2018 TD Waterhouse US 333-203519 S1 Combined Document

74.1

Other comprehensive income (loss)

(83.0)

(100.3)

Balance at the end of the period at Dec. 31, 2015

770.6

5.0

515.6

66.5

183.5

Equity

309.5

^[1]

(890.0)

(514.0)

(376.0)

Other comprehensive income (loss)

54.3

(79.8)

Balance at the end of the period at Dec. 31, 2016

164.6

5.0

55.9

0.0

103.7

Equity

78.9

Other comprehensive income (loss)

(61.0)

^[1]

(61.0)

24.5

Balance at the end of the period at Dec. 31, 2017

$ 207.0

$ 5.0

$ 55.9

$ 17.9

$ 128.2

[1]	Dividends are required to be deducted from retained earnings and when depleted, deducted from additional paid-in capital.

XML 1021 R8.htm IDEA: XBRL DOCUMENT

Statements of Cash Flows - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Operating activities

Noncash revenues, expenses, gains and losses included in income:

$ 78.9

$ 309.5

$ 74.1

Deferred tax expense (benefit)

49.5

(65.2)

11.2

Amortization of deferred gain and gains on disposal of businesses

(97.8)

(364.5)

(9.1)

Depreciation and amortization

(0.2)

1.8

4.7

Net realized gains on investments

^[1]

(9.7)

(162.9)

(10.0)

Change in securities classified as trading

^[1]

25.2

(29.7)

0.0

Goodwill impairment

0.0

17.3

0.0

Changes in operating assets and liabilities:

Change in reinsurance recoverable

3.0

(7.6)

(0.1)

Change in insurance policy reserves and expenses

(91.6)

(76.2)

(104.9)

Change in accounts payable and other liabilities

(7.9)

(29.8)

7.3

Change in income taxes

(6.4)

(1.4)

3.2

Other

9.7

12.0

(3.0)

Net cash used in operating activities

(47.3)

(396.7)

(26.6)

Sales of:

Fixed maturity securities available for sale

148.3

265.0

266.5

Equity securities available for sale

12.2

34.5

44.5

Other invested assets

4.9

16.8

85.8

Subsidiary, net of cash transferred

^[1]

0.0

880.5

0.0

Maturities, calls, prepayments, and scheduled redemption of:

0.0

51.2

0.0

Fixed maturity securities available for sale

44.7

66.3

109.8

Fixed maturity securities available for sale

28.8

27.9

123.3

Purchases of:

(177.4)

(478.1)

(308.2)

Equity securities available for sale

(0.3)

(39.9)

(64.7)

Change in short-term investments

(10.5)

(8.4)

(43.7)

Other invested assets

(4.8)

(2.6)

(6.7)

(3.8)

(145.0)

(44.6)

Change in collateral held under securities lending

0.0

42.9

Change in policy loans

0.7

1.2

1.6

Net cash provided by investing activities

42.8

669.4

206.5

Financing activities

Cash dividends paid

(1.9)

(379.4)

(83.0)

Change in obligation under securities lending

^[1]

0.0

54.3

0.0

0.0

(42.9)

Net cash used in financing activities

(1.9)

(325.1)

(125.9)

Cash included in held for sale assets

0.0

1.2

(1.2)

Change in cash and cash equivalents

(6.4)

(51.2)

52.8

Cash and cash equivalents at beginning of period

8.9

60.1

7.3

Cash and cash equivalents at end of period

2.5

8.9

60.1

Supplemental information:

Income taxes paid

$ 4.3

$ 273.2

$ 26.6

[1]	from the sale of Assurant's Employee Benefits segment mainly through reinsurance transactions.

XML 1022 R9.htm IDEA: XBRL DOCUMENT

Nature of Operations and Items Impacting Basis of Presentation

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

NATURE OF OPERATIONS AND ITEMS IMPACTING BASIS OF PRESENTATION

The Company is a wholly-owned subsidiary of the Parent. The Parent’s common stock is traded on the New York Stock Exchange under the symbol AIZ.

The Company distributes its products in the District of Columbia and in all U.S. states except New York.

The following represents a summary of the pre-tax gain recognized by transaction component, as well as the related classification within the Financial Statements:



	Years Ended December 31,
	2017		2016

Gain on sale of entities	$	—	$	6.6
Novations, resulting in recognized gains (a)	—		59.1
Loss on retroactive reinsurance component, before realized gains (b)	—		(109.6		)
Net loss prior to realized gains on transferred securities supporting retroactive component (c)	—		(43.9		)
Realized gains on transferred securities supporting retroactive	—		141.5
Amortization of deferred gains (d)	90.0		356.1
Total	$	90.0	$	453.7


(a)	Novations of certain insurance policies directly to Sun Life allowed for immediate gain recognition.

(b)


(c)	Amount classified within underwriting, general and administrative expenses in the statements of operations.


(d)	Amount classified as amortization of deferred gains and gains on disposal of businesses within the statements of operations. The year ended December 31, 2017 amount includes subsequent novations of $1.4 million that allowed immediate gain recognition.



	As of and for the year ended December 31, 2017
	Before Adjustment		Adjustment			Reported
Balance sheet:
Assets
Other assets	$	20.3	$	27.1		$	47.4
Total assets	$	6,313.0	$	27.1		$	6,340.1

Liabilities
Unearned premiums	27.4		27.1			54.5
Total assets	$	6,106.0	$	27.1		$	6,133.1

Statement of operations:
Revenues
Net earned premiums	$	5.8	$	(0.3	)	$	5.5
Fees and other income	4.0		25.0			29.0
Total revenues	$	181.5	$	24.7		$	206.2

Benefits, losses and expenses
Policyholder benefits	$	35.7	$	22.9		$	58.6
Underwriting, general, and administrative expenses	20.7		1.8			22.5
Total benefits, losses, and expenses	$	56.4	$	24.7		$	81.1

The change has no net impact on the balance sheet or statement of operations. The Company did not change prior year presentation for this change as it was deemed immaterial to those periods.

XML 1023 R10.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Amounts are presented in United States of America (“U.S.”) dollars and all amounts are in millions, except for number of shares, per share amounts, number of securities and number of loans. Use of Estimates The preparation of Financial Statements requires management to make estimates and assumptions that affect the reported amounts. The items affected by the use of estimates include but are not limited to, investments, reinsurance recoverables, other assets, future policy benefits and expenses, unearned premiums, claims and benefits payable, deferred gain on disposal of businesses, and commitments and contingencies. The estimates are sensitive to market conditions, investment yields, mortality, morbidity, commissions and other acquisition expenses, policyholder behavior and other factors. Actual results could differ from the estimates recorded. The Company believes all amounts reported are reasonable and adequate. Fair Value The Company uses an exit price for its fair value measurements. An exit price is defined as the amount received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In measuring fair value, the Company gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See Note 4 for further information. Investments Fixed maturity and equity securities are classified as available for sale, as defined in the investments guidance, and reported at fair value. If the fair value is higher than the amortized cost for fixed maturity securities or the cost for equity securities, the excess is an unrealized gain; and, if lower than cost, the difference is an unrealized loss. Net unrealized gains and losses on securities classified as available for sale, less deferred income taxes, are included in accumulated other comprehensive income (“AOCI”). Commercial mortgage loans on real estate are reported at unpaid balances, adjusted for amortization of premium or discount, less allowance for losses. The allowance is based on management’s analysis of factors including actual loan loss experience, specific events based on geographical, political or economic conditions, industry experience, loan groupings that have probable and estimable losses and individually impaired loan loss analysis. A loan is considered individually impaired when it becomes probable the Company will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the loan agreement. Indicative factors of impairment include, but are not limited to, whether the loan is current, the value of the collateral and the financial position of the borrower. If a loan is individually impaired, the Company uses one of the following valuation methods based on the individual loan’s facts and circumstances to measure the impairment amount: (1) the present value of expected future cash flows, (2) the loan's observable market price, or (3) the fair value of collateral. Changes in the allowance for loan losses are recorded in net realized losses on investments, excluding other-than-temporary impairment (“OTTI”) losses. The Company places loans on non-accrual status after 90 days of delinquent payments (unless the loans are both well secured and in the process of collection). A loan may be placed on non-accrual status before this time if information is available that suggests its impairment is probable. Short-term investments include money market funds and short maturity investments. These amounts are reported at cost or amortized cost, which approximates fair value. Other investments consist primarily of investments in joint ventures and partnerships. The joint ventures and partnerships are valued according to the equity method of accounting. In applying the equity method, the Company uses financial information provided by the investee, generally on a three month lag. Realized gains and losses on sales of investments are recognized on the specific identification basis. Investment income is recorded as earned and reported net of investment expenses. The Company uses the interest method to recognize interest income on its commercial mortgage loans. The Company anticipates prepayments of principal in the calculation of the effective yield for mortgage-backed securities and structured securities. The retrospective method is used to adjust the effective yield. Total Other-Than-Temporary Impairment Losses For debt securities with credit losses and non-credit losses or gains, total OTTI losses is the total of the decline in fair value from either the most recent OTTI determination or a prior period end in which the fair value declined until the current period end valuation date. This amount does not include any securities that had fair value increases. For equity securities and debt securities that the Company has the intent to sell or if it is more likely than not that it will be required to sell for equity securities that have an OTTI or for debt securities if there are only credit losses, total OTTI losses is the total amount by which the fair value of the security is less than its amortized cost basis at the period end valuation date and the decline in fair value is deemed to be other-than-temporary. When a decline in value is considered to be other-than-temporary for equity method investments, the carrying value of these investments is written down, or impaired, to fair value. Cash and Cash Equivalents The Company considers cash on hand, all operating cash and working capital cash to be cash equivalents. These amounts are carried at cost, which approximates fair value. Reinsurance Reinsurance recoverables include amounts related to paid benefits and estimated amounts related to unpaid policy and contract claims, future policyholder benefits and policyholder contract deposits. The cost of reinsurance is recognized over the terms of the underlying reinsured policies using assumptions consistent with those used to account for the policies. Amounts recoverable from reinsurers are estimated in a manner consistent with claim and claim adjustment expense reserves or future policy benefits reserves and are reported in the balance sheets. The cost of reinsurance related to long-duration contracts is recognized over the life of the underlying reinsured policies. The ceding of insurance does not discharge the Company’s primary liability to insureds, thus a credit exposure exists to the extent that any reinsurer is unable to meet the obligation assumed in the reinsurance agreements. To mitigate this exposure to reinsurance insolvencies, the Company evaluates the financial condition of its reinsurers and holds collateral (in the form of funds withheld, trusts and letters of credit) as security under the reinsurance agreements. An allowance for doubtful accounts is recorded on the basis of periodic evaluations of balances due from reinsurers (net of collateral), reinsurer solvency, management’s experience and current economic conditions. Funds withheld under reinsurance represent amounts contractually held from assuming companies in accordance with reinsurance agreements. Reinsurance premiums assumed are calculated based upon payments received from ceding companies together with accrual estimates, which are based on both payments received and in- force policy information received from ceding companies. Any subsequent differences arising on such estimates are recorded in the period in which they are determined. Other Assets Other assets include prepaid items, deferred acquisition costs, value of business acquired in acquisitions and premiums and accounts receivable, net. Separate Accounts Assets and liabilities associated with separate accounts relate to premium and annuity considerations for variable life and annuity products for which the contract-holder, rather than the Company, bears the investment risk. Separate account assets (with matching liabilities) are reported at fair value. Revenues and expenses related to the separate account assets and liabilities, to the extent of benefits paid or provided to the separate account policyholders, are excluded from the amounts reported in the accompanying statements of operations because the accounts are administered by reinsurers. Reserves Reserves are established using generally accepted actuarial methods and reflect judgments about expected future claim payments. Factors used in their calculation include experience derived from historical claim payments and actuarial assumptions. Calculations incorporate assumptions about the incidence of incurred claims, the extent to which all claims have been reported, internal claims processing charges and other relevant factors. While the methods of making such estimates and establishing the related liabilities are periodically reviewed and updated, the estimation of reserves includes an element of uncertainty given that management is using historical information and methods to project future events and reserve outcomes. The recorded reserves represent our best estimates at a point in time of the ultimate costs of settlement and administration of a claim or group of claims based upon actuarial assumptions and projections using facts and circumstances known at the time of calculation. The adequacy of reserves may be impacted by future trends in claims severity, frequency, judicial theories of liability and other factors. These variables are affected by both external and internal events, including but not limited to: changes in the economic cycle, inflation, natural or human-made catastrophes, judicial trends, legislative changes and claims handling procedures. Many of these items are not directly quantifiable. Reserve estimates are refined as experience develops. Adjustments to reserves, both positive and negative, are reflected in the statement of operations in the period in which such estimates are updated. Because establishment of reserves is an inherently complex process involving significant judgment, there can be no certainty that future settlement amounts for claims incurred through the financial reporting date will not vary from reported claims reserves. Future loss development could require reserves to be increased or decreased, which could have a material effect on our earnings in the periods in which such increases or decreases are made. However, based on information currently available, we believe our reserve estimates are adequate. Long Duration Contracts Future policy benefits and expense reserves for preneed investment-type annuities, and the variable life insurance and investment-type annuity contracts consist of policy account balances before applicable surrender charges and certain deferred policy initiation fees that are being recognized in income over the terms of the policies. Policy benefits charged to expense during the period include amounts paid in excess of policy account balances and interest credited to policy account balances. An unearned revenue reserve is also recorded for those preneed investment-type annuities which represent the balance of the excess of gross premiums over net premiums that is still recognized in future years’ income in a constant relationship to estimated gross profits. Future policy benefits and expense reserves for preneed life insurance contracts issued prior to 2009 are reported at the present value of future benefits to policyholders and related expenses less the present value of future net premiums. Reserve assumptions are selected using best estimates for expected investment yield, inflation, mortality and withdrawal rates. These assumptions reflect current trends, are based on Company experience and include provision for possible unfavorable deviation. An unearned revenue reserve is also recorded for these contracts which represents the balance of the excess of gross premiums over net premiums that is still to be recognized in future years’ income in a constant relationship to insurance in force. The policies fully covered by reinsurance and certain life, annuity and group life conversion policies no longer offered are equal to the present value of future benefits to policyholders plus related expenses less the present value of the future net premiums. These amounts are estimated based on assumptions as to the expected investment yield, inflation, mortality, morbidity and withdrawal rates as well as other assumptions that are based on the Company’s experience. These assumptions reflect anticipated trends and include provisions for possible unfavorable deviations. Changes in the estimated liabilities are reported as a charge or credit to policyholder benefits as the estimates are revised. Short Duration Contracts The Company’s short duration contracts include accidental death products, former AEB group term life, group disability, dental, and vision contracts and medical contracts no longer offered. For short duration contracts, claims and benefits payable reserves are recorded when insured events occur. The liability is based on the expected ultimate cost of settling the claims. The claims and benefits payable reserves include: (1) case reserves for known but unpaid claims as of the balance sheet date; (2) IBNR reserves for claims where the insured event has occurred but has not been reported to the Company as of the balance sheet date; and (3) loss adjustment expense reserves for the expected handling costs of settling the claims. Changes in the estimated liabilities are recorded as a charge or credit to policyholder benefits as estimates are revised. Contingencies A loss contingency is recorded if reasonably estimable and probable. The Company establishes reserves for these contingencies at the best estimate, or if no one estimated number within the range of possible losses is more probable than any other, the Company records an estimated reserve at the low end of the estimated range. Contingencies affecting the Company primarily relate to litigation matters which are inherently difficult to evaluate and are subject to significant changes. Premiums Long Duration Contracts For traditional life insurance policies previously sold by the preneed business, revenue is recognized when due from policyholders. For investment-type annuity contracts previously sold by the preneed business, revenues consist of charges assessed against policy balances. Premiums for long-term care insurance and traditional life insurance contracts are recognized as revenue when due from the policyholder. For universal life insurance and investment-type annuity contracts, revenues consist of charges assessed against policy balances. Short Duration Contracts The Company’s short duration contracts revenue is recognized over the contract term in proportion to the amount of insurance protection provided. Fees and Other Income Income earned on preneed life insurance policies with discretionary death benefits is presented within fees and other income. Prior to March 1, 2016, the Company also derived fees and other income from providing administrative services related to the AEB business. These fees were recognized monthly when services were performed. Underwriting, General and Administrative Expenses Underwriting, general and administrative expenses consist primarily of commissions, premium taxes, licenses, fees, salaries and personnel benefits, goodwill impairment, amortization of deferred acquisition costs, amortization of value of business acquired and other general operating expenses. Income Taxes The Company reports its taxable income in a consolidated federal income tax return along with other affiliated subsidiaries of the Parent. Income tax expense or benefit is allocated among the affiliated subsidiaries by applying corporate income tax rates to taxable income or loss determined on a separate return basis according to a tax allocation agreement. Entities with losses record current tax benefits to the extent such losses are recognized in the consolidated federal tax return. Current federal income taxes are recognized based upon amounts estimated to be payable or recoverable as a result of taxable operations for the current year. Deferred income taxes are recorded for temporary differences between the financial reporting basis and income tax basis of assets and liabilities, based on enacted tax laws and statutory tax rates applicable to the periods in which the Company expects the temporary differences to reverse. A valuation allowance is established for deferred tax assets when it is more likely than not that an amount will not be realized. The impact of changes in tax rates on all deferred tax assets and liabilities are required to be reflected within income on the enactment date, regardless of the financial statement component where the deferred tax originated. The Company classifies net interest expense related to tax matters and any applicable penalties as a component of income tax expense. Comprehensive Income (Loss) Comprehensive income (loss) is comprised of net income, changes in net unrealized gains and losses on securities classified as available for sale and net unrealized gains and losses on other-than-temporarily impaired securities, less applicable deferred income taxes. Uncollectible Receivable Balance The Company maintains allowances for doubtful accounts for probable losses resulting from the inability to collect payments. Deferred Gain on Disposal of Businesses The applicable gains related to the AEB, LTC and FFG businesses referenced in Note 1 were required to be deferred and reported as liabilities since the form of these sales did not discharge the Company's primary liability to the insureds. The liabilities have been, and will continue to be amortized and recognized as revenue over the estimated life of the contracts’ terms. The Company reviews and evaluates the estimates affecting the deferred gain on disposal of the respective businesses at least annually, and adjusts the revenue recognized accordingly. Leases The Company records expenses for operating leases on a straight-line basis over the lease term. Recent Accounting Pronouncements — Not Yet Adopted Income tax consequences for intra-entity transfers of assets: In October 2016, the Financial Accounting Standards Board (FASB) issued amended guidance on tax accounting for intra-entity transfers of assets. Current guidance prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. The amendments require an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Also, the amended guidance eliminates the exception for an intra-entity transfer of an asset other than inventory. The amended guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. Early adoption is permitted. The adoption of this amended guidance will not have an impact on the Company’s financial position and results of operations. Statement of cash flows presentation and classification: In August 2016, the FASB issued amended guidance on presentation and classification in the statement of cash flows. The amendments address certain specific cash flow issues including debt prepayment and debt extinguishment costs; settlement of zero-coupon or insignificant coupon debt instruments; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies); distributions received from equity method investees; beneficial interests in securitization transactions; and guidance related to the identification of the primary source for separately identifiable cash flows. The amended guidance is effective in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. The adoption of this amended guidance will not have an impact on the Company’s financial position and results of operations. Reporting credit losses of assets held at amortized cost: In June 2016, the FASB issued amended guidance on reporting credit losses for assets held at amortized cost and available for sale debt securities. For assets held at amortized cost, the amended guidance eliminates the probable recognition threshold and instead requires an entity to reflect the current estimate of all expected credit losses. For available for sale debt securities, credit losses will be measured in a manner similar to current accounting requirements; however, the amended guidance requires that credit losses be presented as an allowance rather than as a permanent impairment. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The amended guidance is effective in fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2020. Early adoption is permitted as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is evaluating the requirements of this amended guidance and the potential impact on the Company’s financial position and results of operations. Financial instruments measurement and classification: In January 2016, the FASB issued amended guidance on the measurement and classification of financial instruments. This amended guidance requires that all equity investments be measured at fair value with changes in fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the fair value option has been elected for financial liabilities. The amendments eliminate the requirement to disclose the methods and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost, however public business entities will be required to use the exit price when measuring the fair value of financial instruments measured at amortized cost for disclosure purposes. In addition, the new guidance requires financial assets and financial liabilities to be presented separately in the notes to the financial statements, grouped by measurement category and form of financial asset. The amended guidance is effective in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. Upon adoption, all common and preferred stocks will be measured at fair value through the income statement. For certain private equity investments recorded in Other investments, the Company will elect the measurement alternative to record these investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. The measurement alternative will be applied on a prospective basis. Upon adoption, the Company will record a cumulative adjustment to increase retained earnings by $8.1 million. This entry represents a reclassification from AOCI of the unrealized gains on common and preferred stock as of the date of adoption. Revenue recognition from contracts with customers: In May 2014, the FASB issued amended guidance on revenue recognition from contracts with customers, which is required to be implemented in 2018 for public companies. Further amendments and technical corrections were made to the amended guidance during 2016 and 2017. The amended guidance, which the Company will adopt effective January 1, 2018, affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards. Insurance and similar contracts issued by insurance entities are within the scope of other standards and therefore are specifically excluded from the scope of the amended revenue recognition guidance. As such, the amended guidance will not have an impact on the Company’s financial position and results of operations.

