Horace Mann Educators (HMN) 10-Q 7 Nov 23 2023 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2023	Oct. 31, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-10890
Entity Registrant Name	HORACE MANN EDUCATORS CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	37-0911756
Entity Address, Address Line One	1 Horace Mann Plaza
Entity Address, City or Town	Springfield
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	62715-0001
City Area Code	217
Local Phone Number	789-2500
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	HMN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		40,835,262
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000850141
Current Fiscal Year End Date	--12-31

CONSOLIDATED BALANCE SHEETS (UN

CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Investments
Fixed maturity securities, available for sale, at fair value (amortized cost, net 2023, $5,641.6; 2022, $5,756.9)	$ 4,961.6	$ 5,185
Equity securities at fair value	77	99.6
Limited partnership interests	1,142.6	983.7
Short-term and other investments	338.2	319.3
Total investments	6,519.4	6,587.6
Cash	34.5	42.8
Deferred policy acquisition costs	334.9	330.6
Reinsurance balances receivable	441.1	468
Deposit asset on reinsurance	2,515.7	2,516.6
Intangible assets	174	185.2
Goodwill	54.3	54.3
Other assets	364.6	328.7
Separate Account variable annuity assets	2,974	2,792.3
Total assets	13,412.5	13,306.1
Policy liabilities
Future policy benefit reserves	1,613.4	1,718
Policyholders' account balances	5,204	5,260.6
Unpaid claims and claim expenses	586.6	564
Unearned premiums	296.4	266.1
Total policy liabilities	7,700.4	7,808.7
Other policyholder funds	915.9	809.3
Other liabilities	224.8	299.5
Short-term debt	0	249
Long-term debt	546.1	249
Separate Account variable annuity liabilities	2,974	2,792.3
Total liabilities	12,361.2	12,207.8
Preferred stock, $0.001 par value, authorized 1,000,000 shares; none issued	0	0
Common stock, $0.001 par value, authorized 75,000,000 shares; issued, 2023, 66,746,349; 2022, 66,618,465	0.1	0.1
Additional paid-in capital	508.5	502.6
Retained earnings	1,476.5	1,512.4
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment losses on fixed maturity securities	(534.7)	(449.6)
Net reserve remeasurements attributable to discount rates	133.6	59
Net funded status of benefit plans	(8.8)	(8.8)
Treasury stock, at cost, 2023, 25,911,087 shares; 2022, 25,714,153 shares	(523.9)	(517.4)
Total shareholders’ equity	1,051.3	1,098.3
Total liabilities and shareholders’ equity	$ 13,412.5	$ 13,306.1

CONSOLIDATED BALANCE SHEETS (_2

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Fixed maturities, available for sale, amortized cost	$ 5,641.6	$ 5,756.9
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	66,746,349	66,618,465
Treasury stock (in shares)	25,911,087	25,714,153

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues
Net premiums and contract charges earned	$ 266	$ 257.4	$ 782.6	$ 768.6
Net investment income	118.9	97.6	327.8	300.7
Net investment losses	(8.4)	(12.8)	(29.7)	(43.8)
Other income	2.2	0.4	8.3	9.7
Total revenues	378.7	342.6	1,089	1,035.2
Benefits, losses and expenses
Benefits, claims and settlement expenses	199.2	167.1	587.6	545.7
Interest credited	52.7	44.8	152.1	125.9
Operating expenses	75.7	75.6	235.6	229.4
DAC amortization expense	26.3	22.2	75.4	65.7
Intangible asset amortization expense	3.7	4.2	11.1	12.6
Interest expense	7.5	5.3	21.1	13.5
Total benefits, losses and expenses	365.1	319.2	1,082.9	992.8
Income before income taxes	13.6	23.4	6.1	42.4
Income tax expense	1.9	3	0.6	5.9
Net income	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Net income per share
Basic (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Diluted (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Weighted average number of shares and equivalent shares
Basic (in shares)	41.3	41.4	41.3	41.7
Diluted (in shares)	41.4	41.6	41.4	41.9
Statements of Comprehensive Income (Loss)
Net income (loss)	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Other comprehensive loss, net of tax:
Change in net unrealized investment losses on fixed maturity securities	(141)	(215)	(85.1)	(843.9)
Change in net reserve remeasurements attributable to discount rates	90.7	110.7	74.6	460.7
Change in net funded status of benefit plans	0	0	0	0
Other comprehensive loss	(50.3)	(104.3)	(10.5)	(383.2)
Comprehensive income (loss)	$ (38.6)	$ (83.9)	$ (5)	$ (346.7)

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Effect of the Adoption of ASU 2018-12	Common stock, $0.001 par value	Common stock, $0.001 par value Effect of the Adoption of ASU 2018-12	Additional paid-in capital	Additional paid-in capital Effect of the Adoption of ASU 2018-12	Retained earnings	Retained earnings Effect of the Adoption of ASU 2018-12		Accumulated other comprehensive income (loss), net of tax:	Accumulated other comprehensive income (loss), net of tax: Effect of the Adoption of ASU 2018-12	Treasury stock, at cost	Treasury stock, at cost Effect of the Adoption of ASU 2018-12
Ending balance at Dec. 31, 2021			$ 0.1		$ 495.3		$ 1,547	$ 22.1		$ (50)	$ (330.5)	$ (493.4)
Ending balance (Accounting Standards Update 2018-12) at Dec. 31, 2021							(0.8)	(0.8)	[1]
Increase (Decrease) in Stockholders' Equity
Accounting Standards Update [Extensible List]	Accounting Standards Update 2018-12
Options exercised and conversion of common and restricted stock units					(1.1)
Share-based compensation expense					6.2
Net income (loss)	$ 36.5	$ 20.6					36.5	20.6
Dividends, 2023, $0.33 per share; 2022, $0.32 per share							(40.3)	0.1
Change in net unrealized investment losses on fixed maturity securities										(843.9)	(156.5)
Change in net reserve remeasurements attributable to discount rates	460.7	460.7								460.7	460.7
Treasury stock acquired - share repurchase authorization												(24)
Ending balance at Sep. 30, 2022	1,092.3	15.7	0.1	$ 0	500.4	$ 0	1,542.4	42		(433.2)	(26.3)	(517.4)	$ 0
Beginning balance at Jun. 30, 2022			0.1		498.1		1,535.3	35.4		(328.9)	(98.3)	(507.4)
Increase (Decrease) in Stockholders' Equity
Options exercised and conversion of common and restricted stock units					0.2
Share-based compensation expense					2.1
Net income (loss)	20.4	6.5					20.4	6.5
Dividends, 2023, $0.33 per share; 2022, $0.32 per share							(13.3)	0.1
Change in net unrealized investment losses on fixed maturity securities										(215)	(38.7)
Change in net reserve remeasurements attributable to discount rates	110.7	110.7								110.7	110.7
Treasury stock acquired - share repurchase authorization												(10)
Ending balance at Sep. 30, 2022	1,092.3	15.7	0.1	$ 0	500.4	$ 0	1,542.4	$ 42		(433.2)	$ (26.3)	(517.4)	$ 0
Beginning balance at Dec. 31, 2022	1,098.3	$ 10.1	0.1		502.6		1,512.4			(399.4)		(517.4)
Increase (Decrease) in Stockholders' Equity
Options exercised and conversion of common and restricted stock units					(0.8)
Share-based compensation expense					6.7
Net income (loss)	5.5						5.5
Dividends, 2023, $0.33 per share; 2022, $0.32 per share							(41.4)
Change in net unrealized investment losses on fixed maturity securities										(85.1)
Change in net reserve remeasurements attributable to discount rates	74.6									74.6
Treasury stock acquired - share repurchase authorization												(6.5)
Ending balance at Sep. 30, 2023	1,051.3		0.1		508.5		1,476.5			(409.9)		(523.9)
Beginning balance at Jun. 30, 2023			0.1		505.7		1,478.6			(359.6)		(522.9)
Increase (Decrease) in Stockholders' Equity
Options exercised and conversion of common and restricted stock units					0.3
Share-based compensation expense					2.5
Net income (loss)	11.7						11.7
Dividends, 2023, $0.33 per share; 2022, $0.32 per share							(13.8)
Change in net unrealized investment losses on fixed maturity securities										(141)
Change in net reserve remeasurements attributable to discount rates	90.7									90.7
Treasury stock acquired - share repurchase authorization												(1)
Ending balance at Sep. 30, 2023	$ 1,051.3		$ 0.1		$ 508.5		$ 1,476.5			$ (409.9)		$ (523.9)
[1]See Note 1 to the Consolidated Financial Statements for information regarding the adoption of ASU 2018-12.

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Statement of Stockholders' Equity [Abstract]
Common stock, par value (in usd per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Cash dividends (in usd per share)	$ 0.32	$ 0.33	$ 0.32

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows - operating activities
Net income (loss)	$ 5.5	$ 36.5
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment losses	29.8	43.8
Depreciation and intangible asset amortization	19.5	20.7
Share-based compensation expense	7.1	6.7
Loss (gain) from equity method investments, net of dividends or distributions	9	2.1
Changes in:
Insurance liabilities	122.3	223.5
Amounts due under reinsurance agreements	26.9	(304.3)
Income tax liabilities	8.1	125.1
Other operating assets and liabilities	(28.1)	(42.6)
Other, net	(0.9)	4.3
Net cash provided by operating activities	199.2	115.8
Fixed maturity securities
Purchases	(462.3)	(901.3)
Sales	341.4	529.9
Maturities, paydowns, calls and redemptions	213.9	428.8
Equity securities
Purchases	(2.4)	(4.5)
Sales and repayments	16.6	7
Limited partnership interests
Purchases	(183.2)	(332.3)
Sales	15.1	45.5
Change in short-term and other investments, net	(24.7)	95.4
Acquisition of business, net of cash acquired	0	(164.4)
Net cash used in investing activities	(85.6)	(295.9)
Cash flows - financing activities
Dividends paid to shareholders	(40.4)	(39.5)
Proceeds from issuance of 2023 Senior Notes due 2028	297.7	0
Principal repayment on Revolving Credit Facility	(249)	0
Principal repayment on FHLB borrowings	0	(5)
Treasury stock acquired	(6.5)	(24)
Withholding tax payments on RSUs tendered	(1.8)	(2.4)
Annuity contracts: variable, fixed and FHLB funding agreements:
Deposits including advances from FHLB funding agreements	571.8	516.7
Benefits, withdrawals and net transfers to Separate Account variable annuity assets	(464.3)	(340.6)
Repayment of FHLB funding agreements	(89.5)	(94)
Life policy accounts:
Deposits	9.4	7.7
Withdrawals and surrenders	(3.2)	(2.8)
Change in deposit asset on reinsurance	(78.6)	(32.4)
Net increase (decrease) in reverse repurchase agreements	(70)	95.2
Change in book overdrafts	2.5	3.7
Net cash provided by (used in) financing activities	(121.9)	82.6
Net decrease in cash	(8.3)	(97.5)
Cash at beginning of period	42.8	133.7
Cash at end of period	$ 34.5	$ 36.2

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Business Horace Mann Educators Corporation is a holding company for insurance subsidiaries that market and underwrite personal lines of property and casualty insurance products (primarily personal lines of auto and property insurance), life insurance products, retirement products (primarily tax-qualified fixed and variable annuities), worksite direct insurance products (primarily cancer, heart, hospital, supplemental disability and accident coverages), and employer-sponsored group benefit products (primarily short-term and long-term group disability, and group term life coverages), primarily to K-12 teachers, administrators and other employees of public schools and their families (collectively, HMEC, the Company or Horace Mann). The Company conducts and manages its business in four reporting segments: (1) Property & Casualty, (2) Life & Retirement, (3) Supplemental & Group Benefits and (4) Corporate & Other. Basis of Presentation The accompanying Consolidated Financial Statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP) and with the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and disclosures normally included in annual financial statements prepared in conformity with GAAP, but are not required for interim reporting purposes, have been omitted. These Consolidated Financial Statements and Notes thereto should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in Part II - Item 8 of the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three and nine months ended September 30, 2023 are not necessarily indicative of the results to be expected for the full year. The accompanying Consolidated Financial Statements and Notes thereto are unaudited and reflect all adjustments (generally consisting only of normal recurring accruals) which are, in the opinion of management, necessary for the fair presentation of the consolidated financial position, results of operations and cash flows for the interim periods. The Company's significant accounting policies are summarized in Part II - Item 8, Note 1 of the Consolidated Financial Statements in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The Company has reclassified the presentation of certain prior period information to conform to the current year's presentation. Consolidation All intercompany transactions and balances between HMEC and its subsidiaries and affiliates have been eliminated. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the reporting date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. The most significant critical accounting estimates include valuation of hard-to-value fixed maturity securities, evaluation of credit loss impairments for fixed maturity securities, evaluation of goodwill and intangible assets for impairment, valuation of annuity and life deferred policy acquisition costs, valuation of liabilities for property and casualty unpaid claims and claim expense reserves, valuation of liabilities for group benefits unpaid claims and claim expense reserves, valuation of future policy benefit reserves and policyholders' account balances and valuation of long-duration insurance contracts under the new accounting guidance in ASU 2018-12. Adoption of New Accounting Standards Accounting for Long-Duration Insurance Contracts In August 2018, the FASB issued ASU 2018-12, Financial Services – Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts, as clarified and amended by (i) ASU 2019-09, Financial Services - Insurance (Topic 944): Effective Date, and (ii) ASU 2020-11, Financial Services - Insurance (Topic 944): Effective Date and Early Application (collectively referred to herein as ASU 2018-12). ASU 2018-12 changed existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts. ASU 2018-12 includes: (1) a requirement to review and, if there is a change, update cash flow assumptions used to measure the liability for future policy benefits (LFPB) at least annually, and to update the discount rate assumption quarterly, (2) a requirement to account for market risk benefits (MRBs) at fair value, (3) simplified amortization for deferred policy acquisition costs (DAC), and (4) enhanced financial statement presentation and disclosures. ASU 2018-12 became effective for the Company for interim and annual periods beginning after December 15, 2022. The Company adopted ASU 2018-12 for LFPB and DAC on a modified retrospective basis such that those balances were adjusted to conform to ASU 2018-12 on January 1, 2021. The Company adopted ASU 2018-12 for MRBs on a full retrospective basis, using hindsight where necessary. For variable annuities, actuarial assumptions (mortality, lapse, and premium payment patterns) used to measure MRBs were unobservable for years prior to 2006 and thus, hindsight was used to determine relevant assumptions for transition purposes. The factors used in applying hindsight included internal experience studies, the historical economic environment, actual performance of the business, and relevant industry information. The following table summarizes the balance of and changes in LFPB on January 1, 2021 due to adoption of ASU 2018-12. The impact of shifts between deferred profit liabilities (DPL) and LFPB for limited-payment products are presented as offsetting line items in the effect of net premiums exceeding gross premiums and the effect of decrease/increase of DPL. ($ in millions) Whole Life Term Life Experience Life Limited Pay Whole Life Supplemental Health (1) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables, end of year December 31, 2020 (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 (1) As of January 1, 2021, the net LFPB for Supplemental Health was $163.5 million for cancer, $31.2 million for accident, $32.0 million for disability and $188.8 million for other supplemental health policies. The following table summarizes the balance of and changes in DAC on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 The following table summarizes the balance of and changes in the net liability position of MRBs on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Balance, end of year December 31, 2020 $ 0.1 Adjustment for the difference between carrying amount and fair value, except for the difference due to instrument-specific credit risk 6.8 Adjustment for cumulative effect of changes in the instrument-specific credit risk at issuance 1.7 Total adjustment for the difference between carrying amount and fair value 8.5 Balance, beginning of year January 1, 2021 8.6 Less: Reinsurance recoverable — Balance, beginning of year January 1, 2021, net of reinsurance $ 8.6 The following table presents the effect of the after-tax transition adjustments on consolidated shareholders' equity due to adoption of ASU 2018: ($ in millions) January 1, 2021 AOCI Retained Earnings Liability for future policy benefits $ (496.3) $ (0.2) Deferred policy acquisition costs 71.1 — Deferred sales inducements — — Market risk benefits (1.3) (5.4) Total $ (426.5) $ (5.6) For LFPB, the net transition adjustment is related to the difference in the discount rate used pre-transition and the discount rate at January 1, 2021. At transition, the Company had several instances, at the cohort level, where net premiums exceeded gross premiums which were recorded as an adjustment to retained earnings. For DAC, the Company removed shadow adjustments previously recorded in accumulated other comprehensive income (loss) (i.e., AOCI) for the impact of net unrealized investment gains (losses) that were included in the pre-ASU 2018-12 expected gross profits amortization calculation as of the transition date. For MRBs, the transition adjustment to AOCI relates to the cumulative effect of changes in the instrument-specific credit risk between contract issue date and transition date. The remaining difference between the fair value and carrying amount of MRBs at transition, excluding the amounts recorded in AOCI, was recorded as an adjustment to retained earnings as of the transition date. While the requirements of ASU 2018-12 represent a significant change from legacy GAAP, the adoption of ASU 2018-12 did not impact cash flows on the Company’s policies, or the underlying economics of the Company’s business. The Company's insurance subsidiaries' risk-based capital amounts and ratios, and regulatory dividends are not impacted as the National Association of Insurance Commissioners (NAIC) rejected ASU 2018-12. See Note 12 for summarization of the effects of adopting ASU 2018-12 on the Company's 2022 Consolidated Financial Statements. Significant Accounting Policies The following significant accounting policy has been added to reflect the Company's adoption of ASU 2018-12 as described above. Liability for Future Policy Benefits LFPB, which is the present value of estimated future policy benefits to be paid to or on behalf of policyholders and certain related expenses less the present value of estimated future net premiums to be collected from policyholders, is accrued as premium revenue is recognized. The liability is estimated using current assumptions that include discount rate, mortality, lapses, and expenses. These current assumptions are based on judgments that consider the Company's historical experience, industry data, and other factors. For traditional, limited-payment and supplemental health contracts, such contracts are grouped into cohorts by contract type and issue year. The liability is adjusted for differences between actual and expected experience. With the exception of the expense assumption, the Company reviews its historical and future cash flow assumptions at least annually and updates the net premium ratio used to calculate the liability each time the assumptions are changed. The Company has elected to use expense assumptions that are locked-in at contract inception and are not subsequently reviewed or updated. At least annually, the Company updates its estimate of cash flows expected over the entire life of a group of contracts using actual historical experience and current future cash flow assumptions. These updated cash flows are used to calculate the revised net premiums and net premium ratio, which are used to derive an updated LFPB as of the beginning of the current reporting period, discounted at the original contract issuance discount rate. This amount is then compared to the carrying amount of the liability as of that same date, before updating cash flow assumptions, to determine the current period change in liability estimate. This current period change in liability estimate is the liability remeasurement gain or loss. The impact of updated cash flow assumptions as well as the periodic liability remeasurement gain or loss is recognized as Benefits, claims and settlement expenses in the Consolidated Statements of Operations and Comprehensive Income (Loss). In subsequent periods, the revised net premiums are used to measure LFPB, subject to future revisions. For traditional and limited-payment contracts, a standard discount rate is used to measure the liabilities that is equivalent to the yield from an A-rated bond. The discount rate assumption is updated quarterly and used to remeasure the liability at the reporting date, with the resulting change reflected in other comprehensive income. For liability cash flows that are projected beyond the duration of market-observable A- rated bond, the Company uses the last market-observable yield level, and uses linear interpolation to determine yield assumptions for durations that do not have market-observable yields. Deferred Profit Liability For limited-payment products, gross premiums received in excess of net premiums are deferred at initial recognition as a DPL. Gross premiums are measured using assumptions consistent with those used in the measurement of LFPB, including discount rate, mortality, lapses, and expenses. DPL is amortized and recognized as premium revenue in proportion to insurance in force for life insurance contracts and expected future benefit payments for annuity contracts. Interest is accreted on the balance of DPL using the discount rate determined at contract issuance. The Company reviews and updates its estimates of cash flows for DPL at the same time as the estimates of cash flows for the liability for future policy benefits. When cash flows are updated, the updated estimates are used to recalculate DPL at contract issuance. The recalculated DPL as of the beginning of the current reporting period is compared to the carrying amount of DPL as of the beginning of the current reporting period, and any difference is recognized as either a charge or credit to Net premiums and contract charges earned presented in the Consolidated Statements of Operations and Comprehensive Income (Loss). DPL is recognized as a component of the Investment contract and future policy benefit reserves presented in the Consolidated Balance Sheets. Market Risk Benefits MRBs are contracts or contract features that both provide protection to the contract holder from other-than-nominal capital market risk and expose the Company to other-than-nominal capital market risk. MRBs include guaranteed minimum death benefits on variable annuity products. MRBs are measured at fair value using a non-option-based valuation model based on current net amounts at risk, market data, Company experience, and other factors. Changes in fair value of MRBs are recognized as a component of Benefits, claims and settlement expenses presented in the Consolidated Statements of Operations and Comprehensive Income (Loss) each period with the exception of the portion of the change in fair value due to a change in the instrument-specific credit risk, which is recognized in other comprehensive income. MRBs are recognized as a component of Policyholders' account balances reserves presented in the Consolidated Balance Sheets. Deferred Policy Acquisition Costs and Deferred Sales Inducements DAC are costs that are incremental and directly related to the successful acquisition of new or renewal insurance contracts. Such costs include the incremental direct costs of contract acquisition, such as sales commissions; the portion of employees' total compensation and payroll-related fringe benefits related directly to time spent performing acquisition activities, such as underwriting, issuing, and processing policies for contracts that have actually been acquired; and other costs related directly to acquisition activities that would not have been incurred if the contract had not been acquired. Contracts are grouped by contract type and issue year into cohorts consistent with the grouping used in estimating the associated liability. DAC is amortized on a constant level basis for the grouped contracts over the expected term of the related contracts to approximate straight-line amortization. For all life insurance products, the constant level basis used is face amount in force. For all deferred annuity products, the constant level basis used is the deposit amount in force. The constant level bases used for amortization are projected using mortality and lapse assumptions that are based on the Company's experience, industry data, and other factors and are consistent with those used for LFPB. If those projected assumptions change in future periods, they will be reflected in the cohort level amortization basis at that time. Unexpected terminations, due to mortality and lapse experience higher than expected, are recognized in the current period as a reduction of the capitalized balances. Amortization of DAC is recognized as DAC amortization expense presented in the Consolidated Statements of Operations and Comprehensive Income (Loss). The DAC balance is reduced for actual experience in excess of expected experience. Changes in future estimates are recognized prospectively over the remaining expected contract term. Deferred sales inducements (DSIs) are contract features that are intended to attract new customers or to persuade existing customers to keep their current policy. DSIs may be deferred if the Company can demonstrate that the deferred sales inducement amounts are both incremental to the amounts Company credits on similar contracts without sales inducements and the amounts are higher than the contract's expected ongoing crediting rates for periods after the inducement. Day-one bonuses and persistency bonuses generally meet the criteria to be deferred. DSIs are amortized using the same methodology and assumptions used to amortize DAC.

Investments

Investments	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Investments	Investments Net Investment Income The components of net investment income for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities $ 68.7 $ 63.9 $ 201.6 $ 184.5 Equity securities 1.3 1.8 4.7 7.1 Limited partnership interests 20.5 5.1 40.6 31.3 Short-term and other investments 4.6 2.8 11.6 8.2 Investment expenses (3.3) (2.7) (9.5) (7.8) Net investment income - investment portfolio 91.8 70.9 249.0 223.3 Investment income - deposit asset on reinsurance 27.1 26.7 78.8 77.4 Total net investment income $ 118.9 $ 97.6 $ 327.8 $ 300.7 Net Investment Losses Net investment gains (losses) for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities $ (3.4) $ (10.7) $ (20.5) $ (15.9) Equity securities (2.1) (4.4) (6.6) (32.5) Short-term investments and other (2.9) 2.3 (2.6) 4.6 Net investment losses $ (8.4) $ (12.8) $ (29.7) $ (43.8) The Company, from time to time, sells fixed maturity securities subsequent to the reporting date but prior to the issuance of the financial statements that were in an unrealized loss position but no credit loss was recognized and there was no intent to sell the securities at the reporting date. Such sales are due to issuer-specific events occurring subsequent to the reporting date that result in a change in the Company's intent to sell a fixed maturity security. The types of events that may result in a sale include significant changes in the economic facts and circumstances related to the invested asset, significant unforeseen changes in liquidity needs, or changes in the Company's investment strategy. Net Investment Losses by Transaction Type The breakdown of net investment gains (losses) by transaction type for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Credit loss impairments $ — $ (0.6) $ (0.5) $ (2.8) Intent-to-sell impairments (0.6) (6.2) (6.7) (7.6) Total impairments (0.6) (6.8) (7.2) (10.4) Sales and other, net (3.5) (3.9) (25.2) (3.9) Change in fair value - equity securities (1.4) (4.4) 5.3 (34.1) Change in fair value and gains (losses) realized on settlements - derivatives (2.9) 2.3 (2.6) 4.6 Net investment losses $ (8.4) $ (12.8) $ (29.7) $ (43.8) Allowance for Credit Loss Impairments on Fixed Maturity Securities The following table presents changes in the allowance for credit loss impairments on fixed maturity securities classified as available for sale for the category of other asset-backed securities (no other categories of fixed maturity securities have an allowance for credit loss impairments): ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Beginning balance $ 1.2 $ 9.5 $ 1.2 $ 7.7 Credit losses on fixed maturity securities for which credit losses were not previously reported — — 0.5 — Net increase related to credit losses previously reported — 0.6 — 2.8 Reduction of credit allowances related to sales — — — — Write-offs — — (0.5) (0.4) Ending balance $ 1.2 $ 10.1 $ 1.2 $ 10.1 Fixed Maturity Securities The Company's investment portfolio is comprised primarily of fixed maturity securities. Amortized cost, net, gross unrealized investment gains (losses) and fair values of all fixed maturity securities in the portfolio were as follows: ($ in millions) Amortized Gross Unrealized Gross Unrealized Fair September 30, 2023 Fixed maturity securities U.S. Government and federally sponsored agency obligations: (1) Mortgage-backed securities $ 687.2 $ 0.5 $ 97.2 $ 590.5 Other, including U.S. Treasury securities 449.6 0.3 85.0 364.9 Municipal bonds 1,334.1 11.2 159.8 1,185.5 Foreign government bonds 26.1 — 1.6 24.5 Corporate bonds 1,982.7 7.2 304.6 1,685.3 Other asset-backed securities 1,161.9 3.6 54.6 1,110.9 Totals $ 5,641.6 $ 22.8 $ 702.8 $ 4,961.6 December 31, 2022 Fixed maturity securities U.S. Government and federally sponsored agency obligations: (1) Mortgage-backed securities $ 638.2 $ 1.3 $ 69.1 $ 570.4 Other, including U.S. Treasury securities 410.0 0.5 67.8 342.7 Municipal bonds 1,380.9 16.9 128.1 1,269.7 Foreign government bonds 35.1 — 1.6 33.5 Corporate bonds 2,161.2 12.7 272.2 1,901.7 Other asset-backed securities 1,131.5 3.6 68.1 1,067.0 Totals $ 5,756.9 $ 35.0 $ 606.9 $ 5,185.0 (1) Fair value includes securities issued by Federal National Mortgage Association (FNMA) of $323.6 million and $330.8 million; Federal Home Loan Mortgage Corporation (FHLMC) of $305.8 million and $273.3 million; and Government National Mortgage Association (GNMA) of $78.4 million and $86.2 million as of September 30, 2023 and December 31, 2022, respectively. The following table presents the fair value and gross unrealized losses for fixed maturity securities in an unrealized loss position as of September 30, 2023 and December 31, 2022, respectively. The Company views the decrease in fair value of all of the fixed maturity securities with unrealized losses as of September 30, 2023 as due to factors other than a credit loss. As of September 30, 2023, the Company has not made the decision to sell and it is not more likely than not the Company will be required to sell the fixed maturity securities with unrealized losses before a recovery of the amortized cost basis. In reaching our conclusion that an allowance for credit is unnecessary, we considered the factors described in the evaluation of credit loss impairments for fixed maturity securities critical accounting estimate in our Annual Report on Form 10-K. In the current three and nine months ended September 30, 2023, the performance of fixed maturity securities has been impacted by the change in interest rates, specifically interest rates being at relatively high levels compared to interest rates at the time of acquisition of the securities. Following significant increases in interest rates throughout 2022, driven mostly by increases in risk-free rates, rates stabilized during the first half 2023, but increased in the three months ended September 30, 2023. In consideration of the factors, we expect to receive cash flows sufficient to recover the entire amortized cost basis of the securities in the following table. ($ in millions) 12 Months or Less More than 12 Months Total Fair Value Gross Fair Value Gross Fair Value Gross September 30, 2023 Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 137.1 $ 5.3 $ 438.2 $ 91.9 $ 575.3 $ 97.2 Other 91.9 3.7 268.5 81.3 360.4 85.0 Municipal bonds 331.1 13.7 729.9 146.1 1,061.0 159.8 Foreign government bonds 1.4 0.1 23.1 1.5 24.5 1.6 Corporate bonds 204.9 18.6 1,120.8 286.0 1,325.7 304.6 Other asset-backed securities 135.1 2.6 804.4 52.0 939.5 54.6 Total $ 901.5 $ 44.0 $ 3,384.9 $ 658.8 $ 4,286.4 $ 702.8 Number of positions with a gross unrealized loss 669 2,474 3,143 Fair value as a percentage of total fixed maturity securities at fair value 18.2 % 68.2 % 86.4 % December 31, 2022 Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 458.3 $ 54.4 $ 52.6 $ 14.7 $ 510.9 $ 69.1 Other 242.7 34.1 65.8 33.7 308.5 67.8 Municipal bonds 911.6 113.7 42.2 14.4 953.8 128.1 Foreign government bonds 32.7 1.4 0.4 0.2 33.1 1.6 Corporate bonds 1,345.0 221.1 148.9 51.1 1,493.9 272.2 Other asset-backed securities 543.4 37.1 424.3 31.0 967.7 68.1 Total $ 3,533.7 $ 461.8 $ 734.2 $ 145.1 $ 4,267.9 $ 606.9 Number of positions with a gross unrealized loss 2,515 587 3,102 Fair value as a percentage of total fixed maturity securities at fair value 68.2 % 14.2 % 82.4 % With regards to fixed maturity securities that had gross unrealized losses more than 12 months, the number of positions by their respective credit ratings were as follows: Number of Positions September 30, 2023 December 31, 2022 Credit Rating AAA 241 67 AA 1,030 217 A 434 94 BBB 474 93 BB 159 68 B 64 31 CCC or lower 7 2 Not rated 65 15 Totals: 2,474 587 Fixed maturity securities with an investment grade rating represented 96.8% of the gross unrealized losses as of September 30, 2023. Maturities of Fixed Maturity Securities The following table presents the distribution of the Company’s fixed maturity securities portfolio by estimated expected maturity. Estimated expected maturities differ from contractual maturities, reflecting assumptions regarding borrowers' utilization of the right to call or prepay obligations with or without call or prepayment penalties. For structured securities, estimated expected maturities consider broker-dealer survey prepayment assumptions and are verified for consistency with the interest rate and economic environments. ($ in millions) Percent of Total Fair Value September 30, 2023 September 30, 2023 December 31, 2022 Fair Amortized Estimated expected maturity: Due in 1 year or less 5.6 % 4.4 % $ 278.3 $ 287.8 Due after 1 year through 5 years 27.1 26.3 1,343.4 1,420.7 Due after 5 years through 10 years 27.4 27.9 1,357.3 1,480.7 Due after 10 years through 20 years 23.9 25.0 1,187.1 1,417.8 Due after 20 years 16.0 16.4 795.5 1,034.6 Total 100.0 % 100.0 % $ 4,961.6 $ 5,641.6 Average option-adjusted duration, in years 6.1 6.4 Sales of Fixed Maturity and Equity Securities Proceeds received from sales of fixed maturity and equity securities, each determined using the specific identification method, and gross gains and gross losses realized as a result of those sales for each period were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities Proceeds received $ 135.2 $ 164.6 $ 341.4 $ 529.9 Gross gains realized 1.4 1.1 2.0 4.7 Gross losses realized (2.8) (5.0) (13.9) (10.2) Equity securities Proceeds received $ 6.8 $ 0.2 $ 16.6 $ 6.0 Gross gains realized — — — 1.7 Gross losses realized (0.5) — (11.8) (0.1) Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities The following table reconciles net unrealized investment gains (losses) on fixed maturity securities, net of tax, included in AOCI: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net unrealized investment gains (losses) Beginning of period $ (393.7) $ (281.8) $ (449.6) $ 347.1 Change in net unrealized investment gains (143.7) (223.4) (101.3) (856.5) Reclassification of net investment losses 2.7 8.4 16.2 12.6 End of period $ (534.7) $ (496.8) $ (534.7) $ (496.8) Limited Partnership Interests Investments in limited partnership interests are accounted for using the equity method of accounting (EMA) and include interests in commercial mortgage loan funds, real estate equity funds, private equity funds, infrastructure equity funds, infrastructure debt funds and other funds. Principal factors influencing carrying amount appreciation or depreciation include operating performance, comparable public company earnings multiples, capitalization rates and the economic environment. The carrying amounts of EMA limited partnership interests were as follows: ($ in millions) September 30, 2023 December 31, 2022 Commercial mortgage loan funds $ 671.6 $ 593.6 Real estate equity funds 111.2 71.3 Private equity funds 83.9 76.3 Infrastructure equity funds 77.9 72.0 Infrastructure debt funds 63.4 60.0 Other funds (1) 134.6 110.5 Total $ 1,142.6 $ 983.7 (1) Other funds consist primarily of limited partnership interests in corporate mezzanine, venture capital and private credit funds. Offsetting of Assets and Liabilities The Company's derivatives are subject to enforceable master netting arrangements. Collateral support agreements associated with each master netting arrangement provides that the Company will receive or pledge financial collateral in the event minimum thresholds have been reached. The Company’s reverse repurchase agreements are also subject to enforceable master netting arrangements but there was no offsetting in their presentation in the Company’s Consolidated Balance Sheets. Information regarding the Company's derivatives is contained in Part II - Item 8, Note 5 in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The following table presents instruments that were subject to a master netting arrangement for the Company. ($ in millions) Gross Net Amounts Gross Amounts Not Offset Gross Financial Cash Net September 30, 2023 Asset derivatives: Free-standing derivatives $ 9.3 $ — $ 9.3 $ — $ 9.2 $ 0.1 December 31, 2022 Asset derivatives: Free-standing derivatives $ 6.8 $ — $ 6.8 $ — $ 5.9 $ 0.9 Reverse Repurchase Agreements In connection with reverse repurchase agreements, the Company transfers primarily U.S. government, government agency and corporate securities and receives cash. For reverse repurchase agreements, the Company receives cash in an amount equal to at least 95% of the fair value of the securities transferred, and the agreements with third parties contain contractual provisions to allow for additional collateral to be obtained when necessary. The Company accounts for reverse repurchase agreements as secured borrowings. The securities transferred under reverse repurchase agreements are included in Fixed maturity securities with the obligation to repurchase those securities reported in Other liabilities on the Company's Consolidated Balance Sheets. The fair value of the securities transferred wa s $0.4 million as of September 30, 2023 and $73.3 million as of December 31, 2022. The obligation for securities sold under reverse repurchase agreements was a net amount of $0.2 million as of September 30, 2023 and $70.2 million December 31, 2022. Deposits As of September 30, 2023 and December 31, 2022, fixed maturity securities with a fair value of $28.6 million were on deposit with governmental agencies as required by law in various states for which the insurance subsidiaries of HMEC conduct business. In addition, as of September 30, 2023 and December 31, 2022, fixed maturity securities with a fair value of $971.0 million and $860.4 million, respectively, were on deposit with the Federal Home Loan Bank of Chicago (FHLB) as collateral for amounts subject to funding agreements, advances and borrowings which were equal to $904.5 million as of September 30, 2023 and $792.5 million as of December 31, 2022. The deposited securities are reported as Fixed maturity securities on the Company’s Consolidated Balance Sheets.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company is required to disclose estimated fair values for certain financial and nonfinancial assets and liabilities. Fair values of the Company’s insurance contracts other than annuity contracts (which are investment contracts) and EMA limited partnership interests are not required to be disclosed. However, the estimated fair values of liabilities under all insurance contracts are taken into consideration in the Company’s overall management of interest rate risk through appropriate matching of investment maturities with amounts due under insurance contracts. Information regarding the three-level fair value hierarchy presented below and the valuation methodologies utilized by the Company to estimate fair values at each reporting date is included in Part II - Item 8, Note 4 of the Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. Financial Instruments Measured and Carried at Fair Value on a Recurring Basis The following table presents the Company's fair value hierarchy for financial assets and financial liabilities measured and carried at fair value on a recurring basis. During the nine months ended September 30, 2023 and 2022, there were no transfers between Level 1 and Level 2. As of September 30, 2023, Level 3 invested assets comprised 9.2% of the Company’s total investment portfolio at fair value. ($ in millions) Carrying Fair Fair Value Measurements at Level 1 Level 2 Level 3 September 30, 2023 Financial Assets Investments Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 590.5 $ 590.5 $ — $ 588.0 $ 2.5 Other, including U.S. Treasury securities 364.8 364.8 44.2 320.6 — Municipal bonds 1,185.6 1,185.6 — 1,115.9 69.7 Foreign government bonds 24.5 24.5 — 24.5 — Corporate bonds 1,685.3 1,685.3 10.0 1,370.1 305.2 Other asset-backed securities 1,110.9 1,110.9 — 1,012.9 98.0 Total fixed maturity securities 4,961.6 4,961.6 54.2 4,432.0 475.4 Equity securities 77.0 77.0 17.2 57.6 2.2 Short-term investments 113.5 113.5 113.5 — — Other investments 43.1 43.1 — 43.1 — Totals $ 5,195.2 $ 5,195.2 $ 184.9 $ 4,532.7 $ 477.6 Separate Account variable annuity assets (1) $ 2,974.0 $ 2,974.0 $ 2,974.0 $ — $ — Financial Liabilities (2) $ 80.3 $ 80.3 $ — $ 2.0 $ 78.3 December 31, 2022 Financial Assets Investments Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 570.4 $ 570.4 $ — $ 567.8 $ 2.6 Other, including U.S. Treasury securities 342.6 342.6 24.6 318.0 — Municipal bonds 1,269.7 1,269.7 — 1,215.3 54.4 Foreign government bonds 33.6 33.6 — 33.6 — Corporate bonds 1,901.7 1,901.7 12.2 1,628.2 261.3 Other asset-backed securities 1,067.0 1,067.0 — 962.0 105.0 Total fixed maturity securities 5,185.0 5,185.0 36.8 4,724.9 423.3 Equity securities 99.6 99.6 23.3 74.3 2.0 Short-term investments 109.4 109.4 109.4 — — Other investments 38.6 38.6 — 38.6 — Totals $ 5,432.6 $ 5,432.6 $ 169.5 $ 4,837.8 $ 425.3 Separate Account (variable annuity) assets (1) $ 2,792.3 $ 2,792.3 $ 2,792.3 $ — $ — Financial Liabilities (2) $ 92.5 $ 92.5 $ — $ 1.2 $ 91.3 (1) Separate Account variable annuity assets represent contractholder funds invested in various actively traded mutual funds that have daily quoted net asset values that are readily determinable for identical assets that the Company can access. Separate Account variable annuity liabilities are equal to the estimated fair value of the Separate Account variable annuity assets. (2) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. Changes in Level 3 Fair Value Measurements The reconciliation for all financial assets and financial liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) were as follows: ($ in millions) Financial Assets Financial Liabilities (1) Municipal Corporate Mortgage-Backed and Other Asset- Backed Securities (2) Total Equity Total Beginning balance, July 1, 2023 $ 63.9 $ 311.5 $ 101.4 $ 476.8 $ 2.0 $ 478.8 $ 83.6 Transfers into Level 3 (3) — — — — — — — Transfers out of Level 3 (3) — (3.7) — (3.7) — (3.7) — Total gains or losses Net gains/losses included in net income — — — — 0.2 0.2 (3.2) Net unrealized gains/losses included in OCI 5.9 (12.8) 2.0 (4.9) — (4.9) 0.4 Purchases — 17.5 1.7 19.2 — 19.2 — Issuances — — — — — — 2.0 Sales — — — — — — — Settlements — — — — — — — Paydowns, maturities and distributions (0.1) (7.3) (4.6) (12.0) — (12.0) (4.5) Ending balance, September 30, 2023 $ 69.7 $ 305.2 $ 100.5 $ 475.4 $ 2.2 $ 477.6 $ 78.3 Beginning balance, January 1, 2023 $ 54.4 $ 261.3 $ 107.6 $ 423.3 $ 2.0 $ 425.3 $ 91.3 Transfers into Level 3 (3) — 36.1 0.8 36.9 — 36.9 — Transfers out of Level 3 (3) — (3.7) — (3.7) — (3.7) — Total gains or losses Net gains/losses included in net income — — — — 0.2 0.2 (5.6) Net unrealized gains/losses included in OCI 6.5 (14.1) 0.9 (6.7) — (6.7) (0.3) Purchases 9.5 43.2 1.9 54.6 — 54.6 — Issuances — — — — — 6.3 Sales — (7.7) (7.7) — (7.7) — Settlements — — — — — — Paydowns, maturities and distributions (0.7) (9.9) (10.7) (21.3) — (21.3) (13.4) Ending balance, September 30, 2023 $ 69.7 $ 305.2 $ 100.5 $ 475.4 $ 2.2 $ 477.6 $ 78.3 (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. (2) Includes U.S. Government and federally sponsored agency obligations for mortgage-backed securities and other asset-backed securities. (3) Transfers into and out of Level 3 during the three and nine months ended September 30, 2023 and 2022 were related to changes in the primary pricing source and changes in observability of external information used in determining fair value. The Company's policy is to recognize transfers into and out of the levels as having occurred at the end of the reporting period in which the transfers were determined. ($ in millions) Financial Assets Financial (1) Municipal Corporate Mortgage-Backed and Other Asset- Backed Securities (2) Total Equity Total Beginning balance, July 1, 2022 $ 51.0 $ 270.5 $ 97.1 $ 418.6 $ 1.4 $ 420.0 $ 97.8 Transfers into Level 3 (3) — 20.5 12.2 32.7 0.8 33.5 — Transfers out of Level 3 (3) — (34.8) — (34.8) — (34.8) — Total gains or losses Net gains/losses included in net income — — (0.8) (0.8) (0.1) (0.9) — Net investment (gains) losses included in net income related to financial liabilities — — — — — — (6.3) Net unrealized gains/losses included in OCI (5.3) (7.4) (3.9) (16.6) — (16.6) — Purchases 0.2 8.4 7.9 16.5 — 16.5 — Issuances — — — — — — 2.7 Sales — — — — — — — Settlements — — — — — — — Paydowns, maturities and distributions 7.4 (17.4) (5.3) (15.3) (0.1) (15.4) (1.4) Ending balance, September 30, 2022 $ 53.3 $ 239.8 $ 107.2 $ 400.3 $ 2.0 $ 402.3 $ 92.8 Beginning balance, January 1, 2022 $ 60.8 $ 210.3 $ 98.9 $ 370.0 $ 1.4 $ 371.4 $ 111.4 Transfers into Level 3 (3) — 144.0 34.5 178.5 0.8 179.3 — Transfers out of Level 3 (3) (3.2) (34.9) (4.8) (42.9) — (42.9) — Total gains or losses Net gains/losses included in net income — — (3.1) (3.1) (0.1) (3.2) — Net investment (gains) losses included in net income related to financial liabilities — — — — — — (13.9) Net unrealized gains/losses included in OCI (11.6) (18.7) (11.3) (41.6) — (41.6) (2.4) Purchases 0.2 13.3 7.9 21.4 — 21.4 — Issuances — — — — — — 4.8 Sales — — (2.1) (2.1) — (2.1) — Settlements — — — — — — — Paydowns, maturities and distributions 7.1 (74.2) (12.8) (79.9) (0.1) (80.0) (7.1) Ending balance, September 30, 2022 $ 53.3 $ 239.8 $ 107.2 $ 400.3 $ 2.0 $ 402.3 $ 92.8 (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. (2) Includes U.S. Government and federally sponsored agency obligations for mortgage-backed securities and other asset-backed securities. (3) Transfers into and out of Level 3 during the three and nine months ended September 30, 2022 were attributable to changes in the availability of observable market information for individual fixed maturity securities. The Company's policy is to recognize transfers into and out of the levels as having occurred at the end of the reporting period in which the transfers were determined. For the three and nine months ended September 30, 2023, the Company had $0.2 of net gains with respect to Level 3 financial assets. For the three and nine months ended September 30, 2022, the Company had net losses of $0.9 million and $3.2 million, respectively, that were included in net income with respect to Level 3 financial assets. For the three and nine months ended September 30, 2023, the Company had net gains of $3.2 million and $5.6 million, respectively, that were included in net income and were attributable to changes in the fair value of Level 3 financial liabilities. For the three and nine months ended September 30, 2022, the Company had net gains of $6.3 million and $13.9 million, respectively, that were included in net income and were attributable to changes in the fair value of Level 3 financial liabilities. Level 3 Assets and Liabilities by Price Source The table below presents the balances of Level 3 assets and liabilities measured at fair value with their corresponding pricing sources (in millions, 2022 information recast for the adoption of LDTI): ($ in millions) Total Internal External September 30, 2023 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.5 $ — $ 2.5 Municipal bonds 69.7 — 69.7 Corporate bonds 305.2 47.4 257.8 Other asset-backed securities 98.0 — 98.0 Total fixed maturity securities 475.4 47.4 428.0 Equity securities 2.2 — 2.2 Totals $ 477.6 $ 47.4 $ 430.2 Financial Liabilities (1) $ 78.3 $ 78.3 $ — December 31, 2022 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.6 $ — $ 2.6 Municipal bonds 54.4 — 54.4 Corporate bonds 261.3 9.5 251.8 Other asset-backed securities 105.0 — 105.0 Total fixed maturity securities 423.3 9.5 413.8 Equity securities 2.0 — 2.0 Totals $ 425.3 $ 9.5 $ 415.8 Financial Liabilities (1) $ 91.3 $ 91.3 $ — (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. External pricing sources for securities represent prices from prior transactions or unadjusted third-party pricing information where pricing inputs are not readily available. Quantitative Information about Level 3 Fair Value Measurements The following table provides quantitative information about the significant unobservable inputs for recurring fair value measurements categorized with Level 3. ($ in millions) Fair Value as of September 30, 2023 Valuation Technique(s) Unobservable Inputs Range (Weighted Average) and Single Point Best Estimate (1) Financial Assets Corporate bonds $ 47.4 discounted cash flow yield 8.3% - 17.4% Financial Liabilities Derivatives embedded in fixed indexed annuity products $ 82.8 discounted cash flow lapse rate 5.4% mortality multiplier (2) 67.8% option budget 0.9% - 3.8% non-performance adjustment (3) 5.0% Net MRBs $ (4.5) discounted cash flow lapse rate 5.9% mortality multiplier (2) 67.8% (1) When a range of unobservable inputs is not readily available, the Company uses a single point best estimate. (2) Mortality multiplier is applied to the Annuity 2000 table. (3) Determined as a percentage of the risk-free rate. The valuation techniques and significant unobservable inputs used in the fair value measurement for financial assets and financial liabilities classified as Level 3 are subject to the control processes as described in Part II - Item 8, Note 4 in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. Generally, valuation techniques for fixed maturity securities include spread pricing, matrix pricing and discounted cash flow methodologies; include inputs such as quoted prices for identical or similar securities that are less liquid; and are based on lower levels of trading activity than securities classified as Level 2. Financial Instruments Not Carried at Fair Value The Company has various other financial assets and financial liabilities used in the normal course of business that are not carried at fair value, but for which fair value disclosure is required. These financial assets and financial liabilities are further described in Part II - Item 8, Note 4 in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The following table presents the carrying amount, fair value and fair value hierarchy of these financial assets and financial liabilities. ($ in millions) Carrying Fair Fair Value Measurements at Level 1 Level 2 Level 3 September 30, 2023 Financial Assets Other investments $ 181.6 $ 185.0 $ — $ — $ 185.0 Deposit asset on reinsurance 2,515.7 2,070.3 — — 2,070.3 Financial Liabilities Investment contract and future policy benefit reserves, fixed annuity contracts 4,920.8 4,821.1 — — 4,821.1 Investment contract and future policy benefit reserves, account values on life contracts 116.8 112.8 — — 112.8 Other policyholder funds 915.9 915.9 — 904.9 11.0 Reverse repurchase agreements 0.2 0.4 — 0.4 — Short-term debt — — — — — Long-term debt 546.1 541.1 — 541.1 — December 31, 2022 Financial Assets Other investments $ 167.4 $ 170.9 $ — $ — $ 170.9 Deposit asset on reinsurance 2,516.6 2,207.2 — — 2,207.2 Financial Liabilities Investment contract and future policy benefit reserves, fixed annuity contracts 4,988.5 4,901.3 — — 4,901.3 Investment contract and future policy benefit reserves, account values on life contracts 111.9 107.7 — — 107.7 Other policyholder funds 863.0 863.0 — 810.7 52.3 Reverse repurchase agreements 70.2 73.3 — 73.3 — Short-term debt 249.0 249.0 — — 249.0 Long-term debt 249.0 240.5 — 240.5 —

