United Fire (UFCS) 10-Q 7 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Nov. 05, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Trading Symbol	UFCS
Entity Registrant Name	UNITED FIRE GROUP INC
Entity Central Index Key	101,199
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding (in shares)		25,071,751

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fixed maturities
Held-to-maturity, at amortized cost (fair value $0 in 2018 and $150 in 2017)	$ 0	$ 150
Available-for-sale, at fair value (amortized cost $1,764,380 in 2018 and $1,516,610 in 2017)	1,730,031	1,535,070
Trading securities, at fair value (amortized cost $12,047 in 2018 and $14,582 in 2017)	14,399	16,842
Equity securities at fair value (cost $65,458 in 2018 and $63,275 in 2017)	276,253	287,344
Mortgage loans	14,896	0
Other long-term investments	40,432	49,352
Short-term investments	175	175
Total investments	2,076,186	1,888,933
Cash and cash equivalents	52,252	95,562
Accrued investment income	16,873	13,841
Premiums receivable (net of allowance for doubtful accounts of $968 in 2018 and $1,255 in 2017)	379,293	328,513
Deferred policy acquisition costs	95,140	88,102
Property and equipment (primarily land and buildings, at cost, less accumulated depreciation of $50,431 in 2018 and $51,603 in 2017)	88,882	68,992
Reinsurance receivables and recoverables	66,148	63,194
Prepaid reinsurance premiums	5,856	3,749
Income taxes receivable	10,269	6,031
Goodwill and intangible assets	23,429	23,971
Other assets	16,632	16,409
Assets held for sale	0	1,586,134
TOTAL ASSETS	2,830,960	4,183,431
Liabilities
Losses and loss settlement expenses	1,278,077	1,224,183
Unearned premiums	508,850	465,391
Accrued expenses and other liabilities	158,761	167,396
Deferred income taxes	1,056	5,953
Liabilities held for sale	0	1,347,135
TOTAL LIABILITIES	1,946,744	3,210,058
Stockholders’ Equity
Common stock, $0.001 par value; authorized 75,000,000 shares; 25,066,384 and 24,916,806 shares issued and outstanding in 2018 and 2017, respectively	25	25
Additional paid-in capital	201,361	196,334
Retained earnings	752,581	608,700
Accumulated other comprehensive income (loss), net of tax	(69,751)	168,314
TOTAL STOCKHOLDERS’ EQUITY	884,216	973,373
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,830,960	$ 4,183,431

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Fixed maturities, held-to-maturity securities, fair value	$ 0	$ 150
Fixed maturities, available-for-sale securities, amortized cost	1,764,380	1,516,610
Fixed maturities, trading securities, amortized cost	12,047	14,582
Equity securities, amortized cost	65,458	63,275
Allowance for doubtful accounts	968	1,255
Property and equipment accumulated depreciation	$ 50,431	$ 51,603
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	25,066,384	24,916,806
Common stock, shares outstanding (in shares)	25,066,384	24,916,806

Consolidated Statements of Inco

Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues
Net premiums earned	$ 264,747	$ 255,758	$ 766,767	$ 737,424
Investment income, net of investment expenses	13,192	13,792	43,933	38,561
Net realized investment gains (includes reclassifications for net unrealized investment gains/(losses) on available-for-sale securities of ($496) and ($655) in 2018 and $419 and $5,799 in 2017; previously included in accumulated other comprehensive income)	13,971	67	7,404	3,397
Total revenues	291,910	269,617	818,104	779,382
Benefits, Losses and Expenses
Losses and loss settlement expenses	193,667	223,208	527,541	568,356
Amortization of deferred policy acquisition costs	51,758	52,986	152,207	154,845
Other underwriting expenses (includes reclassifications for employee benefit costs of $1,661 and $4,982 in 2018 and $1,352 and $4,056 in 2017; previously included in accumulated other comprehensive income)	33,887	25,817	105,994	69,900
Total benefits, losses and expenses	279,312	302,011	785,742	793,101
Income (loss) from continuing operations before income taxes	12,598	(32,394)	32,362	(13,719)
Federal income tax expense (benefit) (includes reclassifications of $453 and $1,184 in 2018 and $327 and ($610) in 2017; previously included in accumulated other comprehensive income)	1,528	(13,312)	771	(13,330)
Income (loss) from continuing operations	11,070	(19,082)	31,591	(389)
Income (loss) from discontinued operations, net of taxes	0	1,218	(1,912)	5,419
Gain on sale of discontinued operations, net of taxes	0	0	27,307	0
Net income (loss)	11,070	(17,864)	56,986	5,030
Other comprehensive income (loss)
Change in net unrealized appreciation on investments	(15,389)	18,995	(73,402)	64,614
Change in liability for underfunded employee benefit plans	0	0	0	0
Other comprehensive income (loss), before tax and reclassification adjustments	(15,389)	18,995	(73,402)	64,614
Income tax effect	3,232	(6,648)	15,414	(22,615)
Other comprehensive income (loss), after tax, before reclassification adjustments	(12,157)	12,347	(57,988)	41,999
Reclassification adjustment for net realized investment (gains) losses included in income	496	(419)	655	(5,799)
Reclassification adjustment for employee benefit costs included in expense	1,661	1,352	4,982	4,056
Total reclassification adjustments, before tax	2,157	933	5,637	(1,743)
Income tax effect	(453)	(327)	(1,184)	610
Total reclassification adjustments, after tax	1,704	606	4,453	(1,133)
Comprehensive income (loss)	$ 617	$ (4,911)	$ 3,451	$ 45,896
Diluted weighted average common shares outstanding (in shares)	25,626,951	24,960,086	25,607,305	25,666,405
Earnings (loss) per common share from continuing operations:
Basic (in dollars per share)	$ 0.44	$ (0.77)	$ 1.26	$ (0.01)
Diluted (in dollars per share)	0.43	(0.77)	1.23	(0.01)
Earnings (loss) per common share:
Basic (in dollars per share)	0.44	(0.72)	2.28	0.20
Diluted (in dollars per share)	$ 0.43	$ (0.72)	$ 2.23	$ 0.20

Consolidated Statements of In_2

Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Reclassifications for net unrealized gains on available-for-sale securities	$ (496)	$ 419	$ (655)	$ 5,799
Reclassification adjustment for employee benefit costs included in expense	1,661	1,352	4,982	4,056
Reclassifications adjustments - tax	$ 453	$ 327	$ 1,184	$ (610)

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands		Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss), net of tax
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of change in accounting principle		$ (191,244)			$ 191,244	$ (191,244)
Balance, beginning of year at Dec. 31, 2017		973,373	$ 25	$ 196,334	608,700	168,314
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares repurchased			0	(5,404)
Shares issued for stock-based awards			0	6,391
Compensation expense and related tax benefit for stock-based award grants				4,040
Net income		56,986			56,986
Dividends on common stock ($3.90 per share)					(97,635)
Change in net unrealized investment appreciation and depreciation of discontinued operations, sold					(6,714)	(50,756)	[1]
Change in liability for underfunded employee benefit plans	[2]					3,935
All other changes in stockholders’ equity accounts		(146,143)
Balance, end of period at Sep. 30, 2018		884,216	25	201,361	752,581	(69,751)
Balance, beginning of year at Jun. 30, 2018						(59,298)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		11,070
Balance, end of period at Sep. 30, 2018		$ 884,216	$ 25	$ 201,361	$ 752,581	$ (69,751)
[1]	The change in net unrealized appreciation is net of reclassification adjustments and income taxes.
[2]	The change in liability for underfunded employee benefit plans is net of reclassification adjustments and income taxes.

Consolidated Statement of Sto_2

Consolidated Statement of Stockholders' Equity (Unaudited) (Parentheticals)	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Statement of Stockholders' Equity [Abstract]
Shares repurchased (in shares)	120,372
Shares issued for stock-based awards (in shares)	269,950
Dividends on common stock, per share (in dollars per share) | $ / shares	$ 3.9

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows From Operating Activities
Net income	$ 56,986	$ 5,030
Less net income (loss) from discontinued operations, net of taxes	(1,912)	5,419
Adjustments to reconcile net income to net cash provided by operating activities
Net accretion of bond premium	6,518	6,663
Depreciation and amortization	4,015	3,501
Stock-based compensation expense	4,040	3,456
Net realized investment gains	(7,404)	(3,397)
Net cash flows from equity and trading investments	21,253	816
Deferred income tax benefit	(6,259)	(4,979)
Changes in:
Accrued investment income	(3,032)	(1,294)
Premiums receivable	(50,780)	(45,208)
Deferred policy acquisition costs	(7,038)	(4,115)
Reinsurance receivables	(2,954)	(5,409)
Prepaid reinsurance premiums	(2,107)	(39)
Income taxes receivable	(4,238)	(7,075)
Other assets	(223)	(1,358)
Losses and loss settlement expenses	53,894	113,384
Unearned premiums	43,459	46,641
Accrued expenses and other liabilities	(3,654)	(12,430)
Deferred income taxes	(8,298)	1,794
Other, net	3,951	1,920
Cash from operating activities - continuing operations	41,143	92,871
Cash from operating activities - discontinued operations	4,024	23,814
Cash from operating activities - gain on sale of discontinued operations	(34,851)	0
Total adjustments	10,316	116,685
Net cash provided by operating activities	69,214	116,296
Cash Flows From Investing Activities
Proceeds from sale of available-for-sale investments	129,865
Proceeds from sale of available-for-sale investments		3,388
Proceeds from call and maturity of available-for-sale investments	101,837	134,503
Proceeds from short-term and other investments	8,527	4,846
Proceeds from the sale of discontinued operations	276,055	0
Purchase of available-for-sale investments	(485,656)	(162,121)
Purchase of mortgage loans	(14,896)	0
Purchase of short-term and other investments	(3,824)	(4,864)
Net purchases and sales of property and equipment	(23,760)	(11,630)
Cash from investing activities - continuing operations	(11,852)	(35,878)
Cash from investing activities - discontinued operations	14,343	31,517
Net cash provided by (used in) investing activities	2,491	(4,361)
Cash Flows From Financing Activities
Payment of cash dividends	(97,635)	(20,364)
Repurchase of common stock	(5,404)	(29,784)
Issuance of common stock	6,391	2,960
Cash from financing activities - continuing operations	(96,648)	(47,188)
Cash from financing activities - discontinued operations	(11,547)	(46,239)
Net cash used in financing activities	(108,195)	(93,427)
Net Change in Cash and Cash Equivalents	(36,490)	18,508
Less: increase in cash and cash equivalents - discontinued operations	(6,820)	(9,092)
Net (decrease) increase in cash and cash equivalents - continuing operations	(43,310)	9,416
Cash and Cash Equivalents at Beginning of Period - Continuing Operations	95,562	89,194
Cash and Cash Equivalents at End of Period - Continuing Operations	$ 52,252	$ 98,610

Nature of Operations and Basis

Nature of Operations and Basis of Presentation	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations and Basis of Presentation	NATURE OF OPERATIONS AND BASIS OF PRESENTATION Nature of Business United Fire Group, Inc. ("UFG," the "Registrant," the "Company," "we," "us," or "our") and its consolidated subsidiaries and affiliates are engaged in the business of writing property and casualty insurance through a network of independent agencies. Our insurance company subsidiaries are licensed as a property and casualty insurer in 46 states and the District of Columbia. Discontinued Operations We have historically reported our operations in two business segments: property and casualty insurance and life insurance. On September 18, 2017, the Company signed a definitive agreement to sell its subsidiary, United Life Insurance Company ("United Life"), to Kuvare US Holdings, Inc. ("Kuvare") and on March 30, 2018, the sale closed. As a result, the life insurance business, previously a separate segment, was considered held for sale and reported as discontinued operations in the Consolidated Balance Sheets, Consolidated Statements of Income and Comprehensive Income and Consolidated Statements of Cash Flows for all periods presented in this Form 10-Q (collectively, the "Consolidated Financial Statements"). Subsequent to the announcement of this sale, our continuing operations were reported as one business segment. All current and prior periods reflected in this Form 10-Q have been presented as continuing and discontinued operations, as applicable, unless otherwise noted. For more information, refer to Note 11. Discontinued Operations. Basis of Presentation The unaudited consolidated interim financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial reporting and with the instructions to Form 10-Q and Regulation S-X promulgated by the SEC. Certain financial information that is included in our Annual Report on Form 10-K for the year ended December 31, 2017, including certain financial statement footnote disclosures, is not required by the rules and regulations of the SEC for interim financial reporting and have been condensed or omitted. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The financial statement categories that are most dependent on management estimates and assumptions include: investments; deferred policy acquisition costs; reinsurance receivables and recoverables; future policy benefits and losses, and loss settlement expenses; and pension and postretirement benefit obligations. Certain prior year amounts have been reclassified to conform to the current year presentation. Management of UFG believes the accompanying unaudited Consolidated Financial Statements contain all adjustments (consisting of normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for the periods presented. All significant intercompany transactions have been eliminated in consolidation. The results reported for the interim periods are not necessarily indicative of the results of operations that may be expected for the year. The unaudited Consolidated Financial Statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2017 . The review report of Ernst & Young LLP as of September 30, 2018 and for the three- and nine-month periods ended September 30, 2018 and 2017 accompanies the unaudited Consolidated Financial Statements included in Part I, Item 1 "Financial Statements." Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash, money market accounts, and non-negotiable certificates of deposit with original maturities of three months or less. For the nine-month periods ended September 30, 2018 and 2017 , we made payments for income taxes for continuing operations totaling $24,055 and $7,648 , respectively. We received a tax refund of $1,503 and $10,000 for the nine-month periods ended September 30, 2018 and 2017, respectively. For the nine-month periods ended September 30, 2018 and 2017 , we made no interest payments (excluding interest credited to policyholders’ accounts). Deferred Policy Acquisition Costs ("DAC") Certain costs associated with underwriting new business (primarily commissions, premium taxes and variable underwriting and policy issue expenses associated with successful acquisition efforts) are deferred. The following table is a summary of the components of DAC, including the related amortization recognized for the nine-month period ended September 30, 2018 . Continuing Operations Discontinued Operations Property & Casualty Insurance Life Insurance Total Recorded asset at beginning of period $ 88,102 $ 71,151 $ 159,253 Underwriting costs deferred 159,245 1,376 160,621 Amortization of deferred policy acquisition costs (152,207 ) (1,895 ) (154,102 ) Ending unamortized deferred policy acquisition costs $ 95,140 $ 70,632 $ 165,772 Impact of unrealized gains and losses on available-for-sale securities — 7,274 7,274 Sale of discontinued operations — (77,906 ) (77,906 ) Recorded asset at September 30, 2018 $ 95,140 $ — $ 95,140 Property and casualty insurance policy acquisition costs deferred are amortized as premium revenue is recognized. The method followed in computing DAC limits the amount of such deferred costs to their estimated realizable value. This takes into account the premium to be earned, losses and loss settlement expenses expected to be incurred and certain other costs expected to be incurred as the premium is earned. For traditional life insurance policies, DAC is amortized to income over the premium-paying period in proportion to the ratio of the expected annual premium revenue to the expected total premium revenue. Expected premium revenue and gross profits are based on the same mortality and withdrawal assumptions used in determining future policy benefits. These assumptions are not revised after policy issuance unless the recorded DAC asset is deemed to be unrecoverable from future expected profits. For non-traditional life insurance policies, DAC is amortized over the anticipated terms in proportion to the ratio of the expected annual gross profits to the total expected gross profits. Changes in the amount or timing of expected gross profits result in adjustments to the cumulative amortization of these costs. The effect on amortization of DAC for revisions to estimated gross profits is reported in earnings in the period the estimated gross profits are revised. The effect on DAC that results from the assumed realization of unrealized gains (losses) on investments allocated to non-traditional life insurance business is recognized with an offset to net unrealized investment appreciation as of the balance sheet date. The impact of unrealized gains and losses on available-for-sale securities decreased the DAC asset by $6,294 at December 31, 2017 . There was no impact of unrealized gains and losses on available-for-sale securities on the DAC asset at September 30, 2018 because the non-traditional life insurance business is part of discontinued operations, which was sold on March 30, 2018. Income Taxes The Tax Cuts and Jobs Act of 2017 (the "Tax Act") was enacted on December 22, 2017. The Tax Act significantly revised the U.S. corporate income tax laws including lowering the U.S. federal corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, which addresses how a company recognizes provisional amounts when a company does not have the necessary information available, prepared or analyzed in reasonable detail to complete its accounting for the effect of the changes in the Tax Act. The measurement period ends when a company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. As of September 30, 2018 we had not completed accounting for the tax effects of enactment of the Tax Act, however for certain items, we have made a reasonable estimate of the effects on our deferred tax balances. For other items where we could not make a reasonable estimate, we are still using existing accounting guidance and the provisions of the tax laws that were in place prior to the enactment. The Company will continue to refine this estimated provisional adjustment as we gain a more thorough understanding of the effects of enactment of the Tax Act on the Company, and the Company will take future guidance into consideration when it becomes available. Deferred tax assets and liabilities are established based on differences between the financial statement bases of assets and liabilities and the tax bases of those same assets and liabilities, using the currently enacted statutory tax rates. Deferred income tax expense is measured by the year-to-year change in the net deferred tax asset or liability, except for certain changes in deferred tax amounts that affect stockholders' equity and do not impact federal income tax expense. We reported consolidated federal income tax expense from consolidated continuing operations and discontinued operations of $1,528 and $8,878 for the three- and nine-month periods ended September 30, 2018 , respectively, compared to income tax benefit of $12,650 and $10,400 during the same periods of 2017. Our effective tax rate is different than the federal statutory rate of 21 percent , due principally to the effect of tax-exempt municipal bond interest income and non-taxable dividend income. The Company performs a quarterly review of its tax positions and makes a determination of whether it is more likely than not that the tax position will be sustained upon examination. If, based on review, it appears not more likely than not that the positions will be sustained, the Company will calculate any unrecognized tax benefits and, if necessary, calculate and accrue any related interest and penalties. We did no t recognize any liability for unrecognized tax benefits at September 30, 2018 or December 31, 2017 . In addition, we have not accrued for interest and penalties related to unrecognized tax benefits. However, if interest and penalties would need to be accrued related to unrecognized tax benefits, such amounts would be recognized as a component of federal income tax expense. With regard to the sale of the life insurance subsidiary, federal income taxes were allocated to continuing and discontinued operations in accordance with the Company’s tax allocation agreement and the terms of the definitive agreement related to the sale. We file a consolidated federal income tax return. We also file income tax returns in various state jurisdictions. We are no longer subject to federal or state income tax examination for years before 2015. Subsequent Events In the preparation of the accompanying financial statements, the Company has evaluated all material subsequent events or transactions that occurred after the balance sheet date through the date on which the financial statements were issued for potential recognition or disclosure in the Company's financial statements. The Company concl uded there are no material subsequent events or transactions that have occurred after the balance sheet date through the date on which the financial statements were issued. Recently Issued Accounting Standards Accounting Standards Adopted in 2018 Revenue Recognition In May 2014, the FASB issued comprehensive new guidance on revenue recognition which supersedes nearly all existing revenue recognition guidance under GAAP. The new guidance requires a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard creates a five-step model that requires companies to exercise judgment when considering the terms of the contract(s) and all relevant facts and circumstances. Insurance contracts are not within the scope of this new guidance. The new guidance is effective for annual and interim periods beginning after December 15, 2017. The Company adopted the guidance as of January 1, 2018. The adoption of the new guidance had no impact on the Company's reporting and disclosure of net premiums earned from insurance contracts, net investment income or net realized gains and losses, as these revenue streams are not within the scope of this new guidance. The remaining revenue streams are immaterial and not impacted by the new standard. Financial Instruments In January 2016, the FASB issued guidance updating certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments in this update supersede the guidance to classify equity securities with readily determinable fair values into different categories (for example, trading or available-for-sale) and require equity securities to be measured at fair value with changes in the fair value recognized through net income. The new guidance also simplifies the impairment process for equity investments without readily determinable fair values. The new guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption of the new guidance resulted in a reclassification from accumulated other comprehensive income to retained earnings of $191,244 after tax, which is equal to the amount of net unrealized gains and losses on available-for-sale equity securities on January 1, 2018. Also, in the three- and nine-month periods ended September 30, 2018, the Company recognized an after-tax net realized investment gain from continuing operations of $11,361 and $4,343 , respectively, in net income from the change in value of equity securities due to the adoption of this new accounting guidance. Statement of Cash Flows - Classification of Certain Cash Receipts and Payments In August 2016, the FASB issued an update that clarifies the classification of certain cash receipts and payments in the Statement of Cash Flows. The update addresses eight existing cash flow issues by clarifying the correct classification to establish uniformity in practice. The updated guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption had no impact on the Company's financial position and results of operations. Defined Benefit Retirement Plan Cost In March 2017, the FASB issued guidance on the presentation of net periodic benefit costs of defined benefit retirement benefit plans in the Statements of Income. The new guidance requires the service cost component of net periodic benefit cost of defined benefit plans to be presented in the same line in the Statements of Income as other employee compensation expenses. Also, under the new guidance, the service cost component of the net periodic benefit costs will be the only portion of costs subject to be capitalized in assets. The new guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption of the new guidance resulted in a change in the capitalization of deferred acquisition costs to only include the pension and post retirement service costs in place of the total net periodic benefit costs. The adoption had an immaterial impact on the Company's financial position and results of operations. Additionally, the adoption did not impact the Company's presentation in the Statements of Income as all net periodic benefit costs and employee compensation expenses are included within the same category in the Statements of Income. Share-Based Payments In May 2017, the FASB issued new guidance which clarifies and addresses the diversity in practice when there is a change in the terms of a share-based payment award. The updated guidance clarifies when to use modification accounting when there is a change in the terms of a share-based payment and provides three conditions where modification accounting should not be applied. The new guidance is effective for annual and interim periods beginning after December 15, 2017. The Company adopted the new guidance as of January 1, 2018. The adoption had no impact on the Company's financial position and results of operations. Pending Adoption of Accounting Standards Intangibles - Other Internal Use Software In August 2018, the FASB issued guidance to align the requirements for capitalizing implementation costs incurred in a cloud computing hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance requires the Company to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020. Management currently believes that the adoption will not have an impact on the Company's financial position or results of operations. Leases In February 2016, the FASB issued guidance on the accounting for leases. The new guidance requires lessees to place a right-of-use asset and a lease liability on their balance sheets. The lease liability will be based on the present value of the future lease payments and the right-of-use asset will be based on the liability. Expenses will be recognized on the income statement in a similar manner as previous methods. The new guidance also requires companies to classify all leases as operating leases or financing leases. We believe all of our leases will be classified as operating leases. The new guidance is effective for annual periods beginning after December 15, 2018 and interim periods within those years. The Company will adopt the new guidance under a modified retrospective transition approach using the package of practical expedients and the Company will not adopt the hindsight practical expedient as of January 1, 2019. We expect to use the accounting standard adoption date as our date of initial application. The Company has created an inventory of its operating leases and has calculated the total undiscounted future minimum lease payments, which are disclosed in Note 13 Lease Commitments of the Company's Annual Report on Form 10-K for the year ended December 31, 2017. The undiscounted future minimum lease payments at December 31, 2017 are $22.5 million , which represents less than 1.0 percent of the Company's total assets at December 31, 2017. The Company plans to use their incremental borrowing rate of their credit facility described in Note 9 Credit Facility of this Form 10-Q, as the discount rate for calculating the minimum lease payments. For leases that exist prior to the date of initial application, the Company has elected to use the remaining lease term as of the date of initial application to measure its incremental borrowing rate. The Company has reviewed and updated its processes and controls under the new guidance. Management currently believes that the adoption will not have a significant impact on the Company's financial position or results of operations. Financial Instruments - Credit Losses In June 2016, the FASB issued new guidance on the measurement of credit losses for most financial instruments. The new guidance replaces the current incurred loss model for recognizing credit losses with an expected loss model for instruments measured at amortized cost and requires allowances to be recorded for available-for-sale debt securities rather than reduce the carrying amount. These allowances will be remeasured each reporting period. The new guidance is effective for annual periods beginning after December 15, 2019 and interim periods within those years. The new guidance will impact the Company's portfolio of mortgage loan investments which are carried at amortized cost and are impairment model related to our available-for-sale portfolio. The Company will adopt the new guidance as of January 1, 2020 and is currently evaluating the impact on the Company's financial position, results of operations and key processes. Income Taxes - Intra-entity Transfers In October 2016, the FASB issued new guidance on the income tax treatment of intra-entity transfers. The new guidance replaces the current guidance which prohibits the recognition of current and deferred income taxes of intra-entity transfers until the asset is sold externally. Under the new guidance, the exemption is eliminated and income taxes will be recognized on transfers of intra-entity assets. The new guidance is effective for annual periods beginning after December 15, 2018 and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2019. Management currently believes that the adoption will not have a significant impact on the Company's financial position and results of operations. Goodwill In January 2017, the FASB issued new guidance which simplifies the test for goodwill impairment. The new guidance eliminates the implied fair value calculation when measuring a goodwill impairment charge. Under the new guidance, impairment charges will be based on the excess of the carrying value over fair value of goodwill. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020 and it currently believes the adoption will have no impact on the Company's financial position and results of operations. Financial Instruments - Disclosures In August 2018, the FASB issued new guidance which modifies the disclosure requirements on fair value measurements of financial instruments. The new guidance removes the requirement for disclosing the amount and reason for transfers between Level 1 and Level 2 investment securities and the valuation processes for Level 3 fair value measurements. The guidance also requires additional disclosures on the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020. The new guidance will modify existing fair value disclosures, but will not have an impact on the Company's financial position and results of operations. Defined Benefit Plans - Disclosures