XML 1024 R11.htm IDEA: XBRL DOCUMENT

Investments

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Investments

INVESTMENTS

The following tables show the cost or amortized cost, gross unrealized gains and losses, fair value and OTTI of the Company's fixed maturity and equity securities as of the dates indicated:



	December 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		OTTI in AOCI (a)
Fixed maturity securities:
United States Government and government agencies and authorities	$	3.1	$	0.1	$	—		$	3.2	$	—
States, municipalities and political subdivisions	4.7		0.9		—			5.6		—
Foreign governments	8.4		2.1		—			10.5		—
Asset-backed	28.7		0.3		—			29.0		—
Commercial mortgage-backed	3.5		—		(0.2		)	3.3		—
Residential mortgage-backed	39.6		2.5		(0.4		)	41.7		1.6
U.S. corporate	588.6		153.6		(0.1		)	742.1		12.5
Foreign corporate	126.3		31.6		—			157.9		—
Total fixed maturity securities	$	802.9	$	191.1	$	(0.7	)	$	993.3	$	14.1
Equity securities:
Common stocks	$	0.1	$	0.5	$	—		$	0.6	$	—
Non-redeemable preferred stocks	73.9		12.0		(0.1		)	85.8		—
Total equity securities	$	74.0	$	12.5	$	(0.1	)	$	86.4	$	—



	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		OTTI in AOCI (a)
Fixed maturity securities:
United States Government and government agencies and authorities	$	1.9	$	0.1	$	—		$	2.0	$	—
States, municipalities and political subdivisions	9.9		0.9		—			10.8		—
Foreign governments	9.3		2.0		—			11.3		—
Asset-backed	0.2		—		—			0.2		—
Commercial mortgage-backed	3.4		—		(0.2		)	3.2		—
Residential mortgage-backed	33.7		3.3		(0.1		)	36.9		2.0
U.S. corporate	667.0		127.7		(1.3		)	793.4		11.2
Foreign corporate	146.1		24.9		(0.1		)	170.9		—
Total fixed maturity securities	$	871.5	$	158.9	$	(1.7	)	$	1,028.7	$	13.2
Equity securities:
Common stocks	$	0.1	$	0.3	$	—		$	0.4	$	—
Non-redeemable preferred stocks	85.6		7.8		(0.2		)	93.2		—
Total equity securities	$	85.7	$	8.1	$	(0.2	)	$	93.6	$	—



	Cost or Amortized Cost		Fair Value
Due in one year or less	$	7.3	$	7.4
Due after one year through five years	73.9		79.5
Due after five years through ten years	93.4		106.6
Due after ten years	556.5		725.8
Total	731.1		919.3
Asset-backed	28.7		29.0
Commercial mortgage-backed	3.5		3.3
Residential mortgage-backed	39.6		41.7
Total	$	802.9	$	993.3

Major categories of net investment income were as follows:



	Years Ended December 31,
	2017			2016			2015
Fixed maturity securities	$	52.4		$	74.1		$	130.0
Equity securities	5.4			7.0			9.2
Commercial mortgage loans on real estate	5.6			10.2			30.4
Policy loans	0.4			0.5			0.5
Other investments	2.5			7.7			5.3
Cash and cash equivalents	—			0.3			—
Total investment income	66.3			99.8			175.4
Investment expenses	(2.1		)	(2.0		)	(5.9		)
Net investment income	$	64.2		$	97.8		$	169.5

No material investments of the Company were non-income producing for the years ended December 31, 2017, 2016 and 2015.



	For the Years Ended December 31,
	2017			2016			2015
Proceeds from sales	$	218.7		$	1,939.4		$	312.0
Gross realized gains (a)	7.1			168.9			9.7
Gross realized losses (b)	(0.4		)	(19.9		)	(4.3		)

(a) Year ended December 31, 2016 gross realized gains includes $145.6 million related to the sale of Assurant Employee Benefits as described in Note 1.

(b) Year ended December 31, 2016 gross realized losses includes $15.9 million related to the sale of Assurant Employee Benefits as described in Note 1.

For securities sold at a loss during 2017, the average period of time these securities were trading continuously at a price below book value was 2 months.

The following table sets forth the net realized gains (losses), including other-than-temporary impairments, recognized in the statement of operations as follows:



	Years Ended December 31,
	2017			2016			2015
Net realized gains (losses) related to sales and other:
Fixed maturity securities	$	6.1		$	143.6		$	3.1
Equity securities	0.2			5.7			1.8
Commercial mortgage loans on real estate	1.3			13.6			0.4
Other investments	2.2			2.2			11.7
Total net realized gains related to sales and other (a)	9.8			165.1			17.0
Net realized losses related to other-than-temporary impairments:
Fixed maturity securities	(0.1		)	(0.3		)	(2.4		)
Other investments	—			(1.9		)	(4.6		)
Total net realized losses related to other-than-temporary impairments	(0.1		)	(2.2		)	(7.0		)
Total net realized gains	$	9.7		$	162.9		$	10.0

(a) The year ended December 31, 2016 net realized gains includes $141.5 million related to the sale of Assurant Employee Benefits as described in Note 1.

Other-Than-Temporary Impairments



	Years Ended December 31,
	2017			2016			2015
Balance, beginning of year	$	11.1		$	13.6		$	13.5
Additions for credit loss impairments recognized in the current period on securities previously impaired	—			0.3			—
Additions for credit loss impairments recognized in the current period on securities not previously impaired	—			—			0.7
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security	(0.3		)	(0.5		)	(0.2		)
Reductions for credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(0.1		)	(2.3		)	(0.4		)
Balance, end of year	$	10.7		$	11.1		$	13.6

The investment category and duration of the Company's gross unrealized losses on fixed maturity securities and equity securities at December 31, 2017 and 2016 were as follows:



	December 31, 2017
	Less than 12 months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Fixed maturity securities:
Commercial mortgage-backed	$	—	$	—		$	3.3	$	(0.2	)	$	3.3	$	(0.2	)
Residential mortgage-backed	9.5		(0.4		)	—		—			9.5		(0.4		)
U.S. corporate	—		—			1.5		(0.1		)	1.5		(0.1		)
Total fixed maturity securities	$	9.5	$	(0.4	)	$	4.8	$	(0.3	)	$	14.3	$	(0.7	)
Equity securities:
Non-redeemable preferred stocks	$	2.5	$	(0.1	)	$	—	$	—		$	2.5	$	(0.1	)



	December 31, 2016
	Less than 12 months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Fixed maturity securities:
Commercial mortgage-backed	$	3.2	$	(0.2	)	$	—	$	—		$	3.2	$	(0.2	)
Residential mortgage-backed	1.9		(0.1		)	—		—			$	1.9	(0.1		)
U.S. corporate	55.3		(1.1		)	1.2		(0.2		)	$	56.5	(1.3		)
Foreign corporate	—		—			2.0		(0.1		)	$	2.0	(0.1		)
Total fixed maturity securities	$	60.4	$	(1.4	)	$	3.2	$	(0.3	)	$	63.6	$	(1.7	)
Equity securities:
Non-redeemable preferred stocks	$	13.4	$	(0.2	)	$	—	$	—		$	13.4	$	(0.2	)

The cost or amortized cost and fair value of available-for-sale fixed maturity securities in an unrealized loss position at December 31, 2017, by contractual maturity, is shown below:



	Cost or Amortized Cost		Fair Value
Due in one year through five years	1.6		1.5
Commercial mortgage-backed	3.5		3.3
Residential mortgage-backed	9.9		9.5
Total	$	15.0	$	14.3

The following summarizes our loan-to-value and average debt-service coverage ratios as of the dates indicated:



	December 31, 2017
Loan-to-Value	Carrying Value			% of Gross Mortgage Loans		Debt- Service Coverage Ratio
70% and less	$	79.1		100.0	%	2.11
Less valuation allowance	(0.4		)
Net commercial mortgage loans on real estate	$	78.7



	December 31, 2016
Loan-to-Value	Carrying Value			% of Gross Mortgage Loans		Debt- Service Coverage Ratio
70% and less	$	92.3		92.2	%	1.80
81 - 95%	3.0			3.0	%	1.11
Greater than 95%	4.8			4.8	%	3.86
Gross commercial mortgage loans on real estate	100.1			100.0	%	1.88
Less valuation allowance	(1.7		)
Net commercial mortgage loans on real estate	$	98.4

In 2017, the loan valuation allowance was decreased by $1.3 million based upon the valuation allowance analysis.

The Company held fixed maturity securities of $6.2 million and $6.1 million at December 31, 2017 and 2016, respectively, on deposit with various governmental authorities as required by law.

XML 1025 R12.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Disclosures

FAIR VALUE DISCLOSURES

Fair Values, Inputs and Valuation Techniques for Financial Assets and Liabilities Disclosures

The levels of the fair value hierarchy are described below:

• Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company can access.



	December 31, 2017
	Total		Level 1			Level 2			Level 3
Financial Assets
Fixed maturity securities:
United States Government and government agencies and authorities	$	3.2	$	—		$	3.2		$	—
State, municipalities and political subdivisions	5.6		—			5.6			—
Foreign governments	10.5		—			10.5			—
Asset-backed	29.0		—			24.3			4.7
Commercial mortgage-backed	3.3		—			—			3.3
Residential mortgage-backed	41.7		—			41.7			—
U.S. corporate	742.1		—			741.9			0.2
Foreign corporate	157.9		—			148.6			9.3
Equity securities:
Common stocks	0.6		0.6			—			—
Non-redeemable preferred stocks	85.8		—			84.7			1.1
Other investments	6.4		6.4		(a)	—			—
Other assets	0.2		—			—			0.2		(d)
Assets held in separate accounts	1,644.3		1,600.8		(b)	43.5		(c)	—
Total financial assets	$	2,730.6	$	1,607.8		$	1,104.0		$	18.8
Financial Liabilities
Liabilities related to separate accounts	$	1,644.3	$	1,600.8	(b)	$	43.5	(c)	$	—



	December 31, 2016
	Total		Level 1			Level 2			Level 3
Financial Assets
Fixed maturity securities:
United States Government and government agencies and authorities	$	2.0	$	—		$	2.0		$	—
State, municipalities and political subdivisions	10.8		—			10.8			—
Foreign governments	11.3		—			11.3			—
Asset-backed	0.2		—			0.2			—
Commercial mortgage-backed	3.2		—			—			3.2
Residential mortgage-backed	36.9		—			36.9			—
U.S. corporate	793.4		—			789.8			3.6
Foreign corporate	170.9		—			160.9			10.0
Equity securities:
Common stocks	0.4		0.4			—			—
Non-redeemable preferred stocks	93.2		—			92.1			1.1
Other investments	30.2		2.7		(a)	27.5		(c)	—
Cash equivalents	6.6		6.6		(a)	—			—
Other assets	0.3		—			—			0.3		(d)
Assets held in separate accounts	1,499.7		1,438.6		(b)	61.1		(c)	—
Total financial assets	$	2,659.1	$	1,448.3		$	1,192.6		$	18.2
Financial Liabilities
Liabilities related to separate accounts	$	1,499.7	$	1,438.6	(b)	$	61.1	(c)	$	—

(a) Mainly includes money market funds.

(b) Mainly includes mutual funds.

(d) Mainly includes derivatives.

The following tables summarize the change in balance sheet carrying value associated with Level 3 financial assets carried at fair value during the years ended December 31, 2017 and 2016:



	Year Ended December 31, 2017
	Balance, beginning of period		Total gains (losses) (realized/ unrealized) included in earnings (1)			Net unrealized (losses) gains included in other comprehensive income (2)			Purchases		Sales			Transfers in (3)		Transfers out (3)			Balance, end of period
Fixed maturity securities:
States, municipalities and political subdivisions	$	—	$	0.1		$	(0.1	)	$	29.0	$	(7.4	)	$	—	$	(16.9	)	4.7
Commercial mortgage-backed	3.2		0.1			—			—		—			—		—			3.3
U.S. corporate	3.6		—			0.3			—		(0.6		)	0.3		(3.4		)	0.2
Foreign corporate	10.0		—			(0.1		)	—		(0.6		)	—		—			9.3
Equity securities:
Non-redeemable preferred stocks	1.1		—			—			—		—			—		—			1.1
Other assets	0.3		(0.1		)	—			—		—			—		—			0.2
Total level 3 assets	$	18.2	$	0.1		$	0.1		$	29.0	$	(8.6	)	$	0.3	$	(20.3	)	$	18.8



	Year Ended December 31, 2016
	Balance, beginning of period		Total gains (losses) (realized/ unrealized) included in earnings (1)			Net unrealized losses included in other comprehensive income (2)			Purchases		Sales			Transfers in (3)		Transfers out (3)			Balance, end of period
Fixed maturity securities:
States, municipalities and political subdivisions	$	—	$	—		$	—		$	1.3	$	(1.3	)	$	—	$	—		—
Commercial mortgage-backed	0.1		—			(0.2		)	3.4		(0.1		)	—		—			3.2
U.S. corporate	10.7		0.5			(0.6		)	0.8		(6.3		)	0.1		(1.6		)	3.6
Foreign corporate	15.9		1.1			(0.8		)	—		(6.2		)	—		—			10.0
Equity securities:
Non-redeemable preferred stocks	1.1		—			—			—		—			—		—			1.1
Other assets	0.4		(0.1		)	—			—		—			—		—			0.3
Total level 3 assets	$	28.2	$	1.5		$	(1.6	)	$	5.5	$	(13.9	)	$	0.1	$	(1.6	)	$	18.2

(1) Included as part of net realized gains on investments in the statement of operations.

