks and other equity interests and are reported at fair value. Investments in common and non-redeemable preferred stocks with readily determinable fair values are classified as available for sale. Dividend income on investments in common and non-redeemable preferred stocks is recognized on the ex-dividend date. Other equity interests primarily consist of exchange traded funds and interests in limited liability companies and limited partnerships in which the Company’s interests are deemed minor. The Company’s share of distributed earnings from other equity interests is recognized as dividend income when received. Unrealized appreciation or depreciation, net of applicable deferred income taxes, on fixed maturities and equity securities classified as available for sale is reported in AOCI included in Shareholders’ Equity. NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) 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. Fair Value Option Investments include investments in certain hedge funds, which the Company has elected the fair value option (“FVO”) to account for such investments. Under the FVO method of accounting, the Company reports changes in the fair value of such investments in Net Investment Income in the Consolidated Statements of Income. The hedge funds are designed to preserve liquidity, while providing higher returns than Kemper would otherwise expect to earn had it invested in other short-term investments. Short-term Investments include fixed maturities that mature within one year from the date of purchase, U.S. Treasury bills, money market mutual funds and repurchase agreements. Short-term Investments are reported at cost, which approximates fair value. Other Investments primarily include loans to policyholders and real estate. Loans to policyholders are carried at unpaid principal balance. Real estate is carried at cost, net of accumulated depreciation. Real estate is depreciated over the estimated useful life of the asset using the straight-line method of depreciation. Real estate is evaluated for impairment when events or circumstances indicate the carrying value may not be recoverable. An impairment loss on real estate is recognized when the carrying value exceeds the sum of undiscounted projected future cash flows as well as the fair value, or, in the case of a property classified as held for sale, when the carrying value exceeds the fair value, net of costs to sell. Gains and losses on sales of investments are computed on the specific identification method and are reported in the Consolidated Statements of Income in the period in which the sales occur. 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. Losses are computed on the specific identification method and reported in the Consolidated Statements of Income in the period that the decline is determined to be other than temporary. The portion of an impairment of an investment in a fixed maturity attributed to a credit loss is reported in Net Impairment Losses Recognized in Earnings in the Consolidated Statements of Income, with the portion of the impairment that is not attributed to a credit loss reported in AOCI.
Fair Value Measurements	Fair Value Measurements The Company uses a hierarchal framework which prioritizes and ranks the market observability of inputs used in fair value measurements. Market price observability is affected by a number of factors, including the type of asset or liability and the characteristics specific to the asset or liability being measured. Assets and liabilities with readily available, active, quoted market prices or for which fair value can be measured from actively quoted prices generally are deemed to have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value. The Company classifies the inputs used to measure fair value into one of three levels as follows: • Level 1 — Quoted prices in an active market for identical assets or liabilities; • Level 2 — Observable inputs other than Level 1, quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, and model-derived prices whose inputs are observable or whose significant value drivers are observable; and • Level 3 — Unobservable inputs for the asset or liability being measured. Observable inputs are based on market data obtained from independent sources, while unobservable inputs are based on the Company’s market assumptions. Unobservable inputs require significant management judgment or estimation. In some cases, the inputs used to measure an asset or liability may fall into different levels of the fair value hierarchy. In those cases, the fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level of input that is significant to the entire measurement. Such determination requires significant management judgment. However, in accordance with GAAP, the Company is not permitted to use management judgment to adjust quoted market prices in an active market.
Deferred Policy Acquisition Costs	Deferred Policy Acquisition Costs Costs directly associated with the successful acquisition of business, principally commissions and certain premium taxes and policy issuance costs, are deferred. Costs deferred on property and casualty insurance contracts and short duration health insurance contracts are amortized over the period in which premiums are earned. Costs deferred on traditional life insurance products and other long-duration insurance contracts are primarily amortized over the anticipated premium-paying period of the NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) related policies in proportion to the ratio of the annual premiums to the total premiums anticipated, which is estimated using the same assumptions used in calculating policy reserves.
Goodwill	Goodwill The cost of an acquired entity over the fair value of net assets acquired is reported as Goodwill. Goodwill is not amortized, but rather is tested annually for recoverability or when certain triggering events require testing.
Insurance Reserves	Insurance Reserves Reserves for losses and LAE on property and casualty insurance coverage and health insurance coverage represent the estimated claim cost and loss adjustment expense necessary to cover the ultimate net cost of investigating and settling all losses incurred and unpaid. Such estimates are based on individual case estimates for reported claims and estimates for incurred but not reported (“IBNR”) losses. These estimates are adjusted in the aggregate for ultimate loss expectations based on historical experience patterns and current economic trends, with any change in the estimated ultimate liabilities being reported in the Consolidated Statements of Income in the period of change. Changes in such estimates may be material. For traditional life insurance products, the reserves for future policy benefits are estimated on the net level premium method using assumptions as of the issue date for mortality, interest, policy lapses and expenses, including provisions for adverse mortality. These assumptions vary by such characteristics as plan, age at issue and policy duration. Mortality assumptions are based on the Company’s historical experience and industry standards. Interest rate assumptions principally range from 3% to 7% . Lapse rate assumptions are based on actual and industry experience. Insurance Reserves for life insurance products also includes an estimate of the Company’s liability for unpaid life insurance claims and claims adjustment expenses, which includes an estimate for IBNR life insurance claims. Except when required by applicable law, the Company does not utilize a database of reported deaths maintained by the Social Security Administration or a comparable database in its operations, including to determine its IBNR liability for life insurance products. Instead of using such a database, the Company calculates its IBNR liability for life insurance products using Company-specific historical information, which includes analyzing average paid claims and the average lag between date of death and the date reported to the Company for claims that due proof of death has been provided.
Other Receivables	Other Receivables Other Receivables primarily include reinsurance recoverables and accrued investment income.
Other Assets	Other Assets Other Assets primarily include property and equipment, internal use software, insurance licenses acquired in business combinations, the value of other intangible assets acquired, corporate-owned life insurance and prepaid expenses. Property and equipment is depreciated over the useful lives of the assets, generally using the straight-line or double declining balance methods of depreciation depending on the asset involved. Internal use software is amortized over the useful life of the asset using the straight-line method of amortization. Write-offs of Long-lived Assets for the year ended December 31, 2015 was a charge of $11.1 million to write off the costs of a computer software development project that was abandoned by the Company’s Property & Casualty Insurance segment. Write-offs of Long-lived Assets for the year ended December 31, 2014 was a charge of $54.6 million to write off certain software for the Company’s Property & Casualty Insurance segment after the Company determined that it was no longer probable that the software would be fully implemented. Insurance licenses acquired in business combinations and other indefinite life intangibles are not amortized, but rather tested periodically for recoverability. Insurance Expenses for the year ended December 31, 2013 includes a charge of $1.4 million to write down the value of insurance licenses acquired for one of Kemper’s insurance subsidiaries to its estimated fair value. Corporate-owned life insurance is reported at cash surrender value with changes due to cost of insurance and investment experience reported in Other Income in the Consolidated Statements of Income. The Company accounts for the present value of the future profits embedded in life insurance in force acquired (“Life VIF”) based on actuarial estimates of the present value of estimated net cash flows. Life VIF was $32.5 million and $36.5 million at December 31, 2015 and 2014 , respectively. Life VIF is amortized using the effective interest method using interest rates NOTE 2. SUMMARY OF ACCOUNTING POLICIES AND ACCOUNTING CHANGES (Continued) consistent with the rates in the underlying insurance contracts. The Company estimates that it will record Life VIF amortization, net of interest, of $3.4 million in 2016, $3.2 million in 2017, $2.8 million in 2018, $2.4 million in 2019 and $2.0 million in 2020. The Company evaluates the Life VIF for recoverability annually. The Company accounts for the present value of the future profits embedded in Property and Casualty Insurance Customer Relationships Acquired (“P&C Customer Relationships”) based on the present value of estimated future cash flows from the customer relationships acquired. P&C Customer Relationships was $11.2 million and $13.3 million at December 31, 2015 and 2014 , respectively. P&C Customer Relationships is amortized using the effective interest method. P&C Customer Relationships is tested for recoverability using undiscounted projections of future cash flows and written down to estimated fair value if the carrying value exceeds the sum of such projections of undiscounted cash flows. The Company accounts for the present value of the future profits embedded in Property and Casualty Insurance Broker Relationships Acquired (“P&C Broker Relationships”) based on the present value of estimated future cash flows from the broker relationships acquired. P&C Broker Relationships was $18.1 million at December 31, 2015 . P&C Broker Relationships is amortized on a straight-line basis over 15 years . P&C Broker Relationships is tested for recoverability using undiscounted projections of future cash flows and written down to estimated fair value if the carrying value exceeds the sum of such projections of undiscounted cash flows.
Accrued Expenses and Other Liabilities	Accrued Expenses and Other Liabilities Accrued Expenses and Other Liabilities primarily include accrued salaries and commissions, pension benefits, postretirement medical benefits and accrued taxes, licenses and fees.
Recognition of Earned Premiums and Related Expenses	Recognition of Earned Premiums and Related Expenses Property and casualty insurance and short duration health insurance premiums are deferred when written and recognized and earned ratably over the periods to which the premiums relate. Unearned Premiums represent the portion of the premiums written related to the unexpired portion of policies in force which has been deferred and is reported as a liability. The Company performs a premium deficiency analysis typically at a product line level, namely automobile insurance, homeowners insurance and other insurance, which is consistent with the manner in which the Company acquires and services policies and measures profitability. Anticipated investment income is excluded from such analysis. A premium deficiency is recognized when the sum of expected claim costs, claim adjustment expenses, unamortized deferred policy acquisition costs and maintenance costs exceeds the related unearned premiums by first reducing related deferred policy acquisition costs to an amount, but not below zero, at which the premium deficiency would not exist. If a premium deficiency remains after first reducing deferred policy acquisition costs, a premium deficiency reserve is established and reported as a liability in the Company’s financial statements. The Company determined that a premium deficiency existed at December 31, 2015 with respect to Alliance United’s automobile insurance and recorded a charge of $9.0 million to reduce related deferred policy acquisition costs to the level at which the premium deficiency did not exist. Traditional life insurance premiums are recognized as revenue when due. Policyholders’ benefits are associated with related premiums to result in recognition of profits over the periods for which the benefits are provided using the net level premium method. Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses include provisions for future policy benefits under life and certain accident and health insurance contracts and provisions for reported claims, estimates for claims incurred but not reported and loss adjustment expenses. Benefit payments in excess of policy account balances are expensed.
Reinsurance	Reinsurance In the normal course of business, Kemper’s insurance subsidiaries reinsure certain risks above certain retention levels with other insurance enterprises. These reinsurance agreements do not relieve Kemper’s insurance subsidiaries of their legal obligations to the policyholder. Amounts recoverable from reinsurers are included in Other Receivables. Gains related to long-duration reinsurance contracts are deferred and amortized over the life of the underlying reinsured policies. Losses related to long-duration reinsurance contracts are recognized immediately. Any gain or loss associated with reinsurance agreements for which Kemper’s insurance subsidiaries have been legally relieved of their obligations to the policyholder is recognized in the period of relief.
Income Tax	Income Taxes Deferred income tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred income tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. A valuation allowance is maintained for the portion of deferred income tax assets that the Company does not expect to recover. Increases in the valuation allowance for deferred income tax assets are recognized as income tax expense. Decreases in the valuation allowance for deferred income tax assets are recognized as income tax benefit. The effect on deferred income tax assets and liabilities of a change in tax rates is recognized in income in the period in which the change is enacted. The Company reports a liability for unrecognized tax benefits resulting from uncertain tax positions taken, or expected to be taken, in an income tax return. The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense.

Acquisition of Business (Tables

Acquisition of Business (Tables)	12 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Schedule of Intangible Assets Acquired by Class [Table Text Block]	DOLLARS IN MILLIONS Dec 31, At Acquisition Date P & C Broker Relationships $ 18.1 $ 18.9 Value of In Force Policies 0.2 9.2 Other 3.7 4.5 Value of Intangible Assets Acquired $ 22.0 $ 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)	12 Months Ended
	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Schedule of Unrealized Loss on Investments	An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2015 is presented below. DOLLARS IN MILLIONS Less Than 12 Months 12 Months or Longer Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 56.6 $ (1.6 ) $ 24.1 $ (2.0 ) $ 80.7 $ (3.6 ) States and Political Subdivisions 131.0 (2.6 ) 0.9 (0.1 ) 131.9 (2.7 ) Corporate Securities: Bonds and Notes 783.8 (26.0 ) 133.6 (14.7 ) 917.4 (40.7 ) Collateralized Loan Obligations 57.4 (2.9 ) 0.8 (0.1 ) 58.2 (3.0 ) Other Mortgage- and Asset-backed — — 0.3 — 0.3 — Total Fixed Maturities 1,028.8 (33.1 ) 159.7 (16.9 ) 1,188.5 (50.0 ) Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate 2.7 — 12.3 (0.8 ) 15.0 (0.8 ) Other Industries 7.3 (0.8 ) — — 7.3 (0.8 ) Common Stocks: Finance, Insurance and Real Estate 16.3 (1.0 ) — — 16.3 (1.0 ) Other Industries 2.8 (0.3 ) — — 2.8 (0.3 ) Other Equity Interests: Exchange Traded Funds 135.2 (3.7 ) — — 135.2 (3.7 ) Limited Liability Companies and Limited Partnerships 2.7 (0.5 ) — — 2.7 (0.5 ) Total Equity Securities 167.0 (6.3 ) 12.3 (0.8 ) 179.3 (7.1 ) Total $ 1,195.8 $ (39.4 ) $ 172.0 $ (17.7 ) $ 1,367.8 $ (57.1 ) An aging of unrealized losses on the Company’s Investments in Fixed Maturities and Equity Securities at December 31, 2014 is presented below. DOLLARS IN MILLIONS Less Than 12 Months 12 Months or Longer Total 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 ) Redeemable Preferred Stocks — — — — — — 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 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table sets forth the pre-tax amount of OTTI credit losses, recognized in Retained Earnings for Investments in Fixed Maturities held by the Company as of December 31, 2015 , 2014 and 2013 , for which a portion of the OTTI loss related to factors other than credit has been recognized in AOCI, and the corresponding changes in such amounts. DOLLARS IN MILLIONS 2015 2014 2013 Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Year $ 5.3 $ 9.9 $ 4.6 Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year 0.2 2.4 1.8 Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year — 0.6 7.3 Reductions for Change in Impairment Status: From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell (0.4 ) (2.4 ) (3.2 ) Reductions for Investments Sold During Year — (5.2 ) (0.6 ) Balance at End of Year $ 5.1 $ 5.3 $ 9.9 The components of Net Impairment Losses Recognized in Earnings reported in the Consolidated Statements of Income for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Fixed Maturities $ (11.5 ) $ (5.7 ) $ (10.3 ) Equity Securities (15.7 ) (7.1 ) (3.6 ) Real Estate — (2.4 ) — Net Impairment Losses Recognized in Earnings $ (27.2 ) $ (15.2 ) $ (13.9 )
Schedule of Other Investments	The carrying values of the Company’s Other Investments at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Loans to Policyholders at Unpaid Principal $ 288.4 $ 283.4 Real Estate at Depreciated Cost 149.8 160.9 Trading Securities at Fair Value 4.7 4.9 Other 0.3 0.4 Total $ 443.2 $ 449.6
Investments in Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities Reconciliation	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 The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2015 were: DOLLARS IN MILLIONS Amortized Cost Gross Unrealized Fair Value Gains Losses U.S. Government and Government Agencies and Authorities $ 298.0 $ 26.2 $ (3.6 ) $ 320.6 States and Political Subdivisions 1,513.7 111.6 (2.7 ) 1,622.6 Corporate Securities: Bonds and Notes 2,651.5 202.0 (40.7 ) 2,812.8 Redeemable Preferred Stocks 3.7 0.1 — 3.8 Collateralized Loan Obligations 90.0 0.3 (3.0 ) 87.3 Other Mortgage- and Asset-backed 3.8 1.4 — 5.2 Investments in Fixed Maturities $ 4,560.7 $ 341.6 $ (50.0 ) $ 4,852.3
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair values of the Company’s Investments in Fixed Maturities at December 31, 2015 by contractual maturity were: DOLLARS IN MILLIONS Amortized Cost Fair Value Due in One Year or Less $ 52.4 $ 54.6 Due after One Year to Five Years 806.8 840.2 Due after Five Years to Ten Years 1,475.3 1,507.1 Due after Ten Years 2,009.5 2,227.9 Mortgage- and Asset-backed Securities Not Due at a Single Maturity Date 216.7 222.5 Investments in Fixed Maturities $ 4,560.7 $ 4,852.3
Investments in Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities Reconciliation	Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2015 were: DOLLARS IN MILLIONS Cost Gross Unrealized Fair Value Gains Losses Preferred Stocks: Finance, Insurance and Real Estate $ 80.8 $ 4.9 $ (0.8 ) $ 84.9 Other Industries 17.1 2.7 (0.8 ) 19.0 Common Stocks: Finance, Insurance and Real Estate 18.9 5.3 (1.0 ) 23.2 Other Industries 9.4 4.3 (0.2 ) 13.5 Other Equity Interests: Exchange Traded Funds 179.7 1.1 (3.7 ) 177.1 Limited Liability Companies and Limited Partnerships 181.0 25.0 (0.5 ) 205.5 Investments in Equity Securities $ 486.9 $ 43.3 $ (7.0 ) $ 523.2 Gross unrealized gains and gross unrealized losses on the Company’s Investments in Equity Securities at December 31, 2014 were: DOLLARS IN MILLIONS Gross Unrealized 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

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill balances by business segment at December 31, 2015 and December 31, 2014 were: DOLLARS IN MILLIONS 2015 2014 Property & Casualty Insurance 103.6 92.4 Life & Health Insurance 219.4 219.4 Total $ 323.0 $ 311.8

Property and Casualty Insuran41

Property and Casualty Insurance Reserves (Tables)	12 Months Ended
	Dec. 31, 2015
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense [Abstract]
Liability for Unpaid Claims Adjustment Expense by Expense Type	Property and Casualty Insurance Reserve activity for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Beginning Property and Casualty Insurance Reserves: Gross of Reinsurance at Beginning of Year $ 733.9 $ 843.5 $ 970.6 Less Reinsurance Recoverables at Beginning of Year 54.9 63.4 66.2 Property and Casualty Insurance Reserves, Net of Reinsurance at Beginning of Year 679.0 780.1 904.4 Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification 125.4 — — Incurred Losses and LAE related to: Current Year: Continuing Operations 1,123.3 965.4 1,056.5 Prior Years: Continuing Operations (11.5 ) (53.5 ) (59.8 ) Discontinued Operations (8.6 ) (3.6 ) (4.8 ) Total Incurred Losses and LAE related to Prior Years (20.1 ) (57.1 ) (64.6 ) Total Incurred Losses and LAE 1,103.2 908.3 991.9 Paid Losses and LAE related to: Current Year: Continuing Operations 723.2 639.8 682.2 Prior Years: Continuing Operations 366.2 360.4 421.7 Discontinued Operations 7.4 9.2 12.3 Total Paid Losses and LAE related to Prior Years 373.6 369.6 434.0 Total Paid Losses and LAE 1,096.8 1,009.4 1,116.2 Property and Casualty Insurance Reserves, Net of Reinsurance and Indemnification at End of Year 810.8 679 780.1 Plus Reinsurance and Indemnification Recoverables at End of Year 52.0 54.9 63.4 Property and Casualty Insurance Reserves, Gross of Reinsurance at End of Year $ 862.8 $ 733.9 $ 843.5

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Total amortized cost of debt outstanding at December 31, 2015 and 2014 was: DOLLARS IN MILLIONS 2015 2014 Senior Notes: 6.00% Senior Notes due November 30, 2015 $ — $ 249.5 6.00% Senior Notes due May 15, 2017 359.1 358.5 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 $ 750.6 $ 752.1
Schedule of Interest Expense	Interest Expense, including facility fees, accretion of discount and amortization of issuance costs, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Notes Payable under Revolving Credit Agreement $ 0.8 $ 0.8 $ 1.4 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 15.5 15.4 6.00% Senior Notes due May 15, 2017 22.2 22.2 22.2 4.35% Senior Notes due February 15, 2025 9.5 — — 7.375% Subordinated Debentures due February 27, 2054 11.1 9.4 — Mortgage Note Payable — — 0.2 Interest Expense before Capitalization of Interest 47.3 47.9 39.2 Capitalization of Interest (0.8 ) (1.0 ) (0.9 ) Total Interest Expense $ 46.5 $ 46.9 $ 38.3
Schedule of Interest Paid	Interest Paid, including facility fees, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Notes Payable under Revolving Credit Agreement $ 1.4 $ 0.6 $ 0.8 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 15.0 15.0 6.00% Senior Notes due May 15, 2017 21.6 21.6 21.6 4.35% Senior Notes due February 15, 2025 5.2 — — 7.375% Subordinated Debentures due February 27, 2054 11.1 8.5 — Mortgage Note Payable — — 0.3 Total Interest Paid $ 44.1 $ 45.7 $ 37.7

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2015
Leases [Abstract]
Schedule of Rent Expense	Net rental expense for operating leases for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Minimum Rental Expense $ 20.7 $ 21.5 $ 28.3 Less Sublease Rental Income (1.7 ) (1.3 ) (1.8 ) Net Rental Expense $ 19.0 $ 20.2 $ 26.5
Schedule of Future Minimum Lease Payments for Capital and Operating Leases	Future minimum lease payments under capital and operating leases at December 31, 2015 were: DOLLARS IN MILLIONS Capital Leases Operating Leases 2016 $ 2.4 $ 17.8 2017 0.7 16.5 2018 0.1 11.9 2019 — 8.6 2020 — 6.3 2021 and Thereafter — 14.2 Total Future Payments $ 3.2 $ 75.3 Less Imputed Interest (0.2 ) Present Value of Minimum Capital Lease Payments $ 3.0