Short-Duration Insurance Contra

Short-Duration Insurance Contracts	9 Months Ended
	Sep. 30, 2023
Insurance Loss Reserves [Abstract]
Short-Duration Insurance Contracts	Short-Duration Insurance Contracts Property & Casualty Unpaid Claims and Claim Expense Reserves The following table is a summary reconciliation of the beginning and ending Property & Casualty unpaid claims and claim expense reserves for the periods indicated. The table presents reserves on both a gross and net (after reinsurance) basis. The total net Property & Casualty insurance claims and claim expense incurred amounts are reflected in the Consolidated Statements of Operations and Comprehensive Income (Loss). The end of period gross reserves (before reinsurance balances and reinsurance recoverable balances) are reflected on a gross basis in the Consolidated Balance Sheets. ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Property & Casualty Beginning gross reserves $ 415.8 $ 378.4 $ 388.7 $ 362.4 Less: reinsurance recoverables 104.3 109.8 100.8 110.3 Net reserves, beginning of period (1) 311.5 268.6 287.9 252.1 Incurred claims and claim expenses: Claims occurring in the current period 149.2 120.3 430.0 372.8 Increase (decrease) in estimated reserves for claims occurring in prior periods (2) — 2.0 — 8.0 Total claims and claim expenses incurred 149.2 122.3 430.0 380.8 Claims and claim expense payments for claims occurring during: Current period 115.9 102.8 246.7 221.1 Prior periods 30.9 29.7 157.3 153.4 Total claims and claim expense payments 146.8 132.5 404.0 374.5 Net reserves, end of period (1) 313.9 258.4 313.9 258.4 Plus: reinsurance recoverables 105.4 109.0 105.4 109.0 Ending gross reserves $ 419.3 $ 367.4 $ 419.3 $ 367.4 (1) Reserves net of expected reinsurance recoverables. (2) Shows the amounts by which the Company increased (decreased) its reserves in each of the periods indicated for claims occurring in previous periods to reflect subsequent information on such claims and changes in their projected final settlement costs - also known as prior years' reserve development. There was no prior years' reserve development for Property & Casualty claims for the three and nine months ended September 30, 2023. The Company recognized $2.0 and $8.0 million of net unfavorable prior years' reserve development for the three and nine months ended September 30, 2022. The unfavorable development for the nine months ended September 30, 2022 was the result of unfavorable loss trends in auto offset by favorable loss trends in homeowners loss emergence for accident years 2021 and prior. Group Benefits Unpaid Claims and Claim Expense Reserves The following table is a summary reconciliation of the beginning and ending Group Benefits unpaid claims and claim expense reserves for the periods indicated. The table presents reserves on both a gross and net (after reinsurance). The total net Group Benefits insurance claims and claim expense incurred amounts are reflected in the Consolidated Statements of Operations and Comprehensive Income (Loss). The end of period gross reserves (before reinsurance balances and reinsurance recoverable balances) are reflected on a gross basis in the Consolidated Balance Sheets. ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Group Benefits Beginning gross reserves $ 121.9 $ 130.2 $ 121.6 $ 125.4 Less: reinsurance recoverables 28.2 29.6 27.9 28.6 Net reserves, beginning of period (1) 93.7 100.6 93.7 96.8 Incurred claims and claim expenses: Claims occurring in the current period 20.0 20.7 61.0 65.6 Increase (decrease) in estimated reserves for claims occurring in prior periods (2) (7.6) (9.7) (15.5) (11.7) Total claims and claim expenses incurred 12.4 11.0 45.5 53.9 Claims and claim expense payments for claims occurring during: Current period 12.2 10.4 25.3 26.2 Prior periods 4.3 5.4 24.3 28.7 Total claims and claim expense payments 16.5 15.8 49.6 54.9 Net reserves, end of period (1) 89.6 95.8 89.6 95.8 Plus: reinsurance recoverables 27.5 28.0 27.5 28.0 Ending gross reserves $ 117.1 $ 123.8 $ 117.1 $ 123.8 (1) Reserves net of expected reinsurance recoverables. (2) Shows the amounts by which the Company increased (decreased) its reserves in each of the periods indicated for claims occurring in previous periods to reflect subsequent information on such claims and changes in their projected final settlement costs - also known as prior years' reserve development. Favorable prior years' reserve development for Group Benefits wa s $15.5 million and $11.7 million f or the nine months ended September 30, 2023 and 2022, respectively. The favorable development for the nine months ended September 30, 2023 was primarily the result of favorable loss trends in specialty health and group life and disability for loss years 2022 and prior. The favorable development for the nine months ended September 30, 2022 was primarily the result of favorable loss trends in specialty health for loss years 2021 and prior. Reconciliation of Property & Casualty and Group Benefits Unpaid Claims and Claim Expense Reserves to the Consolidated Balance Sheets ($ in millions) As of September 30, 2023 As of December 31, 2022 Ending gross reserves Property & Casualty $ 419.3 $ 388.7 Group Benefits 117.1 121.6 Total short-duration insurance contracts 536.4 510.3 Other than short-duration (1) 50.2 53.7 Total unpaid claims and claims expenses $ 586.6 $ 564.0 (1)

Long-Duration Insurance Contrac

Long-Duration Insurance Contracts	9 Months Ended
	Sep. 30, 2023
Insurance [Abstract]
Long-Duration Insurance Contracts	Long-Duration Insurance Contracts Liability for Future Policy Benefits As of and for the three and nine months ended September 30, 2023 and 2022, the Company updated the net premium ratio when updating for actual historical experience for the quarter; future cash flow assumptions were reviewed but not changed. The following tables summarize balances and changes in LFPB for traditional and limited-payment contracts. The balances of and changes in LFPB as of and for the three months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at July 1, 2023 $ 217.5 $ 240.3 $ 68.1 $ 31.7 $ 172.0 $ — July 1, 2023 balance at original discount rate 247.0 265.1 64.7 34.2 207.5 — Effect of: — — — — — — Change in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (1.2) 0.7 (0.3) — — Adjusted balance at July 1, 2023 247.8 263.9 65.4 33.9 207.5 — Issuances (3) 2.2 6.0 — 1.2 3.7 0.8 Interest accruals (4) 1.8 2.6 1.0 0.4 1.5 — Net premiums collected (5) (5.2) (6.3) (1.7) (1.5) (5.6) (0.8) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at July 1, 2023 507.1 360.6 871.5 85.3 426.6 103.6 July 1, 2023 balance at original discount rate 588.7 406.4 799.6 102.6 525.8 113.0 Effect of: Changes in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (0.3) 1.1 (0.3) (0.2) — Adjusted balance at July 1, 2023 589.5 406.1 800.7 102.3 525.6 113.0 Issuances 2.2 6.4 — 1.2 3.7 0.7 Interest accruals 4.8 3.9 11.7 1.0 3.6 1.1 Benefit payments (6) (5.3) (5.0) (16.0) (0.2) (15.7) (2.9) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the nine months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at January 1, 2023 $ 215.1 $ 234.7 $ 68.3 $ 29.7 $ 167.4 $ — January 1, 2023 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of: — — — — — — Change in cash flow assumptions — (5.3) — — — — Actual variances from expected experience 2.6 (2.2) 1.4 1.0 0.3 — Adjusted balance at January 1, 2023 248.5 257.9 66.9 33.4 205.4 — Issuances (3) 7.6 19.0 — 3.3 13.6 4.2 Interest accruals (4) 5.4 7.8 2.8 1.0 4.5 — Net premiums collected (5) (14.9) (18.5) (5.0) (3.7) (16.4) (4.2) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at January 1, 2023 493.6 347.0 867.5 79.4 431.7 103.3 January 1, 2023 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of: Changes in cash flow assumptions — (5.6) — — — — Actual variances from expected experience 2.7 0.4 2.0 1.2 (0.1) (0.5) Adjusted balance at January 1, 2023 584.6 395.8 807.2 99.8 537.0 112.9 Issuances 7.7 19.6 — 3.3 13.6 4.7 Interest accruals 14.2 11.4 35.5 2.9 10.8 3.3 Benefit payments (6) (15.3) (15.4) (46.3) (1.7) (44.2) (9.0) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the year ended December 31, 2022 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present Value of Expected Net Premiums Balance at January 1, 2022 (7) $ 260.7 $ 264.4 $ 74.6 $ 29.7 $ 226.7 $ — January 1, 2022 balance at original discount rate (7) 239.3 235.4 55.9 27.2 223.1 — Effect of: Change in cash flow assumptions 5.2 18.7 9.1 2.0 12.2 — Actual variances from expected experience 7.2 (4.2) 3.0 1.6 (25.3) — Adjusted balance at January 1, 2022 251.7 249.9 68.0 30.8 210.0 — Issuances (3) 12.5 28.0 — 6.3 12.0 5.3 Interest accruals (3) 6.7 9.0 3.3 1.1 5.9 — Net premiums collected (5) (25.0) (21.5) (5.8) (5.8) (22.8) (5.3) December 31, 2022 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of changes in discount rate assumptions (30.8) (30.7) 2.8 (2.7) (37.7) — Balance at December 31, 2022 215.1 234.7 68.3 29.7 167.4 — Present Value of Expected Future Policy Benefits Balance at January 1, 2022 (7) 660.4 411.5 1,172.7 102.9 590.6 129.1 January 1, 2022 balance at original discount rate (7) 566.1 360.0 802.6 86.6 584.2 115.7 Effect of: Changes in cash flow assumptions 5.2 21.5 11.0 2.0 13.8 — Actual variances from expected experience 7.7 (4.7) 3.6 1.4 (30.0) 0.4 Adjusted balance at January 1, 2022 579.0 376.8 817.2 90.0 568.0 116.1 Issuances 12.4 28.3 — 6.4 12.0 5.3 Interest accruals 18.0 14.4 47.4 3.4 15.0 4.3 Benefit payments (6) (27.5) (18.5) (59.4) (1.2) (57.9) (12.3) December 31, 2022 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of changes in discount rate assumptions (88.3) (54.0) 62.3 (19.2) (105.4) (10.1) Balance at December 31, 2022 493.6 347.0 867.5 79.4 431.7 103.3 Net liability for future policy benefits 278.4 112.2 799.3 49.6 264.4 103.3 Less: Reinsurance recoverable (63.1) (15.3) (0.8) — (3.4) (3.2) Net liability for future policy benefits, after reinsurance recoverable 215.3 96.9 798.5 49.6 261.0 100.1 Impact of flooring on net liability for future policy benefits 1.1 0.2 — — — — Net liability for future policy benefits at December 31, 2022 $ 216.4 $ 97.1 $ 798.5 $ 49.6 $ 261.0 $ 100.1 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2022, the net LFPB for Supplemental Health was $101.8 million for cancer, $21.8 million for accident, $23.1 million for disability and $114.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. (7) Whole Life, Term Life, and Supplemental Health beginning balance at January 1, 2022 includes reserves acquired from Madison National Life Insurance Company, Inc. on January 1, 2022. The balances of and changes in LFPB (including a summary of the balance and changes in the LFPB on January 1, 2021 due to adoption of ASU 2018-12) as of and for the year ended December 31, 2021 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Change in cash flow assumptions, effect of decrease of the DPL — — — — — — Adjustment for removal of related balances in AOCI — — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 Present Value of Expected Net Premiums Balance at January 1, 2021 $ 176.5 $ 244.1 $ 78.0 $ 25.4 $ 233.0 $ — January 1, 2021 balance at original discount rate 143.5 200.8 55.2 22.0 218.2 — Effect of: Change in cash flow assumptions 2.4 (4.5) (3.3) — (1.8) — Actual variances from expected experience 8.8 6.9 6.3 1.0 6.3 — Adjusted balance at January 1, 2021 154.7 203.2 58.2 23.0 222.7 — Issuances (3) 13.3 29.8 — 10.2 13.0 3.7 Interest accruals (4) 6.2 7.9 3.2 0.8 5.9 — Net premiums collected (5) (16.6) (19.8) (5.6) (6.8) (24.1) (3.7) December 31, 2021 balance at original discount rate 157.6 221.1 55.8 27.2 217.5 — Effect of changes in discount rate assumptions 25.4 32.0 18.8 2.5 4.0 — Balance at December 31, 2021 183.0 253.1 74.6 29.7 221.5 — Present Value of Expected Future Policy Benefits Balance at January 1, 2021 507.1 364.7 1,269.3 95.0 626.9 136.5 January 1, 2021 balance at original discount rate 362.5 294.0 813.5 73.4 589.1 115.9 Effect of: Changes in cash flow assumptions 2.8 (4.8) (3.6) — (3.0) — Actual variances from expected experience 8.7 7.2 6.6 1.1 6.2 (0.4) Adjusted balance at January 1, 2021 374.0 296.4 816.5 74.5 592.3 115.5 Issuances 13.3 29.8 — 10.2 13.0 3.7 Interest accruals 17.1 12.0 47.9 2.9 15.7 4.5 Benefit payments (5) (18.1) (18.7) (61.9) (1.0) (48.4) (12.1) December 31, 2021 balance at original discount rate 386.3 319.5 802.5 86.6 572.6 111.6 Effect of changes in discount rate assumptions 114.4 51.1 370.2 16.3 8.0 13.1 Balance at December 31, 2021 500.7 370.6 1,172.7 102.9 580.6 124.7 Net liability for future policy benefits 317.7 117.6 1,098.1 73.2 359.1 124.7 Less: Reinsurance recoverable (0.5) (5.5) (1.1) (0.2) — — Net liability for future policy benefits, after reinsurance recoverable $ 317.2 $ 112.1 $ 1,097.0 $ 73.0 $ 359.1 $ 124.7 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2021, the net LFPB for Supplemental Health was $140.8 million for cancer, $28.7 million for accident, $29.3 million for disability and $160.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The following table reconciles the net LFPB to LFPB in the Consolidated Balance Sheets. DPL for single premium and immediate annuity products is presented together with LFPB in the Consolidated Balance Sheets: ($ in millions) September 30, 2023 December 31, 2022 Whole life $ 262.7 $ 279.5 Term life 112.4 112.4 Experience life 743.2 799.3 Limited-pay whole life 48.2 49.6 Supplemental health 234.0 264.4 SPIA (life contingent) 98.2 103.3 Limited-pay whole life DPL 3.9 3.2 SPIA (life contingent) DPL 1.2 0.8 Reconciling items (1) 109.6 105.5 Total $ 1,613.4 $ 1,718.0 (1) Reconciling items primarily relate to products not in scope of ASU 2018-12 and return of premium reserves. The following table summarizes the amount of revenue and interest related to traditional and limited-payment contracts recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss): ($ in millions) Gross premiums or assessments Gross premiums or assessments Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 7.2 $ 7.0 $ 20.5 $ 19.3 Term life 11.7 11.3 33.9 31.6 Experience life 8.1 8.4 24.2 25.2 Limited-pay whole life 2.2 2.0 5.5 6.3 Supplemental health 30.0 30.4 89.7 91.7 SPIA (life contingent) 0.9 0.9 4.5 4.2 Total $ 60.1 $ 60.0 $ 178.3 $ 178.3 ($ in millions) Interest expense Interest expense Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 3.0 $ 2.8 $ 8.8 $ 8.4 Term life 1.2 1.0 3.6 3.2 Experience life 10.9 11.1 32.8 33.2 Limited-pay whole life 0.6 0.6 1.9 1.8 Supplemental health 2.1 2.2 6.4 6.9 SPIA (life contingent) 1.1 1.1 3.3 3.3 Total $ 18.9 $ 18.8 $ 56.8 $ 56.8 The following table provides the amount of undiscounted and discounted expected gross premiums and expected future benefits and expenses for traditional and limited-payment contracts: ($ in millions) As of September 30, 2023 As of December 31, 2022 Undiscounted Discounted Undiscounted Discounted Whole life Expected future gross premiums $ 473.9 $ 323.6 $ 469.0 $ 322.5 Expected future benefits and expenses 1,138.5 591.2 1,121.4 580.4 Term life Expected future gross premiums 757.0 471.7 739.3 464.2 Expected future benefits and expenses 704.2 411.4 678.0 401.0 Experience Life Expected future gross premiums 542.1 301.8 569.6 315.5 Expected future benefits and expenses 1,713.6 796.4 1,755.4 805.2 Limited-pay whole life Expected future gross premiums 63.3 48.2 60.8 46.5 Expected future benefits and expenses 238.3 104.3 226.8 98.6 Supplemental health Expected future gross premiums 1,639.2 1,206.3 1,615.5 1,208.1 Expected future benefits and expenses 713.5 517.2 761.4 563.6 SPIA (life contingent) Expected future gross premiums — — — — Expected future benefits and expenses 156.7 111.9 157.7 113.4 For the nine months ended September 30, 2023 and for the year ended December 31, 2022, net premiums exceeded gross premiums for several cohorts in the Whole Life and Term Life product lines. This resulted in an immaterial change to current period benefit expense for both periods. The following table summarizes the ranges of actual experience and expected experience for mortality and lapses of LFPB: September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.7 % 0.1% - 0.6% 1.7 % 0.1 % N.M. Expected experience 0.7 % 0.1% - 1.7% 1.6 % 0.3 % N.M. Lapses Actual experience 3.6 % 5.3% - 7.3% 3.2 % 4.3 % N.M. Expected experience 4.7 % 5.7% - 32.2% 3.1 % 5.3 % N.M. September 30, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.8 % 0.1% - 0.3% 1.6 % 0.2 % N.M. Expected experience 0.7 % 0.1% - 0.8% 1.4 % 0.2 % N.M. Lapses Actual experience 3.1 % 5.6% - 63.0% 3.4 % 4.0 % N.M. Expected experience 5.8 % 6.6% - 7.3% 3.2 % 7.5 % N.M. The following table provides the weighted-average durations of LFPB, in years: As of September 30, 2023 2022 Whole life 17.8 17.7 Term life 16.4 15.8 Experience life 10.4 10.7 Limited-pay whole life 22.2 21.3 Supplemental health 10.4 9.9 SPIA (life contingent) 7.6 7.7 The following table provides ranges of the weighted-average interest rates for LFPB: As of September 30, 2023 2022 Whole life Interest accretion rate 1.7% - 4.9% 1.7% - 5.0% Current discount rate 5.5% - 5.9% 4.9% - 5.4% Term life Interest accretion rate 4.2% - 4.3% 4.1% - 4.3% Current discount rate 5.9% - 5.9% 5.5% - 5.5% Experience life Interest accretion rate 6.1 % 6.1 % Current discount rate 5.9 % 5.5 % Limited-pay whole life Interest accretion rate 3.9 % 3.9 % Current discount rate 5.9 % 5.4 % Supplemental health Interest accretion rate 1.7% - 2.7% 1.7% - 2.7% Current discount rate 5.9% - 6.1% 5.4% - 5.8% SPIA (life contingent) Interest accretion rate 1.7% - 4.1% 1.7% - 4.0% Current discount rate 5.8% - 5.8% 5.4% - 5.4% Liability for Policyholders' Account Balances The Company recognizes a liability for policyholders' account balances. The following tables summarize balances of and changes in policyholders' account balances: ($ in millions) Three Months Ended September 30, 2023 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at July 1, 2023 $ 52.0 $ 63.0 $ 4,563.5 $ 481.2 $ 33.5 Premiums received (1) $ 3.1 $ (0.1) $ 70.0 $ 5.3 $ 0.5 Surrenders and withdrawals (2) (0.2) (1.1) (87.8) (17.6) — Benefit payments (3) — (0.4) (21.2) (0.6) (1.2) Net transfers from (to) separate account (0.3) — 3.0 (3.1) — Interest credited (4) 0.7 0.8 40.8 3.0 0.3 Other (0.6) (0.1) 0.2 (0.2) — Balance at September 30, 2023 $ 54.7 $ 62.1 $ 4,568.5 $ 468.0 $ 33.1 Weighted-average crediting rate 5.4 % 5.2 % 3.6 % 2.6 % 3.7 % Net amount at risk (5) $ — $ — $ 53.9 $ — $ — Cash surrender value $ 37.7 $ 61.4 $ 4,512.3 $ 456.8 $ 32.9 ($ in millions) Three Months Ended September 30, 2022 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at July 1, 2022 $ 42.6 $ 65.4 $ 4,573.7 $ 518.2 $ 36.3 Premiums received (1) $ 3.2 $ (0.2) $ 61.3 $ 8.0 $ 0.3 Surrenders and withdrawals (2) (0.1) (0.9) (64.4) (9.8) — Benefit payments (3) — (0.4) (17.7) (1.1) (1.4) Net transfers from (to) separate account — — 7.8 (0.7) — Interest credited (4) — 0.9 39.2 0.1 0.2 Other (0.9) (0.1) 4.2 2.2 — Balance at September 30, 2022 $ 44.8 $ 64.7 $ 4,604.1 $ 516.9 $ 35.4 Weighted-average crediting rate — % 5.7 % 3.5 % 0.1 % 2.3 % Net amount at risk (5) $ — $ — $ 110.2 $ — $ — Cash surrender value $ 29.0 $ 64.0 $ 4,546.5 $ 501.7 $ 35.0 (1) Premiums received represents premiums collected from policyholder during the period of in force business. (2) Surrenders and withdrawals represent reductions to the policyholders' account balance due to policyholders surrendering the policy or withdrawing funds from the account balance. (3) Benefit payments represent benefits due under contract that were paid to a policyholder during the periods. (4) Interest credited represents interest earned and credited to policyholders' account balance during the periods. (5) Net amount at risk represents guaranteed benefit amounts less current policyholders' account balance at the reporting date. ($ in millions) Nine Months Ended September 30, 2023 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at January 1, 2023 $ 47.6 $ 64.3 $ 4,591.1 $ 510.3 $ 34.4 Premiums received (1) $ 9.8 $ (0.5) $ 183.9 $ 15.8 $ 2.6 Surrenders and withdrawals (2) (0.9) (2.6) (289.8) (50.1) (0.2) Benefit payments (3) — (1.3) (58.1) (2.1) (4.3) Net transfers from (to) separate account (0.5) — 17.5 (6.4) — Interest credited (4) 0.9 2.3 120.7 3.9 0.8 Other (2.2) (0.1) 3.2 (3.4) (0.2) Balance at September 30, 2023 $ 54.7 $ 62.1 $ 4,568.5 $ 468.0 $ 33.1 Weighted-average crediting rate 2.3 % 5.0 % 3.6 % 1.1 % 3.1 % Net amount at risk (5) $ — $ — $ 53.9 $ — $ — Cash surrender value $ 37.7 $ 61.4 $ 4,512.3 $ 456.8 $ 32.9 ($ in millions) Nine Months Ended September 30, 2022 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at January 1, 2022 $ 39.1 $ 66.2 $ 4,532.7 $ 522.6 $ 37.7 Premiums received (1) $ 7.9 $ (0.2) $ 156.0 $ 25.4 $ 1.7 Surrenders and withdrawals (2) (0.7) (2.4) (184.2) (30.1) (0.4) Benefit payments (3) — (1.2) (50.6) (2.9) (4.4) Net transfers from (to) separate account — — 34.6 (1.1) — Interest credited (4) 0.8 2.4 116.4 3.2 0.8 Other (2.3) (0.1) (0.8) (0.2) — Balance at September 30, 2022 $ 44.8 $ 64.7 $ 4,604.1 $ 516.9 $ 35.4 Weighted-average crediting rate 2.7 % 5.0 % 3.5 % 0.8 % 3.0 % Net amount at risk (5) $ — $ — $ 110.2 $ — $ — Cash surrender value $ 29.0 $ 64.0 $ 4,546.5 $ 501.7 $ 35.0 (1) Premiums received represents premiums collected from policyholder during the period of in force business. (2) Surrenders and withdrawals represent reductions to the policyholders' account balance due to policyholders surrendering the policy or withdrawing funds from the account balance. (3) Benefit payments represent benefits due under contract that were paid to a policyholder during the periods. (4) Interest credited represents interest earned and credited to policyholders' account balance during the periods. (5) Net amount at risk represents guaranteed benefit amounts less current policyholders' account balance at the reporting date. The following table reconciles policyholders' account balances to the policyholders' account balance liability in the Consolidated Balances Sheets: ($ in millions) September 30, 2023 December 31, 2022 Indexed universal life $ 54.7 $ 47.6 Experience Life 62.1 64.3 Fixed account annuities 4,568.5 4,591.1 Fixed indexed account annuities 468.0 510.3 SPIA (non-life contingent) 33.1 34.4 Reconciling items (1) 17.6 12.9 Total $ 5,204.0 $ 5,260.6 (1) Reconciling items primarily relate to FIA reserves net of account balances, miscellaneous fixed annuity reserves, personal promise accounts and MRBs. The following tables present the gross account values by range of guaranteed minimum crediting rates and the related range of difference, in basis points, between rates being credited to policyholders and the respective guaranteed minimums: ($ in millions) September 30, 2023 At Guaranteed Minimum 1-50 Basis Points Above 51-150 Basis Points Above Greater Than 150 Basis Points Above Total (1) Guaranteed minimum crediting rates: Less than 2% $ 64.4 $ 252.2 $ 417.3 $ 182.3 $ 916.2 Equal to 2% but less than 3% 197.9 56.0 38.0 37.0 328.9 Equal to 3% but less than 4% 598.0 22.3 0.7 — 621.0 Equal to 4% but less than 5% 2,692.8 — — — 2,692.8 5% or higher 89.3 — — — 89.3 Total $ 3,642.4 $ 330.5 $ 456.0 $ 219.3 $ 4,648.2 ($ in millions) December 31, 2022 At Guaranteed Minimum 1-50 Basis Points Above 51-150 Basis Points Above Greater Than 150 Basis Points Above Total (1) Guaranteed minimum crediting rates: Less than 2% $ 262.5 $ 370.6 $ 214.4 $ 96.1 $ 943.6 Equal to 2% but less than 3% 256.1 19.8 4.7 — 280.6 Equal to 3% but less than 4% 667.4 0.4 0.4 — 668.2 Equal to 4% but less than 5% 2,706.1 — — — 2,706.1 5% or higher 91.7 — — — 91.7 Total $ 3,983.8 $ 390.8 $ 219.5 $ 96.1 $ 4,690.2 (1) Excludes products not containing a fixed guaranteed minimum crediting rate. Separate Account Liabilities Separate account assets and liabilities consist of investment accounts established and maintained by the Company for certain variable contracts. Some of these variable contracts include minimum guarantees such as GMDBs that guarantee a minimum payment to the policyholder in the event of death. The assets that support variable contracts are measured at fair value and are reported as separate account assets on the Consolidated Balance Sheets. An equivalent amount is reported as separate account liabilities. MRB assets and liabilities for minimum guarantees are valued and presented separately from separate account assets and separate account liabilities. MRBs are discussed further in the market risk benefits section of this Note to the Consolidated Financial Statements. Policy charges assessed against the policyholders for mortality, administration and other services are included in the life premiums and contract charges line item on the Consolidated Statements of Operations and Comprehensive Income (Loss). The following table presents the balances of and changes in the Separate Account variable annuity liabilities presented in the Consolidated Balance Sheets (1) : ($ in millions) Retirement Services Variable Account Annuities September 30, 2023 December 31, 2022 Balance, beginning of year $ 2,792.3 $ 3,441.0 Deposits 173.9 240.3 Withdrawals (163.3) (186.8) Net transfers (11.1) (38.1) Fees and charges (28.0) (36.8) Market appreciation (depreciation) 215.6 (619.7) Other (5.4) (7.6) Balance, end of period $ 2,974.0 $ 2,792.3 (1) The Separate Account variable annuity liabilities are backed by, and are equal to, the Separate Account variable annuity assets that represent contractholder funds invested in various actively traded mutual funds that have daily quoted net asset values that are readily determinable for identical assets that the Company can access. Market Risk Benefits The following table presents the balances of and changes in MRBs associated with deferred variable annuities as of and for the three and nine months ended September 30, 2023 and 2022, respectively: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Balance, beginning of period $ (3.6) $ 4.6 $ 0.2 $ 4.8 Balance, beginning of period, before effects of changes in the instrument-specific credit risk (3.2) 4.2 — 2.0 Changes in market risk benefits (1) (1.3) (1.6) (4.5) 0.6 Balance, end of period (2) $ (4.5) $ 2.6 $ (4.5) $ 2.6 Effect of changes in the instrument-specific credit risk — 0.3 — 0.3 Balance, end of period $ (4.5) $ 2.9 $ (4.5) $ 2.9 Net amount at risk (3) $ 37.6 $ 79.9 $ 37.6 $ 79.9 Weighted-average attained age of contract holders 63 63 63 63 (1) Reflects interest accruals and effect of changes in interest rates, equity markets, equity index volatility and future assumptions. (2) Balance, end of period, before the effect of changes in the instrument-specific credit risk. (3) Net amount at risk represents the current guaranteed benefit less current account balance at the reporting date. The following table presents MRBs by amounts in an asset position and amounts in a liability position. The net liabilities (assets) are included in Policyholders' account balances presented in the Consolidated Balance Sheets. ($ in millions) As of September 30, 2023 As of December 31, 2022 (Asset) Liability Net (Asset) Liability Net Deferred variable annuities $ (6.4) $ 1.9 $ (4.5) $ (4.4) $ 4.7 $ 0.3 DAC and Deferred Sales Inducements The following tables roll-forward DAC for the periods indicated: ($ in millions) Three Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 21.6 $ 31.4 $ 5.7 $ 7.0 $ 16.1 $ 7.0 $ 217.2 Capitalizations 0.7 1.5 0.1 0.4 0.6 0.7 3.7 Amortization expense (0.3) (0.8) (0.1) (0.1) (0.2) (0.2) (3.6) Experience adjustment (0.1) (0.1) — (0.1) (0.1) — (2.3) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Nine Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 Capitalizations 2.0 4.3 0.2 0.9 1.8 2.0 11.4 Amortization expense (0.9) (2.2) (0.3) (0.3) (0.7) (0.5) (11.0) Experience adjustment (0.1) (0.1) — (0.1) (0.1) (0.2) (6.5) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Year Ended December 31, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of year $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 Capitalizations 3.0 5.0 0.2 1.4 2.5 1.8 15.5 Amortization expense (1.2) (2.5) (0.4) (0.3) (0.8) (0.5) (15.8) Experience adjustment — — — — — — (1.9) Balance, end of year $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 ($ in millions) Year Ended December 31, 2021 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 Capitalizations 2.4 4.2 0.2 1.5 1.7 1.1 17.3 Amortization expense (1.1) (2.3) (0.4) (0.3) (0.8) (0.5) (16.0) Experience adjustment — — — — (0.1) — (1.1) Balance, end of year December 31, 2021 $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 The following table presents a reconciliation of DAC to the Consolidated Balance Sheets: ($ in millions) September 30, 2023 December 31, 2022 Whole life $ 21.9 $ 20.9 Term life 32.0 30.0 Experience life 5.7 5.8 Limited pay whole life 7.2 6.7 Indexed universal life 16.4 15.4 Supplemental health 7.5 6.2 Total annuities 215.0 221.1 Reconciling item (1) 29.2 24.5 Total $ 334.9 $ 330.6 (1) Reconciling item relates to DAC associated with the Property & Casualty reporting segment. The assumptions used to amortize DAC were consistent with the assumptions used to estimate LFPB for traditional and limited-payment contracts. The underlying assumptions for DAC and LFPB were updated at the same time. In the second quarter of 2023 and 2022, the Company conducted a review of all significant assumptions and did not make any changes to future assumptions because actual experience for mortality and lapses was materially consistent with underlying assumptions. The following table rolls-forward the deferred sales inducements balance as of and for the three and nine months ended September 30, 2023: ($ in millions) Three Months Ended September 30, 2023 Nine Months Ended September 30, 2023 Balance, beginning of period $ 14.9 $ 15.9 Capitalizations — — Amortization expense (0.2) (0.8) Experience adjustment (0.2) (0.6) Balance, end of period $ 14.5 $ 14.5