Summary of Investments

Summary of Investments	9 Months Ended
	Sep. 30, 2018
Investments [Abstract]
Summary of Investments	SUMMARY OF INVESTMENTS Fair Value of Investments A reconciliation of the amortized cost (cost for equity securities) to fair value of investments in held-to-maturity and available-for-sale fixed maturity and equity securities, presented on a consolidated basis, including both continuing and discontinued operations as of September 30, 2018 and December 31, 2017 , is as follows: September 30, 2018 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 27,195 $ — $ 354 $ 26,841 U.S. government agency 212,542 310 5,862 206,990 States, municipalities and political subdivisions General obligations: Midwest 99,023 574 1,359 98,238 Northeast 37,389 251 289 37,351 South 115,440 333 2,559 113,214 West 107,993 643 1,998 106,638 Special revenue: Midwest 140,245 817 1,735 139,327 Northeast 63,758 240 1,901 62,097 South 241,007 611 6,177 235,441 West 145,072 737 3,411 142,398 Foreign bonds 9,722 49 24 9,747 Public utilities 54,606 129 1,191 53,544 Corporate bonds Energy 26,929 77 320 26,686 Industrials 56,127 103 699 55,531 Consumer goods and services 52,398 42 763 51,677 Health care 18,062 58 134 17,986 Technology, media and telecommunications 26,622 34 534 26,122 Financial services 77,788 164 1,888 76,064 Mortgage-backed securities 7,985 13 260 7,738 Collateralized mortgage obligations Government national mortgage association 78,797 121 3,602 75,316 Federal home loan mortgage corporation 108,666 7 2,957 105,716 Federal national mortgage association 53,776 2 1,924 51,854 Asset-backed securities 3,238 318 41 3,515 Total Available-for-Sale Fixed Maturities $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 December 31, 2017 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value HELD-TO-MATURITY Fixed maturities: Bonds Corporate bonds - financial services $ 150 $ — $ — $ 150 Mortgage-backed securities 34 — — 34 Total Held-to-Maturity Fixed Maturities $ 184 $ — $ — $ 184 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 17,073 $ 4 $ 186 $ 16,891 U.S. government agency 121,574 1,311 717 122,168 States, municipalities and political subdivisions General obligations: Midwest 107,689 2,446 439 109,696 Northeast 47,477 1,174 10 48,641 South 139,870 2,462 813 141,519 West 111,123 2,351 463 113,011 Special revenue: Midwest 155,475 3,620 351 158,744 Northeast 79,028 1,351 619 79,760 South 260,145 5,218 1,851 263,512 West 156,576 2,929 1,198 158,307 Foreign bonds 51,361 1,441 49 52,753 Public utilities 206,028 3,386 270 209,144 Corporate bonds Energy 93,191 1,972 110 95,053 Industrials 218,067 3,881 241 221,707 Consumer goods and services 183,253 3,498 494 186,257 Health care 74,125 1,312 29 75,408 Technology, media and telecommunications 146,853 2,376 250 148,979 Financial services 277,824 5,769 442 283,151 Mortgage-backed securities 13,828 101 238 13,691 Collateralized mortgage obligations Government national mortgage association 157,836 1,921 2,274 157,483 Federal home loan mortgage corporation 201,320 1,879 4,047 199,152 Federal national mortgage association 104,903 1,703 1,174 105,432 Asset-backed securities 4,282 362 8 4,636 Total Available-for-Sale Fixed Maturities $ 2,928,901 $ 52,467 $ 16,273 $ 2,965,095 Equity securities: Common stocks Public utilities $ 6,394 $ 16,075 $ 30 $ 22,439 Energy 6,514 8,171 120 14,565 Industrials 13,117 53,522 120 66,519 Consumer goods and services 10,110 15,742 164 25,688 Health care 7,763 32,340 — 40,103 Technology, media and telecommunications 6,067 11,556 115 17,508 Financial services 11,529 104,985 67 116,447 Nonredeemable preferred stocks 992 305 — 1,297 Total Available-for-Sale Equity Securities $ 62,486 $ 242,696 $ 616 $ 304,566 Total Available-for-Sale Securities $ 2,991,387 $ 295,163 $ 16,889 $ 3,269,661 The following table is a reconciliation of the amortized cost (cost for equity securities) to fair value of investments in held-to-maturity and available-for-sale fixed maturity and equity securities for continuing and discontinued operations by investment type at September 30, 2018 and December 31, 2017 : September 30, 2018 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 Discontinued operations — — — — Total Available-for-Sale Fixed Maturities $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value HELD-TO-MATURITY Fixed maturities: Continuing operations $ 150 $ — $ — $ 150 Discontinued operations 34 — — 34 Total Held-to-Maturity Fixed Maturities $ 184 $ — $ — $ 184 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,516,610 $ 27,412 $ 8,952 $ 1,535,070 Discontinued operations 1,412,291 25,055 7,321 1,430,025 Total Available-for-Sale Fixed Maturities 2,928,901 52,467 16,273 2,965,095 Equity securities: Continuing operations $ 57,387 $ 224,065 $ 539 $ 280,913 Discontinued operations 5,099 18,631 77 23,653 Total Available-for-Sale Equity Securities 62,486 242,696 616 304,566 Total Available-for-Sale Securities $ 2,991,387 $ 295,163 $ 16,889 $ 3,269,661 Maturities The amortized cost and fair value of held-to-maturity, available-for-sale and trading fixed maturity securities at September 30, 2018 , by contractual maturity, are shown in the following tables. The table below includes investments from continuing operations. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Asset-backed securities, mortgage-backed securities and collateralized mortgage obligations may be subject to prepayment risk and are therefore not categorized by contractual maturity. Maturities Available-For-Sale Trading September 30, 2018 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 48,539 $ 48,703 $ 3,347 $ 3,431 Due after one year through five years 212,322 211,709 6,835 8,797 Due after five years through 10 years 518,809 513,464 — — Due after 10 years 732,248 712,016 1,865 2,171 Asset-backed securities 3,238 3,515 — — Mortgage-backed securities 7,985 7,738 — — Collateralized mortgage obligations 241,239 232,886 — — $ 1,764,380 $ 1,730,031 $ 12,047 $ 14,399 Net Realized Investment Gains and Losses Net realized gains on disposition of investments are computed using the specific identification method and are included in the computation of net income. A summary of the components of net realized investment gains (losses) is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Net realized investment gains (losses) from continuing operations: Fixed maturities: Available-for-sale $ 22 $ 118 $ (171 ) $ 645 Trading securities Change in fair value 351 (43 ) 92 504 Sales 171 72 1,076 117 Equity securities 13,944 (80 ) 6,924 1,842 Real estate (517 ) — (517 ) 289 Total net realized investment gains from continuing operations $ 13,971 $ 67 $ 7,404 $ 3,397 Total net realized investment gains (losses) from discontinued operations — 296 (1,057 ) 3,600 Total net realized investment gains $ 13,971 $ 363 $ 6,347 $ 6,997 The proceeds and gross realized gains on the sale of available-for-sale fixed maturity securities from continuing operations are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Proceeds from sales $ 105,871 $ 2,293 $ 129,865 $ 3,388 Gross realized gains — — 140 1,046 Gross realized losses (94 ) — (401 ) — The proceeds and gross realized gains on the sale of available-for-sale fixed maturity securities from discontinued operations are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Proceeds from sales $ — $ 1,844 $ — $ 5,807 Gross realized gains — — — 1,254 Gross realized losses — — — (78 ) Note: The sale of the life insurance business was completed on March 30, 2018. There were no sales of held-to-maturity securities during the three- and nine-month periods ended September 30, 2018 and 2017 . Our investment portfolio includes trading securities with embedded derivatives. These securities are primarily convertible securities which are recorded at fair value. Income or loss, including the change in the fair value of these trading securities, is recognized currently in earnings as a component of net realized investment gains. Our portfolio of trading securities had a fair value of $14,399 and $16,842 at September 30, 2018 and December 31, 2017 , respectively. Funding Commitment Pursuant to an agreement with one of our limited liability partnership investments, we are contractually committed through July 31, 2028 to make capital contributions upon request of the partnership. Our remaining potential contractual obligation was $23,702 at September 30, 2018 . Unrealized Appreciation A summary of the changes in net unrealized investment appreciation during the reporting period is as follows: Nine Months Ended September 30, 2018 2017 Change in net unrealized investment appreciation Available-for-sale fixed maturities $ (80,023 ) $ 34,837 Available-for-sale equity securities — 27,559 Deferred policy acquisition costs 7,274 (3,582 ) Income tax effect 15,279 (20,584 ) Net unrealized investment depreciation of discontinued operations, sold 6,714 — Cumulative change in accounting principles (191,244 ) — Total change in net unrealized investment appreciation, net of tax $ (242,000 ) $ 38,230 We continually monitor the difference between our cost basis and the estimated fair value of our investments. Our accounting policy for impairment recognition requires other-than-temporary impairment ("OTTI") charges to be recorded when we determine that it is more likely than not that we will be unable to collect all amounts due according to the contractual terms of the fixed maturity security or that the anticipated recovery in fair value of the equity security will not occur in a reasonable amount of time. Impairment charges on investments are recorded based on the fair value of the investments at the measurement date or based on the value calculated using a discounted cash flow model. Credit-related impairments on fixed maturity securities that we do not plan to sell, and for which we are not more likely than not to be required to sell, are recognized in net income. Any non-credit related impairment is recognized as a component of other comprehensive income. Factors considered in evaluating whether a decline in value is other-than-temporary include: the length of time and the extent to which fair value has been less than cost; the financial condition and near-term prospects of the issuer; our intention to hold the investment; and the likelihood that we will be required to sell the investment. The tables on the following pages summarize our fixed maturity and equity securities that were in an unrealized loss position on a consolidated basis, including both continuing and discontinued operations at September 30, 2018 and December 31, 2017 . The securities are presented by the length of time they have been continuously in an unrealized loss position. It is possible that we could recognize OTTI charges in future periods on securities held at September 30, 2018 , if future events or information cause us to determine that a decline in fair value is other-than-temporary. We have evaluated the near-term prospects of the issuers of our fixed maturity securities in relation to the severity and duration of the unrealized loss and determined that these losses did not warrant the recognition of an OTTI charge at September 30, 2018 or at September 30, 2017 . We have no intent to sell, and it is more likely than not that we will not be required to sell, these securities until the fair value recovers to at least equal our cost basis or the securities mature. September 30, 2018 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury 5 $ 18,989 $ 107 5 $ 7,852 $ 247 $ 26,841 $ 354 U.S. government agency 34 158,156 4,096 7 34,516 1,766 192,672 5,862 States, municipalities and political subdivisions General obligations Midwest 17 26,098 234 5 21,109 1,125 47,207 1,359 Northeast 5 14,211 152 1 3,500 137 17,711 289 South 23 46,353 700 12 29,344 1,859 75,697 2,559 West 21 47,340 680 8 24,676 1,318 72,016 1,998 Special revenue Midwest 31 56,940 672 8 20,569 1,063 77,509 1,735 Northeast 7 18,451 336 11 27,327 1,565 45,778 1,901 South 40 102,910 1,578 32 70,521 4,599 173,431 6,177 West 19 37,030 573 23 52,433 2,838 89,463 3,411 Foreign bonds 1 2,973 24 — — — 2,973 24 Public utilities 19 39,011 916 1 4,860 275 43,871 1,191 Corporate bonds Energy 10 17,219 320 — — — 17,219 320 Industrials 16 39,427 513 1 3,860 186 43,287 699 Consumer goods and services 18 40,446 737 1 974 26 41,420 763 Health care 5 11,515 134 — — — 11,515 134 Technology, media and telecommunications 9 20,569 406 1 1,833 128 22,402 534 Financial services 24 54,884 1,445 2 6,154 443 61,038 1,888 Mortgage-backed securities 32 2,355 55 13 3,602 205 5,957 260 Collateralized mortgage obligations Government national mortgage association 11 27,027 856 18 39,403 2,746 66,430 3,602 Federal home loan mortgage corporation 21 77,751 967 11 27,390 1,990 105,141 2,957 Federal national mortgage association 16 29,346 684 8 22,072 1,240 51,418 1,924 Asset-backed securities 1 2,882 41 — — — 2,882 41 Total Available-for-Sale Fixed Maturities 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 December 31, 2017 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Depreciation Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury 5 $ 10,370 $ 67 2 $ 5,765 $ 119 $ 16,135 $ 186 U.S. government agency 11 64,842 390 5 19,372 327 84,214 717 States, municipalities and political subdivisions General obligations Midwest 2 2,177 8 3 19,729 431 21,906 439 Northeast — — — 1 3,644 10 3,644 10 South 3 7,959 32 11 29,545 781 37,504 813 West 2 5,944 18 8 25,755 445 31,699 463 Special revenue Midwest 2 3,486 15 7 19,130 336 22,616 351 Northeast 1 4,471 37 11 28,476 582 32,947 619 South 8 7,749 107 27 69,917 1,744 77,666 1,851 West 3 5,424 16 22 56,753 1,182 62,177 1,198 Foreign bonds 1 857 49 — — — 857 49 Public utilities 8 19,186 79 5 8,446 191 27,632 270 Corporate bonds Energy 1 2,236 13 1 1,606 97 3,842 110 Industrials 10 27,773 146 2 4,275 95 32,048 241 Consumer goods and services 14 32,781 248 3 6,813 246 39,594 494 Health care 4 9,947 29 — — — 9,947 29 Technology, media and telecommunications 12 35,319 122 3 10,413 128 45,732 250 Financial services 22 50,144 256 4 11,389 186 61,533 442 Mortgage-backed securities 10 2,458 18 10 6,641 220 9,099 238 Collateralized mortgage obligations Government national mortgage association 20 49,764 629 17 46,969 1,645 96,733 2,274 Federal home loan mortgage corporation 11 37,543 577 20 75,679 3,470 113,222 4,047 Federal national mortgage association 11 31,958 342 11 20,123 832 52,081 1,174 Asset-backed securities 1 992 8 — — — 992 8 Total Available-for-Sale Fixed Maturities 162 $ 413,380 $ 3,206 173 $ 470,440 $ 13,067 $ 883,820 $ 16,273 Equity securities: Common stocks Public utilities — $ — $ — 1 $ 278 $ 30 $ 278 $ 30 Energy 2 528 120 — — — 528 120 Industrials 1 99 13 5 193 107 292 120 Consumer goods and services — — — 2 151 164 151 164 Technology, media and telecommunications 2 466 95 1 4 20 470 115 Financial services 2 193 55 1 9 12 202 67 Total Available-for-Sale Equity Securities 7 $ 1,286 $ 283 10 $ 635 $ 333 $ 1,921 $ 616 Total Available-for-Sale Securities 169 $ 414,666 $ 3,489 183 $ 471,075 $ 13,400 $ 885,741 $ 16,889 The tables on the following pages are a reconciliation for continuing and discontinued operations of our total fixed maturity and equity securities that were in an unrealized loss position at September 30, 2018 and December 31, 2017 . The sale of our life insurance business was completed on March 30, 2018. The securities are presented by the length of time they have been continuously in an unrealized loss position: September 30, 2018 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Continuing operations 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 Discontinued operations — — — — — — — — Total Available-for-Sale Fixed Maturities 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Continuing operations 88 $ 232,489 $ 1,791 112 $ 302,815 $ 7,161 $ 535,304 $ 8,952 Discontinued operations 74 180,891 1,415 61 167,625 5,906 348,516 7,321 Total Available-for-Sale Fixed Maturities 162 $ 413,380 $ 3,206 173 $ 470,440 $ 13,067 $ 883,820 $ 16,273 Equity securities: Continuing operations 5 $ 1,129 $ 236 6 $ 385 $ 303 $ 1,514 $ 539 Discontinued operations 2 157 47 4 250 30 407 77 Total Available-for-Sale Equity Securities 7 $ 1,286 $ 283 10 $ 635 $ 333 $ 1,921 $ 616 Total Available-for-Sale Securities 169 $ 414,666 $ 3,489 183 $ 471,075 $ 13,400 $ 885,741 $ 16,889