Long-term Equity-based Compen44

Long-term Equity-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the years ended December 31, 2015 , 2014 and 2013 are presented below. 2015 2014 2013 RANGE OF VALUATION ASSUMPTIONS Expected Volatility 21.31 % - 41.65 % 25.76 % - 44.43 % 39.10 % - 48.23 % Risk-free Interest Rate 1.08 - 1.96 1.07 - 2.14 0.62 - 1.38 Expected Dividend Yield 2.37 - 2.62 2.53 - 2.60 2.83 - 3.00 WEIGHTED-AVERAGE EXPECTED LIFE IN YEARS Employee Grants 4 - 7 4 - 7 4 - 7 Director Grants 5.5 6 6
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	activity for the year ended December 31, 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 397,532 37.51 Exercised (629,625 ) 31.84 Forfeited or Expired (605,461 ) 46.45 Outstanding at December 31, 2015 1,428,157 39.75 5.4 $ 2.1 Vested and Expected to Vest at December 31, 2015 1,393,530 $ 39.84 5.3 $ 2.0 Exercisable at December 31, 2015 978,437 $ 41.02 3.8 $ 1.6
Schedule of Options Outstanding	Information pertaining to Tandem Awards outstanding at December 31, 2015 is presented below. Outstanding Exercisable Range of Exercise Prices ($) Shares Subject to Awards Weighted- average Exercise Price Per Share ($) Weighted- average Remaining Contractual Life (in Years) Shares Subject to Awards Weighted- average Exercise Price Per Share ($) 15.01 - 20.00 4,000 16.48 3.35 4,000 16.48 20.01 - 25.00 14,500 23.47 4.07 14,500 23.47 25.01 - 30.00 75,750 28.67 5.46 75,750 28.67 30.01 - 35.00 173,625 33.20 7.11 131,998 33.12 35.01 - 40.00 600,000 36.55 7.73 290,187 36.83 40.01 - 45.00 103,782 40.70 9.89 5,502 40.70 45.01 - 50.00 456,500 48.80 0.59 456,500 48.80 15.01 - 50.00 1,428,157 39.75 5.36 978,437 41.02
Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan, Activity [Table Text Block]	Activity related to DSU awards for the year ended December 31, 2015 is presented below. Number of DSUs Weighted- average Grant-date Fair Value Per DSU 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 Vested Balance at December 31, 2015 7,000 $ 36.17
Time Vested Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	Activity related to nonvested time-based restricted stock and nonvested time-based RSUs for the year ended December 31, 2015 is presented below. Time-based Restricted Stock Awards Time-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- average Grant-date Fair Value Per RSU Nonvested Balance at Beginning of the Year 53,095 $ 32.42 30,024 $ 36.60 Granted — — 74,375 36.79 Vested (18,733 ) 31.09 (16,701 ) 36.33 Forfeited (4,914 ) 29.48 (2,650 ) 36.19 Nonvested Balance at December 31, 2015 29,448 $ 33.77 85,048 $ 36.84
Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	Activity related to nonvested performance-based restricted stock and nonvested performance-based RSU awards for the year ended December 31, 2015 is presented below. Performance-based Restricted Stock Awards Performance-based RSU Awards Number of Shares Weighted- average Grant-date Fair Value Per Share Number of RSUs Weighted- average Grant-date Fair Value Per RSU 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 December 31, 2015 51,400 $ 42.12 128,100 $ 41.85

Income From Continuing Operat45

Income From Continuing Operations Per Unrestricted Share (Tables)	12 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in 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 years ended December 31, 2015 , 2014 and 2013 is presented below. 2015 2014 2013 DOLLARS IN MILLIONS Income from Continuing Operations $ 80.2 $ 112.6 $ 214.5 Less Income from Continuing Operations Attributed to Participating Awards 0.4 0.5 1.1 Income from Continuing Operations Attributed to Unrestricted Shares 79.8 112.1 213.4 Dilutive Effect on Income of Equity-based Compensation Equivalent Shares — — — Diluted Income from Continuing Operations Attributed to Unrestricted Shares $ 79.8 $ 112.1 $ 213.4 SHARES IN THOUSANDS Weighted-average Unrestricted Shares Outstanding 51,606.9 53,762.5 56,856.9 Equity-based Compensation Equivalent Shares 76.6 105.4 126.7 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 51,683.5 53,867.9 56,983.6 PER UNRESTRICTED SHARE IN WHOLE DOLLARS Basic Income from Continuing Operations Per Unrestricted Share $ 1.55 $ 2.08 $ 3.75 Diluted Income from Continuing Operations Per Unrestricted Share $ 1.55 $ 2.08 $ 3.74
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	SHARES IN THOUSANDS 2015 2014 2013 Equity-based Compensation Equivalent Shares 959.7 1,605.1 2,080.9 Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution 959.7 1,605.1 2,080.9

Other Comprehensive Income (L46

Other Comprehensive Income (Loss) And Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2015
Equity [Abstract]
Schedule of Comprehensive Income (Loss)	The components of Other Comprehensive Income (Loss) Before Income Taxes for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Other Comprehensive Income (Loss) Before Income Taxes: Unrealized Holding Gains (Losses) Arising During the Year Before Reclassification Adjustment $ (151.9 ) $ 259.7 $ (324.9 ) Reclassification Adjustment for Amounts Included in Net Income (25.4 ) (25.1 ) (37.9 ) Unrealized Holding Gains (Losses) (177.3 ) 234.6 (362.8 ) Foreign Currency Translation Adjustments Arising During the Year Before Reclassification Adjustment (1.4 ) (1.0 ) 0.2 Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustments (1.4 ) (1.0 ) 0.2 Net Unrecognized Postretirement Benefit Costs Arising During the Year 3.0 (106.4 ) 61.6 Amortization of Net Unrecognized Postretirement Benefit Costs 23.1 7.9 25.0 Net Unrecognized Postretirement Benefit Costs 26.1 (98.5 ) 86.6 Other Comprehensive Income (Loss) Before Income Taxes $ (152.6 ) $ 135.1 $ (276.0 ) The components of Other Comprehensive Income Tax Benefit (Expense) for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Income Tax Benefit (Expense): Unrealized Holding Gains and Losses Arising During the Year Before Reclassification Adjustment $ 53.9 $ (91.6 ) $ 115.9 Reclassification Adjustment for Amounts Included in Net Income 8.9 8.8 13.2 Unrealized Holding Gains and Losses 62.8 (82.8 ) 129.1 Foreign Currency Translation Adjustments Arising During the Year Before Reclassification Adjustment 0.5 0.4 (0.1 ) Reclassification Adjustment for Amounts Included in Net Income — — — Foreign Currency Translation Adjustment 0.5 0.4 (0.1 ) Net Unrecognized Postretirement Benefit Costs Arising During the Year (1.1 ) 37.5 (21.6 ) Amortization of Net Unrecognized Postretirement Benefit Costs (8.0 ) (2.8 ) (8.8 ) Net Unrecognized Postretirement Benefit Costs (9.1 ) 34.7 (30.4 ) Other Comprehensive Income Tax Benefit (Expense) $ 54.2 $ (47.7 ) $ 98.6
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of AOCI at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Unrealized Gains on Investments, Net of Income Taxes: Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings $ 1.4 $ 2.8 Other Net Unrealized Gains on Investments 211.7 324.8 Foreign Currency Translation Adjustments, Net of Income Taxes (0.7 ) 0.2 Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes (88.1 ) (105.1 ) Accumulated Other Comprehensive Income $ 124.3 $ 222.7
Reclassification out of Accumulated Other Comprehensive Income	DOLLARS IN MILLIONS 2015 2014 2013 Reclassification of AOCI from Unrealized Gains and Losses on Available For Sale Securities to: Net Realized Gains on Sales of Investments $ 52.6 $ 37.9 $ 51.8 Net Impairment Losses Recognized in Earnings (27.2 ) (12.8 ) (13.9 ) Total Before Income Taxes 25.4 25.1 37.9 Income Tax Expense (8.9 ) (8.8 ) (13.2 ) Reclassification from AOCI, Net of Income Taxes 16.5 16.3 24.7 Reclassification of AOCI from Amortization of Net Unrecognized Postretirement Benefit Costs to: Interest and Other Expenses (23.1 ) (7.9 ) (25.0 ) Income Tax Benefit 8.0 2.8 8.8 Reclassification from AOCI, Net of Income Taxes (15.1 ) (5.1 ) (16.2 ) Total Reclassification from AOCI to Net Income $ 1.4 $ 11.2 $ 8.5

Income From Investments (Tables

Income From Investments (Tables)	12 Months Ended
	Dec. 31, 2015
Investment Income, Net [Abstract]
Investment Income	Net Investment Income for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Investment Income (Loss): Interest and Dividends on Fixed Maturities $ 236.2 $ 227.4 $ 235.5 Dividends on Equity Securities 32.4 59.9 38.0 Equity Method Limited Liability Investments 19.0 9.0 26.4 Fair Value Option Investments 0.2 (0.7 ) — Short-term Investments 0.4 0.6 0.1 Loans to Policyholders 21.1 20.5 19.8 Real Estate 11.9 12.1 20.8 Other — 0.1 — Total Investment Income 321.2 328.9 340.6 Investment Expenses: Real Estate 11.3 11.3 18.3 Other Investment Expenses 7.3 8.5 7.6 Total Investment Expenses 18.6 19.8 25.9 Net Investment Income $ 302.6 $ 309.1 $ 314.7
Realized Gain (Loss) on Investments	The components of Net Realized Gains on Sales of Investments for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Fixed Maturities: Gains on Sales $ 16.1 $ 7.0 $ 30.9 Losses on Sales (1.1 ) (0.2 ) (0.4 ) Equity Securities: Gains on Sales 39.2 33.1 21.8 Losses on Sales (1.6 ) (2.0 ) (0.5 ) Equity Method Limited Liability Investments: Gains on Sales — — 2.5 Real Estate: Gains on Sales — — 44.2 Losses on Sales (0.2 ) (0.2 ) — Other Investments: Gain on Sale of Subsidiary — 1.6 — Gains on Other Sales — — 0.1 Losses on Sales — (0.1 ) (0.1 ) Net Gains (Losses) on Trading Securities (0.3 ) (0.1 ) 0.6 Net Realized Gains on Sales of Investments $ 52.1 $ 39.1 $ 99.1 Gross Gains on Sales $ 55.3 $ 41.7 $ 99.5 Gross Losses on Sales (2.9 ) (2.5 ) (1.0 ) Net Gains (Losses) on Trading Securities (0.3 ) (0.1 ) 0.6 Net Realized Gains on Sales of Investments $ 52.1 $ 39.1 $ 99.1
Other than Temporary Impairment, Credit Losses Recognized in Earnings	The following table sets forth the pre-tax amount of OTTI credit losses, recognized in Retained Earnings for Investments in Fixed Maturities held by the Company as of December 31, 2015 , 2014 and 2013 , for which a portion of the OTTI loss related to factors other than credit has been recognized in AOCI, and the corresponding changes in such amounts. DOLLARS IN MILLIONS 2015 2014 2013 Cumulative Balance of Pre-tax Credit Losses Recognized in Retained Earnings at Beginning of Year $ 5.3 $ 9.9 $ 4.6 Pre-tax Credit Losses on Fixed Maturities without Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year 0.2 2.4 1.8 Additional Pre-tax Credit Losses on Fixed Maturities with Pre-tax Credit Losses Included in Cumulative Balance at Beginning of Year — 0.6 7.3 Reductions for Change in Impairment Status: From Status of Credit Loss to Status of Intent-to-sell or Required-to-sell (0.4 ) (2.4 ) (3.2 ) Reductions for Investments Sold During Year — (5.2 ) (0.6 ) Balance at End of Year $ 5.1 $ 5.3 $ 9.9 The components of Net Impairment Losses Recognized in Earnings reported in the Consolidated Statements of Income for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Fixed Maturities $ (11.5 ) $ (5.7 ) $ (10.3 ) Equity Securities (15.7 ) (7.1 ) (3.6 ) Real Estate — (2.4 ) — Net Impairment Losses Recognized in Earnings $ (27.2 ) $ (15.2 ) $ (13.9 )

Insurance Expenses (Tables)

Insurance Expenses (Tables)	12 Months Ended
	Dec. 31, 2015
Insurance Expenses [Abstract]
Schedule of Insurance Expenses	Insurance Expenses for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Commissions $ 357.6 $ 324.6 $ 345.7 General Expenses 241.1 258.1 257.1 Taxes, Licenses and Fees 44.2 38.9 42.8 Total Costs Incurred 642.9 621.6 645.6 Policy Acquisition Costs: Deferred (270.6 ) (235.8 ) (253.4 ) Amortized 257.4 235.4 253.9 Net Policy Acquisition Costs Amortized (Deferred) (13.2 ) (0.4 ) 0.5 Life VIF, P & C VIF and P&C Customer Relationships Amortized 15.4 7.2 8.3 Insurance Expenses $ 645.1 $ 628.4 $ 654.4

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Schedule of Current and Deferred Tax Assets Table [Table Text Block]	Current and Deferred Income Tax Assets at December 31, 2015 and December 31, 2014 were: DOLLARS IN MILLIONS 2015 2014 Current Income Tax Assets $ 9.5 $ — Deferred Income Tax Assets 31.9 — Current and Deferred Income Tax Assets $ 41.4 $ —
Schedule of Components of Income Tax Liabilities Table	The components of Liabilities for Income Taxes at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Current Income Tax Liabilities $ — $ 7.8 Deferred Income Tax Liabilities — 21.5 Unrecognized Tax Benefits 3.8 7.2 Liabilities for Income Taxes $ 3.8 $ 36.5
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences that give rise to significant portions of the Company’s Net Deferred Income Tax Assets and Deferred Income Tax Liabilities at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Deferred Income Tax Assets: Insurance Reserves $ 83.0 $ 78.7 Unearned Premium Reserves 41.7 35.5 Tax Capitalization of Policy Acquisition Costs 71.5 73.0 Payroll and Employee Benefit Accruals 72.0 74.0 Net Operating Loss Carryforwards 30.5 31.7 Other 15.7 9.8 Total Deferred Income Tax Assets 314.4 302.7 Deferred Income Tax Liabilities: Investments 109.8 160.1 Deferred Policy Acquisition Costs 110.7 106.1 Life VIF and P&C Customer Relationships 15.5 17.7 Goodwill and Other Intangible Assets Acquired 37.0 28.4 Depreciable Assets 7.3 7.4 Other 2.2 4.5 Total Deferred Income Tax Liabilities 282.5 324.2 Net Deferred Income Tax Assets (Liabilities) $ 31.9 $ (21.5 )
Summary of Operating Loss Carryforwards	The expiration of federal net operating loss (“NOL”) carryforwards and their related deferred income tax assets at December 31, 2015 is presented below by year of expiration. DOLLARS IN MILLIONS NOL Carry-forwards Deferred Tax Asset Expiring in: 2020 $ 7.8 $ 2.7 2021 through 2025 30.5 10.7 2026 through 2030 29.9 10.5 2032 18.9 6.6 Total All Years $ 87.1 $ 30.5
Reconciliation Of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of Unrecognized Tax Benefits for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS 2015 2014 2013 Balance at Beginning of Year $ 7.2 $ 6.8 $ 6.4 Additions for Tax Positions of Current Period 0.2 0.1 0.1 Additions for Tax Positions of Prior Years — 0.3 0.3 Reduction for Expiration of Federal Statute of Limitations (3.6 ) — — Balance at End of Year $ 3.8 $ 7.2 $ 6.8
Schedule of Components of Income Tax Expense (Benefit)	The components of Income Tax Expense from Continuing Operations for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Current Income Tax Expense $ (25.7 ) $ (41.7 ) $ (49.4 ) Deferred Income Tax Benefit (Expense) 2.2 (5.5 ) (50.1 ) (Increase) Decrease Unrecognized Tax Benefits 3.4 (0.4 ) (0.4 ) Income Tax Expense $ (20.1 ) $ (47.6 ) $ (99.9 )
Schedule of Effective Income Tax Rate Reconciliation	A reconciliation of the Statutory Federal Income Tax Expense and Rate to the Company’s Effective Income Tax Expense and Rate from Continuing Operations for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS 2015 2014 2013 Amount Rate Amount Rate Amount Rate Statutory Federal Income Tax Expense $ (35.1 ) 35.0 % $ (56.1 ) 35.0 % $ (110.0 ) 35.0 % Tax-exempt Income and Dividends Received Deduction 9.8 (9.7 ) 9.0 (5.6 ) 10.6 (3.4 ) Unrecognized Tax Benefit (Expense) 2.1 (2.1 ) (0.3 ) — (0.3 ) — Indemnification Recoveries 3.7 (3.6 ) — — — — State Income Taxes (0.6 ) 0.5 (0.6 ) 0.4 (0.2 ) 0.1 Other, Net — — 0.4 (0.1 ) — 0.1 Effective Income Tax Expense from Continuing Operations $ (20.1 ) 20.1 % $ (47.6 ) 29.7 % $ (99.9 ) 31.8 %
Comprehensive Income Tax Benefit and Expenses	Comprehensive Income Tax Expense included in the Consolidated Financial Statements for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Income Tax Expense: Continuing Operations $ (20.1 ) $ (47.6 ) $ (99.9 ) Discontinued Operations (3.1 ) (1.1 ) (1.7 ) Unrealized Depreciation (Appreciation) on Securities 62.8 (82.8 ) 129.1 Foreign Currency Translation Adjustments on Investments 0.5 0.4 (0.1 ) Tax Effects from Postretirement Benefit Plans (9.1 ) 34.7 (30.4 ) Tax Effects from Long-term Equity-based Compensation included in Paid-in Capital (1.0 ) (1.0 ) 0.2 Comprehensive Income Tax Benefit (Expense) $ 30.0 $ (97.4 ) $ (2.8 )

Pension Benefits (Tables)

Pension Benefits (Tables) - Pension Plans, Defined Benefit [Member]	12 Months Ended
	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Schedule of Changes in Fair Value of Plan Assets	Changes in Fair Value of Plan Assets and Changes in Projected Benefit Obligation for the Pension Plan for the years ended December 31, 2015 and 2014 is presented below. DOLLARS IN MILLIONS 2015 2014 Fair Value of Plan Assets at Beginning of Year $ 543.0 $ 524.5 Actual Return on Plan Assets (10.6 ) 41.7 Benefits Paid (24.9 ) (23.2 ) Fair Value of Plan Assets at End of Year 507.5 543.0 Projected Benefit Obligation at Beginning of Year 634.0 515.5 Service Cost 10.5 8.7 Interest Cost 25.7 24.8 Benefits Paid (24.9 ) (23.2 ) Plan Amendments — (0.6 ) Actuarial Losses (Gains) (47.5 ) 108.8 Projected Benefit Obligation at End of Year 597.8 634.0 Funded Status—Plan Assets in Excess (Deficit) of Projected Benefit Obligation $ (90.3 ) $ (91.0 ) Unamortized Amount Reported in AOCI at End of Year: Accumulated Actuarial Loss $ (152.2 ) $ (178.6 ) Prior Service Credit 0.4 0.5 Unamortized Amount Reported in AOCI at End of Year $ (151.8 ) $ (178.1 ) Accumulated Benefit Obligation at End of Year $ 573.9 $ 608.2
Schedule of Assumptions Used	The weighted-average discount rate and rate of increase in future compensation levels used to estimate the components of the Projected Benefit Obligation for the Pension Plan at December 31, 2015 and 2014 were: 2015 2014 Discount Rate 4.47 % 4.10 % Rate of Increase in Future Compensation Levels 3.15 3.31 used to develop the components of Pension Expense for the Pension Plan for the years ended December 31, 2015 , 2014 and 2013 were: 2015 2014 2013 Discount Rate 4.10 % 4.90 % 4.05 % Rate of Increase in Future Compensation Levels 3.31 3.05 3.08 Expected Long Term Rate of Return on Plan Assets 6.75 7.00 7.00
Schedule of Allocation of Plan Assets	Weighted-average asset allocations for the Pension Plan at December 31, 2015 and 2014 by asset category were: ASSET CATEGORY 2015 2014 Cash and Short-term Investments 4 % 4 % Corporate Bonds and Notes 28 29 Common and Preferred Stocks 43 43 Exchange Traded Funds 9 12 Other Assets 16 12 Total 100 % 100 %
Fair Value, Measurement Inputs, Disclosure	Fair value measurements for the Pension Plan’s assets at December 31, 2014 are summarized below. DOLLARS IN MILLIONS Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 18.4 $ — $ — $ 18.4 States and Political Subdivisions — 3.3 — 3.3 Corporate Bonds and Notes — 136.6 — 136.6 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 6.4 — 6.4 Common Stocks: Manufacturing 98.8 15.0 — 113.8 Other Industries 79.3 2.3 — 81.6 Other Equity Interests: Collective Investment Funds — 30.0 — 30.0 Exchange Traded Funds 65.5 — — 65.5 Limited Liability Companies and Limited Partnerships — — 64.5 64.5 Short-term Investments 21.5 — — 21.5 Receivables and Other 1.0 — 0.4 1.4 Total $ 284.5 $ 193.6 $ 64.9 $ 543.0 Fair value measurements for the Pension Plan’s assets at December 31, 2015 are summarized below. DOLLARS IN MILLIONS Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fair Value Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 19.2 $ — $ — $ 19.2 States and Political Subdivisions — 3.2 — 3.2 Corporate Bonds and Notes — 122.2 — 122.2 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 6.1 — 6.1 Common Stocks: Manufacturing 77.9 16.2 — 94.1 Other Industries 82.5 1.8 — 84.3 Other Equity Interests: Collective Investment Funds — 31.1 — 31.1 Exchange Traded Funds 47.2 — — 47.2 Limited Liability Companies and Limited Partnerships — — 78.2 78.2 Short-term Investments 20.4 — — 20.4 Receivables and Other 1.1 — 0.4 1.5 Total $ 248.3 $ 180.6 $ 78.6 $ 507.5
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)	The components of Comprehensive Pension Expense (Income) for the Pension Plan for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Service Cost Earned During the Year $ 10.5 $ 8.7 $ 10.8 Interest Cost on Projected Benefit Obligation 25.7 24.8 22.4 Expected Return on Plan Assets (35.0 ) (34.9 ) (29.7 ) Amortization of Actuarial Loss 24.4 9.7 26.2 Pension Expense Recognized in Consolidated Statements of Income 25.6 8.3 29.7 Unrecognized Pension Loss (Gain) Arising During the Year (1.9 ) 102.0 (53.8 ) Prior Service Credit Arising During the Year — (0.6 ) — Amortization of Accumulated Unrecognized Pension Loss (24.4 ) (9.7 ) (26.2 ) Comprehensive Pension Expense (Income) $ (0.7 ) $ 100.0 $ (50.3 )
Schedule of Expected Benefit Payments	The following benefit payments (net of participant contributions), which consider expected future service, as appropriate, are expected to be paid from the Pension Plan: DOLLARS IN MILLIONS Years Ending December 31, 2016 2017 2018 2019 2020 2021-2025 Estimated Pension Benefit Payments $ 26.3 $ 27.7 $ 29.1 $ 30.3 $ 31.5 $ 174.4
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Changes in Fair Value of Plan Assets	Additional information pertaining to the changes in the fair value of the Pension Plan’s assets classified as Level 3 for the year ended December 31, 2014 is presented below. DOLLARS IN MILLIONS Other Equity Interests Receivables and Other Total Balance at Beginning of Year $ 46.9 $ 0.5 $ 47.4 Return on Plan Assets Held 3.4 — 3.4 Purchases, Sales and Settlements, Net 14.2 (0.1 ) 14.1 Balance at End of Year $ 64.5 $ 0.4 $ 64.9 Additional information pertaining to the changes in the fair value of the Pension Plan’s assets classified as Level 3 for the year ended December 31, 2015 is presented below. DOLLARS IN MILLIONS Other Equity Interests Receivables and Other Total Balance at Beginning of Year $ 64.5 $ 0.4 $ 64.9 Return on Plan Assets Held (1.5 ) — (1.5 ) Purchases, Sales and Settlements, Net 15.2 — 15.2 Balance at End of Year $ 78.2 $ 0.4 $ 78.6