Reinsurance

Reinsurance	9 Months Ended
	Sep. 30, 2023
Insurance [Abstract]
Reinsurance	Reinsurance The Company recognizes the cost of reinsurance premiums over the contract periods for such premiums in proportion to the insurance protection provided. Amounts recoverable from reinsurers for unpaid claims and claim settlement expenses, including estimated amounts for unsettled claims, claims incurred but not yet reported and policy benefits, are estimated in a manner consistent with the insurance liability associated with the policy. The effects of reinsurance on net premiums written and contract deposits; net premiums and contract charges earned; and benefits, claims and settlement expenses were as follows: ($ in millions) Direct Ceded to Other Companies (1) Assumed Net Three months ended September 30, 2023 Net premiums written and contract deposits (2) $ 424.0 $ 16.5 $ 8.4 $ 415.9 Net premiums and contract charges earned 276.7 18.7 8.0 266.0 Benefits, claims and settlement expenses 205.2 9.1 3.1 199.2 Three months ended September 30, 2022 Net premiums written and contract deposits (2) $ 391.2 $ 15.4 $ 13.4 $ 389.2 Net premiums and contract charges earned 261.6 17.6 13.4 257.4 Benefits, claims and settlement expenses 170.9 8.3 4.6 167.1 Nine months ended September 30, 2023 Net premiums written and contract deposits (2) $ 1,186.5 $ 51.0 $ 28.2 $ 1,163.7 Net premiums and contract charges earned 812.3 57.2 27.5 782.6 Benefits, claims and settlement expenses 615.6 36.1 8.1 587.6 Nine months ended September 30, 2022 Net premiums written and contract deposits (2) $ 1,127.1 $ 46.7 $ 39.5 $ 1,119.9 Net premiums and contract charges earned 782.5 53.5 39.6 768.6 Benefits, claims and settlement expenses 564.9 34.1 14.9 545.7 (1) Excludes the annuity reinsurance transaction accounted for using the deposit method. (2) This measure is not based on accounting principles generally accepted in the United States of America (non-GAAP). An explanation of this non-GAAP measure is contained in the Glossary of Selected Terms included as Exhibit 99.1 in the Company's reports filed with the SEC.

Debt

Debt	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Debt	Debt Debt Issuance On September 15, 2023, the Company issued $300.0 million aggregate principal amount of 7.25% senior notes (2023 Senior Notes), which will mature on September 15, 2028, issued at a discount resulting in an effective yield of 7.29%. Interest on the 2023 Senior Notes is payable semi-annually at a rate of 7.25%. The 2023 Senior Notes are redeemable in whole or in part, at any time, at the Company's option, at a redemption price equal to the greater of (1) 100% of the principal amount of the notes being redeemed or (2) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted, on a semi-annual basis, at the Treasury yield (as defined in the indenture) plus 45 basis points, plus, in either of the above cases, accrued interest to the date of redemption. The net proceeds from the sale of the 2023 Senior Notes were used to fully repay the $249.0 million balance on the Revolving Credit Facility with remaining net proceeds from the sale to be used for general corporate purposes.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Information	Segment Information The Company conducts and manages its business in four reporting segments. The three operating segments, representing the major lines of business, are: (1) Property & Casualty (primarily personal lines of auto and property insurance products), (2) Life & Retirement (primarily tax-qualified fixed and variable annuities as well as life insurance products), and (3) Supplemental & Group Benefits (primarily cancer, heart, hospital, supplemental disability, accident, short-term and long-term group disability, and group term life coverages). The Company does not allocate the impact of corporate-level transactions to these operating segments, consistent with the basis for management's evaluation of the results of those segments, but classifies those items in the fourth reporting segment, Corporate & Other. In addition to ongoing transactions such as corporate debt service, net investment gains (losses) and certain public company expenses, such items in Corporate & Other have also included corporate debt retirement costs, when applicable. Summarized financial information for these segments is as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net premiums and contract charges earned Property & Casualty $ 164.3 $ 152.4 $ 474.1 $ 452.5 Life & Retirement 38.2 36.8 113.3 108.9 Supplemental & Group Benefits 63.5 68.2 195.2 207.2 Total $ 266.0 $ 257.4 $ 782.6 $ 768.6 Net investment income Property & Casualty $ 12.0 $ 8.0 $ 26.6 $ 22.9 Life & Retirement 96.9 81.4 274.1 254.0 Supplemental & Group Benefits 10.3 8.7 28.5 25.4 Corporate & Other 0.2 — 0.2 — Intersegment eliminations (0.5) (0.5) (1.6) (1.6) Total $ 118.9 $ 97.6 $ 327.8 $ 300.7 Net income (loss) Property & Casualty $ (11.3) $ (2.5) $ (44.3) $ (19.4) Life & Retirement 20.9 17.7 52.3 57.1 Supplemental & Group Benefits 15.8 20.7 41.6 48.9 Corporate & Other (13.7) (15.5) (44.1) (50.1) Total $ 11.7 $ 20.4 $ 5.5 $ 36.5 ($ in millions) September 30, 2023 December 31, 2022 Assets Property & Casualty $ 1,142.2 $ 1,083.8 Life & Retirement 10,856.2 10,754.5 Supplemental & Group Benefits 1,299.8 1,359.3 Corporate & Other 172.6 173.4 Intersegment eliminations (58.4) (64.9) Total $ 13,412.5 $ 13,306.1

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) AOCI represents the accumulated change in shareholders’ equity from transactions and other events and circumstances from non-shareholder sources. For the Company, AOCI includes the after tax change in net unrealized investment gains (losses) on fixed maturity securities, the after tax change in net reserve remeasurements attributable to discount rates and the after tax change in net funded status of benefit plans for the periods as shown in the Consolidated Statements of Changes in Shareholders’ Equity. The following table reconciles these components. ($ in millions) Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities (1) Net Reserve Remeasurements Attributable to Discount Rates (1) Net Funded Status of Benefit Plans (1) Total (1) Beginning balance, July 1, 2023 $ (393.7) $ 42.9 $ (8.8) $ (359.6) Other comprehensive income (loss) before reclassifications (143.7) 90.7 — (53.0) Amounts reclassified from AOCI (2) 2.7 — — 2.7 Net current period other comprehensive income (loss) (141.0) 90.7 — (50.3) Ending balance, September 30, 2023 $ (534.7) $ 133.6 $ (8.8) $ (409.9) Beginning balance, July 1, 2022 $ (281.8) $ (36.9) $ (10.2) $ (328.9) Other comprehensive income (loss) before reclassifications (223.4) 110.7 — (112.7) Amounts reclassified from AOCI (3) 8.4 — — 8.4 Net current period other comprehensive income (loss) (215.0) 110.7 — (104.3) Ending balance, September 30, 2022 $ (496.8) $ 73.8 $ (10.2) $ (433.2) Beginning balance, January 1, 2023 $ (449.6) $ 59.0 $ (8.8) $ (399.4) Other comprehensive income (loss) before reclassifications (101.3) 74.6 — (26.7) Amounts reclassified from AOCI (2) 16.2 — — 16.2 Net current period other comprehensive income (loss) (85.1) 74.6 — (10.5) Ending balance, September 30, 2023 $ (534.7) $ 133.6 $ (8.8) $ (409.9) Beginning balance, January 1, 2022 $ 347.1 $ (386.9) $ (10.2) $ (50.0) Other comprehensive income (loss) before reclassifications (856.5) 460.7 — (395.8) Amounts reclassified from AOCI (2) 12.6 — — 12.6 Net current period other comprehensive income (loss) (843.9) 460.7 — (383.2) Ending balance, September 30, 2022 $ (496.8) $ 73.8 $ (10.2) $ (433.2) (1) All amounts are net of tax. (2) The pretax amounts reclassified from AOCI, $(3.5) million and $(20.5) million, are included in Net investment gains (losses) and the related income tax benefits, $(0.7) million and $(4.3) million, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2023, respectively. (3) The pretax amounts reclassified from AOCI, $(10.7) million and $(15.9) million, are included in Net investment gains (losses) and the related income tax benefits, $(2.3) million and $(3.4) million, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2022, respectively. Comparative information for elements that are not required to be reclassified in their entirety to net income in the same reporting period is disclosed in Note 2.

Supplemental Consolidated Cash

Supplemental Consolidated Cash and Cash Flow Information	9 Months Ended
	Sep. 30, 2023
Supplemental Cash Flow Elements [Abstract]
Supplemental Consolidated Cash and Cash Flow Information	Supplemental Consolidated Cash and Cash Flow Information ($ in millions) September 30, 2023 December 31, 2022 Cash $ 33.7 $ 42.2 Restricted cash 0.8 0.6 Total cash and restricted cash reported in the Consolidated Balance Sheets $ 34.5 $ 42.8 ($ in millions) Nine Months Ended 2023 2022 Cash paid for: Interest $ 18.3 $ 9.1 Income taxes 14.8 6.4 Non-cash activities were not material for the three and nine months ended September 30, 2023 and 2022, respectively.

Contingencies and Commitments

Contingencies and Commitments	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Contingencies and Commitments	Contingencies and Commitments Lawsuits and Legal Proceedings Companies in the insurance industry have been subject to substantial litigation resulting from claims, disputes and other matters. For instance, they have faced expensive claims, including class action lawsuits, alleging, among other things, improper sales practices and improper claims settlement procedures. Negotiated settlements of certain such actions have had a material adverse effect on many insurance companies. At the time of issuance of this Quarterly Report on Form 10-Q, the Company does not have pending litigation from which there is a reasonable possibility of material loss. Assessments for Insolvencies of Unaffiliated Insurance Companies The Company is contingently liable for possible assessments under regulatory requirements pertaining to potential insolvencies of unaffiliated insurance companies. Liabilities, which are established based upon regulatory guidance, have generally been insignificant. Investment Commitments The Company has outstanding commitments to fund investments primarily in limited partnership interests. Such unfunded commitments were $505.9 million and $704.2 million as of September 30, 2023 and December 31, 2022, respectively.

Prior Period Consolidated Finan

Prior Period Consolidated Financial Statements	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Prior Period Consolidated Financial Statements	Prior Period Consolidated Financial Statements Effective January 1, 2023, the Company adopted ASU 2018-12, Financial Services – Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts (also known as LDTI). The Company adopted LDTI using the modified retrospective approach where permitted with changes applied as of January 1, 2021. As a result of adoption, the Company’s prior period consolidated financial statements have been restated. The following tables summarize the effects of adopting LDTI on our unaudited Consolidated Financial Statements. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED BALANCE SHEET (UNAUDITED) ($ in millions, except share data) December 31, 2022 Effect of the Adoption of ASU 2018-12 Reclassifications (1) December 31, 2022 As Reported As Adjusted Assets Total investments $ 6,587.6 $ — $ — $ 6,587.6 Cash 42.8 — — 42.8 Deferred policy acquisition costs 433.1 (102.5) — 330.6 Reinsurance balances receivable 506.2 (38.2) — 468.0 Deposit asset on reinsurance 2,516.6 — — 2,516.6 Intangible assets 185.2 — — 185.2 Goodwill 54.3 — — 54.3 Other assets 328.7 — — 328.7 Separate Account variable annuity assets 2,792.3 — — 2,792.3 Total assets $ 13,446.8 $ (140.7) $ — $ 13,306.1 Liabilities and Shareholders' Equity Policy liabilities Investment contract and policy reserves $ 6,968.0 $ (151.9) $ (6,816.1) $ — Future policy benefit reserves 1,718.0 1,718.0 Policyholders' account balances 5,260.6 5,260.6 Unpaid claims and claim expenses 585.1 (2.9) (18.2) 564.0 Unearned premiums 264.2 1.9 — 266.1 Total policy liabilities 7,817.3 (152.9) 144.3 7,808.7 Other policyholder funds 954.0 (0.4) (144.3) 809.3 Other liabilities 297.0 2.5 — 299.5 Short-term debt 249.0 — — 249.0 Long-term debt 249.0 — — 249.0 Separate Account variable annuity liabilities 2,792.3 — — 2,792.3 Total liabilities 12,358.6 (150.8) — 12,207.8 Preferred stock — — — — Common stock 0.1 — — 0.1 Additional paid-in capital 502.6 — — 502.6 Retained earnings 1,468.6 43.8 — 1,512.4 Accumulated other comprehensive income (loss), net of tax: Net unrealized investment losses on fixed maturity securities (356.9) (92.7) — (449.6) Net reserve remeasurements attributable to discount rates — 59.0 — 59.0 Net funded status of benefit plans (8.8) — — (8.8) Treasury stock, at cost (517.4) — — (517.4) Total shareholders’ equity 1,088.2 10.1 — 1,098.3 Total liabilities and shareholders’ equity $ 13,446.8 $ (140.7) $ — $ 13,306.1 (1) The Company has reclassified the presentation of certain information to conform to the current year's presentation. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) ($ in millions, except per share data) Three Months Ended Effect of the Adoption of ASU 2018-12 Three Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Statement of Operations Revenues Net premiums and contract charges earned $ 257.8 $ (0.4) $ 257.4 Net investment income 97.6 — 97.6 Net investment losses (12.8) — (12.8) Other income 0.4 — 0.4 Total revenues 343.0 (0.4) 342.6 Benefits, losses and expenses Benefits, claims and settlement expenses 173.6 (6.4) 167.1 Interest credited 45.9 (1.1) 44.8 Operating expenses 75.6 — 75.6 DAC amortization expense 23.3 (1.1) 22.2 Intangible asset amortization expense 4.2 — 4.2 Interest expense 5.3 — 5.3 Total benefits, losses and expenses 327.9 (8.6) 319.2 Income before income taxes 15.1 8.3 23.4 Income tax expense (benefit) 1.2 1.8 3.0 Net income (loss) 13.9 6.5 20.4 Net income (loss) per share Basic 0.33 0.16 0.49 Diluted 0.33 0.16 0.49 Weighted average number of shares and equivalent shares Basic 41.4 — 41.4 Diluted 41.6 — 41.6 Statement of Comprehensive Income (Loss) Net income (loss) 13.9 6.5 20.4 Other comprehensive income (loss), net of tax: Change in net unrealized investment losses on fixed maturity securities (176.3) (38.7) (215.0) Change in net reserve remeasurements attributable to discount rates — 110.7 110.7 Change in net funded status of benefit plans — — — Other comprehensive loss (176.3) 72.0 (104.3) Comprehensive income (loss) $ (162.4) $ 78.5 $ (83.9) HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) ($ in millions, except per share data) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Statement of Operations Revenues Net premiums and contract charges earned $ 769.5 $ (0.9) $ 768.6 Net investment income 300.7 — 300.7 Net investment losses (43.8) — (43.8) Other income 9.7 — 9.7 Total revenues 1,036.1 (0.9) 1,035.2 Benefits, losses and expenses Benefits, claims and settlement expenses 558.2 (12.5) 545.7 Interest credited 129.1 (3.2) 125.9 Operating expenses 229.7 (0.3) 229.4 DAC amortization expense 76.7 (11.0) 65.7 Intangible asset amortization expense 12.6 — 12.6 Interest expense 13.5 — 13.5 Total benefits, losses and expenses 1,019.8 (27.0) 992.8 Income before income taxes 16.3 26.1 42.4 Income tax expense (benefit) 0.4 5.5 5.9 Net income 15.9 20.6 36.5 Net income per share Basic 0.38 0.49 0.87 Diluted 0.38 0.49 0.87 Weighted average number of shares and equivalent shares Basic 41.7 — 41.7 Diluted 41.9 — 41.9 Statement of Comprehensive Income (Loss) Net income 15.9 20.6 36.5 Other comprehensive income (loss), net of tax: Change in net unrealized investment losses on fixed maturity securities (687.4) (156.5) (843.9) Change in net reserve remeasurements attributable to discount rates — 460.7 460.7 Change in net funded status of benefit plans — — — Other comprehensive loss (687.4) 304.2 (383.2) Comprehensive income (loss) $ (671.5) $ 324.8 $ (346.7) HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) ($ in millions, except per share data) Three Months Ended Effect of the Adoption of ASU 2018-12 Three Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Common stock, $0.001 par value Ending balance $ 0.1 $ — $ 0.1 Additional paid-in capital Ending balance 500.4 — 500.4 Retained earnings Beginning balance 1,499.9 35.4 1,535.3 Net income 13.9 6.5 20.4 Effect of adopting ASU 2018-12 (1) — — — Dividends,per share; 2022, $0.32 per share (13.4) 0.1 (13.3) Ending balance 1,500.4 42.0 1,542.4 Accumulated other comprehensive income (loss), net of tax: Beginning balance (230.6) (98.3) (328.9) Change in net unrealized investment losses on fixed maturity securities (176.3) (38.7) (215.0) Change in net reserve remeasurements attributable to discount rates — 110.7 110.7 Change in net funded status of benefit plans — — — Ending balance (406.9) (26.3) (433.2) Treasury stock, at cost Ending balance (517.4) — (517.4) Shareholders' equity at end of period $ 1,076.6 $ 15.7 $ 1,092.3 (1) See Note 1 to the Consolidated Financial Statements for information regarding ASU 2018-12. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) ($ in millions, except per share data) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Common stock, $0.001 par value Ending balance $ 0.1 $ — $ 0.1 Additional paid-in capital Ending balance 500.4 — 500.4 Retained earnings Beginning balance 1,524.9 22.1 1,547.0 Net income 15.9 20.6 36.5 Effect of adopting ASU 2018-12 (1) — (0.8) (0.8) Dividends,per share; 2022, $0.32 per share (40.4) 0.1 (40.3) Ending balance 1,500.4 42.0 1,542.4 Accumulated other comprehensive income (loss), net of tax: Beginning balance 280.5 (330.5) (50.0) Change in net unrealized investment losses on fixed maturity securities (687.4) (156.5) (843.9) Change in net reserve remeasurements attributable to discount rates — 460.7 460.7 Change in net funded status of benefit plans — — — Ending balance (406.9) (26.3) (433.2) Treasury stock, at cost Ending balance (517.4) — (517.4) Shareholders' equity at end of period $ 1,076.6 $ 15.7 $ 1,092.3 (1) See Note 1 to the Consolidated Financial Statements for information regarding ASU 2018-12. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) ($ in millions) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Cash flows - operating activities Net income $ 15.9 $ 20.6 $ 36.5 Adjustments to reconcile net income to net cash provided by operating activities: Net investment losses 43.8 — 43.8 Depreciation and intangible asset amortization 20.7 — 20.7 Share-based compensation expense 6.7 — 6.7 Loss from EMA investments, net of dividends or distributions 2.1 — 2.1 Changes in: Insurance liabilities 403.3 (179.8) 223.5 Amounts due under reinsurance agreements (344.3) 40.0 (304.3) Income tax liabilities (6.0) 131.1 125.1 Other operating assets and liabilities (31.0) (11.6) (42.6) Other, net 4.6 (0.3) 4.3 Net cash provided by operating activities 115.8 — 115.8 Cash flows - investing activities Net cash used in investing activities (295.9) — (295.9) Cash flows - financing activities Net cash provided by financing activities 82.6 — 82.6 Net decrease in cash (97.5) — (97.5) Cash at beginning of period 133.7 — 133.7 Cash at end of period $ 36.2 $ — $ 36.2

Basis of Presentation and Sig_2

Basis of Presentation and Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying Consolidated Financial Statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP) and with the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and disclosures normally included in annual financial statements prepared in conformity with GAAP, but are not required for interim reporting purposes, have been omitted. These Consolidated Financial Statements and Notes thereto should be read in conjunction with the Consolidated Financial Statements and Notes thereto included in Part II - Item 8 of the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three and nine months ended September 30, 2023 are not necessarily indicative of the results to be expected for the full year. The accompanying Consolidated Financial Statements and Notes thereto are unaudited and reflect all adjustments (generally consisting only of normal recurring accruals) which are, in the opinion of management, necessary for the fair presentation of the consolidated financial position, results of operations and cash flows for the interim periods. The Company's significant accounting policies are summarized in Part II - Item 8, Note 1 of the Consolidated Financial Statements in the Company's Annual Report on Form 10-K for the year ended December 31, 2022. The Company has reclassified the presentation of certain prior period information to conform to the current year's presentation.
Consolidation	Consolidation All intercompany transactions and balances between HMEC and its subsidiaries and affiliates have been eliminated.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the reporting date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. The most significant critical accounting estimates include valuation of hard-to-value fixed maturity securities, evaluation of credit loss impairments for fixed maturity securities, evaluation of goodwill and intangible assets for impairment, valuation of annuity and life deferred policy acquisition costs, valuation of liabilities for property and casualty unpaid claims and claim expense reserves, valuation of liabilities for group benefits unpaid claims and claim expense reserves, valuation of future policy benefit reserves and policyholders' account balances and valuation of long-duration insurance contracts under the new accounting guidance in ASU 2018-12.
Adoption of New Accounting Standards / Significant Accounting Policies	Adoption of New Accounting Standards Accounting for Long-Duration Insurance Contracts In August 2018, the FASB issued ASU 2018-12, Financial Services – Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts, as clarified and amended by (i) ASU 2019-09, Financial Services - Insurance (Topic 944): Effective Date, and (ii) ASU 2020-11, Financial Services - Insurance (Topic 944): Effective Date and Early Application (collectively referred to herein as ASU 2018-12). ASU 2018-12 changed existing recognition, measurement, presentation, and disclosure requirements for long-duration contracts. ASU 2018-12 includes: (1) a requirement to review and, if there is a change, update cash flow assumptions used to measure the liability for future policy benefits (LFPB) at least annually, and to update the discount rate assumption quarterly, (2) a requirement to account for market risk benefits (MRBs) at fair value, (3) simplified amortization for deferred policy acquisition costs (DAC), and (4) enhanced financial statement presentation and disclosures. ASU 2018-12 became effective for the Company for interim and annual periods beginning after December 15, 2022. The Company adopted ASU 2018-12 for LFPB and DAC on a modified retrospective basis such that those balances were adjusted to conform to ASU 2018-12 on January 1, 2021. The Company adopted ASU 2018-12 for MRBs on a full retrospective basis, using hindsight where necessary. For variable annuities, actuarial assumptions (mortality, lapse, and premium payment patterns) used to measure MRBs were unobservable for years prior to 2006 and thus, hindsight was used to determine relevant assumptions for transition purposes. The factors used in applying hindsight included internal experience studies, the historical economic environment, actual performance of the business, and relevant industry information. For LFPB, the net transition adjustment is related to the difference in the discount rate used pre-transition and the discount rate at January 1, 2021. At transition, the Company had several instances, at the cohort level, where net premiums exceeded gross premiums which were recorded as an adjustment to retained earnings. For DAC, the Company removed shadow adjustments previously recorded in accumulated other comprehensive income (loss) (i.e., AOCI) for the impact of net unrealized investment gains (losses) that were included in the pre-ASU 2018-12 expected gross profits amortization calculation as of the transition date. For MRBs, the transition adjustment to AOCI relates to the cumulative effect of changes in the instrument-specific credit risk between contract issue date and transition date. The remaining difference between the fair value and carrying amount of MRBs at transition, excluding the amounts recorded in AOCI, was recorded as an adjustment to retained earnings as of the transition date. While the requirements of ASU 2018-12 represent a significant change from legacy GAAP, the adoption of ASU 2018-12 did not impact cash flows on the Company’s policies, or the underlying economics of the Company’s business. The Company's insurance subsidiaries' risk-based capital amounts and ratios, and regulatory dividends are not impacted as the National Association of Insurance Commissioners (NAIC) rejected ASU 2018-12. See Note 12 for summarization of the effects of adopting ASU 2018-12 on the Company's 2022 Consolidated Financial Statements. Significant Accounting Policies The following significant accounting policy has been added to reflect the Company's adoption of ASU 2018-12 as described above. Liability for Future Policy Benefits LFPB, which is the present value of estimated future policy benefits to be paid to or on behalf of policyholders and certain related expenses less the present value of estimated future net premiums to be collected from policyholders, is accrued as premium revenue is recognized. The liability is estimated using current assumptions that include discount rate, mortality, lapses, and expenses. These current assumptions are based on judgments that consider the Company's historical experience, industry data, and other factors. For traditional, limited-payment and supplemental health contracts, such contracts are grouped into cohorts by contract type and issue year. The liability is adjusted for differences between actual and expected experience. With the exception of the expense assumption, the Company reviews its historical and future cash flow assumptions at least annually and updates the net premium ratio used to calculate the liability each time the assumptions are changed. The Company has elected to use expense assumptions that are locked-in at contract inception and are not subsequently reviewed or updated. At least annually, the Company updates its estimate of cash flows expected over the entire life of a group of contracts using actual historical experience and current future cash flow assumptions. These updated cash flows are used to calculate the revised net premiums and net premium ratio, which are used to derive an updated LFPB as of the beginning of the current reporting period, discounted at the original contract issuance discount rate. This amount is then compared to the carrying amount of the liability as of that same date, before updating cash flow assumptions, to determine the current period change in liability estimate. This current period change in liability estimate is the liability remeasurement gain or loss. The impact of updated cash flow assumptions as well as the periodic liability remeasurement gain or loss is recognized as Benefits, claims and settlement expenses in the Consolidated Statements of Operations and Comprehensive Income (Loss). In subsequent periods, the revised net premiums are used to measure LFPB, subject to future revisions. For traditional and limited-payment contracts, a standard discount rate is used to measure the liabilities that is equivalent to the yield from an A-rated bond. The discount rate assumption is updated quarterly and used to remeasure the liability at the reporting date, with the resulting change reflected in other comprehensive income. For liability cash flows that are projected beyond the duration of market-observable A- rated bond, the Company uses the last market-observable yield level, and uses linear interpolation to determine yield assumptions for durations that do not have market-observable yields. Deferred Profit Liability For limited-payment products, gross premiums received in excess of net premiums are deferred at initial recognition as a DPL. Gross premiums are measured using assumptions consistent with those used in the measurement of LFPB, including discount rate, mortality, lapses, and expenses. DPL is amortized and recognized as premium revenue in proportion to insurance in force for life insurance contracts and expected future benefit payments for annuity contracts. Interest is accreted on the balance of DPL using the discount rate determined at contract issuance. The Company reviews and updates its estimates of cash flows for DPL at the same time as the estimates of cash flows for the liability for future policy benefits. When cash flows are updated, the updated estimates are used to recalculate DPL at contract issuance. The recalculated DPL as of the beginning of the current reporting period is compared to the carrying amount of DPL as of the beginning of the current reporting period, and any difference is recognized as either a charge or credit to Net premiums and contract charges earned presented in the Consolidated Statements of Operations and Comprehensive Income (Loss). DPL is recognized as a component of the Investment contract and future policy benefit reserves presented in the Consolidated Balance Sheets. Market Risk Benefits MRBs are contracts or contract features that both provide protection to the contract holder from other-than-nominal capital market risk and expose the Company to other-than-nominal capital market risk. MRBs include guaranteed minimum death benefits on variable annuity products. MRBs are measured at fair value using a non-option-based valuation model based on current net amounts at risk, market data, Company experience, and other factors. Changes in fair value of MRBs are recognized as a component of Benefits, claims and settlement expenses presented in the Consolidated Statements of Operations and Comprehensive Income (Loss) each period with the exception of the portion of the change in fair value due to a change in the instrument-specific credit risk, which is recognized in other comprehensive income. MRBs are recognized as a component of Policyholders' account balances reserves presented in the Consolidated Balance Sheets. Deferred Policy Acquisition Costs and Deferred Sales Inducements DAC are costs that are incremental and directly related to the successful acquisition of new or renewal insurance contracts. Such costs include the incremental direct costs of contract acquisition, such as sales commissions; the portion of employees' total compensation and payroll-related fringe benefits related directly to time spent performing acquisition activities, such as underwriting, issuing, and processing policies for contracts that have actually been acquired; and other costs related directly to acquisition activities that would not have been incurred if the contract had not been acquired. Contracts are grouped by contract type and issue year into cohorts consistent with the grouping used in estimating the associated liability. DAC is amortized on a constant level basis for the grouped contracts over the expected term of the related contracts to approximate straight-line amortization. For all life insurance products, the constant level basis used is face amount in force. For all deferred annuity products, the constant level basis used is the deposit amount in force. The constant level bases used for amortization are projected using mortality and lapse assumptions that are based on the Company's experience, industry data, and other factors and are consistent with those used for LFPB. If those projected assumptions change in future periods, they will be reflected in the cohort level amortization basis at that time. Unexpected terminations, due to mortality and lapse experience higher than expected, are recognized in the current period as a reduction of the capitalized balances. Amortization of DAC is recognized as DAC amortization expense presented in the Consolidated Statements of Operations and Comprehensive Income (Loss). The DAC balance is reduced for actual experience in excess of expected experience. Changes in future estimates are recognized prospectively over the remaining expected contract term. Deferred sales inducements (DSIs) are contract features that are intended to attract new customers or to persuade existing customers to keep their current policy. DSIs may be deferred if the Company can demonstrate that the deferred sales inducement amounts are both incremental to the amounts Company credits on similar contracts without sales inducements and the amounts are higher than the contract's expected ongoing crediting rates for periods after the inducement. Day-one bonuses and persistency bonuses generally meet the criteria to be deferred. DSIs are amortized using the same methodology and assumptions used to amortize DAC.