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	FAIR VALUE OF FINANCIAL INSTRUMENTS Current accounting guidance on fair value measurements includes the application of a fair value hierarchy that requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Our financial instruments that are recorded at fair value are categorized into a three-level hierarchy, which is based upon the priority of the inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets (i.e., Level 1) and the lowest priority to unobservable inputs (i.e., Level 3). If the inputs used to measure fair value fall within different levels of the hierarchy, the category level is based on the lowest priority level input that is significant to the fair value measurement of the financial instrument. Financial instruments recorded at fair value are categorized in the fair value hierarchy as follows: • Level 1 : Valuations are based on unadjusted quoted prices in active markets for identical financial instruments that we have the ability to access. • Level 2 : Valuations are based on quoted prices for similar financial instruments, other than quoted prices included in Level 1, in markets that are not active or on inputs that are observable either directly or indirectly for the full term of the financial instrument. • Level 3 : Valuations are based on pricing or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement of the financial instrument. Such inputs may reflect management's own assumptions about the assumptions a market participant would use in pricing the financial instrument. We review our fair value hierarchy categorizations on a quarterly basis at which time the classification of certain financial instruments may change if the input observations have changed. Transfers between levels, if any, are recorded as of the beginning of the reporting period. To determine the fair value of the majority of our investments, we utilize prices obtained from independent, nationally recognized pricing services. We obtain one price for each security. When the pricing services cannot provide a determination of fair value for a specific security, we obtain non-binding price quotes from broker-dealers with whom we have had several years' experience and who have demonstrated knowledge of the subject security. We request and utilize one broker quote per security. In order to determine the proper classification in the fair value hierarchy for each security where the price is obtained from an independent pricing service, we obtain and evaluate the vendors' pricing procedures and inputs used to price the security, which include unadjusted quoted market prices for identical securities, such as a New York Stock Exchange closing price, and quoted prices for identical securities in markets that are not active. For fixed maturity securities, an evaluation of interest rates and yield curves observable at commonly quoted intervals, volatility, prepayment speeds, credit risks and default rates may also be performed. We have determined that these processes and inputs result in fair values and classifications consistent with the applicable accounting guidance on fair value measurements. When possible, we use quoted market prices to determine the fair value of fixed maturities, equity securities, trading securities and short-term investments. When quoted market prices do not exist, we base estimates of fair value on market information obtained from independent pricing services and brokers or on valuation techniques that are both unobservable and significant to the overall fair value measurement of the financial instrument. Such inputs may reflect management's own assumptions about the assumptions a market participant would use in pricing the financial instrument. Our valuation techniques are discussed in more detail throughout this section. The mortgage loan portfolio consists entirely of commercial mortgage loans. The fair value of our mortgage loans is determined by modeling performed by our third party fund manager based on the stated principal and coupon payments provided for in the loan agreements. These cash flows are then discounted using an appropriate risk-adjusted discount rate to determine the security's fair value. The fair value of our policy loans is equivalent to carrying value, which is a reasonable estimate of fair value and is classified as Level 2. We do not make policy loans for amounts in excess of the cash surrender value of the related policy. In all instances, the policy loans are fully collateralized by the related liability for future policy benefits for traditional insurance policies or by the policyholders' account balance for non-traditional policies. Our other long-term investments consist primarily of our interests in limited liability partnerships that are recorded on the equity method of accounting. The fair value of the partnerships is obtained from the fund managers, which is based on the fair value of the underlying investments held in the partnerships. In management's opinion, these values represent a reasonable estimate of fair value. We have not adjusted the net asset value provided by the fund managers. For cash and cash equivalents and accrued investment income, carrying value is a reasonable estimate of fair value due to the short-term nature of these financial instruments. The Company formed a rabbi trust in 2014 to fund obligations under the United Fire & Casualty Company Supplemental Executive Retirement and Deferral Plan (the "Executive Retirement Plan"). Within the rabbi trust, corporate-owned life insurance ("COLI") policies are utilized as an investment vehicle and source of funding for the Company's Executive Retirement Plan. The COLI policies invest in mutual funds, which are priced daily by independent sources. As of September 30, 2018 , the cash surrender value of the COLI policies was $4,998 , which is equal to the fair value measured using Level 2 inputs, based on the underlying assets of the COLI policies, and is included in other assets in the Consolidated Balance Sheets. Policy reserves are developed and recorded for deferred annuities, which is an interest-sensitive product, and income annuities. The fair value of the reserve liability for these annuity products is based upon an estimate of the discounted pretax cash flows that are forecast for the underlying business, which is a Level 3 fair value measurement. We base the discount rate on the current U.S. Treasury spot yield curve, which is then risk-adjusted for nonperformance risk and, for interest-sensitive business and market risk factors. The risk-adjusted discount rate is developed using interest rates that are available in the market and representative of the risks applicable to the underlying business. A summary of the carrying value and estimated fair value of our financial instruments from continuing operations at September 30, 2018 and December 31, 2017 is as follows: September 30, 2018 December 31, 2017 Fair Value Carrying Value Fair Value Carrying Value Assets Investments Fixed maturities: Held-to-maturity securities $ — $ — $ 150 $ 150 Available-for-sale securities 1,730,031 1,730,031 1,535,070 1,535,070 Trading securities 14,399 14,399 16,842 16,842 Equity securities 276,253 276,253 287,344 287,344 Mortgage loans 14,749 14,896 — — Other long-term investments 40,432 40,432 49,352 49,352 Short-term investments 175 175 175 175 Cash and cash equivalents 52,252 52,252 95,562 95,562 Corporate-owned life insurance 4,998 4,998 4,029 4,029 A summary of the carrying value and estimated fair value of our financial instruments from discontinued operations at September 30, 2018 and December 31, 2017 is as follows: September 30, 2018 December 31, 2017 Fair Value Carrying Value Fair Value Carrying Value Assets Investments Fixed maturities: Held-to-maturity securities $ — $ — $ 34 $ 34 Available-for-sale securities — — 1,430,025 1,430,025 Equity securities: Available-for-sale securities — — 23,653 23,653 Mortgage loans — — 3,594 3,435 Policy loans — — 5,815 5,815 Other long-term investments — — 16,437 16,437 Cash and cash equivalents — — 15,851 15,851 Liabilities Policy reserves Annuity (accumulations) $ — $ — $ 591,702 $ 611,866 Annuity (benefit payments) — — 147,038 93,560 Note: The sale of the life insurance business was completed on March 30, 2018. The following tables present the categorization for our financial instruments measured at fair value on a recurring basis. The table includes financial instruments from both continuing and discontinued operations at September 30, 2018 and December 31, 2017 : September 30, 2018 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 26,841 $ — $ 26,841 $ — U.S. government agency 206,990 — 206,990 — States, municipalities and political subdivisions General obligations Midwest 98,238 — 98,238 — Northeast 37,351 — 37,351 — South 113,214 — 113,214 — West 106,638 — 106,638 — Special revenue Midwest 139,327 — 139,327 — Northeast 62,097 — 62,097 — South 235,441 — 235,441 — West 142,398 — 142,398 — Foreign bonds 9,747 — 9,747 — Public utilities 53,544 — 53,544 — Corporate bonds Energy 26,686 — 26,686 — Industrials 55,531 — 55,531 — Consumer goods and services 51,677 — 51,677 — Health care 17,986 — 17,986 — Technology, media and telecommunications 26,122 — 26,122 — Financial services 76,064 — 75,814 250 Mortgage-backed securities 7,738 — 7,738 — Collateralized mortgage obligations Government national mortgage association 75,316 — 75,316 — Federal home loan mortgage corporation 105,716 — 105,716 — Federal national mortgage association 51,854 — 51,854 — Asset-backed securities 3,515 — 2,883 632 Total Available-for-Sale Fixed Maturities $ 1,730,031 $ — $ 1,729,149 $ 882 TRADING Fixed maturities: Bonds U.S. Treasury $ 200 $ — $ 200 $ — Corporate bonds — — — Industrials 1,812 — 1,812 $ — Consumer goods and services 1,750 — 1,750 — Health care 3,182 — 3,182 — Technology, media and telecommunications 2,694 — 2,694 — Financial services 2,114 — 2,114 — Redeemable preferred stocks 2,647 2,647 — — Total Trading Securities $ 14,399 $ 2,647 $ 11,752 $ — EQUITY SECURITIES Common stocks Public utilities $ 15,563 $ 15,563 $ — $ — Energy 13,647 13,647 — — Industrials 62,741 62,741 — — Consumer goods and services 25,870 25,870 — — Health care 22,991 22,991 — — Technology, media and telecommunications 15,047 15,047 — — Financial services 114,708 114,708 — — Nonredeemable preferred stocks 5,686 5,091 — 595 Total Equity Securities $ 276,253 $ 275,658 $ — $ 595 Short-Term Investments $ 175 $ 175 $ — $ — Money Market Accounts $ 3,824 $ 3,824 $ — $ — Corporate-Owned Life Insurance $ 4,998 $ — $ 4,998 $ — Total Assets Measured at Fair Value $ 2,029,680 $ 282,304 $ 1,745,899 $ 1,477 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 16,891 $ — $ 16,891 $ — U.S. government agency 122,168 — 122,168 — States, municipalities and political subdivisions General obligations Midwest 109,696 — 109,696 — Northeast 48,641 — 48,641 — South 141,519 — 141,519 — West 113,011 — 113,011 — Special revenue Midwest 158,744 — 158,744 — Northeast 79,760 — 79,760 — South 263,512 — 263,512 — West 158,307 — 158,307 — Foreign bonds 52,753 — 52,753 — Public utilities 209,144 — 209,144 — Corporate bonds Energy 95,053 — 95,053 — Industrials 221,707 — 221,707 — Consumer goods and services 186,257 — 185,589 668 Health care 75,408 — 75,408 — Technology, media and telecommunications 148,979 — 148,979 — Financial services 283,151 — 275,474 7,677 Mortgage-backed securities 13,691 — 13,691 — Collateralized mortgage obligations Government national mortgage association 157,483 — 157,483 — Federal home loan mortgage corporation 199,152 — 199,152 — Federal national mortgage association 105,432 — 105,432 — Asset-backed securities 4,636 — 3,989 647 Total Available-for-Sale Fixed Maturities $ 2,965,095 $ — $ 2,956,103 $ 8,992 Equity securities: Common stocks Public utilities $ 22,439 $ 22,439 $ — $ — Energy 14,565 14,565 — — Industrials 66,519 66,517 2 — Consumer goods and services 25,688 25,688 — — Health care 40,103 40,103 — — Technology, media and telecommunications 17,508 17,508 — — Financial services 116,447 116,447 — — Nonredeemable preferred stocks 1,297 415 — 882 Total Available-for-Sale Equity Securities $ 304,566 $ 303,682 $ 2 $ 882 Total Available-for-Sale Securities $ 3,269,661 $ 303,682 $ 2,956,105 $ 9,874 TRADING Fixed maturities: Bonds Corporate bonds Industrials $ 2,220 $ — $ 2,220 $ — Consumer goods and services 1,535 — 1,535 — Health care 3,741 — 3,741 — Technology, media and telecommunications 1,221 — 1,221 — Financial services 5,566 — 5,566 — Redeemable preferred stocks 2,559 2,559 — — Equity securities: Public utilities 874 874 — — Energy 190 190 — — Industrials 989 989 — — Consumer goods and services 1,314 1,314 — — Health care 325 325 — — Financial services 198 198 — — Nonredeemable preferred stocks 2,541 2,541 — — Total Trading Securities $ 23,273 $ 8,990 $ 14,283 $ — Short-Term Investments $ 175 $ 175 $ — $ — Money Market Accounts $ 16,824 $ 16,824 $ — $ — Corporate-Owned Life Insurance $ 4,029 $ — $ 4,029 $ — Total Assets Measured at Fair Value $ 3,313,962 $ 329,671 $ 2,974,417 $ 9,874 The following tables are a reconciliation for both continuing and discontinued operations of the presentation of the categorization for our financial instruments measured at fair value on a recurring basis at September 30, 2018 and December 31, 2017 : September 30, 2018 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,730,031 $ 1,729,149 $ 882 Discontinued operations — — — — Total Available-for-Sale Fixed Maturities $ 1,730,031 $ — $ 1,729,149 $ 882 TRADING Fixed maturities: Continuing operations $ 14,399 $ 2,647 $ 11,752 $ — Discontinued operations — — — — Total Trading Securities $ 14,399 $ 2,647 $ 11,752 $ — EQUITY SECURITIES Continuing operations $ 276,253 $ 275,658 $ — $ 595 Discontinued operations — — — — Total Equity Securities $ 276,253 $ 275,658 $ — $ 595 SHORT-TERM INVESTMENTS Continuing operations $ 175 $ 175 Discontinued operations — — — $ — Short-Term Investments $ 175 $ 175 $ — $ — MONEY MARKET ACCOUNTS Continuing operations $ 3,824 $ 3,824 Discontinued operations — — — — Money Market Accounts $ 3,824 $ 3,824 $ — $ — CORPORATE-OWNED LIFE INSURANCE Continuing operations $ 4,998 $ 4,998 Discontinued operations — — — — Corporate-Owned Life Insurance $ 4,998 $ — $ 4,998 $ — Total Assets Measured at Fair Value $ 2,029,680 $ 282,304 $ 1,745,899 $ 1,477 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,535,070 $ — $ 1,534,323 $ 747 Discontinued operations 1,430,025 — 1,421,780 8,245 Total Available-for-Sale Fixed Maturities $ 2,965,095 $ — $ 2,956,103 $ 8,992 Equity securities: Continuing operations $ 280,913 $ 280,031 $ — $ 882 Discontinued operations 23,653 23,651 2 — Total Equity Securities $ 304,566 $ 303,682 $ 2 $ 882 Total Available-for-Sale Securities $ 3,269,661 $ 303,682 $ 2,956,105 $ 9,874 TRADING Fixed maturities: Continuing operations $ 16,842 $ 2,559 $ 14,283 $ — Discontinued operations — — — — Equity securities: Continuing operations 6,431 6,431 — — Discontinued operations — — — — Total Trading Securities $ 23,273 $ 8,990 $ 14,283 $ — SHORT-TERM INVESTMENTS Continuing operations $ 175 $ 175 $ — $ — Discontinued operations — — — — Short-Term Investments $ 175 $ 175 $ — $ — MONEY MARKET ACCOUNTS Continuing operations $ 6,147 $ 6,147 $ — $ — Discontinued operations 10,677 10,677 — — Money Market Accounts $ 16,824 $ 16,824 $ — $ — CORPORATE-OWNED LIFE INSURANCE Continuing operations $ 4,029 $ — $ 4,029 $ — Discontinued operations — — — — Corporate-Owned Life Insurance $ 4,029 $ — $ 4,029 $ — Total Assets Measured at Fair Value $ 3,313,962 $ 329,671 $ 2,974,417 $ 9,874 The fair value of securities that are categorized as Level 1 is based on quoted market prices that are readily and regularly available. We use a market-based approach for valuing all of our Level 2 securities and submit them primarily to a third-party valuation service provider. Any of these securities not valued by this service provider are submitted to another third-party valuation service provider. Both service providers use a market approach to find pricing of similar financial instruments. The market inputs our service providers normally seek to value our securities include the following, listed in approximate order of priority: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data including market research publications. The method and inputs for these securities classified as Level 2 are the same regardless of industry category, credit quality, duration, geographical concentration or economic characteristics. For our mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, our service providers use additional market inputs to value these securities, including the following: new issue data, periodic payment information, monthly payment information, collateral performance and real estate analysis from third parties. Our service providers prioritize inputs based on market conditions, and not all inputs listed are available for use in the valuation process for each security on any given day. At least annually, we review the methodologies and assumptions used by our valuation service providers and verify that they are reasonable and representative of the fair value of the underlying securities held in the investment portfolio. We validate the prices obtained from independent pricing services and brokers prior to their use for reporting purposes by evaluating their reasonableness on a monthly basis. Our validation process includes a review for unusual fluctuations. Unusual fluctuations outside of our expectations are independently corroborated with additional third-party sources that use similar valuation techniques as discussed above. In addition, we also randomly select securities and independently corroborate the valuations obtained from our third-party valuation service providers. In our opinion, the pricing obtained at September 30, 2018 and December 31, 2017 was reasonable. For the three- and nine-month periods ended September 30, 2018 , the change in our available-for-sale securities categorized as Level 1 and Level 2 is the result of investment purchases that were made using funds held in our money market accounts, disposals and the change in unrealized gains on both fixed maturities and equity securities. During the three- and nine-month periods ended September 30, 2018 , there were no securities transferred between Level 1 and Level 2. Securities categorized as Level 3 include holdings in certain private placement fixed maturity and equity securities for which an active market does not currently exist. The fair value of our Level 3 private placement securities is determined by management relying on pricing received from our independent pricing services and brokers consistent with the process to estimate fair value for Level 2 securities. However, securities are categorized as Level 3 if these quotes cannot be corroborated by other market observable data due to the unobservable nature of the brokers’ valuation processes. If pricing cannot be obtained from these sources, which occurs on a limited basis, management will perform a discounted cash flow analysis, using an appropriate risk-adjusted discount rate, on the underlying security to estimate fair value. During the three- and nine-month periods ended September 30, 2018 , there were no securities transferred in or out of Level 3. The following table provides a summary of the changes in fair value of our Level 3 securities from continuing operations for the three-month period ended September 30, 2018 : Corporate bonds Asset-backed securities Equities Total Balance at June 30, 2018 $ 100 $ 639 $ 669 $ 1,408 Net unrealized gains (losses) (1) 150 (7 ) (74 ) 69 Balance at September 30, 2018 $ 250 $ 632 $ 595 $ 1,477 (1) Net unrealized gains (losses) are recorded as a component of comprehensive income. The following table provides a summary of the changes in fair value of our Level 3 securities from continuing operations for the nine-month period ended September 30, 2018 : Corporate bonds Asset-backed securities Equities Total Balance at January 1, 2018 $ 100 $ 647 $ 882 $ 1,629 Net unrealized gains (losses) (1) 150 (15 ) (287 ) (152 ) Balance at September 30, 2018 $ 250 $ 632 $ 595 $ 1,477 (1) Net unrealized losses are recorded as a component of comprehensive income. Commercial Mortgage Loans The following tables present the carrying value of our commercial mortgage loans and additional information at September 30, 2018 and December 31, 2017 : Commercial Mortgage Loans September 30, 2018 December 31, 2017 Loan-to-value Carrying Value Carrying Value Less than 65% $ 14,896 — Total commercial mortgage loans $ 14,896 $ — Mortgage Loans by Region September 30, 2018 December 31, 2017 Carrying Value Percent of Total Carrying Value Percent of Total East North Central $ 3,245 21.8 % $ — — % Southern Atlantic 6,651 44.7 — — East South Central 5,000 33.5 — — Total mortgage loans $ 14,896 100.0 % $ — — % Mortgage Loans by Property Type September 30, 2018 December 31, 2017 Carrying Value Percent of Total Carrying Value Percent of Total Commercial Multifamily $ 3,245 21.8 % $ — — % Office 11,651 78.2 — — Total mortgage loans $ 14,896 100.0 % $ — — % The commercial mortgage loans originate with an initial loan-to-value ratio to provide sufficient collateral to absorb losses should a loan be required to foreclose. Mortgage loans are evaluated on a quarterly basis for impairment on an individual basis through a monitoring process and review of key credit indicators, such as economic trends, delinquency rates, property valuations, occupancy and rental rates and loan-to-value ratios. A loan is considered impaired when the Company believes it will not collect the contractual principal and interest set forth in the contractual terms of the loan. A valuation allowance is established on each loan recognizing a loss for amounts which we believe will not be collected according to the contractual terms of the respective loan agreement. As of September 30, 2018