Postretirement Benefits Other51

Postretirement Benefits Other Than Pensions (Tables) - Other Postretirement Benefit Plan, Defined Benefit [Member]	12 Months Ended
	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Schedule of Changes in Fair Value of Plan Assets	Changes in Fair Value of Plan Assets and Changes in Accumulated Postretirement Benefit Obligation for the years ended December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Fair Value of Plan Assets at Beginning of Year $ — $ — Employer Contributions 3.4 3.4 Plan Participants’ Contributions 1.2 1.2 Benefits Paid (4.6 ) (4.6 ) Fair Value of Plan Assets at End of Year — — Accumulated Postretirement Benefit Obligation at Beginning of Year 31.1 35.1 Service Cost 0.2 0.2 Interest Cost 1.0 1.1 Plan Participants’ Contributions 1.2 1.2 Benefits Paid (4.6 ) (4.6 ) Medicare Part D Subsidy Received 0.3 0.1 Actuarial Loss (Gain) 0.4 (2.0 ) Accumulated Postretirement Benefit Obligation at End of Year 29.6 31.1 Funded Status—Accumulated Postretirement Benefit Obligation in Excess of Plan Assets $ (29.6 ) $ (31.1 ) Unamortized Actuarial Gain Reported in AOCI at End of Year $ 16.8 $ 18.6
Schedule of Assumptions Used	The weighted-average discount rate and rate of increase in future compensation levels used to develop the components of the Accumulated Postretirement Benefit Obligation at December 31, 2015 and 2014 were: 2015 2014 Discount Rate 3.70 % 3.40 % Rate of Increase in Future Compensation Levels 2.64 2.68 The weighted-average discount rate and rate of increase in future compensation levels used to develop OPEB Expense for the years ended December 31, 2015 , 2014 and 2013 were: 2015 2014 2013 Discount Rate 3.40 % 4.00 % 3.15 % Rate of Increase in Future Compensation Levels 2.68 2.10 2.10
Schedule of Comprehensive Other Postretirement Employee Benefit Expense	The components of Comprehensive OPEB Income for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Service Cost Earned During the Year $ 0.2 $ 0.2 $ 0.2 Interest Cost on Accumulated Postretirement Benefit Obligation 1.0 1.1 1.2 Amortization of Actuarial Gain (1.4 ) (1.8 ) (1.2 ) OPEB Expense (Income) Recognized in Consolidated Statements of Income (0.2 ) (0.5 ) 0.2 Unrecognized OPEB Loss (Gain) Arising During the Year 0.4 (2.0 ) (6.2 ) Amortization of Accumulated Unrecognized OPEB Gain 1.4 1.8 1.2 Comprehensive OPEB Expense (Income) $ 1.6 $ (0.7 ) $ (4.8 )
Schedule of Expected Benefit Payments	The following benefit payments (net of participant contributions), which consider expected future service, as appropriate, are expected to be paid: DOLLARS IN MILLIONS Years Ending December 31, 2016 2017 2018 2019 2020 2021-2025 Estimated Benefit Payments: Excluding Medicare Part D Subsidy $ 3.6 $ 3.6 $ 3.5 $ 3.4 $ 3.2 $ 13.5 Expected Medicare Part D Subsidy (0.3 ) (0.3 ) (0.3 ) (0.3 ) (0.3 ) (1.5 ) Net Estimated Benefit Payments $ 3.3 $ 3.3 $ 3.2 $ 3.1 $ 2.9 $ 12.0

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2015
Segment Reporting [Abstract]
Segment Assets	Segment Assets at December 31, 2015 and 2014 were: DOLLARS IN MILLIONS 2015 2014 Property & Casualty Insurance $ 2,749.0 $ 2,486.1 Life & Health Insurance 4,733.9 4,810.6 Corporate and Other, Net 553.2 536.7 Total Assets $ 8,036.1 $ 7,833.4
Earned Premiums by Product Line	Earned Premiums by product line for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Personal Automobile $ 1,027.7 $ 831.4 $ 959.1 Homeowners 286.3 312.4 326.2 Other Personal Property and Casualty Insurance 122.1 127.4 134.1 Commercial Automobile 54.5 54.8 52.3 Life 374.1 387.6 392.7 Accident and Health 144.9 148.6 161.4 Total Earned Premiums $ 2,009.6 $ 1,862.2 $ 2,025.8
Segment Revenues	Segment Revenues, including a reconciliation to Total Revenues, for the years ended December 31, 2015 , 2014 and 2013 were: DOLLARS IN MILLIONS 2015 2014 2013 Segment Revenues: Property & Casualty Insurance: Earned Premiums $ 1,415.2 $ 1,249.5 $ 1,392.9 Net Investment Income 73.3 72.7 90.9 Other Income 0.6 0.5 0.5 Total Property & Casualty Insurance 1,489.1 1,322.7 1,484.3 Life & Health Insurance: Earned Premiums 594.4 612.7 632.9 Net Investment Income 214.2 218.7 209.9 Other Income 2.4 0.9 0.2 Total Life & Health Insurance 811.0 832.3 843.0 Total Segment Revenues 2,300.1 2,155.0 2,327.3 Net Realized Gains on the Sales of Investments 52.1 39.1 99.1 Net Impairment Losses Recognized in Earnings (27.2 ) (15.2 ) (13.9 ) Other 15.8 17.7 14.0 Total Revenues $ 2,340.8 $ 2,196.6 $ 2,426.5
Segment Operating Profit	Segment Operating Profit, including a reconciliation to Income from Continuing Operations before Income Taxes, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Segment Operating Profit: Property & Casualty Insurance $ 23.7 $ 27.1 $ 139.6 Life & Health Insurance 109.7 141.9 136.9 Total Segment Operating Profit 133.4 169.0 276.5 Corporate and Other Operating Loss (48.9 ) (32.7 ) (47.3 ) Total Operating Profit 84.5 136.3 229.2 Net Realized Gains on Sales of Investments 52.1 39.1 99.1 Net Impairment Losses Recognized in Earnings (27.2 ) (15.2 ) (13.9 ) Loss from Early Extinguishment of Debt (9.1 ) — — Income from Continuing Operations before Income Taxes $ 100.3 $ 160.2 $ 314.4
Segment Net Income (Loss)	Segment Net Operating Income, including a reconciliation to Income from Continuing Operations, for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Segment Net Operating Income: Property & Casualty Insurance $ 26.7 $ 24.9 $ 100.6 Life & Health Insurance 71.7 91.8 89.3 Total Segment Net Operating Income 98.4 116.7 189.9 Corporate and Other Net Operating Loss (28.5 ) (19.6 ) (30.7 ) Consolidated Net Operating Income 69.9 97.1 159.2 Net Income (Loss) From: Net Realized Gains on Sales of Investments 33.9 25.4 64.4 Net Impairment Losses Recognized in Earnings (17.7 ) (9.9 ) (9.1 ) Loss from Early Extinguishment of Debt (5.9 ) — — Income from Continuing Operations $ 80.2 $ 112.6 $ 214.5
Segment Amortization of Deferred Policy Acquisition Costs	Amortization of Deferred Policy Acquisition Costs by Operating Segment for the years ended December 31, 2015 , 2014 and 2013 was: DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 213.1 $ 187.5 $ 207.2 Life & Health Insurance 44.3 47.9 46.7 Total Amortization $ 257.4 $ 235.4 $ 253.9

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures	Summary financial information included in Income from Discontinued Operations for the years ended December 31, 2015 , 2014 and 2013 is presented below. DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS 2015 2014 2013 Income from Discontinued Operations before Income Taxes: Change in Estimate of Retained Liabilities Arising from Discontinued Operations 8.6 3.0 4.9 Income Tax Expense (3.1 ) (1.1 ) (1.7 ) Income from Discontinued Operations $ 5.5 $ 1.9 $ 3.2 Income from Discontinued Operations Per Unrestricted Share: Basic $ 0.10 $ 0.04 $ 0.06 Diluted $ 0.10 $ 0.04 $ 0.06

Catastrophe Reinsurance (Tables

Catastrophe Reinsurance (Tables)	12 Months Ended
	Dec. 31, 2015
Reinsurance Disclosures [Abstract]
Reinsurance Retention Policy	Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2013 to December 31, 2013 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Property & Casualty Insurance Segment: Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 100.0 65.0 2nd Layer of Coverage 100.0 200.0 95.0 3rd Layer of Coverage 200.0 350.0 90.0 4th Layer of Coverage 350.0 450.0 50.0 Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2015 to December 31, 2015 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Property & Casualty Insurance Segment: Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 150.0 95.0 2nd Layer of Coverage 150.0 350.0 95.0 Coverage for the Property & Casualty Insurance segment’s primary catastrophe reinsurance program effective January 1, 2014 to December 31, 2014 is provided in various layers as presented below. DOLLARS IN MILLIONS Catastrophe Losses and LAE Percentage of Coverage In Excess of Up to Retained $ — $ 50.0 — % 1st Layer of Coverage 50.0 100.0 95.0 2nd Layer of Coverage 100.0 200.0 95.0 3rd Layer of Coverage 200.0 400.0 95.0
Catastrophe Reinsurance Premiums	Reinsurance premiums for the Company’s primary catastrophe reinsurance programs, the NC Program and the FHCF Program reduced earned premiums for the years ended December 31, 2015 , 2014 and 2013 by the following: DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 12.8 $ 17.6 $ 23.6 Life & Health Insurance 0.1 0.1 — Total Ceded Catastrophe Reinsurance Premiums $ 12.9 $ 17.7 $ 23.6
Catastrophe Losses and LAE, Net Reinsurance Recoveries	Catastrophe losses and LAE (including reserve development), net of reinsurance recoveries, for the years ended December 31, 2015 , 2014 and 2013 by business segment are presented below. DOLLARS IN MILLIONS 2015 2014 2013 Property & Casualty Insurance $ 56.6 $ 80.7 $ 34.6 Life & Health Insurance 3.9 3.1 1.6 Total Catastrophe Losses and LAE $ 60.5 $ 83.8 $ 36.2

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	The valuation of assets measured at fair value in the Company’s Consolidated Balance Sheet at December 31, 2015 is summarized below. DOLLARS IN MILLIONS Fair Value Measurements Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Fixed Maturities: U.S. Government and Government Agencies and Authorities $ 124.9 $ 195.7 $ — $ 320.6 States and Political Subdivisions — 1,622.6 — 1,622.6 Corporate Securities: Bonds and Notes — 2,376.5 436.3 2,812.8 Redeemable Preferred Stocks — — 3.8 3.8 Collateralized Loan Obligations — — 87.3 87.3 Other Mortgage- and Asset-backed — 1.4 3.8 5.2 Total Investments in Fixed Maturities 124.9 4,196.2 531.2 4,852.3 Equity Securities: Preferred Stocks: Finance, Insurance and Real Estate — 79.8 5.1 84.9 Other Industries — 6.2 12.8 19.0 Common Stocks: Finance, Insurance and Real Estate 16.6 6.6 — 23.2 Other Industries 0.6 0.8 12.1 13.5 Other Equity Interests: Exchange Traded Funds 177.1 — — 177.1 Limited Liability Companies and Limited Partnerships — — 205.5 205.5 Total Investments in Equity Securities 194.3 93.4 235.5 523.2 Fair Value Option Investments: Limited Liability Companies and Limited Partnerships Hedge Funds — — 164.5 164.5 Other Investments: Trading Securities 4.7 — — 4.7 Total $ 323.9 $ 4,289.6 $ 931.2 $ 5,544.7 At December 31, 2015 , the Company had unfunded commitments to invest an additional $107.6 million in certain limited liability investment companies and limited partnerships that will be included in Other Equity Interests when funded. NOTE 22. FAIR VALUE MEASUREMENTS (Continued) The valuation of assets measured at fair value in the Company’s Consolidated Balance Sheet at December 31, 2014 is summarized below. DOLLARS IN MILLIONS Fair Value Measurements Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) 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 Partnerships 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
Fair Value Inputs, Assets, Quantitative Information	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, 2015 . DOLLARS IN MILLIONS Unobservable Input Total Fair Value Range of Unobservable Inputs Weighted Average Yield Investment-grade Market Yield $ 98.7 2.6 % - 6.9 % 4.4 % Non-investment-grade: Senior Debt Market Yield 114.2 5.9 - 15.3 10.4 Junior Debt Market Yield 216.3 8.2 - 26.2 13.6 Collateralized Loan Obligations Market Yield 87.3 3.1 - 10.8 6.1 Other Various 14.7 Total Fixed Maturity Investments in Corporate Securities $ 531.2 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 Various 21.6 Total Fixed Maturity Investments in Corporate Securities $ 435.6
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the year ended December 31, 2014 is presented below. DOLLARS IN MILLIONS Fixed Maturities Equity Securities Total Corporate Bonds and Notes Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- Preferred and Common Stocks Other Equity Interests Fair Value Option Balance at Beginning of Year $ 364.1 $ 7.4 $ 44.7 $ 4.5 $ 32.1 $ 173.9 $ — $ 626.7 Total Gains (Losses): Included in Consolidated Statement of Income (3.4 ) — 0.2 0.1 1.1 2.7 (0.7 ) — Included in Other Comprehensive Income 5.1 (0.1 ) (1.0 ) 0.1 0.5 2.2 — 6.8 Purchases 201.4 — 26.1 — 8.9 53.0 58.0 347.4 Settlements (126.4 ) (0.6 ) — (0.8 ) (4.5 ) (39.8 ) — (172.1 ) Sales (79.0 ) — (5.6 ) — (2.2 ) (5.8 ) (4.0 ) (96.6 ) Transfers into Level 3 — — — — 3.6 — — 3.6 Transfers out of Level 3 (1.2 ) — — — (0.7 ) — — (1.9 ) Balance at End of Year $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 Information by security type pertaining to the changes in the fair value of the Company’s investments classified as Level 3 for the year ended December 31, 2015 is presented below. DOLLARS IN MILLIONS Fixed Maturities Equity Securities Corporate Redeemable Preferred Stocks Collateralized Loan Obligations Other Mortgage- and Asset- backed Preferred Other Equity Interests Fair Value Option Total Balance at Beginning of Year $ 360.6 $ 6.7 $ 64.4 $ 3.9 $ 38.8 $ 186.2 $ 53.3 $ 713.9 Total Gains (Losses): Included in Consolidated Statements of Income (9.4 ) (1.6 ) 0.6 — (2.6 ) (5.1 ) 0.2 (17.9 ) Included in Other Comprehensive Income (7.4 ) (0.7 ) (2.2 ) (0.1 ) 1.4 0.3 — (8.7 ) Purchases 241.5 — 39.5 1.3 8.1 60.0 111.0 461.4 Settlements (65.5 ) (0.6 ) (7.5 ) (0.1 ) (0.7 ) (40.0 ) — (114.4 ) Sales (73.6 ) — (7.5 ) (1.2 ) (5.0 ) — — (87.3 ) Transfers into Level 3 — — — — — 4.1 — 4.1 Transfers out of Level 3 (10.0 ) — — — (9.9 ) — — (19.9 ) Balance at End of Year $ 436.2 $ 3.8 $ 87.3 $ 3.8 $ 30.1 $ 205.5 $ 164.5 $ 931.2

Quarterly Financial Informati56

Quarterly Financial Information (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Financial Data [Abstract]
Schedule of Quarterly Financial Information	Three Months Ended (Unaudited) Year Ended DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS Mar 31, Jun 30, Sep 30, Dec 31, Dec 31, Revenues: Earned Premiums $ 431.3 $ 500.1 $ 536.7 $ 541.5 $ 2,009.6 Net Investment Income 70.6 76.7 75.9 79.4 302.6 Other Income 0.9 0.6 0.8 1.4 3.7 Net Realized Gains on Sales of Investments 3.4 34.0 5.3 9.4 52.1 Other-than-temporary Impairment Losses: Total Other-than-temporary Impairment Losses (7.0 ) (2.2 ) (3.3 ) (14.9 ) (27.4 ) Portion of Losses Recognized in Other Comprehensive Income — — — 0.2 0.2 Net Impairment Losses Recognized in Earnings (7.0 ) (2.2 ) (3.3 ) (14.7 ) (27.2 ) Total Revenues 499.2 609.2 615.4 617.0 2,340.8 Expenses: Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses 297.7 375.1 378.8 416.0 1,467.6 Insurance Expenses 144.9 162.1 161.1 177.0 645.1 Write-off of Long-lived Asset — 11.1 — — 11.1 Loss from Early Extinguishment of Debt 9.1 — — — 9.1 Interest and Other Expenses 29.7 26.6 25.7 25.6 107.6 Total Expenses 481.4 574.9 565.6 618.6 2,240.5 Income (Loss) from Continuing Operations before Income Taxes 17.8 34.3 49.8 (1.6 ) 100.3 Income Tax Benefit (Expense) (4.3 ) (6.9 ) (11.8 ) 2.9 (20.1 ) Income from Continuing Operations 13.5 27.4 38.0 1.3 80.2 Income (Loss) from Discontinued Operations — 2.3 (0.1 ) 3.3 5.5 Net Income $ 13.5 $ 29.7 $ 37.9 $ 4.6 $ 85.7 Income from Continuing Operations Per Unrestricted Share: Basic $ 0.26 $ 0.53 $ 0.73 $ 0.03 $ 1.55 Diluted $ 0.26 $ 0.53 $ 0.73 $ 0.03 $ 1.55 Net Income Per Unrestricted Share: Basic $ 0.26 $ 0.57 $ 0.73 $ 0.09 $ 1.65 Diluted $ 0.26 $ 0.57 $ 0.73 $ 0.09 $ 1.65 Dividends Paid to Shareholders Per Share $ 0.24 $ 0.24 $ 0.24 $ 0.24 $ 0.96 The sum of quarterly per share amounts does not equal per share amounts for the year due to differences in weighted-average shares and/or equivalent shares outstanding for each of the periods presented. NOTE 25. QUARTERLY FINANCIAL INFORMATION (Unaudited) (Continued) Three Months Ended (Unaudited) Year Ended DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS Mar 31, Jun 30, Sep 30, Dec 31, Dec 31, Revenues: Earned Premiums $ 477.6 $ 470.3 $ 462.8 $ 451.5 $ 1,862.2 Net Investment Income 71.1 72.6 72.3 93.1 309.1 Other Income 0.1 0.2 0.5 0.6 1.4 Net Realized Gains on Sales of Investments 6.6 3.5 8.0 21.0 39.1 Other-than-temporary Impairment Losses: Total Other-than-temporary Impairment Losses (0.8 ) (4.1 ) (3.8 ) (6.5 ) (15.2 ) Portion of Losses Recognized in Other Comprehensive Income — — — — — Net Impairment Losses Recognized in Earnings (0.8 ) (4.1 ) (3.8 ) (6.5 ) (15.2 ) Total Revenues 554.6 542.5 539.8 559.7 2,196.6 Expenses: Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses 327.9 347.5 300.5 285.8 1,261.7 Insurance Expenses 152.1 161.3 158.6 156.4 628.4 Write-off Long-lived Asset — — 54.6 — 54.6 Interest and Other Expenses 22.7 22.5 22.1 24.4 91.7 Total Expenses 502.7 531.3 535.8 466.6 2,036.4 Income from Continuing Operations before Income Taxes 51.9 11.2 4.0 93.1 160.2 Income Tax Benefit (Expense) (16.7 ) (1.9 ) 0.8 (29.8 ) (47.6 ) Income from Continuing Operations 35.2 9.3 4.8 63.3 112.6 Income (Loss) from Discontinued Operations (0.1 ) — (0.1 ) 2.1 1.9 Net Income $ 35.1 $ 9.3 $ 4.7 $ 65.4 $ 114.5 Income from Continuing Operations Per Unrestricted Share: Basic $ 0.63 $ 0.17 $ 0.09 $ 1.20 $ 2.08 Diluted $ 0.63 $ 0.17 $ 0.09 $ 1.20 $ 2.08 Net Income Per Unrestricted Share: Basic $ 0.63 $ 0.17 $ 0.09 $ 1.24 $ 2.12 Diluted $ 0.63 $ 0.17 $ 0.09 $ 1.24 $ 2.12 Dividends Paid to Shareholders Per Share $ 0.24 $ 0.24 $ 0.24 $ 0.24 $ 0.96 The sum of quarterly per share amounts does not equal per share amounts for the year due to differences in weighted-average shares and/or equivalent shares outstanding for each of the periods presented.