Basis of Presentation and Sig_3

Basis of Presentation and Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Liability for Future Policy Benefit, Activity	The following table summarizes the balance of and changes in LFPB on January 1, 2021 due to adoption of ASU 2018-12. The impact of shifts between deferred profit liabilities (DPL) and LFPB for limited-payment products are presented as offsetting line items in the effect of net premiums exceeding gross premiums and the effect of decrease/increase of DPL. ($ in millions) Whole Life Term Life Experience Life Limited Pay Whole Life Supplemental Health (1) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables, end of year December 31, 2020 (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 (1) As of January 1, 2021, the net LFPB for Supplemental Health was $163.5 million for cancer, $31.2 million for accident, $32.0 million for disability and $188.8 million for other supplemental health policies. The balances of and changes in LFPB as of and for the three months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at July 1, 2023 $ 217.5 $ 240.3 $ 68.1 $ 31.7 $ 172.0 $ — July 1, 2023 balance at original discount rate 247.0 265.1 64.7 34.2 207.5 — Effect of: — — — — — — Change in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (1.2) 0.7 (0.3) — — Adjusted balance at July 1, 2023 247.8 263.9 65.4 33.9 207.5 — Issuances (3) 2.2 6.0 — 1.2 3.7 0.8 Interest accruals (4) 1.8 2.6 1.0 0.4 1.5 — Net premiums collected (5) (5.2) (6.3) (1.7) (1.5) (5.6) (0.8) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at July 1, 2023 507.1 360.6 871.5 85.3 426.6 103.6 July 1, 2023 balance at original discount rate 588.7 406.4 799.6 102.6 525.8 113.0 Effect of: Changes in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (0.3) 1.1 (0.3) (0.2) — Adjusted balance at July 1, 2023 589.5 406.1 800.7 102.3 525.6 113.0 Issuances 2.2 6.4 — 1.2 3.7 0.7 Interest accruals 4.8 3.9 11.7 1.0 3.6 1.1 Benefit payments (6) (5.3) (5.0) (16.0) (0.2) (15.7) (2.9) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the nine months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at January 1, 2023 $ 215.1 $ 234.7 $ 68.3 $ 29.7 $ 167.4 $ — January 1, 2023 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of: — — — — — — Change in cash flow assumptions — (5.3) — — — — Actual variances from expected experience 2.6 (2.2) 1.4 1.0 0.3 — Adjusted balance at January 1, 2023 248.5 257.9 66.9 33.4 205.4 — Issuances (3) 7.6 19.0 — 3.3 13.6 4.2 Interest accruals (4) 5.4 7.8 2.8 1.0 4.5 — Net premiums collected (5) (14.9) (18.5) (5.0) (3.7) (16.4) (4.2) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at January 1, 2023 493.6 347.0 867.5 79.4 431.7 103.3 January 1, 2023 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of: Changes in cash flow assumptions — (5.6) — — — — Actual variances from expected experience 2.7 0.4 2.0 1.2 (0.1) (0.5) Adjusted balance at January 1, 2023 584.6 395.8 807.2 99.8 537.0 112.9 Issuances 7.7 19.6 — 3.3 13.6 4.7 Interest accruals 14.2 11.4 35.5 2.9 10.8 3.3 Benefit payments (6) (15.3) (15.4) (46.3) (1.7) (44.2) (9.0) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the year ended December 31, 2022 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present Value of Expected Net Premiums Balance at January 1, 2022 (7) $ 260.7 $ 264.4 $ 74.6 $ 29.7 $ 226.7 $ — January 1, 2022 balance at original discount rate (7) 239.3 235.4 55.9 27.2 223.1 — Effect of: Change in cash flow assumptions 5.2 18.7 9.1 2.0 12.2 — Actual variances from expected experience 7.2 (4.2) 3.0 1.6 (25.3) — Adjusted balance at January 1, 2022 251.7 249.9 68.0 30.8 210.0 — Issuances (3) 12.5 28.0 — 6.3 12.0 5.3 Interest accruals (3) 6.7 9.0 3.3 1.1 5.9 — Net premiums collected (5) (25.0) (21.5) (5.8) (5.8) (22.8) (5.3) December 31, 2022 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of changes in discount rate assumptions (30.8) (30.7) 2.8 (2.7) (37.7) — Balance at December 31, 2022 215.1 234.7 68.3 29.7 167.4 — Present Value of Expected Future Policy Benefits Balance at January 1, 2022 (7) 660.4 411.5 1,172.7 102.9 590.6 129.1 January 1, 2022 balance at original discount rate (7) 566.1 360.0 802.6 86.6 584.2 115.7 Effect of: Changes in cash flow assumptions 5.2 21.5 11.0 2.0 13.8 — Actual variances from expected experience 7.7 (4.7) 3.6 1.4 (30.0) 0.4 Adjusted balance at January 1, 2022 579.0 376.8 817.2 90.0 568.0 116.1 Issuances 12.4 28.3 — 6.4 12.0 5.3 Interest accruals 18.0 14.4 47.4 3.4 15.0 4.3 Benefit payments (6) (27.5) (18.5) (59.4) (1.2) (57.9) (12.3) December 31, 2022 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of changes in discount rate assumptions (88.3) (54.0) 62.3 (19.2) (105.4) (10.1) Balance at December 31, 2022 493.6 347.0 867.5 79.4 431.7 103.3 Net liability for future policy benefits 278.4 112.2 799.3 49.6 264.4 103.3 Less: Reinsurance recoverable (63.1) (15.3) (0.8) — (3.4) (3.2) Net liability for future policy benefits, after reinsurance recoverable 215.3 96.9 798.5 49.6 261.0 100.1 Impact of flooring on net liability for future policy benefits 1.1 0.2 — — — — Net liability for future policy benefits at December 31, 2022 $ 216.4 $ 97.1 $ 798.5 $ 49.6 $ 261.0 $ 100.1 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2022, the net LFPB for Supplemental Health was $101.8 million for cancer, $21.8 million for accident, $23.1 million for disability and $114.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. (7) Whole Life, Term Life, and Supplemental Health beginning balance at January 1, 2022 includes reserves acquired from Madison National Life Insurance Company, Inc. on January 1, 2022. The balances of and changes in LFPB (including a summary of the balance and changes in the LFPB on January 1, 2021 due to adoption of ASU 2018-12) as of and for the year ended December 31, 2021 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Change in cash flow assumptions, effect of decrease of the DPL — — — — — — Adjustment for removal of related balances in AOCI — — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 Present Value of Expected Net Premiums Balance at January 1, 2021 $ 176.5 $ 244.1 $ 78.0 $ 25.4 $ 233.0 $ — January 1, 2021 balance at original discount rate 143.5 200.8 55.2 22.0 218.2 — Effect of: Change in cash flow assumptions 2.4 (4.5) (3.3) — (1.8) — Actual variances from expected experience 8.8 6.9 6.3 1.0 6.3 — Adjusted balance at January 1, 2021 154.7 203.2 58.2 23.0 222.7 — Issuances (3) 13.3 29.8 — 10.2 13.0 3.7 Interest accruals (4) 6.2 7.9 3.2 0.8 5.9 — Net premiums collected (5) (16.6) (19.8) (5.6) (6.8) (24.1) (3.7) December 31, 2021 balance at original discount rate 157.6 221.1 55.8 27.2 217.5 — Effect of changes in discount rate assumptions 25.4 32.0 18.8 2.5 4.0 — Balance at December 31, 2021 183.0 253.1 74.6 29.7 221.5 — Present Value of Expected Future Policy Benefits Balance at January 1, 2021 507.1 364.7 1,269.3 95.0 626.9 136.5 January 1, 2021 balance at original discount rate 362.5 294.0 813.5 73.4 589.1 115.9 Effect of: Changes in cash flow assumptions 2.8 (4.8) (3.6) — (3.0) — Actual variances from expected experience 8.7 7.2 6.6 1.1 6.2 (0.4) Adjusted balance at January 1, 2021 374.0 296.4 816.5 74.5 592.3 115.5 Issuances 13.3 29.8 — 10.2 13.0 3.7 Interest accruals 17.1 12.0 47.9 2.9 15.7 4.5 Benefit payments (5) (18.1) (18.7) (61.9) (1.0) (48.4) (12.1) December 31, 2021 balance at original discount rate 386.3 319.5 802.5 86.6 572.6 111.6 Effect of changes in discount rate assumptions 114.4 51.1 370.2 16.3 8.0 13.1 Balance at December 31, 2021 500.7 370.6 1,172.7 102.9 580.6 124.7 Net liability for future policy benefits 317.7 117.6 1,098.1 73.2 359.1 124.7 Less: Reinsurance recoverable (0.5) (5.5) (1.1) (0.2) — — Net liability for future policy benefits, after reinsurance recoverable $ 317.2 $ 112.1 $ 1,097.0 $ 73.0 $ 359.1 $ 124.7 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2021, the net LFPB for Supplemental Health was $140.8 million for cancer, $28.7 million for accident, $29.3 million for disability and $160.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. The following table summarizes the amount of revenue and interest related to traditional and limited-payment contracts recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss): ($ in millions) Gross premiums or assessments Gross premiums or assessments Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 7.2 $ 7.0 $ 20.5 $ 19.3 Term life 11.7 11.3 33.9 31.6 Experience life 8.1 8.4 24.2 25.2 Limited-pay whole life 2.2 2.0 5.5 6.3 Supplemental health 30.0 30.4 89.7 91.7 SPIA (life contingent) 0.9 0.9 4.5 4.2 Total $ 60.1 $ 60.0 $ 178.3 $ 178.3 ($ in millions) Interest expense Interest expense Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 3.0 $ 2.8 $ 8.8 $ 8.4 Term life 1.2 1.0 3.6 3.2 Experience life 10.9 11.1 32.8 33.2 Limited-pay whole life 0.6 0.6 1.9 1.8 Supplemental health 2.1 2.2 6.4 6.9 SPIA (life contingent) 1.1 1.1 3.3 3.3 Total $ 18.9 $ 18.8 $ 56.8 $ 56.8 The following table provides the amount of undiscounted and discounted expected gross premiums and expected future benefits and expenses for traditional and limited-payment contracts: ($ in millions) As of September 30, 2023 As of December 31, 2022 Undiscounted Discounted Undiscounted Discounted Whole life Expected future gross premiums $ 473.9 $ 323.6 $ 469.0 $ 322.5 Expected future benefits and expenses 1,138.5 591.2 1,121.4 580.4 Term life Expected future gross premiums 757.0 471.7 739.3 464.2 Expected future benefits and expenses 704.2 411.4 678.0 401.0 Experience Life Expected future gross premiums 542.1 301.8 569.6 315.5 Expected future benefits and expenses 1,713.6 796.4 1,755.4 805.2 Limited-pay whole life Expected future gross premiums 63.3 48.2 60.8 46.5 Expected future benefits and expenses 238.3 104.3 226.8 98.6 Supplemental health Expected future gross premiums 1,639.2 1,206.3 1,615.5 1,208.1 Expected future benefits and expenses 713.5 517.2 761.4 563.6 SPIA (life contingent) Expected future gross premiums — — — — Expected future benefits and expenses 156.7 111.9 157.7 113.4 The following table provides the weighted-average durations of LFPB, in years: As of September 30, 2023 2022 Whole life 17.8 17.7 Term life 16.4 15.8 Experience life 10.4 10.7 Limited-pay whole life 22.2 21.3 Supplemental health 10.4 9.9 SPIA (life contingent) 7.6 7.7 The following table provides ranges of the weighted-average interest rates for LFPB: As of September 30, 2023 2022 Whole life Interest accretion rate 1.7% - 4.9% 1.7% - 5.0% Current discount rate 5.5% - 5.9% 4.9% - 5.4% Term life Interest accretion rate 4.2% - 4.3% 4.1% - 4.3% Current discount rate 5.9% - 5.9% 5.5% - 5.5% Experience life Interest accretion rate 6.1 % 6.1 % Current discount rate 5.9 % 5.5 % Limited-pay whole life Interest accretion rate 3.9 % 3.9 % Current discount rate 5.9 % 5.4 % Supplemental health Interest accretion rate 1.7% - 2.7% 1.7% - 2.7% Current discount rate 5.9% - 6.1% 5.4% - 5.8% SPIA (life contingent) Interest accretion rate 1.7% - 4.1% 1.7% - 4.0% Current discount rate 5.8% - 5.8% 5.4% - 5.4%
Schedule of Deferred Policy Acquisition Costs	The following table summarizes the balance of and changes in DAC on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 DAC and Deferred Sales Inducements The following tables roll-forward DAC for the periods indicated: ($ in millions) Three Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 21.6 $ 31.4 $ 5.7 $ 7.0 $ 16.1 $ 7.0 $ 217.2 Capitalizations 0.7 1.5 0.1 0.4 0.6 0.7 3.7 Amortization expense (0.3) (0.8) (0.1) (0.1) (0.2) (0.2) (3.6) Experience adjustment (0.1) (0.1) — (0.1) (0.1) — (2.3) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Nine Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 Capitalizations 2.0 4.3 0.2 0.9 1.8 2.0 11.4 Amortization expense (0.9) (2.2) (0.3) (0.3) (0.7) (0.5) (11.0) Experience adjustment (0.1) (0.1) — (0.1) (0.1) (0.2) (6.5) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Year Ended December 31, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of year $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 Capitalizations 3.0 5.0 0.2 1.4 2.5 1.8 15.5 Amortization expense (1.2) (2.5) (0.4) (0.3) (0.8) (0.5) (15.8) Experience adjustment — — — — — — (1.9) Balance, end of year $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 ($ in millions) Year Ended December 31, 2021 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 Capitalizations 2.4 4.2 0.2 1.5 1.7 1.1 17.3 Amortization expense (1.1) (2.3) (0.4) (0.3) (0.8) (0.5) (16.0) Experience adjustment — — — — (0.1) — (1.1) Balance, end of year December 31, 2021 $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 The following table presents a reconciliation of DAC to the Consolidated Balance Sheets: ($ in millions) September 30, 2023 December 31, 2022 Whole life $ 21.9 $ 20.9 Term life 32.0 30.0 Experience life 5.7 5.8 Limited pay whole life 7.2 6.7 Indexed universal life 16.4 15.4 Supplemental health 7.5 6.2 Total annuities 215.0 221.1 Reconciling item (1) 29.2 24.5 Total $ 334.9 $ 330.6 (1) Reconciling item relates to DAC associated with the Property & Casualty reporting segment.
Schedule of Market Risk Benefit, Activity	The following table summarizes the balance of and changes in the net liability position of MRBs on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Balance, end of year December 31, 2020 $ 0.1 Adjustment for the difference between carrying amount and fair value, except for the difference due to instrument-specific credit risk 6.8 Adjustment for cumulative effect of changes in the instrument-specific credit risk at issuance 1.7 Total adjustment for the difference between carrying amount and fair value 8.5 Balance, beginning of year January 1, 2021 8.6 Less: Reinsurance recoverable — Balance, beginning of year January 1, 2021, net of reinsurance $ 8.6 The following table presents the balances of and changes in MRBs associated with deferred variable annuities as of and for the three and nine months ended September 30, 2023 and 2022, respectively: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Balance, beginning of period $ (3.6) $ 4.6 $ 0.2 $ 4.8 Balance, beginning of period, before effects of changes in the instrument-specific credit risk (3.2) 4.2 — 2.0 Changes in market risk benefits (1) (1.3) (1.6) (4.5) 0.6 Balance, end of period (2) $ (4.5) $ 2.6 $ (4.5) $ 2.6 Effect of changes in the instrument-specific credit risk — 0.3 — 0.3 Balance, end of period $ (4.5) $ 2.9 $ (4.5) $ 2.9 Net amount at risk (3) $ 37.6 $ 79.9 $ 37.6 $ 79.9 Weighted-average attained age of contract holders 63 63 63 63 (1) Reflects interest accruals and effect of changes in interest rates, equity markets, equity index volatility and future assumptions. (2) Balance, end of period, before the effect of changes in the instrument-specific credit risk. (3) Net amount at risk represents the current guaranteed benefit less current account balance at the reporting date. The following table presents MRBs by amounts in an asset position and amounts in a liability position. The net liabilities (assets) are included in Policyholders' account balances presented in the Consolidated Balance Sheets. ($ in millions) As of September 30, 2023 As of December 31, 2022 (Asset) Liability Net (Asset) Liability Net Deferred variable annuities $ (6.4) $ 1.9 $ (4.5) $ (4.4) $ 4.7 $ 0.3
Schedule of Changes in Accounting Policies	The following table presents the effect of the after-tax transition adjustments on consolidated shareholders' equity due to adoption of ASU 2018: ($ in millions) January 1, 2021 AOCI Retained Earnings Liability for future policy benefits $ (496.3) $ (0.2) Deferred policy acquisition costs 71.1 — Deferred sales inducements — — Market risk benefits (1.3) (5.4) Total $ (426.5) $ (5.6)

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Components of Net Investment	The components of net investment income for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities $ 68.7 $ 63.9 $ 201.6 $ 184.5 Equity securities 1.3 1.8 4.7 7.1 Limited partnership interests 20.5 5.1 40.6 31.3 Short-term and other investments 4.6 2.8 11.6 8.2 Investment expenses (3.3) (2.7) (9.5) (7.8) Net investment income - investment portfolio 91.8 70.9 249.0 223.3 Investment income - deposit asset on reinsurance 27.1 26.7 78.8 77.4 Total net investment income $ 118.9 $ 97.6 $ 327.8 $ 300.7
Schedule of Net Investment Gains (Losses)	Net investment gains (losses) for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities $ (3.4) $ (10.7) $ (20.5) $ (15.9) Equity securities (2.1) (4.4) (6.6) (32.5) Short-term investments and other (2.9) 2.3 (2.6) 4.6 Net investment losses $ (8.4) $ (12.8) $ (29.7) $ (43.8) The breakdown of net investment gains (losses) by transaction type for the following periods were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Credit loss impairments $ — $ (0.6) $ (0.5) $ (2.8) Intent-to-sell impairments (0.6) (6.2) (6.7) (7.6) Total impairments (0.6) (6.8) (7.2) (10.4) Sales and other, net (3.5) (3.9) (25.2) (3.9) Change in fair value - equity securities (1.4) (4.4) 5.3 (34.1) Change in fair value and gains (losses) realized on settlements - derivatives (2.9) 2.3 (2.6) 4.6 Net investment losses $ (8.4) $ (12.8) $ (29.7) $ (43.8)
Schedule of Allowance for Credit Loss Impairments on Fixed Maturity Securities	The following table presents changes in the allowance for credit loss impairments on fixed maturity securities classified as available for sale for the category of other asset-backed securities (no other categories of fixed maturity securities have an allowance for credit loss impairments): ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Beginning balance $ 1.2 $ 9.5 $ 1.2 $ 7.7 Credit losses on fixed maturity securities for which credit losses were not previously reported — — 0.5 — Net increase related to credit losses previously reported — 0.6 — 2.8 Reduction of credit allowances related to sales — — — — Write-offs — — (0.5) (0.4) Ending balance $ 1.2 $ 10.1 $ 1.2 $ 10.1
Schedule of Available-for-sale Securities Reconciliation	Amortized cost, net, gross unrealized investment gains (losses) and fair values of all fixed maturity securities in the portfolio were as follows: ($ in millions) Amortized Gross Unrealized Gross Unrealized Fair September 30, 2023 Fixed maturity securities U.S. Government and federally sponsored agency obligations: (1) Mortgage-backed securities $ 687.2 $ 0.5 $ 97.2 $ 590.5 Other, including U.S. Treasury securities 449.6 0.3 85.0 364.9 Municipal bonds 1,334.1 11.2 159.8 1,185.5 Foreign government bonds 26.1 — 1.6 24.5 Corporate bonds 1,982.7 7.2 304.6 1,685.3 Other asset-backed securities 1,161.9 3.6 54.6 1,110.9 Totals $ 5,641.6 $ 22.8 $ 702.8 $ 4,961.6 December 31, 2022 Fixed maturity securities U.S. Government and federally sponsored agency obligations: (1) Mortgage-backed securities $ 638.2 $ 1.3 $ 69.1 $ 570.4 Other, including U.S. Treasury securities 410.0 0.5 67.8 342.7 Municipal bonds 1,380.9 16.9 128.1 1,269.7 Foreign government bonds 35.1 — 1.6 33.5 Corporate bonds 2,161.2 12.7 272.2 1,901.7 Other asset-backed securities 1,131.5 3.6 68.1 1,067.0 Totals $ 5,756.9 $ 35.0 $ 606.9 $ 5,185.0 (1) Fair value includes securities issued by Federal National Mortgage Association (FNMA) of $323.6 million and $330.8 million; Federal Home Loan Mortgage Corporation (FHLMC) of $305.8 million and $273.3 million; and Government National Mortgage Association (GNMA) of $78.4 million and $86.2 million as of September 30, 2023 and December 31, 2022, respectively.
Schedule of Fair Value and Gross Unrealized Losses of Fixed Maturity Securities and Equity Securities in an Unrealized Loss Position	($ in millions) 12 Months or Less More than 12 Months Total Fair Value Gross Fair Value Gross Fair Value Gross September 30, 2023 Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 137.1 $ 5.3 $ 438.2 $ 91.9 $ 575.3 $ 97.2 Other 91.9 3.7 268.5 81.3 360.4 85.0 Municipal bonds 331.1 13.7 729.9 146.1 1,061.0 159.8 Foreign government bonds 1.4 0.1 23.1 1.5 24.5 1.6 Corporate bonds 204.9 18.6 1,120.8 286.0 1,325.7 304.6 Other asset-backed securities 135.1 2.6 804.4 52.0 939.5 54.6 Total $ 901.5 $ 44.0 $ 3,384.9 $ 658.8 $ 4,286.4 $ 702.8 Number of positions with a gross unrealized loss 669 2,474 3,143 Fair value as a percentage of total fixed maturity securities at fair value 18.2 % 68.2 % 86.4 % December 31, 2022 Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 458.3 $ 54.4 $ 52.6 $ 14.7 $ 510.9 $ 69.1 Other 242.7 34.1 65.8 33.7 308.5 67.8 Municipal bonds 911.6 113.7 42.2 14.4 953.8 128.1 Foreign government bonds 32.7 1.4 0.4 0.2 33.1 1.6 Corporate bonds 1,345.0 221.1 148.9 51.1 1,493.9 272.2 Other asset-backed securities 543.4 37.1 424.3 31.0 967.7 68.1 Total $ 3,533.7 $ 461.8 $ 734.2 $ 145.1 $ 4,267.9 $ 606.9 Number of positions with a gross unrealized loss 2,515 587 3,102 Fair value as a percentage of total fixed maturity securities at fair value 68.2 % 14.2 % 82.4 %
Schedule of Distribution of the Company's Fixed Maturity Portfolio by Estimated Expected Maturity	With regards to fixed maturity securities that had gross unrealized losses more than 12 months, the number of positions by their respective credit ratings were as follows: Number of Positions September 30, 2023 December 31, 2022 Credit Rating AAA 241 67 AA 1,030 217 A 434 94 BBB 474 93 BB 159 68 B 64 31 CCC or lower 7 2 Not rated 65 15 Totals: 2,474 587 The following table presents the distribution of the Company’s fixed maturity securities portfolio by estimated expected maturity. Estimated expected maturities differ from contractual maturities, reflecting assumptions regarding borrowers' utilization of the right to call or prepay obligations with or without call or prepayment penalties. For structured securities, estimated expected maturities consider broker-dealer survey prepayment assumptions and are verified for consistency with the interest rate and economic environments. ($ in millions) Percent of Total Fair Value September 30, 2023 September 30, 2023 December 31, 2022 Fair Amortized Estimated expected maturity: Due in 1 year or less 5.6 % 4.4 % $ 278.3 $ 287.8 Due after 1 year through 5 years 27.1 26.3 1,343.4 1,420.7 Due after 5 years through 10 years 27.4 27.9 1,357.3 1,480.7 Due after 10 years through 20 years 23.9 25.0 1,187.1 1,417.8 Due after 20 years 16.0 16.4 795.5 1,034.6 Total 100.0 % 100.0 % $ 4,961.6 $ 5,641.6 Average option-adjusted duration, in years 6.1 6.4
Schedule of Proceeds Received From Sales of Fixed Maturities and Equity Securities	Proceeds received from sales of fixed maturity and equity securities, each determined using the specific identification method, and gross gains and gross losses realized as a result of those sales for each period were as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Fixed maturity securities Proceeds received $ 135.2 $ 164.6 $ 341.4 $ 529.9 Gross gains realized 1.4 1.1 2.0 4.7 Gross losses realized (2.8) (5.0) (13.9) (10.2) Equity securities Proceeds received $ 6.8 $ 0.2 $ 16.6 $ 6.0 Gross gains realized — — — 1.7 Gross losses realized (0.5) — (11.8) (0.1)
Schedule of Reconciliation of Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities and Equity Securities	The following table reconciles net unrealized investment gains (losses) on fixed maturity securities, net of tax, included in AOCI: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net unrealized investment gains (losses) Beginning of period $ (393.7) $ (281.8) $ (449.6) $ 347.1 Change in net unrealized investment gains (143.7) (223.4) (101.3) (856.5) Reclassification of net investment losses 2.7 8.4 16.2 12.6 End of period $ (534.7) $ (496.8) $ (534.7) $ (496.8)
Schedule of Carrying Amounts of Equity Method Limited Partnership Interests	The carrying amounts of EMA limited partnership interests were as follows: ($ in millions) September 30, 2023 December 31, 2022 Commercial mortgage loan funds $ 671.6 $ 593.6 Real estate equity funds 111.2 71.3 Private equity funds 83.9 76.3 Infrastructure equity funds 77.9 72.0 Infrastructure debt funds 63.4 60.0 Other funds (1) 134.6 110.5 Total $ 1,142.6 $ 983.7 (1) Other funds consist primarily of limited partnership interests in corporate mezzanine, venture capital and private credit funds.
Schedule of Offsetting Assets and Liability	The following table presents instruments that were subject to a master netting arrangement for the Company. ($ in millions) Gross Net Amounts Gross Amounts Not Offset Gross Financial Cash Net September 30, 2023 Asset derivatives: Free-standing derivatives $ 9.3 $ — $ 9.3 $ — $ 9.2 $ 0.1 December 31, 2022 Asset derivatives: Free-standing derivatives $ 6.8 $ — $ 6.8 $ — $ 5.9 $ 0.9

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of Company's Fair Value Hierarchy Measured at Recurring Basis	The following table presents the Company's fair value hierarchy for financial assets and financial liabilities measured and carried at fair value on a recurring basis. During the nine months ended September 30, 2023 and 2022, there were no transfers between Level 1 and Level 2. As of September 30, 2023, Level 3 invested assets comprised 9.2% of the Company’s total investment portfolio at fair value. ($ in millions) Carrying Fair Fair Value Measurements at Level 1 Level 2 Level 3 September 30, 2023 Financial Assets Investments Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 590.5 $ 590.5 $ — $ 588.0 $ 2.5 Other, including U.S. Treasury securities 364.8 364.8 44.2 320.6 — Municipal bonds 1,185.6 1,185.6 — 1,115.9 69.7 Foreign government bonds 24.5 24.5 — 24.5 — Corporate bonds 1,685.3 1,685.3 10.0 1,370.1 305.2 Other asset-backed securities 1,110.9 1,110.9 — 1,012.9 98.0 Total fixed maturity securities 4,961.6 4,961.6 54.2 4,432.0 475.4 Equity securities 77.0 77.0 17.2 57.6 2.2 Short-term investments 113.5 113.5 113.5 — — Other investments 43.1 43.1 — 43.1 — Totals $ 5,195.2 $ 5,195.2 $ 184.9 $ 4,532.7 $ 477.6 Separate Account variable annuity assets (1) $ 2,974.0 $ 2,974.0 $ 2,974.0 $ — $ — Financial Liabilities (2) $ 80.3 $ 80.3 $ — $ 2.0 $ 78.3 December 31, 2022 Financial Assets Investments Fixed maturity securities U.S. Government and federally Mortgage-backed securities $ 570.4 $ 570.4 $ — $ 567.8 $ 2.6 Other, including U.S. Treasury securities 342.6 342.6 24.6 318.0 — Municipal bonds 1,269.7 1,269.7 — 1,215.3 54.4 Foreign government bonds 33.6 33.6 — 33.6 — Corporate bonds 1,901.7 1,901.7 12.2 1,628.2 261.3 Other asset-backed securities 1,067.0 1,067.0 — 962.0 105.0 Total fixed maturity securities 5,185.0 5,185.0 36.8 4,724.9 423.3 Equity securities 99.6 99.6 23.3 74.3 2.0 Short-term investments 109.4 109.4 109.4 — — Other investments 38.6 38.6 — 38.6 — Totals $ 5,432.6 $ 5,432.6 $ 169.5 $ 4,837.8 $ 425.3 Separate Account (variable annuity) assets (1) $ 2,792.3 $ 2,792.3 $ 2,792.3 $ — $ — Financial Liabilities (2) $ 92.5 $ 92.5 $ — $ 1.2 $ 91.3 (1) Separate Account variable annuity assets represent contractholder funds invested in various actively traded mutual funds that have daily quoted net asset values that are readily determinable for identical assets that the Company can access. Separate Account variable annuity liabilities are equal to the estimated fair value of the Separate Account variable annuity assets. (2) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets.
Schedule of Table for Reconciliations for All Level 3 Assets Measured at Fair Value on a Recurring Basis	The reconciliation for all financial assets and financial liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) were as follows: ($ in millions) Financial Assets Financial Liabilities (1) Municipal Corporate Mortgage-Backed and Other Asset- Backed Securities (2) Total Equity Total Beginning balance, July 1, 2023 $ 63.9 $ 311.5 $ 101.4 $ 476.8 $ 2.0 $ 478.8 $ 83.6 Transfers into Level 3 (3) — — — — — — — Transfers out of Level 3 (3) — (3.7) — (3.7) — (3.7) — Total gains or losses Net gains/losses included in net income — — — — 0.2 0.2 (3.2) Net unrealized gains/losses included in OCI 5.9 (12.8) 2.0 (4.9) — (4.9) 0.4 Purchases — 17.5 1.7 19.2 — 19.2 — Issuances — — — — — — 2.0 Sales — — — — — — — Settlements — — — — — — — Paydowns, maturities and distributions (0.1) (7.3) (4.6) (12.0) — (12.0) (4.5) Ending balance, September 30, 2023 $ 69.7 $ 305.2 $ 100.5 $ 475.4 $ 2.2 $ 477.6 $ 78.3 Beginning balance, January 1, 2023 $ 54.4 $ 261.3 $ 107.6 $ 423.3 $ 2.0 $ 425.3 $ 91.3 Transfers into Level 3 (3) — 36.1 0.8 36.9 — 36.9 — Transfers out of Level 3 (3) — (3.7) — (3.7) — (3.7) — Total gains or losses Net gains/losses included in net income — — — — 0.2 0.2 (5.6) Net unrealized gains/losses included in OCI 6.5 (14.1) 0.9 (6.7) — (6.7) (0.3) Purchases 9.5 43.2 1.9 54.6 — 54.6 — Issuances — — — — — 6.3 Sales — (7.7) (7.7) — (7.7) — Settlements — — — — — — Paydowns, maturities and distributions (0.7) (9.9) (10.7) (21.3) — (21.3) (13.4) Ending balance, September 30, 2023 $ 69.7 $ 305.2 $ 100.5 $ 475.4 $ 2.2 $ 477.6 $ 78.3 (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. (2) Includes U.S. Government and federally sponsored agency obligations for mortgage-backed securities and other asset-backed securities. (3) Transfers into and out of Level 3 during the three and nine months ended September 30, 2023 and 2022 were related to changes in the primary pricing source and changes in observability of external information used in determining fair value. The Company's policy is to recognize transfers into and out of the levels as having occurred at the end of the reporting period in which the transfers were determined. ($ in millions) Financial Assets Financial (1) Municipal Corporate Mortgage-Backed and Other Asset- Backed Securities (2) Total Equity Total Beginning balance, July 1, 2022 $ 51.0 $ 270.5 $ 97.1 $ 418.6 $ 1.4 $ 420.0 $ 97.8 Transfers into Level 3 (3) — 20.5 12.2 32.7 0.8 33.5 — Transfers out of Level 3 (3) — (34.8) — (34.8) — (34.8) — Total gains or losses Net gains/losses included in net income — — (0.8) (0.8) (0.1) (0.9) — Net investment (gains) losses included in net income related to financial liabilities — — — — — — (6.3) Net unrealized gains/losses included in OCI (5.3) (7.4) (3.9) (16.6) — (16.6) — Purchases 0.2 8.4 7.9 16.5 — 16.5 — Issuances — — — — — — 2.7 Sales — — — — — — — Settlements — — — — — — — Paydowns, maturities and distributions 7.4 (17.4) (5.3) (15.3) (0.1) (15.4) (1.4) Ending balance, September 30, 2022 $ 53.3 $ 239.8 $ 107.2 $ 400.3 $ 2.0 $ 402.3 $ 92.8 Beginning balance, January 1, 2022 $ 60.8 $ 210.3 $ 98.9 $ 370.0 $ 1.4 $ 371.4 $ 111.4 Transfers into Level 3 (3) — 144.0 34.5 178.5 0.8 179.3 — Transfers out of Level 3 (3) (3.2) (34.9) (4.8) (42.9) — (42.9) — Total gains or losses Net gains/losses included in net income — — (3.1) (3.1) (0.1) (3.2) — Net investment (gains) losses included in net income related to financial liabilities — — — — — — (13.9) Net unrealized gains/losses included in OCI (11.6) (18.7) (11.3) (41.6) — (41.6) (2.4) Purchases 0.2 13.3 7.9 21.4 — 21.4 — Issuances — — — — — — 4.8 Sales — — (2.1) (2.1) — (2.1) — Settlements — — — — — — — Paydowns, maturities and distributions 7.1 (74.2) (12.8) (79.9) (0.1) (80.0) (7.1) Ending balance, September 30, 2022 $ 53.3 $ 239.8 $ 107.2 $ 400.3 $ 2.0 $ 402.3 $ 92.8 (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. (2) Includes U.S. Government and federally sponsored agency obligations for mortgage-backed securities and other asset-backed securities. (3) Transfers into and out of Level 3 during the three and nine months ended September 30, 2022 were attributable to changes in the availability of observable market information for individual fixed maturity securities. The Company's policy is to recognize transfers into and out of the levels as having occurred at the end of the reporting period in which the transfers were determined.
Schedule of Fair Value Measurement Inputs and Valuation Techniques	Level 3 Assets and Liabilities by Price Source The table below presents the balances of Level 3 assets and liabilities measured at fair value with their corresponding pricing sources (in millions, 2022 information recast for the adoption of LDTI): ($ in millions) Total Internal External September 30, 2023 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.5 $ — $ 2.5 Municipal bonds 69.7 — 69.7 Corporate bonds 305.2 47.4 257.8 Other asset-backed securities 98.0 — 98.0 Total fixed maturity securities 475.4 47.4 428.0 Equity securities 2.2 — 2.2 Totals $ 477.6 $ 47.4 $ 430.2 Financial Liabilities (1) $ 78.3 $ 78.3 $ — December 31, 2022 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.6 $ — $ 2.6 Municipal bonds 54.4 — 54.4 Corporate bonds 261.3 9.5 251.8 Other asset-backed securities 105.0 — 105.0 Total fixed maturity securities 423.3 9.5 413.8 Equity securities 2.0 — 2.0 Totals $ 425.3 $ 9.5 $ 415.8 Financial Liabilities (1) $ 91.3 $ 91.3 $ — (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. External pricing sources for securities represent prices from prior transactions or unadjusted third-party pricing information where pricing inputs are not readily available. Quantitative Information about Level 3 Fair Value Measurements The following table provides quantitative information about the significant unobservable inputs for recurring fair value measurements categorized with Level 3. ($ in millions) Fair Value as of September 30, 2023 Valuation Technique(s) Unobservable Inputs Range (Weighted Average) and Single Point Best Estimate (1) Financial Assets Corporate bonds $ 47.4 discounted cash flow yield 8.3% - 17.4% Financial Liabilities Derivatives embedded in fixed indexed annuity products $ 82.8 discounted cash flow lapse rate 5.4% mortality multiplier (2) 67.8% option budget 0.9% - 3.8% non-performance adjustment (3) 5.0% Net MRBs $ (4.5) discounted cash flow lapse rate 5.9% mortality multiplier (2) 67.8% (1) When a range of unobservable inputs is not readily available, the Company uses a single point best estimate. (2) Mortality multiplier is applied to the Annuity 2000 table. (3) Determined as a percentage of the risk-free rate. The following table summarizes the ranges of actual experience and expected experience for mortality and lapses of LFPB: September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.7 % 0.1% - 0.6% 1.7 % 0.1 % N.M. Expected experience 0.7 % 0.1% - 1.7% 1.6 % 0.3 % N.M. Lapses Actual experience 3.6 % 5.3% - 7.3% 3.2 % 4.3 % N.M. Expected experience 4.7 % 5.7% - 32.2% 3.1 % 5.3 % N.M. September 30, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.8 % 0.1% - 0.3% 1.6 % 0.2 % N.M. Expected experience 0.7 % 0.1% - 0.8% 1.4 % 0.2 % N.M. Lapses Actual experience 3.1 % 5.6% - 63.0% 3.4 % 4.0 % N.M. Expected experience 5.8 % 6.6% - 7.3% 3.2 % 7.5 % N.M.
Schedule of Fair Value Assets and Liabilities Measured on Nonrecurring Basis	The following table presents the carrying amount, fair value and fair value hierarchy of these financial assets and financial liabilities. ($ in millions) Carrying Fair Fair Value Measurements at Level 1 Level 2 Level 3 September 30, 2023 Financial Assets Other investments $ 181.6 $ 185.0 $ — $ — $ 185.0 Deposit asset on reinsurance 2,515.7 2,070.3 — — 2,070.3 Financial Liabilities Investment contract and future policy benefit reserves, fixed annuity contracts 4,920.8 4,821.1 — — 4,821.1 Investment contract and future policy benefit reserves, account values on life contracts 116.8 112.8 — — 112.8 Other policyholder funds 915.9 915.9 — 904.9 11.0 Reverse repurchase agreements 0.2 0.4 — 0.4 — Short-term debt — — — — — Long-term debt 546.1 541.1 — 541.1 — December 31, 2022 Financial Assets Other investments $ 167.4 $ 170.9 $ — $ — $ 170.9 Deposit asset on reinsurance 2,516.6 2,207.2 — — 2,207.2 Financial Liabilities Investment contract and future policy benefit reserves, fixed annuity contracts 4,988.5 4,901.3 — — 4,901.3 Investment contract and future policy benefit reserves, account values on life contracts 111.9 107.7 — — 107.7 Other policyholder funds 863.0 863.0 — 810.7 52.3 Reverse repurchase agreements 70.2 73.3 — 73.3 — Short-term debt 249.0 249.0 — — 249.0 Long-term debt 249.0 240.5 — 240.5 —