Reserves for Losses and Loss Se

Reserves for Losses and Loss Settlement Expenses	9 Months Ended
	Sep. 30, 2018
Insurance Loss Reserves [Abstract]
Reserves for Losses and Loss Settlement Expenses	RESERVES FOR LOSSES AND LOSS SETTLEMENT EXPENSES Property insurance indemnifies an insured with an interest in physical property for loss of, or damage to, such property or the loss of its income-producing abilities. Casualty insurance primarily covers liability for damage to property of, or injury to, a person or entity other than the insured. In most cases, casualty insurance also obligates the insurance company to provide a defense for the insured in litigation, arising out of events covered by the policy. Liabilities for losses and loss settlement expenses reflect management's best estimates at a given point in time of what we expect to pay for claims that have been reported and those that have been incurred but not reported ("IBNR"), based on known facts, circumstances, and historical trends. Because property and casualty insurance reserves are estimates of the unpaid portions of incurred losses that have been reported to us, as well as losses that have been incurred but not reported, the establishment of appropriate reserves, including reserves for catastrophes, is an inherently uncertain and complex process. The ultimate cost of losses and related loss settlement expenses may vary materially from recorded amounts. We regularly update our reserve estimates as new information becomes available and as events unfold that may affect the resolution of unsettled claims. Changes in prior year reserve estimates, which may be material, are reported as a component of losses and loss settlement expenses incurred in the period such changes are determined. The determination of reserves (particularly those relating to liability lines of insurance that have relatively longer lag in claim reporting) requires significant work to reasonably project expected future claim reporting and payment patterns. If, during the course of our regular monitoring of reserves, we determine that coverages previously written are incurring higher than expected losses, we will take action that may include, among other things, increasing the related reserves. Any adjustments we make to reserves are reflected in operating results in the year in which we make those adjustments. We engage an independent actuary, Regnier Consulting Group, Inc., to render an opinion as to the reasonableness of our statutory reserves annually. The actuarial opinion is filed in those states where we are licensed. On a quarterly basis, UFG's internal actuary performs a detailed actuarial review of IBNR reserves. This review includes a comparison of results from the most recent analysis of reserves completed by both our internal and external actuaries. Senior management meets with our internal actuary to review, on a regular and quarterly basis, the adequacy of carried reserves based on results from this actuarial analysis. There are two fundamental types or sources of IBNR reserves. We record IBNR reserves for "normal" types of claims and also specific IBNR reserves related to unique circumstances or events. A major hurricane is an example of an event that might necessitate establishing specific IBNR reserves because an analysis of existing historical data would not provide an appropriate estimate. We do not discount loss reserves based on the time value of money. The following table provides an analysis of changes in our property and casualty losses and loss settlement expense reserves at September 30, 2018 and December 31, 2017 (net of reinsurance amounts): September 30, 2018 December 31, 2017 Gross liability for losses and loss settlement expenses $ 1,224,183 $ 1,123,896 Ceded losses and loss settlement expenses (59,871 ) (59,794 ) Net liability for losses and loss settlement expenses $ 1,164,312 $ 1,064,102 Losses and loss settlement expenses incurred Current year $ 575,214 $ 779,966 Prior years (47,673 ) (54,253 ) Total incurred $ 527,541 $ 725,713 Losses and loss settlement expense payments Current year $ 212,138 $ 311,972 Prior years 263,552 313,531 Total paid $ 475,690 $ 625,503 Net liability for losses and loss settlement expenses $ 1,216,163 $ 1,164,312 Ceded loss and loss settlement expenses 61,914 59,871 Gross liability for losses and loss settlement expenses $ 1,278,077 $ 1,224,183 There are a multitude of factors that can impact loss reserve development. Those factors include, but are not limited to: historical data, the potential impact of various loss reserve development factors and trends including historical loss experience, legislative enactments, judicial decisions, legal developments in imposition of damages, experience with alternative dispute resolution, results of our medical bill review process, the potential impact of salvage and subrogation and changes and trends in general economic conditions, including the effects of inflation. All of these factors influence our estimates of required reserves and for long tail lines these factors can change over the course of the settlement of the claim. However, there is no precise method for evaluating the specific monetary impact of any individual factor on the development of reserves. For the three-month period ended September 30, 2018 the majority of unfavorable development came from two lines, commercial liability and commercial automobile with a partial offset coming from favorable development for the three lines of reinsurance assumed, workers compensation and fidelity and surety. All other lines combined contributed a relatively minimal amount of overall unfavorable development during this three-month period. The unfavorable development for the quarter is attributable to the combination of latent emergence of commercial automobile claims that increased sufficiently to also generate an umbrella liability claim combined with a very large but independent general liability claim. For the nine-month period ended September 30, 2018 the majority of favorable development came from four lines: workers compensation, commercial automobile, commercial liability, and reinsurance assumed. Each of the other individual lines also contributed favorable development during this nine-month period (none were unfavorable). The significant drivers of the favorable reserve development in 2017 were our commercial liability and workers compensation lines of business. Much of the favorable commercial other liability development came from loss adjustment expense and is attributed to our continued litigation management efforts combined with some favorable development coming from decreases in reserves, which were more than sufficient to pay claims as they closed. Workers compensation favorable development was due to the combined effects of decreases in claim reserves along with favorable changes affecting loss adjustment expense. Our personal lines also contributed favorable development. The lines that experienced adverse development during the year, which partially offset the favorable development mentioned earlier, were assumed reinsurance and commercial automobile. The adverse development for assumed reinsurance is due to increases in prior year reserves for unpaid claims while the adverse development for commercial automobile is due to paid losses which were greater than reductions in reported loss reserves and reserves for claims incurred but not reported. No other single line of business contributed a significant portion of the total development. Generally, we base reserves for each claim on the estimated ultimate exposure for that claim. We believe that it is appropriate and reasonable to establish a best estimate for reserves within a range of reasonable estimates, especially when we are reserving for claims for bodily injury, disabilities and similar claims, for which settlements and verdicts can vary widely. Our reserving philosophy may result in favorable reserve development in future years that will decrease losses and loss settlement expenses for prior year claims in the year of adjustment. We realize that this philosophy, coupled with what we believe to be aggressive and successful claims management and loss settlement practices, has resulted in year-to-year redundancies in reserves. We believe our approach produces recorded reserves that are reasonably consistent as to their relative position within a range of reasonable reserves from year-to-year. However, conditions and trends that have affected the reserve development for a given year do change. Therefore, such development cannot be used to project future reserve redundancies or deficiencies.

Employee Benefits

Employee Benefits	9 Months Ended
	Sep. 30, 2018
Retirement Benefits [Abstract]
Employee Benefits	EMPLOYEE BENEFITS Net Periodic Benefit Cost The components of the net periodic benefit cost for our pension and postretirement benefit plans are as follows: Pension Plan Postretirement Benefit Plan Three Months Ended September 30, 2018 2017 2018 2017 Net periodic benefit cost Service cost $ 2,175 $ 1,714 $ 750 $ 505 Interest cost 1,875 1,765 502 482 Expected return on plan assets (2,626 ) (2,413 ) — — Amortization of prior service credit — — (1,352 ) (1,352 ) Amortization of net loss 1,072 891 589 462 Net periodic benefit cost $ 2,496 $ 1,957 $ 489 $ 97 Pension Plan Postretirement Benefit Plan Nine Months Ended September 30, 2018 2017 2018 2017 Net periodic benefit cost Service cost $ 6,525 $ 5,141 $ 2,249 $ 1,515 Interest cost 5,625 5,295 1,506 1,446 Expected return on plan assets (7,877 ) (7,237 ) — — Amortization of prior service credit — — (4,056 ) (4,056 ) Amortization of net loss 3,215 2,673 1,767 1,384 Net periodic benefit cost $ 7,488 $ 5,872 $ 1,466 $ 289 Employer Contributions We previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2017 that we expected to contribute $6,400 to the pension plan in 2018 . For the nine-month period ended September 30, 2018 , we contributed $16,400 to the pension plan. In September 2018, the Company contributed an additional $10,000

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2018
Share-based Compensation [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION Non-Qualified Employee Stock Award Plan The United Fire Group, Inc. 2008 Stock Plan (the "2008 Stock Plan") authorized the issuance of restricted and unrestricted stock awards, restricted stock units, stock appreciation rights, incentive stock options, and non-qualified stock options for up to 1,900,000 shares of UFG common stock to employees. In May 2014, the Registrant's shareholders approved an additional 1,500,000 shares of UFG common stock issuable at any time and from time to time pursuant to the 2008 Stock Plan, among other amendments, and renamed such plan as the United Fire Group, Inc. Stock Plan (as amended, the "Stock Plan"). At September 30, 2018 , there were 879,913 authorized shares remaining available for future issuance. The Stock Plan is administered by the Board of Directors, which determines those employees who will receive awards, when awards will be granted, and the terms and conditions of the awards. The Board of Directors may also take any action it deems necessary and appropriate for the administration of the Stock Plan. Pursuant to the Stock Plan, the Board of Directors may, at its sole discretion, grant awards to our employees who are in positions of substantial responsibility with UFG. Options granted pursuant to the Stock Plan are granted to buy shares of UFG's common stock at the market value of the stock on the date of grant. All outstanding option awards have graded vesting over 3 years or 5 years from the grant date, unless the Board of Directors authorizes acceleration of vesting. Performance stock units cliff-vest after 3 years and the certification of performance results by UFG’s Compensation Committee. To the extent not exercised, vested option awards accumulate and are exercisable by the awardee, in whole or in part, in any subsequent year included in the option period, but not later than 10 years from the grant date. Restricted and unrestricted stock awards granted pursuant to the Stock Plan are granted at the market value of UFG's common stock on the date of the grant. Restricted stock units fully vest after 3 years or 5 years from the date of issuance, unless accelerated upon the approval of the Board of Directors, at which time UFG common stock will be issued to the awardee. The activity in the Stock Plan is displayed in the following table: Authorized Shares Available for Future Award Grants Nine Months Ended September 30, 2018 From Inception to September 30, 2018 Beginning balance 996,828 1,900,000 Additional shares authorized — 1,500,000 Number of awards granted (157,188 ) (3,029,159 ) Number of awards forfeited or expired 40,273 509,072 Ending balance 879,913 879,913 Number of option awards exercised 211,789 1,297,684 Number of unrestricted stock awards granted 8,470 Number of restricted stock awards vested 19,658 57,826 Non-Qualified Non-Employee Director Stock Option and Restricted Stock Plan The United Fire Group, Inc. 2005 Non-Qualified Non-Employee Director Stock Option and Restricted Stock Plan (the "Director Plan") authorizes the issuance of restricted stock awards and non-qualified stock options to purchase shares of UFG's common stock to non-employee directors. At September 30, 2018 , we had 49,163 authorized shares available for future issuance. The Board of Directors has the authority to determine which non-employee directors receive awards, when options and restricted stock shall be granted, the option price, the option expiration date, the date of grant, the vesting schedule of options or whether the options shall be immediately vested, the terms and conditions of options and restricted stock (other than those terms and conditions set forth in the plan) and the number of shares of common stock to be issued pursuant to an option agreement or restricted stock agreement (subject to limits set forth in the plan). The Board of Directors may also take any action it deems necessary and appropriate for the administration of the Director Plan. The activity in the Director Plan is displayed in the following table: Authorized Shares Available for Future Award Grants Nine Months Ended September 30, 2018 From Inception to September 30, 2018 Beginning balance 61,813 300,000 Number of awards granted (12,650 ) (274,840 ) Number of awards forfeited or expired 24,003 Ending balance 49,163 49,163 Number of option awards exercised 24,953 114,234 Number of restricted stock awards vested 17,269 71,541 Stock-Based Compensation Expense For the three-month periods ended September 30, 2018 and 2017 , we recognized stock-based compensation expense of $1,320 and $1,202 , respectively. For the nine-month periods ended September 30, 2018 and 2017 , we recognized stock-based compensation expense of $4,040 and $3,456 , respectively. Stock-based compensation expense is recognized over the vesting period of the stock options. As of September 30, 2018 , we had $8,287 in stock-based compensation expense that has yet to be recognized through our results of operations. We expect this compensation to be recognized over the remainder of 2018 and subsequent years according to the table below, except with respect to awards that are accelerated by the Board of Directors, in which case we will recognize any remaining compensation expense in the period in which the awards are accelerated. 2018 $ 1,318 2019 4,032 2020 2,355 2021 544 2022 38 Total $ 8,287

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2018
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION On September 19, 2017, the Company announced that it had agreed to sell its subsidiary, United Life, to Kuvare. The sale closed on March 30, 2018. As a result, the life insurance business has been considered held for sale and reported as discontinued operations in the Consolidated Financial Statements and all comparable prior periods have been presented to conform to the current period presentation. For more information, refer to Note 11. Discontinued Operations. Prior to the announcement to sell United Life, we had two reportable business segments in our operations: property and casualty insurance and life insurance. The property and casualty insurance business has six domestic locations from which it conducts its business. The life insurance segment operated from our home office in Cedar Rapids, Iowa. Because all of our insurance is sold domestically, we have no revenues from foreign operations. After the announcement of the United Life transaction, our continuing operations, the property and casualty insurance business, was reported as one reportable segment. The property and casualty insurance business profit or loss is consistent with consolidated reporting as disclosed on the Consolidated Statements of Income and Comprehensive Income. We analyze the property and casualty insurance business results based on profitability (i.e., loss ratios), expenses and return on equity. The Company's property and casualty insurance business was determined using a management approach to make decisions on operating matters, including allocating resources, assessing performance, determining which products to market and sell, determining distribution networks with insurance agents and monitoring the regulatory environment. The property and casualty insurance business products have similar economic characteristics and use a similar marketing and distribution strategy with our independent agents. The property and casualty insurance business geographic concentration did not change after the announcement of

Earnings Per Common Share

Earnings Per Common Share	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Common Share	EARNINGS PER COMMON SHARE Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. Diluted earnings per share gives effect to all dilutive common shares outstanding during the reporting period. The dilutive shares we consider in our diluted earnings per share calculation relate to our outstanding stock options, restricted stock awards and restricted stock unit awards. We determine the dilutive effect of our outstanding stock options using the "treasury stock" method. Under this method, we assume the exercise of all of the outstanding stock options whose exercise price is less than the weighted-average market value of our common stock during the reporting period. This method also assumes that the proceeds from the hypothetical stock option exercises are used to repurchase shares of our common stock at the weighted-average market value of the stock during the reporting period. The net of the assumed stock options exercised and assumed common shares repurchased represents the number of dilutive common shares, which we add to the denominator of the earnings per share calculation. The components of basic and diluted earnings per share were as follows for the three-month periods ended September 30, 2018 and 2017 : Three Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 Basic Diluted Basic Diluted Net income (loss) from continuing operations $ 11,070 $ 11,070 $ (19,082 ) $ (19,082 ) Weighted-average common shares outstanding 25,052,627 25,052,627 24,960,086 24,960,086 Add dilutive effect of restricted stock unit awards — 279,636 — — Add dilutive effect of stock options — 294,688 — — Weighted-average common shares outstanding 25,052,627 25,626,951 24,960,086 24,960,086 Earnings (loss) per common share from continuing operations $ 0.44 $ 0.43 $ (0.77 ) $ (0.77 ) Earnings per common share from discontinued operations — — 0.05 0.05 Earnings (loss) per common share $ 0.44 $ 0.43 $ (0.72 ) $ (0.72 ) Awards excluded from diluted earnings per share calculation (1) — — — — (1) Outstanding awards that are not "in-the-money" are excluded from the diluted earnings per share calculation because the effect of including them would have been anti-dilutive. The components of basic and diluted earnings per share were as follows for the nine-month periods ended September 30, 2018 and 2017 : Nine Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 Basic Diluted Basic Diluted Net income (loss) from continuing operations $ 31,591 $ 31,591 $ (389 ) $ (389 ) Weighted-average common shares outstanding 24,982,155 24,982,155 25,177,133 25,177,133 Add dilutive effect of restricted stock unit awards — 279,636 — 253,082 Add dilutive effect of stock options — 345,514 — 236,190 Weighted-average common shares outstanding 24,982,155 25,607,305 25,177,133 25,666,405 Earnings (loss) per common share from continuing operations $ 1.26 $ 1.23 $ (0.01 ) $ (0.01 ) Earnings per common share from discontinued operations (0.08 ) (0.07 ) 0.21 0.21 Gain on sale of discontinued operations, net of taxes 1.10 1.07 — — Earnings per common share $ 2.28 $ 2.23 $ 0.20 $ 0.20 Awards excluded from diluted earnings per share calculation (1) — 2,681 — — (1)

Credit Facility

Credit Facility	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Credit Facility	CREDIT FACILITY On February 2, 2016, the Company, as borrower, entered into a Credit Agreement (the "Credit Agreement") by and among the Company, with the lenders from time to time party thereto and KeyBank National Association ("Key Bank"), as administrative agent, swingline lender and letter of credit issuer. The Credit Agreement provides for a $50,000 four -year unsecured revolving credit facility that includes a $20,000 letter of credit subfacility and a swingline subfacility in the amount up to $5,000 . The Credit Agreement allows the Company to increase the aggregate amount of the commitments thereunder by up to $100,000 , provided that no event of default has occurred and is continuing and certain other conditions are satisfied. The Credit Agreement is available for the Company's general corporate purposes, including liquidity, acquisitions and working capital. All unpaid principal and accrued interest under the Credit Agreement is due and payable in full at maturity on February 2, 2020. Based on the type of loan, advances under the Credit Agreement would bear interest on either the London interbank offered rate ("LIBOR") or a base rate plus, in each case, a calculated margin amount. The unused commitments under the Credit Agreement will be subject to a commitment fee that will be calculated at a per annum rate. The applicable margins for borrowings under the Credit Agreement and the commitment fee thereunder will be determined by reference to a pricing grid based on the Company’s issuer credit rating by A.M. Best Company, Inc. The Credit Agreement contains customary representations, conditions to borrowing, covenants and events of default, including certain covenants that limit or restrict, subject to certain exceptions, the ability of the Company and its subsidiaries to sell or transfer assets, enter into a merger or consolidate with another company, create liens, impose restrictions on subsidiary dividends, enter into sale-leaseback transactions, make investments or acquisitions, enter into certain reinsurance agreements, pay dividends during any period of default, enter into transactions with affiliates, change the nature of its business, or incur indebtedness. The Credit Agreement also includes financial covenants that require the Company to (i) maintain a minimum consolidated net worth, (ii) maintain a minimum consolidated statutory surplus and (iii) not exceed a 0.35 to 1.0 debt to total capitalization ratio. There was no outstanding balance on the Credit Agreement at September 30, 2018 and 2017 , respectively. For the nine-month periods ended September 30, 2018 and 2017 , we did no t incur any interest expense related to either credit facility. We were in compliance with all covenants of the Credit Agreement at September 30, 2018

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table shows the changes in the components of our accumulated other comprehensive income (loss), net of tax, for the three-month period ended September 30, 2018 : Liability for Net unrealized underfunded appreciation employee on investments benefit costs (1) Total Balance as of June 30, 2018 $ (15,370 ) $ (43,928 ) $ (59,298 ) Change in accumulated other comprehensive income before reclassifications (12,157 ) — (12,157 ) Reclassification adjustments from accumulated other comprehensive income (loss) 392 1,312 1,704 Balance as of September 30, 2018 $ (27,135 ) $ (42,616 ) $ (69,751 ) (1) The preparation of financial statements in conformity with GAAP requires us to make various estimates and assumptions that affect the reporting of net periodic benefit cost, plan assets and plan obligations for each plan at the date of the financial statements. Actual results could differ from these estimates. One significant estimate relates to the calculation of the benefit obligation for each plan. We annually establish the discount rate, which is an estimate of the interest rate at which these benefits could be effectively settled, that is used to determine the present value of the respective plan's benefit obligations as of December 31. The following table shows the changes in the components of our accumulated other comprehensive income (loss), net of tax, for the nine-month period ended September 30, 2018 : Liability for Net unrealized underfunded appreciation employee on investments benefit costs (1) Total Balance as of January 1, 2018 $ 214,865 $ (46,551 ) $ 168,314 Cumulative effect of change in accounting principle (191,244 ) — (191,244 ) Change in accumulated other comprehensive income before reclassifications (51,274 ) — (51,274 ) Reclassification adjustments from accumulated other comprehensive income (loss) 518 3,935 4,453 Balance as of September 30, 2018 $ (27,135 ) $ (42,616 ) $ (69,751 )

Discontinued Operations

Discontinued Operations	9 Months Ended
	Sep. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS On September 18, 2017, we signed a definitive agreement to sell our subsidiary, United Life, to Kuvare for $280,000 in cash, less a $21 adjustment as set forth in the definitive agreement, for a net amount of $279,979 . The sale closed on March 30, 2018 and we reported an after-tax gain on the sale of discontinued operations of $27,307 . The life insurance business (previously reported as a separate segment) was considered held for sale and reported as discontinued operations and its financial position, results of operations and cash flows were reported separately for all periods presented, as applicable, unless otherwise noted. UFG has agreed to provide services to Kuvare through a transition services agreement ("TSA"). The TSA ensures a seamless transfer of the business between UFG and Kuvare. The TSA includes, among other considerations, accounting management, human resources, legal and information technology services, from the closing date for up to 24 months . Since the close date, the Company has received $317 as part of the TSA agreement. The assets and liabilities associated with discontinued operations prior to the closing of the sale have been presented separately in our Consolidated Balance Sheets. The major assets and liability categories were as follows as of the dates indicated: Discontinued Operations Balance Sheets (In Thousands, Except Share Data) September 30, December 31, (unaudited) Assets Investments Fixed maturities Held-to-maturity, at amortized cost (fair value $0 in 2018 and $34 in 2017) $ — $ 34 Available-for-sale, at fair value (amortized cost $0 in 2018 and $1,412,291 in 2017) — 1,430,025 Equity Securities at fair value (cost $0 in 2018 and $5,099 in 2017) — 23,653 Mortgage loans — 3,435 Policy loans — 5,815 Other long-term investments — 16,437 — 1,479,399 Cash and cash equivalents — 15,851 Deferred policy acquisition costs — 71,151 Other assets — 19,733 Total assets held for sale $ — $ 1,586,134 Liabilities Future policy benefits and losses $ — $ 1,320,401 Deferred income taxes — 18,716 Accrued expenses and other liabilities — 8,018 Total liabilities held for sale $ — $ 1,347,135 Note: The sale of the life insurance business was completed on March 30, 2018. Summary operating results of discontinued operations were as follows for the periods indicated: Discontinued Operations Statements of Income (Unaudited) Three Months Ended September 30, Nine Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 2018 2017 Revenues Net premiums earned $ — $ 14,230 $ 13,003 $ 45,999 Investment income, net of investment expenses — 12,354 12,663 37,230 Net realized investment gains (losses) — 296 (1,057 ) 3,600 Other income — 174 146 498 Total revenues $ — $ 27,054 $ 24,755 $ 87,327 Benefits, Losses and Expenses Losses and loss settlement expenses $ — $ 10,506 $ 10,823 $ 30,679 Increase in liability for future policy benefits — 5,481 5,023 19,341 Amortization of deferred policy acquisition costs — 2,156 1,895 5,524 Other underwriting expenses — 2,444 3,864 9,452 Interest on policyholders’ accounts — 4,587 4,499 13,982 Total benefits, losses and expenses $ — $ 25,174 $ 26,104 $ 78,978 Income (loss) from discontinued operations before income taxes $ — $ 1,880 $ (1,349 ) $ 8,349 Federal income tax expense — 662 563 2,930 Net income (loss) from discontinued operations $ — $ 1,218 $ (1,912 ) $ 5,419 Earnings (loss) per common share from discontinued operations: Basic $ — $ 0.05 $ (0.08 ) $ 0.21 Diluted — 0.05 (0.07 ) 0.21 Note: The sale of the life insurance business was completed on March 30, 2018.