(2) Included as part of change in unrealized gains on securities in the statement of comprehensive income.

(3) Transfers are primarily attributable to changes in the availability of observable market information and re-evaluation of the observability of pricing inputs.

Level 1 Securities

Level 2 Securities

Other investments and assets/liabilities held in separate accounts: To price the fixed maturity securities in these categories, the pricing service utilizes the standard inputs.

Level 3 Securities

Management evaluates the following factors in order to determine whether the market for a financial asset is inactive. The factors include, but are not limited to:

• There are few recent transactions,

• Little information is released publicly,

• The available prices vary significantly over time or among market participants,

• The prices are stale (i.e., not current), and

• The magnitude of the bid-ask spread.

Illiquidity did not have a material impact in the fair value determination of the Company's financial assets.

Disclosures for Assets Measured at Fair Value on a Non-Recurring Basis

Fair Value of Financial Instruments Disclosures

• Cash and cash equivalents

• Fixed maturity securities

• Equity securities

• Short-term investments

• Other investments

• Other assets

• Assets held in separate accounts

• Liabilities related to separate accounts

In estimating the fair value of the financial instruments that are not recognized or are not carried at fair value in the balance sheets, the Company used the following methods and assumptions:

Policy loans: the carrying value of policy loans reported in the balance sheets approximates fair value.

The following tables disclose the carrying value, fair value amount and hierarchy level of the financial instruments that are not recognized or are not carried at fair value in the balance sheets:



	December 31, 2017
			Fair Value
	Carrying Value		Total		Level 1		Level 2		Level 3
Financial assets:
Commercial mortgage loans on real estate	$	78.7	$	82.7	$	—	$	—	$	82.7
Policy loans	6.7		6.7		6.7		—		—
Other investments	0.2		0.2		—		—		0.2
Total financial assets	$	85.6	$	89.6	$	6.7	$	—	$	82.9
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal) (1)	$	210.5	$	227.5	$	—	$	—	$	227.5



	December 31, 2016
			Fair Value
	Carrying Value		Total		Level 1		Level 2		Level 3
Financial assets:
Commercial mortgage loans on real estate	$	98.4	$	103.0	$	—	$	—	$	103.0
Policy loans	7.4		7.4		7.4		—		—
Other investments	0.2		0.2		—		—		0.2
Total financial assets	$	106.0	$	110.6	$	7.4	$	—	$	103.2
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal) (1)	$	218.1	$	246.0	$	—	$	—	$	246.0

(1) Only the fair value of the Company's policy reserves for investment-type contracts (those without significant mortality or morbidity risk) are reflected in the table above.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

XML 1026 R13.htm IDEA: XBRL DOCUMENT

Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES



	Year Ended December 31,
	2017			2016			2015
Current (benefit) expense	$	(3.3	)	$	271.4		$	29.8
Deferred expense (benefit)	49.5			(65.2		)	11.2
Total income tax expense	$	46.2		$	206.2		$	41.0

A reconciliation of the federal income tax rate to the Company's effective income tax rate follows:



	December 31,
	2017		2016		2015
Federal income tax rate:	35.0	%	35.0	%	35.0	%
Reconciling items:
Dividends-received deduction	(1.2	)%	(0.3	)%	(1.7	)%
TCJA net deferred tax asset revaluation	3.6	%	—	%	—	%
Capital contribution from affiliated entity impacting taxable income	—	%	3.7	%	—	%
Goodwill	—	%	1.2	%	—	%
Nondeductible health insurer fee	—	%	0.5	%	2.3	%
Change in liability for prior years' taxes	(0.5	)%	—	%	0.5	%
Other	0.1	%	(0.1	)%	(0.5	)%
Effective income tax rate	37.0	%	40.0	%	35.6	%

The tax effects of temporary differences that result in significant deferred tax assets and liabilities are as follows:



	December 31,
	2017			2016
Deferred tax assets:
Deferred gain on disposal of businesses	$	22.0		$	70.2
Deferred acquisition costs	13.3			22.8
Investments, net	5.7			17.2
Policyholder and separate account reserves	7.1			13.3
Employee and Post-Retirement Benefits	2.8			4.6
Total deferred tax assets (1)	50.9			128.1
Deferred tax liabilities:
Net unrealized appreciation on securities	(42.6		)	(57.9		)
Other	(1.4		)	(0.7		)
Total deferred tax liabilities (1)	(44.0		)	(58.6		)
Net deferred income tax assets	$	6.9		$	69.5

(1) 2017 reflects the reduction of deferred tax assets and liabilities following the enactment of TCJA.

At December 31, 2017, the Company had no net operating loss, capital loss, or tax credit carryforwards for U.S. federal income tax purposes.

XML 1027 R14.htm IDEA: XBRL DOCUMENT

Stockholder's Equity	12 Months Ended
Stockholder's Equity	Dec. 31, 2017
Equity [Abstract]
Stockholder's Equity	STOCKHOLDER'S EQUITY The Board of Directors of the Company has authorized 1,000,000 shares of common stock with a par value of $5 per share. All shares are issued and outstanding as of December 31, 2017 and 2016. All the outstanding shares at December 31, 2017 are owned by the Parent (see Note 1). The Company paid dividends of $61.0 million, $890.0 million and $83.0 million during the years ended December 31, 2017, 2016 and 2015, respectively. The dividends paid in 2017 consisted of both cash of $1.9 million and investments of $59.1 million. The dividends paid in 2016 consisted of cash of $379.4 million and investments of $510.6 million. The dividends paid in 2015 consisted of cash of $83.0 million. The Company received a capital contribution from an affiliated entity of $54.3 million related to the sale of Assurant Employee Benefits during the year ended December 31, 2016. As described in Note 7, the Company, under state regulatory requirements, is not able to pay any dividends in 2018 without permission from Kansas regulators.

XML 1028 R15.htm IDEA: XBRL DOCUMENT

Statutory Information

12 Months Ended

Dec. 31, 2017

Statutory Information

STATUTORY INFORMATION

The Company's statutory net income and capital and surplus are as follows:



	Years Ended and at December 31,
	2017		2016		2015
Statutory net income	$	106.2	$	481.7	$	71.5
Statutory capital and surplus	$	113.9	$	158.5	$	428.4

XML 1029 R16.htm IDEA: XBRL DOCUMENT

Reinsurance

12 Months Ended

Dec. 31, 2017

Reinsurance Disclosures [Abstract]

Reinsurance

REINSURANCE



	2017		2016
Ceded future policyholder benefits and expenses	$	2,130.0	$	2,150.0
Ceded unearned premium	27.1		27.7
Ceded claims and benefits payable	1,254.7		1,373.7
Ceded paid losses	12.7		13.6
Total	$	3,424.5	$	3,565.0



A. M. Best ratings of reinsurer	Ceded future policyholder benefits and expense		Ceded unearned premiums		Ceded claims and benefits payable		Ceded paid losses		Total
A++ or A+	$	1,531.9	$	26.8	$	1,233.7	$	12.4	$	2,804.8
A or A–	68.4		0.2		1.2		—		69.8
B++ or B+	529.4		0.1		19.8		0.3		549.6
Not rated	0.3		—		—		—		0.3
Total Reinsurance recoverable	$	2,130.0	$	27.1	$	1,254.7	$	12.7	$	3,424.5

The effect of reinsurance on premiums earned and benefits incurred was as follows:



	Years Ended December 31,
	2017									2016									2015
	Long Duration			Short Duration			Total			Long Duration			Short Duration			Total			Long Duration			Short Duration			Total
Direct earned premiums	$	198.0		$	756.9		$	954.9		$	213.7		$	808.0		$	1,021.7		$	209.4		$	843.0		$	1,052.4
Premiums assumed	3.6			0.7			4.3			4.6			54.2			58.8			8.4			151.7			160.1
Premiums ceded	(196.1		)	(757.6		)	(953.7		)	(200.6		)	(699.6		)	(900.2		)	(151.0		)	(14.0		)	(165.0		)
Net earned premiums	$	5.5		$	—		$	5.5		$	17.7		$	162.6		$	180.3		$	66.8		$	980.7		$	1,047.5
Direct policyholder benefits	$	413.6		$	439.5		$	853.1		$	695.8		$	546.9		$	1,242.7		$	414.5		$	550.0		$	964.5
Policyholder benefits assumed	13.4			—			13.4			15.5			25.6			41.1			18.3			147.2			165.5
Policyholder benefits ceded	(372.3		)	(435.6		)	(807.9		)	(672.2		)	(458.9		)	(1,131.1		)	(373.6		)	(6.8		)	(380.4		)
Net policyholder benefits	$	54.7		$	3.9		$	58.6		$	39.1		$	113.6		$	152.7		$	59.2		$	690.4		$	749.6

The Company utilizes ceded reinsurance primarily for loss protection and capital management and business dispositions.

Business Divestitures

As referenced in Note 1, the Company has used reinsurance to exit certain businesses, including for the disposals of AEB, FFG and LTC.



Reinsurer	December 31, 2017		December 31, 2016
John Hancock	$	1,952.7	$	1,908.2
Sun Life	851.9		1,025.0
The Hartford	549.6		558.3
Other reinsurers	70.3		73.5
Total	$	3,424.5	$	3,565.0

Sun Life, John Hancock and The Hartford have paid their obligations when due and there have been no disputes.

XML 1030 R17.htm IDEA: XBRL DOCUMENT

Reserves

12 Months Ended

Dec. 31, 2017

Accumulated Other Comprehensive Income

Reserves

RESERVES

Short Duration Contracts

Disposed and Runoff Short Duration Insurance Lines

Long Duration Contracts

Disposed and Runoff Long Duration Insurance Lines

Preneed Business — no longer offered

Mortality assumptions are based upon pricing assumptions and modified to allow for provisions for adverse deviation. Surrender rates vary by product and are based upon pricing assumptions.

Reserve Roll Forward



	Years Ended December 31,
	2017			2016			2015
Claims and benefits payable, at beginning of year	$	1,412.9		$	1,719.9		$	1,717.9
Less: Reinsurance ceded and other	(1,401.8		)	(384.3		)	(344.7		)
Net claims and benefits payable, at beginning of year	11.1			1,335.6			1,373.2
Incurred losses and loss adjustment expenses related to:
Current year	32.0			181.6			721.0
Prior year's interest	—			9.4			56.7
Prior years	(0.1		)	(40.4		)	(35.0		)
Total incurred losses and loss adjustment expenses	31.9			150.6			742.7
Paid losses and loss adjustment expenses related to:
Current year	29.0			177.2			444.6
Prior years	3.0			1,297.9			335.7
Total paid losses and loss adjustment expenses	32.0			1,475.1			780.3
Net claims and benefits payable, at end of year	11.0			11.1			1,335.6
Plus: Reinsurance ceded and other	1,255.1			1,401.8			384.3
Claims and benefits payable, at end of year	$	1,266.1		$	1,412.9		$	1,719.9

XML 1031 R18.htm IDEA: XBRL DOCUMENT

Accumulated Other Comprehensive Income

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE INCOME

Certain amounts included in the statements of comprehensive income are net of reclassification adjustments. The following tables summarize those reclassification adjustments (net of taxes):



	Year Ended December 31, 2017
	Unrealized gains on securities			OTTI		Accumulated other comprehensive income
Balance at December 31, 2016	$	95.1		$	8.6	$	103.7
Other comprehensive income before reclassifications	27.8			0.6		28.4
Amounts reclassified from accumulated other comprehensive income	(3.9		)	—		(3.9		)
Net current-period other comprehensive income	23.9			0.6		24.5
Balance at December 31, 2017	$	119.0		$	9.2	$	128.2



	Year Ended December 31, 2016
	Unrealized gains on securities			OTTI			Accumulated other comprehensive income
Balance at December 31, 2015	$	174.2		$	9.3		$	183.5
Other comprehensive income (loss) before reclassifications	17.1			(0.3		)	16.8
Amounts reclassified from accumulated other comprehensive income	(96.2		)	(0.4		)	(96.6		)
Net current-period other comprehensive loss	(79.1		)	(0.7		)	(79.8		)
Balance at December 31, 2016	$	95.1		$	8.6		$	103.7



	Year Ended December 31, 2015
	Unrealized gains on securities			OTTI			Accumulated other comprehensive income
Balance at December 31, 2014	$	273.5		$	10.3		$	283.8
Other comprehensive loss before reclassifications	(95.9		)	(1.5		)	(97.4		)
Amounts reclassified from accumulated other comprehensive income	(3.4		)	0.5			(2.9		)
Net current-period other comprehensive loss	(99.3		)	(1.0		)	(100.3		)
Balance at December 31, 2015	$	174.2		$	9.3		$	183.5

The following tables summarize the reclassifications out of accumulated other comprehensive income:



Details about accumulated other comprehensive income components	Amount reclassified from accumulated other comprehensive income									Affected line item in the statement where net income is presented
	Years Ended December 31,
	2017			2016			2015
Unrealized gains on securities	$	(6.0	)	$	(148.0	)	$	(5.2	)	Net realized gains on investments, excluding other-than-temporary impairment losses
	2.1			51.8			1.8			Provision for income taxes
	$	(3.9	)	$	(96.2	)	$	(3.4	)	Net of tax
OTTI	$	—		$	(0.6	)	$	0.8		Portion of net (gain) loss recognized in other comprehensive income, before taxes
	—			0.2			(0.3		)	Provision for income taxes
	$	—		$	(0.4	)	$	0.5		Net of tax
Total reclassifications for the period	$	(3.9	)	$	(96.6	)	$	(2.9	)	Net of tax

XML 1032 R19.htm IDEA: XBRL DOCUMENT

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS The Company receives various services from the Parent and its affiliates. These services include assistance in benefit plan administration, corporate insurance, accounting, tax, information technology, auditing, investment, actuarial and other administrative functions. The net amounts paid for related services and obligations to the Parent and its affiliates for the years ended December 31, 2017, 2016 and 2015, were $8.9 million, $23.1 million and $55.5 million, respectively. The Parent also pays all income tax payments on behalf of the Company. The income tax payments made by the Parent were $3.1 million, $272.8 million and $26.6 million for the years ended December 31, 2017, 2016 and 2015, respectively. The increase in 2016 tax payments relates to the gains resulting from the AEB sale. Administrative expenses allocated for the Company may be greater or less than the expenses that would be incurred if the Company were operating as a separate company.

XML 1033 R20.htm IDEA: XBRL DOCUMENT

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES In December 2017, our Parent sold our principal office in Kansas City, Missouri. At the time of the sale, the Company's lease was cancelled and the subleases transferred to the buyer. The Company will have no future commitments for rent or any future sublease income. Rent expense was $3.5 million, $4.1 million and $6.0 million for 2017, 2016 and 2015, respectively. Sub-lease income was $4.1 million, $4.1 million, and $0.9 million in 2017, 2016 and 2015, respectively. The Company is involved in litigation in the ordinary course of business, both as a defendant and as a plaintiff. The Company may from time to time be subject to a variety of legal and regulatory actions relating to the Company's current and past business operations. Although the Company cannot predict the outcome of any pending or future litigation, examination or investigation, it is possible that the outcome of such matters could have a material adverse effect on the Company's results of operations or cash flows for an individual reporting period. However, based on currently available information, management does not believe that any pending matters are likely to have a material adverse effect, individually or in the aggregate, on the Company's financial condition.