Short-Duration Insurance Cont_2

Short-Duration Insurance Contracts (Tables)	9 Months Ended
	Sep. 30, 2023
Insurance Loss Reserves [Abstract]
Schedule of Reconciliation of Property and Casualty Unpaid Claims and Claim Expense	The following table is a summary reconciliation of the beginning and ending Property & Casualty unpaid claims and claim expense reserves for the periods indicated. The table presents reserves on both a gross and net (after reinsurance) basis. The total net Property & Casualty insurance claims and claim expense incurred amounts are reflected in the Consolidated Statements of Operations and Comprehensive Income (Loss). The end of period gross reserves (before reinsurance balances and reinsurance recoverable balances) are reflected on a gross basis in the Consolidated Balance Sheets. ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Property & Casualty Beginning gross reserves $ 415.8 $ 378.4 $ 388.7 $ 362.4 Less: reinsurance recoverables 104.3 109.8 100.8 110.3 Net reserves, beginning of period (1) 311.5 268.6 287.9 252.1 Incurred claims and claim expenses: Claims occurring in the current period 149.2 120.3 430.0 372.8 Increase (decrease) in estimated reserves for claims occurring in prior periods (2) — 2.0 — 8.0 Total claims and claim expenses incurred 149.2 122.3 430.0 380.8 Claims and claim expense payments for claims occurring during: Current period 115.9 102.8 246.7 221.1 Prior periods 30.9 29.7 157.3 153.4 Total claims and claim expense payments 146.8 132.5 404.0 374.5 Net reserves, end of period (1) 313.9 258.4 313.9 258.4 Plus: reinsurance recoverables 105.4 109.0 105.4 109.0 Ending gross reserves $ 419.3 $ 367.4 $ 419.3 $ 367.4 (1) Reserves net of expected reinsurance recoverables. (2) Shows the amounts by which the Company increased (decreased) its reserves in each of the periods indicated for claims occurring in previous periods to reflect subsequent information on such claims and changes in their projected final settlement costs - also known as prior years' reserve development. ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Group Benefits Beginning gross reserves $ 121.9 $ 130.2 $ 121.6 $ 125.4 Less: reinsurance recoverables 28.2 29.6 27.9 28.6 Net reserves, beginning of period (1) 93.7 100.6 93.7 96.8 Incurred claims and claim expenses: Claims occurring in the current period 20.0 20.7 61.0 65.6 Increase (decrease) in estimated reserves for claims occurring in prior periods (2) (7.6) (9.7) (15.5) (11.7) Total claims and claim expenses incurred 12.4 11.0 45.5 53.9 Claims and claim expense payments for claims occurring during: Current period 12.2 10.4 25.3 26.2 Prior periods 4.3 5.4 24.3 28.7 Total claims and claim expense payments 16.5 15.8 49.6 54.9 Net reserves, end of period (1) 89.6 95.8 89.6 95.8 Plus: reinsurance recoverables 27.5 28.0 27.5 28.0 Ending gross reserves $ 117.1 $ 123.8 $ 117.1 $ 123.8 (1) Reserves net of expected reinsurance recoverables. (2) Shows the amounts by which the Company increased (decreased) its reserves in each of the periods indicated for claims occurring in previous periods to reflect subsequent information on such claims and changes in their projected final settlement costs - also known as prior years' reserve development.
Schedule of Reconciliation of Net Incurred and Paid Claims Development To Liability for Claims and Claim Adjustment Expenses	($ in millions) As of September 30, 2023 As of December 31, 2022 Ending gross reserves Property & Casualty $ 419.3 $ 388.7 Group Benefits 117.1 121.6 Total short-duration insurance contracts 536.4 510.3 Other than short-duration (1) 50.2 53.7 Total unpaid claims and claims expenses $ 586.6 $ 564.0 (1)

Long-Duration Insurance Contr_2

Long-Duration Insurance Contracts (Tables)	9 Months Ended
	Sep. 30, 2023
Insurance [Abstract]
Schedule of Liability for Future Policy Benefit, Activity	The following table summarizes the balance of and changes in LFPB on January 1, 2021 due to adoption of ASU 2018-12. The impact of shifts between deferred profit liabilities (DPL) and LFPB for limited-payment products are presented as offsetting line items in the effect of net premiums exceeding gross premiums and the effect of decrease/increase of DPL. ($ in millions) Whole Life Term Life Experience Life Limited Pay Whole Life Supplemental Health (1) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables, end of year December 31, 2020 (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 (1) As of January 1, 2021, the net LFPB for Supplemental Health was $163.5 million for cancer, $31.2 million for accident, $32.0 million for disability and $188.8 million for other supplemental health policies. The balances of and changes in LFPB as of and for the three months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at July 1, 2023 $ 217.5 $ 240.3 $ 68.1 $ 31.7 $ 172.0 $ — July 1, 2023 balance at original discount rate 247.0 265.1 64.7 34.2 207.5 — Effect of: — — — — — — Change in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (1.2) 0.7 (0.3) — — Adjusted balance at July 1, 2023 247.8 263.9 65.4 33.9 207.5 — Issuances (3) 2.2 6.0 — 1.2 3.7 0.8 Interest accruals (4) 1.8 2.6 1.0 0.4 1.5 — Net premiums collected (5) (5.2) (6.3) (1.7) (1.5) (5.6) (0.8) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at July 1, 2023 507.1 360.6 871.5 85.3 426.6 103.6 July 1, 2023 balance at original discount rate 588.7 406.4 799.6 102.6 525.8 113.0 Effect of: Changes in cash flow assumptions — — — — — — Actual variances from expected experience 0.8 (0.3) 1.1 (0.3) (0.2) — Adjusted balance at July 1, 2023 589.5 406.1 800.7 102.3 525.6 113.0 Issuances 2.2 6.4 — 1.2 3.7 0.7 Interest accruals 4.8 3.9 11.7 1.0 3.6 1.1 Benefit payments (6) (5.3) (5.0) (16.0) (0.2) (15.7) (2.9) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the nine months ended September 30, 2023 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present value of expected net premiums: Balance at January 1, 2023 $ 215.1 $ 234.7 $ 68.3 $ 29.7 $ 167.4 $ — January 1, 2023 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of: — — — — — — Change in cash flow assumptions — (5.3) — — — — Actual variances from expected experience 2.6 (2.2) 1.4 1.0 0.3 — Adjusted balance at January 1, 2023 248.5 257.9 66.9 33.4 205.4 — Issuances (3) 7.6 19.0 — 3.3 13.6 4.2 Interest accruals (4) 5.4 7.8 2.8 1.0 4.5 — Net premiums collected (5) (14.9) (18.5) (5.0) (3.7) (16.4) (4.2) September 30, 2023 balance at original discount rate 246.6 266.2 64.7 34.0 207.1 — Effect of changes in discount rate assumptions (41.7) (38.1) (0.4) (3.6) (42.8) — Balance at September 30, 2023 204.9 228.1 64.3 30.4 164.3 — Present value of expected future policy benefits: Balance at January 1, 2023 493.6 347.0 867.5 79.4 431.7 103.3 January 1, 2023 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of: Changes in cash flow assumptions — (5.6) — — — — Actual variances from expected experience 2.7 0.4 2.0 1.2 (0.1) (0.5) Adjusted balance at January 1, 2023 584.6 395.8 807.2 99.8 537.0 112.9 Issuances 7.7 19.6 — 3.3 13.6 4.7 Interest accruals 14.2 11.4 35.5 2.9 10.8 3.3 Benefit payments (6) (15.3) (15.4) (46.3) (1.7) (44.2) (9.0) September 30, 2023 balance at original discount rate 591.2 411.4 796.4 104.3 517.2 111.9 Effect of changes in discount rate assumptions (123.5) (71.0) 11.0 (25.7) (118.8) (13.7) Balance at September 30, 2023 467.7 340.4 807.4 78.6 398.4 98.2 Net liability for future policy benefits 262.7 112.4 743.2 48.2 234.0 98.2 Less: Reinsurance recoverable (58.1) (16.9) (0.6) (0.1) (3.5) (3.3) Net liability for future policy benefits, after reinsurance recoverable 204.6 95.5 742.6 48.1 230.5 94.9 Impact of flooring on net liability for future policy benefits 0.5 0.1 — — — — Net liability for future policy benefits at September 30, 2023 $ 205.1 $ 95.6 $ 742.6 $ 48.1 $ 230.5 $ 94.9 (1) Experience Life contains both whole life and term elements. (2) As of September 30, 2023, the net LFPB for Supplemental Health was $88.5 million for cancer, $20.0 million for accident, $21.6 million for disability and $100.4 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. The balances of and changes in LFPB as of and for the year ended December 31, 2022 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Present Value of Expected Net Premiums Balance at January 1, 2022 (7) $ 260.7 $ 264.4 $ 74.6 $ 29.7 $ 226.7 $ — January 1, 2022 balance at original discount rate (7) 239.3 235.4 55.9 27.2 223.1 — Effect of: Change in cash flow assumptions 5.2 18.7 9.1 2.0 12.2 — Actual variances from expected experience 7.2 (4.2) 3.0 1.6 (25.3) — Adjusted balance at January 1, 2022 251.7 249.9 68.0 30.8 210.0 — Issuances (3) 12.5 28.0 — 6.3 12.0 5.3 Interest accruals (3) 6.7 9.0 3.3 1.1 5.9 — Net premiums collected (5) (25.0) (21.5) (5.8) (5.8) (22.8) (5.3) December 31, 2022 balance at original discount rate 245.9 265.4 65.5 32.4 205.1 — Effect of changes in discount rate assumptions (30.8) (30.7) 2.8 (2.7) (37.7) — Balance at December 31, 2022 215.1 234.7 68.3 29.7 167.4 — Present Value of Expected Future Policy Benefits Balance at January 1, 2022 (7) 660.4 411.5 1,172.7 102.9 590.6 129.1 January 1, 2022 balance at original discount rate (7) 566.1 360.0 802.6 86.6 584.2 115.7 Effect of: Changes in cash flow assumptions 5.2 21.5 11.0 2.0 13.8 — Actual variances from expected experience 7.7 (4.7) 3.6 1.4 (30.0) 0.4 Adjusted balance at January 1, 2022 579.0 376.8 817.2 90.0 568.0 116.1 Issuances 12.4 28.3 — 6.4 12.0 5.3 Interest accruals 18.0 14.4 47.4 3.4 15.0 4.3 Benefit payments (6) (27.5) (18.5) (59.4) (1.2) (57.9) (12.3) December 31, 2022 balance at original discount rate 581.9 401.0 805.2 98.6 537.1 113.4 Effect of changes in discount rate assumptions (88.3) (54.0) 62.3 (19.2) (105.4) (10.1) Balance at December 31, 2022 493.6 347.0 867.5 79.4 431.7 103.3 Net liability for future policy benefits 278.4 112.2 799.3 49.6 264.4 103.3 Less: Reinsurance recoverable (63.1) (15.3) (0.8) — (3.4) (3.2) Net liability for future policy benefits, after reinsurance recoverable 215.3 96.9 798.5 49.6 261.0 100.1 Impact of flooring on net liability for future policy benefits 1.1 0.2 — — — — Net liability for future policy benefits at December 31, 2022 $ 216.4 $ 97.1 $ 798.5 $ 49.6 $ 261.0 $ 100.1 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2022, the net LFPB for Supplemental Health was $101.8 million for cancer, $21.8 million for accident, $23.1 million for disability and $114.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. (6) Benefit payments represent the release of the present value, using the original discount rate, of the expected future policy benefits due to death, lapse/withdrawal and maturity payments based on revised expected assumptions. (7) Whole Life, Term Life, and Supplemental Health beginning balance at January 1, 2022 includes reserves acquired from Madison National Life Insurance Company, Inc. on January 1, 2022. The balances of and changes in LFPB (including a summary of the balance and changes in the LFPB on January 1, 2021 due to adoption of ASU 2018-12) as of and for the year ended December 31, 2021 were as follows: ($ in millions) Whole Life Term Life Experience Life (1) Limited-Pay Whole Life Supplemental Health (2) SPIA (life contingent) Balance, end of year December 31, 2020 $ 218.7 $ 93.2 $ 758.3 $ 51.3 $ 392.5 $ 115.9 Change in discount rate assumptions 111.5 27.3 433.0 18.2 23.0 20.6 Change in cash flow assumptions, effect of net premiums exceeding gross premiums 0.4 — — — — — Change in cash flow assumptions, effect of decrease of the DPL — — — — — — Adjustment for removal of related balances in AOCI — — — — — — Adjusted balance, beginning of year January 1, 2021 330.6 120.5 1,191.3 69.5 415.5 136.5 Less: Reinsurance recoverables (0.1) (5.4) (1.3) (0.1) — — Less: Change in discount rate assumptions (0.2) (0.9) (0.7) (0.1) — — Adjusted balance, beginning of year January 1, 2021, net of reinsurance $ 330.3 $ 114.2 $ 1,189.3 $ 69.3 $ 415.5 $ 136.5 Present Value of Expected Net Premiums Balance at January 1, 2021 $ 176.5 $ 244.1 $ 78.0 $ 25.4 $ 233.0 $ — January 1, 2021 balance at original discount rate 143.5 200.8 55.2 22.0 218.2 — Effect of: Change in cash flow assumptions 2.4 (4.5) (3.3) — (1.8) — Actual variances from expected experience 8.8 6.9 6.3 1.0 6.3 — Adjusted balance at January 1, 2021 154.7 203.2 58.2 23.0 222.7 — Issuances (3) 13.3 29.8 — 10.2 13.0 3.7 Interest accruals (4) 6.2 7.9 3.2 0.8 5.9 — Net premiums collected (5) (16.6) (19.8) (5.6) (6.8) (24.1) (3.7) December 31, 2021 balance at original discount rate 157.6 221.1 55.8 27.2 217.5 — Effect of changes in discount rate assumptions 25.4 32.0 18.8 2.5 4.0 — Balance at December 31, 2021 183.0 253.1 74.6 29.7 221.5 — Present Value of Expected Future Policy Benefits Balance at January 1, 2021 507.1 364.7 1,269.3 95.0 626.9 136.5 January 1, 2021 balance at original discount rate 362.5 294.0 813.5 73.4 589.1 115.9 Effect of: Changes in cash flow assumptions 2.8 (4.8) (3.6) — (3.0) — Actual variances from expected experience 8.7 7.2 6.6 1.1 6.2 (0.4) Adjusted balance at January 1, 2021 374.0 296.4 816.5 74.5 592.3 115.5 Issuances 13.3 29.8 — 10.2 13.0 3.7 Interest accruals 17.1 12.0 47.9 2.9 15.7 4.5 Benefit payments (5) (18.1) (18.7) (61.9) (1.0) (48.4) (12.1) December 31, 2021 balance at original discount rate 386.3 319.5 802.5 86.6 572.6 111.6 Effect of changes in discount rate assumptions 114.4 51.1 370.2 16.3 8.0 13.1 Balance at December 31, 2021 500.7 370.6 1,172.7 102.9 580.6 124.7 Net liability for future policy benefits 317.7 117.6 1,098.1 73.2 359.1 124.7 Less: Reinsurance recoverable (0.5) (5.5) (1.1) (0.2) — — Net liability for future policy benefits, after reinsurance recoverable $ 317.2 $ 112.1 $ 1,097.0 $ 73.0 $ 359.1 $ 124.7 (1) Experience Life contains both whole life and term elements. (2) As of December 31, 2021, the net LFPB for Supplemental Health was $140.8 million for cancer, $28.7 million for accident, $29.3 million for disability and $160.3 million for other supplemental health policies. (3) Issuances are calculated at present value, using the original discount rate, of the expected net premiums or the expected future policy benefits related to new policies issued during the current period. (4) Interest accruals represent the interest earned on the beginning present value of either the expected net premiums or the expected future policy benefits using the original interest rate. (5) Net premiums collected represent the product of the current period net premium ratio and the gross premiums collected during the period of in force business. The following table summarizes the amount of revenue and interest related to traditional and limited-payment contracts recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss): ($ in millions) Gross premiums or assessments Gross premiums or assessments Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 7.2 $ 7.0 $ 20.5 $ 19.3 Term life 11.7 11.3 33.9 31.6 Experience life 8.1 8.4 24.2 25.2 Limited-pay whole life 2.2 2.0 5.5 6.3 Supplemental health 30.0 30.4 89.7 91.7 SPIA (life contingent) 0.9 0.9 4.5 4.2 Total $ 60.1 $ 60.0 $ 178.3 $ 178.3 ($ in millions) Interest expense Interest expense Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Whole life $ 3.0 $ 2.8 $ 8.8 $ 8.4 Term life 1.2 1.0 3.6 3.2 Experience life 10.9 11.1 32.8 33.2 Limited-pay whole life 0.6 0.6 1.9 1.8 Supplemental health 2.1 2.2 6.4 6.9 SPIA (life contingent) 1.1 1.1 3.3 3.3 Total $ 18.9 $ 18.8 $ 56.8 $ 56.8 The following table provides the amount of undiscounted and discounted expected gross premiums and expected future benefits and expenses for traditional and limited-payment contracts: ($ in millions) As of September 30, 2023 As of December 31, 2022 Undiscounted Discounted Undiscounted Discounted Whole life Expected future gross premiums $ 473.9 $ 323.6 $ 469.0 $ 322.5 Expected future benefits and expenses 1,138.5 591.2 1,121.4 580.4 Term life Expected future gross premiums 757.0 471.7 739.3 464.2 Expected future benefits and expenses 704.2 411.4 678.0 401.0 Experience Life Expected future gross premiums 542.1 301.8 569.6 315.5 Expected future benefits and expenses 1,713.6 796.4 1,755.4 805.2 Limited-pay whole life Expected future gross premiums 63.3 48.2 60.8 46.5 Expected future benefits and expenses 238.3 104.3 226.8 98.6 Supplemental health Expected future gross premiums 1,639.2 1,206.3 1,615.5 1,208.1 Expected future benefits and expenses 713.5 517.2 761.4 563.6 SPIA (life contingent) Expected future gross premiums — — — — Expected future benefits and expenses 156.7 111.9 157.7 113.4 The following table provides the weighted-average durations of LFPB, in years: As of September 30, 2023 2022 Whole life 17.8 17.7 Term life 16.4 15.8 Experience life 10.4 10.7 Limited-pay whole life 22.2 21.3 Supplemental health 10.4 9.9 SPIA (life contingent) 7.6 7.7 The following table provides ranges of the weighted-average interest rates for LFPB: As of September 30, 2023 2022 Whole life Interest accretion rate 1.7% - 4.9% 1.7% - 5.0% Current discount rate 5.5% - 5.9% 4.9% - 5.4% Term life Interest accretion rate 4.2% - 4.3% 4.1% - 4.3% Current discount rate 5.9% - 5.9% 5.5% - 5.5% Experience life Interest accretion rate 6.1 % 6.1 % Current discount rate 5.9 % 5.5 % Limited-pay whole life Interest accretion rate 3.9 % 3.9 % Current discount rate 5.9 % 5.4 % Supplemental health Interest accretion rate 1.7% - 2.7% 1.7% - 2.7% Current discount rate 5.9% - 6.1% 5.4% - 5.8% SPIA (life contingent) Interest accretion rate 1.7% - 4.1% 1.7% - 4.0% Current discount rate 5.8% - 5.8% 5.4% - 5.4%
Schedule of Liability for Future Policy Benefits, by Product Segment	The following table reconciles the net LFPB to LFPB in the Consolidated Balance Sheets. DPL for single premium and immediate annuity products is presented together with LFPB in the Consolidated Balance Sheets: ($ in millions) September 30, 2023 December 31, 2022 Whole life $ 262.7 $ 279.5 Term life 112.4 112.4 Experience life 743.2 799.3 Limited-pay whole life 48.2 49.6 Supplemental health 234.0 264.4 SPIA (life contingent) 98.2 103.3 Limited-pay whole life DPL 3.9 3.2 SPIA (life contingent) DPL 1.2 0.8 Reconciling items (1) 109.6 105.5 Total $ 1,613.4 $ 1,718.0 (1) Reconciling items primarily relate to products not in scope of ASU 2018-12 and return of premium reserves.
Schedule of Fair Value Measurement Inputs and Valuation Techniques	Level 3 Assets and Liabilities by Price Source The table below presents the balances of Level 3 assets and liabilities measured at fair value with their corresponding pricing sources (in millions, 2022 information recast for the adoption of LDTI): ($ in millions) Total Internal External September 30, 2023 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.5 $ — $ 2.5 Municipal bonds 69.7 — 69.7 Corporate bonds 305.2 47.4 257.8 Other asset-backed securities 98.0 — 98.0 Total fixed maturity securities 475.4 47.4 428.0 Equity securities 2.2 — 2.2 Totals $ 477.6 $ 47.4 $ 430.2 Financial Liabilities (1) $ 78.3 $ 78.3 $ — December 31, 2022 Financial Assets Fixed maturity securities U.S. Government and federally sponsored agency obligations: Mortgage-backed securities $ 2.6 $ — $ 2.6 Municipal bonds 54.4 — 54.4 Corporate bonds 261.3 9.5 251.8 Other asset-backed securities 105.0 — 105.0 Total fixed maturity securities 423.3 9.5 413.8 Equity securities 2.0 — 2.0 Totals $ 425.3 $ 9.5 $ 415.8 Financial Liabilities (1) $ 91.3 $ 91.3 $ — (1) Represents embedded derivatives related to fixed indexed annuity and indexed universal life products reported in Future policy benefit reserves and Other policyholder funds as well as net MRBs reported in Policyholders' account balances in the Company's Consolidated Balance Sheets. External pricing sources for securities represent prices from prior transactions or unadjusted third-party pricing information where pricing inputs are not readily available. Quantitative Information about Level 3 Fair Value Measurements The following table provides quantitative information about the significant unobservable inputs for recurring fair value measurements categorized with Level 3. ($ in millions) Fair Value as of September 30, 2023 Valuation Technique(s) Unobservable Inputs Range (Weighted Average) and Single Point Best Estimate (1) Financial Assets Corporate bonds $ 47.4 discounted cash flow yield 8.3% - 17.4% Financial Liabilities Derivatives embedded in fixed indexed annuity products $ 82.8 discounted cash flow lapse rate 5.4% mortality multiplier (2) 67.8% option budget 0.9% - 3.8% non-performance adjustment (3) 5.0% Net MRBs $ (4.5) discounted cash flow lapse rate 5.9% mortality multiplier (2) 67.8% (1) When a range of unobservable inputs is not readily available, the Company uses a single point best estimate. (2) Mortality multiplier is applied to the Annuity 2000 table. (3) Determined as a percentage of the risk-free rate. The following table summarizes the ranges of actual experience and expected experience for mortality and lapses of LFPB: September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.7 % 0.1% - 0.6% 1.7 % 0.1 % N.M. Expected experience 0.7 % 0.1% - 1.7% 1.6 % 0.3 % N.M. Lapses Actual experience 3.6 % 5.3% - 7.3% 3.2 % 4.3 % N.M. Expected experience 4.7 % 5.7% - 32.2% 3.1 % 5.3 % N.M. September 30, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life SPIA (life contingent) Mortality Actual experience 0.8 % 0.1% - 0.3% 1.6 % 0.2 % N.M. Expected experience 0.7 % 0.1% - 0.8% 1.4 % 0.2 % N.M. Lapses Actual experience 3.1 % 5.6% - 63.0% 3.4 % 4.0 % N.M. Expected experience 5.8 % 6.6% - 7.3% 3.2 % 7.5 % N.M.
Schedule of Policyholder Account Balance	The following tables summarize balances of and changes in policyholders' account balances: ($ in millions) Three Months Ended September 30, 2023 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at July 1, 2023 $ 52.0 $ 63.0 $ 4,563.5 $ 481.2 $ 33.5 Premiums received (1) $ 3.1 $ (0.1) $ 70.0 $ 5.3 $ 0.5 Surrenders and withdrawals (2) (0.2) (1.1) (87.8) (17.6) — Benefit payments (3) — (0.4) (21.2) (0.6) (1.2) Net transfers from (to) separate account (0.3) — 3.0 (3.1) — Interest credited (4) 0.7 0.8 40.8 3.0 0.3 Other (0.6) (0.1) 0.2 (0.2) — Balance at September 30, 2023 $ 54.7 $ 62.1 $ 4,568.5 $ 468.0 $ 33.1 Weighted-average crediting rate 5.4 % 5.2 % 3.6 % 2.6 % 3.7 % Net amount at risk (5) $ — $ — $ 53.9 $ — $ — Cash surrender value $ 37.7 $ 61.4 $ 4,512.3 $ 456.8 $ 32.9 ($ in millions) Three Months Ended September 30, 2022 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at July 1, 2022 $ 42.6 $ 65.4 $ 4,573.7 $ 518.2 $ 36.3 Premiums received (1) $ 3.2 $ (0.2) $ 61.3 $ 8.0 $ 0.3 Surrenders and withdrawals (2) (0.1) (0.9) (64.4) (9.8) — Benefit payments (3) — (0.4) (17.7) (1.1) (1.4) Net transfers from (to) separate account — — 7.8 (0.7) — Interest credited (4) — 0.9 39.2 0.1 0.2 Other (0.9) (0.1) 4.2 2.2 — Balance at September 30, 2022 $ 44.8 $ 64.7 $ 4,604.1 $ 516.9 $ 35.4 Weighted-average crediting rate — % 5.7 % 3.5 % 0.1 % 2.3 % Net amount at risk (5) $ — $ — $ 110.2 $ — $ — Cash surrender value $ 29.0 $ 64.0 $ 4,546.5 $ 501.7 $ 35.0 (1) Premiums received represents premiums collected from policyholder during the period of in force business. (2) Surrenders and withdrawals represent reductions to the policyholders' account balance due to policyholders surrendering the policy or withdrawing funds from the account balance. (3) Benefit payments represent benefits due under contract that were paid to a policyholder during the periods. (4) Interest credited represents interest earned and credited to policyholders' account balance during the periods. ($ in millions) Nine Months Ended September 30, 2023 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at January 1, 2023 $ 47.6 $ 64.3 $ 4,591.1 $ 510.3 $ 34.4 Premiums received (1) $ 9.8 $ (0.5) $ 183.9 $ 15.8 $ 2.6 Surrenders and withdrawals (2) (0.9) (2.6) (289.8) (50.1) (0.2) Benefit payments (3) — (1.3) (58.1) (2.1) (4.3) Net transfers from (to) separate account (0.5) — 17.5 (6.4) — Interest credited (4) 0.9 2.3 120.7 3.9 0.8 Other (2.2) (0.1) 3.2 (3.4) (0.2) Balance at September 30, 2023 $ 54.7 $ 62.1 $ 4,568.5 $ 468.0 $ 33.1 Weighted-average crediting rate 2.3 % 5.0 % 3.6 % 1.1 % 3.1 % Net amount at risk (5) $ — $ — $ 53.9 $ — $ — Cash surrender value $ 37.7 $ 61.4 $ 4,512.3 $ 456.8 $ 32.9 ($ in millions) Nine Months Ended September 30, 2022 Indexed Universal Life Experience Life Fixed Account Annuities Fixed Indexed Account Annuities SPIA (non-life contingent) Balance at January 1, 2022 $ 39.1 $ 66.2 $ 4,532.7 $ 522.6 $ 37.7 Premiums received (1) $ 7.9 $ (0.2) $ 156.0 $ 25.4 $ 1.7 Surrenders and withdrawals (2) (0.7) (2.4) (184.2) (30.1) (0.4) Benefit payments (3) — (1.2) (50.6) (2.9) (4.4) Net transfers from (to) separate account — — 34.6 (1.1) — Interest credited (4) 0.8 2.4 116.4 3.2 0.8 Other (2.3) (0.1) (0.8) (0.2) — Balance at September 30, 2022 $ 44.8 $ 64.7 $ 4,604.1 $ 516.9 $ 35.4 Weighted-average crediting rate 2.7 % 5.0 % 3.5 % 0.8 % 3.0 % Net amount at risk (5) $ — $ — $ 110.2 $ — $ — Cash surrender value $ 29.0 $ 64.0 $ 4,546.5 $ 501.7 $ 35.0 (1) Premiums received represents premiums collected from policyholder during the period of in force business. (2) Surrenders and withdrawals represent reductions to the policyholders' account balance due to policyholders surrendering the policy or withdrawing funds from the account balance. (3) Benefit payments represent benefits due under contract that were paid to a policyholder during the periods. (4) Interest credited represents interest earned and credited to policyholders' account balance during the periods. (5) Net amount at risk represents guaranteed benefit amounts less current policyholders' account balance at the reporting date. The following table reconciles policyholders' account balances to the policyholders' account balance liability in the Consolidated Balances Sheets: ($ in millions) September 30, 2023 December 31, 2022 Indexed universal life $ 54.7 $ 47.6 Experience Life 62.1 64.3 Fixed account annuities 4,568.5 4,591.1 Fixed indexed account annuities 468.0 510.3 SPIA (non-life contingent) 33.1 34.4 Reconciling items (1) 17.6 12.9 Total $ 5,204.0 $ 5,260.6 (1) Reconciling items primarily relate to FIA reserves net of account balances, miscellaneous fixed annuity reserves, personal promise accounts and MRBs.
Schedule of Policyholder Account Balance, Guaranteed Minimum Crediting Rate	The following tables present the gross account values by range of guaranteed minimum crediting rates and the related range of difference, in basis points, between rates being credited to policyholders and the respective guaranteed minimums: ($ in millions) September 30, 2023 At Guaranteed Minimum 1-50 Basis Points Above 51-150 Basis Points Above Greater Than 150 Basis Points Above Total (1) Guaranteed minimum crediting rates: Less than 2% $ 64.4 $ 252.2 $ 417.3 $ 182.3 $ 916.2 Equal to 2% but less than 3% 197.9 56.0 38.0 37.0 328.9 Equal to 3% but less than 4% 598.0 22.3 0.7 — 621.0 Equal to 4% but less than 5% 2,692.8 — — — 2,692.8 5% or higher 89.3 — — — 89.3 Total $ 3,642.4 $ 330.5 $ 456.0 $ 219.3 $ 4,648.2 ($ in millions) December 31, 2022 At Guaranteed Minimum 1-50 Basis Points Above 51-150 Basis Points Above Greater Than 150 Basis Points Above Total (1) Guaranteed minimum crediting rates: Less than 2% $ 262.5 $ 370.6 $ 214.4 $ 96.1 $ 943.6 Equal to 2% but less than 3% 256.1 19.8 4.7 — 280.6 Equal to 3% but less than 4% 667.4 0.4 0.4 — 668.2 Equal to 4% but less than 5% 2,706.1 — — — 2,706.1 5% or higher 91.7 — — — 91.7 Total $ 3,983.8 $ 390.8 $ 219.5 $ 96.1 $ 4,690.2 (1) Excludes products not containing a fixed guaranteed minimum crediting rate.
Schedule of Separate Account, Liability	The following table presents the balances of and changes in the Separate Account variable annuity liabilities presented in the Consolidated Balance Sheets (1) : ($ in millions) Retirement Services Variable Account Annuities September 30, 2023 December 31, 2022 Balance, beginning of year $ 2,792.3 $ 3,441.0 Deposits 173.9 240.3 Withdrawals (163.3) (186.8) Net transfers (11.1) (38.1) Fees and charges (28.0) (36.8) Market appreciation (depreciation) 215.6 (619.7) Other (5.4) (7.6) Balance, end of period $ 2,974.0 $ 2,792.3 (1) The Separate Account variable annuity liabilities are backed by, and are equal to, the Separate Account variable annuity assets that represent contractholder funds invested in various actively traded mutual funds that have daily quoted net asset values that are readily determinable for identical assets that the Company can access.
Schedule of Market Risk Benefit, Activity	The following table summarizes the balance of and changes in the net liability position of MRBs on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Balance, end of year December 31, 2020 $ 0.1 Adjustment for the difference between carrying amount and fair value, except for the difference due to instrument-specific credit risk 6.8 Adjustment for cumulative effect of changes in the instrument-specific credit risk at issuance 1.7 Total adjustment for the difference between carrying amount and fair value 8.5 Balance, beginning of year January 1, 2021 8.6 Less: Reinsurance recoverable — Balance, beginning of year January 1, 2021, net of reinsurance $ 8.6 The following table presents the balances of and changes in MRBs associated with deferred variable annuities as of and for the three and nine months ended September 30, 2023 and 2022, respectively: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Balance, beginning of period $ (3.6) $ 4.6 $ 0.2 $ 4.8 Balance, beginning of period, before effects of changes in the instrument-specific credit risk (3.2) 4.2 — 2.0 Changes in market risk benefits (1) (1.3) (1.6) (4.5) 0.6 Balance, end of period (2) $ (4.5) $ 2.6 $ (4.5) $ 2.6 Effect of changes in the instrument-specific credit risk — 0.3 — 0.3 Balance, end of period $ (4.5) $ 2.9 $ (4.5) $ 2.9 Net amount at risk (3) $ 37.6 $ 79.9 $ 37.6 $ 79.9 Weighted-average attained age of contract holders 63 63 63 63 (1) Reflects interest accruals and effect of changes in interest rates, equity markets, equity index volatility and future assumptions. (2) Balance, end of period, before the effect of changes in the instrument-specific credit risk. (3) Net amount at risk represents the current guaranteed benefit less current account balance at the reporting date. The following table presents MRBs by amounts in an asset position and amounts in a liability position. The net liabilities (assets) are included in Policyholders' account balances presented in the Consolidated Balance Sheets. ($ in millions) As of September 30, 2023 As of December 31, 2022 (Asset) Liability Net (Asset) Liability Net Deferred variable annuities $ (6.4) $ 1.9 $ (4.5) $ (4.4) $ 4.7 $ 0.3
Schedule of Deferred Policy Acquisition Costs	The following table summarizes the balance of and changes in DAC on January 1, 2021 due to adoption of ASU 2018-12: ($ in millions) Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 DAC and Deferred Sales Inducements The following tables roll-forward DAC for the periods indicated: ($ in millions) Three Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 21.6 $ 31.4 $ 5.7 $ 7.0 $ 16.1 $ 7.0 $ 217.2 Capitalizations 0.7 1.5 0.1 0.4 0.6 0.7 3.7 Amortization expense (0.3) (0.8) (0.1) (0.1) (0.2) (0.2) (3.6) Experience adjustment (0.1) (0.1) — (0.1) (0.1) — (2.3) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Nine Months Ended September 30, 2023 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of period $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 Capitalizations 2.0 4.3 0.2 0.9 1.8 2.0 11.4 Amortization expense (0.9) (2.2) (0.3) (0.3) (0.7) (0.5) (11.0) Experience adjustment (0.1) (0.1) — (0.1) (0.1) (0.2) (6.5) Balance, end of period $ 21.9 $ 32.0 $ 5.7 $ 7.2 $ 16.4 $ 7.5 $ 215.0 ($ in millions) Year Ended December 31, 2022 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, beginning of year $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 Capitalizations 3.0 5.0 0.2 1.4 2.5 1.8 15.5 Amortization expense (1.2) (2.5) (0.4) (0.3) (0.8) (0.5) (15.8) Experience adjustment — — — — — — (1.9) Balance, end of year $ 20.9 $ 30.0 $ 5.8 $ 6.7 $ 15.4 $ 6.2 $ 221.1 ($ in millions) Year Ended December 31, 2021 Whole Life Term Life Experience Life Limited-Pay Whole Life Indexed Universal Life Supplemental Health Total Annuities Balance, end of year December 31, 2020 $ 17.8 $ 25.6 $ 2.6 $ 4.4 $ 11.3 $ 4.3 $ 137.7 Adjustment for removal of related balances in AOCI — — 3.6 — 1.6 — 85.4 Adjusted balance, beginning of year January 1, 2021 $ 17.8 $ 25.6 $ 6.2 $ 4.4 $ 12.9 $ 4.3 $ 223.1 Capitalizations 2.4 4.2 0.2 1.5 1.7 1.1 17.3 Amortization expense (1.1) (2.3) (0.4) (0.3) (0.8) (0.5) (16.0) Experience adjustment — — — — (0.1) — (1.1) Balance, end of year December 31, 2021 $ 19.1 $ 27.5 $ 6.0 $ 5.6 $ 13.7 $ 4.9 $ 223.3 The following table presents a reconciliation of DAC to the Consolidated Balance Sheets: ($ in millions) September 30, 2023 December 31, 2022 Whole life $ 21.9 $ 20.9 Term life 32.0 30.0 Experience life 5.7 5.8 Limited pay whole life 7.2 6.7 Indexed universal life 16.4 15.4 Supplemental health 7.5 6.2 Total annuities 215.0 221.1 Reconciling item (1) 29.2 24.5 Total $ 334.9 $ 330.6 (1) Reconciling item relates to DAC associated with the Property & Casualty reporting segment.
Schedule of Deferred Sale Inducement Cost	The following table rolls-forward the deferred sales inducements balance as of and for the three and nine months ended September 30, 2023: ($ in millions) Three Months Ended September 30, 2023 Nine Months Ended September 30, 2023 Balance, beginning of period $ 14.9 $ 15.9 Capitalizations — — Amortization expense (0.2) (0.8) Experience adjustment (0.2) (0.6) Balance, end of period $ 14.5 $ 14.5

Reinsurance (Tables)

Reinsurance (Tables)	9 Months Ended
	Sep. 30, 2023
Insurance [Abstract]
Schedule of Effects of Reinsurance on Premiums and Benefits	The effects of reinsurance on net premiums written and contract deposits; net premiums and contract charges earned; and benefits, claims and settlement expenses were as follows: ($ in millions) Direct Ceded to Other Companies (1) Assumed Net Three months ended September 30, 2023 Net premiums written and contract deposits (2) $ 424.0 $ 16.5 $ 8.4 $ 415.9 Net premiums and contract charges earned 276.7 18.7 8.0 266.0 Benefits, claims and settlement expenses 205.2 9.1 3.1 199.2 Three months ended September 30, 2022 Net premiums written and contract deposits (2) $ 391.2 $ 15.4 $ 13.4 $ 389.2 Net premiums and contract charges earned 261.6 17.6 13.4 257.4 Benefits, claims and settlement expenses 170.9 8.3 4.6 167.1 Nine months ended September 30, 2023 Net premiums written and contract deposits (2) $ 1,186.5 $ 51.0 $ 28.2 $ 1,163.7 Net premiums and contract charges earned 812.3 57.2 27.5 782.6 Benefits, claims and settlement expenses 615.6 36.1 8.1 587.6 Nine months ended September 30, 2022 Net premiums written and contract deposits (2) $ 1,127.1 $ 46.7 $ 39.5 $ 1,119.9 Net premiums and contract charges earned 782.5 53.5 39.6 768.6 Benefits, claims and settlement expenses 564.9 34.1 14.9 545.7 (1) Excludes the annuity reinsurance transaction accounted for using the deposit method. (2) This measure is not based on accounting principles generally accepted in the United States of America (non-GAAP). An explanation of this non-GAAP measure is contained in the Glossary of Selected Terms included as Exhibit 99.1 in the Company's reports filed with the SEC.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Summarized Financial Information for These Segments	Summarized financial information for these segments is as follows: ($ in millions) Three Months Ended Nine Months Ended 2023 2022 2023 2022 Net premiums and contract charges earned Property & Casualty $ 164.3 $ 152.4 $ 474.1 $ 452.5 Life & Retirement 38.2 36.8 113.3 108.9 Supplemental & Group Benefits 63.5 68.2 195.2 207.2 Total $ 266.0 $ 257.4 $ 782.6 $ 768.6 Net investment income Property & Casualty $ 12.0 $ 8.0 $ 26.6 $ 22.9 Life & Retirement 96.9 81.4 274.1 254.0 Supplemental & Group Benefits 10.3 8.7 28.5 25.4 Corporate & Other 0.2 — 0.2 — Intersegment eliminations (0.5) (0.5) (1.6) (1.6) Total $ 118.9 $ 97.6 $ 327.8 $ 300.7 Net income (loss) Property & Casualty $ (11.3) $ (2.5) $ (44.3) $ (19.4) Life & Retirement 20.9 17.7 52.3 57.1 Supplemental & Group Benefits 15.8 20.7 41.6 48.9 Corporate & Other (13.7) (15.5) (44.1) (50.1) Total $ 11.7 $ 20.4 $ 5.5 $ 36.5 ($ in millions) September 30, 2023 December 31, 2022 Assets Property & Casualty $ 1,142.2 $ 1,083.8 Life & Retirement 10,856.2 10,754.5 Supplemental & Group Benefits 1,299.8 1,359.3 Corporate & Other 172.6 173.4 Intersegment eliminations (58.4) (64.9) Total $ 13,412.5 $ 13,306.1

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table reconciles these components. ($ in millions) Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities (1) Net Reserve Remeasurements Attributable to Discount Rates (1) Net Funded Status of Benefit Plans (1) Total (1) Beginning balance, July 1, 2023 $ (393.7) $ 42.9 $ (8.8) $ (359.6) Other comprehensive income (loss) before reclassifications (143.7) 90.7 — (53.0) Amounts reclassified from AOCI (2) 2.7 — — 2.7 Net current period other comprehensive income (loss) (141.0) 90.7 — (50.3) Ending balance, September 30, 2023 $ (534.7) $ 133.6 $ (8.8) $ (409.9) Beginning balance, July 1, 2022 $ (281.8) $ (36.9) $ (10.2) $ (328.9) Other comprehensive income (loss) before reclassifications (223.4) 110.7 — (112.7) Amounts reclassified from AOCI (3) 8.4 — — 8.4 Net current period other comprehensive income (loss) (215.0) 110.7 — (104.3) Ending balance, September 30, 2022 $ (496.8) $ 73.8 $ (10.2) $ (433.2) Beginning balance, January 1, 2023 $ (449.6) $ 59.0 $ (8.8) $ (399.4) Other comprehensive income (loss) before reclassifications (101.3) 74.6 — (26.7) Amounts reclassified from AOCI (2) 16.2 — — 16.2 Net current period other comprehensive income (loss) (85.1) 74.6 — (10.5) Ending balance, September 30, 2023 $ (534.7) $ 133.6 $ (8.8) $ (409.9) Beginning balance, January 1, 2022 $ 347.1 $ (386.9) $ (10.2) $ (50.0) Other comprehensive income (loss) before reclassifications (856.5) 460.7 — (395.8) Amounts reclassified from AOCI (2) 12.6 — — 12.6 Net current period other comprehensive income (loss) (843.9) 460.7 — (383.2) Ending balance, September 30, 2022 $ (496.8) $ 73.8 $ (10.2) $ (433.2) (1) All amounts are net of tax. (2) The pretax amounts reclassified from AOCI, $(3.5) million and $(20.5) million, are included in Net investment gains (losses) and the related income tax benefits, $(0.7) million and $(4.3) million, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2023, respectively. (3) The pretax amounts reclassified from AOCI, $(10.7) million and $(15.9) million, are included in Net investment gains (losses) and the related income tax benefits, $(2.3) million and $(3.4) million, are included in income tax expense in the Consolidated Statements of Operations for the three and nine months ended September 30, 2022, respectively.