Nature of Operations and Basi_2

Nature of Operations and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Discontinued Operations	Discontinued Operations We have historically reported our operations in two business segments: property and casualty insurance and life insurance. On September 18, 2017, the Company signed a definitive agreement to sell its subsidiary, United Life Insurance Company ("United Life"), to Kuvare US Holdings, Inc. ("Kuvare") and on March 30, 2018, the sale closed. As a result, the life insurance business, previously a separate segment, was considered held for sale and reported as discontinued operations in the Consolidated Balance Sheets, Consolidated Statements of Income and Comprehensive Income and Consolidated Statements of Cash Flows for all periods presented in this Form 10-Q (collectively, the "Consolidated Financial Statements"). Subsequent to the announcement of this sale, our continuing operations were reported as one
Basis of Presentation	Basis of PresentationThe unaudited consolidated interim financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial reporting and with the instructions to Form 10-Q and Regulation S-X promulgated by the SEC. Certain financial information that is included in our Annual Report on Form 10-K for the year ended December 31, 2017, including certain financial statement footnote disclosures, is not required by the rules and regulations of the SEC for interim financial reporting and have been condensed or omitted.
Use of Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The financial statement categories that are most dependent on management estimates and assumptions include: investments; deferred policy acquisition costs; reinsurance receivables and recoverables; future policy benefits and losses, and loss settlement expenses; and pension and postretirement benefit obligations.
Reclassification	Certain prior year amounts have been reclassified to conform to the current year presentation.
Cash and Cash Equivalents	Cash and Cash Equivalents
Deferred Policy Acquisition Costs (DAC)	Deferred Policy Acquisition Costs ("DAC") Certain costs associated with underwriting new business (primarily commissions, premium taxes and variable underwriting and policy issue expenses associated with successful acquisition efforts) are deferred. The following table is a summary of the components of DAC, including the related amortization recognized for the nine-month period ended September 30, 2018 . Continuing Operations Discontinued Operations Property & Casualty Insurance Life Insurance Total Recorded asset at beginning of period $ 88,102 $ 71,151 $ 159,253 Underwriting costs deferred 159,245 1,376 160,621 Amortization of deferred policy acquisition costs (152,207 ) (1,895 ) (154,102 ) Ending unamortized deferred policy acquisition costs $ 95,140 $ 70,632 $ 165,772 Impact of unrealized gains and losses on available-for-sale securities — 7,274 7,274 Sale of discontinued operations — (77,906 ) (77,906 ) Recorded asset at September 30, 2018 $ 95,140 $ — $ 95,140 Property and casualty insurance policy acquisition costs deferred are amortized as premium revenue is recognized. The method followed in computing DAC limits the amount of such deferred costs to their estimated realizable value. This takes into account the premium to be earned, losses and loss settlement expenses expected to be incurred and certain other costs expected to be incurred as the premium is earned. For traditional life insurance policies, DAC is amortized to income over the premium-paying period in proportion to the ratio of the expected annual premium revenue to the expected total premium revenue. Expected premium revenue and gross profits are based on the same mortality and withdrawal assumptions used in determining future policy benefits. These assumptions are not revised after policy issuance unless the recorded DAC asset is deemed to be unrecoverable from future expected profits. For non-traditional life insurance policies, DAC is amortized over the anticipated terms in proportion to the ratio of the expected annual gross profits to the total expected gross profits. Changes in the amount or timing of expected gross profits result in adjustments to the cumulative amortization of these costs. The effect on amortization of DAC for revisions to estimated gross profits is reported in earnings in the period the estimated gross profits are revised.
Income Taxes	Income Taxes The Tax Cuts and Jobs Act of 2017 (the "Tax Act") was enacted on December 22, 2017. The Tax Act significantly revised the U.S. corporate income tax laws including lowering the U.S. federal corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118, which addresses how a company recognizes provisional amounts when a company does not have the necessary information available, prepared or analyzed in reasonable detail to complete its accounting for the effect of the changes in the Tax Act. The measurement period ends when a company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. As of September 30, 2018 we had not completed accounting for the tax effects of enactment of the Tax Act, however for certain items, we have made a reasonable estimate of the effects on our deferred tax balances. For other items where we could not make a reasonable estimate, we are still using existing accounting guidance and the provisions of the tax laws that were in place prior to the enactment. The Company will continue to refine this estimated provisional adjustment as we gain a more thorough understanding of the effects of enactment of the Tax Act on the Company, and the Company will take future guidance into consideration when it becomes available. Deferred tax assets and liabilities are established based on differences between the financial statement bases of assets and liabilities and the tax bases of those same assets and liabilities, using the currently enacted statutory tax rates. Deferred income tax expense is measured by the year-to-year change in the net deferred tax asset or liability, except for certain changes in deferred tax amounts that affect stockholders' equity and do not impact federal income tax expense. We reported consolidated federal income tax expense from consolidated continuing operations and discontinued operations of $1,528 and $8,878 for the three- and nine-month periods ended September 30, 2018 , respectively, compared to income tax benefit of $12,650 and $10,400 during the same periods of 2017. Our effective tax rate is different than the federal statutory rate of 21 percent , due principally to the effect of tax-exempt municipal bond interest income and non-taxable dividend income. The Company performs a quarterly review of its tax positions and makes a determination of whether it is more likely than not that the tax position will be sustained upon examination. If, based on review, it appears not more likely than not that the positions will be sustained, the Company will calculate any unrecognized tax benefits and, if necessary, calculate and accrue any related interest and penalties. We did no t recognize any liability for unrecognized tax benefits at September 30, 2018 or December 31, 2017 . In addition, we have not accrued for interest and penalties related to unrecognized tax benefits. However, if interest and penalties would need to be accrued related to unrecognized tax benefits, such amounts would be recognized as a component of federal income tax expense. With regard to the sale of the life insurance subsidiary, federal income taxes were allocated to continuing and discontinued operations in accordance with the Company’s tax allocation agreement and the terms of the definitive agreement related to the sale. We file a consolidated federal income tax return. We also file income tax returns in various state jurisdictions. We are no longer subject to federal or state income tax examination for years before 2015.
Subsequent Events	Subsequent Events
Recently Issued Accounting Standards	Recently Issued Accounting Standards Accounting Standards Adopted in 2018 Revenue Recognition In May 2014, the FASB issued comprehensive new guidance on revenue recognition which supersedes nearly all existing revenue recognition guidance under GAAP. The new guidance requires a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard creates a five-step model that requires companies to exercise judgment when considering the terms of the contract(s) and all relevant facts and circumstances. Insurance contracts are not within the scope of this new guidance. The new guidance is effective for annual and interim periods beginning after December 15, 2017. The Company adopted the guidance as of January 1, 2018. The adoption of the new guidance had no impact on the Company's reporting and disclosure of net premiums earned from insurance contracts, net investment income or net realized gains and losses, as these revenue streams are not within the scope of this new guidance. The remaining revenue streams are immaterial and not impacted by the new standard. Financial Instruments In January 2016, the FASB issued guidance updating certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments in this update supersede the guidance to classify equity securities with readily determinable fair values into different categories (for example, trading or available-for-sale) and require equity securities to be measured at fair value with changes in the fair value recognized through net income. The new guidance also simplifies the impairment process for equity investments without readily determinable fair values. The new guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption of the new guidance resulted in a reclassification from accumulated other comprehensive income to retained earnings of $191,244 after tax, which is equal to the amount of net unrealized gains and losses on available-for-sale equity securities on January 1, 2018. Also, in the three- and nine-month periods ended September 30, 2018, the Company recognized an after-tax net realized investment gain from continuing operations of $11,361 and $4,343 , respectively, in net income from the change in value of equity securities due to the adoption of this new accounting guidance. Statement of Cash Flows - Classification of Certain Cash Receipts and Payments In August 2016, the FASB issued an update that clarifies the classification of certain cash receipts and payments in the Statement of Cash Flows. The update addresses eight existing cash flow issues by clarifying the correct classification to establish uniformity in practice. The updated guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption had no impact on the Company's financial position and results of operations. Defined Benefit Retirement Plan Cost In March 2017, the FASB issued guidance on the presentation of net periodic benefit costs of defined benefit retirement benefit plans in the Statements of Income. The new guidance requires the service cost component of net periodic benefit cost of defined benefit plans to be presented in the same line in the Statements of Income as other employee compensation expenses. Also, under the new guidance, the service cost component of the net periodic benefit costs will be the only portion of costs subject to be capitalized in assets. The new guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those years. The Company adopted the new guidance as of January 1, 2018. The adoption of the new guidance resulted in a change in the capitalization of deferred acquisition costs to only include the pension and post retirement service costs in place of the total net periodic benefit costs. The adoption had an immaterial impact on the Company's financial position and results of operations. Additionally, the adoption did not impact the Company's presentation in the Statements of Income as all net periodic benefit costs and employee compensation expenses are included within the same category in the Statements of Income. Share-Based Payments In May 2017, the FASB issued new guidance which clarifies and addresses the diversity in practice when there is a change in the terms of a share-based payment award. The updated guidance clarifies when to use modification accounting when there is a change in the terms of a share-based payment and provides three conditions where modification accounting should not be applied. The new guidance is effective for annual and interim periods beginning after December 15, 2017. The Company adopted the new guidance as of January 1, 2018. The adoption had no impact on the Company's financial position and results of operations. Pending Adoption of Accounting Standards Intangibles - Other Internal Use Software In August 2018, the FASB issued guidance to align the requirements for capitalizing implementation costs incurred in a cloud computing hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance requires the Company to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020. Management currently believes that the adoption will not have an impact on the Company's financial position or results of operations. Leases In February 2016, the FASB issued guidance on the accounting for leases. The new guidance requires lessees to place a right-of-use asset and a lease liability on their balance sheets. The lease liability will be based on the present value of the future lease payments and the right-of-use asset will be based on the liability. Expenses will be recognized on the income statement in a similar manner as previous methods. The new guidance also requires companies to classify all leases as operating leases or financing leases. We believe all of our leases will be classified as operating leases. The new guidance is effective for annual periods beginning after December 15, 2018 and interim periods within those years. The Company will adopt the new guidance under a modified retrospective transition approach using the package of practical expedients and the Company will not adopt the hindsight practical expedient as of January 1, 2019. We expect to use the accounting standard adoption date as our date of initial application. The Company has created an inventory of its operating leases and has calculated the total undiscounted future minimum lease payments, which are disclosed in Note 13 Lease Commitments of the Company's Annual Report on Form 10-K for the year ended December 31, 2017. The undiscounted future minimum lease payments at December 31, 2017 are $22.5 million , which represents less than 1.0 percent of the Company's total assets at December 31, 2017. The Company plans to use their incremental borrowing rate of their credit facility described in Note 9 Credit Facility of this Form 10-Q, as the discount rate for calculating the minimum lease payments. For leases that exist prior to the date of initial application, the Company has elected to use the remaining lease term as of the date of initial application to measure its incremental borrowing rate. The Company has reviewed and updated its processes and controls under the new guidance. Management currently believes that the adoption will not have a significant impact on the Company's financial position or results of operations. Financial Instruments - Credit Losses In June 2016, the FASB issued new guidance on the measurement of credit losses for most financial instruments. The new guidance replaces the current incurred loss model for recognizing credit losses with an expected loss model for instruments measured at amortized cost and requires allowances to be recorded for available-for-sale debt securities rather than reduce the carrying amount. These allowances will be remeasured each reporting period. The new guidance is effective for annual periods beginning after December 15, 2019 and interim periods within those years. The new guidance will impact the Company's portfolio of mortgage loan investments which are carried at amortized cost and are impairment model related to our available-for-sale portfolio. The Company will adopt the new guidance as of January 1, 2020 and is currently evaluating the impact on the Company's financial position, results of operations and key processes. Income Taxes - Intra-entity Transfers In October 2016, the FASB issued new guidance on the income tax treatment of intra-entity transfers. The new guidance replaces the current guidance which prohibits the recognition of current and deferred income taxes of intra-entity transfers until the asset is sold externally. Under the new guidance, the exemption is eliminated and income taxes will be recognized on transfers of intra-entity assets. The new guidance is effective for annual periods beginning after December 15, 2018 and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2019. Management currently believes that the adoption will not have a significant impact on the Company's financial position and results of operations. Goodwill In January 2017, the FASB issued new guidance which simplifies the test for goodwill impairment. The new guidance eliminates the implied fair value calculation when measuring a goodwill impairment charge. Under the new guidance, impairment charges will be based on the excess of the carrying value over fair value of goodwill. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020 and it currently believes the adoption will have no impact on the Company's financial position and results of operations. Financial Instruments - Disclosures In August 2018, the FASB issued new guidance which modifies the disclosure requirements on fair value measurements of financial instruments. The new guidance removes the requirement for disclosing the amount and reason for transfers between Level 1 and Level 2 investment securities and the valuation processes for Level 3 fair value measurements. The guidance also requires additional disclosures on the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The new guidance is effective for annual and interim periods beginning after December 15, 2019. The Company will adopt the new guidance as of January 1, 2020. The new guidance will modify existing fair value disclosures, but will not have an impact on the Company's financial position and results of operations. Defined Benefit Plans - Disclosures
Fair Value Measurement	Current accounting guidance on fair value measurements includes the application of a fair value hierarchy that requires us to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Our financial instruments that are recorded at fair value are categorized into a three-level hierarchy, which is based upon the priority of the inputs to the valuation technique. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets (i.e., Level 1) and the lowest priority to unobservable inputs (i.e., Level 3). If the inputs used to measure fair value fall within different levels of the hierarchy, the category level is based on the lowest priority level input that is significant to the fair value measurement of the financial instrument. Financial instruments recorded at fair value are categorized in the fair value hierarchy as follows: • Level 1 : Valuations are based on unadjusted quoted prices in active markets for identical financial instruments that we have the ability to access. • Level 2 : Valuations are based on quoted prices for similar financial instruments, other than quoted prices included in Level 1, in markets that are not active or on inputs that are observable either directly or indirectly for the full term of the financial instrument. • Level 3 : Valuations are based on pricing or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement of the financial instrument. Such inputs may reflect management's own assumptions about the assumptions a market participant would use in pricing the financial instrument. We review our fair value hierarchy categorizations on a quarterly basis at which time the classification of certain financial instruments may change if the input observations have changed. Transfers between levels, if any, are recorded as of the beginning of the reporting period. To determine the fair value of the majority of our investments, we utilize prices obtained from independent, nationally recognized pricing services. We obtain one price for each security. When the pricing services cannot provide a determination of fair value for a specific security, we obtain non-binding price quotes from broker-dealers with whom we have had several years' experience and who have demonstrated knowledge of the subject security. We request and utilize one broker quote per security. In order to determine the proper classification in the fair value hierarchy for each security where the price is obtained from an independent pricing service, we obtain and evaluate the vendors' pricing procedures and inputs used to price the security, which include unadjusted quoted market prices for identical securities, such as a New York Stock Exchange closing price, and quoted prices for identical securities in markets that are not active. For fixed maturity securities, an evaluation of interest rates and yield curves observable at commonly quoted intervals, volatility, prepayment speeds, credit risks and default rates may also be performed. We have determined that these processes and inputs result in fair values and classifications consistent with the applicable accounting guidance on fair value measurements. When possible, we use quoted market prices to determine the fair value of fixed maturities, equity securities, trading securities and short-term investments. When quoted market prices do not exist, we base estimates of fair value on market information obtained from independent pricing services and brokers or on valuation techniques that are both unobservable and significant to the overall fair value measurement of the financial instrument. Such inputs may reflect management's own assumptions about the assumptions a market participant would use in pricing the financial instrument. Our valuation techniques are discussed in more detail throughout this section. The mortgage loan portfolio consists entirely of commercial mortgage loans. The fair value of our mortgage loans is determined by modeling performed by our third party fund manager based on the stated principal and coupon payments provided for in the loan agreements. These cash flows are then discounted using an appropriate risk-adjusted discount rate to determine the security's fair value. The fair value of our policy loans is equivalent to carrying value, which is a reasonable estimate of fair value and is classified as Level 2. We do not make policy loans for amounts in excess of the cash surrender value of the related policy. In all instances, the policy loans are fully collateralized by the related liability for future policy benefits for traditional insurance policies or by the policyholders' account balance for non-traditional policies. Our other long-term investments consist primarily of our interests in limited liability partnerships that are recorded on the equity method of accounting. The fair value of the partnerships is obtained from the fund managers, which is based on the fair value of the underlying investments held in the partnerships. In management's opinion, these values represent a reasonable estimate of fair value. We have not adjusted the net asset value provided by the fund managers. For cash and cash equivalents and accrued investment income, carrying value is a reasonable estimate of fair value due to the short-term nature of these financial instruments. The Company formed a rabbi trust in 2014 to fund obligations under the United Fire & Casualty Company Supplemental Executive Retirement and Deferral Plan (the "Executive Retirement Plan"). Within the rabbi trust, corporate-owned life insurance ("COLI") policies are utilized as an investment vehicle and source of funding for the Company's Executive Retirement Plan. The COLI policies invest in mutual funds, which are priced daily by independent sources. As of September 30, 2018 , the cash surrender value of the COLI policies was $4,998 , which is equal to the fair value measured using Level 2 inputs, based on the underlying assets of the COLI policies, and is included in other assets in the Consolidated Balance Sheets. We use a market-based approach for valuing all of our Level 2 securities and submit them primarily to a third-party valuation service provider. Any of these securities not valued by this service provider are submitted to another third-party valuation service provider. Both service providers use a market approach to find pricing of similar financial instruments. The market inputs our service providers normally seek to value our securities include the following, listed in approximate order of priority: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data including market research publications. The method and inputs for these securities classified as Level 2 are the same regardless of industry category, credit quality, duration, geographical concentration or economic characteristics. For our mortgage-backed securities, collateralized mortgage obligations and asset-backed securities, our service providers use additional market inputs to value these securities, including the following: new issue data, periodic payment information, monthly payment information, collateral performance and real estate analysis from third parties. Our service providers prioritize inputs based on market conditions, and not all inputs listed are available for use in the valuation process for each security on any given day. At least annually, we review the methodologies and assumptions used by our valuation service providers and verify that they are reasonable and representative of the fair value of the underlying securities held in the investment portfolio. We validate the prices obtained from independent pricing services and brokers prior to their use for reporting purposes by evaluating their reasonableness on a monthly basis. Our validation process includes a review for unusual fluctuations. Unusual fluctuations outside of our expectations are independently corroborated with additional third-party sources that use similar valuation techniques as discussed above. In addition, we also randomly select securities and independently corroborate the valuations obtained from our third-party valuation service providers. In our opinion, the pricing obtained at September 30, 2018 and December 31, 2017 was reasonable. For the three- and nine-month periods ended September 30, 2018 , the change in our available-for-sale securities categorized as Level 1 and Level 2 is the result of investment purchases that were made using funds held in our money market accounts, disposals and the change in unrealized gains on both fixed maturities and equity securities. During the three- and nine-month periods ended September 30, 2018 , there were no securities transferred between Level 1 and Level 2. Securities categorized as Level 3 include holdings in certain private placement fixed maturity and equity securities for which an active market does not currently exist. The fair value of our Level 3 private placement securities is determined by management relying on pricing received from our independent pricing services and brokers consistent with the process to estimate fair value for Level 2 securities. However, securities are categorized as Level 3 if these quotes cannot be corroborated by other market observable data due to the unobservable nature of the brokers’ valuation processes. If pricing cannot be obtained from these sources, which occurs on a limited basis, management will perform a discounted cash flow analysis, using an appropriate risk-adjusted discount rate, on the underlying security to estimate fair value. During the three- and nine-month periods ended September 30, 2018 , there were no
Segment Information	Prior to the announcement to sell United Life, we had two reportable business segments in our operations: property and casualty insurance and life insurance. The property and casualty insurance business has six domestic locations from which it conducts its business. The life insurance segment operated from our home office in Cedar Rapids, Iowa. Because all of our insurance is sold domestically, we have no revenues from foreign operations. After the announcement of the United Life transaction, our continuing operations, the property and casualty insurance business, was reported as one reportable segment. The property and casualty insurance business profit or loss is consistent with consolidated reporting as disclosed on the Consolidated Statements of Income and Comprehensive Income. We analyze the property and casualty insurance business results based on profitability (i.e., loss ratios), expenses and return on equity. The Company's property and casualty insurance business was determined using a management approach to make decisions on operating matters, including allocating resources, assessing performance, determining which products to market and sell, determining distribution networks with insurance agents and monitoring the regulatory environment. The property and casualty insurance business products have similar economic characteristics and use a similar marketing and distribution strategy with our independent agents. The property and casualty insurance business geographic concentration did not change after the announcement of
Earnings Per Share	Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. Diluted earnings per share gives effect to all dilutive common shares outstanding during the reporting period. The dilutive shares we consider in our diluted earnings per share calculation relate to our outstanding stock options, restricted stock awards and restricted stock unit awards.We determine the dilutive effect of our outstanding stock options using the "treasury stock" method. Under this method, we assume the exercise of all of the outstanding stock options whose exercise price is less than the weighted-average market value of our common stock during the reporting period. This method also assumes that the proceeds from the hypothetical stock option exercises are used to repurchase shares of our common stock at the weighted-average market value of the stock during the reporting period. The net of the assumed stock options exercised and assumed common shares repurchased represents the number of dilutive common shares, which we add to the denominator of the earnings per share calculation.