XML 1034 R21.htm IDEA: XBRL DOCUMENT

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS The Warranty Group Acquisition On January 8, 2018, the Parent entered into an Amended and Restated Agreement and Plan of Merger (the “A&R Merger Agreement”), with TWG Holdings Limited, a Bermuda limited company (“TWG Holdings,” and together with its subsidiaries, “TWG”), TWG Re, Ltd., a corporation incorporated in the Cayman Islands (“TWG Re”), Arbor Merger Sub, Inc., a Delaware corporation and a direct wholly owned subsidiary of TWG Holdings (“TWG Merger Sub”) and Spartan Merger Sub, Ltd., a Bermuda exempted limited company and a direct wholly owned subsidiary of Assurant (“Merger Sub”). The A&R Merger Agreement amends and restates in its entirety that certain Agreement and Plan of Merger entered into by the Company, TWG, TWG Re and TWG Merger Sub on October 17, 2017 (the “Original Merger Agreement”). Under the terms of the A&R Merger Agreement and subject to the satisfaction or waiver of the conditions therein, in lieu of the transactions contemplated by the Original Merger Agreement, Assurant will acquire TWG through a transaction in which Merger Sub will merge with and into TWG, with TWG continuing as the surviving corporation and as a wholly owned subsidiary of Assurant. TWG is a global provider of protection plans and related programs and a portfolio company of TPG Capital, a private equity company. As a result of the proposed acquisition, the equity holders of TWG will receive consideration of 10,400,000 shares of Assurant common stock, which represents approximately 19.8% of Assurant’s currently outstanding shares of common stock, and cash. The cash consideration is subject to a collar mechanism based on the change between Assurant’s 10-day volume-weighted average stock price at the time of closing (the “closing price”) and $95.4762, the reference price as set forth in the A&R Merger Agreement. Pursuant to the collar mechanism, the cash consideration may increase or decrease by the value of the difference between the closing price and the reference price if the percentage change is no more than 10% (in either direction). There is no further adjustment to the cash consideration if the percentage change between the two prices is within 10% - 20% (in either direction). In the event that the percentage change is greater than 20% (in either direction), the disadvantaged party may terminate the agreement unless the other party elects to cure by adjusting the consideration to be received by the TWG Holdings equityholders. Assuming an increase or decrease with respect to the reference price of not more than 10%, the total cash consideration would range from approximately $800.0 million to $1.00 billion, depending on Assurant’s stock price at closing. The transaction is valued at $1.90 billion in equity value or $2.50 billion of enterprise value, including TWG's existing debt. The Parent currently expects to finance the cash consideration and repayment of $591.3 million of TWG's existing debt through a combination of external financing and available cash at the holding company at the time of close. The transaction is expected to close in the second quarter of 2018, subject to the receipt of regulatory approvals and other customary closing conditions.

XML 1035 R22.htm IDEA: XBRL DOCUMENT

Schedule I - Summary of Investments Other-Than-Investments in Related Parties

12 Months Ended

Dec. 31, 2017

Summary of Investments, Other than Investments in Related Parties [Abstract]

Schedule I - Summary of Investments Other-Than-Investments in Related Parties

Schedule I — Summary of Investments

Other-Than-Investments in Related Parties



	Cost or Amortized Cost		Fair Value		Amount at which shown in balance sheet
	(in millions)
Fixed maturity securities:
United States Government and government agencies and authorities	$	3.1	$	3.2	$	3.2
States, municipalities and political subdivisions	4.7		5.6		5.6
Foreign governments	8.4		10.5		10.5
Asset-backed	28.7		29.0		29.0
Commercial mortgage-backed	3.5		3.3		3.3
Residential mortgage-backed	39.6		41.7		41.7
U.S. corporate	588.6		742.1		742.1
Foreign corporate	126.3		157.9		157.9
Total fixed maturity securities	802.9		993.3		993.3
Equity securities:
Common stocks	0.1		0.6		0.6
Non-redeemable preferred stocks	73.9		85.8		85.8
Total equity securities	74.0		86.4		86.4
Commercial mortgage loans on real estate, at amortized cost	78.7		82.7		78.7
Policy loans	6.7		6.7		6.7
Other investments	39.7		39.7		39.7
Total investments	$	1,002.0	$	1,208.8	$	1,204.8

XML 1036 R23.htm IDEA: XBRL DOCUMENT

Schedule III - Supplementary Insurance Information

12 Months Ended

Dec. 31, 2017

Supplementary Insurance Information [Abstract]

Schedule III - Supplementary Insurance Information

Schedule III — Supplementary Insurance Information



	Future policy benefits and expenses		Unearned premiums		Claims and benefits payable		Premium revenues		Net investment income		Benefits claims, losses and settlement expenses		Other* operating expenses
	(in millions)
2017	$	2,992.9	$	54.5	$	1,266.1	$	5.5	$	64.2	$	58.6	$	22.5
2016	$	3,068.1	$	28.1	$	1,412.9	$	180.3	$	97.8	$	152.7	$	143.8
2015	$	2,875.4	$	34.1	$	1,719.9	$	1,047.5	$	169.5	$	749.6	$	386.2

* Includes amortization of deferred policy acquisition costs, amortization of value of business acquired and underwriting, general and administration expenses and goodwill impairment.

XML 1037 R24.htm IDEA: XBRL DOCUMENT

Schedule IV - Reinsurance

12 Months Ended

Dec. 31, 2017

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]

Schedule IV - Reinsurance

Schedule IV — Reinsurance



	Direct amount		Ceded to other Companies		Assumed from other Companies		Net amount		Percentage of amount assumed to net
	(in millions)
Life insurance in- force	$	59,075.0	$	58,373.3	$	549.4	$	1,251.1	43.9	%
Premiums:
Life insurance	$	239.4	$	237.3	$	3.1	$	5.2	59.6	%
Accident and health insurance	715.5		716.4		1.2		0.3		400.0	%
Total earned premiums	$	954.9	$	953.7	$	4.3	$	5.5	78.2	%
Benefits:
Life insurance	$	345.6	$	304.3	$	13.1	$	54.4	24.1	%
Accident and health insurance	507.5		503.6		0.3		4.2		7.1	%
Total policyholder benefits	$	853.1	$	807.9	$	13.4	$	58.6	22.9	%

Union Security Insurance Company

for the year ended December 31, 2016

Schedule IV — Reinsurance



	Direct amount		Ceded to other Companies		Assumed from other Companies		Net amount		Percentage of amount assumed to net
	(in millions)
Life insurance in- force	$	68,173.9	$	68,066.3	$	1,232.5	$	1,340.1	92.0	%
Premiums:
Life insurance	$	269.6	$	234.8	$	5.9	$	40.7	14.5	%
Accident and health insurance	752.1		665.4		52.9		139.6		37.9	%
Total earned premiums	$	1,021.7	$	900.2	$	58.8	$	180.3	32.6	%
Benefits:
Life insurance	$	379.6	$	341.0	$	16.3	$	54.9	29.7	%
Accident and health insurance	863.1		790.1		24.8		97.8		25.4	%
Total policyholder benefits	$	1,242.7	$	1,131.1	$	41.1	$	152.7	26.9	%

Union Security Insurance Company

for the year ended December 31, 2015

Schedule IV — Reinsurance



	Direct amount		Ceded to other Companies		Assumed from other Companies		Net amount		Percentage of amount assumed to net
	(in millions)
Life insurance in- force	$	72,829.5	$	9,245.1	$	1,120.1	$	64,704.5	1.7	%
Premiums:
Life insurance	$	275.1	$	71.8	$	5.6	$	208.9	2.7	%
Accident and health insurance	777.3		93.2		154.5		838.6		18.4	%
Total earned premiums	$	1,052.4	$	165.0	$	160.1	$	1,047.5	15.3	%
Benefits:
Life insurance	$	355.1	$	207.0	$	17.3	$	165.4	10.5	%
Accident and health insurance	609.4		173.4		148.2		584.2		25.4	%
Total policyholder benefits	$	964.5	$	380.4	$	165.5	$	749.6	22.1	%

XML 1038 R25.htm IDEA: XBRL DOCUMENT

Schedule V - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule V-Valuation and Qualifying Accounts

Schedule V — Valuation and Qualifying Accounts



			Additions
	Balance at Beginning of Year		Charged to Costs and Expenses			Charged to Other Accounts		Deductions		Balance at End of Year
	(in millions)
2017:
Valuation allowance for mortgage loans on real estate	$	1.7	$	(1.3	)	$	—	$	—	$	0.4
Valuation allowance for uncollectible agents balances	4.3		(4.3		)	—		—		—
Valuation allowance for uncollectible accounts	1.0		(1.0		)	—		—		—
Valuation allowance for reinsurance recoverables	0.1		(0.1		)	—		—		—
Total	$	7.1	$	(6.7	)	$	—	$	—	$	0.4
2016:
Valuation allowance for mortgage loans on real estate	$	1.1	$	0.6		$	—	$	—	$	1.7
Valuation allowance for uncollectible agents balances	4.3		—			—		—		4.3
Valuation allowance for uncollectible accounts	—		1.0			—		—		1.0
Valuation allowance for reinsurance recoverables	—		0.1			—		—		0.1
Total	$	5.4	$	1.7		$	—	$	—	$	7.1
2015:
Valuation allowance for mortgage loans on real estate	$	1.5	$	(0.4	)	$	—	$	—	$	1.1
Valuation allowance for uncollectible agents balances	4.4		(0.1		)	—		—		4.3
Total	$	5.9	$	(0.5	)	$	—	$	—	$	5.4

XML 1039 R26.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Amounts are presented in United States of America (“U.S.”) dollars and all amounts are in millions, except for number of shares, per share amounts, number of securities and number of loans.
Use of Estimates	Use of Estimates The preparation of Financial Statements requires management to make estimates and assumptions that affect the reported amounts. The items affected by the use of estimates include but are not limited to, investments, reinsurance recoverables, other assets, future policy benefits and expenses, unearned premiums, claims and benefits payable, deferred gain on disposal of businesses, and commitments and contingencies. The estimates are sensitive to market conditions, investment yields, mortality, morbidity, commissions and other acquisition expenses, policyholder behavior and other factors. Actual results could differ from the estimates recorded. The Company believes all amounts reported are reasonable and adequate.
Fair Value	Fair Value The Company uses an exit price for its fair value measurements. An exit price is defined as the amount received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In measuring fair value, the Company gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.
Investments	Investments Fixed maturity and equity securities are classified as available for sale, as defined in the investments guidance, and reported at fair value. If the fair value is higher than the amortized cost for fixed maturity securities or the cost for equity securities, the excess is an unrealized gain; and, if lower than cost, the difference is an unrealized loss. Net unrealized gains and losses on securities classified as available for sale, less deferred income taxes, are included in accumulated other comprehensive income (“AOCI”). Commercial mortgage loans on real estate are reported at unpaid balances, adjusted for amortization of premium or discount, less allowance for losses. The allowance is based on management’s analysis of factors including actual loan loss experience, specific events based on geographical, political or economic conditions, industry experience, loan groupings that have probable and estimable losses and individually impaired loan loss analysis. A loan is considered individually impaired when it becomes probable the Company will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the loan agreement. Indicative factors of impairment include, but are not limited to, whether the loan is current, the value of the collateral and the financial position of the borrower. If a loan is individually impaired, the Company uses one of the following valuation methods based on the individual loan’s facts and circumstances to measure the impairment amount: (1) the present value of expected future cash flows, (2) the loan's observable market price, or (3) the fair value of collateral. Changes in the allowance for loan losses are recorded in net realized losses on investments, excluding other-than-temporary impairment (“OTTI”) losses. The Company places loans on non-accrual status after 90 days of delinquent payments (unless the loans are both well secured and in the process of collection). A loan may be placed on non-accrual status before this time if information is available that suggests its impairment is probable. Short-term investments include money market funds and short maturity investments. These amounts are reported at cost or amortized cost, which approximates fair value. Other investments consist primarily of investments in joint ventures and partnerships. The joint ventures and partnerships are valued according to the equity method of accounting. In applying the equity method, the Company uses financial information provided by the investee, generally on a three month lag. Realized gains and losses on sales of investments are recognized on the specific identification basis. Investment income is recorded as earned and reported net of investment expenses. The Company uses the interest method to recognize interest income on its commercial mortgage loans. The Company anticipates prepayments of principal in the calculation of the effective yield for mortgage-backed securities and structured securities. The retrospective method is used to adjust the effective yield.
Total Other-Than-Temporary Impairment Losses	Total Other-Than-Temporary Impairment Losses For debt securities with credit losses and non-credit losses or gains, total OTTI losses is the total of the decline in fair value from either the most recent OTTI determination or a prior period end in which the fair value declined until the current period end valuation date. This amount does not include any securities that had fair value increases. For equity securities and debt securities that the Company has the intent to sell or if it is more likely than not that it will be required to sell for equity securities that have an OTTI or for debt securities if there are only credit losses, total OTTI losses is the total amount by which the fair value of the security is less than its amortized cost basis at the period end valuation date and the decline in fair value is deemed to be other-than-temporary. When a decline in value is considered to be other-than-temporary for equity method investments, the carrying value of these investments is written down, or impaired, to fair value.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers cash on hand, all operating cash and working capital cash to be cash equivalents. These amounts are carried at cost, which approximates fair value.
Reinsurance	Reinsurance Reinsurance recoverables include amounts related to paid benefits and estimated amounts related to unpaid policy and contract claims, future policyholder benefits and policyholder contract deposits. The cost of reinsurance is recognized over the terms of the underlying reinsured policies using assumptions consistent with those used to account for the policies. Amounts recoverable from reinsurers are estimated in a manner consistent with claim and claim adjustment expense reserves or future policy benefits reserves and are reported in the balance sheets. The cost of reinsurance related to long-duration contracts is recognized over the life of the underlying reinsured policies. The ceding of insurance does not discharge the Company’s primary liability to insureds, thus a credit exposure exists to the extent that any reinsurer is unable to meet the obligation assumed in the reinsurance agreements. To mitigate this exposure to reinsurance insolvencies, the Company evaluates the financial condition of its reinsurers and holds collateral (in the form of funds withheld, trusts and letters of credit) as security under the reinsurance agreements. An allowance for doubtful accounts is recorded on the basis of periodic evaluations of balances due from reinsurers (net of collateral), reinsurer solvency, management’s experience and current economic conditions. Funds withheld under reinsurance represent amounts contractually held from assuming companies in accordance with reinsurance agreements. Reinsurance premiums assumed are calculated based upon payments received from ceding companies together with accrual estimates, which are based on both payments received and in- force policy information received from ceding companies. Any subsequent differences arising on such estimates are recorded in the period in which they are determined.
Other Assets	Other Assets Other assets include prepaid items, deferred acquisition costs, value of business acquired in acquisitions and premiums and accounts receivable, net.
Separate Accounts	Separate Accounts Assets and liabilities associated with separate accounts relate to premium and annuity considerations for variable life and annuity products for which the contract-holder, rather than the Company, bears the investment risk. Separate account assets (with matching liabilities) are reported at fair value. Revenues and expenses related to the separate account assets and liabilities, to the extent of benefits paid or provided to the separate account policyholders, are excluded from the amounts reported in the accompanying statements of operations because the accounts are administered by reinsurers.
Reserves	Reserves Reserves are established using generally accepted actuarial methods and reflect judgments about expected future claim payments. Factors used in their calculation include experience derived from historical claim payments and actuarial assumptions. Calculations incorporate assumptions about the incidence of incurred claims, the extent to which all claims have been reported, internal claims processing charges and other relevant factors. While the methods of making such estimates and establishing the related liabilities are periodically reviewed and updated, the estimation of reserves includes an element of uncertainty given that management is using historical information and methods to project future events and reserve outcomes. The recorded reserves represent our best estimates at a point in time of the ultimate costs of settlement and administration of a claim or group of claims based upon actuarial assumptions and projections using facts and circumstances known at the time of calculation. The adequacy of reserves may be impacted by future trends in claims severity, frequency, judicial theories of liability and other factors. These variables are affected by both external and internal events, including but not limited to: changes in the economic cycle, inflation, natural or human-made catastrophes, judicial trends, legislative changes and claims handling procedures. Many of these items are not directly quantifiable. Reserve estimates are refined as experience develops. Adjustments to reserves, both positive and negative, are reflected in the statement of operations in the period in which such estimates are updated. Because establishment of reserves is an inherently complex process involving significant judgment, there can be no certainty that future settlement amounts for claims incurred through the financial reporting date will not vary from reported claims reserves. Future loss development could require reserves to be increased or decreased, which could have a material effect on our earnings in the periods in which such increases or decreases are made. However, based on information currently available, we believe our reserve estimates are adequate. Long Duration Contracts Future policy benefits and expense reserves for preneed investment-type annuities, and the variable life insurance and investment-type annuity contracts consist of policy account balances before applicable surrender charges and certain deferred policy initiation fees that are being recognized in income over the terms of the policies. Policy benefits charged to expense during the period include amounts paid in excess of policy account balances and interest credited to policy account balances. An unearned revenue reserve is also recorded for those preneed investment-type annuities which represent the balance of the excess of gross premiums over net premiums that is still recognized in future years’ income in a constant relationship to estimated gross profits. Future policy benefits and expense reserves for preneed life insurance contracts issued prior to 2009 are reported at the present value of future benefits to policyholders and related expenses less the present value of future net premiums. Reserve assumptions are selected using best estimates for expected investment yield, inflation, mortality and withdrawal rates. These assumptions reflect current trends, are based on Company experience and include provision for possible unfavorable deviation. An unearned revenue reserve is also recorded for these contracts which represents the balance of the excess of gross premiums over net premiums that is still to be recognized in future years’ income in a constant relationship to insurance in force. The policies fully covered by reinsurance and certain life, annuity and group life conversion policies no longer offered are equal to the present value of future benefits to policyholders plus related expenses less the present value of the future net premiums. These amounts are estimated based on assumptions as to the expected investment yield, inflation, mortality, morbidity and withdrawal rates as well as other assumptions that are based on the Company’s experience. These assumptions reflect anticipated trends and include provisions for possible unfavorable deviations. Changes in the estimated liabilities are reported as a charge or credit to policyholder benefits as the estimates are revised. Short Duration Contracts The Company’s short duration contracts include accidental death products, former AEB group term life, group disability, dental, and vision contracts and medical contracts no longer offered. For short duration contracts, claims and benefits payable reserves are recorded when insured events occur. The liability is based on the expected ultimate cost of settling the claims. The claims and benefits payable reserves include: (1) case reserves for known but unpaid claims as of the balance sheet date; (2) IBNR reserves for claims where the insured event has occurred but has not been reported to the Company as of the balance sheet date; and (3) loss adjustment expense reserves for the expected handling costs of settling the claims. Changes in the estimated liabilities are recorded as a charge or credit to policyholder benefits as estimates are revised.
Contingencies	Contingencies A loss contingency is recorded if reasonably estimable and probable. The Company establishes reserves for these contingencies at the best estimate, or if no one estimated number within the range of possible losses is more probable than any other, the Company records an estimated reserve at the low end of the estimated range. Contingencies affecting the Company primarily relate to litigation matters which are inherently difficult to evaluate and are subject to significant changes.
Premiums	Premiums Long Duration Contracts For traditional life insurance policies previously sold by the preneed business, revenue is recognized when due from policyholders. For investment-type annuity contracts previously sold by the preneed business, revenues consist of charges assessed against policy balances. Premiums for long-term care insurance and traditional life insurance contracts are recognized as revenue when due from the policyholder. For universal life insurance and investment-type annuity contracts, revenues consist of charges assessed against policy balances. Short Duration Contracts The Company’s short duration contracts revenue is recognized over the contract term in proportion to the amount of insurance protection provided.
Fees and Other Income	Fees and Other Income Income earned on preneed life insurance policies with discretionary death benefits is presented within fees and other income. Prior to March 1, 2016, the Company also derived fees and other income from providing administrative services related to the AEB business. These fees were recognized monthly when services were performed.
Underwriting, General and Administrative Expenses	Underwriting, General and Administrative Expenses Underwriting, general and administrative expenses consist primarily of commissions, premium taxes, licenses, fees, salaries and personnel benefits, goodwill impairment, amortization of deferred acquisition costs, amortization of value of business acquired and other general operating expenses.
Income Taxes	Income Taxes The Company reports its taxable income in a consolidated federal income tax return along with other affiliated subsidiaries of the Parent. Income tax expense or benefit is allocated among the affiliated subsidiaries by applying corporate income tax rates to taxable income or loss determined on a separate return basis according to a tax allocation agreement. Entities with losses record current tax benefits to the extent such losses are recognized in the consolidated federal tax return. Current federal income taxes are recognized based upon amounts estimated to be payable or recoverable as a result of taxable operations for the current year. Deferred income taxes are recorded for temporary differences between the financial reporting basis and income tax basis of assets and liabilities, based on enacted tax laws and statutory tax rates applicable to the periods in which the Company expects the temporary differences to reverse. A valuation allowance is established for deferred tax assets when it is more likely than not that an amount will not be realized. The impact of changes in tax rates on all deferred tax assets and liabilities are required to be reflected within income on the enactment date, regardless of the financial statement component where the deferred tax originated. The Company classifies net interest expense related to tax matters and any applicable penalties as a component of income tax expense.
Comprehensive Income (Loss)	Comprehensive Income (Loss) Comprehensive income (loss) is comprised of net income, changes in net unrealized gains and losses on securities classified as available for sale and net unrealized gains and losses on other-than-temporarily impaired securities, less applicable deferred income taxes.
Uncollectible Receivable Balance	Uncollectible Receivable Balance The Company maintains allowances for doubtful accounts for probable losses resulting from the inability to collect payments.
Deferred Gain on Disposal of Businesses	Deferred Gain on Disposal of Businesses The applicable gains related to the AEB, LTC and FFG businesses referenced in Note 1 were required to be deferred and reported as liabilities since the form of these sales did not discharge the Company's primary liability to the insureds. The liabilities have been, and will continue to be amortized and recognized as revenue over the estimated life of the contracts’ terms. The Company reviews and evaluates the estimates affecting the deferred gain on disposal of the respective businesses at least annually, and adjusts the revenue recognized accordingly.
Leases	Leases The Company records expenses for operating leases on a straight-line basis over the lease term.
Recent Accounting Pronouncements - Adopted and Not Yet Adopted	Recent Accounting Pronouncements — Not Yet Adopted Income tax consequences for intra-entity transfers of assets: In October 2016, the Financial Accounting Standards Board (FASB) issued amended guidance on tax accounting for intra-entity transfers of assets. Current guidance prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. The amendments require an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Also, the amended guidance eliminates the exception for an intra-entity transfer of an asset other than inventory. The amended guidance is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. Early adoption is permitted. The adoption of this amended guidance will not have an impact on the Company’s financial position and results of operations. Statement of cash flows presentation and classification: In August 2016, the FASB issued amended guidance on presentation and classification in the statement of cash flows. The amendments address certain specific cash flow issues including debt prepayment and debt extinguishment costs; settlement of zero-coupon or insignificant coupon debt instruments; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (including bank-owned life insurance policies); distributions received from equity method investees; beneficial interests in securitization transactions; and guidance related to the identification of the primary source for separately identifiable cash flows. The amended guidance is effective in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. The adoption of this amended guidance will not have an impact on the Company’s financial position and results of operations. Reporting credit losses of assets held at amortized cost: In June 2016, the FASB issued amended guidance on reporting credit losses for assets held at amortized cost and available for sale debt securities. For assets held at amortized cost, the amended guidance eliminates the probable recognition threshold and instead requires an entity to reflect the current estimate of all expected credit losses. For available for sale debt securities, credit losses will be measured in a manner similar to current accounting requirements; however, the amended guidance requires that credit losses be presented as an allowance rather than as a permanent impairment. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The amended guidance is effective in fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2020. Early adoption is permitted as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is evaluating the requirements of this amended guidance and the potential impact on the Company’s financial position and results of operations. Financial instruments measurement and classification: In January 2016, the FASB issued amended guidance on the measurement and classification of financial instruments. This amended guidance requires that all equity investments be measured at fair value with changes in fair value recognized through net income (other than those accounted for under equity method of accounting or those that result in consolidation of the investee). The amendments also require an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the fair value option has been elected for financial liabilities. The amendments eliminate the requirement to disclose the methods and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost, however public business entities will be required to use the exit price when measuring the fair value of financial instruments measured at amortized cost for disclosure purposes. In addition, the new guidance requires financial assets and financial liabilities to be presented separately in the notes to the financial statements, grouped by measurement category and form of financial asset. The amended guidance is effective in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Therefore, the Company is required to adopt the guidance on January 1, 2018. Upon adoption, all common and preferred stocks will be measured at fair value through the income statement. For certain private equity investments recorded in Other investments, the Company will elect the measurement alternative to record these investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. The measurement alternative will be applied on a prospective basis. Upon adoption, the Company will record a cumulative adjustment to increase retained earnings by $8.1 million. This entry represents a reclassification from AOCI of the unrealized gains on common and preferred stock as of the date of adoption. Revenue recognition from contracts with customers: In May 2014, the FASB issued amended guidance on revenue recognition from contracts with customers, which is required to be implemented in 2018 for public companies. Further amendments and technical corrections were made to the amended guidance during 2016 and 2017. The amended guidance, which the Company will adopt effective January 1, 2018, affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets unless those contracts are within the scope of other standards. Insurance and similar contracts issued by insurance entities are within the scope of other standards and therefore are specifically excluded from the scope of the amended revenue recognition guidance. As such, the amended guidance will not have an impact on the Company’s financial position and results of operations.