Summary Of Accounting Policie57

Summary Of Accounting Policies And Accounting Changes (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounting Policy Disclosures [Line Items]
Interest rate assumption, minimum									3.00%
Interest rate assumption, maximum									7.00%
Write-off of long-lived asset	$ 0	$ 0	$ 11.1	$ 0	$ 0	$ 54.6	$ 0	$ 0	$ 11.1	$ 54.6	$ 0
Charge for goodwill impairment included in insurance expenses										1.4
Amortization expense									9
Life Insurance Product Line [Member]
Accounting Policy Disclosures [Line Items]
Present value of the future profits embedded in life insurance in force	32.5				36.5				32.5	36.5
Expected Amortization Expense of Ending Present Value of Future Insurance Profits, Net of Interest Accrued [Abstract]
2,016									3.4
2,017									3.2
2,018									2.8
2,019									2.4
2,020									2
Property and Casualty Insurance [Member]
Accounting Policy Disclosures [Line Items]
Present value of the future profits embedded in life insurance in force	11.2				$ 13.3				11.2	$ 13.3
Broker Relationships [Member]
Accounting Policy Disclosures [Line Items]
Assets acquired	$ 18.1								$ 18.1
Useful life of intangibles acquired									15 years

Acquisition of Business (Detail

Acquisition of Business (Details) - USD ($) $ in Millions	May. 07, 2015	Apr. 30, 2015	Dec. 31, 2015
Business Combinations [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Payments to Acquire Businesses, Gross		$ 71
Business Combination, Cash Held in Escrow, Indemnification Obligation			$ 17.5
Capital Contributed to Subsidiary	$ 75

Acquisition of Business Assets

Acquisition of Business Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Dec. 31, 2015	Apr. 30, 2015
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		$ 71
Business Combination, Indemnification Assets, Amount as of Acquisition Date		5.4
Business Combination, Indemnification Asset	$ 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
Finite-Lived Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 22	32.6
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
Liabilities for 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 Intangi

Acquisition of Business Intangible Assets Acquired (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Apr. 30, 2015
Broker Relationships [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Useful life of intangibles acquired	15 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 18.1	$ 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	0.2	9.2
Other Intangible Assets [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	3.7	4.5
Finite-Lived Intangible Assets [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 22	$ 32.6
Minimum [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Useful life of intangibles acquired	2 years
Maximum [Member]
Schedule of Intangible Assets Acquired by Class [Line Items]
Useful life of intangibles acquired	5 years

Investments - Amortized Cost an

Investments - Amortized Cost and Estimated Fair Value of investments (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 4,560,700,000	$ 4,341,700,000
Gross Unrealized Gains	341,600,000	455,600,000
Gross Unrealized Losses	(50,000,000)	(19,700,000)
Fair Value	4,852,300,000	4,777,600,000
Accrued Expenses and Other Liabilities	472,400,000	409,600,000
Other Receivables	193,200,000	187,000,000
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
Investments in Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Accrued Expenses and Other Liabilities	5,600,000	0
Other Receivables		0
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	298,000,000	315,200,000
Gross Unrealized Gains	26,200,000	32,300,000
Gross Unrealized Losses	(3,600,000)	(2,000,000)
Fair Value	320,600,000	345,500,000
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,513,700,000	1,352,500,000
Gross Unrealized Gains	111,600,000	126,400,000
Gross Unrealized Losses	(2,700,000)	(1,800,000)
Fair Value	1,622,600,000	1,477,100,000
Corporate Bonds and Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,651,500,000	2,599,300,000
Gross Unrealized Gains	202,000,000	294,300,000
Gross Unrealized Losses	(40,700,000)	(15,100,000)
Fair Value	2,812,800,000	2,878,500,000
Redeemable Preferred Stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,700,000	5,900,000
Gross Unrealized Gains	100,000	800,000
Gross Unrealized Losses	0	0
Fair Value	3,800,000	6,700,000
Collateralized Loan Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	90,000,000	64,900,000
Gross Unrealized Gains	300,000	300,000
Gross Unrealized Losses	(3,000,000)	(800,000)
Fair Value	87,300,000	64,400,000
Other Mortgage and Asset-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,800,000	3,900,000
Gross Unrealized Gains	1,400,000	1,500,000
Gross Unrealized Losses	0	0
Fair Value	5,200,000	5,400,000
Collateralized Debt Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	3,800,000	3,900,000
Non-governmental Residential Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	1,300,000	1,300,000
Other Asset Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 100,000	$ 200,000

Investments - Schedule of Contr

Investments - Schedule of Contractual Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Due in One Year or Less, Amortized Cost	$ 52.4
Due in One Year or Less, Fair Value	54.6
Due after One Year to Five Years, Amortized Cost	806.8
Due after One Year to Five Years, Fair Value	840.2
Due after Five Years to Ten Years, Amortized Cost	1,475.3
Due after Five Years to Ten Years, Fair Value	1,507.1
Due after Ten Years, Amortized Cost	2,009.5
Due after Ten Years, Fair Value	2,227.9
Asset-backed Securities Not Due at a Single Maturity Date, Amortized Cost	216.7
Asset-backed Securities Not Due at a Single Maturity Date, Fair Value	222.5
Amortized Cost	4,560.7	$ 4,341.7
Investments in Fixed Maturities, Fair Value	4,852.3	$ 4,777.6
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Asset-backed Securities Not Due at a Single Maturity Date, Fair Value	107
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Schedule of Available-for-sale Securities [Line Items]
Asset-backed Securities Not Due at a Single Maturity Date, Fair Value	17.1
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Schedule of Available-for-sale Securities [Line Items]
Asset-backed Securities Not Due at a Single Maturity Date, Fair Value	6
Other Non-Governmental Issuers [Member]
Schedule of Available-for-sale Securities [Line Items]
Asset-backed Securities Not Due at a Single Maturity Date, Fair Value	$ 92.4

Investments - Unrealized Gains

Investments - Unrealized Gains and Gross Unrealized Losses in Investment in Equity Securities (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	$ 486.9	$ 561.5
Gross Unrealized Gains	43.3	75.7
Gross Unrealized Losses	(7)	(5)
Equity Securities at Fair Value	523.2	632.2
Exchange Traded Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	179.7	195.2
Gross Unrealized Gains	1.1	8.2
Gross Unrealized Losses	(3.7)	(0.7)
Equity Securities at Fair Value	177.1	202.7
Limited Liability Companies and Limited Partnerships [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	181	160.3
Gross Unrealized Gains	25	27.7
Gross Unrealized Losses	(0.5)	(1.8)
Equity Securities at Fair Value	205.5	186.2
Finance, Insurance and Real Estate [Member] | Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	80.8	85.5
Gross Unrealized Gains	4.9	5.2
Gross Unrealized Losses	(0.8)	(1)
Equity Securities at Fair Value	84.9	89.7
Finance, Insurance and Real Estate [Member] | Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	18.9	34.3
Gross Unrealized Gains	5.3	6.2
Gross Unrealized Losses	(1)	0
Equity Securities at Fair Value	23.2	40.5
All Industries Other than Finance, Insurance and Real Estate [Member] | Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	17.1	16.3
Gross Unrealized Gains	2.7	3.5
Gross Unrealized Losses	(0.8)	0
Equity Securities at Fair Value	19	19.8
All Industries Other than Finance, Insurance and Real Estate [Member] | Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost	9.4
Gross Unrealized Gains	4.3
Gross Unrealized Losses	(0.2)
Equity Securities at Fair Value	$ 13.5
Manufacturing [Member] | Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost		43.4
Gross Unrealized Gains		14.9
Gross Unrealized Losses		(1.1)
Equity Securities at Fair Value		57.2
All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Common Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity Securities at Cost		26.5
Gross Unrealized Gains		10
Gross Unrealized Losses		(0.4)
Equity Securities at Fair Value		$ 36.1

Investments - Aging of Unrealiz

Investments - Aging of Unrealized Losses on Investments in Fixed Maturities and Equity Securities (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Unsettled purchases or sales of Investments in fixed maturities	$ 472,400,000	$ 409,600,000
Other receivables	193,200,000	187,000,000
Fair Value
Less Than 12 Months	1,195,800,000	423,600,000
12 Months or Longer	172,000,000	580,700,000
Total	1,367,800,000	1,004,300,000
Unrealized Losses
Less Than 12 Months	(39,400,000)	(9,700,000)
12 Months or Longer	(17,700,000)	(15,000,000)
Total	(57,100,000)	(24,700,000)
Unrealized losses related to securities for which the Company has recognized credit losses in earnings	200,000	0
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
US Government and Government Agencies and Authorities [Member]
Fair Value
Less Than 12 Months	56,600,000	24,900,000
12 Months or Longer	24,100,000	55,500,000
Total	80,700,000	80,400,000
Unrealized Losses
Less Than 12 Months	(1,600,000)	(700,000)
12 Months or Longer	(2,000,000)	(1,300,000)
Total	(3,600,000)	(2,000,000)
States and Political Subdivisions [Member]
Fair Value
Less Than 12 Months	131,000,000	1,000,000
12 Months or Longer	900,000	126,300,000
Total	131,900,000	127,300,000
Unrealized Losses
Less Than 12 Months	(2,600,000)	0
12 Months or Longer	(100,000)	(1,800,000)
Total	(2,700,000)	(1,800,000)
Corporate Bonds and Notes [Member]
Fair Value
Less Than 12 Months	783,800,000	250,400,000
12 Months or Longer	133,600,000	360,500,000
Total	917,400,000	610,900,000
Unrealized Losses
Less Than 12 Months	(26,000,000)	(5,100,000)
12 Months or Longer	(14,700,000)	(10,000,000)
Total	(40,700,000)	(15,100,000)
Redeemable Preferred Stocks [Member]
Fair Value
Less Than 12 Months		0
12 Months or Longer		0
Total		0
Unrealized Losses
Less Than 12 Months		0
12 Months or Longer		0
Total		0
Collateralized Loan Obligations [Member]
Fair Value
Less Than 12 Months	57,400,000	51,200,000
12 Months or Longer	800,000	3,400,000
Total	58,200,000	54,600,000
Unrealized Losses
Less Than 12 Months	(2,900,000)	(700,000)
12 Months or Longer	(100,000)	(100,000)
Total	(3,000,000)	(800,000)
Other Mortgage and Asset-backed Securities [Member]
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	300,000	400,000
Total	300,000	400,000
Unrealized Losses
Less Than 12 Months	0	0
12 Months or Longer	0	0
Total	0	0
Investments in Fixed Maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Unsettled purchases or sales of Investments in fixed maturities	5,600,000	0
Other receivables		0
Fair Value
Less Than 12 Months	1,028,800,000	327,500,000
12 Months or Longer	159,700,000	546,100,000
Total	1,188,500,000	873,600,000
Unrealized Losses
Less Than 12 Months	(33,100,000)	(6,500,000)
12 Months or Longer	(16,900,000)	(13,200,000)
Total	(50,000,000)	(19,700,000)
Investments in Fixed Maturities [Member] | External Credit Rating, Investment Grade [Member]
Unrealized Losses
Total	(33,500,000)	(14,100,000)
Investments in Fixed Maturities [Member] | External Credit Rating, Non Investment Grade [Member]
Unrealized Losses
Total	$ (16,500,000)	$ (5,600,000)
Percentage of unrealized loss position to amortized cost basis of available for sale security average	8.10%	4.00%
Preferred Stock [Member] | Finance, Insurance and Real Estate [Member]
Fair Value
Less Than 12 Months	$ 2,700,000	$ 7,500,000
12 Months or Longer	12,300,000	12,100,000
Total	15,000,000	19,600,000
Unrealized Losses
Less Than 12 Months	0	(100,000)
12 Months or Longer	(800,000)	(900,000)
Total	(800,000)	(1,000,000)
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [Member]
Fair Value
Less Than 12 Months	7,300,000	0
12 Months or Longer	0	500,000
Total	7,300,000	500,000
Unrealized Losses
Less Than 12 Months	(800,000)	0
12 Months or Longer	0	0
Total	(800,000)	0
Common Stock [Member] | Finance, Insurance and Real Estate [Member]
Fair Value
Less Than 12 Months	16,300,000
12 Months or Longer	0
Total	16,300,000
Unrealized Losses
Less Than 12 Months	(1,000,000)
12 Months or Longer	0
Total	(1,000,000)
Common Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [Member]
Fair Value
Less Than 12 Months	2,800,000
12 Months or Longer	0
Total	2,800,000
Unrealized Losses
Less Than 12 Months	(300,000)
12 Months or Longer	0
Total	(300,000)
Common Stock [Member] | Manufacturing [Member]
Fair Value
Less Than 12 Months		15,100,000
12 Months or Longer		0
Total		15,100,000
Unrealized Losses
Less Than 12 Months		(1,100,000)
12 Months or Longer		0
Total		(1,100,000)
Common Stock [Member] | All Industries Other than Manufacturing [Member]
Fair Value
Less Than 12 Months		4,200,000
12 Months or Longer		1,000,000
Total		5,200,000
Unrealized Losses
Less Than 12 Months		(400,000)
12 Months or Longer		0
Total		(400,000)
Exchange Traded Funds [Member]
Fair Value
Less Than 12 Months	135,200,000	14,900,000
12 Months or Longer	0	14,400,000
Total	135,200,000	29,300,000
Unrealized Losses
Less Than 12 Months	(3,700,000)	(100,000)
12 Months or Longer	0	(600,000)
Total	(3,700,000)	(700,000)
Limited Liability Companies and Limited Partnerships [Member]
Fair Value
Less Than 12 Months	2,700,000	54,400,000
12 Months or Longer	0	6,600,000
Total	2,700,000	61,000,000
Unrealized Losses
Less Than 12 Months	(500,000)	(1,500,000)
12 Months or Longer	0	(300,000)
Total	(500,000)	(1,800,000)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Unsettled purchases or sales of Investments in fixed maturities	0	0
Other receivables	0	0
Fair Value
Less Than 12 Months	167,000,000	96,100,000
12 Months or Longer	12,300,000	34,600,000
Total	179,300,000	130,700,000
Unrealized Losses
Less Than 12 Months	(6,300,000)	(3,200,000)
12 Months or Longer	(800,000)	(1,800,000)
Total	$ (7,100,000)	$ (5,000,000)

Investments - OTTI losses Recog

Investments - OTTI losses Recognized in Accumulated Other Comprehensive Income (Details) - Fixed Maturities [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at Beginning of Year	$ 5.3	$ 9.9	$ 4.6
Additions for Previously Unrecognized OTTI Credit Losses	0.2	2.4	1.8
Increases to Previously Recognized OTTI Credit Losses	0	0.6	7.3
Reduction due to Intent to Sell Investments	(0.4)	(2.4)	(3.2)
Reductions for Investments Sold During Period	0	(5.2)	(0.6)
Balance at End of Year	$ 5.1	$ 5.3	$ 9.9

Investments - Equity Method LLC

Investments - Equity Method LLCs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]
Equity Method Investment, Summarized Financial Information, Assets	$ 3,801.7	$ 3,349.7
Equity Method Investment, Summarized Financial Information, Liabilities	879.1	711.5
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	159.6	96.2	$ 181.1
Equity method limited liability investments at cost plus cumulative undistributed earnings	190.6	$ 184.8
Outstanding commitments to fund equity method limited liability investments	$ 58.8

Investments - Other Investments

Investments - Other Investments Carrying Values (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Loans to Policyholders at Unpaid Principal	$ 288.4	$ 283.4
Real Estate at Depreciated Cost	149.8	160.9
Trading Securities at Fair Value	4.7	4.9
Other	0.3	0.4
Total Investments	$ 443.2	$ 449.6

Goodwill (Details)

Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)	$ 11.2
Goodwill [Roll Forward]
Goodwill	323	$ 311.8
Property and Casualty Insurance [Member]
Goodwill [Roll Forward]
Goodwill	103.6	92.4
Life and Health Insurance [Member]
Goodwill [Roll Forward]
Goodwill	$ 219.4	$ 219.4

Property and Casualty Insuran69

Property and Casualty Insurance Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Beginning Property and Casualty Insurance Reserves: [Abstract]
Gross of Reinsurance at Beginning of Year	$ 733.9	$ 843.5	$ 970.6
Less Reinsurance Recoverables at Beginning of Year	54.9	63.4	66.2
Property and Casualty Insurance Reserves, Net of Reinsurance at Beginning of Year	679	780.1	904.4
Property and Casualty Insurance Reserves Acquired, Net of Reinsurance and Indemnification					$ 125.4	$ 0	$ 0
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(20.1)	(57.1)	(64.6)
Total Incurred Losses and LAE	1,103.2	908.3	991.9
Paid Losses and LAE related to:
Prior Years - Paid Losses and LAE	373.6	369.6	434
Total Paid Losses and LAE	1,096.8	1,009.4	1,116.2
Property and Casualty Insurance Reserves, Net of Reinsurance and Indemnification at End of Year	679	780.1	904.4	$ 810.8	$ 679	$ 780.1	$ 904.4
Plus Reinsurance and Indemnification Recoverables at End of Year	52	54.9	63.4
Property and Casualty Insurance Reserves, Gross of Reinsurance at End of Year	862.8	733.9	843.5
Personal Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(13.3)	(50.9)	(56.8)
Property and Casualty, Personal Insurance Product Line, Excluding Alliance United [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(21)
Commercial Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(6.8)	(6.2)	(7.8)
Continuing Operations [Member]
Incurred Losses and LAE related to:
Current Year - Incurred Losses and LAE	1,123.3	965.4	1,056.5
Prior Years - Incurred Losses and LAE	(11.5)	(53.5)	59.8
Paid Losses and LAE related to:
Current Year - Paid Losses and LAE	723.2	639.8	682.2
Prior Years - Paid Losses and LAE	366.2	360.4	421.7
Continuing Operations [Member] | Commercial Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	1.8	(2.6)	(3)
Discontinued Operations [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(8.6)	(3.6)	4.8
Paid Losses and LAE related to:
Prior Years - Paid Losses and LAE	7.4	9.2	12.3
Discontinued Operations [Member] | Commercial Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(8.6)	(3.6)	(4.8)
Personal Automobile [Member] | Personal Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(1.8)	(31.6)	(30.1)
Homeowners [Member] | Personal Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(10.8)	(14.8)	(20.1)
Other Personal Lines [Member] | Personal Lines [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	(0.7)	$ (4.5)	$ (6.6)
Alliance United [Member]
Incurred Losses and LAE related to:
Prior Years - Incurred Losses and LAE	$ 7.7

Debt - Debt Outstanding (Detail

Debt - Debt Outstanding (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Notes Payable	$ 750.6	$ 752.1
Senior Notes [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
Debt Instrument [Line Items]
Notes Payable	0	249.5
Senior Notes [Member] | Senior Notes, 6% Due May 15, 2017 [Member]
Debt Instrument [Line Items]
Notes Payable	359.1	358.5
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Debt Instrument [Line Items]
Notes Payable	247.4	0
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Debt Instrument [Line Items]
Notes Payable	$ 144.1	$ 144.1

Debt - Interest Expense on Debt

Debt - Interest Expense on Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Interest Costs Incurred	$ 47.3	$ 47.9	$ 39.2
Capitalization of Interest	(0.8)	(1)	(0.9)
Total Interest Expense	46.5	46.9	38.3
Senior Notes [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	3.7	15.5	15.4
Senior Notes [Member] | Senior Notes, 6% Due May 15, 2017 [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	22.2	22.2	22.2
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	9.5	0	0
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	11.1	9.4	0
Mortgage Note Payable [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	0	0	0.2
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	0.8	0.8	1.4
Federal Home Loan Bank of Chicago [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	0	0	0
Federal Home Loan Bank of Dallas [Member]
Debt Instrument [Line Items]
Interest Costs Incurred	$ 0	$ 0	$ 0

Debt - Interest Paid on Debt (D

Debt - Interest Paid on Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Interest Paid	$ 44.1	$ 45.7	$ 37.7
Senior Notes [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
Debt Instrument [Line Items]
Interest Paid	4.8	15	15
Senior Notes [Member] | Senior Notes, 6% Due May 15, 2017 [Member]
Debt Instrument [Line Items]
Interest Paid	21.6	21.6	21.6
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Debt Instrument [Line Items]
Interest Paid	5.2	0	0
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Debt Instrument [Line Items]
Interest Paid	11.1	8.5	0
Mortgage Note Payable [Member]
Debt Instrument [Line Items]
Interest Paid	0	0	0.3
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest Paid	1.4	0.6	0.8
Federal Home Loan Bank of Chicago [Member]
Debt Instrument [Line Items]
Interest Paid	0	0	0
Federal Home Loan Bank of Dallas [Member]
Debt Instrument [Line Items]
Interest Paid	$ 0	$ 0	$ 0

Debt (Details)

Debt (Details) - USD ($)	Feb. 24, 2015	Feb. 27, 2014	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 02, 2015
Debt Instrument [Line Items]
Proceeds from Issuances of Debt							$ 345,800,000	$ 144,000,000	$ 0
Repayments of Debt							357,300,000	0	5,500,000
Gains (Losses) on Extinguishment of Debt			$ 0	$ 0	$ 0	$ (9,100,000)	$ (9,100,000)	0	$ 0
Notes Payable under Revolving Credit Agreement | 2016 Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility, length of agreement							4 years
Line of credit, outstanding			0				$ 0	0
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount		$ 150,000,000
Stated interest rate, percentage		7.375%
Issuance costs		$ 144,000,000
Interest rate, effective percentage		7.69%
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 250,000,000
Stated interest rate, percentage	4.35%
Issuance costs	$ 247,300,000
Interest rate, effective percentage	4.49%
Senior Notes [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 250,000,000
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 Chicago [Member]
Debt Instrument [Line Items]
Proceeds from Issuances of Debt							21,000,000
Repayments of Debt							21,000,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances			0				0	0
Federal Home Loan Bank of Dallas [Member]
Debt Instrument [Line Items]
Proceeds from Issuances of Debt							77,500,000
Repayments of Debt							77,500,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances			$ 0				$ 0	$ 0

Leases (Details)

Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leases, Rent Expense, Net [Abstract]
Minimum Rental Expense	$ 20.7	$ 21.5	$ 28.3
Less: Sublease Rental Income	(1.7)	(1.3)	(1.8)
Net Rental Expense	19	$ 20.2	$ 26.5
Future Minimum Lease Payments, Capital and Operating Leases
Capital Leases, Future Minimum Payments Due, 2016	2.4
Capital Leases, Future Minimum Payments Due, 2017	0.7
Capital Leases, Future Minimum Payments Due, 2018	0.1
Capital Leases, Future Minimum Payments Due, 2019	0
Capital Leases, Future Minimum Payments Due, 2020	0
Capital Leases, Future Minimum Payments Due, 2021 and Thereafter	0
Capital Leases, Total Future Payments	3.2
Less: Imputed Interest	(0.2)
Present Value of Minimum Capital Lease Payments	3
Operating Leases, Future Minimum Payments Due, 2016	17.8
Operating Leases, Future Minimum Payments Due, 2017	16.5
Operating Leases, Future Minimum Payments Due, 2018	11.9
Operating Leases, Future Minimum Payments Due, 2019	8.6
Operating Leases, Future Minimum Payments Due, 2020	6.3
Operating Leases, Future Minimum Payments Due, 2021 and Thereafter	14.2
Operating Leases, Total Future Payments	75.3
Total of minimum rentals to be received in the future under non-cancelable subleases	$ 3.9
Office Space [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Operating Lease, Term	1 year
Office Space [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Operating Lease, Term	10 years
Equipment [Member] | Minimum [Member]
Operating Leased Assets [Line Items]
Operating Lease, Term	1 year
Equipment [Member] | Maximum [Member]
Operating Leased Assets [Line Items]
Operating Lease, Term	5 years

Shareholders' Equity (Details)