Nature of Operations and Basi_3

Nature of Operations and Basis of Presentation (Tables)	9 Months Ended
	Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Components of Deferred Acquisition Costs	The following table is a summary of the components of DAC, including the related amortization recognized for the nine-month period ended September 30, 2018 . Continuing Operations Discontinued Operations Property & Casualty Insurance Life Insurance Total Recorded asset at beginning of period $ 88,102 $ 71,151 $ 159,253 Underwriting costs deferred 159,245 1,376 160,621 Amortization of deferred policy acquisition costs (152,207 ) (1,895 ) (154,102 ) Ending unamortized deferred policy acquisition costs $ 95,140 $ 70,632 $ 165,772 Impact of unrealized gains and losses on available-for-sale securities — 7,274 7,274 Sale of discontinued operations — (77,906 ) (77,906 ) Recorded asset at September 30, 2018 $ 95,140 $ — $ 95,140

Summary of Investments (Tables)

Summary of Investments (Tables)	9 Months Ended
	Sep. 30, 2018
Investments [Abstract]
Fair Value of Investments	A reconciliation of the amortized cost (cost for equity securities) to fair value of investments in held-to-maturity and available-for-sale fixed maturity and equity securities, presented on a consolidated basis, including both continuing and discontinued operations as of September 30, 2018 and December 31, 2017 , is as follows: September 30, 2018 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 27,195 $ — $ 354 $ 26,841 U.S. government agency 212,542 310 5,862 206,990 States, municipalities and political subdivisions General obligations: Midwest 99,023 574 1,359 98,238 Northeast 37,389 251 289 37,351 South 115,440 333 2,559 113,214 West 107,993 643 1,998 106,638 Special revenue: Midwest 140,245 817 1,735 139,327 Northeast 63,758 240 1,901 62,097 South 241,007 611 6,177 235,441 West 145,072 737 3,411 142,398 Foreign bonds 9,722 49 24 9,747 Public utilities 54,606 129 1,191 53,544 Corporate bonds Energy 26,929 77 320 26,686 Industrials 56,127 103 699 55,531 Consumer goods and services 52,398 42 763 51,677 Health care 18,062 58 134 17,986 Technology, media and telecommunications 26,622 34 534 26,122 Financial services 77,788 164 1,888 76,064 Mortgage-backed securities 7,985 13 260 7,738 Collateralized mortgage obligations Government national mortgage association 78,797 121 3,602 75,316 Federal home loan mortgage corporation 108,666 7 2,957 105,716 Federal national mortgage association 53,776 2 1,924 51,854 Asset-backed securities 3,238 318 41 3,515 Total Available-for-Sale Fixed Maturities $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 December 31, 2017 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value HELD-TO-MATURITY Fixed maturities: Bonds Corporate bonds - financial services $ 150 $ — $ — $ 150 Mortgage-backed securities 34 — — 34 Total Held-to-Maturity Fixed Maturities $ 184 $ — $ — $ 184 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 17,073 $ 4 $ 186 $ 16,891 U.S. government agency 121,574 1,311 717 122,168 States, municipalities and political subdivisions General obligations: Midwest 107,689 2,446 439 109,696 Northeast 47,477 1,174 10 48,641 South 139,870 2,462 813 141,519 West 111,123 2,351 463 113,011 Special revenue: Midwest 155,475 3,620 351 158,744 Northeast 79,028 1,351 619 79,760 South 260,145 5,218 1,851 263,512 West 156,576 2,929 1,198 158,307 Foreign bonds 51,361 1,441 49 52,753 Public utilities 206,028 3,386 270 209,144 Corporate bonds Energy 93,191 1,972 110 95,053 Industrials 218,067 3,881 241 221,707 Consumer goods and services 183,253 3,498 494 186,257 Health care 74,125 1,312 29 75,408 Technology, media and telecommunications 146,853 2,376 250 148,979 Financial services 277,824 5,769 442 283,151 Mortgage-backed securities 13,828 101 238 13,691 Collateralized mortgage obligations Government national mortgage association 157,836 1,921 2,274 157,483 Federal home loan mortgage corporation 201,320 1,879 4,047 199,152 Federal national mortgage association 104,903 1,703 1,174 105,432 Asset-backed securities 4,282 362 8 4,636 Total Available-for-Sale Fixed Maturities $ 2,928,901 $ 52,467 $ 16,273 $ 2,965,095 Equity securities: Common stocks Public utilities $ 6,394 $ 16,075 $ 30 $ 22,439 Energy 6,514 8,171 120 14,565 Industrials 13,117 53,522 120 66,519 Consumer goods and services 10,110 15,742 164 25,688 Health care 7,763 32,340 — 40,103 Technology, media and telecommunications 6,067 11,556 115 17,508 Financial services 11,529 104,985 67 116,447 Nonredeemable preferred stocks 992 305 — 1,297 Total Available-for-Sale Equity Securities $ 62,486 $ 242,696 $ 616 $ 304,566 Total Available-for-Sale Securities $ 2,991,387 $ 295,163 $ 16,889 $ 3,269,661 The following table is a reconciliation of the amortized cost (cost for equity securities) to fair value of investments in held-to-maturity and available-for-sale fixed maturity and equity securities for continuing and discontinued operations by investment type at September 30, 2018 and December 31, 2017 : September 30, 2018 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 Discontinued operations — — — — Total Available-for-Sale Fixed Maturities $ 1,764,380 $ 5,633 $ 39,982 $ 1,730,031 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Type of Investment Cost or Amortized Cost Gross Unrealized Appreciation Gross Unrealized Depreciation Fair Value HELD-TO-MATURITY Fixed maturities: Continuing operations $ 150 $ — $ — $ 150 Discontinued operations 34 — — 34 Total Held-to-Maturity Fixed Maturities $ 184 $ — $ — $ 184 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,516,610 $ 27,412 $ 8,952 $ 1,535,070 Discontinued operations 1,412,291 25,055 7,321 1,430,025 Total Available-for-Sale Fixed Maturities 2,928,901 52,467 16,273 2,965,095 Equity securities: Continuing operations $ 57,387 $ 224,065 $ 539 $ 280,913 Discontinued operations 5,099 18,631 77 23,653 Total Available-for-Sale Equity Securities 62,486 242,696 616 304,566 Total Available-for-Sale Securities $ 2,991,387 $ 295,163 $ 16,889 $ 3,269,661
Maturities	The amortized cost and fair value of held-to-maturity, available-for-sale and trading fixed maturity securities at September 30, 2018 , by contractual maturity, are shown in the following tables. The table below includes investments from continuing operations. Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Asset-backed securities, mortgage-backed securities and collateralized mortgage obligations may be subject to prepayment risk and are therefore not categorized by contractual maturity. Maturities Available-For-Sale Trading September 30, 2018 Amortized Cost Fair Value Amortized Cost Fair Value Due in one year or less $ 48,539 $ 48,703 $ 3,347 $ 3,431 Due after one year through five years 212,322 211,709 6,835 8,797 Due after five years through 10 years 518,809 513,464 — — Due after 10 years 732,248 712,016 1,865 2,171 Asset-backed securities 3,238 3,515 — — Mortgage-backed securities 7,985 7,738 — — Collateralized mortgage obligations 241,239 232,886 — — $ 1,764,380 $ 1,730,031 $ 12,047 $ 14,399
Net Realized Investment Gains and Losses	A summary of the components of net realized investment gains (losses) is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Net realized investment gains (losses) from continuing operations: Fixed maturities: Available-for-sale $ 22 $ 118 $ (171 ) $ 645 Trading securities Change in fair value 351 (43 ) 92 504 Sales 171 72 1,076 117 Equity securities 13,944 (80 ) 6,924 1,842 Real estate (517 ) — (517 ) 289 Total net realized investment gains from continuing operations $ 13,971 $ 67 $ 7,404 $ 3,397 Total net realized investment gains (losses) from discontinued operations — 296 (1,057 ) 3,600 Total net realized investment gains $ 13,971 $ 363 $ 6,347 $ 6,997
Proceeds and Gross Realized Gains and Losses	The proceeds and gross realized gains on the sale of available-for-sale fixed maturity securities from continuing operations are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Proceeds from sales $ 105,871 $ 2,293 $ 129,865 $ 3,388 Gross realized gains — — 140 1,046 Gross realized losses (94 ) — (401 ) — The proceeds and gross realized gains on the sale of available-for-sale fixed maturity securities from discontinued operations are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Proceeds from sales $ — $ 1,844 $ — $ 5,807 Gross realized gains — — — 1,254 Gross realized losses — — — (78 )
Unrealized Investment Appreciation	A summary of the changes in net unrealized investment appreciation during the reporting period is as follows: Nine Months Ended September 30, 2018 2017 Change in net unrealized investment appreciation Available-for-sale fixed maturities $ (80,023 ) $ 34,837 Available-for-sale equity securities — 27,559 Deferred policy acquisition costs 7,274 (3,582 ) Income tax effect 15,279 (20,584 ) Net unrealized investment depreciation of discontinued operations, sold 6,714 — Cumulative change in accounting principles (191,244 ) — Total change in net unrealized investment appreciation, net of tax $ (242,000 ) $ 38,230
Investments in Unrealized Loss Position	September 30, 2018 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury 5 $ 18,989 $ 107 5 $ 7,852 $ 247 $ 26,841 $ 354 U.S. government agency 34 158,156 4,096 7 34,516 1,766 192,672 5,862 States, municipalities and political subdivisions General obligations Midwest 17 26,098 234 5 21,109 1,125 47,207 1,359 Northeast 5 14,211 152 1 3,500 137 17,711 289 South 23 46,353 700 12 29,344 1,859 75,697 2,559 West 21 47,340 680 8 24,676 1,318 72,016 1,998 Special revenue Midwest 31 56,940 672 8 20,569 1,063 77,509 1,735 Northeast 7 18,451 336 11 27,327 1,565 45,778 1,901 South 40 102,910 1,578 32 70,521 4,599 173,431 6,177 West 19 37,030 573 23 52,433 2,838 89,463 3,411 Foreign bonds 1 2,973 24 — — — 2,973 24 Public utilities 19 39,011 916 1 4,860 275 43,871 1,191 Corporate bonds Energy 10 17,219 320 — — — 17,219 320 Industrials 16 39,427 513 1 3,860 186 43,287 699 Consumer goods and services 18 40,446 737 1 974 26 41,420 763 Health care 5 11,515 134 — — — 11,515 134 Technology, media and telecommunications 9 20,569 406 1 1,833 128 22,402 534 Financial services 24 54,884 1,445 2 6,154 443 61,038 1,888 Mortgage-backed securities 32 2,355 55 13 3,602 205 5,957 260 Collateralized mortgage obligations Government national mortgage association 11 27,027 856 18 39,403 2,746 66,430 3,602 Federal home loan mortgage corporation 21 77,751 967 11 27,390 1,990 105,141 2,957 Federal national mortgage association 16 29,346 684 8 22,072 1,240 51,418 1,924 Asset-backed securities 1 2,882 41 — — — 2,882 41 Total Available-for-Sale Fixed Maturities 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 December 31, 2017 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Depreciation Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury 5 $ 10,370 $ 67 2 $ 5,765 $ 119 $ 16,135 $ 186 U.S. government agency 11 64,842 390 5 19,372 327 84,214 717 States, municipalities and political subdivisions General obligations Midwest 2 2,177 8 3 19,729 431 21,906 439 Northeast — — — 1 3,644 10 3,644 10 South 3 7,959 32 11 29,545 781 37,504 813 West 2 5,944 18 8 25,755 445 31,699 463 Special revenue Midwest 2 3,486 15 7 19,130 336 22,616 351 Northeast 1 4,471 37 11 28,476 582 32,947 619 South 8 7,749 107 27 69,917 1,744 77,666 1,851 West 3 5,424 16 22 56,753 1,182 62,177 1,198 Foreign bonds 1 857 49 — — — 857 49 Public utilities 8 19,186 79 5 8,446 191 27,632 270 Corporate bonds Energy 1 2,236 13 1 1,606 97 3,842 110 Industrials 10 27,773 146 2 4,275 95 32,048 241 Consumer goods and services 14 32,781 248 3 6,813 246 39,594 494 Health care 4 9,947 29 — — — 9,947 29 Technology, media and telecommunications 12 35,319 122 3 10,413 128 45,732 250 Financial services 22 50,144 256 4 11,389 186 61,533 442 Mortgage-backed securities 10 2,458 18 10 6,641 220 9,099 238 Collateralized mortgage obligations Government national mortgage association 20 49,764 629 17 46,969 1,645 96,733 2,274 Federal home loan mortgage corporation 11 37,543 577 20 75,679 3,470 113,222 4,047 Federal national mortgage association 11 31,958 342 11 20,123 832 52,081 1,174 Asset-backed securities 1 992 8 — — — 992 8 Total Available-for-Sale Fixed Maturities 162 $ 413,380 $ 3,206 173 $ 470,440 $ 13,067 $ 883,820 $ 16,273 Equity securities: Common stocks Public utilities — $ — $ — 1 $ 278 $ 30 $ 278 $ 30 Energy 2 528 120 — — — 528 120 Industrials 1 99 13 5 193 107 292 120 Consumer goods and services — — — 2 151 164 151 164 Technology, media and telecommunications 2 466 95 1 4 20 470 115 Financial services 2 193 55 1 9 12 202 67 Total Available-for-Sale Equity Securities 7 $ 1,286 $ 283 10 $ 635 $ 333 $ 1,921 $ 616 Total Available-for-Sale Securities 169 $ 414,666 $ 3,489 183 $ 471,075 $ 13,400 $ 885,741 $ 16,889 The tables on the following pages are a reconciliation for continuing and discontinued operations of our total fixed maturity and equity securities that were in an unrealized loss position at September 30, 2018 and December 31, 2017 . The sale of our life insurance business was completed on March 30, 2018. The securities are presented by the length of time they have been continuously in an unrealized loss position: September 30, 2018 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Continuing operations 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 Discontinued operations — — — — — — — — Total Available-for-Sale Fixed Maturities 385 $ 891,883 $ 16,226 168 $ 401,995 $ 23,756 $ 1,293,878 $ 39,982 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Less than 12 months 12 months or longer Total Type of Investment Number Fair Gross Unrealized Number Fair Gross Unrealized Depreciation Fair Gross Unrealized Depreciation AVAILABLE-FOR-SALE Fixed maturities: Continuing operations 88 $ 232,489 $ 1,791 112 $ 302,815 $ 7,161 $ 535,304 $ 8,952 Discontinued operations 74 180,891 1,415 61 167,625 5,906 348,516 7,321 Total Available-for-Sale Fixed Maturities 162 $ 413,380 $ 3,206 173 $ 470,440 $ 13,067 $ 883,820 $ 16,273 Equity securities: Continuing operations 5 $ 1,129 $ 236 6 $ 385 $ 303 $ 1,514 $ 539 Discontinued operations 2 157 47 4 250 30 407 77 Total Available-for-Sale Equity Securities 7 $ 1,286 $ 283 10 $ 635 $ 333 $ 1,921 $ 616 Total Available-for-Sale Securities 169 $ 414,666 $ 3,489 183 $ 471,075 $ 13,400 $ 885,741 $ 16,889

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Carrying Value and Estimated Fair Value of Financial Instruments	A summary of the carrying value and estimated fair value of our financial instruments from continuing operations at September 30, 2018 and December 31, 2017 is as follows: September 30, 2018 December 31, 2017 Fair Value Carrying Value Fair Value Carrying Value Assets Investments Fixed maturities: Held-to-maturity securities $ — $ — $ 150 $ 150 Available-for-sale securities 1,730,031 1,730,031 1,535,070 1,535,070 Trading securities 14,399 14,399 16,842 16,842 Equity securities 276,253 276,253 287,344 287,344 Mortgage loans 14,749 14,896 — — Other long-term investments 40,432 40,432 49,352 49,352 Short-term investments 175 175 175 175 Cash and cash equivalents 52,252 52,252 95,562 95,562 Corporate-owned life insurance 4,998 4,998 4,029 4,029 A summary of the carrying value and estimated fair value of our financial instruments from discontinued operations at September 30, 2018 and December 31, 2017 is as follows: September 30, 2018 December 31, 2017 Fair Value Carrying Value Fair Value Carrying Value Assets Investments Fixed maturities: Held-to-maturity securities $ — $ — $ 34 $ 34 Available-for-sale securities — — 1,430,025 1,430,025 Equity securities: Available-for-sale securities — — 23,653 23,653 Mortgage loans — — 3,594 3,435 Policy loans — — 5,815 5,815 Other long-term investments — — 16,437 16,437 Cash and cash equivalents — — 15,851 15,851 Liabilities Policy reserves Annuity (accumulations) $ — $ — $ 591,702 $ 611,866 Annuity (benefit payments) — — 147,038 93,560
Financial Instruments Measured at Fair Value on Recurring Basis	The following tables present the categorization for our financial instruments measured at fair value on a recurring basis. The table includes financial instruments from both continuing and discontinued operations at September 30, 2018 and December 31, 2017 : September 30, 2018 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 26,841 $ — $ 26,841 $ — U.S. government agency 206,990 — 206,990 — States, municipalities and political subdivisions General obligations Midwest 98,238 — 98,238 — Northeast 37,351 — 37,351 — South 113,214 — 113,214 — West 106,638 — 106,638 — Special revenue Midwest 139,327 — 139,327 — Northeast 62,097 — 62,097 — South 235,441 — 235,441 — West 142,398 — 142,398 — Foreign bonds 9,747 — 9,747 — Public utilities 53,544 — 53,544 — Corporate bonds Energy 26,686 — 26,686 — Industrials 55,531 — 55,531 — Consumer goods and services 51,677 — 51,677 — Health care 17,986 — 17,986 — Technology, media and telecommunications 26,122 — 26,122 — Financial services 76,064 — 75,814 250 Mortgage-backed securities 7,738 — 7,738 — Collateralized mortgage obligations Government national mortgage association 75,316 — 75,316 — Federal home loan mortgage corporation 105,716 — 105,716 — Federal national mortgage association 51,854 — 51,854 — Asset-backed securities 3,515 — 2,883 632 Total Available-for-Sale Fixed Maturities $ 1,730,031 $ — $ 1,729,149 $ 882 TRADING Fixed maturities: Bonds U.S. Treasury $ 200 $ — $ 200 $ — Corporate bonds — — — Industrials 1,812 — 1,812 $ — Consumer goods and services 1,750 — 1,750 — Health care 3,182 — 3,182 — Technology, media and telecommunications 2,694 — 2,694 — Financial services 2,114 — 2,114 — Redeemable preferred stocks 2,647 2,647 — — Total Trading Securities $ 14,399 $ 2,647 $ 11,752 $ — EQUITY SECURITIES Common stocks Public utilities $ 15,563 $ 15,563 $ — $ — Energy 13,647 13,647 — — Industrials 62,741 62,741 — — Consumer goods and services 25,870 25,870 — — Health care 22,991 22,991 — — Technology, media and telecommunications 15,047 15,047 — — Financial services 114,708 114,708 — — Nonredeemable preferred stocks 5,686 5,091 — 595 Total Equity Securities $ 276,253 $ 275,658 $ — $ 595 Short-Term Investments $ 175 $ 175 $ — $ — Money Market Accounts $ 3,824 $ 3,824 $ — $ — Corporate-Owned Life Insurance $ 4,998 $ — $ 4,998 $ — Total Assets Measured at Fair Value $ 2,029,680 $ 282,304 $ 1,745,899 $ 1,477 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Bonds U.S. Treasury $ 16,891 $ — $ 16,891 $ — U.S. government agency 122,168 — 122,168 — States, municipalities and political subdivisions General obligations Midwest 109,696 — 109,696 — Northeast 48,641 — 48,641 — South 141,519 — 141,519 — West 113,011 — 113,011 — Special revenue Midwest 158,744 — 158,744 — Northeast 79,760 — 79,760 — South 263,512 — 263,512 — West 158,307 — 158,307 — Foreign bonds 52,753 — 52,753 — Public utilities 209,144 — 209,144 — Corporate bonds Energy 95,053 — 95,053 — Industrials 221,707 — 221,707 — Consumer goods and services 186,257 — 185,589 668 Health care 75,408 — 75,408 — Technology, media and telecommunications 148,979 — 148,979 — Financial services 283,151 — 275,474 7,677 Mortgage-backed securities 13,691 — 13,691 — Collateralized mortgage obligations Government national mortgage association 157,483 — 157,483 — Federal home loan mortgage corporation 199,152 — 199,152 — Federal national mortgage association 105,432 — 105,432 — Asset-backed securities 4,636 — 3,989 647 Total Available-for-Sale Fixed Maturities $ 2,965,095 $ — $ 2,956,103 $ 8,992 Equity securities: Common stocks Public utilities $ 22,439 $ 22,439 $ — $ — Energy 14,565 14,565 — — Industrials 66,519 66,517 2 — Consumer goods and services 25,688 25,688 — — Health care 40,103 40,103 — — Technology, media and telecommunications 17,508 17,508 — — Financial services 116,447 116,447 — — Nonredeemable preferred stocks 1,297 415 — 882 Total Available-for-Sale Equity Securities $ 304,566 $ 303,682 $ 2 $ 882 Total Available-for-Sale Securities $ 3,269,661 $ 303,682 $ 2,956,105 $ 9,874 TRADING Fixed maturities: Bonds Corporate bonds Industrials $ 2,220 $ — $ 2,220 $ — Consumer goods and services 1,535 — 1,535 — Health care 3,741 — 3,741 — Technology, media and telecommunications 1,221 — 1,221 — Financial services 5,566 — 5,566 — Redeemable preferred stocks 2,559 2,559 — — Equity securities: Public utilities 874 874 — — Energy 190 190 — — Industrials 989 989 — — Consumer goods and services 1,314 1,314 — — Health care 325 325 — — Financial services 198 198 — — Nonredeemable preferred stocks 2,541 2,541 — — Total Trading Securities $ 23,273 $ 8,990 $ 14,283 $ — Short-Term Investments $ 175 $ 175 $ — $ — Money Market Accounts $ 16,824 $ 16,824 $ — $ — Corporate-Owned Life Insurance $ 4,029 $ — $ 4,029 $ — Total Assets Measured at Fair Value $ 3,313,962 $ 329,671 $ 2,974,417 $ 9,874 The following tables are a reconciliation for both continuing and discontinued operations of the presentation of the categorization for our financial instruments measured at fair value on a recurring basis at September 30, 2018 and December 31, 2017 : September 30, 2018 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,730,031 $ 1,729,149 $ 882 Discontinued operations — — — — Total Available-for-Sale Fixed Maturities $ 1,730,031 $ — $ 1,729,149 $ 882 TRADING Fixed maturities: Continuing operations $ 14,399 $ 2,647 $ 11,752 $ — Discontinued operations — — — — Total Trading Securities $ 14,399 $ 2,647 $ 11,752 $ — EQUITY SECURITIES Continuing operations $ 276,253 $ 275,658 $ — $ 595 Discontinued operations — — — — Total Equity Securities $ 276,253 $ 275,658 $ — $ 595 SHORT-TERM INVESTMENTS Continuing operations $ 175 $ 175 Discontinued operations — — — $ — Short-Term Investments $ 175 $ 175 $ — $ — MONEY MARKET ACCOUNTS Continuing operations $ 3,824 $ 3,824 Discontinued operations — — — — Money Market Accounts $ 3,824 $ 3,824 $ — $ — CORPORATE-OWNED LIFE INSURANCE Continuing operations $ 4,998 $ 4,998 Discontinued operations — — — — Corporate-Owned Life Insurance $ 4,998 $ — $ 4,998 $ — Total Assets Measured at Fair Value $ 2,029,680 $ 282,304 $ 1,745,899 $ 1,477 Note: The sale of the life insurance business was completed on March 30, 2018. December 31, 2017 Fair Value Measurements Description Total Level 1 Level 2 Level 3 AVAILABLE-FOR-SALE Fixed maturities: Continuing operations $ 1,535,070 $ — $ 1,534,323 $ 747 Discontinued operations 1,430,025 — 1,421,780 8,245 Total Available-for-Sale Fixed Maturities $ 2,965,095 $ — $ 2,956,103 $ 8,992 Equity securities: Continuing operations $ 280,913 $ 280,031 $ — $ 882 Discontinued operations 23,653 23,651 2 — Total Equity Securities $ 304,566 $ 303,682 $ 2 $ 882 Total Available-for-Sale Securities $ 3,269,661 $ 303,682 $ 2,956,105 $ 9,874 TRADING Fixed maturities: Continuing operations $ 16,842 $ 2,559 $ 14,283 $ — Discontinued operations — — — — Equity securities: Continuing operations 6,431 6,431 — — Discontinued operations — — — — Total Trading Securities $ 23,273 $ 8,990 $ 14,283 $ — SHORT-TERM INVESTMENTS Continuing operations $ 175 $ 175 $ — $ — Discontinued operations — — — — Short-Term Investments $ 175 $ 175 $ — $ — MONEY MARKET ACCOUNTS Continuing operations $ 6,147 $ 6,147 $ — $ — Discontinued operations 10,677 10,677 — — Money Market Accounts $ 16,824 $ 16,824 $ — $ — CORPORATE-OWNED LIFE INSURANCE Continuing operations $ 4,029 $ — $ 4,029 $ — Discontinued operations — — — — Corporate-Owned Life Insurance $ 4,029 $ — $ 4,029 $ — Total Assets Measured at Fair Value $ 3,313,962 $ 329,671 $ 2,974,417 $ 9,874
Changes in Fair Value of Level 3 Securities	The following table provides a summary of the changes in fair value of our Level 3 securities from continuing operations for the three-month period ended September 30, 2018 : Corporate bonds Asset-backed securities Equities Total Balance at June 30, 2018 $ 100 $ 639 $ 669 $ 1,408 Net unrealized gains (losses) (1) 150 (7 ) (74 ) 69 Balance at September 30, 2018 $ 250 $ 632 $ 595 $ 1,477 (1) Net unrealized gains (losses) are recorded as a component of comprehensive income. The following table provides a summary of the changes in fair value of our Level 3 securities from continuing operations for the nine-month period ended September 30, 2018 : Corporate bonds Asset-backed securities Equities Total Balance at January 1, 2018 $ 100 $ 647 $ 882 $ 1,629 Net unrealized gains (losses) (1) 150 (15 ) (287 ) (152 ) Balance at September 30, 2018 $ 250 $ 632 $ 595 $ 1,477
Carrying Value of Commercial Mortgage Loans by Loan-to-Value Ratio	The following tables present the carrying value of our commercial mortgage loans and additional information at September 30, 2018 and December 31, 2017 : Commercial Mortgage Loans September 30, 2018 December 31, 2017 Loan-to-value Carrying Value Carrying Value Less than 65% $ 14,896 — Total commercial mortgage loans $ 14,896 $ —
Schedules of Concentration of Risk, by Risk Factor	Mortgage Loans by Region September 30, 2018 December 31, 2017 Carrying Value Percent of Total Carrying Value Percent of Total East North Central $ 3,245 21.8 % $ — — % Southern Atlantic 6,651 44.7 — — East South Central 5,000 33.5 — — Total mortgage loans $ 14,896 100.0 % $ — — % Mortgage Loans by Property Type September 30, 2018 December 31, 2017 Carrying Value Percent of Total Carrying Value Percent of Total Commercial Multifamily $ 3,245 21.8 % $ — — % Office 11,651 78.2 — — Total mortgage loans $ 14,896 100.0 % $ — — %