XML 1040 R27.htm IDEA: XBRL DOCUMENT

Nature of Operations and Items Impacting Basis of Presentation (Tables)

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Gain by Transactions Component

The following represents a summary of the pre-tax gain recognized by transaction component, as well as the related classification within the Financial Statements:



	Years Ended December 31,
	2017		2016

Gain on sale of entities	$	—	$	6.6
Novations, resulting in recognized gains (a)	—		59.1
Loss on retroactive reinsurance component, before realized gains (b)	—		(109.6		)
Net loss prior to realized gains on transferred securities supporting retroactive component (c)	—		(43.9		)
Realized gains on transferred securities supporting retroactive	—		141.5
Amortization of deferred gains (d)	90.0		356.1
Total	$	90.0	$	453.7


(a)	Novations of certain insurance policies directly to Sun Life allowed for immediate gain recognition.

(b)


(c)	Amount classified within underwriting, general and administrative expenses in the statements of operations.


(d)	Amount classified as amortization of deferred gains and gains on disposal of businesses within the statements of operations. The year ended December 31, 2017 amount includes subsequent novations of $1.4 million that allowed immediate gain recognition.

Schedule of Change in Presentation of Certain Preneed Life Insurance Policies

The effect of this change to the 2017 financial statements is shown below.



	As of and for the year ended December 31, 2017
	Before Adjustment		Adjustment			Reported
Balance sheet:
Assets
Other assets	$	20.3	$	27.1		$	47.4
Total assets	$	6,313.0	$	27.1		$	6,340.1

Liabilities
Unearned premiums	27.4		27.1			54.5
Total assets	$	6,106.0	$	27.1		$	6,133.1

Statement of operations:
Revenues
Net earned premiums	$	5.8	$	(0.3	)	$	5.5
Fees and other income	4.0		25.0			29.0
Total revenues	$	181.5	$	24.7		$	206.2

Benefits, losses and expenses
Policyholder benefits	$	35.7	$	22.9		$	58.6
Underwriting, general, and administrative expenses	20.7		1.8			22.5
Total benefits, losses, and expenses	$	56.4	$	24.7		$	81.1

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=84176398&loc=SL51724579-110230

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 3A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5A
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5D
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760

+ Details

XML 1041 R28.htm IDEA: XBRL DOCUMENT

Investments (Tables)

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Schedule of Cost or Amortized Cost, Gross Unrealized Gains and Losses, Fair Value and OTTI of Fixed Maturity and Equity Securities

The following tables show the cost or amortized cost, gross unrealized gains and losses, fair value and OTTI of the Company's fixed maturity and equity securities as of the dates indicated:



	December 31, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		OTTI in AOCI (a)
Fixed maturity securities:
United States Government and government agencies and authorities	$	3.1	$	0.1	$	—		$	3.2	$	—
States, municipalities and political subdivisions	4.7		0.9		—			5.6		—
Foreign governments	8.4		2.1		—			10.5		—
Asset-backed	28.7		0.3		—			29.0		—
Commercial mortgage-backed	3.5		—		(0.2		)	3.3		—
Residential mortgage-backed	39.6		2.5		(0.4		)	41.7		1.6
U.S. corporate	588.6		153.6		(0.1		)	742.1		12.5
Foreign corporate	126.3		31.6		—			157.9		—
Total fixed maturity securities	$	802.9	$	191.1	$	(0.7	)	$	993.3	$	14.1
Equity securities:
Common stocks	$	0.1	$	0.5	$	—		$	0.6	$	—
Non-redeemable preferred stocks	73.9		12.0		(0.1		)	85.8		—
Total equity securities	$	74.0	$	12.5	$	(0.1	)	$	86.4	$	—



	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		OTTI in AOCI (a)
Fixed maturity securities:
United States Government and government agencies and authorities	$	1.9	$	0.1	$	—		$	2.0	$	—
States, municipalities and political subdivisions	9.9		0.9		—			10.8		—
Foreign governments	9.3		2.0		—			11.3		—
Asset-backed	0.2		—		—			0.2		—
Commercial mortgage-backed	3.4		—		(0.2		)	3.2		—
Residential mortgage-backed	33.7		3.3		(0.1		)	36.9		2.0
U.S. corporate	667.0		127.7		(1.3		)	793.4		11.2
Foreign corporate	146.1		24.9		(0.1		)	170.9		—
Total fixed maturity securities	$	871.5	$	158.9	$	(1.7	)	$	1,028.7	$	13.2
Equity securities:
Common stocks	$	0.1	$	0.3	$	—		$	0.4	$	—
Non-redeemable preferred stocks	85.6		7.8		(0.2		)	93.2		—
Total equity securities	$	85.7	$	8.1	$	(0.2	)	$	93.6	$	—

Schedule of Cost or Amortized Cost and Fair Value of Fixed Maturity Securities By Contractual Maturity



	Cost or Amortized Cost		Fair Value
Due in one year or less	$	7.3	$	7.4
Due after one year through five years	73.9		79.5
Due after five years through ten years	93.4		106.6
Due after ten years	556.5		725.8
Total	731.1		919.3
Asset-backed	28.7		29.0
Commercial mortgage-backed	3.5		3.3
Residential mortgage-backed	39.6		41.7
Total	$	802.9	$	993.3

Schedule of Major Categories of Net Investment Income

Major categories of net investment income were as follows:



	Years Ended December 31,
	2017			2016			2015
Fixed maturity securities	$	52.4		$	74.1		$	130.0
Equity securities	5.4			7.0			9.2
Commercial mortgage loans on real estate	5.6			10.2			30.4
Policy loans	0.4			0.5			0.5
Other investments	2.5			7.7			5.3
Cash and cash equivalents	—			0.3			—
Total investment income	66.3			99.8			175.4
Investment expenses	(2.1		)	(2.0		)	(5.9		)
Net investment income	$	64.2		$	97.8		$	169.5

Summary of Proceeds From Sales of Available-For-Sale Securities and the Gross Realized Gains and Gross Realized Losses



	For the Years Ended December 31,
	2017			2016			2015
Proceeds from sales	$	218.7		$	1,939.4		$	312.0
Gross realized gains (a)	7.1			168.9			9.7
Gross realized losses (b)	(0.4		)	(19.9		)	(4.3		)

(a) Year ended December 31, 2016 gross realized gains includes $145.6 million related to the sale of Assurant Employee Benefits as described in Note 1.

(b) Year ended December 31, 2016 gross realized losses includes $15.9 million related to the sale of Assurant Employee Benefits as described in Note 1.

Schedule of Net Realized Gains (Losses), Including Other-Than-Temporary Impairments

The following table sets forth the net realized gains (losses), including other-than-temporary impairments, recognized in the statement of operations as follows:



	Years Ended December 31,
	2017			2016			2015
Net realized gains (losses) related to sales and other:
Fixed maturity securities	$	6.1		$	143.6		$	3.1
Equity securities	0.2			5.7			1.8
Commercial mortgage loans on real estate	1.3			13.6			0.4
Other investments	2.2			2.2			11.7
Total net realized gains related to sales and other (a)	9.8			165.1			17.0
Net realized losses related to other-than-temporary impairments:
Fixed maturity securities	(0.1		)	(0.3		)	(2.4		)
Other investments	—			(1.9		)	(4.6		)
Total net realized losses related to other-than-temporary impairments	(0.1		)	(2.2		)	(7.0		)
Total net realized gains	$	9.7		$	162.9		$	10.0

(a) The year ended December 31, 2016 net realized gains includes $141.5 million related to the sale of Assurant Employee Benefits as described in Note 1.