Supplemental Consolidated Cas_2

Supplemental Consolidated Cash and Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2023
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash and Cash Equivalents	($ in millions) September 30, 2023 December 31, 2022 Cash $ 33.7 $ 42.2 Restricted cash 0.8 0.6 Total cash and restricted cash reported in the Consolidated Balance Sheets $ 34.5 $ 42.8
Schedule of Restrictions on Cash and Cash Equivalents	($ in millions) September 30, 2023 December 31, 2022 Cash $ 33.7 $ 42.2 Restricted cash 0.8 0.6 Total cash and restricted cash reported in the Consolidated Balance Sheets $ 34.5 $ 42.8
Schedule of Supplemental Cash Flow Information	($ in millions) Nine Months Ended 2023 2022 Cash paid for: Interest $ 18.3 $ 9.1 Income taxes 14.8 6.4

Prior Period Consolidated Fin_2

Prior Period Consolidated Financial Statements (Tables)	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Error Corrections and Prior Period Adjustments	The following tables summarize the effects of adopting LDTI on our unaudited Consolidated Financial Statements. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED BALANCE SHEET (UNAUDITED) ($ in millions, except share data) December 31, 2022 Effect of the Adoption of ASU 2018-12 Reclassifications (1) December 31, 2022 As Reported As Adjusted Assets Total investments $ 6,587.6 $ — $ — $ 6,587.6 Cash 42.8 — — 42.8 Deferred policy acquisition costs 433.1 (102.5) — 330.6 Reinsurance balances receivable 506.2 (38.2) — 468.0 Deposit asset on reinsurance 2,516.6 — — 2,516.6 Intangible assets 185.2 — — 185.2 Goodwill 54.3 — — 54.3 Other assets 328.7 — — 328.7 Separate Account variable annuity assets 2,792.3 — — 2,792.3 Total assets $ 13,446.8 $ (140.7) $ — $ 13,306.1 Liabilities and Shareholders' Equity Policy liabilities Investment contract and policy reserves $ 6,968.0 $ (151.9) $ (6,816.1) $ — Future policy benefit reserves 1,718.0 1,718.0 Policyholders' account balances 5,260.6 5,260.6 Unpaid claims and claim expenses 585.1 (2.9) (18.2) 564.0 Unearned premiums 264.2 1.9 — 266.1 Total policy liabilities 7,817.3 (152.9) 144.3 7,808.7 Other policyholder funds 954.0 (0.4) (144.3) 809.3 Other liabilities 297.0 2.5 — 299.5 Short-term debt 249.0 — — 249.0 Long-term debt 249.0 — — 249.0 Separate Account variable annuity liabilities 2,792.3 — — 2,792.3 Total liabilities 12,358.6 (150.8) — 12,207.8 Preferred stock — — — — Common stock 0.1 — — 0.1 Additional paid-in capital 502.6 — — 502.6 Retained earnings 1,468.6 43.8 — 1,512.4 Accumulated other comprehensive income (loss), net of tax: Net unrealized investment losses on fixed maturity securities (356.9) (92.7) — (449.6) Net reserve remeasurements attributable to discount rates — 59.0 — 59.0 Net funded status of benefit plans (8.8) — — (8.8) Treasury stock, at cost (517.4) — — (517.4) Total shareholders’ equity 1,088.2 10.1 — 1,098.3 Total liabilities and shareholders’ equity $ 13,446.8 $ (140.7) $ — $ 13,306.1 (1) The Company has reclassified the presentation of certain information to conform to the current year's presentation. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) ($ in millions, except per share data) Three Months Ended Effect of the Adoption of ASU 2018-12 Three Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Statement of Operations Revenues Net premiums and contract charges earned $ 257.8 $ (0.4) $ 257.4 Net investment income 97.6 — 97.6 Net investment losses (12.8) — (12.8) Other income 0.4 — 0.4 Total revenues 343.0 (0.4) 342.6 Benefits, losses and expenses Benefits, claims and settlement expenses 173.6 (6.4) 167.1 Interest credited 45.9 (1.1) 44.8 Operating expenses 75.6 — 75.6 DAC amortization expense 23.3 (1.1) 22.2 Intangible asset amortization expense 4.2 — 4.2 Interest expense 5.3 — 5.3 Total benefits, losses and expenses 327.9 (8.6) 319.2 Income before income taxes 15.1 8.3 23.4 Income tax expense (benefit) 1.2 1.8 3.0 Net income (loss) 13.9 6.5 20.4 Net income (loss) per share Basic 0.33 0.16 0.49 Diluted 0.33 0.16 0.49 Weighted average number of shares and equivalent shares Basic 41.4 — 41.4 Diluted 41.6 — 41.6 Statement of Comprehensive Income (Loss) Net income (loss) 13.9 6.5 20.4 Other comprehensive income (loss), net of tax: Change in net unrealized investment losses on fixed maturity securities (176.3) (38.7) (215.0) Change in net reserve remeasurements attributable to discount rates — 110.7 110.7 Change in net funded status of benefit plans — — — Other comprehensive loss (176.3) 72.0 (104.3) Comprehensive income (loss) $ (162.4) $ 78.5 $ (83.9) HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) ($ in millions, except per share data) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Statement of Operations Revenues Net premiums and contract charges earned $ 769.5 $ (0.9) $ 768.6 Net investment income 300.7 — 300.7 Net investment losses (43.8) — (43.8) Other income 9.7 — 9.7 Total revenues 1,036.1 (0.9) 1,035.2 Benefits, losses and expenses Benefits, claims and settlement expenses 558.2 (12.5) 545.7 Interest credited 129.1 (3.2) 125.9 Operating expenses 229.7 (0.3) 229.4 DAC amortization expense 76.7 (11.0) 65.7 Intangible asset amortization expense 12.6 — 12.6 Interest expense 13.5 — 13.5 Total benefits, losses and expenses 1,019.8 (27.0) 992.8 Income before income taxes 16.3 26.1 42.4 Income tax expense (benefit) 0.4 5.5 5.9 Net income 15.9 20.6 36.5 Net income per share Basic 0.38 0.49 0.87 Diluted 0.38 0.49 0.87 Weighted average number of shares and equivalent shares Basic 41.7 — 41.7 Diluted 41.9 — 41.9 Statement of Comprehensive Income (Loss) Net income 15.9 20.6 36.5 Other comprehensive income (loss), net of tax: Change in net unrealized investment losses on fixed maturity securities (687.4) (156.5) (843.9) Change in net reserve remeasurements attributable to discount rates — 460.7 460.7 Change in net funded status of benefit plans — — — Other comprehensive loss (687.4) 304.2 (383.2) Comprehensive income (loss) $ (671.5) $ 324.8 $ (346.7) HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) ($ in millions, except per share data) Three Months Ended Effect of the Adoption of ASU 2018-12 Three Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Common stock, $0.001 par value Ending balance $ 0.1 $ — $ 0.1 Additional paid-in capital Ending balance 500.4 — 500.4 Retained earnings Beginning balance 1,499.9 35.4 1,535.3 Net income 13.9 6.5 20.4 Effect of adopting ASU 2018-12 (1) — — — Dividends,per share; 2022, $0.32 per share (13.4) 0.1 (13.3) Ending balance 1,500.4 42.0 1,542.4 Accumulated other comprehensive income (loss), net of tax: Beginning balance (230.6) (98.3) (328.9) Change in net unrealized investment losses on fixed maturity securities (176.3) (38.7) (215.0) Change in net reserve remeasurements attributable to discount rates — 110.7 110.7 Change in net funded status of benefit plans — — — Ending balance (406.9) (26.3) (433.2) Treasury stock, at cost Ending balance (517.4) — (517.4) Shareholders' equity at end of period $ 1,076.6 $ 15.7 $ 1,092.3 (1) See Note 1 to the Consolidated Financial Statements for information regarding ASU 2018-12. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) ($ in millions, except per share data) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Common stock, $0.001 par value Ending balance $ 0.1 $ — $ 0.1 Additional paid-in capital Ending balance 500.4 — 500.4 Retained earnings Beginning balance 1,524.9 22.1 1,547.0 Net income 15.9 20.6 36.5 Effect of adopting ASU 2018-12 (1) — (0.8) (0.8) Dividends,per share; 2022, $0.32 per share (40.4) 0.1 (40.3) Ending balance 1,500.4 42.0 1,542.4 Accumulated other comprehensive income (loss), net of tax: Beginning balance 280.5 (330.5) (50.0) Change in net unrealized investment losses on fixed maturity securities (687.4) (156.5) (843.9) Change in net reserve remeasurements attributable to discount rates — 460.7 460.7 Change in net funded status of benefit plans — — — Ending balance (406.9) (26.3) (433.2) Treasury stock, at cost Ending balance (517.4) — (517.4) Shareholders' equity at end of period $ 1,076.6 $ 15.7 $ 1,092.3 (1) See Note 1 to the Consolidated Financial Statements for information regarding ASU 2018-12. HORACE MANN EDUCATORS CORPORATION CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) ($ in millions) Nine Months Ended Effect of the Adoption of ASU 2018-12 Nine Months Ended September 30, 2022 September 30, 2022 As Reported As Adjusted Cash flows - operating activities Net income $ 15.9 $ 20.6 $ 36.5 Adjustments to reconcile net income to net cash provided by operating activities: Net investment losses 43.8 — 43.8 Depreciation and intangible asset amortization 20.7 — 20.7 Share-based compensation expense 6.7 — 6.7 Loss from EMA investments, net of dividends or distributions 2.1 — 2.1 Changes in: Insurance liabilities 403.3 (179.8) 223.5 Amounts due under reinsurance agreements (344.3) 40.0 (304.3) Income tax liabilities (6.0) 131.1 125.1 Other operating assets and liabilities (31.0) (11.6) (42.6) Other, net 4.6 (0.3) 4.3 Net cash provided by operating activities 115.8 — 115.8 Cash flows - investing activities Net cash used in investing activities (295.9) — (295.9) Cash flows - financing activities Net cash provided by financing activities 82.6 — 82.6 Net decrease in cash (97.5) — (97.5) Cash at beginning of period 133.7 — 133.7 Cash at end of period $ 36.2 $ — $ 36.2

Basis of Presentation and Sig_4

Basis of Presentation and Significant Accounting Policies - Narrative (Details)	9 Months Ended
	Sep. 30, 2023 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments (segments)	4

Basis of Presentation and Sig_5

Basis of Presentation and Significant Accounting Policies - Schedule of Changes in LFPB due to Adoption of ASU 2018-12 (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	$ 1,613.4		$ 1,718
Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits
Whole Life
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	262.7		278.4	$ 317.7	$ 330.6
Changes in cash flow assumptions		$ 0	0	5.2	2.8
Less: Reinsurance recoverable	(58.1)		(63.1)	(0.5)	(0.1)
Less: Change in discount rate assumptions					(0.2)
Net liability for future policy benefits at September 30, 2023	205.1		216.4	317.2	330.3
Whole Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					218.7
Whole Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					111.5
Whole Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					0.4
Term Life
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	112.4		112.2	117.6	120.5
Changes in cash flow assumptions		0	(5.6)	21.5	(4.8)
Less: Reinsurance recoverable	(16.9)		(15.3)	(5.5)	(5.4)
Less: Change in discount rate assumptions					(0.9)
Net liability for future policy benefits at September 30, 2023	95.6		97.1	112.1	114.2
Term Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					93.2
Term Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					27.3
Term Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					0
Experience Life
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	743.2		799.3	1,098.1	1,191.3
Changes in cash flow assumptions		0	0	11	(3.6)
Less: Reinsurance recoverable	(0.6)		(0.8)	(1.1)	(1.3)
Less: Change in discount rate assumptions					(0.7)
Net liability for future policy benefits at September 30, 2023	742.6		798.5	1,097	1,189.3
Experience Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					758.3
Experience Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					433
Experience Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					0
Limited Pay Whole Life
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	48.2		49.6	73.2	69.5
Changes in cash flow assumptions		0	0	2	0
Less: Reinsurance recoverable	(0.1)		0	(0.2)	(0.1)
Less: Change in discount rate assumptions					(0.1)
Net liability for future policy benefits at September 30, 2023	48.1		49.6	73	69.3
Limited Pay Whole Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					51.3
Limited Pay Whole Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					18.2
Limited Pay Whole Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					0
Supplemental health
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	234		264.4	359.1	415.5
Changes in cash flow assumptions		0	0	13.8	(3)
Less: Reinsurance recoverable	(3.5)		(3.4)	0	0
Less: Change in discount rate assumptions					0
Net liability for future policy benefits at September 30, 2023	230.5		261	359.1	415.5
Supplemental health | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					392.5
Supplemental health | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					23
Supplemental health | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					0
Cancer
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	88.5		101.8	140.8	163.5
Accident
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	20		21.8	28.7	31.2
Disability
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	21.6		23.1	29.3	32
Other
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	100.4		114.3	160.3	188.8
SPIA (life contingent)
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	98.2		103.3	124.7	136.5
Changes in cash flow assumptions		$ 0	0	0	0
Less: Reinsurance recoverable	(3.3)		(3.2)	0	0
Less: Change in discount rate assumptions					0
Net liability for future policy benefits at September 30, 2023	$ 94.9		$ 100.1	$ 124.7	136.5
SPIA (life contingent) | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits					115.9
SPIA (life contingent) | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					20.6
SPIA (life contingent) | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions					$ 0

Basis of Presentation and Sig_6

Basis of Presentation and Significant Accounting Policies - Schedule of Changes in DAC due to Adoption of ASU 2018-12 (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	$ 334.9		$ 330.6
Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	21.9	$ 21.6	20.9	$ 19.1	$ 17.8
Term Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	32	31.4	30	27.5	25.6
Experience Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	5.7	5.7	5.8	6	6.2
Limited Pay Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	7.2	7	6.7	5.6	4.4
Indexed Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	16.4	16.1	15.4	13.7	12.9
Supplemental health
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	7.5	7	6.2	4.9	4.3
Total Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs	$ 215	$ 217.2	221.1	$ 223.3	223.1
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs			433.1
Previously Reported | Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					17.8
Previously Reported | Term Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					25.6
Previously Reported | Experience Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					2.6
Previously Reported | Limited Pay Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					4.4
Previously Reported | Indexed Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					11.3
Previously Reported | Supplemental health
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					4.3
Previously Reported | Total Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					137.7
Effect of the Adoption of ASU 2018-12
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs			$ (102.5)
Effect of the Adoption of ASU 2018-12 | Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					0
Effect of the Adoption of ASU 2018-12 | Term Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					0
Effect of the Adoption of ASU 2018-12 | Experience Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					3.6
Effect of the Adoption of ASU 2018-12 | Limited Pay Whole Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					0
Effect of the Adoption of ASU 2018-12 | Indexed Universal Life
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					1.6
Effect of the Adoption of ASU 2018-12 | Supplemental health
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					0
Effect of the Adoption of ASU 2018-12 | Total Annuities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred policy acquisition costs					$ 85.4

Basis of Presentation and Sig_7

Basis of Presentation and Significant Accounting Policies - Schedule of Changes in MRBs due to Adoption of ASU 2018-12 (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Market risk benefit	$ (4.5)	$ (3.6)	$ 0.2	$ 2.9	$ 4.6	$ 4.8	$ 8.6
Less: Reinsurance recoverable							0
Market risk benefits	$ 37.6			$ 79.9			8.6
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Market risk benefit							0.1
Total adjustment for the difference between carrying amount and fair value
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Market risk benefit							8.5
Adjustment for the difference between carrying amount and fair value, except for the difference due to instrument-specific credit risk
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Market risk benefit							6.8
Adjustment for cumulative effect of changes in the instrument-specific credit risk at issuance
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Market risk benefit							$ 1.7

Basis of Presentation and Sig_8

Basis of Presentation and Significant Accounting Policies - Schedule of Changes in the Statement of Equity due to Adoption of ASU 2018-12 (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity	$ 1,051.3		$ 1,098.3	$ 1,092.3
AOCI
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity	(409.9)	$ (359.6)	(399.4)	(433.2)	$ (328.9)	$ (50)
AOCI | Liability for future policy benefits
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							$ (496.3)
AOCI | Deferred policy acquisition costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							71.1
AOCI | Deferred sales inducements
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							0
AOCI | Market risk benefits
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							(1.3)
AOCI | Revision of Prior Period, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							(426.5)
Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity	$ 1,476.5	$ 1,478.6	$ 1,512.4	$ 1,542.4	$ 1,535.3	$ 1,547
Retained earnings | Liability for future policy benefits
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							(0.2)
Retained earnings | Deferred policy acquisition costs
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							0
Retained earnings | Deferred sales inducements
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							0
Retained earnings | Market risk benefits
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							(5.4)
Retained earnings | Revision of Prior Period, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Shareholders' equity							$ (5.6)

Investments - Net Investment In

Investments - Net Investment Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net Investment Income
Total net investment income	$ 118.9	$ 97.6	$ 327.8	$ 300.7
Investment Portfolio
Net Investment Income
Investment expenses	(3.3)	(2.7)	(9.5)	(7.8)
Total net investment income	91.8	70.9	249	223.3
Deposit Asset on Reinsurance
Net Investment Income
Total net investment income	27.1	26.7	78.8	77.4
Fixed maturity securities | Investment Portfolio
Net Investment Income
Net investment income	68.7	63.9	201.6	184.5
Equity securities | Investment Portfolio
Net Investment Income
Net investment income	1.3	1.8	4.7	7.1
Limited partnership interests | Investment Portfolio
Net Investment Income
Net investment income	20.5	5.1	40.6	31.3
Short-term and other investments | Investment Portfolio
Net Investment Income
Net investment income	$ 4.6	$ 2.8	$ 11.6	$ 8.2

Investments - Net Investment Lo

Investments - Net Investment Losses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Gain (Loss) on Securities
Net investment losses	$ (8.4)	$ (12.8)	$ (29.7)	$ (43.8)
Fixed maturity securities
Gain (Loss) on Securities
Net investment losses	(3.4)	(10.7)	(20.5)	(15.9)
Equity securities
Gain (Loss) on Securities
Net investment losses	(2.1)	(4.4)	(6.6)	(32.5)
Short-term investments and other
Gain (Loss) on Securities
Net investment losses	$ (2.9)	$ 2.3	$ (2.6)	$ 4.6

Investments - Net Investment Ga

Investments - Net Investment Gains (Losses) by Transaction Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Credit loss impairments	$ 0	$ (0.6)	$ (0.5)	$ (2.8)
Intent-to-sell impairments	(0.6)	(6.2)	(6.7)	(7.6)
Total impairments	(0.6)	(6.8)	(7.2)	(10.4)
Sales and other, net	(3.5)	(3.9)	(25.2)	(3.9)
Change in fair value - equity securities	(1.4)	(4.4)	5.3	(34.1)
Change in fair value and gains (losses) realized on settlements - derivatives	(2.9)	2.3	(2.6)	4.6
Net investment losses	$ (8.4)	$ (12.8)	$ (29.7)	$ (43.8)

Investments- Allowance for Cred

Investments- Allowance for Credit Loss Impairments on Fixed Maturity Securities (Details) - Fixed maturity securities - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Securities, Available-for-sale, Allowance for Credit Loss
Beginning balance	$ 1.2	$ 9.5	$ 1.2	$ 7.7
Credit losses on fixed maturity securities for which credit losses were not previously reported	0	0	0.5	0
Net increase related to credit losses previously reported	0	0.6	0	2.8
Reduction of credit allowances related to sales	0	0	0	0
Write-offs	0	0	(0.5)	(0.4)
Ending balance	$ 1.2	$ 10.1	$ 1.2	$ 10.1

Investments - Summary of Fair V

Investments - Summary of Fair Value and Amortized Costs (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Amortized Cost, net	$ 5,641.6	$ 5,756.9
Fair Value	4,961.6	5,185
Mortgage-backed securities
Schedule of Investments [Line Items]
Amortized Cost, net	687.2	638.2
Gross Unrealized Gains	0.5	1.3
Gross Unrealized Losses	97.2	69.1
Fair Value	590.5	570.4
Other, including U.S. Treasury securities
Schedule of Investments [Line Items]
Amortized Cost, net	449.6	410
Gross Unrealized Gains	0.3	0.5
Gross Unrealized Losses	85	67.8
Fair Value	364.9	342.7
Municipal bonds
Schedule of Investments [Line Items]
Amortized Cost, net	1,334.1	1,380.9
Gross Unrealized Gains	11.2	16.9
Gross Unrealized Losses	159.8	128.1
Fair Value	1,185.5	1,269.7
Foreign government bonds
Schedule of Investments [Line Items]
Amortized Cost, net	26.1	35.1
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1.6	1.6
Fair Value	24.5	33.5
Corporate bonds
Schedule of Investments [Line Items]
Amortized Cost, net	1,982.7	2,161.2
Gross Unrealized Gains	7.2	12.7
Gross Unrealized Losses	304.6	272.2
Fair Value	1,685.3	1,901.7
Other asset-backed securities
Schedule of Investments [Line Items]
Amortized Cost, net	1,161.9	1,131.5
Gross Unrealized Gains	3.6	3.6
Gross Unrealized Losses	54.6	68.1
Fair Value	1,110.9	1,067
Total
Schedule of Investments [Line Items]
Amortized Cost, net	5,641.6	5,756.9
Gross Unrealized Gains	22.8	35
Gross Unrealized Losses	702.8	606.9
Fair Value	4,961.6	5,185
FNMA
Schedule of Investments [Line Items]
Fair Value	323.6	330.8
FHLMC
Schedule of Investments [Line Items]
Fair Value	305.8	273.3
GNMA
Schedule of Investments [Line Items]
Fair Value	$ 78.4	$ 86.2

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Investment grade rating	96.80%
Reverse repurchase agreement, cash to value percentage	95%
Securities sold under agreements to repurchase	$ 0.2	$ 70.2
Fair Value	4,961.6	5,185
FHLB funding agreements	904.5	792.5
FHLB of Chicago
Schedule of Investments [Line Items]
Fair Value	971	860.4
Governmental Agencies as Required by Law in Various States
Schedule of Investments [Line Items]
Fair Value	28.6	28.6
Fair Value
Schedule of Investments [Line Items]
Securities sold under agreements to repurchase	$ 0.4	$ 73.3

Investments - Fair Value and Gr

Investments - Fair Value and Gross Unrealized Losses (Details) $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 security	Sep. 30, 2023	Sep. 30, 2023 position	Dec. 31, 2022 USD ($)	Dec. 31, 2022 security	Dec. 31, 2022	Dec. 31, 2022 position
Fixed maturity securities, Gross Unrealized Losses
Number of positions with a gross unrealized loss, 12 Months or Less (security) | security		669				2,515
Number of positions with a gross unrealized loss, more than 12 months (security)		2,474		2,474		587		587
Number of positions with a gross unrealized loss, Total (security) | security		3,143				3,102
Fair value as a percentage of total fixed maturities and equity securities fair value, 12 Months or Less (percent)			18.20%				68.20%
Fair value as a percentage of total fixed maturities and equity securities fair value, more than 12 months (percent)			68.20%				14.20%
Fair value as a percentage of total fixed maturities and equity securities fair value, Total (percent)			86.40%				82.40%
Total
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	$ 901.5				$ 3,533.7
Fixed maturity securities, Fair Value, More than 12 Months	3,384.9				734.2
Fixed maturity securities, Fair Value, Total	4,286.4				4,267.9
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	44				461.8
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	658.8				145.1
Fixed maturity securities, Gross Unrealized Losses, Total	702.8				606.9
Mortgage-backed securities
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	137.1				458.3
Fixed maturity securities, Fair Value, More than 12 Months	438.2				52.6
Fixed maturity securities, Fair Value, Total	575.3				510.9
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	5.3				54.4
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	91.9				14.7
Fixed maturity securities, Gross Unrealized Losses, Total	97.2				69.1
Other
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	91.9				242.7
Fixed maturity securities, Fair Value, More than 12 Months	268.5				65.8
Fixed maturity securities, Fair Value, Total	360.4				308.5
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	3.7				34.1
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	81.3				33.7
Fixed maturity securities, Gross Unrealized Losses, Total	85				67.8
Municipal bonds
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	331.1				911.6
Fixed maturity securities, Fair Value, More than 12 Months	729.9				42.2
Fixed maturity securities, Fair Value, Total	1,061				953.8
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	13.7				113.7
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	146.1				14.4
Fixed maturity securities, Gross Unrealized Losses, Total	159.8				128.1
Foreign government bonds
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	1.4				32.7
Fixed maturity securities, Fair Value, More than 12 Months	23.1				0.4
Fixed maturity securities, Fair Value, Total	24.5				33.1
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	0.1				1.4
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	1.5				0.2
Fixed maturity securities, Gross Unrealized Losses, Total	1.6				1.6
Corporate bonds
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	204.9				1,345
Fixed maturity securities, Fair Value, More than 12 Months	1,120.8				148.9
Fixed maturity securities, Fair Value, Total	1,325.7				1,493.9
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	18.6				221.1
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	286				51.1
Fixed maturity securities, Gross Unrealized Losses, Total	304.6				272.2
Other asset-backed securities
Fixed maturity securities, Fair Value
Fixed maturity securities, Fair Value, 12 Months or Less	135.1				543.4
Fixed maturity securities, Fair Value, More than 12 Months	804.4				424.3
Fixed maturity securities, Fair Value, Total	939.5				967.7
Fixed maturity securities, Gross Unrealized Losses
Fixed maturity securities, Gross Unrealized Losses, 12 Months or Less	2.6				37.1
Fixed maturity securities, Gross Unrealized Losses, More than 12 Months	52				31
Fixed maturity securities, Gross Unrealized Losses, Total	$ 54.6				$ 68.1

Investments - Fixed Maturity Se

Investments - Fixed Maturity Securities in Continuous Loss Position (Details)	Sep. 30, 2023 security	Sep. 30, 2023 position	Dec. 31, 2022 security	Dec. 31, 2022 position
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)	2,474	2,474	587	587
AAA
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		241		67
AA
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		1,030		217
A
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		434		94
BBB
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		474		93
BB
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		159		68
B
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		64		31
CCC or lower
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		7		2
Not rated
Gain (Loss) on Securities
Number of positions with a gross unrealized loss (Security)		65		15

Investments - Distribution of F

Investments - Distribution of Fixed Maturity Securities by Expected Maturity (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Percent of Total Fair Value
Due in 1 year Or less (percent)	5.60%	4.40%
Due after 1 year through 5 years (percent)	27.10%	26.30%
Due after 5 years through 10 years (percent)	27.40%	27.90%
Due after 10 years through 20 years (percent)	23.90%	25%
Due after 20 years (percent)	16%	16.40%
Total (percent)	100%	100%
Fair Value
Due in 1 year or less	$ 278.3
Due after 1 year through 5 years	1,343.4
Due after 5 years through 10 years	1,357.3
Due after 10 years through 20 years	1,187.1
Due after 20 years	795.5
Total	4,961.6	$ 5,185
Amortized Cost, net
Due in 1 year or less	287.8
Due after 1 year through 5 years	1,420.7
Due after 5 years through 10 years	1,480.7
Due after 10 years through 20 years	1,417.8
Due after 20 years	1,034.6
Amortized Cost, net	$ 5,641.6	$ 5,756.9
Average option-adjusted duration, in years	6 years 1 month 6 days	6 years 4 months 24 days

Investments - Sales of Fixed Ma

Investments - Sales of Fixed Maturity and Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fixed maturity securities
Proceeds received	$ 135.2	$ 164.6	$ 341.4	$ 529.9
Gross gains realized	1.4	1.1	2	4.7
Gross losses realized	(2.8)	(5)	(13.9)	(10.2)
Equity securities
Proceeds received	6.8	0.2	16.6	6
Gross gains realized	0	0	0	1.7
Gross losses realized	$ (0.5)	$ 0	$ (11.8)	$ (0.1)

Investments - Reconciliation of

Investments - Reconciliation of Net Unrealized Investment Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance			$ 1,098.3
Ending balance	$ 1,051.3	$ 1,092.3	1,051.3	$ 1,092.3
Net unrealized investment gains (losses) on securities
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	(393.7)	(281.8)	(449.6)	347.1
Ending balance	(534.7)	(496.8)	(534.7)	(496.8)
Net unrealized investment gains (losses) on securities | Fixed maturity securities
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	(393.7)	(281.8)	(449.6)	347.1
Change in net unrealized investment gains (losses) on fixed maturity securities	(143.7)	(223.4)	(101.3)	(856.5)
Reclassification of net investment losses on fixed maturity securities to net income	2.7	8.4	16.2	12.6
Ending balance	$ (534.7)	$ (496.8)	$ (534.7)	$ (496.8)

Investments - Carrying Amount o

Investments - Carrying Amount of Equity Method Limited Partnership Interests (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Schedule of Equity Method Investments
Limited partnership interests	$ 1,142.6	$ 983.7
Commercial mortgage loan funds
Schedule of Equity Method Investments
Limited partnership interests	671.6	593.6
Real estate equity funds
Schedule of Equity Method Investments
Limited partnership interests	111.2	71.3
Private equity funds
Schedule of Equity Method Investments
Limited partnership interests	83.9	76.3
Infrastructure equity funds
Schedule of Equity Method Investments
Limited partnership interests	77.9	72
Infrastructure debt funds
Schedule of Equity Method Investments
Limited partnership interests	63.4	60
Other funds
Schedule of Equity Method Investments
Limited partnership interests	$ 134.6	$ 110.5

Investments - Offsetting of Ass

Investments - Offsetting of Assets and Liabilities (Details) - Free-standing derivatives - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Asset derivatives:
Gross Amounts	$ 9.3	$ 6.8
Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Net Amounts of Assets/ Liabilities Presented in the Consolidated Balance Sheets	9.3	6.8
Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments	0	0
Gross Amounts Not Offset in the Consolidated Balance Sheets, Cash Collateral Received	9.2	5.9
Net Amount	$ 0.1
Net Amount		$ 0.9

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Percentage of level 3 invested assets in total investment portfolio	9.20%		9.20%
Net gains/(losses) included in net income	$ 0.2	$ (0.9)	$ 0.2	$ (3.2)
Net investment gains included in net income related to financial liabilities	$ 3.2	$ 6.3	$ 5.6	$ 13.9

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Financial Instruments Measured and Carried at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Financial Assets
Total fixed maturity securities	$ 4,961.6	$ 5,185
Equity securities	77	99.6
Mortgage-backed securities
Financial Assets
Total fixed maturity securities	590.5	570.4
Other, including U.S. Treasury securities
Financial Assets
Total fixed maturity securities	364.9	342.7
Municipal bonds
Financial Assets
Total fixed maturity securities	1,185.5	1,269.7
Foreign government bonds
Financial Assets
Total fixed maturity securities	24.5	33.5
Corporate bonds
Financial Assets
Total fixed maturity securities	1,685.3	1,901.7
Other asset-backed securities
Financial Assets
Total fixed maturity securities	1,110.9	1,067
Carrying Amount | Recurring
Financial Assets
Total fixed maturity securities	4,961.6	5,185
Equity securities	77	99.6
Short-term investments	113.5	109.4
Other investments	43.1	38.6
Totals	5,195.2	5,432.6
Separate Account variable annuity assets	2,974	2,792.3
Financial Liabilities	80.3	92.5
Carrying Amount | Recurring | Mortgage-backed securities
Financial Assets
Total fixed maturity securities	590.5	570.4
Carrying Amount | Recurring | Other, including U.S. Treasury securities
Financial Assets
Total fixed maturity securities	364.8	342.6
Carrying Amount | Recurring | Municipal bonds
Financial Assets
Total fixed maturity securities	1,185.6	1,269.7
Carrying Amount | Recurring | Foreign government bonds
Financial Assets
Total fixed maturity securities	24.5	33.6
Carrying Amount | Recurring | Corporate bonds
Financial Assets
Total fixed maturity securities	1,685.3	1,901.7
Carrying Amount | Recurring | Other asset-backed securities
Financial Assets
Total fixed maturity securities	1,110.9	1,067
Fair Value | Recurring
Financial Assets
Total fixed maturity securities	4,961.6	5,185
Equity securities	77	99.6
Short-term investments	113.5	109.4
Other investments	43.1	38.6
Totals	5,195.2	5,432.6
Separate Account variable annuity assets	2,974	2,792.3
Financial Liabilities	80.3	92.5
Fair Value | Recurring | Level 1
Financial Assets
Total fixed maturity securities	54.2	36.8
Equity securities	17.2	23.3
Short-term investments	113.5	109.4
Other investments	0	0
Totals	184.9	169.5
Separate Account variable annuity assets	2,974	2,792.3
Financial Liabilities	0	0
Fair Value | Recurring | Level 2
Financial Assets
Total fixed maturity securities	4,432	4,724.9
Equity securities	57.6	74.3
Short-term investments	0	0
Other investments	43.1	38.6
Totals	4,532.7	4,837.8
Separate Account variable annuity assets	0	0
Financial Liabilities	2	1.2
Fair Value | Recurring | Level 3
Financial Assets
Total fixed maturity securities	475.4	423.3
Equity securities	2.2	2
Short-term investments	0	0
Other investments	0	0
Totals	477.6	425.3
Separate Account variable annuity assets	0	0
Financial Liabilities	78.3	91.3
Fair Value | Recurring | Mortgage-backed securities
Financial Assets
Total fixed maturity securities	590.5	570.4
Fair Value | Recurring | Mortgage-backed securities | Level 1
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Mortgage-backed securities | Level 2
Financial Assets
Total fixed maturity securities	588	567.8
Fair Value | Recurring | Mortgage-backed securities | Level 3
Financial Assets
Total fixed maturity securities	2.5	2.6
Fair Value | Recurring | Other, including U.S. Treasury securities
Financial Assets
Total fixed maturity securities	364.8	342.6
Fair Value | Recurring | Other, including U.S. Treasury securities | Level 1
Financial Assets
Total fixed maturity securities	44.2	24.6
Fair Value | Recurring | Other, including U.S. Treasury securities | Level 2
Financial Assets
Total fixed maturity securities	320.6	318
Fair Value | Recurring | Other, including U.S. Treasury securities | Level 3
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Municipal bonds
Financial Assets
Total fixed maturity securities	1,185.6	1,269.7
Fair Value | Recurring | Municipal bonds | Level 1
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Municipal bonds | Level 2
Financial Assets
Total fixed maturity securities	1,115.9	1,215.3
Fair Value | Recurring | Municipal bonds | Level 3
Financial Assets
Total fixed maturity securities	69.7	54.4
Fair Value | Recurring | Foreign government bonds
Financial Assets
Total fixed maturity securities	24.5	33.6
Fair Value | Recurring | Foreign government bonds | Level 1
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Foreign government bonds | Level 2
Financial Assets
Total fixed maturity securities	24.5	33.6
Fair Value | Recurring | Foreign government bonds | Level 3
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Corporate bonds
Financial Assets
Total fixed maturity securities	1,685.3	1,901.7
Fair Value | Recurring | Corporate bonds | Level 1
Financial Assets
Total fixed maturity securities	10	12.2
Fair Value | Recurring | Corporate bonds | Level 2
Financial Assets
Total fixed maturity securities	1,370.1	1,628.2
Fair Value | Recurring | Corporate bonds | Level 3
Financial Assets
Total fixed maturity securities	305.2	261.3
Fair Value | Recurring | Other asset-backed securities
Financial Assets
Total fixed maturity securities	1,110.9	1,067
Fair Value | Recurring | Other asset-backed securities | Level 1
Financial Assets
Total fixed maturity securities	0	0
Fair Value | Recurring | Other asset-backed securities | Level 2
Financial Assets
Total fixed maturity securities	1,012.9	962
Fair Value | Recurring | Other asset-backed securities | Level 3
Financial Assets
Total fixed maturity securities	$ 98	$ 105