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Capitalization, Equity [Line Items]
Preferred Stock, shares authorized	20,000,000
Par value of preferred stock (per share)	$ 0.1
Common stock, shares authorized	100,000,000	100,000,000
Par value of common stock (per share)	$ 0.1	$ 0.1
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares outstanding	51,326,751	52,418,246
Stock Repurchased and retired during period, Shares	(1,200,000)	(3,200,000)	(3,000,000)
Repurchases of common stock	$ (43.5)	$ (115.5)	$ (100.4)
Company Action Level RBC, as Percentage of Authorized Control Level RBC	200.00%
Dividends paid	$ 49.7	51.8	54.9
Amount available for dividend payment	287
Kemper's Insurance Subsidiaries [Member]
Schedule of Capitalization, Equity [Line Items]
Cash dividends paid by Kemper's Insurance Subsidiaries to Kemper	285
Amount available for dividend payments	168
Amount of restricted net assets for consolidated and unconsolidated subsidiaries	2,400
Life and Health [Member]
Schedule of Capitalization, Equity [Line Items]
Statutory capital and surplus for the Company’s life and health insurance subsidiaries	394.6	437.3
Statutory net income for the Company’s life and health insurance subsidiaries	62.8	100.7	81.5
Statutory capital and surplus required	134.4
Property and Casualty Insurance [Member]
Schedule of Capitalization, Equity [Line Items]
Statutory capital and surplus for the Company’s life and health insurance subsidiaries	957.7	947.5
Statutory net income for the Company’s life and health insurance subsidiaries	58.9	$ 85.7	$ 138.8
Statutory capital and surplus required	$ 335.9
Restricted Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Common stock, shares outstanding	80,848	163,720

Long-term Equity-based Compen76

Long-term Equity-based Compensation (Details) - USD ($) $ in Millions	May. 02, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized		10,000,000
Shares available for grant		7,636,921
Share-based compensation expense		$ 6.5	$ 6.4	$ 5.5
Total compensation cost not yet recognized		$ 5.8
Total compensation cost not yet recognized, period for recognition		1 year 10 months 24 days
Initial grant for non-employee director, shares		4,000
Automatic annual grant, non-employee directors, options		4,000
Annual awards of deferred stock units to be issued to each non-employee director	500
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 (shares)		538,500
Options Granted Prior to May 1, 2013 [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Automatic annual grant, non-employee directors, options, vesting period		1 year
Automatic annual grant, non-employee directors, options, expiration date		10 years

Long-term Equity-based Compen77

Long-term Equity-based Compensation - Black-Scholes Pricing Model For Options (Details) - Stock Options [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Volatility Rate, Minimum	21.31%	25.76%	39.10%
Expected Volatility Rate, Maximum	41.65%	44.43%	48.23%
Risk Free Interest Rate, Minimum	1.08%	1.07%	0.62%
Risk Free Interest Rate, Maximum	1.96%	2.14%	1.38%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Dividend Yield Rate	2.37%	2.53%	2.83%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Dividend Yield Rate	2.62%	2.60%	3.00%
Employee [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term	4 years	4 years	4 years
Employee [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term	7 years	7 years	7 years
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term	5 years 6 months	6 years	6 years

Long-term Equity-based Compen78

Long-term Equity-based Compensation - Option and SAR Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares Subject to Options at Beginning of Year	2,265,711
Weighted Average Exercise Price Per Share at Beginning of Year	$ 39.74
Grants in Period	397,532
Grants in Period, Weighted Average Exercise Price	$ 37.51
Exercises in Period	(629,625)
Exercises in Period, Weighted Average Exercise Price	$ 31.84
Forfeitures and Expirations in Period	(605,461)
Forfeitures and Expirations in Period, Weighted Average Exercise Price	$ 46.45
Shares Subject to Options at End of Year	1,428,157	2,265,711
Weighted Average Exercise Price Per Share at End of Year	$ 39.75	$ 39.74
Outstanding at End of Year, Weighted Average Remaining Contractual Term	5 years 4 months 24 days
Outstanding at End of Year, Intrinsic Value	$ 2.1
Vested and Expected to Vest, Outstanding at End of Year	1,393,530
Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	$ 39.84
Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	5 years 3 months 18 days
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	$ 2
Vested and Expected to Vest, Exercisable at End of Year	978,437
Vested and Expected to Vest, Exercisable at End of Year, Weighted Average Exercise Price	$ 41.02
Vested and Expected to Vest, Exercisable at End of Year, Weighted Average Remaining Contractual Term	3 years 9 months 18 days
Vested and Expected to Vest, Exercisable at End of Year, Aggregate Intrinsic Value	$ 1.6
Weighted-average grant-date fair values (per share)	$ 7.85	$ 10.49	$ 10.20
Total intrinsic value	$ 4.6	$ 0.4	$ 4.1
Cash received from exercises of Tandem Awards	3.9	0.5	1.7
Total tax benefit realized for tax deductions from exercise of Tandem Awards	$ 1.6	$ 0.1	$ 1.4

Long-term Equity-based Compen79

Long-term Equity-based Compensation - Schedule of Outstanding Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Subject to Awards	1,428,157	2,265,711
Weighted- average Exercise Price Per Share ($)	$ 39.75	$ 39.74
Weighted- average Remaining Contractual Life (in Years)	5 years 4 months 24 days
Range of Exercise Prices $15.01 - $20.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	$ 15.01
Range of Exercise Prices, Upper Range Limit	$ 20
Shares Subject to Awards	4,000
Weighted- average Exercise Price Per Share ($)	$ 16.48
Weighted- average Remaining Contractual Life (in Years)	3 years 4 months 6 days
Shares Subject to Awards	4,000
Weighted- average Exercise Price Per Share ($)	$ 16.48
Range of Exercise Prices $20.01 - $25.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	20.01
Range of Exercise Prices, Upper Range Limit	$ 25
Shares Subject to Awards	14,500
Weighted- average Exercise Price Per Share ($)	$ 23.47
Weighted- average Remaining Contractual Life (in Years)	4 years 26 days
Shares Subject to Awards	14,500
Weighted- average Exercise Price Per Share ($)	$ 23.47
Range of Exercise Prices $25.01 - $30.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	25.01
Range of Exercise Prices, Upper Range Limit	$ 30
Shares Subject to Awards	75,750
Weighted- average Exercise Price Per Share ($)	$ 28.67
Weighted- average Remaining Contractual Life (in Years)	5 years 5 months 16 days
Shares Subject to Awards	75,750
Weighted- average Exercise Price Per Share ($)	$ 28.67
Range of Exercise Prices $30.01 - $35.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	30.01
Range of Exercise Prices, Upper Range Limit	$ 35
Shares Subject to Awards	173,625
Weighted- average Exercise Price Per Share ($)	$ 33.20
Weighted- average Remaining Contractual Life (in Years)	7 years 1 month 10 days
Shares Subject to Awards	131,998
Weighted- average Exercise Price Per Share ($)	$ 33.12
Range of Exercise Prices $35.01 - $40.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	35.01
Range of Exercise Prices, Upper Range Limit	$ 40
Shares Subject to Awards	600,000
Weighted- average Exercise Price Per Share ($)	$ 36.55
Weighted- average Remaining Contractual Life (in Years)	7 years 8 months 23 days
Shares Subject to Awards	290,187
Weighted- average Exercise Price Per Share ($)	$ 36.83
Range of Exercise Prices $40.01 - $45.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	40.01
Range of Exercise Prices, Upper Range Limit	$ 45
Shares Subject to Awards	103,782
Weighted- average Exercise Price Per Share ($)	$ 40.70
Weighted- average Remaining Contractual Life (in Years)	9 years 10 months 21 days
Shares Subject to Awards	5,502
Weighted- average Exercise Price Per Share ($)	$ 40.70
Range of Exercise Prices $45.01 - $50.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	45.01
Range of Exercise Prices, Upper Range Limit	$ 50
Shares Subject to Awards	456,500
Weighted- average Exercise Price Per Share ($)	$ 48.80
Weighted- average Remaining Contractual Life (in Years)	7 months 2 days
Shares Subject to Awards	456,500
Weighted- average Exercise Price Per Share ($)	$ 48.80
Range of Exercise Prices $15.01 - $50.00
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower Range Limit	15.01
Range of Exercise Prices, Upper Range Limit	$ 50
Shares Subject to Awards	1,428,157
Weighted- average Exercise Price Per Share ($)	$ 39.75
Weighted- average Remaining Contractual Life (in Years)	5 years 4 months 10 days
Shares Subject to Awards	978,437
Weighted- average Exercise Price Per Share ($)	$ 41.02

Long-term Equity-based Compen80

Long-term Equity-based Compensation - Activity Related to Nonvested Restricted Stock (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 04, 2016	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of DSUs that vested during the years					$ 0.1	$ 0.2	$ 0.1
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested in Period, Total Fair Value					1.4	3.6	4.1
Income tax benefit from share-based compensation					$ 0.5	$ 1.2	$ 1.4
Time Vested Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested Balance at Beginning of Year, Restricted Shares					53,095
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share)					$ 32.42
Grants in Period					0
Grants in Period, Weighted Average Grant Date Fair Value (per share)					$ 0
Vested in Period					(18,733)
Vested in Period, Weighted Average Grant Date Fair Value (per share)					$ 31.09
Forfeited in Period					(4,914)
Forfeited in Period, Weighted Average Grant Date Fair Value (per share)					$ 29.48
Nonvested Balance at End of Year, Restricted Shares					29,448	53,095
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share)					$ 33.77	$ 32.42
Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period					3 years
Nonvested Balance at Beginning of Year, Restricted Shares					110,625
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share)					$ 39.28
Grants in Period					0
Grants in Period, Weighted Average Grant Date Fair Value (per share)					$ 0
Vested in Period					0
Vested in Period, Weighted Average Grant Date Fair Value (per share)					$ 0
Forfeited in Period					(59,225)
Forfeited in Period, Weighted Average Grant Date Fair Value (per share)					$ 36.81
Nonvested Balance at End of Year, Restricted Shares					51,400	110,625
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share)					$ 42.12	$ 39.28
Reduction in share authorization if maximum performance level is met or exceeded (shares)					538,500
Time Vested Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested Balance at Beginning of Year, Restricted Shares					30,024
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share)					$ 36.60
Grants in Period					74,375
Grants in Period, Weighted Average Grant Date Fair Value (per share)					$ 36.79
Vested in Period					(16,701)
Vested in Period, Weighted Average Grant Date Fair Value (per share)					$ 36.33
Forfeited in Period					(2,650)
Forfeited in Period, Weighted Average Grant Date Fair Value (per share)					$ 36.19
Nonvested Balance at End of Year, Restricted Shares					85,048	30,024
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share)					$ 36.84	$ 36.60
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested Balance at Beginning of Year, Restricted Shares					61,875
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share)					$ 40.50
Grants in Period					68,825
Grants in Period, Weighted Average Grant Date Fair Value (per share)					$ 43.05
Vested in Period					0
Vested in Period, Weighted Average Grant Date Fair Value (per share)					$ 0
Forfeited in Period					(2,600)
Forfeited in Period, Weighted Average Grant Date Fair Value (per share)					$ 41.68
Nonvested Balance at End of Year, Restricted Shares					128,100	61,875
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share)					$ 41.85	$ 40.50
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 performance level is met or exceeded					67,625
Reduction in share authorization if maximum performance level is met or exceeded (shares)					202,875
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 performance level is met or exceeded						60,475
Reduction in share authorization if maximum performance level is met or exceeded (shares)						181,425
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
Performance Period, 2011 to 2013 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage for exceeding performance target								118.00%
Shares issued during the period			9,014
Performance Period, 2010 to 2012 [Member] | Performance Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage for exceeding performance target									114.00%
Shares issued during the period				6,996
Subsequent Event [Member] | Performance Period, 2013 to 2015 [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	51,400

Long-term Equity-based Compen81

Long-term Equity-based Compensation -Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan [Abstract]
Total fair value of DSUs that vested during the years	$ 100,000	$ 200,000	$ 100,000
Deferred Stock Units, Outstanding, Number, Period Start (in shares)	8,000
Deferred Stock Units, Granted and Vested in Period (in shares)	3,500
Reduction for Shares Issued on Conversion (in shares)	$ (4,500)
Deferred Stock Units, Outstanding, Number, Period End (in shares)	7,000	8,000
Deferred Stock Units, Outstanding, Weighted Average Exercise Price, Period Start (per share)	$ 34.52
Deferred Stock Units, Granted and Vested in Period, Weighted Average Exercise Price (per share)	38.38
Reduction for Shares Issued on Conversion (per share)	34.94
Deferred Stock Units, Outstanding, Weighted Average Exercise Price, Period End (per share)	$ 36.17	$ 34.52

Income From Continuing Operat82

Income From Continuing Operations Per Unrestricted Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations	$ 1.3	$ 38	$ 27.4	$ 13.5	$ 63.3	$ 4.8	$ 9.3	$ 35.2	$ 80.2	$ 112.6	$ 214.5
Dilutive Effect on Income of Equity-based Compensation Equivalent Shares									0	0	0
Diluted Income from Continuing Operations Attributed to Unrestricted Shares									$ 79.8	$ 112.1	$ 213.4
Weighted-Average Unrestricted Shares Outstanding (in shares)									51,606,900	53,762,500	56,856,900
Equity-based Compensation Equivalent Shares (in shares)									76,600	105,400	126,700
Weighted-average Unrestricted Shares and Equivalent Shares Outstanding Assuming Dilution ( in shares)									51,683,500	53,867,900	56,983,600
Basic Income from Continuing Operations Per Unrestricted Share (per share)	$ 0.03	$ 0.73	$ 0.53	$ 0.26	$ 1.20	$ 0.09	$ 0.17	$ 0.63	$ 1.55	$ 2.08	$ 3.75
Diluted Income from Continuing Operations Per Unrestricted Share (per share)	$ 0.03	$ 0.73	$ 0.53	$ 0.26	$ 1.20	$ 0.09	$ 0.17	$ 0.63	$ 1.55	$ 2.08	$ 3.74
Common Stock [Member]
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations									$ 79.8	$ 112.1	$ 213.4
Participating Awards [Member]
Schedule of Basic and Diluted Earnings Per Share [Line Items]
Income from Continuing Operations									$ 0.4	$ 0.5	$ 1.1

Income From Continuing Operat83

Income From Continuing Operations Per Unrestricted Share - Antidilutive Securities (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Options Excluded from Computation of Earnings Per Share, Amount (in shares)	959,700	1,605,100	2,080,900
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Options Excluded from Computation of Earnings Per Share, Amount (in shares)	959,700	1,605,100	2,080,900

Other Comprehensive Income (L84

Other Comprehensive Income (Loss) And Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Comprehensive Income (Loss) Before Income Taxes:
Unrealized Holding Gains (Losses) Arising During the Period Before Reclassification Adjustment	$ (151.9)	$ 259.7	$ (324.9)
Reclassification Adjustment for Amounts Included in Net Income	(25.4)	(25.1)	(37.9)
Unrealized Holding Gains (Losses)	(177.3)	234.6	(362.8)
Foreign Currency Translation Adjustments Arising During the Period Before Reclassification Adjustment	(1.4)	(1)	0.2
Reclassification Adjustment for Amounts Included in Net Income	0	0	0
Foreign Currency Translation Adjustments	(1.4)	(1)	0.2
Unrecognized Postretirement Benefit Costs Arising During the Year	3	(106.4)	61.6
Amortization of Net Unrecognized Postretirement Benefit Costs	23.1	7.9	25
Net Unrecognized Postretirement Benefit Costs	26.1	(98.5)	86.6
Other Comprehensive Income (Loss) Before Income Taxes	(152.6)	135.1	(276)
Income Tax Benefit (Expense):
Unrealized Holding Gains and Losses Arising During the Year Before Reclassification Adjustment	53.9	(91.6)	115.9
Reclassification Adjustment for Amounts Included in Net Income	8.9	8.8	13.2
Unrealized Holding Gains and Losses	62.8	(82.8)	129.1
Foreign Currency Translation Adjustments Arising During the Period Before Reclassification Adjustment	0.5	0.4	(0.1)
Reclassification Adjustment for Amounts Included in Net Income	0	0	0
Foreign Currency Translation Adjustment	0.5	0.4	(0.1)
Unrecognized Postretirement Benefit Costs Arising During the Year	(1.1)	37.5	(21.6)
Amortization of Unrecognized Postretirement Benefit Costs	(8)	(2.8)	(8.8)
Net Unrecognized Postretirement Benefit Costs	(9.1)	34.7	(30.4)
Other Comprehensive Income Tax Benefit (Expense)	$ 54.2	$ (47.7)	$ 98.6

- Accumulated Other Comprehensi

- Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Unrealized Gains on Investments, Net of Income Taxes:
Available for Sale Fixed Maturities with Portion of OTTI Recognized in Earnings	$ 1.4	$ 2.8
Other Net Unrealized Gains on Investments	211.7	324.8
Foreign Currency Translation Adjustments, Net of Income Taxes	(0.7)	0.2
Net Unrecognized Postretirement Benefit Costs, Net of Income Taxes	(88.1)	(105.1)
Accumulated Other Comprehensive Income	$ 124.3	$ 222.7

Other Comprehensive Income (L86

Other Comprehensive Income (Loss) And Accumulated Other Comprehensive Income Reclassification from AOCI to Consolidated Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Realized Gains (Losses) on Sales of Investments	$ 9.4	$ 5.3	$ 34	$ 3.4	$ 21	$ 8	$ 3.5	$ 6.6	$ 52.1	$ 39.1	$ 99.1
Net Impairment Losses Recognized in Earnings	(14.7)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.2)	(15.2)	(13.9)
Income Tax Benefit (Expense)	2.9	(11.8)	(6.9)	(4.3)	(29.8)	0.8	(1.9)	(16.7)	(20.1)	(47.6)	(99.9)
Net Income	4.6	37.9	29.7	13.5	65.4	4.7	9.3	35.1	85.7	114.5	217.7
Interest and Other Expenses	$ (25.6)	$ (25.7)	$ (26.6)	$ (29.7)	$ (24.4)	$ (22.1)	$ (22.5)	$ (22.7)	(107.6)	(91.7)	(100.5)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income									1.4	11.2	8.5
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Realized Gains (Losses) on Sales of Investments									52.6	37.9	51.8
Net Impairment Losses Recognized in Earnings									(27.2)	(12.8)	(13.9)
Total Before Income Taxes									25.4	25.1	37.9
Income Tax Benefit (Expense)									(8.9)	(8.8)	(13.2)
Net Income									16.5	16.3	24.7
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income Tax Benefit (Expense)									8	2.8	8.8
Net Income									(15.1)	(5.1)	(16.2)
Interest and Other Expenses									$ (23.1)	$ (7.9)	$ (25)

Income From Investments - Net

Income From Investments - Net Investment Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investment Income:
Equity Method Limited Liability Investments									$ 19	$ 9	$ 26.4
Fair Value Option Investments									0.2	(0.7)	0
Short-term Investments									0.4	0.6	0.1
Real Estate									11.9	12.1	20.8
Loans to Policyholders									21.1	20.5	19.8
Other									0	0.1	0
Total Investment Income									321.2	328.9	340.6
Investment Expenses:
Other Investment Expenses									18.6	19.8	25.9
Net Investment Income	$ 79.4	$ 75.9	$ 76.7	$ 70.6	$ 93.1	$ 72.3	$ 72.6	$ 71.1	302.6	309.1	314.7
Accrued Investment Income Receivable	$ 68.5				$ 65.5				68.5	65.5
Real Estate Investment [Member]
Investment Expenses:
Other Investment Expenses									11.3	11.3	18.3
Other Investment [Member]
Investment Expenses:
Other Investment Expenses									7.3	8.5	7.6
Fixed Maturities [Member]
Investment Income:
Interest and Dividends on Fixed Maturities									236.2	227.4	235.5
Equity Securities [Member]
Investment Income:
Dividends on Equity Securities									$ 32.4	$ 59.9	$ 38

Income From Investments - Ne88

Income From Investments - Net Realized Gains on Sales of Investments (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Investment Income [Line Items]
Realized Investment Gains									$ 55.3	$ 41.7	$ 99.5
Realized Investment Losses									(2.9)	(2.5)	(1)
Gain on Sale of Subsidiary									0	1.6	0
Trading Securities, Realized Gain (Loss)									(0.3)	(0.1)	0.6
Net Realized Gains (Losses) on Sales of Investments	$ 9.4	$ 5.3	$ 34	$ 3.4	$ 21	$ 8	$ 3.5	$ 6.6	52.1	39.1	99.1
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gains on Sales									16.1	7	30.9
Losses on Sales									(1.1)	(0.2)	(0.4)
Equity Securities [Member]
Net Investment Income [Line Items]
Gains on Sales									39.2	33.1	21.8
Losses on Sales									(1.6)	(2)	(0.5)
Investee [Member]
Net Investment Income [Line Items]
Equity Method Limited Liability Investment, Gains on Sales									0	0	2.5
Real Estate Investment [Member]
Net Investment Income [Line Items]
Realized Investment Gains									0	0	44.2
Realized Investment Losses									(0.2)	(0.2)	0
Other Investment [Member]
Net Investment Income [Line Items]
Realized Investment Gains									0	0	0.1
Realized Investment Losses									$ 0	$ (0.1)	$ (0.1)

Income From Investments - Ne89

Income From Investments - Net Impairment Losses Recognized in Earnings (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Investment Income [Line Items]
Net Impairment Losses Recognized in Earnings	$ (14.7)	$ (3.3)	$ (2.2)	$ (7)	$ (6.5)	$ (3.8)	$ (4.1)	$ (0.8)	$ (27.2)	$ (15.2)	$ (13.9)
Fixed Maturities [Member]
Net Investment Income [Line Items]
Net Impairment Losses Recognized in Earnings									(11.5)	(5.7)	(10.3)
Equity Securities [Member]
Net Investment Income [Line Items]
Net Impairment Losses Recognized in Earnings									(15.7)	(7.1)	(3.6)
Real Estate [Member]
Net Investment Income [Line Items]
Net Impairment Losses Recognized in Earnings									$ 0	$ (2.4)	$ 0

Insurance Expenses (Details)

Insurance Expenses (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Insurance Expenses [Abstract]
Commissions									$ 357.6	$ 324.6	$ 345.7
General Expenses									241.1	258.1	257.1
Taxes, Licenses and Fees									44.2	38.9	42.8
Total Costs Incurred									642.9	621.6	645.6
Policy Acquisition Costs:
Deferred									(270.6)	(235.8)	(253.4)
Amortized									257.4	235.4	253.9
Net Policy Acquisition Costs Amortized (Deferred)									(13.2)	(0.4)	0.5
Life VIF, P & C VIF and P&C Customer Relationships Amortized									15.4	7.2	8.3
Insurance Expenses	$ 177	$ 161.1	$ 162.1	$ 144.9	$ 156.4	$ 158.6	$ 161.3	$ 152.1	$ 645.1	$ 628.4	$ 654.4