Schedule of Credit Loss Impairments on Fixed Maturity Securities for Which a Portion of the OTTI Loss was Recognized in AOCI



	Years Ended December 31,
	2017			2016			2015
Balance, beginning of year	$	11.1		$	13.6		$	13.5
Additions for credit loss impairments recognized in the current period on securities previously impaired	—			0.3			—
Additions for credit loss impairments recognized in the current period on securities not previously impaired	—			—			0.7
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security	(0.3		)	(0.5		)	(0.2		)
Reductions for credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(0.1		)	(2.3		)	(0.4		)
Balance, end of year	$	10.7		$	11.1		$	13.6

Schedule of Gross Unrealized Losses on Fixed Maturity Securities and Equity Securities

The investment category and duration of the Company's gross unrealized losses on fixed maturity securities and equity securities at December 31, 2017 and 2016 were as follows:



	December 31, 2017
	Less than 12 months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Fixed maturity securities:
Commercial mortgage-backed	$	—	$	—		$	3.3	$	(0.2	)	$	3.3	$	(0.2	)
Residential mortgage-backed	9.5		(0.4		)	—		—			9.5		(0.4		)
U.S. corporate	—		—			1.5		(0.1		)	1.5		(0.1		)
Total fixed maturity securities	$	9.5	$	(0.4	)	$	4.8	$	(0.3	)	$	14.3	$	(0.7	)
Equity securities:
Non-redeemable preferred stocks	$	2.5	$	(0.1	)	$	—	$	—		$	2.5	$	(0.1	)



	December 31, 2016
	Less than 12 months					12 Months or More					Total
	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Fixed maturity securities:
Commercial mortgage-backed	$	3.2	$	(0.2	)	$	—	$	—		$	3.2	$	(0.2	)
Residential mortgage-backed	1.9		(0.1		)	—		—			$	1.9	(0.1		)
U.S. corporate	55.3		(1.1		)	1.2		(0.2		)	$	56.5	(1.3		)
Foreign corporate	—		—			2.0		(0.1		)	$	2.0	(0.1		)
Total fixed maturity securities	$	60.4	$	(1.4	)	$	3.2	$	(0.3	)	$	63.6	$	(1.7	)
Equity securities:
Non-redeemable preferred stocks	$	13.4	$	(0.2	)	$	—	$	—		$	13.4	$	(0.2	)

Schedule of Cost or Amortized Cost and Fair Value of Securities in an Unrealized Loss Position

The cost or amortized cost and fair value of available-for-sale fixed maturity securities in an unrealized loss position at December 31, 2017, by contractual maturity, is shown below:



	Cost or Amortized Cost		Fair Value
Due in one year through five years	1.6		1.5
Commercial mortgage-backed	3.5		3.3
Residential mortgage-backed	9.9		9.5
Total	$	15.0	$	14.3

Summary of Loan-To-Value and Average Debt-Service Coverage Ratios

The following summarizes our loan-to-value and average debt-service coverage ratios as of the dates indicated:



	December 31, 2017
Loan-to-Value	Carrying Value			% of Gross Mortgage Loans		Debt- Service Coverage Ratio
70% and less	$	79.1		100.0	%	2.11
Less valuation allowance	(0.4		)
Net commercial mortgage loans on real estate	$	78.7



	December 31, 2016
Loan-to-Value	Carrying Value			% of Gross Mortgage Loans		Debt- Service Coverage Ratio
70% and less	$	92.3		92.2	%	1.80
81 - 95%	3.0			3.0	%	1.11
Greater than 95%	4.8			4.8	%	3.86
Gross commercial mortgage loans on real estate	100.1			100.0	%	1.88
Less valuation allowance	(1.7		)
Net commercial mortgage loans on real estate	$	98.4

XML 1042 R29.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of the Company's Fair Value Hierarchy for Recurring Basis Assets and Liabilities



	December 31, 2017
	Total		Level 1			Level 2			Level 3
Financial Assets
Fixed maturity securities:
United States Government and government agencies and authorities	$	3.2	$	—		$	3.2		$	—
State, municipalities and political subdivisions	5.6		—			5.6			—
Foreign governments	10.5		—			10.5			—
Asset-backed	29.0		—			24.3			4.7
Commercial mortgage-backed	3.3		—			—			3.3
Residential mortgage-backed	41.7		—			41.7			—
U.S. corporate	742.1		—			741.9			0.2
Foreign corporate	157.9		—			148.6			9.3
Equity securities:
Common stocks	0.6		0.6			—			—
Non-redeemable preferred stocks	85.8		—			84.7			1.1
Other investments	6.4		6.4		(a)	—			—
Other assets	0.2		—			—			0.2		(d)
Assets held in separate accounts	1,644.3		1,600.8		(b)	43.5		(c)	—
Total financial assets	$	2,730.6	$	1,607.8		$	1,104.0		$	18.8
Financial Liabilities
Liabilities related to separate accounts	$	1,644.3	$	1,600.8	(b)	$	43.5	(c)	$	—



	December 31, 2016
	Total		Level 1			Level 2			Level 3
Financial Assets
Fixed maturity securities:
United States Government and government agencies and authorities	$	2.0	$	—		$	2.0		$	—
State, municipalities and political subdivisions	10.8		—			10.8			—
Foreign governments	11.3		—			11.3			—
Asset-backed	0.2		—			0.2			—
Commercial mortgage-backed	3.2		—			—			3.2
Residential mortgage-backed	36.9		—			36.9			—
U.S. corporate	793.4		—			789.8			3.6
Foreign corporate	170.9		—			160.9			10.0
Equity securities:
Common stocks	0.4		0.4			—			—
Non-redeemable preferred stocks	93.2		—			92.1			1.1
Other investments	30.2		2.7		(a)	27.5		(c)	—
Cash equivalents	6.6		6.6		(a)	—			—
Other assets	0.3		—			—			0.3		(d)
Assets held in separate accounts	1,499.7		1,438.6		(b)	61.1		(c)	—
Total financial assets	$	2,659.1	$	1,448.3		$	1,192.6		$	18.2
Financial Liabilities
Liabilities related to separate accounts	$	1,499.7	$	1,438.6	(b)	$	61.1	(c)	$	—

(a) Mainly includes money market funds.

(b) Mainly includes mutual funds.

(d) Mainly includes derivatives.

Summary of the Change in Balance Sheet Carrying Value Associated with Level 3 Financial Assets Carried at Fair Value

The following tables summarize the change in balance sheet carrying value associated with Level 3 financial assets carried at fair value during the years ended December 31, 2017 and 2016:



	Year Ended December 31, 2017
	Balance, beginning of period		Total gains (losses) (realized/ unrealized) included in earnings (1)			Net unrealized (losses) gains included in other comprehensive income (2)			Purchases		Sales			Transfers in (3)		Transfers out (3)			Balance, end of period
Fixed maturity securities:
States, municipalities and political subdivisions	$	—	$	0.1		$	(0.1	)	$	29.0	$	(7.4	)	$	—	$	(16.9	)	4.7
Commercial mortgage-backed	3.2		0.1			—			—		—			—		—			3.3
U.S. corporate	3.6		—			0.3			—		(0.6		)	0.3		(3.4		)	0.2
Foreign corporate	10.0		—			(0.1		)	—		(0.6		)	—		—			9.3
Equity securities:
Non-redeemable preferred stocks	1.1		—			—			—		—			—		—			1.1
Other assets	0.3		(0.1		)	—			—		—			—		—			0.2
Total level 3 assets	$	18.2	$	0.1		$	0.1		$	29.0	$	(8.6	)	$	0.3	$	(20.3	)	$	18.8



	Year Ended December 31, 2016
	Balance, beginning of period		Total gains (losses) (realized/ unrealized) included in earnings (1)			Net unrealized losses included in other comprehensive income (2)			Purchases		Sales			Transfers in (3)		Transfers out (3)			Balance, end of period
Fixed maturity securities:
States, municipalities and political subdivisions	$	—	$	—		$	—		$	1.3	$	(1.3	)	$	—	$	—		—
Commercial mortgage-backed	0.1		—			(0.2		)	3.4		(0.1		)	—		—			3.2
U.S. corporate	10.7		0.5			(0.6		)	0.8		(6.3		)	0.1		(1.6		)	3.6
Foreign corporate	15.9		1.1			(0.8		)	—		(6.2		)	—		—			10.0
Equity securities:
Non-redeemable preferred stocks	1.1		—			—			—		—			—		—			1.1
Other assets	0.4		(0.1		)	—			—		—			—		—			0.3
Total level 3 assets	$	28.2	$	1.5		$	(1.6	)	$	5.5	$	(13.9	)	$	0.1	$	(1.6	)	$	18.2

(1) Included as part of net realized gains on investments in the statement of operations.

(2) Included as part of change in unrealized gains on securities in the statement of comprehensive income.

(3) Transfers are primarily attributable to changes in the availability of observable market information and re-evaluation of the observability of pricing inputs.

Schedule of Carrying Value, Fair Value Amount and Hierarchy Level of the Financial Instruments That Are Not Recognized or Are Not Carried at Fair Value

The following tables disclose the carrying value, fair value amount and hierarchy level of the financial instruments that are not recognized or are not carried at fair value in the balance sheets:



	December 31, 2017
			Fair Value
	Carrying Value		Total		Level 1		Level 2		Level 3
Financial assets:
Commercial mortgage loans on real estate	$	78.7	$	82.7	$	—	$	—	$	82.7
Policy loans	6.7		6.7		6.7		—		—
Other investments	0.2		0.2		—		—		0.2
Total financial assets	$	85.6	$	89.6	$	6.7	$	—	$	82.9
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal) (1)	$	210.5	$	227.5	$	—	$	—	$	227.5



	December 31, 2016
			Fair Value
	Carrying Value		Total		Level 1		Level 2		Level 3
Financial assets:
Commercial mortgage loans on real estate	$	98.4	$	103.0	$	—	$	—	$	103.0
Policy loans	7.4		7.4		7.4		—		—
Other investments	0.2		0.2		—		—		0.2
Total financial assets	$	106.0	$	110.6	$	7.4	$	—	$	103.2
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal) (1)	$	218.1	$	246.0	$	—	$	—	$	246.0

(1) Only the fair value of the Company's policy reserves for investment-type contracts (those without significant mortality or morbidity risk) are reflected in the table above.

XML 1043 R30.htm IDEA: XBRL DOCUMENT

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Company's Current and Deferred Federal Tax Expense

Information about the Company’s current and deferred tax expense follows:



	Year Ended December 31,
	2017			2016			2015
Current (benefit) expense	$	(3.3	)	$	271.4		$	29.8
Deferred expense (benefit)	49.5			(65.2		)	11.2
Total income tax expense	$	46.2		$	206.2		$	41.0

Schedule of Reconciliation of the Federal Income Tax Rate to the Company's Effective Income Tax Rate

A reconciliation of the federal income tax rate to the Company's effective income tax rate follows:



	December 31,
	2017		2016		2015
Federal income tax rate:	35.0	%	35.0	%	35.0	%
Reconciling items:
Dividends-received deduction	(1.2	)%	(0.3	)%	(1.7	)%
TCJA net deferred tax asset revaluation	3.6	%	—	%	—	%
Capital contribution from affiliated entity impacting taxable income	—	%	3.7	%	—	%
Goodwill	—	%	1.2	%	—	%
Nondeductible health insurer fee	—	%	0.5	%	2.3	%
Change in liability for prior years' taxes	(0.5	)%	—	%	0.5	%
Other	0.1	%	(0.1	)%	(0.5	)%
Effective income tax rate	37.0	%	40.0	%	35.6	%

Schedule of Significant Deferred Tax Assets and Deferred Tax Liabilities

The tax effects of temporary differences that result in significant deferred tax assets and liabilities are as follows:



	December 31,
	2017			2016
Deferred tax assets:
Deferred gain on disposal of businesses	$	22.0		$	70.2
Deferred acquisition costs	13.3			22.8
Investments, net	5.7			17.2
Policyholder and separate account reserves	7.1			13.3
Employee and Post-Retirement Benefits	2.8			4.6
Total deferred tax assets (1)	50.9			128.1
Deferred tax liabilities:
Net unrealized appreciation on securities	(42.6		)	(57.9		)
Other	(1.4		)	(0.7		)
Total deferred tax liabilities (1)	(44.0		)	(58.6		)
Net deferred income tax assets	$	6.9		$	69.5

(1) 2017 reflects the reduction of deferred tax assets and liabilities following the enactment of TCJA.

XML 1044 R31.htm IDEA: XBRL DOCUMENT

Statutory Information (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Statutory Net Income and Capital and Surplus

The Company's statutory net income and capital and surplus are as follows:



	Years Ended and at December 31,
	2017		2016		2015
Statutory net income	$	106.2	$	481.7	$	71.5
Statutory capital and surplus	$	113.9	$	158.5	$	428.4

- Definition

Tabular disclosure of how the entity's reporting under GAAP as of the balance sheet date differs from the results based on prescribed and permitted accounting practices of the state or country of domicile in which a relevant statutory filing is made, or differences in results based on the National Association of Insurance Commissioners (NAIC) prescribed practices, or a combination thereof. Describes the accounting practices used and the related monetary effect on statutory surplus, net income, and risk-based capital. If an insurance enterprise's risk-based capital would have triggered a regulatory event had it not used a permitted practice, that fact is disclosed in the financial statements. Permitted statutory accounting practices include practices not prescribed but allowed by the domiciliary state insurance department regulatory authority.

+ References+ Details

XML 1045 R32.htm IDEA: XBRL DOCUMENT

Reinsurance (Tables)

12 Months Ended

Dec. 31, 2017

Reinsurance Disclosures [Abstract]

Schedule of Reinsurance Recoverables

The following table provides details of the reinsurance recoverables balance as of December 31:



	2017		2016
Ceded future policyholder benefits and expenses	$	2,130.0	$	2,150.0
Ceded unearned premium	27.1		27.7
Ceded claims and benefits payable	1,254.7		1,373.7
Ceded paid losses	12.7		13.6
Total	$	3,424.5	$	3,565.0

Schedule of Reinsurance Recoverables

The following table provides the reinsurance recoverable as of December 31, 2017 grouped by A.M. Best rating:



A. M. Best ratings of reinsurer	Ceded future policyholder benefits and expense		Ceded unearned premiums		Ceded claims and benefits payable		Ceded paid losses		Total
A++ or A+	$	1,531.9	$	26.8	$	1,233.7	$	12.4	$	2,804.8
A or A–	68.4		0.2		1.2		—		69.8
B++ or B+	529.4		0.1		19.8		0.3		549.6
Not rated	0.3		—		—		—		0.3
Total Reinsurance recoverable	$	2,130.0	$	27.1	$	1,254.7	$	12.7	$	3,424.5

The following table presents the reinsurance recoverable from Sun Life, The Hartford, John Hancock and other reinsurers as of December 31, 2017 and 2016.



Reinsurer	December 31, 2017		December 31, 2016
John Hancock	$	1,952.7	$	1,908.2
Sun Life	851.9		1,025.0
The Hartford	549.6		558.3
Other reinsurers	70.3		73.5
Total	$	3,424.5	$	3,565.0

Schedule of Effect of Reinsurance on Premiums Earned and Benefits Incurred

The effect of reinsurance on premiums earned and benefits incurred was as follows:



	Years Ended December 31,
	2017									2016									2015
	Long Duration			Short Duration			Total			Long Duration			Short Duration			Total			Long Duration			Short Duration			Total
Direct earned premiums	$	198.0		$	756.9		$	954.9		$	213.7		$	808.0		$	1,021.7		$	209.4		$	843.0		$	1,052.4
Premiums assumed	3.6			0.7			4.3			4.6			54.2			58.8			8.4			151.7			160.1
Premiums ceded	(196.1		)	(757.6		)	(953.7		)	(200.6		)	(699.6		)	(900.2		)	(151.0		)	(14.0		)	(165.0		)
Net earned premiums	$	5.5		$	—		$	5.5		$	17.7		$	162.6		$	180.3		$	66.8		$	980.7		$	1,047.5
Direct policyholder benefits	$	413.6		$	439.5		$	853.1		$	695.8		$	546.9		$	1,242.7		$	414.5		$	550.0		$	964.5
Policyholder benefits assumed	13.4			—			13.4			15.5			25.6			41.1			18.3			147.2			165.5
Policyholder benefits ceded	(372.3		)	(435.6		)	(807.9		)	(672.2		)	(458.9		)	(1,131.1		)	(373.6		)	(6.8		)	(380.4		)
Net policyholder benefits	$	54.7		$	3.9		$	58.6		$	39.1		$	113.6		$	152.7		$	59.2		$	690.4		$	749.6

XML 1046 R33.htm IDEA: XBRL DOCUMENT

Reserves (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Most Significant Claims and Benefits Payable



	Years Ended December 31,
	2017			2016			2015
Claims and benefits payable, at beginning of year	$	1,412.9		$	1,719.9		$	1,717.9
Less: Reinsurance ceded and other	(1,401.8		)	(384.3		)	(344.7		)
Net claims and benefits payable, at beginning of year	11.1			1,335.6			1,373.2
Incurred losses and loss adjustment expenses related to:
Current year	32.0			181.6			721.0
Prior year's interest	—			9.4			56.7
Prior years	(0.1		)	(40.4		)	(35.0		)
Total incurred losses and loss adjustment expenses	31.9			150.6			742.7
Paid losses and loss adjustment expenses related to:
Current year	29.0			177.2			444.6
Prior years	3.0			1,297.9			335.7
Total paid losses and loss adjustment expenses	32.0			1,475.1			780.3
Net claims and benefits payable, at end of year	11.0			11.1			1,335.6
Plus: Reinsurance ceded and other	1,255.1			1,401.8			384.3
Claims and benefits payable, at end of year	$	1,266.1		$	1,412.9		$	1,719.9

XML 1047 R34.htm IDEA: XBRL DOCUMENT

Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Income, Net of Tax

The following tables summarize those reclassification adjustments (net of taxes):



	Year Ended December 31, 2017
	Unrealized gains on securities			OTTI		Accumulated other comprehensive income
Balance at December 31, 2016	$	95.1		$	8.6	$	103.7
Other comprehensive income before reclassifications	27.8			0.6		28.4
Amounts reclassified from accumulated other comprehensive income	(3.9		)	—		(3.9		)
Net current-period other comprehensive income	23.9			0.6		24.5
Balance at December 31, 2017	$	119.0		$	9.2	$	128.2



	Year Ended December 31, 2016
	Unrealized gains on securities			OTTI			Accumulated other comprehensive income
Balance at December 31, 2015	$	174.2		$	9.3		$	183.5
Other comprehensive income (loss) before reclassifications	17.1			(0.3		)	16.8
Amounts reclassified from accumulated other comprehensive income	(96.2		)	(0.4		)	(96.6		)
Net current-period other comprehensive loss	(79.1		)	(0.7		)	(79.8		)
Balance at December 31, 2016	$	95.1		$	8.6		$	103.7



	Year Ended December 31, 2015
	Unrealized gains on securities			OTTI			Accumulated other comprehensive income
Balance at December 31, 2014	$	273.5		$	10.3		$	283.8
Other comprehensive loss before reclassifications	(95.9		)	(1.5		)	(97.4		)
Amounts reclassified from accumulated other comprehensive income	(3.4		)	0.5			(2.9		)
Net current-period other comprehensive loss	(99.3		)	(1.0		)	(100.3		)
Balance at December 31, 2015	$	174.2		$	9.3		$	183.5

Summary of the Reclassifications Out of Accumulated Other Comprehensive Income

The following tables summarize the reclassifications out of accumulated other comprehensive income:



Details about accumulated other comprehensive income components	Amount reclassified from accumulated other comprehensive income									Affected line item in the statement where net income is presented
	Years Ended December 31,
	2017			2016			2015
Unrealized gains on securities	$	(6.0	)	$	(148.0	)	$	(5.2	)	Net realized gains on investments, excluding other-than-temporary impairment losses
	2.1			51.8			1.8			Provision for income taxes
	$	(3.9	)	$	(96.2	)	$	(3.4	)	Net of tax
OTTI	$	—		$	(0.6	)	$	0.8		Portion of net (gain) loss recognized in other comprehensive income, before taxes
	—			0.2			(0.3		)	Provision for income taxes
	$	—		$	(0.4	)	$	0.5		Net of tax
Total reclassifications for the period	$	(3.9	)	$	(96.6	)	$	(2.9	)	Net of tax

XML 1048 R35.htm IDEA: XBRL DOCUMENT

Nature of Operations and Items Impacting Basis of Presentation - Narrative (Details) - USD ($)
$ in Millions

12 Months Ended

Mar. 01, 2016

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Net cash consideration

^[1]

$ 0.0

$ 880.5

$ 0.0

Investments dividends paid

61.0

^[2]

890.0

^[2]

83.0

Cash dividends paid

1.9

379.4

83.0

59.1

510.6

83.0

Goodwill impairment

0.0

17.3

0.0

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

54.3

Retained Earnings

Assurant Employee Benefits | Disposal Group, Disposed of by Sale, Not Discontinued Operations

61.0

376.0

^[2]

83.0

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Net cash consideration

$ 884.4

Estimated gain on disposal before adjustment

604.1

Deferred gain on disposal

491.4

$ 62.5

Gain on disposal

604.1

Goodwill impairment

17.3

Pre-tax income on disposal

$ 14.0

$ 72.8

Assurant Employee Benefits | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Parent Company

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Net cash consideration

942.2

Estimated gain on disposal before adjustment

$ 656.5

[1]	from the sale of Assurant's Employee Benefits segment mainly through reinsurance transactions.
[2]	Dividends are required to be deducted from retained earnings and when depleted, deducted from additional paid-in capital.