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Rollforward of Instruments Measured on Recurring Basis (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financial Assets
Beginning balance	$ 478,800,000	$ 420,000,000	$ 425,300,000	$ 371,400,000
Transfers into Level 3	0	33,500,000	36,900,000	179,300,000
Transfers out of Level 3	(3,700,000)	(34,800,000)	(3,700,000)	(42,900,000)
Total gains or losses
Net gains/losses included in net income	200,000	(900,000)	200,000	(3,200,000)
Net unrealized gains/losses included in OCI	(4,900,000)	(16,600,000)	(6,700,000)	(41,600,000)
Purchases	19,200,000	16,500,000	54,600,000	21,400,000
Issuances	0	0	0	0
Sales	0	0	(7,700,000)	(2,100,000)
Settlements	0	0	0	0
Paydowns, maturities and distributions	(12,000,000)	(15,400,000)	(21,300,000)	(80,000,000)
Ending balance	477,600,000	402,300,000	477,600,000	402,300,000
Financial Liabilities
Beginning balance	83,600,000	97,800,000	91,300,000	111,400,000
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Total gains or losses
Net gains/losses included in net income	(3,200,000)	(6,300,000)	(5,600,000)	(13,900,000)
Net unrealized gains/losses included in OCI	400,000	0	(300,000)	(2,400,000)
Purchases	0	0	0	0
Issuances	2,000,000	2,700,000	6,300,000	4,800,000
Sales	0	0	0	0
Settlements	0	0	0	0
Paydowns, maturities and distributions	(4,500,000)	(1,400,000)	(13,400,000)	(7,100,000)
Ending balance	78,300,000	92,800,000	78,300,000	92,800,000
Level 3
Total gains or losses
Net gains/losses included in net income	200,000	(900,000)	200,000	(3,200,000)
Total gains or losses
Net gains/losses included in net income	(3,200,000)	(6,300,000)	(5,600,000)	(13,900,000)
Municipal bonds
Financial Assets
Beginning balance	63,900,000	51,000,000	54,400,000	60,800,000
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	(3,200,000)
Total gains or losses
Net gains/losses included in net income	0	0	0	0
Net unrealized gains/losses included in OCI	5,900,000	(5,300,000)	6,500,000	(11,600,000)
Purchases	0	200,000	9,500,000	200,000
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Paydowns, maturities and distributions	(100,000)	7,400,000	(700,000)	7,100,000
Ending balance	69,700,000	53,300,000	69,700,000	53,300,000
Corporate bonds
Financial Assets
Beginning balance	311,500,000	270,500,000	261,300,000	210,300,000
Transfers into Level 3	0	20,500,000	36,100,000	144,000,000
Transfers out of Level 3	(3,700,000)	(34,800,000)	(3,700,000)	(34,900,000)
Total gains or losses
Net gains/losses included in net income	0	0	0	0
Net unrealized gains/losses included in OCI	(12,800,000)	(7,400,000)	(14,100,000)	(18,700,000)
Purchases	17,500,000	8,400,000	43,200,000	13,300,000
Issuances	0	0	0	0
Sales	0	0	(7,700,000)	0
Settlements	0	0	0	0
Paydowns, maturities and distributions	(7,300,000)	(17,400,000)	(9,900,000)	(74,200,000)
Ending balance	305,200,000	239,800,000	305,200,000	239,800,000
Mortgage Backed and Other Asset- Backed Securities
Financial Assets
Beginning balance	101,400,000	97,100,000	107,600,000	98,900,000
Transfers into Level 3	0	12,200,000	800,000	34,500,000
Transfers out of Level 3	0	0	0	(4,800,000)
Total gains or losses
Net gains/losses included in net income	0	(800,000)	0	(3,100,000)
Net unrealized gains/losses included in OCI	2,000,000	(3,900,000)	900,000	(11,300,000)
Purchases	1,700,000	7,900,000	1,900,000	7,900,000
Issuances	0	0		0
Sales	0	0		(2,100,000)
Settlements	0	0		0
Paydowns, maturities and distributions	(4,600,000)	(5,300,000)	(10,700,000)	(12,800,000)
Ending balance	100,500,000	107,200,000	100,500,000	107,200,000
Total Fixed Maturity Securities
Financial Assets
Beginning balance	476,800,000	418,600,000	423,300,000	370,000,000
Transfers into Level 3	0	32,700,000	36,900,000	178,500,000
Transfers out of Level 3	(3,700,000)	(34,800,000)	(3,700,000)	(42,900,000)
Total gains or losses
Net gains/losses included in net income	0	(800,000)	0	(3,100,000)
Net unrealized gains/losses included in OCI	(4,900,000)	(16,600,000)	(6,700,000)	(41,600,000)
Purchases	19,200,000	16,500,000	54,600,000	21,400,000
Issuances	0	0	0	0
Sales	0	0	(7,700,000)	(2,100,000)
Settlements	0	0	0	0
Paydowns, maturities and distributions	(12,000,000)	(15,300,000)	(21,300,000)	(79,900,000)
Ending balance	475,400,000	400,300,000	475,400,000	400,300,000
Equity securities
Financial Assets
Beginning balance	2,000,000	1,400,000	2,000,000	1,400,000
Transfers into Level 3	0	800,000	0	800,000
Transfers out of Level 3	0	0	0	0
Total gains or losses
Net gains/losses included in net income	200,000	(100,000)	200,000	(100,000)
Net unrealized gains/losses included in OCI	0	0	0	0
Purchases	0	0	0	0
Issuances	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Paydowns, maturities and distributions	0	(100,000)	0	(100,000)
Ending balance	$ 2,200,000	$ 2,000,000	$ 2,200,000	$ 2,000,000

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Quantitative Information about Level 3 Fair Value Measurements (Details) $ in Millions	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	$ 4,961.6		$ 5,185
Equity securities at fair value	77		99.6
Net MRBs	(4.5)	$ (3.6)	0.2	$ 2.9	$ 4.6	$ 4.8	$ 8.6
Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	4,961.6		5,185
Equity securities at fair value	77		99.6
Financial Liabilities	80.3		92.5
Mortgage-backed securities
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	590.5		570.4
Mortgage-backed securities | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	590.5		570.4
Municipal bonds
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,185.5		1,269.7
Municipal bonds | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,185.6		1,269.7
Corporate bonds
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,685.3		1,901.7
Corporate bonds | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,685.3		1,901.7
Other asset-backed securities
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,110.9		1,067
Other asset-backed securities | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	1,110.9		1,067
Level 3 | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	475.4		423.3
Equity securities at fair value	2.2		2
Totals	477.6		425.3
Financial Liabilities	78.3		91.3
Derivatives embedded in fixed indexed annuity products	82.8
Net MRBs	(4.5)
Level 3 | Fair Value | Recurring | Internal
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	47.4		9.5
Equity securities at fair value	0		0
Totals	47.4		9.5
Financial Liabilities	78.3		91.3
Level 3 | Fair Value | Recurring | External
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	428		413.8
Equity securities at fair value	2.2		2
Totals	430.2		415.8
Financial Liabilities	0		0
Level 3 | Mortgage-backed securities | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	2.5		2.6
Level 3 | Mortgage-backed securities | Fair Value | Recurring | Internal
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	0		0
Level 3 | Mortgage-backed securities | Fair Value | Recurring | External
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	2.5		2.6
Level 3 | Municipal bonds | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	69.7		54.4
Level 3 | Municipal bonds | Fair Value | Recurring | Internal
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	0		0
Level 3 | Municipal bonds | Fair Value | Recurring | External
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	69.7		54.4
Level 3 | Corporate bonds | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	305.2		261.3
Level 3 | Corporate bonds | Fair Value | Recurring | Internal
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	47.4		9.5
Level 3 | Corporate bonds | Fair Value | Recurring | External
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	257.8		251.8
Level 3 | Other asset-backed securities | Fair Value | Recurring
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	98		105
Level 3 | Other asset-backed securities | Fair Value | Recurring | Internal
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	0		0
Level 3 | Other asset-backed securities | Fair Value | Recurring | External
Fair Value Measurement Inputs and Valuation Techniques
Fair Value	$ 98		$ 105
Minimum | Level 3 | discounted cash flow | option budget
Fair Value Measurement Inputs and Valuation Techniques
Derivatives embedded in fixed indexed annuity products, measurement input	0.009
Minimum | Level 3 | Corporate bonds | discounted cash flow | yield
Fair Value Measurement Inputs and Valuation Techniques
Debt securities, measurement input	0.083
Maximum | Level 3 | discounted cash flow | option budget
Fair Value Measurement Inputs and Valuation Techniques
Derivatives embedded in fixed indexed annuity products, measurement input	0.038
Maximum | Level 3 | Corporate bonds | discounted cash flow | yield
Fair Value Measurement Inputs and Valuation Techniques
Debt securities, measurement input	0.174
Weighted Average | Level 3 | discounted cash flow | lapse rate
Fair Value Measurement Inputs and Valuation Techniques
Derivatives embedded in fixed indexed annuity products, measurement input	0.054
Net MRBs, measurement input	0.059
Weighted Average | Level 3 | discounted cash flow | mortality multiplier
Fair Value Measurement Inputs and Valuation Techniques
Derivatives embedded in fixed indexed annuity products, measurement input	0.678
Net MRBs, measurement input	0.678
Weighted Average | Level 3 | discounted cash flow | non-performance adjustment
Fair Value Measurement Inputs and Valuation Techniques
Derivatives embedded in fixed indexed annuity products, measurement input	0.050

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Financial Instrument Not Carried at Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Level 1
Investments
Other investments	$ 0	$ 0
Deposit asset on reinsurance	0	0
Financial Liabilities
Investment contract and future policy benefit reserves, fixed annuity contracts	0	0
Investment contract and future policy benefit reserves, account values on life contracts	0	0
Other policyholder funds	0	0
Reverse repurchase agreements	0	0
Short-term debt	0	0
Long-term debt	0	0
Level 2
Investments
Other investments	0	0
Deposit asset on reinsurance	0	0
Financial Liabilities
Investment contract and future policy benefit reserves, fixed annuity contracts	0	0
Investment contract and future policy benefit reserves, account values on life contracts	0	0
Other policyholder funds	904.9	810.7
Reverse repurchase agreements	0.4	73.3
Short-term debt	0	0
Long-term debt	541.1	240.5
Level 3
Investments
Other investments	185	170.9
Deposit asset on reinsurance	2,070.3	2,207.2
Financial Liabilities
Investment contract and future policy benefit reserves, fixed annuity contracts	4,821.1	4,901.3
Investment contract and future policy benefit reserves, account values on life contracts	112.8	107.7
Other policyholder funds	11	52.3
Reverse repurchase agreements	0	0
Short-term debt	0	249
Long-term debt	0	0
Carrying Amount
Investments
Other investments	181.6	167.4
Deposit asset on reinsurance	2,515.7	2,516.6
Financial Liabilities
Investment contract and future policy benefit reserves, fixed annuity contracts	4,920.8	4,988.5
Investment contract and future policy benefit reserves, account values on life contracts	116.8	111.9
Other policyholder funds	915.9	863
Reverse repurchase agreements	0.2	70.2
Short-term debt	0	249
Long-term debt	546.1	249
Fair Value
Investments
Other investments	185	170.9
Deposit asset on reinsurance	2,070.3	2,207.2
Financial Liabilities
Investment contract and future policy benefit reserves, fixed annuity contracts	4,821.1	4,901.3
Investment contract and future policy benefit reserves, account values on life contracts	112.8	107.7
Other policyholder funds	915.9	863
Reverse repurchase agreements	0.4	73.3
Short-term debt	0	249
Long-term debt	$ 541.1	$ 240.5

Short-Duration Insurance Cont_3

Short-Duration Insurance Contracts - Summary of Reinsurance Reserve Balances (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information
Beginning gross reserves			$ 564
Claims and claim expense payments for claims occurring during:
Ending gross reserves	$ 586.6		586.6
Property & Casualty
Segment Reporting Information
Beginning gross reserves	415.8	$ 378.4	388.7	$ 362.4
Less: reinsurance recoverables	104.3	109.8	100.8	110.3
Net reserves, beginning of period	311.5	268.6	287.9	252.1
Incurred claims and claim expenses:
Claims occurring in the current period	149.2	120.3	430	372.8
Increase (decrease) in estimated reserves for claims occurring in prior periods	0	2	0	8
Total claims and claim expenses incurred	149.2	122.3	430	380.8
Claims and claim expense payments for claims occurring during:
Current period	115.9	102.8	246.7	221.1
Prior periods	30.9	29.7	157.3	153.4
Total claims and claim expense payments	146.8	132.5	404	374.5
Net reserves, end of period	313.9	258.4	313.9	258.4
Plus: reinsurance recoverables	105.4	109	105.4	109
Ending gross reserves	419.3	367.4	419.3	367.4
Group Benefits
Segment Reporting Information
Beginning gross reserves	121.9	130.2	121.6	125.4
Less: reinsurance recoverables	28.2	29.6	27.9	28.6
Net reserves, beginning of period	93.7	100.6	93.7	96.8
Incurred claims and claim expenses:
Claims occurring in the current period	20	20.7	61	65.6
Increase (decrease) in estimated reserves for claims occurring in prior periods	(7.6)	(9.7)	(15.5)	(11.7)
Total claims and claim expenses incurred	12.4	11	45.5	53.9
Claims and claim expense payments for claims occurring during:
Current period	12.2	10.4	25.3	26.2
Prior periods	4.3	5.4	24.3	28.7
Total claims and claim expense payments	16.5	15.8	49.6	54.9
Net reserves, end of period	89.6	95.8	89.6	95.8
Plus: reinsurance recoverables	27.5	28	27.5	28
Ending gross reserves	$ 117.1	$ 123.8	$ 117.1	$ 123.8

Short- Duration Insurance Contr

Short- Duration Insurance Contracts - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Property & Casualty
Net Amount at Risk by Product and Guarantee [Line Items]
Favorable (unfavorable) development of total reserves for claims occurring in prior years	$ 0	$ (2,000,000)	$ 0	$ (8,000,000)
Group Benefits
Net Amount at Risk by Product and Guarantee [Line Items]
Favorable (unfavorable) development of total reserves for claims occurring in prior years			$ 15,500,000	$ (11,700,000)

Short-Duration Insurance Cont_4

Short-Duration Insurance Contracts - Reconciliation of Net Incurred and Paid Claims (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Unpaid claims and claim expenses	$ 586.6		$ 564
Total short-duration insurance contracts
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Unpaid claims and claim expenses	536.4		510.3
Property & Casualty
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Unpaid claims and claim expenses	419.3		388.7
Group Benefits
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Unpaid claims and claim expenses	117.1	$ 121.9	121.6	$ 123.8	$ 130.2	$ 125.4
Other than short-duration
Short-Duration Insurance Contracts, Historical Claims Duration [Line Items]
Unpaid claims and claim expenses	$ 50.2		$ 53.7

Long-Duration Insurance Contr_3

Long-Duration Insurance Contracts - Balances of and Changes in the LFPB (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2023	Dec. 31, 2020
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits	$ 1,613.4	$ 1,613.4	$ 1,718
Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits
Whole Life
Present Value of Expected Net Premiums
Beginning balance	217.5	215.1	183	$ 176.5
Beginning period (including reserves)				260.7
Beginning balance at original discount rate	247	245.9	157.6	143.5
Beginning balance at original discount rate (including reserves)			239.3
Change in cash flow assumptions			0	5.2	$ 0	$ 2.4
Actual variances from expected experience			2.6	7.2	0.8	8.8
Adjusted balance			248.5	251.7	247.8	154.7
Issuances	2.2	7.6	12.5	13.3
Interest accruals	1.8	5.4	6.7	6.2
Net premiums collected	(5.2)	(14.9)	(25)	(16.6)
Ending balance at original discount rate	246.6	246.6	245.9	157.6
Effect of changes in discount rate assumptions	(41.7)	(41.7)	(30.8)	25.4
Ending balance	204.9	204.9	215.1	183
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	507.1	493.6	500.7	507.1
Beginning balance (including reserves)			660.4
Beginning balance at original discount rate	591.2	591.2	581.9	386.3	588.7	362.5
Beginning balance at original discount rate (including reserves)			566.1
Changes in cash flow assumptions			0	5.2	0	2.8
Actual variances from expected experience			2.7	7.7	0.8	8.7
Adjusted balance			584.6	579	589.5	374
Issuances	2.2	7.7	12.4	13.3
Interest accruals	4.8	14.2	18	17.1
Benefit payments	(5.3)	(15.3)	(27.5)	(18.1)
Ending balance at original discount rate	591.2	591.2	581.9	386.3
Effect of changes in discount rate assumptions	(123.5)	(123.5)	(88.3)	114.4
Ending balance	467.7	467.7	493.6	500.7
Ending balance (including reserves)				660.4
Liability for future policy benefits	262.7	262.7	278.4	317.7		330.6
Less: Reinsurance recoverable	(58.1)	(58.1)	(63.1)	(0.5)		(0.1)
Less: Change in discount rate assumptions						(0.2)
Net liability for future policy benefits, after reinsurance recoverable	204.6	204.6	215.3
Impact of flooring on net liability for future policy benefits	0.5	0.5	1.1
Net liability for future policy benefits at September 30, 2023	205.1	205.1	216.4	317.2		330.3
Whole Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						218.7
Whole Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						111.5
Whole Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0.4
Whole Life | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Whole Life | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Term Life
Present Value of Expected Net Premiums
Beginning balance	240.3	234.7	253.1	244.1
Beginning period (including reserves)				264.4
Beginning balance at original discount rate	265.1	265.4	221.1	200.8
Beginning balance at original discount rate (including reserves)			235.4
Change in cash flow assumptions			(5.3)	18.7	0	(4.5)
Actual variances from expected experience			(2.2)	(4.2)	(1.2)	6.9
Adjusted balance			257.9	249.9	263.9	203.2
Issuances	6	19	28	29.8
Interest accruals	2.6	7.8	9	7.9
Net premiums collected	(6.3)	(18.5)	(21.5)	(19.8)
Ending balance at original discount rate	266.2	266.2	265.4	221.1
Effect of changes in discount rate assumptions	(38.1)	(38.1)	(30.7)	32
Ending balance	228.1	228.1	234.7	253.1
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	360.6	347	370.6	364.7
Beginning balance (including reserves)			411.5
Beginning balance at original discount rate	411.4	411.4	401	319.5	406.4	294
Beginning balance at original discount rate (including reserves)			360
Changes in cash flow assumptions			(5.6)	21.5	0	(4.8)
Actual variances from expected experience			0.4	(4.7)	(0.3)	7.2
Adjusted balance			395.8	376.8	406.1	296.4
Issuances	6.4	19.6	28.3	29.8
Interest accruals	3.9	11.4	14.4	12
Benefit payments	(5)	(15.4)	(18.5)	(18.7)
Ending balance at original discount rate	411.4	411.4	401	319.5
Effect of changes in discount rate assumptions	(71)	(71)	(54)	51.1
Ending balance	340.4	340.4	347	370.6
Ending balance (including reserves)				411.5
Liability for future policy benefits	112.4	112.4	112.2	117.6		120.5
Less: Reinsurance recoverable	(16.9)	(16.9)	(15.3)	(5.5)		(5.4)
Less: Change in discount rate assumptions						(0.9)
Net liability for future policy benefits, after reinsurance recoverable	95.5	95.5	96.9
Impact of flooring on net liability for future policy benefits	0.1	0.1	0.2
Net liability for future policy benefits at September 30, 2023	95.6	95.6	97.1	112.1		114.2
Term Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						93.2
Term Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						27.3
Term Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Term Life | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Term Life | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Experience Life
Present Value of Expected Net Premiums
Beginning balance	68.1	68.3	74.6	78
Beginning period (including reserves)				74.6
Beginning balance at original discount rate	64.7	65.5	55.8	55.2
Beginning balance at original discount rate (including reserves)			55.9
Change in cash flow assumptions			0	9.1	0	(3.3)
Actual variances from expected experience			1.4	3	0.7	6.3
Adjusted balance			66.9	68	65.4	58.2
Issuances	0	0	0	0
Interest accruals	1	2.8	3.3	3.2
Net premiums collected	(1.7)	(5)	(5.8)	(5.6)
Ending balance at original discount rate	64.7	64.7	65.5	55.8
Effect of changes in discount rate assumptions	(0.4)	(0.4)	2.8	18.8
Ending balance	64.3	64.3	68.3	74.6
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	871.5	867.5	1,172.7	1,269.3
Beginning balance (including reserves)			1,172.7
Beginning balance at original discount rate	796.4	796.4	805.2	802.5	799.6	813.5
Beginning balance at original discount rate (including reserves)			802.6
Changes in cash flow assumptions			0	11	0	(3.6)
Actual variances from expected experience			2	3.6	1.1	6.6
Adjusted balance			807.2	817.2	800.7	816.5
Issuances	0	0	0	0
Interest accruals	11.7	35.5	47.4	47.9
Benefit payments	(16)	(46.3)	(59.4)	(61.9)
Ending balance at original discount rate	796.4	796.4	805.2	802.5
Effect of changes in discount rate assumptions	11	11	62.3	370.2
Ending balance	807.4	807.4	867.5	1,172.7
Ending balance (including reserves)				1,172.7
Liability for future policy benefits	743.2	743.2	799.3	1,098.1		1,191.3
Less: Reinsurance recoverable	(0.6)	(0.6)	(0.8)	(1.1)		(1.3)
Less: Change in discount rate assumptions						(0.7)
Net liability for future policy benefits, after reinsurance recoverable	742.6	742.6	798.5
Impact of flooring on net liability for future policy benefits	0	0	0
Net liability for future policy benefits at September 30, 2023	742.6	742.6	798.5	1,097		1,189.3
Experience Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						758.3
Experience Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						433
Experience Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Experience Life | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Experience Life | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Limited Pay Whole Life
Present Value of Expected Net Premiums
Beginning balance	31.7	29.7	29.7	25.4
Beginning period (including reserves)				29.7
Beginning balance at original discount rate	34.2	32.4	27.2	22
Beginning balance at original discount rate (including reserves)			27.2
Change in cash flow assumptions			0	2	0	0
Actual variances from expected experience			1	1.6	(0.3)	1
Adjusted balance			33.4	30.8	33.9	23
Issuances	1.2	3.3	6.3	10.2
Interest accruals	0.4	1	1.1	0.8
Net premiums collected	(1.5)	(3.7)	(5.8)	(6.8)
Ending balance at original discount rate	34	34	32.4	27.2
Effect of changes in discount rate assumptions	(3.6)	(3.6)	(2.7)	2.5
Ending balance	30.4	30.4	29.7	29.7
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	85.3	79.4	102.9	95
Beginning balance (including reserves)			102.9
Beginning balance at original discount rate	104.3	104.3	98.6	86.6	102.6	73.4
Beginning balance at original discount rate (including reserves)			86.6
Changes in cash flow assumptions			0	2	0	0
Actual variances from expected experience			1.2	1.4	(0.3)	1.1
Adjusted balance			99.8	90	102.3	74.5
Issuances	1.2	3.3	6.4	10.2
Interest accruals	1	2.9	3.4	2.9
Benefit payments	(0.2)	(1.7)	(1.2)	(1)
Ending balance at original discount rate	104.3	104.3	98.6	86.6
Effect of changes in discount rate assumptions	(25.7)	(25.7)	(19.2)	16.3
Ending balance	78.6	78.6	79.4	102.9
Ending balance (including reserves)				102.9
Liability for future policy benefits	48.2	48.2	49.6	73.2		69.5
Less: Reinsurance recoverable	(0.1)	(0.1)	0	(0.2)		(0.1)
Less: Change in discount rate assumptions						(0.1)
Net liability for future policy benefits, after reinsurance recoverable	48.1	48.1	49.6
Impact of flooring on net liability for future policy benefits	0	0	0
Net liability for future policy benefits at September 30, 2023	48.1	48.1	49.6	73		69.3
Limited Pay Whole Life | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						51.3
Limited Pay Whole Life | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						18.2
Limited Pay Whole Life | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Limited Pay Whole Life | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Limited Pay Whole Life | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Supplemental health
Present Value of Expected Net Premiums
Beginning balance	172	167.4	221.5	233
Beginning period (including reserves)				226.7
Beginning balance at original discount rate	207.5	205.1	217.5	218.2
Beginning balance at original discount rate (including reserves)			223.1
Change in cash flow assumptions			0	12.2	0	(1.8)
Actual variances from expected experience			0.3	(25.3)	0	6.3
Adjusted balance			205.4	210	207.5	222.7
Issuances	3.7	13.6	12	13
Interest accruals	1.5	4.5	5.9	5.9
Net premiums collected	(5.6)	(16.4)	(22.8)	(24.1)
Ending balance at original discount rate	207.1	207.1	205.1	217.5
Effect of changes in discount rate assumptions	(42.8)	(42.8)	(37.7)	4
Ending balance	164.3	164.3	167.4	221.5
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	426.6	431.7	580.6	626.9
Beginning balance (including reserves)			590.6
Beginning balance at original discount rate	517.2	517.2	537.1	572.6	525.8	589.1
Beginning balance at original discount rate (including reserves)			584.2
Changes in cash flow assumptions			0	13.8	0	(3)
Actual variances from expected experience			(0.1)	(30)	(0.2)	6.2
Adjusted balance			537	568	525.6	592.3
Issuances	3.7	13.6	12	13
Interest accruals	3.6	10.8	15	15.7
Benefit payments	(15.7)	(44.2)	(57.9)	(48.4)
Ending balance at original discount rate	517.2	517.2	537.1	572.6
Effect of changes in discount rate assumptions	(118.8)	(118.8)	(105.4)	8
Ending balance	398.4	398.4	431.7	580.6
Ending balance (including reserves)				590.6
Liability for future policy benefits	234	234	264.4	359.1		415.5
Less: Reinsurance recoverable	(3.5)	(3.5)	(3.4)	0		0
Less: Change in discount rate assumptions						0
Net liability for future policy benefits, after reinsurance recoverable	230.5	230.5	261
Impact of flooring on net liability for future policy benefits	0	0	0
Net liability for future policy benefits at September 30, 2023	230.5	230.5	261	359.1		415.5
Supplemental health | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						392.5
Supplemental health | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						23
Supplemental health | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Supplemental health | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Supplemental health | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
Cancer
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	88.5	88.5	101.8	140.8		163.5
Accident
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	20	20	21.8	28.7		31.2
Disability
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	21.6	21.6	23.1	29.3		32
Other
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Net liability for future policy benefits at September 30, 2023	100.4	100.4	114.3	160.3		188.8
SPIA (life contingent)
Present Value of Expected Net Premiums
Beginning balance	0	0	0	0
Beginning period (including reserves)				0
Beginning balance at original discount rate	0	0	0	0
Beginning balance at original discount rate (including reserves)			0
Change in cash flow assumptions			0	0	0	0
Actual variances from expected experience			0	0	0	0
Adjusted balance			0	0	0	0
Issuances	0.8	4.2	5.3	3.7
Interest accruals	0	0	0	0
Net premiums collected	(0.8)	(4.2)	(5.3)	(3.7)
Ending balance at original discount rate	0	0	0	0
Effect of changes in discount rate assumptions	0	0	0	0
Ending balance	0	0	0	0
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Beginning balance	103.6	103.3	124.7	136.5
Beginning balance (including reserves)			129.1
Beginning balance at original discount rate	111.9	111.9	113.4	111.6	113	115.9
Beginning balance at original discount rate (including reserves)			115.7
Changes in cash flow assumptions			0	0	0	0
Actual variances from expected experience			(0.5)	0.4	0	(0.4)
Adjusted balance			112.9	116.1	$ 113	115.5
Issuances	0.7	4.7	5.3	3.7
Interest accruals	1.1	3.3	4.3	4.5
Benefit payments	(2.9)	(9)	(12.3)	(12.1)
Ending balance at original discount rate	111.9	111.9	113.4	111.6
Effect of changes in discount rate assumptions	(13.7)	(13.7)	(10.1)	13.1
Ending balance	98.2	98.2	103.3	124.7
Ending balance (including reserves)				129.1
Liability for future policy benefits	98.2	98.2	103.3	124.7		136.5
Less: Reinsurance recoverable	(3.3)	(3.3)	(3.2)	0		0
Less: Change in discount rate assumptions						0
Net liability for future policy benefits, after reinsurance recoverable	94.9	94.9	100.1
Impact of flooring on net liability for future policy benefits	0	0	0
Net liability for future policy benefits at September 30, 2023	$ 94.9	$ 94.9	$ 100.1	$ 124.7		136.5
SPIA (life contingent) | Previously Reported
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Liability for future policy benefits						115.9
SPIA (life contingent) | Change in discount rate assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						20.6
SPIA (life contingent) | Change in cash flow assumptions, effect of net premiums exceeding gross premiums
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
SPIA (life contingent) | Change in cash flow assumptions, effect of decrease of the DPL
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						0
SPIA (life contingent) | Adjustment for removal of related balances in AOCI
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Changes in cash flow assumptions						$ 0

Long-Duration Insurance Contr_4

Long-Duration Insurance Contracts - Reconciliation of LFPB to Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	$ 1,613.4	$ 1,718
Whole life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	262.7	279.5
Term life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	112.4	112.4
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	743.2	799.3	$ 1,098.1	$ 1,191.3
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	48.2	49.6	73.2	69.5
Supplemental health
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	234	264.4	359.1	415.5
SPIA (life contingent)
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	98.2	103.3	$ 124.7	$ 136.5
Limited-pay whole life DPL
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	3.9	3.2
SPIA (life contingent) DPL
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	1.2	0.8
Reconciling items
Liability for Future Policy Benefit, by Product Segment [Line Items]
Liability for future policy benefits	$ 109.6	$ 105.5

Long-Duration Insurance Contr_5

Long-Duration Insurance Contracts - Amounts Recognized in the Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	$ 60.1	$ 60	$ 178.3	$ 178.3
Interest expense	18.9	18.8	56.8	56.8
Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	7.2	7	20.5	19.3
Interest expense	3	2.8	8.8	8.4
Term Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	11.7	11.3	33.9	31.6
Interest expense	1.2	1	3.6	3.2
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	8.1	8.4	24.2	25.2
Interest expense	10.9	11.1	32.8	33.2
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	2.2	2	5.5	6.3
Interest expense	0.6	0.6	1.9	1.8
Supplemental health
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	30	30.4	89.7	91.7
Interest expense	2.1	2.2	6.4	6.9
SPIA (life contingent)
Liability for Future Policy Benefit, by Product Segment [Line Items]
Gross premiums or assessments	0.9	0.9	4.5	4.2
Interest expense	$ 1.1	$ 1.1	$ 3.3	$ 3.3

Long-Duration Insurance Contr_6

Long-Duration Insurance Contracts - Undiscounted and Discounted Expected Gross Premiums and Expected Future Benefits and Expenses (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	$ 473.9	$ 469
Expected future benefits and expenses, undiscounted	1,138.5	1,121.4
Expected future gross premiums, discounted	323.6	322.5
Expected future benefits and expenses, discounted	591.2	580.4
Term Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	757	739.3
Expected future benefits and expenses, undiscounted	704.2	678
Expected future gross premiums, discounted	471.7	464.2
Expected future benefits and expenses, discounted	411.4	401
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	542.1	569.6
Expected future benefits and expenses, undiscounted	1,713.6	1,755.4
Expected future gross premiums, discounted	301.8	315.5
Expected future benefits and expenses, discounted	796.4	805.2
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	63.3	60.8
Expected future benefits and expenses, undiscounted	238.3	226.8
Expected future gross premiums, discounted	48.2	46.5
Expected future benefits and expenses, discounted	104.3	98.6
Supplemental health
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	1,639.2	1,615.5
Expected future benefits and expenses, undiscounted	713.5	761.4
Expected future gross premiums, discounted	1,206.3	1,208.1
Expected future benefits and expenses, discounted	517.2	563.6
SPIA (life contingent)
Liability for Future Policy Benefit, by Product Segment [Line Items]
Expected future gross premiums, undiscounted	0	0
Expected future benefits and expenses, undiscounted	156.7	157.7
Expected future gross premiums, discounted	0	0
Expected future benefits and expenses, discounted	$ 111.9	$ 113.4

Long-Duration Insurance Contr_7

Long-Duration Insurance Contracts - Actual and Expected Experience of Mortality Rate and Lapse Rate (Details)	Sep. 30, 2023	Sep. 30, 2022
Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Mortality, actual experience	0.70%	0.80%
Mortality, expected experience	0.70%	0.70%
Lapse rate, actual experience	3.60%	3.10%
Lapse rate, expected experience	4.70%	5.80%
Term Life | Minimum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Mortality, actual experience	0.10%	0.10%
Mortality, expected experience	0.10%	0.10%
Lapse rate, actual experience	5.30%	5.60%
Lapse rate, expected experience	5.70%	6.60%
Term Life | Maximum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Mortality, actual experience	0.60%	0.30%
Mortality, expected experience	1.70%	0.80%
Lapse rate, actual experience	7.30%	63%
Lapse rate, expected experience	32.20%	7.30%
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Mortality, actual experience	1.70%	1.60%
Mortality, expected experience	1.60%	1.40%
Lapse rate, actual experience	3.20%	3.40%
Lapse rate, expected experience	3.10%	3.20%
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Mortality, actual experience	0.10%	0.20%
Mortality, expected experience	0.30%	0.20%
Lapse rate, actual experience	4.30%	4%
Lapse rate, expected experience	5.30%	7.50%

Long-Duration Insurance Contr_8

Long-Duration Insurance Contracts - Weighted-Average Durations of LFPB (Details)	Sep. 30, 2023	Sep. 30, 2022
Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	17 years 9 months 18 days	17 years 8 months 12 days
Term Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	16 years 4 months 24 days	15 years 9 months 18 days
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	10 years 4 months 24 days	10 years 8 months 12 days
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	22 years 2 months 12 days	21 years 3 months 18 days
Supplemental health
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	10 years 4 months 24 days	9 years 10 months 24 days
SPIA (life contingent)
Liability for Future Policy Benefit, by Product Segment [Line Items]
Weighted-average duration	7 years 7 months 6 days	7 years 8 months 12 days

Long-Duration Insurance Contr_9

Long-Duration Insurance Contracts - Discount Rates for LFPB (Details)	Sep. 30, 2023	Sep. 30, 2022
Whole Life | Minimum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	1.70%	1.70%
Current discount rate	5.50%	4.90%
Whole Life | Maximum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	4.90%	5%
Current discount rate	5.90%	5.40%
Term Life | Minimum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	4.20%	4.10%
Current discount rate	5.90%	5.50%
Term Life | Maximum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	4.30%	4.30%
Current discount rate	5.90%	5.50%
Experience Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	6.10%	6.10%
Current discount rate	5.90%	5.50%
Limited Pay Whole Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	3.90%	3.90%
Current discount rate	5.90%	5.40%
Supplemental health | Minimum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	1.70%	1.70%
Current discount rate	5.90%	5.40%
Supplemental health | Maximum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	2.70%	2.70%
Current discount rate	6.10%	5.80%
SPIA (life contingent) | Minimum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	1.70%	1.70%
Current discount rate	5.80%	5.40%
SPIA (life contingent) | Maximum
Liability for Future Policy Benefit, by Product Segment [Line Items]
Interest accretion rate	4.10%	4%
Current discount rate	5.80%	5.40%