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
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		$ 44.4	$ 37.2	$ 42.4
Interest on income taxes expense		(3.3)	$ 0.4	$ 0.4
Mutual Savings Life [Member]
Mutual Savings Life’s income		14.7
Amount of tax the company will have to pay if the Mutual Savings Life's income is distributes to shareholders in the future		$ 5.1

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current Income Tax Assets	$ 9.5	$ 0
Deferred Tax Assets, Gross	31.9	0
Current and Deferred Income Taxes	$ 41.4	$ 0

Income Taxes - Schedule of Liab

Income Taxes - Schedule of Liabilities for Income Tax (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Accrued Income Taxes, Current	$ 0	$ 7.8
Deferred Income Tax Liabilities	0	21.5
Unrecognized Tax Benefits	3.8	7.2	$ 6.8	$ 6.4
Liabilities for Income Taxes	$ 3.8	$ 36.5

Income Taxes - Schedule of Temp

Income Taxes - Schedule of Temporary Differences That Give Rise to Net Deferred Income Tax Assets (Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Deferred Income Tax Assets:
Insurance Reserves	$ 83	$ 78.7
Unearned Premium Reserves	41.7	35.5
Tax Capitalization of Policy Acquisition Costs	71.5	73
Payroll and Employee Benefit Accruals	72	74
Net Operating Loss Carryforward	30.5	31.7
Other	15.7	9.8
Total Deferred Income Tax Assets	314.4	302.7
Deferred Income Tax Liabilities:
Investments	109.8	160.1
Deferred Policy Acquisition Costs	110.7	106.1
Life VIF and P&C Customer Relationships	15.5	17.7
Goodwill and Other Intangible Assets Acquired	37	28.4
Depreciable Assets	7.3	7.4
Other	2.2	4.5
Total Deferred Income Tax Liabilities	282.5	324.2
Net Deferred Income Tax Liabilities	$ 31.9	$ (21.5)

Income Taxes - Summary of Feder

Income Taxes - Summary of Federal Net Operating Loss Carryforwards and Related Deferred Income Tax Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Deferred Tax Asset	$ 30.5	$ 31.7
Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	87.1
Deferred Tax Asset	30.5
Internal Revenue Service (IRS) [Member] | 2020 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	7.8
Deferred Tax Asset	2.7
Internal Revenue Service (IRS) [Member] | 2021 through 2025 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	30.5
Deferred Tax Asset	10.7
Internal Revenue Service (IRS) [Member] | 2026 through 2030 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	29.9
Deferred Tax Asset	10.5
Internal Revenue Service (IRS) [Member] | 2031 through 2032 [Member]
Income Tax Contingency [Line Items]
NOL Carry-forwards	18.9
Deferred Tax Asset	$ 6.6

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at Beginning of Year	$ 7.2	$ 6.8	$ 6.4
Additions for Tax Positions of Current Period	0.2	0.1	0.1
Additions for Tax Positions of Prior Years	0	0.3	0.3
Reduction for Expiration of Federal Statute of Limitations	3.6	0	0
Balance at End of Year	3.8	7.2	6.8
Unrecognized tax benefit	3.3	3.4	3.4
Accrued interest included in unrecognized tax benefits	0.5	3.8	3.4
Interest on income taxes expense	$ 3.3	$ (0.4)	$ (0.4)

Income Taxes - Income Tax Benef

Income Taxes - Income Tax Benefit (Expense) from Continuing Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Current Income Tax Expense									$ (25.7)	$ (41.7)	$ (49.4)
Deferred Income Tax Benefit (Expense)									2.2	(5.5)	(50.1)
(Increase) Decrease Unrecognized Tax Benefits									3.4	(0.4)	(0.4)
Income Tax Expense	$ 2.9	$ (11.8)	$ (6.9)	$ (4.3)	$ (29.8)	$ 0.8	$ (1.9)	$ (16.7)	$ (20.1)	$ (47.6)	$ (99.9)

Income Taxes - Statutory Federa

Income Taxes - Statutory Federal Income Tax Expense, Effective Income Tax Expense, Rates (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Statutory Federal Income Tax Expense									$ (35.1)	$ (56.1)	$ (110)
Statutory Federal Income Tax Expense, Rate, percentage									35.00%	35.00%	35.00%
Tax-exempt Income and Dividends Received Deduction									$ 9.8	$ 9	$ 10.6
Tax-exempt Income and Dividends Received Deduction, Rate, percentage									(9.70%)	(5.60%)	(3.40%)
Effective Income Tax Rate Reconciliation, Unrecognized Tax Benefit (Expense), Amount									$ 2.1	$ (0.3)	$ (0.3)
Effective Income Tax Rate Reconciliation, Unrecognized Tax Benefit (Expense), Percent									(2.10%)	(0.00%)	(0.00%)
Effective Income Tax Rate Reconciliation, Indemnification Recoveries, Amount									$ 3.7	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Indemnification Recoveries, Percent									(3.60%)	(0.00%)	(0.00%)
State Income Taxes									$ (0.6)	$ (0.6)	$ (0.2)
State Income Taxes, Percentage									0.50%	0.40%	0.10%
Other, Net									$ 0	$ 0.4	$ 0
Other, Net, Rate, percentage									0.00%	(0.10%)	0.10%
Income Tax Expense	$ 2.9	$ (11.8)	$ (6.9)	$ (4.3)	$ (29.8)	$ 0.8	$ (1.9)	$ (16.7)	$ (20.1)	$ (47.6)	$ (99.9)
Effective Income Tax Expense, Rate, percentage									20.10%	29.70%	31.80%

Income Taxes - Comprehensive In

Income Taxes - Comprehensive Income Tax Benefit and Expense (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Income Tax Expense	$ (2.9)	$ 11.8	$ 6.9	$ 4.3	$ 29.8	$ (0.8)	$ 1.9	$ 16.7	$ 20.1	$ 47.6	$ 99.9
Unrealized Depreciation (Appreciation) on Securities									62.8	(82.8)	129.1
Foreign Currency Translation Adjustments on Investments									0.5	0.4	(0.1)
Tax Effects from Postretirement Benefit Plans									(9.1)	34.7	(30.4)
Tax Effects from Long-term Equity-based Compensation included in Paid-in Capital									(1)	(1)	0.2
Comprehensive Income Tax Benefit (Expense)									(30)	97.4	2.8
Discontinued Operations [Member]
Operating Loss Carryforwards [Line Items]
Income Tax Expense									3.1	1.1	1.7
Continuing Operations [Member]
Operating Loss Carryforwards [Line Items]
Income Tax Expense									$ 20.1	$ 47.6	$ 99.9

Pension Benefits (Details)

Pension Benefits (Details) employees in Thousands, $ in Millions	Sep. 04, 2013USD ($)	Dec. 31, 2015USD ($)employees	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Defined Benefit Plan Disclosure [Line Items]
Actuarial Gain Recognized in Other Comprehensive Income, Before Tax		$ 3	$ (106.4)	$ 61.6
Defined Contribution Plan, Cost Recognized		$ 7.8	7.3	7.3
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Pension Plan, Number of Participants and Beneficiaries		9,300
Defined Benefit Pension Plans Active Employees | employees		2
Percentage of Compensation, Defined Benefit Plan Employee Contribution		3.00%
Defined Benefit Plan, Funded Status of Plan		$ (90.3)	(91)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 55
Pension Expense Recognized		25.6	8.3	29.7
Actuarial Gain Recognized in Other Comprehensive Income, Before Tax		1.9	(102)	53.8
Supplemental Employee Retirement Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Funded Status of Plan		30.4	31
Pension Expense Recognized		2.1	1.8	1.8
Actuarial Gain Recognized in Other Comprehensive Income, Before Tax		$ 1.5	$ (7)	$ 1.5

Pension Benefits - Changes in F

Pension Benefits - Changes in Fair Value of Plan Assets and Changes in Accumulated Benefit Obligations (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	$ 543	$ 524.5
Actual Return on Plan Assets	(10.6)	41.7
Benefits Paid	(24.9)	(23.2)
Fair Value of Plan Assets at End of Year	507.5	543
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligations at Beginning of Year	634	515.5
Service Cost	10.5	8.7
Interest Cost	25.7	24.8
Benefits Paid	(24.9)	(23.2)
Plan Amendments	0	(0.6)
Actuarial Losses (Gains)	47.5	(108.8)
Projected Benefit Obligation at End of Year	597.8	634
Funded Status—Plan Assets in Excess (Deficit) of Projected Benefit Obligation	(90.3)	(91)
Amount Recognized in Accumulated Other Comprehensive Income:
Accumulated Actuarial Loss	(152.2)	(178.6)
Prior Service Credit	0.4	0.5
Unamortized Amount Reported in AOCI at End of Year	(151.8)	(178.1)
Accumulated Benefit Obligation at End of Year	$ 573.9	$ 608.2

Pension Benefits - Actuarial A

Pension Benefits - Actuarial Assumptions for Project Benefit Obligations (Details) - Pension Plans, Defined Benefit [Member]	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount Rate	4.47%	4.10%
Rate of Increase in Future Compensation Levels	3.15%	3.31%

Pension Benefits - Weighted Ave

Pension Benefits - Weighted Average Asset Allocation for Pension Plans (Details) - Pension Plans, Defined Benefit [Member]	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	100.00%	100.00%
Cash and Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	4.00%	4.00%
Corporate Bonds and Notes [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	28.00%	29.00%
Common and Preferred Stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	43.00%	43.00%
Exchange Traded Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	9.00%	12.00%
Other Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	16.00%	12.00%

Pension Benefits - Fair Value P

Pension Benefits - Fair Value Plan Assets Measurements (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 507.5	$ 543
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	248.3	284.5
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	180.6	193.6
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	78.6	64.9	$ 47.4
US Government and Government Agencies and Authorities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	19.2	18.4
US Government and Government Agencies and Authorities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	19.2	18.4
US Government and Government Agencies and Authorities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
US Government and Government Agencies and Authorities [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
States and Political Subdivisions [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3.2	3.3
States and Political Subdivisions [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
States and Political Subdivisions [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	3.2	3.3
States and Political Subdivisions [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Corporate Bonds and Notes [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	122.2	136.6
Corporate Bonds and Notes [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Corporate Bonds and Notes [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	122.2	136.6
Corporate Bonds and Notes [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Preferred Stocks Finance, Insurance and Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	6.1	6.4
Preferred Stocks Finance, Insurance and Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Preferred Stocks Finance, Insurance and Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	6.1	6.4
Preferred Stocks Finance, Insurance and Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Common Stocks Manufacturing [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	94.1	113.8
Common Stocks Manufacturing [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	77.9	98.8
Common Stocks Manufacturing [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	16.2	15
Common Stocks Manufacturing [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Common Stock Other Industries [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	84.3	81.6
Common Stock Other Industries [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	82.5	79.3
Common Stock Other Industries [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.8	2.3
Common Stock Other Industries [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	31.1	30
Equity Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Equity Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	31.1	30
Equity Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Exchange Traded Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	47.2	65.5
Exchange Traded Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	47.2	65.5
Exchange Traded Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Exchange Traded Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Limited Liability Companies and Limited Partnerships [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	78.2	64.5
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	78.2	64.5
Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	20.4	21.5
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	20.4	21.5
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Receivables and Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.5	1.4
Receivables and Other [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	1.1	1
Receivables and Other [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	0	0
Receivables and Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 0.4	$ 0.4	$ 0.5

Pension Benefits - Changes i105

Pension Benefits - Changes in Fair Value of Pension Plans Level 3 (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	$ 543
Fair Value of Plan Assets at End of Year	507.5	$ 543
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	64.9	47.4
Return on Plan Assets Held	(1.5)	3.4
Purchases, Sales and Settlements, Net	15.2	14.1
Fair Value of Plan Assets at End of Year	78.6	64.9
Other Equity Interests [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	64.5	46.9
Return on Plan Assets Held	(1.5)	3.4
Purchases, Sales and Settlements, Net	15.2	14.2
Fair Value of Plan Assets at End of Year	78.2	64.5
Receivables and Other [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	1.4
Fair Value of Plan Assets at End of Year	1.5	1.4
Receivables and Other [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	0.4	0.5
Return on Plan Assets Held	0	0
Purchases, Sales and Settlements, Net	0	(0.1)
Fair Value of Plan Assets at End of Year	$ 0.4	$ 0.4

Pension Benefits - Components O

Pension Benefits - Components Of Comprehensive Pension Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Unrecognized Pension Loss (Gain) Arising During the Year	$ (3)	$ 106.4	$ (61.6)
Amortization of Accumulated Unrecognized Pension Loss	(23.1)	(7.9)	(25)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost Earned During the Year	10.5	8.7	10.8
Interest Cost on Projected Benefit Obligation	25.7	24.8	22.4
Expected Return on Plan Assets	(35)	(34.9)	(29.7)
Amortization of Actuarial Loss	24.4	9.7	26.2
Pension Expense Recognized in Consolidated Statements of Income	25.6	8.3	29.7
Unrecognized Pension Loss (Gain) Arising During the Year	(1.9)	102	(53.8)
Prior Service Credit Arising During the Year	0	(0.6)	0
Amortization of Accumulated Unrecognized Pension Loss	(24.4)	(9.7)	(26.2)
Comprehensive Pension Expense (Income)	(0.7)	$ 100	$ (50.3)
Amounts that will be amortized from AOCI in next Fiscal Year	$ 11.8

Pension Benefits - Actuarial As

Pension Benefits - Actuarial Assumptions Pension Expense (Details) - Pension Plans, Defined Benefit [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	4.10%	4.90%	4.05%
Rate of Increase in Future Compensation Levels	3.31%	3.05%	3.08%
Expected Long Term Rate of Return on Plan Assets	6.75%	7.00%	7.00%

Pension Benefits - Pension Bene

Pension Benefits - Pension Benefit Payments (Details) - Pension Plans, Defined Benefit [Member] $ in Millions	Dec. 31, 2015USD ($)
Defined Benefit Plan Disclosure [Line Items]
Expected Future Benefit Payments In 2016	$ 26.3
Expected Future Benefit Payments in 2017	27.7
Expected Future Benefit Payments in 2018	29.1
Expected Future Benefit Payments in 2019	30.3
Expected Future Benefit Payments in 2020	31.5
Expected Future Benefit Payments in 2021-2025	$ 174.4

Postretirement Benefits Othe109

Postretirement Benefits Other Than Pensions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)employees	Dec. 31, 2014USD ($)
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of retired employees covered | employees	500
Number of active employees covered | employees	250
Effect of one percentage point increase on accumulated postretirement benefit obligation	$ 1.5	$ 1.7
Effect of one percentage point increase on service and interest cost components	0.1	$ 0.1
Amounts that will be amortized from AOCI in next Fiscal Year	1.3
Estimated future employer contributions in next fiscal year	$ 3.3
Medical Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next fiscal year	7.00%	8.00%
Health care cost trend rate assumed for future years	5.00%	5.00%
Prescription Drug Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next fiscal year	11.00%	7.50%
Health care cost trend rate assumed for future years	5.00%	5.00%

Postretirement Benefits Othe110

Postretirement Benefits Other Than Pensions - Changes in Fair Value of Plan Assets and Changes in Accumulated Benefit Obligations (Details) - Other Postretirement Benefit Plan, Defined Benefit [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	$ 0	$ 0
Employer Contributions	3.4	3.4
Plan Participants' Contributions	1.2	1.2
Benefits Paid	(4.6)	(4.6)
Fair Value of Plan Assets at End of Year	0	0	$ 0
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligations at Beginning of Year	31.1	35.1
Service Cost	0.2	0.2	0.2
Interest Cost	1	1.1	1.2
Plan Participants' Contributions	1.2	1.2
Benefits Paid	(4.6)	(4.6)
Medicare Part D Subsidy Received	0.3	0.1
Actuarial Losses (Gains)	0.4	(2)
Projected Benefit Obligation at End of Year	29.6	31.1	$ 35.1
Funded Status—Plan Assets in Excess (Deficit) of Projected Benefit Obligation	(29.6)	(31.1)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	$ (16.8)	$ (18.6)

Postretirement Benefits Othe111

Postretirement Benefits Other Than Pensions - Actuarial Assumptions of OPEB Accumulated Benefit Obligation (Details) - Other Postretirement Benefit Plan, Defined Benefit [Member]	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.70%	3.40%
Rate of Increase in Future Compensation Levels	2.64%	2.68%

Postretirement Benefits Othe112

Postretirement Benefits Other Than Pensions - Components Of Comprehensive OPEB (Income) Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Unrecognized Postretirement Benefit Costs Arising During the Year	$ 3	$ (106.4)	$ 61.6
Amortization of Accumulated Unrecognized Pension Loss	(23.1)	(7.9)	(25)
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost Earned During the Year	0.2	0.2	0.2
Interest Cost on Accumulated Postretirement Benefit Obligation	1	1.1	1.2
Amortization of Actuarial Loss	(1.4)	(1.8)	(1.2)
Pension Expense Recognized in Consolidated Statements of Income	(0.2)	(0.5)	0.2
Unrecognized Postretirement Benefit Costs Arising During the Year	(0.4)	2	6.2
Amortization of Accumulated Unrecognized Pension Loss	1.4	1.8	1.2
Comprehensive OPEB Expense	$ 1.6	$ (0.7)	$ (4.8)

Postretirement Benefits Othe113

Postretirement Benefits Other Than Pensions - Actuarial Assumptions of OPEB Expense (Details) - Other Postretirement Benefit Plan, Defined Benefit [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Discount Rate	3.40%	4.00%	3.15%
Rate of Increase in Future Compensation Levels	2.68%	2.10%	2.10%

Postretirement Benefits Othe114

Postretirement Benefits Other Than Pensions - Benefit Payments Net, Modernization Act Subsidy (Details) - Other Postretirement Benefit Plan, Defined Benefit [Member] $ in Millions	Dec. 31, 2015USD ($)
Defined Benefit Plan Disclosure [Line Items]
Excluding Medicare Part D Subsidy Year One	$ 3.6
Expected Medicare Part D Subsidy, Year One	(0.3)
Net OPEB Benefits Year One	3.3
Excluding Medicare Part D Subsidy, Year Two	3.6
Expected Medicare Part D Subsidy, Year Two	(0.3)
Net OPEB Benefits Year Two	3.3
Excluding Medicare Part D Subsidy, Year Three	3.5
Expected Medicare Part D Subsidy, Year Three	(0.3)
Net OPEB Benefits Year Three	3.2
Excluding Medicare Part D Subsidy, Year Four	3.4
Expected Medicare Part D Subsidy, Year Four	(0.3)
Net OPEB Benefits Year Four	3.1
Excluding Medicare Part D Subsidy, Year Five	3.2
Expected Medicare Part D Subsidy, Year Five	(0.3)
Net OPEB Benefits Year Five	2.9
Excluding Medicare Part D Subsidy Fiscal Years Thereafter	13.5
Expected Medicare Part D Subsidy, Five Fiscal Years Thereafter	(1.5)
Net OPEB Benefits Five Fiscal Years Thereafter	$ 12

Business Segments (Details)

Business Segments (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)segments	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Segment Reporting [Abstract]
Number of Operating Segments | segments	2
Allocated Interest and Other Expenses | $	$ 43.4	$ 42.1	$ 39.7

Business Segments - Segment Ass

Business Segments - Segment Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 8,036.1	$ 7,833.4
Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Assets	2,749	2,486.1
Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Assets	4,733.9	4,810.6
Corporate and Other, Net [Member]
Segment Reporting Information [Line Items]
Assets	$ 553.2	$ 536.7

Business Segments - Earned Prem

Business Segments - Earned Premiums by Product Line (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Entity-Wide Information, Revenue from External Customer [Line Items]
Premiums Earned, Net, Life									$ 374.1	$ 387.6	$ 392.7
Premiums Earned, Net, Accident and Health									144.9	148.6	161.4
Earned Premiums	$ 541.5	$ 536.7	$ 500.1	$ 431.3	$ 451.5	$ 462.8	$ 470.3	$ 477.6	2,009.6	1,862.2	2,025.8
Personal Automobile [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Premiums Earned, Net, Property and Casualty									1,027.7	831.4	959.1
Homeowners [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Premiums Earned, Net, Property and Casualty									286.3	312.4	326.2
Other Personal Lines [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Premiums Earned, Net, Property and Casualty									122.1	127.4	134.1
Commercial Automobile [Member]
Entity-Wide Information, Revenue from External Customer [Line Items]
Premiums Earned, Net, Property and Casualty									$ 54.5	$ 54.8	$ 52.3

Business Segments - Segment Rev

Business Segments - Segment Revenues (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Earned Premiums	$ 541.5	$ 536.7	$ 500.1	$ 431.3	$ 451.5	$ 462.8	$ 470.3	$ 477.6	$ 2,009.6	$ 1,862.2	$ 2,025.8
Net Investment Income	79.4	75.9	76.7	70.6	93.1	72.3	72.6	71.1	302.6	309.1	314.7
Other Income	1.4	0.8	0.6	0.9	0.6	0.5	0.2	0.1	3.7	1.4	0.8
Total Revenues	617	615.4	609.2	499.2	559.7	539.8	542.5	554.6	2,340.8	2,196.6	2,426.5
Net Realized Gains on Sales of Investments	9.4	5.3	34	3.4	21	8	3.5	6.6	52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings	$ (14.7)	$ (3.3)	$ (2.2)	$ (7)	$ (6.5)	$ (3.8)	$ (4.1)	$ (0.8)	(27.2)	(15.2)	(13.9)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Revenues									2,300.1	2,155	2,327.3
Operating Segments [Member] | Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Earned Premiums									1,415.2	1,249.5	1,392.9
Net Investment Income									73.3	72.7	90.9
Other Income									0.6	0.5	0.5
Total Revenues									1,489.1	1,322.7	1,484.3
Operating Segments [Member] | Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Earned Premiums									594.4	612.7	632.9
Net Investment Income									214.2	218.7	209.9
Other Income									2.4	0.9	0.2
Total Revenues									811	832.3	843
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Other Income									15.8	17.7	14
Net Realized Gains on Sales of Investments									52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings									$ (27.2)	$ (15.2)	$ (13.9)