XML 1049 R36.htm IDEA: XBRL DOCUMENT

Nature of Operations and Items Impacting Basis of Presentation - Gain by Transaction Component (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - Assurant Employee Benefits - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of entities	$ 0.0	$ 6.6
Novations, resulting in recognized gains	0.0	59.1
Loss on retroactive reinsurance component, before realized gains	0.0	(109.6)
Net loss prior to realized gains on transferred securities supporting retroactive component	0.0	(43.9)
Realized gains on transferred securities supporting retroactive	0.0	141.5
Amortization of deferred gains	90.0	356.1
Total	90.0	$ 453.7
Amortization of deferred gains, subsequent notations	$ 1.4

XML 1050 R37.htm IDEA: XBRL DOCUMENT

Nature of Operations and Items Impacting Basis of Presentation - Change in Presentation of Certain Preneed Life Insurance Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets
Other assets	$ 47.4	$ 85.9
Total assets	6,340.1	6,463.2
Liabilities
Unearned premiums	54.5	28.1
Total liabilities	6,133.1	6,298.6
Revenues
Net earned premiums	5.5	180.3	$ 1,047.5
Fees and other income	29.0	6.7	14.8
Total revenues	206.2	812.2	1,250.9
Benefits, losses and expenses
Policyholder benefits	58.6	152.7	749.6
Underwriting, general and administrative expenses	22.5	143.8	386.2
Total benefits, losses and expenses	81.1	$ 296.5	$ 1,135.8
Before Adjustment
Assets
Other assets	20.3
Total assets	6,313.0
Liabilities
Unearned premiums	27.4
Total liabilities	6,106.0
Revenues
Net earned premiums	5.8
Fees and other income	4.0
Total revenues	181.5
Benefits, losses and expenses
Policyholder benefits	35.7
Underwriting, general and administrative expenses	20.7
Total benefits, losses and expenses	56.4
Adjustment
Assets
Other assets	27.1
Total assets	27.1
Liabilities
Unearned premiums	27.1
Total liabilities	27.1
Revenues
Net earned premiums	(0.3)
Fees and other income	25.0
Total revenues	24.7
Benefits, losses and expenses
Policyholder benefits	22.9
Underwriting, general and administrative expenses	1.8
Total benefits, losses and expenses	$ 24.7

XML 1051 R38.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2018
Investments
Delinquency period to place loans on non-accrual status	90 days
Period after which financial information provided by the equity method investee was used by the entity	3 months
Subsequent Event \| Financial Instruments Measurement and Classification \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative adjustment		$ 8.1

XML 1052 R39.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Amortized Cost, Gross Unrealized Gains and Losses, Fair Value, and Other-Than-Temporary-Impairment of Fixed Maturity and Equity Securities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Investments
Cost or Amortized Cost	$ 1,002.0
Fair Value	1,208.8
Fixed maturity securities
Investments
Cost or Amortized Cost	802.9	$ 871.5
Gross Unrealized Gains	191.1	158.9
Gross Unrealized Losses	(0.7)	(1.7)
Fair Value	993.3	1,028.7
Fixed maturity securities \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	14.1	13.2
Fixed maturity securities \| United States Government and government agencies and authorities
Investments
Cost or Amortized Cost	3.1	1.9
Gross Unrealized Gains	0.1	0.1
Gross Unrealized Losses	0.0	0.0
Fair Value	3.2	2.0
Fixed maturity securities \| United States Government and government agencies and authorities \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Fixed maturity securities \| States, municipalities and political subdivisions
Investments
Cost or Amortized Cost	4.7	9.9
Gross Unrealized Gains	0.9	0.9
Gross Unrealized Losses	0.0	0.0
Fair Value	5.6	10.8
Fixed maturity securities \| States, municipalities and political subdivisions \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Fixed maturity securities \| Foreign governments
Investments
Cost or Amortized Cost	8.4	9.3
Gross Unrealized Gains	2.1	2.0
Gross Unrealized Losses	0.0	0.0
Fair Value	10.5	11.3
Fixed maturity securities \| Foreign governments \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Fixed maturity securities \| Asset-backed
Investments
Cost or Amortized Cost	28.7	0.2
Gross Unrealized Gains	0.3	0.0
Gross Unrealized Losses	0.0	0.0
Fair Value	29.0	0.2
Fixed maturity securities \| Asset-backed \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Fixed maturity securities \| Commercial mortgage-backed
Investments
Cost or Amortized Cost	3.5	3.4
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	(0.2)	(0.2)
Fair Value	3.3	3.2
Fixed maturity securities \| Commercial mortgage-backed \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Fixed maturity securities \| Residential mortgage-backed
Investments
Cost or Amortized Cost	39.6	33.7
Gross Unrealized Gains	2.5	3.3
Gross Unrealized Losses	(0.4)	(0.1)
Fair Value	41.7	36.9
Fixed maturity securities \| Residential mortgage-backed \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	1.6	2.0
Fixed maturity securities \| U.S. corporate
Investments
Cost or Amortized Cost	588.6	667.0
Gross Unrealized Gains	153.6	127.7
Gross Unrealized Losses	(0.1)	(1.3)
Fair Value	742.1	793.4
Fixed maturity securities \| U.S. corporate \| OTTI
Investments
OTTI in AOCI	12.5	11.2
Fixed maturity securities \| Foreign corporate
Investments
Cost or Amortized Cost	126.3	146.1
Gross Unrealized Gains	31.6	24.9
Gross Unrealized Losses	0.0	(0.1)
Fair Value	157.9	170.9
Fixed maturity securities \| Foreign corporate \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Equity securities
Investments
Cost or Amortized Cost	74.0	85.7
Gross Unrealized Gains	12.5	8.1
Gross Unrealized Losses	(0.1)	(0.2)
Fair Value	86.4	93.6
Equity securities \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Equity securities \| Common stocks
Investments
Cost or Amortized Cost	0.1	0.1
Gross Unrealized Gains	0.5	0.3
Gross Unrealized Losses	0.0	0.0
Fair Value	0.6	0.4
Equity securities \| Common stocks \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	0.0	0.0
Equity securities \| Non-redeemable preferred stocks
Investments
Cost or Amortized Cost	73.9	85.6
Gross Unrealized Gains	12.0	7.8
Gross Unrealized Losses	(0.1)	(0.2)
Fair Value	85.8	93.2
Equity securities \| Non-redeemable preferred stocks \| OTTI \| Available-for-sale securities
Investments
OTTI in AOCI	$ 0.0	$ 0.0

XML 1053 R40.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Amortized Cost, Gross Unrealized Gains and Losses, Fair Value, and Other-Than-Temporary-Impairment of Fixed Maturity and Equity Securities - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Investments
Investment exposure	$ 1,002.0
Credit concentration \| Corporate fixed maturity and equity securities \| Energy Sector \| Investment rated as investment grade
Investments
Concentration percentage	93.00%	93.00%
Credit concentration \| Corporate fixed maturity and equity securities \| Europe
Investments
Investment exposure	$ 89.1	$ 98.9
Investment portfolio \| Credit concentration \| Corporate fixed maturity and equity securities \| Energy Sector
Investments
Investment exposure	109.9	107.7
Unrealized gains	20.1	15.4
Investment portfolio \| Credit concentration \| Corporate fixed maturity and equity securities \| Europe
Investments
Unrealized gains	$ 18.5	$ 14.8
Investment portfolio \| Credit concentration \| Corporate fixed maturity and equity securities \| Europe \| Finance Sector
Investments
Concentration percentage	34.00%	34.00%
Investment portfolio \| Credit concentration \| Corporate fixed maturity and equity securities \| United Kingdom
Investments
Concentration percentage	4.00%	4.00%
Investment portfolio \| Maximum \| States, municipalities and political subdivisions \| Credit concentration \| Individual U. S. states
Investments
Concentration percentage	0.50%	0.50%

XML 1054 R41.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Cost or Amortized Cost and Fair Value of Fixed Maturity Securities By Contractual Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Cost or Amortized Cost
Total	$ 802.9	$ 871.5
Fair Value
Total	993.3	$ 1,028.7
Fixed maturity securities
Cost or Amortized Cost
Due in one year or less	7.3
Due after one year through five years	73.9
Due after five years through ten years	93.4
Due after ten years	556.5
Total Cost or Amortized Cost, contractual maturity	731.1
Fair Value
Due in one year or less	7.4
Due after one year through five years	79.5
Due after five years through ten years	106.6
Due after ten years	725.8
Total Fair Value, contractual maturity	919.3
Asset-backed
Cost or Amortized Cost
Cost or Amortized Cost	28.7
Fair Value
Fair Value	29.0
Commercial mortgage-backed
Cost or Amortized Cost
Cost or Amortized Cost	3.5
Fair Value
Fair Value	3.3
Residential mortgage-backed
Cost or Amortized Cost
Cost or Amortized Cost	39.6
Fair Value
Fair Value	$ 41.7

XML 1055 R42.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Major Categories of Net Investment Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Major categories of net investment income
Total investment income	$ 66.3	$ 99.8	$ 175.4
Investment expenses	(2.1)	(2.0)	(5.9)
Net investment income	64.2	97.8	169.5
Fixed maturity securities
Major categories of net investment income
Total investment income	52.4	74.1	130.0
Equity securities
Major categories of net investment income
Total investment income	5.4	7.0	9.2
Commercial mortgage loans on real estate
Major categories of net investment income
Total investment income	5.6	10.2	30.4
Policy loans
Major categories of net investment income
Total investment income	0.4	0.5	0.5
Other investments
Major categories of net investment income
Total investment income	2.5	7.7	5.3
Cash and cash equivalents
Major categories of net investment income
Total investment income	$ 0.0	$ 0.3	$ 0.0

XML 1056 R43.htm IDEA: XBRL DOCUMENT

Investments - Proceeds From Sales of Available-For-Sale Securities and the Gross Realized Gains and Gross Realized Losses (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Available-for-sale securities, proceeds and realized gains (losses) included in earnings
Proceeds from sales	$ 218.7	$ 1,939.4	$ 312.0
Gross realized gains	7.1	168.9	9.7
Gross realized losses	$ (0.4)	(19.9)	$ (4.3)
Other information
Average period of time for which securities were traded continuously at a price below book value for securities sold at a loss	2 months
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Assurant Employee Benefits
Available-for-sale securities, proceeds and realized gains (losses) included in earnings
Gross realized gains		145.6
Gross realized losses		$ (15.9)

XML 1057 R44.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Net Realized Gains (Losses), Including Other-Than-Temporary Impairments (Details) - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Total net realized gains related to sales and other

$ 9.8

$ 165.1

$ 17.0

Total net realized losses related to other-than-temporary impairments

(0.1)

(2.2)

(7.0)

Total net realized gains

^[1]

9.7

162.9

10.0

Disposal Group, Disposed of by Sale, Not Discontinued Operations | Assurant Employee Benefits

Net gains related to sale

0.0

141.5

Fixed maturity securities

Total net realized gains related to sales and other

6.1

143.6

3.1

Total net realized losses related to other-than-temporary impairments

(0.1)

(0.3)

(2.4)

Equity securities

Total net realized gains related to sales and other

0.2

5.7

1.8

Total net realized gains related to sales and other

1.3

13.6

0.4

Other investments

Total net realized gains related to sales and other

2.2

11.7

Total net realized losses related to other-than-temporary impairments

$ 0.0

$ (1.9)

$ (4.6)

[1]	from the sale of Assurant's Employee Benefits segment mainly through reinsurance transactions.

XML 1058 R45.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Credit Loss Impairments on Fixed Maturity Securities for Which a Portion of the OTTI Loss was Recognized in AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other-Than-Temporary Impairments
OTTI	$ 0.1	$ 2.0	$ 7.7
OTTI recognized in earnings	0.1	2.2	7.0
OTTI recognized in AOCI	0.0	(0.2)	0.7
Fixed maturity securities
Other-Than-Temporary Impairments
OTTI recognized in earnings	0.1	0.3	2.4
Credit loss impairments on fixed maturity securities for which a portion of the OTTI loss was recognized in AOCI
Balance, beginning of year	11.1	13.6	13.5
Additions for credit loss impairments recognized in the current period on securities previously impaired	0.0	0.3	0.0
Additions for credit loss impairments recognized in the current period on securities not previously impaired	0.0	0.0	0.7
Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security	(0.3)	(0.5)	(0.2)
Reductions for credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(0.1)	(2.3)	(0.4)
Balance, end of year	$ 10.7	$ 11.1	$ 13.6

XML 1059 R46.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Gross Unrealized Losses on Fixed Maturity Securities and Equity Securities (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) security	Dec. 31, 2016 USD ($) security
Fair value of securities in a continuous unrealized loss position
Total	$ 14.3
Unrealized losses on securities in a continuous unrealized loss position
Total gross unrealized losses as a percentage of the aggregate fair value of the related securities	3.00%	2.00%
Percentage of gross unrealized losses in a continuous loss position for less than twelve months	69.00%	84.00%
Number of individual securities comprising total gross unrealized losses \| security	25	69
Fixed maturity securities
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months	$ 9.5	$ 60.4
Fair value of securities in a continuous unrealized loss position, 12 months or more	4.8	3.2
Total	14.3	63.6
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months	(0.4)	(1.4)
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more	(0.3)	(0.3)
Unrealized losses on securities in a continuous unrealized loss position, Total	(0.7)	(1.7)
Fixed maturity securities \| Commercial mortgage-backed
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months	0.0	3.2
Fair value of securities in a continuous unrealized loss position, 12 months or more	3.3	0.0
Total	3.3	3.2
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months	0.0	(0.2)
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more	(0.2)	0.0
Unrealized losses on securities in a continuous unrealized loss position, Total	(0.2)	(0.2)
Fixed maturity securities \| Residential mortgage-backed
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months	9.5	1.9
Fair value of securities in a continuous unrealized loss position, 12 months or more	0.0	0.0
Total	9.5	1.9
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months	(0.4)	(0.1)
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more	0.0	0.0
Unrealized losses on securities in a continuous unrealized loss position, Total	(0.4)	(0.1)
Fixed maturity securities \| U.S. corporate
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months	0.0	55.3
Fair value of securities in a continuous unrealized loss position, 12 months or more	1.5	1.2
Total	1.5	56.5
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months	0.0	(1.1)
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more	(0.1)	(0.2)
Unrealized losses on securities in a continuous unrealized loss position, Total	(0.1)	(1.3)
Fixed maturity securities \| Foreign corporate
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months		0.0
Fair value of securities in a continuous unrealized loss position, 12 months or more		2.0
Total		2.0
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months		0.0
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more		(0.1)
Unrealized losses on securities in a continuous unrealized loss position, Total		(0.1)
Equity securities \| Non-redeemable preferred stocks
Fair value of securities in a continuous unrealized loss position
Fair value of securities in a continuous unrealized loss position, Less than 12 months	2.5	13.4
Fair value of securities in a continuous unrealized loss position, 12 months or more	0.0	0.0
Total	2.5	13.4
Unrealized losses on securities in a continuous unrealized loss position
Unrealized losses on securities in a continuous unrealized loss position, Less than 12 months	(0.1)	(0.2)
Unrealized losses on securities in a continuous unrealized loss position, 12 months or more	0.0	0.0
Unrealized losses on securities in a continuous unrealized loss position, Total	$ (0.1)	$ (0.2)