Long-Duration Insurance Cont_10

Long-Duration Insurance Contracts - Policyholder Account Balances (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Policyholder Account Balance [Roll Forward]
Beginning balance			$ 5,260.6
Interest credited	$ 52.7	$ 44.8	152.1	$ 125.9
Ending balance	5,204		5,204		$ 5,260.6
Indexed Universal Life
Policyholder Account Balance [Roll Forward]
Beginning balance	52	42.6	47.6	39.1	39.1
Premiums received	3.1	3.2	9.8	7.9
Surrenders and withdrawals	(0.2)	(0.1)	(0.9)	(0.7)
Benefit payments	0	0	0	0
Net transfers from (to) separate account	(0.3)	0	(0.5)	0
Interest credited	0.7	0	0.9	0.8
Other	(0.6)	(0.9)	(2.2)	(2.3)
Ending balance	$ 54.7	$ 44.8	$ 54.7	$ 44.8	47.6
Weighted-average crediting rate	5.40%	0%	2.30%	2.70%
Net amount at risk	$ 0	$ 0	$ 0	$ 0
Cash surrender value	37.7	29	37.7	29
Experience Life
Policyholder Account Balance [Roll Forward]
Beginning balance	63	65.4	64.3	66.2	66.2
Premiums received	(0.1)	(0.2)	(0.5)	(0.2)
Surrenders and withdrawals	(1.1)	(0.9)	(2.6)	(2.4)
Benefit payments	(0.4)	(0.4)	(1.3)	(1.2)
Net transfers from (to) separate account	0	0	0	0
Interest credited	0.8	0.9	2.3	2.4
Other	(0.1)	(0.1)	(0.1)	(0.1)
Ending balance	$ 62.1	$ 64.7	$ 62.1	$ 64.7	64.3
Weighted-average crediting rate	5.20%	5.70%	5%	5%
Net amount at risk	$ 0	$ 0	$ 0	$ 0
Cash surrender value	61.4	64	61.4	64
Fixed Account Annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	4,563.5	4,573.7	4,591.1	4,532.7	4,532.7
Premiums received	70	61.3	183.9	156
Surrenders and withdrawals	(87.8)	(64.4)	(289.8)	(184.2)
Benefit payments	(21.2)	(17.7)	(58.1)	(50.6)
Net transfers from (to) separate account	3	7.8	17.5	34.6
Interest credited	40.8	39.2	120.7	116.4
Other	0.2	4.2	3.2	(0.8)
Ending balance	$ 4,568.5	$ 4,604.1	$ 4,568.5	$ 4,604.1	4,591.1
Weighted-average crediting rate	3.60%	3.50%	3.60%	3.50%
Net amount at risk	$ 53.9	$ 110.2	$ 53.9	$ 110.2
Cash surrender value	4,512.3	4,546.5	4,512.3	4,546.5
Fixed Indexed Account Annuities
Policyholder Account Balance [Roll Forward]
Beginning balance	481.2	518.2	510.3	522.6	522.6
Premiums received	5.3	8	15.8	25.4
Surrenders and withdrawals	(17.6)	(9.8)	(50.1)	(30.1)
Benefit payments	(0.6)	(1.1)	(2.1)	(2.9)
Net transfers from (to) separate account	(3.1)	(0.7)	(6.4)	(1.1)
Interest credited	3	0.1	3.9	3.2
Other	(0.2)	2.2	(3.4)	(0.2)
Ending balance	$ 468	$ 516.9	$ 468	$ 516.9	510.3
Weighted-average crediting rate	2.60%	0.10%	1.10%	0.80%
Net amount at risk	$ 0	$ 0	$ 0	$ 0
Cash surrender value	456.8	501.7	456.8	501.7
SPIA (non-life contingent)
Policyholder Account Balance [Roll Forward]
Beginning balance	33.5	36.3	34.4	37.7	37.7
Premiums received	0.5	0.3	2.6	1.7
Surrenders and withdrawals	0	0	(0.2)	(0.4)
Benefit payments	(1.2)	(1.4)	(4.3)	(4.4)
Net transfers from (to) separate account	0	0	0	0
Interest credited	0.3	0.2	0.8	0.8
Other	0	0	(0.2)	0
Ending balance	$ 33.1	$ 35.4	$ 33.1	$ 35.4	$ 34.4
Weighted-average crediting rate	3.70%	2.30%	3.10%	3%
Net amount at risk	$ 0	$ 0	$ 0	$ 0
Cash surrender value	$ 32.9	$ 35	$ 32.9	$ 35

Long-Duration Insurance Cont_11

Long-Duration Insurance Contracts - Reconciliation of Policyholder Account Balances to the Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 5,204		$ 5,260.6
Indexed Universal Life
Policyholder Account Balance [Line Items]
Policyholders' account balances	54.7	$ 52	47.6	$ 44.8	$ 42.6	$ 39.1
Experience Life
Policyholder Account Balance [Line Items]
Policyholders' account balances	62.1	63	64.3	64.7	65.4	66.2
Fixed Account Annuities
Policyholder Account Balance [Line Items]
Policyholders' account balances	4,568.5	4,563.5	4,591.1	4,604.1	4,573.7	4,532.7
Fixed Indexed Account Annuities
Policyholder Account Balance [Line Items]
Policyholders' account balances	468	481.2	510.3	516.9	518.2	522.6
SPIA (non-life contingent)
Policyholder Account Balance [Line Items]
Policyholders' account balances	33.1	$ 33.5	34.4	$ 35.4	$ 36.3	$ 37.7
Reconciling items
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 17.6		$ 12.9

Long-Duration Insurance Cont_12

Long-Duration Insurance Contracts - Account Balances by Guaranteed Minimum Interest Rates (Details) $ in Millions	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 5,204	$ 5,260.6
Less than 2%
Policyholder Account Balance [Line Items]
Policyholders' account balances	916.2	943.6
Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholders' account balances	328.9	280.6
Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholders' account balances	621	668.2
Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholders' account balances	2,692.8	2,706.1
5% or higher
Policyholder Account Balance [Line Items]
Policyholders' account balances	89.3	91.7
Policyholder account balance with a guaranteed minimum crediting rate
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 4,648.2	$ 4,690.2
Minimum | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	2%	2%
Minimum | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	3%	3%
Minimum | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	4%	4%
Minimum | 5% or higher
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	5%	5%
Maximum | Less than 2%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	2%	2%
Maximum | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	3%	3%
Maximum | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	4%	4%
Maximum | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholder account balance, guaranteed minimum credit rating	5%	5%
At Guaranteed Minimum | Less than 2%
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 64.4	$ 262.5
At Guaranteed Minimum | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholders' account balances	197.9	256.1
At Guaranteed Minimum | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholders' account balances	598	667.4
At Guaranteed Minimum | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholders' account balances	2,692.8	2,706.1
At Guaranteed Minimum | 5% or higher
Policyholder Account Balance [Line Items]
Policyholders' account balances	89.3	91.7
At Guaranteed Minimum | Policyholder account balance with a guaranteed minimum crediting rate
Policyholder Account Balance [Line Items]
Policyholders' account balances	3,642.4	3,983.8
1-50 Basis Points Above | Less than 2%
Policyholder Account Balance [Line Items]
Policyholders' account balances	252.2	370.6
1-50 Basis Points Above | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholders' account balances	56	19.8
1-50 Basis Points Above | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholders' account balances	22.3	0.4
1-50 Basis Points Above | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
1-50 Basis Points Above | 5% or higher
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
1-50 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 330.5	$ 390.8
1-50 Basis Points Above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0001	0.0001
1-50 Basis Points Above | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0050	0.0050
51-150 Basis Points Above | Less than 2%
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 417.3	$ 214.4
51-150 Basis Points Above | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholders' account balances	38	4.7
51-150 Basis Points Above | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholders' account balances	0.7	0.4
51-150 Basis Points Above | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
51-150 Basis Points Above | 5% or higher
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
51-150 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 456	$ 219.5
51-150 Basis Points Above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0051	0.0051
51-150 Basis Points Above | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0150	0.0150
Greater Than 150 Basis Points Above | Less than 2%
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 182.3	$ 96.1
Greater Than 150 Basis Points Above | Equal to 2% but less than 3%
Policyholder Account Balance [Line Items]
Policyholders' account balances	37	0
Greater Than 150 Basis Points Above | Equal to 3% but less than 4%
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
Greater Than 150 Basis Points Above | Equal to 4% but less than 5%
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
Greater Than 150 Basis Points Above | 5% or higher
Policyholder Account Balance [Line Items]
Policyholders' account balances	0	0
Greater Than 150 Basis Points Above | Policyholder account balance with a guaranteed minimum crediting rate
Policyholder Account Balance [Line Items]
Policyholders' account balances	$ 219.3	$ 96.1
Greater Than 150 Basis Points Above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0150	0.0150

Long-Duration Insurance Cont_13

Long-Duration Insurance Contracts - Separate Account Liability Rollforward (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Separate Account, Liability [Roll Forward]
Balance, beginning of year	$ 2,792.3
Balance, end of period	2,974	$ 2,792.3
Variable Account Annuities
Separate Account, Liability [Roll Forward]
Balance, beginning of year	2,792.3	3,441
Deposits	173.9	240.3
Withdrawals	(163.3)	(186.8)
Net transfers	(11.1)	(38.1)
Fees and charges	(28)	(36.8)
Market appreciation (depreciation)	215.6	(619.7)
Other	(5.4)	(7.6)
Balance, end of period	$ 2,974	$ 2,792.3

Long-Duration Insurance Cont_14

Long-Duration Insurance Contracts - Market Risk Benefits Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2020
Market Risk Benefit [Roll Forward]
Balance, beginning of period	$ (3.6)	$ 4.6	$ 0.2	$ 4.8
Balance, beginning of period, before effects of changes in the instrument-specific credit risk	(3.2)	4.2	0	2
Changes in market risk benefits	(1.3)	(1.6)	(4.5)	0.6
Balance, end of period	(4.5)	2.6	(4.5)	2.6
Effect of changes in the instrument-specific credit risk	0	0.3	0	0.3
Balance, end of period	(4.5)	2.9	(4.5)	2.9
Net amount at risk	$ 37.6	$ 79.9	$ 37.6	$ 79.9	$ 8.6
Weighted-average attained age of contract holders	63 years	63 years	63 years	63 years

Long-Duration Insurance Cont_15

Long-Duration Insurance Contracts - Market Risk Benefits by Asset and Liability Balance (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Market Risk Benefit [Line Items]
Net	$ (4.5)	$ (3.6)	$ 0.2	$ 2.9	$ 4.6	$ 4.8	$ 8.6
Deferred variable annuities
Market Risk Benefit [Line Items]
(Asset)	(6.4)		(4.4)
Liability	1.9		4.7
Net	$ (4.5)		$ 0.3

Long-Duration Insurance Cont_16

Long-Duration Insurance Contracts - Deferred Policy Acquisition Costs, Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period			$ 330.6
Amortization expense	$ (26.3)	$ (22.2)	(75.4)	$ (65.7)
Balance, end of period	334.9		334.9		$ 330.6
Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period			433.1
Amortization expense		(23.3)		(76.7)
Balance, end of period					433.1
Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period			(102.5)
Amortization expense		$ 1.1		11
Balance, end of period					(102.5)
Whole Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	21.6		20.9	19.1	19.1	$ 17.8
Capitalizations	0.7		2		3	2.4
Amortization expense	(0.3)		(0.9)		(1.2)	(1.1)
Experience adjustment	(0.1)		(0.1)		0	0
Balance, end of period	21.9		21.9		20.9	19.1
Whole Life | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						17.8
Whole Life | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						0
Term Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	31.4		30	27.5	27.5	25.6
Capitalizations	1.5		4.3		5	4.2
Amortization expense	(0.8)		(2.2)		(2.5)	(2.3)
Experience adjustment	(0.1)		(0.1)		0	0
Balance, end of period	32		32		30	27.5
Term Life | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						25.6
Term Life | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						0
Experience Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	5.7		5.8	6	6	6.2
Capitalizations	0.1		0.2		0.2	0.2
Amortization expense	(0.1)		(0.3)		(0.4)	(0.4)
Experience adjustment	0		0		0	0
Balance, end of period	5.7		5.7		5.8	6
Experience Life | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						2.6
Experience Life | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						3.6
Limited Pay Whole Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	7		6.7	5.6	5.6	4.4
Capitalizations	0.4		0.9		1.4	1.5
Amortization expense	(0.1)		(0.3)		(0.3)	(0.3)
Experience adjustment	(0.1)		(0.1)		0	0
Balance, end of period	7.2		7.2		6.7	5.6
Limited Pay Whole Life | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						4.4
Limited Pay Whole Life | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						0
Indexed Universal Life
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	16.1		15.4	13.7	13.7	12.9
Capitalizations	0.6		1.8		2.5	1.7
Amortization expense	(0.2)		(0.7)		(0.8)	(0.8)
Experience adjustment	(0.1)		(0.1)		0	(0.1)
Balance, end of period	16.4		16.4		15.4	13.7
Indexed Universal Life | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						11.3
Indexed Universal Life | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						1.6
Supplemental health
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	7		6.2	4.9	4.9	4.3
Capitalizations	0.7		2		1.8	1.1
Amortization expense	(0.2)		(0.5)		(0.5)	(0.5)
Experience adjustment	0		(0.2)		0	0
Balance, end of period	7.5		7.5		6.2	4.9
Supplemental health | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						4.3
Supplemental health | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						0
Total Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	217.2		221.1	$ 223.3	223.3	223.1
Capitalizations	3.7		11.4		15.5	17.3
Amortization expense	(3.6)		(11)		(15.8)	(16)
Experience adjustment	(2.3)		(6.5)		(1.9)	(1.1)
Balance, end of period	$ 215		$ 215		$ 221.1	223.3
Total Annuities | Previously Reported
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						137.7
Total Annuities | Effect of the Adoption of ASU 2018-12
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period						$ 85.4

Long-Duration Insurance Cont_17

Long-Duration Insurance Contracts - Deferred Policy Acquisition Costs, Reconciliation to Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 334.9		$ 330.6
Whole Life
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	21.9	$ 21.6	20.9	$ 19.1	$ 17.8
Term Life
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	32	31.4	30	27.5	25.6
Experience Life
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	5.7	5.7	5.8	6	6.2
Limited Pay Whole Life
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	7.2	7	6.7	5.6	4.4
Indexed Universal Life
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	16.4	16.1	15.4	13.7	12.9
Supplemental health
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	7.5	7	6.2	4.9	4.3
Total Annuities
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	215	$ 217.2	221.1	$ 223.3	$ 223.1
Reconciling items
Deferred Policy Acquisition Cost [Line Items]
Deferred policy acquisition costs	$ 29.2		$ 24.5

Long-Duration Insurance Cont_18

Long-Duration Insurance Contracts - Deferred Sale Inducement Costs, Rollforward (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	$ 14.9	$ 15.9
Capitalizations	0	0
Amortization expense	(0.2)	(0.8)
Experience adjustment	(0.2)	(0.6)
Balance, end of period	$ 14.5	$ 14.5

Reinsurance - Summary of Reinsu

Reinsurance - Summary of Reinsurance Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Direct Amount
Net premiums written and contract deposits, Direct Amount	$ 424	$ 391.2	$ 1,186.5	$ 1,127.1
Net premiums and contract charges earned, Direct Amount	276.7	261.6	812.3	782.5
Benefits, claims and settlement expenses, Direct Amount	205.2	170.9	615.6	564.9
Ceded to Other Companies
Net premiums written and contract deposits, Ceded to Other Companies	16.5	15.4	51	46.7
Net premiums and contract charges earned, Ceded to Other Companies	18.7	17.6	57.2	53.5
Benefits, claims and settlement expenses, Ceded to Other Companies	9.1	8.3	36.1	34.1
Assumed from Other Companies
Net premiums written and contract deposits, Assumed from Other Companies	8.4	13.4	28.2	39.5
Net premiums and contract charges earned, Assumed from Other Companies	8	13.4	27.5	39.6
Benefits, claims and settlement expenses, Assumed from Other Companies	3.1	4.6	8.1	14.9
Net Amount
Net premiums written and contract deposits, Net Amount	415.9	389.2	1,163.7	1,119.9
Net premiums and contract charges earned, Net Amount	266	257.4	782.6	768.6
Benefits, claims and settlement expenses, Net Amount	$ 199.2	$ 167.1	$ 587.6	$ 545.7

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($) $ in Millions		9 Months Ended
	Sep. 15, 2023	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Repayments of revolving credit facility		$ 249	$ 0
Senior Notes | 2023 Senior Notes
Debt Instrument [Line Items]
Principal amount	$ 300
Stated rate	7.25%
Effective interest percentage	7.29%
Debt redemption price, percentage	100%
Debt instrument, redemption price, interest discounted at treasury yield margin	0.45%
Revolving Credit Facility
Debt Instrument [Line Items]
Repayments of revolving credit facility	$ 249

Segment Information - Narrative

Segment Information - Narrative (Details)	9 Months Ended
	Sep. 30, 2023 segment
Segment Reporting [Abstract]
Number of reportable segments (segments)	4
Number of operating segments (segments)	3

Segment Information - Summary o

Segment Information - Summary of Segment Activity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information
Net premiums and contract charges earned	$ 266	$ 257.4	$ 782.6	$ 768.6
Net investment income	118.9	97.6	327.8	300.7
Net income (loss)	11.7	20.4	5.5	36.5
Assets	13,412.5		13,412.5		$ 13,306.1
Intersegment eliminations
Segment Reporting Information
Net investment income	(0.5)	(0.5)	(1.6)	(1.6)
Assets	(58.4)		(58.4)		(64.9)
Property & Casualty | Operating segments
Segment Reporting Information
Net premiums and contract charges earned	164.3	152.4	474.1	452.5
Net investment income	12	8	26.6	22.9
Net income (loss)	(11.3)	(2.5)	(44.3)	(19.4)
Assets	1,142.2		1,142.2		1,083.8
Life & Retirement | Operating segments
Segment Reporting Information
Net premiums and contract charges earned	38.2	36.8	113.3	108.9
Net investment income	96.9	81.4	274.1	254
Net income (loss)	20.9	17.7	52.3	57.1
Assets	10,856.2		10,856.2		10,754.5
Supplemental & Group Benefits | Operating segments
Segment Reporting Information
Net premiums and contract charges earned	63.5	68.2	195.2	207.2
Net investment income	10.3	8.7	28.5	25.4
Net income (loss)	15.8	20.7	41.6	48.9
Assets	1,299.8		1,299.8		1,359.3
Corporate & Other
Segment Reporting Information
Net investment income	0.2	0	0.2	0
Net income (loss)	(13.7)	$ (15.5)	(44.1)	$ (50.1)
Assets	$ 172.6		$ 172.6		$ 173.4

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance			$ 1,098.3
Other comprehensive income (loss) before reclassifications	$ (53)	$ (112.7)	(26.7)	$ (395.8)
Amounts reclassified from AOCI	2.7	8.4	16.2	12.6
Other comprehensive loss	(50.3)	(104.3)	(10.5)	(383.2)
Ending balance	1,051.3	1,092.3	1,051.3	1,092.3
Pretax reclassification amounts from AOCI, tax	(0.7)	(2.3)	(4.3)	(3.4)
AOCI
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	(359.6)	(328.9)	(399.4)	(50)
Ending balance	(409.9)	(433.2)	(409.9)	(433.2)
Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	(393.7)	(281.8)	(449.6)	347.1
Other comprehensive income (loss) before reclassifications	(143.7)	(223.4)	(101.3)	(856.5)
Amounts reclassified from AOCI	2.7	8.4	16.2	12.6
Other comprehensive loss	(141)	(215)	(85.1)	(843.9)
Ending balance	(534.7)	(496.8)	(534.7)	(496.8)
Pretax reclassification amounts from accumulated other comprehensive income (loss)	(3.5)	(10.7)	(20.5)	(15.9)
Net Reserve Remeasurements Attributable to Discount Rates
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	42.9	(36.9)	59	(386.9)
Other comprehensive income (loss) before reclassifications	90.7	110.7	74.6	460.7
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive loss	90.7	110.7	74.6	460.7
Ending balance	133.6	73.8	133.6	73.8
Net Funded Status of Benefit Plans
Net unrealized investment gains (losses) on fixed maturity securities, net of tax
Beginning balance	(8.8)	(10.2)	(8.8)	(10.2)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive loss	0	0	0	0
Ending balance	$ (8.8)	$ (10.2)	$ (8.8)	$ (10.2)

Supplemental Consolidated Cas_3

Supplemental Consolidated Cash and Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Cash	$ 33.7		$ 42.2
Restricted cash	0.8		0.6
Total cash and restricted cash reported in the Consolidated Balance Sheets	34.5	$ 36.2	$ 42.8	$ 133.7
Interest	18.3	9.1
Income taxes	$ 14.8	$ 6.4

Contingencies and Commitments (

Contingencies and Commitments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Unfunded commitments to purchase investments	$ 505.9	$ 704.2

Prior Period Consolidated Fin_3

Prior Period Consolidated Financial Statements - Consolidated Balance Sheet (Unaudited) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Assets
Total investments	$ 6,519.4	$ 6,587.6
Cash	34.5	42.8	$ 36.2	$ 133.7
Deferred policy acquisition costs	334.9	330.6
Reinsurance balances receivable	441.1	468
Deposit asset on reinsurance	2,515.7	2,516.6
Intangible assets	174	185.2
Goodwill	54.3	54.3
Other assets	364.6	328.7
Separate Account variable annuity assets	2,974	2,792.3
Total assets	13,412.5	13,306.1
Policy liabilities
Investment contract and policy reserves		0
Future policy benefit reserves	1,613.4	1,718
Policyholders' account balances	5,204	5,260.6
Unpaid claims and claim expenses	586.6	564
Unearned premiums	296.4	266.1
Total policy liabilities	7,700.4	7,808.7
Other policyholder funds	915.9	809.3
Other liabilities	224.8	299.5
Short-term debt	0	249
Long-term debt	546.1	249
Separate Account variable annuity liabilities	2,974	2,792.3
Total liabilities	12,361.2	12,207.8
Preferred stock	0	0
Common stock	0.1	0.1
Additional paid-in capital	508.5	502.6
Retained earnings	1,476.5	1,512.4
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment losses on fixed maturity securities	(534.7)	(449.6)
Net reserve remeasurements attributable to discount rates	133.6	59
Net funded status of benefit plans	(8.8)	(8.8)
Treasury stock, at cost	(523.9)	(517.4)
Total shareholders’ equity	1,051.3	1,098.3	1,092.3
Total liabilities and shareholders’ equity	$ 13,412.5	13,306.1
Previously Reported
Assets
Total investments		6,587.6
Cash		42.8	36.2	133.7
Deferred policy acquisition costs		433.1
Reinsurance balances receivable		506.2
Deposit asset on reinsurance		2,516.6
Intangible assets		185.2
Goodwill		54.3
Other assets		328.7
Separate Account variable annuity assets		2,792.3
Total assets		13,446.8
Policy liabilities
Investment contract and policy reserves		6,968
Future policy benefit reserves
Unpaid claims and claim expenses		585.1
Unearned premiums		264.2
Total policy liabilities		7,817.3
Other policyholder funds		954
Other liabilities		297
Short-term debt		249
Long-term debt		249
Separate Account variable annuity liabilities		2,792.3
Total liabilities		12,358.6
Preferred stock		0
Common stock		0.1
Additional paid-in capital		502.6
Retained earnings		1,468.6
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment losses on fixed maturity securities		(356.9)
Net reserve remeasurements attributable to discount rates		0
Net funded status of benefit plans		(8.8)
Treasury stock, at cost		(517.4)
Total shareholders’ equity		1,088.2	1,076.6
Total liabilities and shareholders’ equity		13,446.8
Effect of the Adoption of ASU 2018-12
Assets
Total investments		0
Cash		0	0	$ 0
Deferred policy acquisition costs		(102.5)
Reinsurance balances receivable		(38.2)
Deposit asset on reinsurance		0
Intangible assets		0
Goodwill		0
Other assets		0
Separate Account variable annuity assets		0
Total assets		(140.7)
Policy liabilities
Investment contract and policy reserves		(151.9)
Future policy benefit reserves
Unpaid claims and claim expenses		(2.9)
Unearned premiums		1.9
Total policy liabilities		(152.9)
Other policyholder funds		(0.4)
Other liabilities		2.5
Short-term debt		0
Long-term debt		0
Separate Account variable annuity liabilities		0
Total liabilities		(150.8)
Preferred stock		0
Common stock		0
Additional paid-in capital		0
Retained earnings		43.8
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment losses on fixed maturity securities		(92.7)
Net reserve remeasurements attributable to discount rates		59
Net funded status of benefit plans		0
Treasury stock, at cost		0
Total shareholders’ equity		10.1	$ 15.7
Total liabilities and shareholders’ equity		(140.7)
Reclassifications
Assets
Total investments		0
Cash		0
Deferred policy acquisition costs		0
Reinsurance balances receivable		0
Deposit asset on reinsurance		0
Intangible assets		0
Goodwill		0
Other assets		0
Separate Account variable annuity assets		0
Total assets		0
Policy liabilities
Investment contract and policy reserves		(6,816.1)
Future policy benefit reserves		1,718
Policyholders' account balances		5,260.6
Unpaid claims and claim expenses		(18.2)
Unearned premiums		0
Total policy liabilities		144.3
Other policyholder funds		(144.3)
Other liabilities		0
Short-term debt		0
Long-term debt		0
Separate Account variable annuity liabilities		0
Total liabilities		0
Preferred stock		0
Common stock		0
Additional paid-in capital		0
Retained earnings		0
Accumulated other comprehensive income (loss), net of tax:
Net unrealized investment losses on fixed maturity securities		0
Net reserve remeasurements attributable to discount rates		0
Net funded status of benefit plans		0
Treasury stock, at cost		0
Total shareholders’ equity		0
Total liabilities and shareholders’ equity		$ 0

Prior Period Consolidated Fin_4

Prior Period Consolidated Financial Statements - Consolidated Statement of Operations and Comprehensive Income (Loss)(Unaudited) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues
Net premiums and contract charges earned	$ 266	$ 257.4	$ 782.6	$ 768.6
Net investment income	118.9	97.6	327.8	300.7
Net investment losses	(8.4)	(12.8)	(29.7)	(43.8)
Other income	2.2	0.4	8.3	9.7
Total revenues	378.7	342.6	1,089	1,035.2
Benefits, losses and expenses
Benefits, claims and settlement expenses	199.2	167.1	587.6	545.7
Interest credited	52.7	44.8	152.1	125.9
Operating expenses	75.7	75.6	235.6	229.4
DAC amortization expense	26.3	22.2	75.4	65.7
Intangible asset amortization expense	3.7	4.2	11.1	12.6
Interest expense	7.5	5.3	21.1	13.5
Total benefits, losses and expenses	365.1	319.2	1,082.9	992.8
Income before income taxes	13.6	23.4	6.1	42.4
Income tax expense	1.9	3	0.6	5.9
Net income (loss)	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Net income per share
Basic (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Diluted (in usd per share)	$ 0.28	$ 0.49	$ 0.13	$ 0.87
Weighted average number of shares and equivalent shares
Basic (in shares)	41.3	41.4	41.3	41.7
Diluted (in shares)	41.4	41.6	41.4	41.9
Other comprehensive loss, net of tax:
Change in net unrealized investment losses on fixed maturity securities	$ (141)	$ (215)	$ (85.1)	$ (843.9)
Change in net reserve remeasurements attributable to discount rates	90.7	110.7	74.6	460.7
Change in net funded status of benefit plans	0	0	0	0
Other comprehensive loss	(50.3)	(104.3)	(10.5)	(383.2)
Comprehensive income (loss)	$ (38.6)	(83.9)	$ (5)	(346.7)
Previously Reported
Revenues
Net premiums and contract charges earned		257.8		769.5
Net investment income		97.6		300.7
Net investment losses		(12.8)		(43.8)
Other income		0.4		9.7
Total revenues		343		1,036.1
Benefits, losses and expenses
Benefits, claims and settlement expenses		173.6		558.2
Interest credited		45.9		129.1
Operating expenses		75.6		229.7
DAC amortization expense		23.3		76.7
Intangible asset amortization expense		4.2		12.6
Interest expense		5.3		13.5
Total benefits, losses and expenses		327.9		1,019.8
Income before income taxes		15.1		16.3
Income tax expense		1.2		0.4
Net income (loss)		$ 13.9		$ 15.9
Net income per share
Basic (in usd per share)		$ 0.33		$ 0.38
Diluted (in usd per share)		$ 0.33		$ 0.38
Weighted average number of shares and equivalent shares
Basic (in shares)		41.4		41.7
Diluted (in shares)		41.6		41.9
Other comprehensive loss, net of tax:
Change in net unrealized investment losses on fixed maturity securities		$ (176.3)		$ (687.4)
Change in net reserve remeasurements attributable to discount rates		0		0
Change in net funded status of benefit plans		0		0
Other comprehensive loss		(176.3)		(687.4)
Comprehensive income (loss)		(162.4)		(671.5)
Effect of the Adoption of ASU 2018-12
Revenues
Net premiums and contract charges earned		(0.4)		(0.9)
Net investment income		0		0
Net investment losses		0		0
Other income		0		0
Total revenues		(0.4)		(0.9)
Benefits, losses and expenses
Benefits, claims and settlement expenses		(6.4)		(12.5)
Interest credited		(1.1)		(3.2)
Operating expenses		0		(0.3)
DAC amortization expense		(1.1)		(11)
Intangible asset amortization expense		0		0
Interest expense		0		0
Total benefits, losses and expenses		(8.6)		(27)
Income before income taxes		8.3		26.1
Income tax expense		1.8		5.5
Net income (loss)		$ 6.5		$ 20.6
Net income per share
Basic (in usd per share)		$ 0.16		$ 0.49
Diluted (in usd per share)		$ 0.16		$ 0.49
Weighted average number of shares and equivalent shares
Basic (in shares)		0		0
Diluted (in shares)		0		0
Other comprehensive loss, net of tax:
Change in net unrealized investment losses on fixed maturity securities		$ (38.7)		$ (156.5)
Change in net reserve remeasurements attributable to discount rates		110.7		460.7
Change in net funded status of benefit plans		0		0
Other comprehensive loss		72		304.2
Comprehensive income (loss)		$ 78.5		$ 324.8

Prior Period Consolidated Fin_5

Prior Period Consolidated Financial Statements - Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock, par value (in usd per share)		$ 0.001	$ 0.001	$ 0.001	$ 0.001	$ 0.001
Cash dividends (in usd per share)			$ 0.32	$ 0.33	$ 0.32
Increase (Decrease) in Stockholders' Equity
Beginning balance				$ 1,098.3
Net income (loss)		$ 11.7	$ 20.4	5.5	$ 36.5
Change in net reserve remeasurements attributable to discount rates		90.7	110.7	74.6	460.7
Change in net funded status of benefit plans		0	0	0	0
Ending balance		1,051.3	1,092.3	1,051.3	1,092.3
Previously Reported
Increase (Decrease) in Stockholders' Equity
Beginning balance				1,088.2
Net income (loss)			13.9		15.9
Change in net reserve remeasurements attributable to discount rates			0		0
Change in net funded status of benefit plans			0		0
Ending balance			1,076.6		1,076.6
Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Beginning balance				10.1
Net income (loss)			6.5		20.6
Change in net reserve remeasurements attributable to discount rates			110.7		460.7
Change in net funded status of benefit plans			0		0
Ending balance			15.7		15.7
Common stock, $0.001 par value
Increase (Decrease) in Stockholders' Equity
Beginning balance		0.1	0.1	0.1	0.1
Ending balance		0.1	0.1	0.1	0.1
Common stock, $0.001 par value | Previously Reported
Increase (Decrease) in Stockholders' Equity
Ending balance			0.1		0.1
Common stock, $0.001 par value | Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Ending balance			0		0
Additional paid-in capital
Increase (Decrease) in Stockholders' Equity
Beginning balance		505.7	498.1	502.6	495.3
Ending balance		508.5	500.4	508.5	500.4
Additional paid-in capital | Previously Reported
Increase (Decrease) in Stockholders' Equity
Ending balance			500.4		500.4
Additional paid-in capital | Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Ending balance			0		0
Retained earnings
Increase (Decrease) in Stockholders' Equity
Beginning balance		1,478.6	1,535.3	1,512.4	1,547
Net income (loss)		11.7	20.4	5.5	36.5
Dividends,per share; 2022, $0.32 per share		(13.8)	(13.3)	(41.4)	(40.3)
Ending balance		1,476.5	1,542.4	1,476.5	1,542.4
Retained earnings | Accounting Standards Update 2018-12
Increase (Decrease) in Stockholders' Equity
Beginning balance					(0.8)
Retained earnings | Previously Reported
Increase (Decrease) in Stockholders' Equity
Beginning balance			1,499.9		1,524.9
Net income (loss)			13.9		15.9
Dividends,per share; 2022, $0.32 per share			(13.4)		(40.4)
Ending balance			1,500.4		1,500.4
Retained earnings | Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Beginning balance			35.4		22.1
Net income (loss)			6.5		20.6
Dividends,per share; 2022, $0.32 per share			0.1		0.1
Ending balance			42		42
Retained earnings | Effect of the Adoption of ASU 2018-12 | Accounting Standards Update 2018-12
Increase (Decrease) in Stockholders' Equity
Beginning balance	[1]				(0.8)
Accumulated other comprehensive income (loss), net of tax:
Increase (Decrease) in Stockholders' Equity
Beginning balance		(359.6)	(328.9)	(399.4)	(50)
Change in net unrealized investment losses on fixed maturity securities		(141)	(215)	(85.1)	(843.9)
Change in net reserve remeasurements attributable to discount rates		90.7	110.7	74.6	460.7
Ending balance		(409.9)	(433.2)	(409.9)	(433.2)
Accumulated other comprehensive income (loss), net of tax: | Previously Reported
Increase (Decrease) in Stockholders' Equity
Beginning balance			(230.6)		280.5
Change in net unrealized investment losses on fixed maturity securities			(176.3)		(687.4)
Change in net reserve remeasurements attributable to discount rates			0		0
Ending balance			(406.9)		(406.9)
Accumulated other comprehensive income (loss), net of tax: | Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Beginning balance			(98.3)		(330.5)
Change in net unrealized investment losses on fixed maturity securities			(38.7)		(156.5)
Change in net reserve remeasurements attributable to discount rates			110.7		460.7
Ending balance			(26.3)		(26.3)
Treasury stock, at cost
Increase (Decrease) in Stockholders' Equity
Beginning balance		(522.9)	(507.4)	(517.4)	(493.4)
Ending balance		$ (523.9)	(517.4)	$ (523.9)	(517.4)
Treasury stock, at cost | Previously Reported
Increase (Decrease) in Stockholders' Equity
Ending balance			(517.4)		(517.4)
Treasury stock, at cost | Effect of the Adoption of ASU 2018-12
Increase (Decrease) in Stockholders' Equity
Ending balance			$ 0		$ 0
[1]See Note 1 to the Consolidated Financial Statements for information regarding the adoption of ASU 2018-12.

Prior Period Consolidated Fin_6

Prior Period Consolidated Financial Statements - Consolidated Statement of Cash Flows (Unaudited) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Cash flows - operating activities
Net income	$ 11.7	$ 20.4	$ 5.5	$ 36.5
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment losses			29.8	43.8
Depreciation and intangible asset amortization			19.5	20.7
Share-based compensation expense			7.1	6.7
Loss (gain) from equity method investments, net of dividends or distributions			9	2.1
Changes in:
Insurance liabilities			122.3	223.5
Amounts due under reinsurance agreements			26.9	(304.3)
Income tax liabilities			8.1	125.1
Other operating assets and liabilities			(28.1)	(42.6)
Other, net			(0.9)	4.3
Net cash provided by operating activities			199.2	115.8
Cash flows - investing activities
Net cash used in investing activities			(85.6)	(295.9)
Cash flows - financing activities
Net cash provided by (used in) financing activities			(121.9)	82.6
Net decrease in cash			(8.3)	(97.5)
Cash at beginning of period			42.8	133.7
Cash at end of period	$ 34.5	36.2	34.5	36.2
Previously Reported
Cash flows - operating activities
Net income		13.9		15.9
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment losses				43.8
Depreciation and intangible asset amortization				20.7
Share-based compensation expense				6.7
Loss (gain) from equity method investments, net of dividends or distributions				2.1
Changes in:
Insurance liabilities				403.3
Amounts due under reinsurance agreements				(344.3)
Income tax liabilities				(6)
Other operating assets and liabilities				(31)
Other, net				4.6
Net cash provided by operating activities				115.8
Cash flows - investing activities
Net cash used in investing activities				(295.9)
Cash flows - financing activities
Net cash provided by (used in) financing activities				82.6
Net decrease in cash				(97.5)
Cash at beginning of period			42.8	133.7
Cash at end of period		36.2		36.2
Effect of the Adoption of ASU 2018-12
Cash flows - operating activities
Net income		6.5		20.6
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net investment losses				0
Depreciation and intangible asset amortization				0
Share-based compensation expense				0
Loss (gain) from equity method investments, net of dividends or distributions				0
Changes in:
Insurance liabilities				(179.8)
Amounts due under reinsurance agreements				40
Income tax liabilities				131.1
Other operating assets and liabilities				(11.6)
Other, net				(0.3)
Net cash provided by operating activities				0
Cash flows - investing activities
Net cash used in investing activities				0
Cash flows - financing activities
Net cash provided by (used in) financing activities				0
Net decrease in cash				0
Cash at beginning of period			$ 0	0
Cash at end of period		$ 0		$ 0