Reserves for Losses and Loss _2

Reserves for Losses and Loss Settlement Expenses (Tables)	9 Months Ended
	Sep. 30, 2018
Insurance Loss Reserves [Abstract]
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense	The following table provides an analysis of changes in our property and casualty losses and loss settlement expense reserves at September 30, 2018 and December 31, 2017 (net of reinsurance amounts): September 30, 2018 December 31, 2017 Gross liability for losses and loss settlement expenses $ 1,224,183 $ 1,123,896 Ceded losses and loss settlement expenses (59,871 ) (59,794 ) Net liability for losses and loss settlement expenses $ 1,164,312 $ 1,064,102 Losses and loss settlement expenses incurred Current year $ 575,214 $ 779,966 Prior years (47,673 ) (54,253 ) Total incurred $ 527,541 $ 725,713 Losses and loss settlement expense payments Current year $ 212,138 $ 311,972 Prior years 263,552 313,531 Total paid $ 475,690 $ 625,503 Net liability for losses and loss settlement expenses $ 1,216,163 $ 1,164,312 Ceded loss and loss settlement expenses 61,914 59,871 Gross liability for losses and loss settlement expenses $ 1,278,077 $ 1,224,183

Employee Benefits (Tables)

Employee Benefits (Tables)	9 Months Ended
	Sep. 30, 2018
Retirement Benefits [Abstract]
Net Periodic Benefit Cost	The components of the net periodic benefit cost for our pension and postretirement benefit plans are as follows: Pension Plan Postretirement Benefit Plan Three Months Ended September 30, 2018 2017 2018 2017 Net periodic benefit cost Service cost $ 2,175 $ 1,714 $ 750 $ 505 Interest cost 1,875 1,765 502 482 Expected return on plan assets (2,626 ) (2,413 ) — — Amortization of prior service credit — — (1,352 ) (1,352 ) Amortization of net loss 1,072 891 589 462 Net periodic benefit cost $ 2,496 $ 1,957 $ 489 $ 97 Pension Plan Postretirement Benefit Plan Nine Months Ended September 30, 2018 2017 2018 2017 Net periodic benefit cost Service cost $ 6,525 $ 5,141 $ 2,249 $ 1,515 Interest cost 5,625 5,295 1,506 1,446 Expected return on plan assets (7,877 ) (7,237 ) — — Amortization of prior service credit — — (4,056 ) (4,056 ) Amortization of net loss 3,215 2,673 1,767 1,384 Net periodic benefit cost $ 7,488 $ 5,872 $ 1,466 $ 289

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2018
Share-based Compensation [Abstract]
Activity in Stock Award Plans	The activity in the Director Plan is displayed in the following table: Authorized Shares Available for Future Award Grants Nine Months Ended September 30, 2018 From Inception to September 30, 2018 Beginning balance 61,813 300,000 Number of awards granted (12,650 ) (274,840 ) Number of awards forfeited or expired 24,003 Ending balance 49,163 49,163 Number of option awards exercised 24,953 114,234 Number of restricted stock awards vested 17,269 71,541 Authorized Shares Available for Future Award Grants Nine Months Ended September 30, 2018 From Inception to September 30, 2018 Beginning balance 996,828 1,900,000 Additional shares authorized — 1,500,000 Number of awards granted (157,188 ) (3,029,159 ) Number of awards forfeited or expired 40,273 509,072 Ending balance 879,913 879,913 Number of option awards exercised 211,789 1,297,684 Number of unrestricted stock awards granted 8,470 Number of restricted stock awards vested 19,658 57,826
Remaining Stock-Based Compensation Expense	We expect this compensation to be recognized over the remainder of 2018 and subsequent years according to the table below, except with respect to awards that are accelerated by the Board of Directors, in which case we will recognize any remaining compensation expense in the period in which the awards are accelerated. 2018 $ 1,318 2019 4,032 2020 2,355 2021 544 2022 38 Total $ 8,287

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2018
Earnings Per Share [Abstract]
Components of Basic and Diluted Earnings Per Share	The components of basic and diluted earnings per share were as follows for the three-month periods ended September 30, 2018 and 2017 : Three Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 Basic Diluted Basic Diluted Net income (loss) from continuing operations $ 11,070 $ 11,070 $ (19,082 ) $ (19,082 ) Weighted-average common shares outstanding 25,052,627 25,052,627 24,960,086 24,960,086 Add dilutive effect of restricted stock unit awards — 279,636 — — Add dilutive effect of stock options — 294,688 — — Weighted-average common shares outstanding 25,052,627 25,626,951 24,960,086 24,960,086 Earnings (loss) per common share from continuing operations $ 0.44 $ 0.43 $ (0.77 ) $ (0.77 ) Earnings per common share from discontinued operations — — 0.05 0.05 Earnings (loss) per common share $ 0.44 $ 0.43 $ (0.72 ) $ (0.72 ) Awards excluded from diluted earnings per share calculation (1) — — — — (1) Outstanding awards that are not "in-the-money" are excluded from the diluted earnings per share calculation because the effect of including them would have been anti-dilutive. The components of basic and diluted earnings per share were as follows for the nine-month periods ended September 30, 2018 and 2017 : Nine Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 Basic Diluted Basic Diluted Net income (loss) from continuing operations $ 31,591 $ 31,591 $ (389 ) $ (389 ) Weighted-average common shares outstanding 24,982,155 24,982,155 25,177,133 25,177,133 Add dilutive effect of restricted stock unit awards — 279,636 — 253,082 Add dilutive effect of stock options — 345,514 — 236,190 Weighted-average common shares outstanding 24,982,155 25,607,305 25,177,133 25,666,405 Earnings (loss) per common share from continuing operations $ 1.26 $ 1.23 $ (0.01 ) $ (0.01 ) Earnings per common share from discontinued operations (0.08 ) (0.07 ) 0.21 0.21 Gain on sale of discontinued operations, net of taxes 1.10 1.07 — — Earnings per common share $ 2.28 $ 2.23 $ 0.20 $ 0.20 Awards excluded from diluted earnings per share calculation (1) — 2,681 — — (1)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table shows the changes in the components of our accumulated other comprehensive income (loss), net of tax, for the three-month period ended September 30, 2018 : Liability for Net unrealized underfunded appreciation employee on investments benefit costs (1) Total Balance as of June 30, 2018 $ (15,370 ) $ (43,928 ) $ (59,298 ) Change in accumulated other comprehensive income before reclassifications (12,157 ) — (12,157 ) Reclassification adjustments from accumulated other comprehensive income (loss) 392 1,312 1,704 Balance as of September 30, 2018 $ (27,135 ) $ (42,616 ) $ (69,751 ) (1) The preparation of financial statements in conformity with GAAP requires us to make various estimates and assumptions that affect the reporting of net periodic benefit cost, plan assets and plan obligations for each plan at the date of the financial statements. Actual results could differ from these estimates. One significant estimate relates to the calculation of the benefit obligation for each plan. We annually establish the discount rate, which is an estimate of the interest rate at which these benefits could be effectively settled, that is used to determine the present value of the respective plan's benefit obligations as of December 31. The following table shows the changes in the components of our accumulated other comprehensive income (loss), net of tax, for the nine-month period ended September 30, 2018 : Liability for Net unrealized underfunded appreciation employee on investments benefit costs (1) Total Balance as of January 1, 2018 $ 214,865 $ (46,551 ) $ 168,314 Cumulative effect of change in accounting principle (191,244 ) — (191,244 ) Change in accumulated other comprehensive income before reclassifications (51,274 ) — (51,274 ) Reclassification adjustments from accumulated other comprehensive income (loss) 518 3,935 4,453 Balance as of September 30, 2018 $ (27,135 ) $ (42,616 ) $ (69,751 )

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	The major assets and liability categories were as follows as of the dates indicated: Discontinued Operations Balance Sheets (In Thousands, Except Share Data) September 30, December 31, (unaudited) Assets Investments Fixed maturities Held-to-maturity, at amortized cost (fair value $0 in 2018 and $34 in 2017) $ — $ 34 Available-for-sale, at fair value (amortized cost $0 in 2018 and $1,412,291 in 2017) — 1,430,025 Equity Securities at fair value (cost $0 in 2018 and $5,099 in 2017) — 23,653 Mortgage loans — 3,435 Policy loans — 5,815 Other long-term investments — 16,437 — 1,479,399 Cash and cash equivalents — 15,851 Deferred policy acquisition costs — 71,151 Other assets — 19,733 Total assets held for sale $ — $ 1,586,134 Liabilities Future policy benefits and losses $ — $ 1,320,401 Deferred income taxes — 18,716 Accrued expenses and other liabilities — 8,018 Total liabilities held for sale $ — $ 1,347,135 Note: The sale of the life insurance business was completed on March 30, 2018. Summary operating results of discontinued operations were as follows for the periods indicated: Discontinued Operations Statements of Income (Unaudited) Three Months Ended September 30, Nine Months Ended September 30, (In Thousands, Except Share Data) 2018 2017 2018 2017 Revenues Net premiums earned $ — $ 14,230 $ 13,003 $ 45,999 Investment income, net of investment expenses — 12,354 12,663 37,230 Net realized investment gains (losses) — 296 (1,057 ) 3,600 Other income — 174 146 498 Total revenues $ — $ 27,054 $ 24,755 $ 87,327 Benefits, Losses and Expenses Losses and loss settlement expenses $ — $ 10,506 $ 10,823 $ 30,679 Increase in liability for future policy benefits — 5,481 5,023 19,341 Amortization of deferred policy acquisition costs — 2,156 1,895 5,524 Other underwriting expenses — 2,444 3,864 9,452 Interest on policyholders’ accounts — 4,587 4,499 13,982 Total benefits, losses and expenses $ — $ 25,174 $ 26,104 $ 78,978 Income (loss) from discontinued operations before income taxes $ — $ 1,880 $ (1,349 ) $ 8,349 Federal income tax expense — 662 563 2,930 Net income (loss) from discontinued operations $ — $ 1,218 $ (1,912 ) $ 5,419 Earnings (loss) per common share from discontinued operations: Basic $ — $ 0.05 $ (0.08 ) $ 0.21 Diluted — 0.05 (0.07 ) 0.21 Note: The sale of the life insurance business was completed on March 30, 2018.

Nature of Operations and Basi_4

Nature of Operations and Basis of Presentation (Narrative) (Details)	Sep. 17, 2017segment	Sep. 30, 2018USD ($)state	Sep. 30, 2017USD ($)	Sep. 30, 2018USD ($)segmentstate	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Segment Reporting Information [Line Items]
Number of business segments | segment	2			1
Payment for income taxes				$ 24,055,000	$ 7,648,000
Federal tax refund received				1,503,000	10,000,000
Interest payments				0	0
Decrease in DAC asset related to assumed realization of unrealized gains (losses)		$ 0		0		$ 6,294,000
Federal income tax expense (benefit)		1,528,000	$ (13,312,000)	771,000	(13,330,000)
Liability for unrecognized tax benefits		0		0		0
Accumulated other comprehensive income (loss), net of tax		(69,751,000)		(69,751,000)		168,314,000
Retained earnings		$ 752,581,000		$ 752,581,000		608,700,000
Future minimum lease payments due						$ 22,500,000
Future minimum payments due as a percentage of total assets (less than)						1.00%
Property & Casualty Insurance
Segment Reporting Information [Line Items]
Number of states in which we are licensed as insurer | state		46		46
Continuing and Discontinuing Operations
Segment Reporting Information [Line Items]
Federal income tax expense (benefit)		$ 1,528,000	$ (12,650,000)	$ 8,878,000	$ (10,400,000)
Accounting Standards Update 2016-01
Segment Reporting Information [Line Items]
Accumulated other comprehensive income (loss), net of tax						$ (191,244,000)
Retained earnings						$ 191,244,000
Net realized investment gain		$ 11,361,000		$ 4,343,000

Nature of Operations and Basi_5

Nature of Operations and Basis of Presentation (Deferred Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of period	$ 88,102
Impact of unrealized gains and losses on available-for-sale securities	7,274	$ (3,582)
Recorded asset at end of period	95,140
Property & Casualty Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of period	88,102
Underwriting costs deferred	159,245
Amortization of deferred policy acquisition costs	(152,207)
Ending unamortized deferred policy acquisition costs	95,140
Impact of unrealized gains and losses on available-for-sale securities	0
Sale of discontinued operations	0
Recorded asset at end of period	95,140
Discontinued Operations | Life Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of period	71,151
Underwriting costs deferred	1,376
Amortization of deferred policy acquisition costs	(1,895)
Ending unamortized deferred policy acquisition costs	70,632
Impact of unrealized gains and losses on available-for-sale securities	7,274
Sale of discontinued operations	(77,906)
Recorded asset at end of period	0
Continuing and Discontinuing Operations
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Recorded asset at beginning of period	159,253
Underwriting costs deferred	160,621
Amortization of deferred policy acquisition costs	(154,102)
Ending unamortized deferred policy acquisition costs	165,772
Impact of unrealized gains and losses on available-for-sale securities	7,274
Sale of discontinued operations	(77,906)
Recorded asset at end of period	$ 95,140