XML 1060 R47.htm IDEA: XBRL DOCUMENT

Investments - Schedule of Cost or Amortized Cost and Fair Value of Available-For-Sale Fixed Maturity Securities in an Unrealized Loss Position (Details) $ in Millions	Dec. 31, 2017 USD ($)
Cost or Amortized Cost
Total	$ 15.0
Fair Value
Total	14.3
Fixed maturity securities
Cost or Amortized Cost
Due in one year through five years	1.6
Fair Value
Due in one year through five years	1.5
Commercial mortgage-backed
Cost or Amortized Cost
Cost or Amortized Cost	3.5
Fair Value
Fair Value	3.3
Residential mortgage-backed
Cost or Amortized Cost
Cost or Amortized Cost	9.9
Fair Value
Fair Value	$ 9.5

XML 1061 R48.htm IDEA: XBRL DOCUMENT

Investments - Summary of Loan-To-Value and Average Debt-Service Coverage Ratios (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Commercial mortgage loans
Net commercial mortgage loans on real estate	$ 78.7	$ 98.4
70% and less \| Maximum
Commercial mortgage loans
Loan-to-value percentage	70.00%	70.00%
81 - 95% \| Minimum
Commercial mortgage loans
Loan-to-value percentage	81.00%	81.00%
81 - 95% \| Maximum
Commercial mortgage loans
Loan-to-value percentage	95.00%	95.00%
Greater than 95% \| Minimum
Commercial mortgage loans
Loan-to-value percentage	95.00%	95.00%
Commercial mortgage loans
Commercial mortgage loans
Gross commercial mortgage loans on real estate		$ 100.1
Less valuation allowance	$ (0.4)	(1.7)
Net commercial mortgage loans on real estate	78.7	$ 98.4
% of Gross Mortgage Loans		100.00%
Debt- Service Coverage Ratio		1.88
Decrease in loan valuation allowance	1.3
Commercial mortgage loans \| Minimum
Commercial mortgage loans
Gross commercial mortgage loans on real estate	0.1	$ 0.1
Commercial mortgage loans \| Maximum
Commercial mortgage loans
Gross commercial mortgage loans on real estate	8.4	6.6
Commercial mortgage loans \| 70% and less
Commercial mortgage loans
Gross commercial mortgage loans on real estate	$ 79.1	$ 92.3
% of Gross Mortgage Loans	100.00%	92.20%
Debt- Service Coverage Ratio	2.11	1.80
Commercial mortgage loans \| 81 - 95%
Commercial mortgage loans
Gross commercial mortgage loans on real estate		$ 3.0
% of Gross Mortgage Loans		3.00%
Debt- Service Coverage Ratio		1.11
Commercial mortgage loans \| Greater than 95%
Commercial mortgage loans
Gross commercial mortgage loans on real estate		$ 4.8
% of Gross Mortgage Loans		4.80%
Debt- Service Coverage Ratio		3.86
Commercial mortgage loans \| Investment portfolio \| Geographic concentration risk \| California, Alabama and Utah
Commercial mortgage loans
Concentration percentage	41.00%
Fixed maturity securities
Commercial mortgage loans
Fixed maturity securities on deposit with various governmental authorities	$ 6.2	$ 6.1

XML 1062 R49.htm IDEA: XBRL DOCUMENT

Investments - Variable Interest Entities (Details) $ in Millions	Dec. 31, 2017 USD ($)
Investments, Debt and Equity Securities [Abstract]
Maximum loss exposure in recorded carrying value	$ 32.3
Carrying value of unfunded commitments	$ 0.9

XML 1063 R50.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures - Schedule of the Company's Fair Value Hierarchy for Recurring Basis Assets and Liabilities (Details) - Recurring basis - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Level 1
Financial Assets
Total financial assets	$ 1,607.8	$ 1,448.3
Financial Liabilities
Liabilities related to separate accounts	1,600.8	1,438.6
Level 1 \| Fixed maturity securities \| United States Government and government agencies and authorities
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| States, municipalities and political subdivisions
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| Foreign governments
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| Asset-backed
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| Commercial mortgage-backed
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| Residential mortgage-backed
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| U.S. corporate
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Fixed maturity securities \| Foreign corporate
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Equity securities \| Common Stock
Financial Assets
Total financial assets	0.6	0.4
Level 1 \| Equity securities \| Non-redeemable preferred stocks
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Other investments
Financial Assets
Total financial assets	6.4	2.7
Level 1 \| Cash equivalents
Financial Assets
Total financial assets		6.6
Level 1 \| Other assets
Financial Assets
Total financial assets	0.0	0.0
Level 1 \| Assets held in separate accounts
Financial Assets
Total financial assets	1,600.8	1,438.6
Level 2
Financial Assets
Total financial assets	1,104.0	1,192.6
Financial Liabilities
Liabilities related to separate accounts	43.5	61.1
Level 2 \| Fixed maturity securities \| United States Government and government agencies and authorities
Financial Assets
Total financial assets	3.2	2.0
Level 2 \| Fixed maturity securities \| States, municipalities and political subdivisions
Financial Assets
Total financial assets	5.6	10.8
Level 2 \| Fixed maturity securities \| Foreign governments
Financial Assets
Total financial assets	10.5	11.3
Level 2 \| Fixed maturity securities \| Asset-backed
Financial Assets
Total financial assets	24.3	0.2
Level 2 \| Fixed maturity securities \| Commercial mortgage-backed
Financial Assets
Total financial assets	0.0	0.0
Level 2 \| Fixed maturity securities \| Residential mortgage-backed
Financial Assets
Total financial assets	41.7	36.9
Level 2 \| Fixed maturity securities \| U.S. corporate
Financial Assets
Total financial assets	741.9	789.8
Level 2 \| Fixed maturity securities \| Foreign corporate
Financial Assets
Total financial assets	148.6	160.9
Level 2 \| Equity securities \| Common Stock
Financial Assets
Total financial assets	0.0	0.0
Level 2 \| Equity securities \| Non-redeemable preferred stocks
Financial Assets
Total financial assets	84.7	92.1
Level 2 \| Other investments
Financial Assets
Total financial assets	0.0	27.5
Level 2 \| Cash equivalents
Financial Assets
Total financial assets		0.0
Level 2 \| Other assets
Financial Assets
Total financial assets	0.0	0.0
Level 2 \| Assets held in separate accounts
Financial Assets
Total financial assets	43.5	61.1
Level 3
Financial Assets
Total financial assets	18.8	18.2
Financial Liabilities
Liabilities related to separate accounts	0.0	0.0
Level 3 \| Fixed maturity securities \| United States Government and government agencies and authorities
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Fixed maturity securities \| States, municipalities and political subdivisions
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Fixed maturity securities \| Foreign governments
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Fixed maturity securities \| Asset-backed
Financial Assets
Total financial assets	4.7	0.0
Level 3 \| Fixed maturity securities \| Commercial mortgage-backed
Financial Assets
Total financial assets	3.3	3.2
Level 3 \| Fixed maturity securities \| Residential mortgage-backed
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Fixed maturity securities \| U.S. corporate
Financial Assets
Total financial assets	0.2	3.6
Level 3 \| Fixed maturity securities \| Foreign corporate
Financial Assets
Total financial assets	9.3	10.0
Level 3 \| Equity securities \| Common Stock
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Equity securities \| Non-redeemable preferred stocks
Financial Assets
Total financial assets	1.1	1.1
Level 3 \| Other investments
Financial Assets
Total financial assets	0.0	0.0
Level 3 \| Cash equivalents
Financial Assets
Total financial assets		0.0
Level 3 \| Other assets
Financial Assets
Total financial assets	0.2	0.3
Level 3 \| Assets held in separate accounts
Financial Assets
Total financial assets	0.0	0.0
Total
Financial Assets
Total financial assets	2,730.6	2,659.1
Financial Liabilities
Liabilities related to separate accounts	1,644.3	1,499.7
Total \| Fixed maturity securities \| United States Government and government agencies and authorities
Financial Assets
Total financial assets	3.2	2.0
Total \| Fixed maturity securities \| States, municipalities and political subdivisions
Financial Assets
Total financial assets	5.6	10.8
Total \| Fixed maturity securities \| Foreign governments
Financial Assets
Total financial assets	10.5	11.3
Total \| Fixed maturity securities \| Asset-backed
Financial Assets
Total financial assets	29.0	0.2
Total \| Fixed maturity securities \| Commercial mortgage-backed
Financial Assets
Total financial assets	3.3	3.2
Total \| Fixed maturity securities \| Residential mortgage-backed
Financial Assets
Total financial assets	41.7	36.9
Total \| Fixed maturity securities \| U.S. corporate
Financial Assets
Total financial assets	742.1	793.4
Total \| Fixed maturity securities \| Foreign corporate
Financial Assets
Total financial assets	157.9	170.9
Total \| Equity securities \| Common Stock
Financial Assets
Total financial assets	0.6	0.4
Total \| Equity securities \| Non-redeemable preferred stocks
Financial Assets
Total financial assets	85.8	93.2
Total \| Other investments
Financial Assets
Total financial assets	6.4	30.2
Total \| Cash equivalents
Financial Assets
Total financial assets		6.6
Total \| Other assets
Financial Assets
Total financial assets	0.2	0.3
Total \| Assets held in separate accounts
Financial Assets
Total financial assets	$ 1,644.3	$ 1,499.7

XML 1064 R51.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures - Summary of the Change in Balance Sheet Carrying Value Associated with Level 3 Financial Assets Carried at Fair Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	$ 18.2	$ 28.2
Total (losses) gains (realized/unrealized) included in earnings	0.1	1.5
Net unrealized gains (losses) included in other comprehensive income	0.1	(1.6)
Purchases	29.0	5.5
Sales	(8.6)	(13.9)
Transfers in	0.3	0.1
Transfers out	(20.3)	(1.6)
Balance, end of period	18.8	18.2
Other assets
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	0.3	0.4
Total (losses) gains (realized/unrealized) included in earnings	(0.1)	(0.1)
Net unrealized gains (losses) included in other comprehensive income	0.0	0.0
Purchases	0.0	0.0
Sales	0.0	0.0
Transfers in	0.0	0.0
Transfers out	0.0	0.0
Balance, end of period	0.2	0.3
States, municipalities and political subdivisions
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	0.0	0.0
Total (losses) gains (realized/unrealized) included in earnings	0.1	0.0
Net unrealized gains (losses) included in other comprehensive income	(0.1)	0.0
Purchases	29.0	1.3
Sales	(7.4)	(1.3)
Transfers in	0.0	0.0
Transfers out	(16.9)	0.0
Balance, end of period	4.7	0.0
Commercial mortgage-backed
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	3.2	0.1
Total (losses) gains (realized/unrealized) included in earnings	0.1	0.0
Net unrealized gains (losses) included in other comprehensive income	0.0	(0.2)
Purchases	0.0	3.4
Sales	0.0	(0.1)
Transfers in	0.0	0.0
Transfers out	0.0	0.0
Balance, end of period	3.3	3.2
U.S. corporate
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	3.6	10.7
Total (losses) gains (realized/unrealized) included in earnings	0.0	0.5
Net unrealized gains (losses) included in other comprehensive income	0.3	(0.6)
Purchases	0.0	0.8
Sales	(0.6)	(6.3)
Transfers in	0.3	0.1
Transfers out	(3.4)	(1.6)
Balance, end of period	0.2	3.6
Foreign corporate
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	10.0	15.9
Total (losses) gains (realized/unrealized) included in earnings	0.0	1.1
Net unrealized gains (losses) included in other comprehensive income	(0.1)	(0.8)
Purchases	0.0	0.0
Sales	(0.6)	(6.2)
Transfers in	0.0	0.0
Transfers out	0.0	0.0
Balance, end of period	9.3	10.0
Non-redeemable preferred stocks
Changes in balance sheet carrying value associated with Level 3 financial assets carried at fair value
Balance, beginning of period	1.1	1.1
Total (losses) gains (realized/unrealized) included in earnings	0.0	0.0
Net unrealized gains (losses) included in other comprehensive income	0.0	0.0
Purchases	0.0	0.0
Sales	0.0	0.0
Transfers in	0.0	0.0
Transfers out	0.0	0.0
Balance, end of period	$ 1.1	$ 1.1

XML 1065 R52.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Level 3 fixed maturity and equity securities	$ 18.8	$ 18.2	$ 28.2
Single Broker Quote
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Level 3 fixed maturity and equity securities	0.2
Independent and Non-Binding Broker Quotes
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Level 3 fixed maturity and equity securities	$ 18.4

XML 1066 R53.htm IDEA: XBRL DOCUMENT

Fair Value Disclosures - Schedule of Carrying Value, Fair Value Amount and Hierarchy Level of the Financial Instruments That Are Not Recognized or Are Not Carried at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Financial assets:
Commercial mortgage loans on real estate	$ 78.7	$ 98.4
Policy loans	6.7	7.4
Level 1
Financial assets:
Commercial mortgage loans on real estate	0.0	0.0
Policy loans	6.7	7.4
Other investments	0.0	0.0
Total financial assets	6.7	7.4
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal)	0.0	0.0
Level 2
Financial assets:
Commercial mortgage loans on real estate	0.0	0.0
Policy loans	0.0	0.0
Other investments	0.0	0.0
Total financial assets	0.0	0.0
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal)	0.0	0.0
Level 3
Financial assets:
Commercial mortgage loans on real estate	82.7	103.0
Policy loans	0.0	0.0
Other investments	0.2	0.2
Total financial assets	82.9	103.2
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal)	227.5	246.0
Carrying Value
Financial assets:
Commercial mortgage loans on real estate	78.7	98.4
Policy loans	6.7	7.4
Other investments	0.2	0.2
Total financial assets	85.6	106.0
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal)	210.5	218.1
Total
Financial assets:
Commercial mortgage loans on real estate	82.7	103.0
Policy loans	6.7	7.4
Other investments	0.2	0.2
Total financial assets	89.6	110.6
Financial liabilities:
Policy reserves under investment products (Individual and group annuities, subject to discretionary withdrawal)	$ 227.5	$ 246.0

XML 1067 R54.htm IDEA: XBRL DOCUMENT

Income Taxes Income Taxes - Schedule of Company's Current and Deferred Federal Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Provision from the reduction of net deferred tax assets from enactment of Tax Cuts and Jobs Act	$ 4.5
Current (benefit) expense	(3.3)	$ 271.4	$ 29.8
Deferred expense (benefit)	49.5	(65.2)	11.2
Total income tax expense	$ 46.2	$ 206.2	$ 41.0

XML 1068 R55.htm IDEA: XBRL DOCUMENT

Income Taxes - Schedule of Reconciliation of the Federal Income Tax Rate to the Company's Effective Income Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of the federal income tax rate to the Company's effective income tax rate
Federal income tax rate:	35.00%	35.00%	35.00%
Reconciling items:
Dividends-received deduction	(1.20%)	(0.30%)	(1.70%)
TCJA net deferred tax asset revaluation	3.60%	0.00%	0.00%
Capital contribution from affiliated entity impacting taxable income	0.00%	3.70%	0.00%
Goodwill	0.00%	1.20%	0.00%
Nondeductible health insurer fee	0.00%	0.50%	2.30%
Change in liability for prior years' taxes	(0.50%)	0.00%	0.50%
Other	0.10%	(0.10%)	(0.50%)
Effective income tax rate	37.00%	40.00%	35.60%
Unrecognized tax benefits (less than)	$ 1.0	$ 1.0	$ 1.0

XML 1069 R56.htm IDEA: XBRL DOCUMENT

Income Taxes - Schedule of Significant Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Deferred gain on disposal of businesses	$ 22,000,000	$ 70,200,000
Deferred acquisition costs	13,300,000	22,800,000
Investments, net	5,700,000	17,200,000
Policyholder and separate account reserves	7,100,000	13,300,000
Employee and Post-Retirement Benefits	2,800,000	4,600,000
Total deferred tax asset	50,900,000	128,100,000
Deferred tax liabilities:
Net unrealized appreciation on securities	(42,600,000)	(57,900,000)
Other	(1,400,000)	(700,000)
Total deferred tax liability	(44,000,000)	(58,600,000)
Net deferred income tax assets	6,900,000	$ 69,500,000
Cumulative valuation allowance against deferred tax assets	0
Net operating or capital loss carryforwards	$ 0

XML 1070 R57.htm IDEA: XBRL DOCUMENT

Stockholder's Equity (Details) - USD ($)
$ / shares in Units, $ in Millions

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Equity [Abstract]

Authorized shares of common stock (in shares)

1,000,000

Common stock, par value (in dollars per share)

$ 5

Common stock, shares issued (in shares)

1,000,000

Common stock, shares outstanding (in shares)

1,000,000

Dividends paid

$ 61.0

$ 890.0

$ 83.0

Cash dividends paid

1.9

379.4

83.0

Investments dividends paid

59.1

510.6

83.0