Business Segments - Segment Ope

Business Segments - Segment Operating Profit (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Operating Income (Loss)									$ 84.5	$ 136.3	$ 229.2
Net Realized Gains on Sales of Investments	$ 9.4	$ 5.3	$ 34	$ 3.4	$ 21	$ 8	$ 3.5	$ 6.6	52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings	(14.7)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.2)	(15.2)	(13.9)
Loss from Early Extinguishment of Debt	0	0	0	9.1					9.1	0	0
Income from Continuing Operations before Income Taxes	$ (1.6)	$ 49.8	$ 34.3	$ 17.8	$ 93.1	$ 4	$ 11.2	$ 51.9	100.3	160.2	314.4
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									133.4	169	276.5
Operating Segments [Member] | Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									23.7	27.1	139.6
Operating Segments [Member] | Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									109.7	141.9	136.9
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									(48.9)	(32.7)	(47.3)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net Realized Gains on Sales of Investments									52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings									(27.2)	(15.2)	(13.9)
Loss from Early Extinguishment of Debt									$ (9.1)	$ 0	$ 0

Business Segments - Segment Net

Business Segments - Segment Net Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net Operating Income									$ 69.9	$ 97.1	$ 159.2
Income from Continuing Operations	$ 1.3	$ 38	$ 27.4	$ 13.5	$ 63.3	$ 4.8	$ 9.3	$ 35.2	80.2	112.6	214.5
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net Operating Income									98.4	116.7	189.9
Operating Segments [Member] | Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Net Operating Income									26.7	24.9	100.6
Operating Segments [Member] | Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Net Operating Income									71.7	91.8	89.3
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net Operating Income									(28.5)	(19.6)	(30.7)
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Net Realized Gains on Sales of Investments									33.9	25.4	64.4
Net Impairment Losses Recognized in Earnings									17.7	9.9	9.1
Loss from Early Extinguishment of Debt									$ (5.9)	$ 0	$ 0

Business Segments - Amortizatio

Business Segments - Amortization of Deferred Policy Acquisitions Costs By Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Amortization of Deferred Policy Acquisition Costs	$ 257.4	$ 235.4	$ 253.9
Operating Segments [Member]
Segment Reporting Information [Line Items]
Amortization of Deferred Policy Acquisition Costs	257.4	235.4	253.9
Property and Casualty Insurance [Member]
Segment Reporting Information [Line Items]
Amortization of Deferred Policy Acquisition Costs	213.1	187.5	207.2
Life and Health Insurance [Member]
Segment Reporting Information [Line Items]
Amortization of Deferred Policy Acquisition Costs	$ 44.3	$ 47.9	$ 46.7

Discontinued Operations (Detail

Discontinued Operations (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Income Tax Expense									$ (3.1)	$ (1.1)	$ (1.7)
Income from Discontinued Operations	$ 3.3	$ (0.1)	$ 2.3	$ 0	$ 2.1	$ (0.1)	$ 0	$ (0.1)	$ 5.5	$ 1.9	$ 3.2
Income from Discontinued Operations Per Unrestricted Share:
Basic (in dollars per share)									$ 0.10	$ 0.04	$ 0.06
Diluted (in dollars per share)									$ 0.10	$ 0.04	$ 0.06
Property and Casualty	862.8				733.9				$ 862.8	$ 733.9	$ 843.5	$ 970.6
Unitrin Business Insurance [Member]
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Results of Operations									8.6	3	$ 4.9
Income from Discontinued Operations Per Unrestricted Share:
Property and Casualty	$ 50.3				$ 69.3				$ 50.3	$ 69.3

Catastrophe Reinsurance (Detail

Catastrophe Reinsurance (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)
Reinsurance Disclosures [Abstract]
Catastrophic Events Classification	$ 25

Catastrophe Reinsurance - Cover

Catastrophe Reinsurance - Coverage for Catastrophe Reinsurance (Details) - Property and Casualty Insurance [Member] - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Retained [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Reinsured Risk, Percentage	0.00%	0.00%	0.00%
First Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Percentage	95.00%	95.00%	65.00%
Second Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Percentage	95.00%	95.00%	95.00%
Third Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Percentage		95.00%	90.00%
Fourth Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Percentage			50.00%
Minimum [Member] | Retained [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Amount Retained	$ 0	$ 0	$ 0
Minimum [Member] | First Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured	50,000,000	50,000,000	50,000,000
Minimum [Member] | Second Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured	150,000,000	100,000,000	100,000,000
Minimum [Member] | Third Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured		200,000,000	200,000,000
Minimum [Member] | Fourth Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured			350,000,000
Maximum [Member] | Retained [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Amount Retained	50,000,000	50,000,000	50,000,000
Maximum [Member] | First Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured	150,000,000	100,000,000	100,000,000
Maximum [Member] | Second Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured	$ 350,000,000	200,000,000	200,000,000
Maximum [Member] | Third Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured		$ 400,000,000	350,000,000
Maximum [Member] | Fourth Layer of Coverage [Member]
Liability for Catastrophe Claims [Line Items]
Reinsurance Retention Policy, Excess Retention, Amount Reinsured			$ 450,000,000

Catastrophe Reinsurance - Catas

Catastrophe Reinsurance - Catastrophe Reinsurance Premiums (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability for Catastrophe Claims [Line Items]
Ceded Catastrophe Reinsurance Premiums	$ 20.6	$ 26	$ 33.9
Catastrophe Reinsurance [Member]
Liability for Catastrophe Claims [Line Items]
Ceded Catastrophe Reinsurance Premiums	12.9	17.7	23.6
Property and Casualty Insurance [Member] | Catastrophe Reinsurance [Member]
Liability for Catastrophe Claims [Line Items]
Ceded Catastrophe Reinsurance Premiums	12.8	17.6	23.6
Life and Health Insurance [Member] | Catastrophe Reinsurance [Member]
Liability for Catastrophe Claims [Line Items]
Ceded Catastrophe Reinsurance Premiums	$ 0.1	$ 0.1	$ 0

Catastrophe Reinsurance - Ca126

Catastrophe Reinsurance - Catastrophe Losses and LAE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liability for Catastrophe Claims [Line Items]
Catastrophe Losses and LAE	$ 1,103.2	$ 908.3	$ 991.9
Catastrophe Loss and LAE Reserves, (Unfavorable) Favorable Development	(20.1)	(57.1)	(64.6)
Catastrophe [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophe Losses and LAE	60.5	83.8	36.2
Catastrophe Loss and LAE Reserves, (Unfavorable) Favorable Development	(7.8)	(14.7)	(14.5)
Property and Casualty Insurance [Member] | Catastrophe [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophe Losses and LAE	56.6	80.7	34.6
Catastrophe Loss and LAE Reserves, (Unfavorable) Favorable Development	(7.9)	(15.8)	(12.5)
Life and Health Insurance [Member] | Catastrophe [Member]
Liability for Catastrophe Claims [Line Items]
Catastrophe Losses and LAE	3.9	3.1	1.6
Catastrophe Loss and LAE Reserves, (Unfavorable) Favorable Development	$ 0.1	$ 1.1	$ (2)

Other Reinsurance Ceded Insuran

Other Reinsurance Ceded Insurance (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Effects of Reinsurance [Line Items]
Ceded to Other Companies	$ 20.6	$ 26	$ 33.9
Catastrophe Reinsurance [Member]
Effects of Reinsurance [Line Items]
Ceded to Other Companies	$ 12.9	$ 17.7	$ 23.6

Other Reinsurance Assumed Insur

Other Reinsurance Assumed Insurance (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)employeesdirector	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)
Assumed Insurance [Line Items]
Assumed Premiums Earned	$ 60.1	$ 57.1	$ 52.7
Capitol [Member]
Assumed Insurance [Line Items]
Number of Company Employee Board Members | employees	5
Number of Board of Director Members | director	5
ORCC [Member]
Assumed Insurance [Line Items]
Number of Company Employee Board Members | employees	9
Number of Board of Director Members | director	9
Capitol [Member]
Assumed Insurance [Line Items]
Assumed Premiums Earned	$ 21.8	21.9	22.4
Capitol [Member] | Trinity [Member]
Assumed Insurance [Line Items]
Earned Premiums Assumed, Percentage	100.00%
ORCC [Member]
Assumed Insurance [Line Items]
Assumed Premiums Earned	$ 6.5	6.7	7.2
ORCC [Member] | Trinity [Member]
Assumed Insurance [Line Items]
Earned Premiums Assumed, Percentage	100.00%
Non-Catastrophe Reinsurance [Member]
Assumed Insurance [Line Items]
Assumed Premiums Earned	$ 60	$ 57.1	$ 52.7

Fair Value Measurements - Valua

Fair Value Measurements - Valuation of Assets Measured at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments	$ 164.5	$ 53.3
Trading Securities at Fair Value	4.7	4.9
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Securities at Fair Value	4.7	4.9
Investments, Fair Value Disclosure	5,544.7	5,468
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 at Fair Value	4.7	4.9
Investments, Fair Value Disclosure	323.9	446.7
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 at Fair Value	0	0
Investments, Fair Value Disclosure	4,289.6	4,307.4
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 at Fair Value	0	0
Investments, Fair Value Disclosure	931.2	713.9
Investments in Fixed Maturities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	4,852.3	4,777.6
Investments in Fixed Maturities [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]
Available-for-sale Securities	124.9	129.2
Investments in Fixed Maturities [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]
Available-for-sale Securities	4,196.2	4,212.8
Investments in Fixed Maturities [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]
Available-for-sale Securities	531.2	435.6
US Government and Government Agencies and Authorities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	320.6	345.5
US Government and Government Agencies and Authorities [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]
Available-for-sale Securities	124.9	129.2
US Government and Government Agencies and Authorities [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]
Available-for-sale Securities	195.7	216.3
US Government and Government Agencies and Authorities [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]
Available-for-sale Securities	0	0
States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	1,622.6	1,477.1
States and Political Subdivisions [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]
Available-for-sale Securities	0	0
States and Political Subdivisions [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]
Available-for-sale Securities	1,622.6	1,477.1
States and Political Subdivisions [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]
Available-for-sale Securities	0	0
Corporate Bonds and Notes [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	2,812.8	2,878.5
Corporate Bonds and Notes [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]
Available-for-sale Securities	0	0
Corporate Bonds and Notes [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]
Available-for-sale Securities	2,376.5	2,517.9
Corporate Bonds and Notes [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]
Available-for-sale Securities	436.3	360.6
Redeemable Preferred Stocks [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	3.8	6.7
Redeemable Preferred Stocks [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]
Available-for-sale Securities	0	0
Redeemable Preferred Stocks [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]
Available-for-sale Securities	0	0
Redeemable Preferred Stocks [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]
Available-for-sale Securities	3.8	6.7
Collateralized Loan Obligations [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	87.3	64.4
Collateralized Loan Obligations [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]
Available-for-sale Securities	0	0
Collateralized Loan Obligations [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]
Available-for-sale Securities	0	0
Collateralized Loan Obligations [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]
Available-for-sale Securities	87.3	64.4
Other Mortgage and Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	5.2	5.4
Other Mortgage and Asset-backed Securities [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]
Available-for-sale Securities	0	0
Other Mortgage and Asset-backed Securities [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]
Available-for-sale Securities	1.4	1.5
Other Mortgage and Asset-backed Securities [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]
Available-for-sale Securities	3.8	3.9
Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	523.2	632.2
Equity Securities [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]
Available-for-sale Securities	194.3	312.6
Equity Securities [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]
Available-for-sale Securities	93.4	94.6
Equity Securities [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]
Available-for-sale Securities	235.5	225
Preferred Stock [Member] | Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	84.9	89.7
Preferred Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	0	0
Preferred Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	79.8	84.7
Preferred Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	5.1	5
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	19	19.8
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	0	0
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	6.2	3.4
Preferred Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	12.8	16.4
Common Stock [Member] | Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	23.2	40.5
Common Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	16.6	34.8
Common Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	6.6	0.1
Common Stock [Member] | Finance, Insurance and Real Estate [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]
Available-for-sale Securities	0	5.6
Common Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	13.5
Common Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	0.6
Common Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	0.8
Common Stock [Member] | All Industries Other than Finance, Insurance and Real Estate [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]
Available-for-sale Securities	12.1
Common Stock [Member] | Manufacturing [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		57.2
Common Stock [Member] | Manufacturing [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]
Available-for-sale Securities		50.9
Common Stock [Member] | Manufacturing [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]
Available-for-sale Securities		5.7
Common Stock [Member] | Manufacturing [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]
Available-for-sale Securities		0.6
Common Stock [Member] | All Industries Other than Manufacturing and Finance, Insurance and Real Estate [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		36.1
Common Stock [Member] | All Industries Other than Manufacturing and Finance, Insurance and Real Estate [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]
Available-for-sale Securities		24.2
Common Stock [Member] | All Industries Other than Manufacturing and Finance, Insurance and Real Estate [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]
Available-for-sale Securities		0.7
Common Stock [Member] | All Industries Other than Manufacturing and Finance, Insurance and Real Estate [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]
Available-for-sale Securities		11.2
Exchange Traded Funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	177.1	202.7
Exchange Traded 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]
Available-for-sale Securities	177.1	202.7
Exchange Traded 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]
Available-for-sale Securities	0	0
Exchange Traded 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]
Available-for-sale Securities	0	0
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unfunded commitments	107.6
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	205.5	186.2
Limited Liability Companies and Limited Partnerships [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]
Available-for-sale Securities	0	0
Limited Liability Companies and Limited Partnerships [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]
Available-for-sale Securities	0	0
Limited Liability Companies and Limited Partnerships [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]
Available-for-sale Securities	205.5	186.2
Limited Liability Companies and Limited Partnerships [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Option Investments	164.5	53.3
Limited Liability Companies and Limited Partnerships [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	0	0
Limited Liability Companies and Limited Partnerships [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	0	0
Limited Liability Companies and Limited Partnerships [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	$ 164.5	$ 53.3

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative Information about Significant Unobservable Inputs (Details) - Market Approach Valuation Technique [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Collateralized Loan Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 87.3	$ 64.4
Collateralized Loan Obligations [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	3.10%	2.70%
Collateralized Loan Obligations [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	10.80%	8.10%
Collateralized Loan Obligations [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	6.10%	5.20%
Other Debt Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 14.7	$ 21.6
Investments in Fixed Maturities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	531.2	435.6
External Credit Rating, Investment Grade [Member] | Private Placement [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 98.7	$ 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	2.60%	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	4.40%	3.90%
External Credit Rating, Non Investment Grade [Member] | Senior Debt Obligations [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 114.2	$ 92.7
External Credit Rating, Non Investment Grade [Member] | Senior Debt Obligations [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	5.90%	3.80%
External Credit Rating, Non Investment Grade [Member] | Senior Debt Obligations [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	15.30%	14.50%
External Credit Rating, Non Investment Grade [Member] | Senior Debt Obligations [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	10.40%	10.60%
External Credit Rating, Non Investment Grade [Member] | Junior Subordinated Debt [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	$ 216.3	$ 149.9
External Credit Rating, Non Investment Grade [Member] | Junior Subordinated Debt [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	8.20%	8.20%
External Credit Rating, Non Investment Grade [Member] | Junior Subordinated Debt [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	26.20%	21.00%
External Credit Rating, Non Investment Grade [Member] | Junior Subordinated Debt [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Discount Rate	13.60%	13.40%

Fair Value Measurements - Level

Fair Value Measurements - Level 3 Inputs Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Level 1 to level 3 Transfers, Amount	$ 0	$ 0
Fair Value, Level 3 to level 1 Transfers, Amount	0	0
Fair Value, Level 1 to Level 2 Activity Transfers, Amount	0	0
Fair Value, Level 2 to Level 1 Activity Transfers, Amount	0	0
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	713,900,000	626,700,000
Included in Consolidated Statement of Income	(17,900,000)	0
Included in Other Comprehensive Income	(8,700,000)	6,800,000
Purchases	461,400,000	347,400,000
Settlements	(114,400,000)	(172,100,000)
Sales	(87,300,000)	(96,600,000)
Transfers Into Level 3	4,100,000	3,600,000
Transfers out of Level 3	(19,900,000)	(1,900,000)
Balance at End of Year	931,200,000	713,900,000
Corporate Bonds and Notes [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	360,600,000	364,100,000
Included in Consolidated Statement of Income	(9,400,000)	(3,400,000)
Included in Other Comprehensive Income	(7,400,000)	5,100,000
Purchases	241,500,000	201,400,000
Settlements	(65,500,000)	(126,400,000)
Sales	(73,600,000)	(79,000,000)
Transfers Into Level 3	0	0
Transfers out of Level 3	(10,000,000)	(1,200,000)
Balance at End of Year	436,200,000	360,600,000
Redeemable Preferred Stocks [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	6,700,000	7,400,000
Included in Consolidated Statement of Income	(1,600,000)	0
Included in Other Comprehensive Income	(700,000)	(100,000)
Purchases	0	0
Settlements	(600,000)	(600,000)
Sales	0	0
Transfers Into Level 3	0	0
Transfers out of Level 3	0	0
Balance at End of Year	3,800,000	6,700,000
Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	64,400,000	44,700,000
Included in Consolidated Statement of Income	600,000	200,000
Included in Other Comprehensive Income	(2,200,000)	(1,000,000)
Purchases	39,500,000	26,100,000
Settlements	(7,500,000)	0
Sales	(7,500,000)	(5,600,000)
Transfers Into Level 3	0	0
Transfers out of Level 3	0	0
Balance at End of Year	87,300,000	64,400,000
Other Mortgage and Asset-backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	3,900,000	4,500,000
Included in Consolidated Statement of Income	0	100,000
Included in Other Comprehensive Income	(100,000)	100,000
Purchases	1,300,000	0
Settlements	(100,000)	(800,000)
Sales	(1,200,000)	0
Transfers Into Level 3	0	0
Transfers out of Level 3	0	0
Balance at End of Year	3,800,000	3,900,000
Preferred and Common Stock [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	38,800,000	32,100,000
Included in Consolidated Statement of Income	(2,600,000)	1,100,000
Included in Other Comprehensive Income	1,400,000	500,000
Purchases	8,100,000	8,900,000
Settlements	(700,000)	(4,500,000)
Sales	(5,000,000)	(2,200,000)
Transfers Into Level 3	0	3,600,000
Transfers out of Level 3	(9,900,000)	(700,000)
Balance at End of Year	30,100,000	38,800,000
Other Equity Interests [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	186,200,000	173,900,000
Included in Consolidated Statement of Income	(5,100,000)	2,700,000
Included in Other Comprehensive Income	300,000	2,200,000
Purchases	60,000,000	53,000,000
Settlements	(40,000,000)	(39,800,000)
Sales	0	(5,800,000)
Transfers Into Level 3	4,100,000	0
Transfers out of Level 3	0	0
Balance at End of Year	205,500,000	186,200,000
Fair Value Option Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at Beginning of Year	53,300,000	0
Included in Consolidated Statement of Income	200,000	(700,000)
Included in Other Comprehensive Income	0	0
Purchases	111,000,000	58,000,000
Settlements	0	0
Sales	0	(4,000,000)
Transfers Into Level 3	0	0
Transfers out of Level 3	0	0
Balance at End of Year	$ 164,500,000	$ 53,300,000

Related Parties (Details)

Related Parties (Details) - FS&C [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Related Party Transaction Amount of Assets in Defined Contributions Plans			$ 22.8
Related Party Transaction Percent of Assets in Defined Contribution Plan Assets			6.00%
Trinity [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Assets Managed by Investment Advisory Firm under Director's Management		$ 85.8	$ 154.7
Related Party Transaction, Expenses from Transactions with Related Party	$ 0.1	0.3	0.4
Pension Plans, Defined Benefit [Member] | Investment Management Services for Defined Benefit Plan [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	0.4	0.4	0.3
Assets under Management, Carrying Amount	$ 137.2	$ 159.2	$ 148.6

Quarterly Financial Informat133

Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues [Abstract]
Earned Premiums	$ 541.5	$ 536.7	$ 500.1	$ 431.3	$ 451.5	$ 462.8	$ 470.3	$ 477.6	$ 2,009.6	$ 1,862.2	$ 2,025.8
Net Investment Income	79.4	75.9	76.7	70.6	93.1	72.3	72.6	71.1	302.6	309.1	314.7
Other Income	1.4	0.8	0.6	0.9	0.6	0.5	0.2	0.1	3.7	1.4	0.8
Net Realized Gains on Sales of Investments	9.4	5.3	34	3.4	21	8	3.5	6.6	52.1	39.1	99.1
Other-than-temporary Impairment Losses:
Total Other-than-temporary Impairment Losses	(14.9)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.4)	(15.2)	(15.8)
Portion of Losses Recognized in Other Comprehensive Income	0.2	0	0	0	0	0	0	0	0.2	0	1.9
Net Impairment Losses Recognized in Earnings	(14.7)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.2)	(15.2)	(13.9)
Total Revenues	617	615.4	609.2	499.2	559.7	539.8	542.5	554.6	2,340.8	2,196.6	2,426.5
Expenses [Abstract]
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	416	378.8	375.1	297.7	285.8	300.5	347.5	327.9	1,467.6	1,261.7	1,357.2
Insurance Expenses	177	161.1	162.1	144.9	156.4	158.6	161.3	152.1	645.1	628.4	654.4
Write-off of Long-lived Assets	0	0	11.1	0	0	54.6	0	0	11.1	54.6	0
Loss from Early Extinguishment of Debt	0	0	0	9.1					9.1	0	0
Interest and Other Expenses	25.6	25.7	26.6	29.7	24.4	22.1	22.5	22.7	107.6	91.7	100.5
Total Expenses	618.6	565.6	574.9	481.4	466.6	535.8	531.3	502.7	2,240.5	2,036.4	2,112.1
Income (Loss) from Continuing Operations before Income Taxes	(1.6)	49.8	34.3	17.8	93.1	4	11.2	51.9	100.3	160.2	314.4
Income Tax Benefit (Expense)	2.9	(11.8)	(6.9)	(4.3)	(29.8)	0.8	(1.9)	(16.7)	(20.1)	(47.6)	(99.9)
Income from Continuing Operations	1.3	38	27.4	13.5	63.3	4.8	9.3	35.2	80.2	112.6	214.5
Income from Discontinued Operations	3.3	(0.1)	2.3	0	2.1	(0.1)	0	(0.1)	5.5	1.9	3.2
Net Income	$ 4.6	$ 37.9	$ 29.7	$ 13.5	$ 65.4	$ 4.7	$ 9.3	$ 35.1	$ 85.7	$ 114.5	$ 217.7
Income (Loss) from Continuing Operations Per Unrestricted Share [Abstract]
Income from Continuing Operations Per Unrestricted Share - Basic (usd pre share)	$ 0.03	$ 0.73	$ 0.53	$ 0.26	$ 1.20	$ 0.09	$ 0.17	$ 0.63	$ 1.55	$ 2.08	$ 3.75
Income from Continuing Operations Per Unrestricted Share - Diluted (usd per share)	0.03	0.73	0.53	0.26	1.20	0.09	0.17	0.63	1.55	2.08	3.74
Net Income (Loss) Per Unrestricted Share [Abstract]
Net Income Per Unrestricted Share - Basic ( usd per share)	0.09	0.73	0.57	0.26	1.24	0.09	0.17	0.63	1.65	2.12	3.81
Net Income Per Unrestricted Share - Diluted (usd pre share)	0.09	0.73	0.57	0.26	1.24	0.09	0.17	0.63	1.65	2.12	3.80
Dividends Paid to Shareholders Per Share (usd per share)	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.24	$ 0.96	$ 0.96	$ 0.96
Discontinued Operation, Tax Effect of Discontinued Operation									$ 3.1	$ 1.1	$ 1.7

Schedule 1 - Investments Oth134

Schedule 1 - Investments Other Than Investments in Related Parties (Details) $ in Millions	Dec. 31, 2015USD ($)
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	$ 6,101.6
Amount Carried in Balance Sheet	6,429.5
Fixed Maturities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	4,560.7
Fair Value	4,852.3
Amount Carried in Balance Sheet	4,852.3
US Government and Government Agencies and Authorities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	298
Fair Value	320.6
Amount Carried in Balance Sheet	320.6
States and Political Subdivisions [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	1,513.7
Fair Value	1,622.6
Amount Carried in Balance Sheet	1,622.6
Other Corporate Bonds and Notes [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	2,651.5
Fair Value	2,812.8
Amount Carried in Balance Sheet	2,812.8
Redeemable Preferred Stocks [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	3.7
Fair Value	3.8
Amount Carried in Balance Sheet	3.8
Collateralized Loan Obligations [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	90
Fair Value	87.3
Amount Carried in Balance Sheet	87.3
Other Mortgage and Asset-backed Securities [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	3.8
Fair Value	5.2
Amount Carried in Balance Sheet	5.2
Equity Securities, Investment Summary [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	486.9
Fair Value	523.2
Amount Carried in Balance Sheet	523.2
Preferred Stock [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	97.9
Fair Value	103.9
Amount Carried in Balance Sheet	103.9
Common Stock [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	28.3
Fair Value	36.7
Amount Carried in Balance Sheet	36.7
Other Equity Interests [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	360.7
Fair Value	382.6
Amount Carried in Balance Sheet	382.6
Fair Value Option Investments [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	164.5
Fair Value	164.5
Amount Carried in Balance Sheet	164.5
Equity Method Limited Liability Investments at Cost Plus Cumulative Undistributed Earnings [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	190.6
Amount Carried in Balance Sheet	190.6
Loans, Real Estate and Other Investments [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	443.2
Amount Carried in Balance Sheet	443.2
Short-term Investments [Member]
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized Cost	255.7
Amount Carried in Balance Sheet	$ 255.7

Schedule 2 - Parent Company 135

Schedule 2 - Parent Company Financial Statements - Balance Sheets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
ASSETS
Investments in Subsidiaries	$ 190.6	$ 184.8
Fixed Maturities at Fair Value (Amortized Cost: 2015 – $15.1; 2014 – $12.2)	4,852.3	4,777.6
Fair Value Option Investments	164.5	53.3
Short-term Investments	255.7	342.2
Cash	161.7	76.1	$ 66.5	$ 96.3
Other Receivables	193.2	187
Current and Deferred Income Taxes	41.4	0
Other Assets	238.5	220.2
Total Assets	8,036.1	7,833.4
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	750.6	752.1
Liabilities for Income Taxes	3.8	36.5
Accrued Expenses and Other Liabilities	472.4	409.6
Total Liabilities	6,043.7	5,742.7
Shareholders’ Equity:
Additional Paid-in Capital	654	660.1
Retained Earnings	1,209	1,202.7
Accumulated Other Comprehensive Income	124.3	222.7
Total Shareholders’ Equity	1,992.4	2,090.7	2,051.5	2,161.7
Total Liabilities and Shareholders’ Equity	8,036.1	7,833.4
Parent Company [Member]
ASSETS
Investments in Subsidiaries	2,586.6	2,677.5
Fixed Maturities at Fair Value (Amortized Cost: 2015 – $15.1; 2014 – $12.2)	15.1	12.2
Equity Securities at Fair Value (Cost: 2015 – $6.4; 2014 – $21.9)	10.9	21.8
Fair Value Option Investments	164.5	53.3
Short-term Investments	134.8	225.1
Cash	15.9	17.9	$ 20.8	$ 2.2
Other Receivables	5.7	6.9
Current and Deferred Income Taxes	0	4.7
Other Assets	6.1	5.6
Total Assets	2,939.6	3,025
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities for Income Taxes	33.3	14.5
Liabilities for Benefit Plans	154.8	160.2
Accrued Expenses and Other Liabilities	8.5	7.5
Total Liabilities	947.2	934.3
Shareholders’ Equity:
Common Stock	5.1	5.2
Additional Paid-in Capital	654	660.1
Retained Earnings	1,209	1,202.7
Accumulated Other Comprehensive Income	124.3	222.7
Total Shareholders’ Equity	1,992.4	2,090.7
Total Liabilities and Shareholders’ Equity	2,939.6	3,025
Parent Company [Member] | Senior Notes, 6% Due May 15, 2017 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	359.1	358.5
Parent Company [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	0	249.5
Parent Company [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	247.4	0
Parent Company [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	144.1	144.1
Senior Notes [Member] | Senior Notes, 6% Due May 15, 2017 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	359.1	358.5
Senior Notes [Member] | Senior Notes, 6% Due November 30, 2015 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	0	249.5
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Notes Payable	$ 247.4	$ 0

Schedule 2 - Parent Company 136

Schedule 2 - Parent Company Financial Statements - Balance Sheets (Non-printing) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Feb. 24, 2015	Dec. 31, 2014	Feb. 27, 2014
Amortized Cost of Fixed Maturity Securities	$ 4,560.7		$ 4,341.7
Fair Value of Notes Payable	781.3		804.4
Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Senior Notes Payable, Interest Rate		4.35%
Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Senior Notes Payable, Interest Rate				7.375%
Parent Company [Member]
Amortized Cost of Fixed Maturity Securities	15.1		12.2
Equity Securities at Cost	11.1		21.9
Parent Company [Member] | Senior Notes [Member] | Senior Notes Payable, 6.00% due 2017 [Member]
Fair Value of Notes Payable	$ 374		$ 390.2
Senior Notes Payable, Interest Rate	6.00%		6.00%
Parent Company [Member] | Senior Notes [Member] | Senior Notes Payable, 6.00% due 2015 [Member]
Fair Value of Notes Payable			$ 260.2
Senior Notes Payable, Interest Rate			6.00%
Parent Company [Member] | Senior Notes [Member] | Senior Notes, 4.35 Percent Due February 15, 2025 [Member]
Fair Value of Notes Payable	$ 248.3		$ 0
Senior Notes Payable, Interest Rate	4.35%		4.35%
Parent Company [Member] | Subordinated Debt [Member] | Subordinated Debenture, 7.375 Percent Due 2054 [Member]
Fair Value of Notes Payable	$ 159		$ 154
Senior Notes Payable, Interest Rate	7.375%		7.375%

Schedule 2 - Parent Company 137

Schedule 2 - Parent Company Financial Statements - Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net Investment Income	$ 79.4	$ 75.9	$ 76.7	$ 70.6	$ 93.1	$ 72.3	$ 72.6	$ 71.1	$ 302.6	$ 309.1	$ 314.7
Net Realized Gains (Losses) on Sales of Investments	9.4	5.3	34	3.4	21	8	3.5	6.6	52.1	39.1	99.1
Net Impairment Losses Recognized in Earnings	(14.7)	(3.3)	(2.2)	(7)	(6.5)	(3.8)	(4.1)	(0.8)	(27.2)	(15.2)	(13.9)
Total Revenues	617	615.4	609.2	499.2	559.7	539.8	542.5	554.6	2,340.8	2,196.6	2,426.5
Loss from Early Extinguishment of Debt	0	0	0	9.1					9.1	0	0
Total Expenses	618.6	565.6	574.9	481.4	466.6	535.8	531.3	502.7	2,240.5	2,036.4	2,112.1
Income Tax Benefit	2.9	(11.8)	(6.9)	(4.3)	(29.8)	0.8	(1.9)	(16.7)	(20.1)	(47.6)	(99.9)
Net Income	$ 4.6	$ 37.9	$ 29.7	$ 13.5	$ 65.4	$ 4.7	$ 9.3	$ 35.1	85.7	114.5	217.7
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net Investment Income									1.7	0.9	0.2
Net Realized Gains (Losses) on Sales of Investments									(0.1)	(0.2)	0.6
Net Impairment Losses Recognized in Earnings									(1.6)	(1.7)	0
Total Revenues									0	(1)	0.8
Interest Expense									47.3	47.9	39
Loss from Early Extinguishment of Debt									9.1	0	0
Other Operating Expenses									17.6	2.7	21.6
Total Expenses									74	50.6	60.6
Loss before Income Taxes and Equity in Net Income of Subsidiaries									(74)	(51.6)	(59.8)
Income Tax Benefit									26.5	18.9	20.8
Loss before Equity in Net Income of Subsidiaries									(47.5)	(32.7)	(39)
Equity in Net Income of Subsidiaries									133.2	147.2	256.7
Net Income									$ 85.7	$ 114.5	$ 217.7

Schedule 2 - Parent Company 138

Schedule 2 - Parent Company Financial Statements - Statements of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net Income	$ 4.6	$ 37.9	$ 29.7	$ 13.5	$ 65.4	$ 4.7	$ 9.3	$ 35.1	$ 85.7	$ 114.5	$ 217.7
Unrealized Holding Gains (Losses) Arising During the Year:
Securities Held by Parent									(151.9)	259.7	(324.9)
Reclassification Adjustment for Amounts Included in Net Income:
Securities Held by Parent									(25.4)	(25.1)	(37.9)
Unrealized Holding Gains (Losses)									(177.3)	234.6	(362.8)
Unrecognized Postretirement Benefit Costs Arising During the Year									3	(106.4)	61.6
Net Unrecognized Postretirement Benefit Costs									26.1	(98.5)	86.6
Foreign Currency Translation Adjustments									(1.4)	(1)	0.2
Reclassification Adjustment for Amounts Included in Net Income									0	0	0
Foreign Currency Translation Adjustments									(1.4)	(1)	0.2
Other Comprehensive Income (Loss) Before Income Taxes									(152.6)	135.1	(276)
Income Tax Benefit (Expense):
Securities Held by Parent									53.9	(91.6)	115.9
Securities Held by Parent									8.9	8.8	13.2
Unrealized Holding Gains and Losses									62.8	(82.8)	129.1
Unrecognized Postretirement Benefit Costs Arising During the Year									(1.1)	37.5	(21.6)
Net Unrecognized Postretirement Benefit Costs									(9.1)	34.7	(30.4)
Foreign Currency Translation Adjustments									0.5	0.4	(0.1)
Reclassification Adjustment for Amounts Included in Net Income									0	0	0
Foreign Currency Translation Adjustment									0.5	0.4	(0.1)
Other Comprehensive Income Tax Benefit (Expense)									54.2	(47.7)	98.6
Other Comprehensive Income (Loss)									(98.4)	87.4	(177.4)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net Income									85.7	114.5	217.7
Unrealized Holding Gains (Losses) Arising During the Year:
Securities Held by Subsidiaries									(150.4)	261.7	(324.9)
Securities Held by Parent									(1.5)	(2)	0
Reclassification Adjustment for Amounts Included in Net Income:
Securities Held by Subsidiaries									(26.9)	(26.8)	(37.9)
Securities Held by Parent									1.5	1.7	0
Unrealized Holding Gains (Losses)									(177.3)	234.6	(362.8)
Unrecognized Postretirement Benefit Costs Arising During the Year									3	(106.4)	61.6
Amortization of Unrecognized Postretirement Benefit Costs									23.1	7.9	25
Net Unrecognized Postretirement Benefit Costs									26.1	(98.5)	86.6
Foreign Currency Translation Adjustments									(1.4)	(1)	0.2
Reclassification Adjustment for Amounts Included in Net Income									0	0	0
Foreign Currency Translation Adjustments									(1.4)	(1)	0.2
Other Comprehensive Income (Loss) Before Income Taxes									(152.6)	135.1	(276)
Income Tax Benefit (Expense):
Securities Held by Subsidiaries									53.4	(92.3)	115.9
Securities Held by Parent									0.5	0.7	0
Securities Held by Subsidiaries									9.4	9.4	13.2
Securities Held by Parent									(0.5)	(0.6)	0
Unrealized Holding Gains and Losses									62.8	(82.8)	129.1
Unrecognized Postretirement Benefit Costs Arising During the Year									(1.1)	37.5	(21.6)
Amortization of Unrecognized Postretirement Benefit Costs									(8)	(2.8)	(8.8)
Net Unrecognized Postretirement Benefit Costs									(9.1)	34.7	(30.4)
Foreign Currency Translation Adjustments									0.5	0.4	(0.1)
Reclassification Adjustment for Amounts Included in Net Income									0	0	0
Foreign Currency Translation Adjustment									0.5	0.4	(0.1)
Other Comprehensive Income Tax Benefit (Expense)									54.2	(47.7)	98.6
Other Comprehensive Income (Loss)									(98.4)	87.4	(177.4)
Total Comprehensive Income (Loss)									$ (12.7)	$ 201.9	$ 40.3

Schedule 2 - Parent Company 139

Schedule 2 - Parent Company Financial Statements - Statements of Cash Flows (Details) - USD ($) $ in Millions	May. 07, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities:
Net Income		$ 4.6	$ 37.9	$ 29.7	$ 13.5	$ 65.4	$ 4.7	$ 9.3	$ 35.1	$ 85.7	$ 114.5	$ 217.7
Adjustment Required to Reconcile Net Income to Net Cash Provided by Operations:
Net Realized (Gains) Losses on Sales of Investments		(9.4)	(5.3)	(34)	(3.4)	(21)	(8)	(3.5)	(6.6)	(52.1)	(39.1)	(99.1)
Net Impairment Losses Recognized in Earnings		14.7	3.3	2.2	7	6.5	$ 3.8	$ 4.1	0.8	27.2	15.2	13.9
Loss from Early Extinguishment of Debt		0	$ 0	$ 0	9.1					9.1	0	0
Other, Net										32.2	16.4	36.1
Net Cash Provided by Operating Activities										215	133.6	122.1
Investing Activities:
Capital Contributed to Subsidiary	$ 75
Sales, Paydowns and Maturities of Fixed Maturities										627.8	573.7	664.4
Sales of Equity Securities										238.4	245.3	182.1
Sales of Fair Value Option Investments										0	6.9	0
Purchases of Fair Value Option Investments										(111)	(60.9)	0
Payments to Acquire Businesses, Net of Cash Acquired										(57.6)	0	0
Change in Short-term Investments										104.9	(63.9)	41.8
Net Cash Provided (Used) by Investing Activities										(28.6)	(104.3)	4.8
Notes Payable Proceeds:
Cash Dividends Paid										(49.7)	(51.8)	(54.9)
Common Stock Repurchases										(45)	(114)	(100.4)
Cash Exercise of Stock Options										3.9	0.5	1.7
Net Cash Used by Financing Activities										(100.8)	(19.7)	(156.7)
Increase (Decrease) in Cash										85.6	9.6	(29.8)
Cash, Beginning of Year					76.1				66.5	76.1	66.5	96.3
Cash, End of Year		161.7				76.1				161.7	76.1	66.5
Purchases of Fixed Maturities										681.3	553	744.5
Parent Company [Member]
Operating Activities:
Net Income										85.7	114.5	217.7
Adjustment Required to Reconcile Net Income to Net Cash Provided by Operations:
Equity in Net Income of Subsidiaries										(133.2)	(147.2)	(256.7)
Cash Dividends from Subsidiaries										285	159.1	95
Cash Contribution to Defined Benefit Plan										0	0	(55)
Net Realized (Gains) Losses on Sales of Investments										0.1	0.2	(0.6)
Net Impairment Losses Recognized in Earnings										1.6	1.7	0
Loss from Early Extinguishment of Debt										9.1	0	0
Other, Net										41.6	10.5	67.3
Net Cash Provided by Operating Activities										289.9	138.8	67.7
Investing Activities:
Capital Contributed to Subsidiary										105	0	0
Capital Distribution from Subsidiary										0	1.1	50.5
Sales, Paydowns and Maturities of Fixed Maturities										11.8	11.5	0
Sales of Equity Securities										9.4	15.1	0
Sales of Fair Value Option Investments										0	6.9	0
Purchases of Fair Value Option Investments										(111)	(60.9)	0
Payments to Acquire Businesses, Net of Cash Acquired										(71)	0	0
Change in Short-term Investments										90.3	(94.3)	52.7
Net Cash Provided (Used) by Investing Activities										(190.3)	(120.6)	103.2
Notes Payable Proceeds:
Net Proceeds from Issuance of Subordinated Debentures										247.3	144	0
Cash Dividends Paid										(49.7)	(51.8)	(54.9)
Common Stock Repurchases										(45)	(114)	(100.4)
Cash Exercise of Stock Options										3.9	0.5	1.7
Excess Tax Benefits on Share Based Awards										0.7	0.2	1.3
Net Cash Used by Financing Activities										(101.6)	(21.1)	(152.3)
Increase (Decrease) in Cash										(2)	(2.9)	18.6
Cash, Beginning of Year					$ 17.9				$ 20.8	17.9	20.8	2.2
Cash, End of Year		$ 15.9				$ 17.9				15.9	17.9	20.8
Purchases of Fixed Maturities										14.8	0	0
Notes Payable Payments:
Repayments of Debt										$ 258.8	$ 0	$ 0

Schedule 3 - Supplementary I140

Schedule 3 - Supplementary Insurance Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Supplementary Insurance Information, by Segment [Line Items]
Premiums		$ 2,009.6	$ 1,862.2	$ 2,025.8
Other Income		3.7	1.4	0.8
Net Investment Income		302.6	309.1	314.7
Insurance Claims and Policyholders' Benefits		1,467.5	1,261.7	1,357.2
Amortization of Deferred Policy Acquisition Costs		257.4	235.4	253.9
Other Insurance Expenses		387.8	393	400.5
Deferred Policy Acquisition Costs		316.4	303.3
Insurance Reserves		4,203.8	4,007.6
Unearned Premiums		613.1	536.9
Property and Casualty Insurance [Member]
Supplementary Insurance Information, by Segment [Line Items]
Premiums		1,415.2	1,249.5	1,392.9
Premiums Written		1,406.2	1,189.1	1,342.2
Other Income		0.6	0.5	0.5
Net Investment Income		73.3	72.7	90.9
Insurance Claims and Policyholders' Benefits		1,086.2	887.3	969.3
Amortization of Deferred Policy Acquisition Costs		213.1	187.5	207.2
Other Insurance Expenses		155	166.2	168.2
Deferred Policy Acquisition Costs		80.7	78.2
Insurance Reserves		800.5	651.1
Unearned Premiums		586.1	509.7
Life and Health Insurance [Member]
Supplementary Insurance Information, by Segment [Line Items]
Premiums	[1]	594.4	612.7	632.9
Other Income	[1]	2.4	0.9	0.2
Net Investment Income	[1]	214.2	218.7	209.9
Insurance Claims and Policyholders' Benefits	[1]	381.3	374.4	387.9
Amortization of Deferred Policy Acquisition Costs	[1]	44.3	47.9	46.7
Other Insurance Expenses	[1]	275.7	268.1	271.5
Deferred Policy Acquisition Costs	[1]	235.7	225.1
Insurance Reserves	[1]	3,346.2	3,278.2
Unearned Premiums	[1]	27	27.2
Other Segments [Member]
Supplementary Insurance Information, by Segment [Line Items]
Premiums		0	0	0
Other Income		0.7	0	0.1
Net Investment Income		15.1	17.7	13.9
Insurance Claims and Policyholders' Benefits		0	0	0
Amortization of Deferred Policy Acquisition Costs		0	0	0
Other Insurance Expenses		(42.9)	(41.3)	$ (39.2)
Deferred Policy Acquisition Costs		0	0
Insurance Reserves		57.1	78.3
Unearned Premiums		$ 0	$ 0
[1]	The Company’s Life & Health Insurance employee-agents also market certain property and casualty insurance products under common management. Accordingly, the Company includes the results of these property and casualty insurance products in its Life & Health Insurance segment.

Schedule 4 - Reinsurance Sch141

Schedule 4 - Reinsurance Schedule (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums, Life Insurance in Force	$ 20,209.8				$ 20,565.9				$ 20,209.8	$ 20,565.9	$ 21,006
Direct Premiums Earned									1,970.1	1,831.1	2,007
Ceded Premiums, Life Insurance in Force	514.2				541.5				514.2	541.5	576.4
Ceded to Other Companies									20.6	26	33.9
Assumed Premiums, Life Insurance in Force	205.7				217.8				205.7	217.8	229.5
Assumed Premiums Earned									60.1	57.1	52.7
Premiums, Net, Life Insurance in Force	19,901.3				20,242.2				19,901.3	20,242.2	20,659.1
Net Amount	$ 541.5	$ 536.7	$ 500.1	$ 431.3	$ 451.5	$ 462.8	$ 470.3	$ 477.6	$ 2,009.6	$ 1,862.2	$ 2,025.8
Life Insurance in Force Premiums, Percentage Assumed to Net	1.00%				1.10%				1.00%	1.10%	1.10%
Premiums, Percentage Assumed to Net									3.00%	3.10%	2.60%
Life Insurance Product Line [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									$ 374.1	$ 387.5	$ 392.4
Ceded to Other Companies									1.4	1.5	1.5
Assumed Premiums Earned									1.4	1.6	1.8
Net Amount									$ 374.1	$ 387.6	$ 392.7
Premiums, Percentage Assumed to Net									0.40%	0.40%	0.50%
Accident and Health Insurance [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									$ 139.8	$ 146.3	$ 161.9
Ceded to Other Companies									0.5	0.5	0.6
Assumed Premiums Earned									5.6	2.8	0.1
Net Amount									$ 144.9	$ 148.6	$ 161.4
Premiums, Percentage Assumed to Net									3.90%	1.90%	0.10%
Property, Liability and Casualty Insurance [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									$ 1,456.2	$ 1,297.3	$ 1,452.7
Ceded to Other Companies									18.7	24	31.8
Assumed Premiums Earned									53.1	52.7	50.8
Net Amount									$ 1,490.6	$ 1,326	$ 1,471.7
Premiums, Percentage Assumed to Net									3.60%	4.00%	3.50%