Summary of Investments (Fair Va

Summary of Investments (Fair Value of Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
HELD-TO-MATURITY
Amortized Cost	$ 0	$ 150
Gross Unrealized Appreciation		0
Gross Unrealized Depreciation		0
Fair Value	0	150
Fixed maturities:
Amortized Cost	1,764,380	1,516,610
Gross Unrealized Appreciation	5,633	27,412
Gross Unrealized Depreciation	39,982	8,952
Fair Value	1,730,031	1,535,070
Equity securities:
Cost or Amortized Cost		57,387
Gross Unrealized Appreciation		224,065
Gross Unrealized Depreciation		539
Fair Value		280,913
Discontinued Operations
HELD-TO-MATURITY
Amortized Cost		34
Gross Unrealized Appreciation		0
Gross Unrealized Depreciation		0
Fair Value		34
Fixed maturities:
Amortized Cost	0	1,412,291
Gross Unrealized Appreciation	0	25,055
Gross Unrealized Depreciation	0	7,321
Fair Value	0	1,430,025
Equity securities:
Cost or Amortized Cost		5,099
Gross Unrealized Appreciation		18,631
Gross Unrealized Depreciation		77
Fair Value		23,653
Continuing and Discontinuing Operations
HELD-TO-MATURITY
Amortized Cost		184
Gross Unrealized Appreciation		0
Gross Unrealized Depreciation		0
Fair Value		184
Fixed maturities:
Amortized Cost	1,764,380	2,928,901
Gross Unrealized Appreciation	5,633	52,467
Gross Unrealized Depreciation	39,982	16,273
Fair Value	1,730,031	2,965,095
Equity securities:
Cost or Amortized Cost		62,486
Gross Unrealized Appreciation		242,696
Gross Unrealized Depreciation		616
Fair Value		304,566
Cost or Amortized Cost		2,991,387
Gross Unrealized Appreciation		295,163
Gross Unrealized Depreciation		16,889
Available-for-sale securities, fair value		3,269,661
Corporate bonds | Energy | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	26,929	93,191
Gross Unrealized Appreciation	77	1,972
Gross Unrealized Depreciation	320	110
Fair Value	26,686	95,053
Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	56,127	218,067
Gross Unrealized Appreciation	103	3,881
Gross Unrealized Depreciation	699	241
Fair Value	55,531	221,707
Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	52,398	183,253
Gross Unrealized Appreciation	42	3,498
Gross Unrealized Depreciation	763	494
Fair Value	51,677	186,257
Corporate bonds | Health care | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	18,062	74,125
Gross Unrealized Appreciation	58	1,312
Gross Unrealized Depreciation	134	29
Fair Value	17,986	75,408
Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	26,622	146,853
Gross Unrealized Appreciation	34	2,376
Gross Unrealized Depreciation	534	250
Fair Value	26,122	148,979
Corporate bonds | Financial services | Continuing and Discontinuing Operations
HELD-TO-MATURITY
Amortized Cost		150
Gross Unrealized Appreciation		0
Gross Unrealized Depreciation		0
Fair Value		150
Fixed maturities:
Amortized Cost	77,788	277,824
Gross Unrealized Appreciation	164	5,769
Gross Unrealized Depreciation	1,888	442
Fair Value	76,064	283,151
Mortgage-backed securities | Continuing and Discontinuing Operations
HELD-TO-MATURITY
Amortized Cost		34
Gross Unrealized Appreciation		0
Gross Unrealized Depreciation		0
Fair Value		34
Fixed maturities:
Amortized Cost	7,985	13,828
Gross Unrealized Appreciation	13	101
Gross Unrealized Depreciation	260	238
Fair Value	7,738	13,691
U.S. Treasury | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	27,195	17,073
Gross Unrealized Appreciation	0	4
Gross Unrealized Depreciation	354	186
Fair Value	26,841	16,891
U.S. government agency | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	212,542	121,574
Gross Unrealized Appreciation	310	1,311
Gross Unrealized Depreciation	5,862	717
Fair Value	206,990	122,168
States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	99,023	107,689
Gross Unrealized Appreciation	574	2,446
Gross Unrealized Depreciation	1,359	439
Fair Value	98,238	109,696
States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	37,389	47,477
Gross Unrealized Appreciation	251	1,174
Gross Unrealized Depreciation	289	10
Fair Value	37,351	48,641
States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	115,440	139,870
Gross Unrealized Appreciation	333	2,462
Gross Unrealized Depreciation	2,559	813
Fair Value	113,214	141,519
States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	107,993	111,123
Gross Unrealized Appreciation	643	2,351
Gross Unrealized Depreciation	1,998	463
Fair Value	106,638	113,011
States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	140,245	155,475
Gross Unrealized Appreciation	817	3,620
Gross Unrealized Depreciation	1,735	351
Fair Value	139,327	158,744
States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	63,758	79,028
Gross Unrealized Appreciation	240	1,351
Gross Unrealized Depreciation	1,901	619
Fair Value	62,097	79,760
States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	241,007	260,145
Gross Unrealized Appreciation	611	5,218
Gross Unrealized Depreciation	6,177	1,851
Fair Value	235,441	263,512
States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	145,072	156,576
Gross Unrealized Appreciation	737	2,929
Gross Unrealized Depreciation	3,411	1,198
Fair Value	142,398	158,307
Foreign bonds | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	9,722	51,361
Gross Unrealized Appreciation	49	1,441
Gross Unrealized Depreciation	24	49
Fair Value	9,747	52,753
Public utilities | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	54,606	206,028
Gross Unrealized Appreciation	129	3,386
Gross Unrealized Depreciation	1,191	270
Fair Value	53,544	209,144
Government national mortgage association | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	78,797	157,836
Gross Unrealized Appreciation	121	1,921
Gross Unrealized Depreciation	3,602	2,274
Fair Value	75,316	157,483
Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	108,666	201,320
Gross Unrealized Appreciation	7	1,879
Gross Unrealized Depreciation	2,957	4,047
Fair Value	105,716	199,152
Federal national mortgage association | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	53,776	104,903
Gross Unrealized Appreciation	2	1,703
Gross Unrealized Depreciation	1,924	1,174
Fair Value	51,854	105,432
Asset-backed securities | Continuing and Discontinuing Operations
Fixed maturities:
Amortized Cost	3,238	4,282
Gross Unrealized Appreciation	318	362
Gross Unrealized Depreciation	41	8
Fair Value	$ 3,515	4,636
Common stocks | Public utilities | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		6,394
Gross Unrealized Appreciation		16,075
Gross Unrealized Depreciation		30
Fair Value		22,439
Common stocks | Energy | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		6,514
Gross Unrealized Appreciation		8,171
Gross Unrealized Depreciation		120
Fair Value		14,565
Common stocks | Industrials | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		13,117
Gross Unrealized Appreciation		53,522
Gross Unrealized Depreciation		120
Fair Value		66,519
Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		10,110
Gross Unrealized Appreciation		15,742
Gross Unrealized Depreciation		164
Fair Value		25,688
Common stocks | Health care | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		7,763
Gross Unrealized Appreciation		32,340
Gross Unrealized Depreciation		0
Fair Value		40,103
Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		6,067
Gross Unrealized Appreciation		11,556
Gross Unrealized Depreciation		115
Fair Value		17,508
Common stocks | Financial services | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		11,529
Gross Unrealized Appreciation		104,985
Gross Unrealized Depreciation		67
Fair Value		116,447
Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Equity securities:
Cost or Amortized Cost		992
Gross Unrealized Appreciation		305
Gross Unrealized Depreciation		0
Fair Value		$ 1,297

Summary of Investments (Maturit

Summary of Investments (Maturities) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Available-For-Sale, Amortized Cost
Due in one year or less	$ 48,539
Due after one year through five years	212,322
Due after five years through 10 years	518,809
Due after 10 years	732,248
Amortized Cost	1,764,380	$ 1,516,610
Available-For-Sale, Fair Value
Due in one year or less	48,703
Due after one year through five years	211,709
Due after five years through 10 years	513,464
Due after 10 years	712,016
Fair Value	1,730,031	1,535,070
Trading, Amortized Cost
Due in one year or less	3,347
Due after one year through five years	6,835
Due after five years through 10 years	0
Due after 10 years	1,865
Amortized Cost	12,047	14,582
Trading, Fair Value
Due in one year or less	3,431
Due after one year through five years	8,797
Due after five years through 10 years	0
Due after 10 years	2,171
Fair Value	14,399	$ 16,842
Asset-backed securities
Available-For-Sale, Amortized Cost
Securities not categorized by contractual maturity	3,238
Available-For-Sale, Fair Value
Securities not categorized by contractual maturity	3,515
Mortgage-backed securities
Available-For-Sale, Amortized Cost
Securities not categorized by contractual maturity	7,985
Available-For-Sale, Fair Value
Securities not categorized by contractual maturity	7,738
Collateralized mortgage obligations
Available-For-Sale, Amortized Cost
Securities not categorized by contractual maturity	241,239
Available-For-Sale, Fair Value
Securities not categorized by contractual maturity	$ 232,886

Summary of Investments (Net Rea

Summary of Investments (Net Realized Investment Gains and Losses and Proceeds) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	$ 13,971	$ 67	$ 7,404	$ 3,397
Debt Securities, Available-for-sale [Abstract]
Proceeds from sales	105,871		129,865
Proceeds from sales		2,293		3,388
Gross realized gains	0	0	140	1,046
Gross realized losses	(94)	0	(401)	0
Discontinued Operations
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	0	296	(1,057)	3,600
Debt Securities, Available-for-sale [Abstract]
Proceeds from sales	0		0
Proceeds from sales		1,844		5,807
Gross realized gains	0	0	0	1,254
Gross realized losses	0	0	0	(78)
Continuing and Discontinuing Operations
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	13,971	363	6,347	6,997
Fixed maturities | Available-for-sale
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	22	118	(171)	645
Fixed maturities | Change in fair value
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	351	(43)	92	504
Fixed maturities | Sales
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	171	72	1,076	117
Equity securities
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	13,944	(80)	6,924	1,842
Real estate
Gain (Loss) on Securities [Line Items]
Net realized investment gains (losses)	$ (517)	$ 0	$ (517)	$ 289

Summary of Investments (Narrati

Summary of Investments (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Investments [Abstract]
Sale of held-to-maturity securities	$ 0	$ 0	$ 0	$ 0
Trading securities	14,399,000		14,399,000		$ 16,842,000
Remaining potential contractual obligation	$ 23,702,000		$ 23,702,000

Summary of Investments (Unreali

Summary of Investments (Unrealized Appreciation) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Change in net unrealized investment appreciation
Available-for-sale fixed maturities	$ (80,023)	$ 34,837
Available-for-sale equity securities	0	27,559
Deferred policy acquisition costs	7,274	(3,582)
Income tax effect	15,279	(20,584)
Net unrealized investment depreciation of discontinued operations, sold	6,714	0
Cumulative change in accounting principles			$ (191,244)	$ 0
Total change in net unrealized investment appreciation, net of tax	$ (242,000)	$ 38,230

Summary of Investments (Investm

Summary of Investments (Investments in Unrealized Loss Position) (Details) $ in Thousands	Sep. 30, 2018USD ($)issue	Dec. 31, 2017USD ($)issue
Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		169
12 months or longer | issue		183
Fair Value
Less than 12 months		$ 414,666
12 months or longer		471,075
Total		885,741
Gross Unrealized Depreciation
Less than 12 months		3,489
12 months or longer		13,400
Total		$ 16,889
U.S. Treasury | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	5
12 months or longer | issue	5
Less than 12 months | issue		5
12 months or longer | issue		2
Fair Value
Less than 12 months	$ 18,989
12 months or longer	7,852
Total	26,841
Less than 12 months		$ 10,370
12 months or longer		5,765
Total		16,135
Gross Unrealized Depreciation
Less than 12 months	107
12 months or longer	247
Total	$ 354
Gross Unrealized Depreciation
Less than 12 months		67
12 months or longer		119
Total		$ 186
U.S. government agency | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	34
12 months or longer | issue	7
Less than 12 months | issue		11
12 months or longer | issue		5
Fair Value
Less than 12 months	$ 158,156
12 months or longer	34,516
Total	192,672
Less than 12 months		$ 64,842
12 months or longer		19,372
Total		84,214
Gross Unrealized Depreciation
Less than 12 months	4,096
12 months or longer	1,766
Total	$ 5,862
Gross Unrealized Depreciation
Less than 12 months		390
12 months or longer		327
Total		$ 717
Fixed Maturities
Number of Issues
Less than 12 months | issue	385	88
12 months or longer | issue	168	112
Fair Value
Less than 12 months	$ 891,883	$ 232,489
12 months or longer	401,995	302,815
Total	1,293,878	535,304
Gross Unrealized Depreciation
Less than 12 months	16,226	1,791
12 months or longer	23,756	7,161
Total	$ 39,982	$ 8,952
Fixed Maturities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	385
12 months or longer | issue	168
Less than 12 months | issue	385	162
12 months or longer | issue	168	173
Fair Value
Less than 12 months	$ 891,883
12 months or longer	401,995
Total	1,293,878
Less than 12 months	891,883	$ 413,380
12 months or longer	401,995	470,440
Total	1,293,878	883,820
Gross Unrealized Depreciation
Less than 12 months	16,226
12 months or longer	23,756
Total	39,982
Gross Unrealized Depreciation
Less than 12 months	16,226	3,206
12 months or longer	23,756	13,067
Total	$ 39,982	$ 16,273
Fixed Maturities | Discontinued Operations
Number of Issues
Less than 12 months | issue	0	74
12 months or longer | issue	0	61
Fair Value
Less than 12 months	$ 0	$ 180,891
12 months or longer	0	167,625
Total	0	348,516
Gross Unrealized Depreciation
Less than 12 months	0	1,415
12 months or longer	0	5,906
Total	$ 0	$ 7,321
States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	17
12 months or longer | issue	5
Less than 12 months | issue		2
12 months or longer | issue		3
Fair Value
Less than 12 months	$ 26,098
12 months or longer	21,109
Total	47,207
Less than 12 months		$ 2,177
12 months or longer		19,729
Total		21,906
Gross Unrealized Depreciation
Less than 12 months	234
12 months or longer	1,125
Total	$ 1,359
Gross Unrealized Depreciation
Less than 12 months		8
12 months or longer		431
Total		$ 439
States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	5
12 months or longer | issue	1
Less than 12 months | issue		0
12 months or longer | issue		1
Fair Value
Less than 12 months	$ 14,211
12 months or longer	3,500
Total	17,711
Less than 12 months		$ 0
12 months or longer		3,644
Total		3,644
Gross Unrealized Depreciation
Less than 12 months	152
12 months or longer	137
Total	$ 289
Gross Unrealized Depreciation
Less than 12 months		0
12 months or longer		10
Total		$ 10
States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	23
12 months or longer | issue	12
Less than 12 months | issue		3
12 months or longer | issue		11
Fair Value
Less than 12 months	$ 46,353
12 months or longer	29,344
Total	75,697
Less than 12 months		$ 7,959
12 months or longer		29,545
Total		37,504
Gross Unrealized Depreciation
Less than 12 months	700
12 months or longer	1,859
Total	$ 2,559
Gross Unrealized Depreciation
Less than 12 months		32
12 months or longer		781
Total		$ 813
States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	21
12 months or longer | issue	8
Less than 12 months | issue		2
12 months or longer | issue		8
Fair Value
Less than 12 months	$ 47,340
12 months or longer	24,676
Total	72,016
Less than 12 months		$ 5,944
12 months or longer		25,755
Total		31,699
Gross Unrealized Depreciation
Less than 12 months	680
12 months or longer	1,318
Total	$ 1,998
Gross Unrealized Depreciation
Less than 12 months		18
12 months or longer		445
Total		$ 463
States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	31
12 months or longer | issue	8
Less than 12 months | issue		2
12 months or longer | issue		7
Fair Value
Less than 12 months	$ 56,940
12 months or longer	20,569
Total	77,509
Less than 12 months		$ 3,486
12 months or longer		19,130
Total		22,616
Gross Unrealized Depreciation
Less than 12 months	672
12 months or longer	1,063
Total	$ 1,735
Gross Unrealized Depreciation
Less than 12 months		15
12 months or longer		336
Total		$ 351
States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	7
12 months or longer | issue	11
Less than 12 months | issue		1
12 months or longer | issue		11
Fair Value
Less than 12 months	$ 18,451
12 months or longer	27,327
Total	45,778
Less than 12 months		$ 4,471
12 months or longer		28,476
Total		32,947
Gross Unrealized Depreciation
Less than 12 months	336
12 months or longer	1,565
Total	$ 1,901
Gross Unrealized Depreciation
Less than 12 months		37
12 months or longer		582
Total		$ 619
States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	40
12 months or longer | issue	32
Less than 12 months | issue		8
12 months or longer | issue		27
Fair Value
Less than 12 months	$ 102,910
12 months or longer	70,521
Total	173,431
Less than 12 months		$ 7,749
12 months or longer		69,917
Total		77,666
Gross Unrealized Depreciation
Less than 12 months	1,578
12 months or longer	4,599
Total	$ 6,177
Gross Unrealized Depreciation
Less than 12 months		107
12 months or longer		1,744
Total		$ 1,851
States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	19
12 months or longer | issue	23
Less than 12 months | issue		3
12 months or longer | issue		22
Fair Value
Less than 12 months	$ 37,030
12 months or longer	52,433
Total	89,463
Less than 12 months		$ 5,424
12 months or longer		56,753
Total		62,177
Gross Unrealized Depreciation
Less than 12 months	573
12 months or longer	2,838
Total	$ 3,411
Gross Unrealized Depreciation
Less than 12 months		16
12 months or longer		1,182
Total		$ 1,198
Foreign bonds
Number of Issues
Less than 12 months | issue		1
12 months or longer | issue		0
Fair Value
Less than 12 months		$ 857
12 months or longer		0
Total		857
Gross Unrealized Depreciation
Less than 12 months		49
12 months or longer		0
Total		$ 49
Foreign bonds | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	1
12 months or longer | issue	0
Fair Value
Less than 12 months	$ 2,973
12 months or longer	0
Total	2,973
Gross Unrealized Depreciation
Less than 12 months	24
12 months or longer	0
Total	$ 24
Public utilities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	19
12 months or longer | issue	1
Less than 12 months | issue		8
12 months or longer | issue		5
Fair Value
Less than 12 months	$ 39,011
12 months or longer	4,860
Total	43,871
Less than 12 months		$ 19,186
12 months or longer		8,446
Total		27,632
Gross Unrealized Depreciation
Less than 12 months	916
12 months or longer	275
Total	$ 1,191
Gross Unrealized Depreciation
Less than 12 months		79
12 months or longer		191
Total		$ 270
Corporate bonds | Energy | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	10
12 months or longer | issue	0
Less than 12 months | issue		1
12 months or longer | issue		1
Fair Value
Less than 12 months	$ 17,219
12 months or longer	0
Total	17,219
Less than 12 months		$ 2,236
12 months or longer		1,606
Total		3,842
Gross Unrealized Depreciation
Less than 12 months	320
12 months or longer	0
Total	$ 320
Gross Unrealized Depreciation
Less than 12 months		13
12 months or longer		97
Total		$ 110
Corporate bonds | Industrials | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	16
12 months or longer | issue	1
Less than 12 months | issue		10
12 months or longer | issue		2
Fair Value
Less than 12 months	$ 39,427
12 months or longer	3,860
Total	43,287
Less than 12 months		$ 27,773
12 months or longer		4,275
Total		32,048
Gross Unrealized Depreciation
Less than 12 months	513
12 months or longer	186
Total	$ 699
Gross Unrealized Depreciation
Less than 12 months		146
12 months or longer		95
Total		$ 241
Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	18
12 months or longer | issue	1
Less than 12 months | issue		14
12 months or longer | issue		3
Fair Value
Less than 12 months	$ 40,446
12 months or longer	974
Total	41,420
Less than 12 months		$ 32,781
12 months or longer		6,813
Total		39,594
Gross Unrealized Depreciation
Less than 12 months	737
12 months or longer	26
Total	$ 763
Gross Unrealized Depreciation
Less than 12 months		248
12 months or longer		246
Total		$ 494
Corporate bonds | Health care | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	5
12 months or longer | issue	0
Less than 12 months | issue		4
12 months or longer | issue		0
Fair Value
Less than 12 months	$ 11,515
12 months or longer	0
Total	11,515
Less than 12 months		$ 9,947
12 months or longer		0
Total		9,947
Gross Unrealized Depreciation
Less than 12 months	134
12 months or longer	0
Total	$ 134
Gross Unrealized Depreciation
Less than 12 months		29
12 months or longer		0
Total		$ 29
Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	9
12 months or longer | issue	1
Less than 12 months | issue		12
12 months or longer | issue		3
Fair Value
Less than 12 months	$ 20,569
12 months or longer	1,833
Total	22,402
Less than 12 months		$ 35,319
12 months or longer		10,413
Total		45,732
Gross Unrealized Depreciation
Less than 12 months	406
12 months or longer	128
Total	$ 534
Gross Unrealized Depreciation
Less than 12 months		122
12 months or longer		128
Total		$ 250
Corporate bonds | Financial services | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	24
12 months or longer | issue	2
Less than 12 months | issue		22
12 months or longer | issue		4
Fair Value
Less than 12 months	$ 54,884
12 months or longer	6,154
Total	61,038
Less than 12 months		$ 50,144
12 months or longer		11,389
Total		61,533
Gross Unrealized Depreciation
Less than 12 months	1,445
12 months or longer	443
Total	$ 1,888
Gross Unrealized Depreciation
Less than 12 months		256
12 months or longer		186
Total		$ 442
Mortgage-backed securities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	32
12 months or longer | issue	13
Less than 12 months | issue		10
12 months or longer | issue		10
Fair Value
Less than 12 months	$ 2,355
12 months or longer	3,602
Total	5,957
Less than 12 months		$ 2,458
12 months or longer		6,641
Total		9,099
Gross Unrealized Depreciation
Less than 12 months	55
12 months or longer	205
Total	$ 260
Gross Unrealized Depreciation
Less than 12 months		18
12 months or longer		220
Total		$ 238
Government national mortgage association | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	11
12 months or longer | issue	18
Less than 12 months | issue		20
12 months or longer | issue		17
Fair Value
Less than 12 months	$ 27,027
12 months or longer	39,403
Total	66,430
Less than 12 months		$ 49,764
12 months or longer		46,969
Total		96,733
Gross Unrealized Depreciation
Less than 12 months	856
12 months or longer	2,746
Total	$ 3,602
Gross Unrealized Depreciation
Less than 12 months		629
12 months or longer		1,645
Total		$ 2,274
Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	21
12 months or longer | issue	11
Less than 12 months | issue		11
12 months or longer | issue		20
Fair Value
Less than 12 months	$ 77,751
12 months or longer	27,390
Total	105,141
Less than 12 months		$ 37,543
12 months or longer		75,679
Total		113,222
Gross Unrealized Depreciation
Less than 12 months	967
12 months or longer	1,990
Total	$ 2,957
Gross Unrealized Depreciation
Less than 12 months		577
12 months or longer		3,470
Total		$ 4,047
Federal national mortgage association | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	16
12 months or longer | issue	8
Less than 12 months | issue		11
12 months or longer | issue		11
Fair Value
Less than 12 months	$ 29,346
12 months or longer	22,072
Total	51,418
Less than 12 months		$ 31,958
12 months or longer		20,123
Total		52,081
Gross Unrealized Depreciation
Less than 12 months	684
12 months or longer	1,240
Total	$ 1,924
Gross Unrealized Depreciation
Less than 12 months		342
12 months or longer		832
Total		$ 1,174
Asset-backed securities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue	1
12 months or longer | issue	0
Less than 12 months | issue		1
12 months or longer | issue		0
Fair Value
Less than 12 months	$ 2,882
12 months or longer	0
Total	2,882
Less than 12 months		$ 992
12 months or longer		0
Total		992
Gross Unrealized Depreciation
Less than 12 months	41
12 months or longer	0
Total	$ 41
Gross Unrealized Depreciation
Less than 12 months		8
12 months or longer		0
Total		$ 8
Common stocks | Public utilities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		0
12 months or longer | issue		1
Fair Value
Less than 12 months		$ 0
12 months or longer		278
Total		278
Gross Unrealized Depreciation
Less than 12 months		0
12 months or longer		30
Total		$ 30
Common stocks | Energy | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		2
12 months or longer | issue		0
Fair Value
Less than 12 months		$ 528
12 months or longer		0
Total		528
Gross Unrealized Depreciation
Less than 12 months		120
12 months or longer		0
Total		$ 120
Common stocks | Industrials | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		1
12 months or longer | issue		5
Fair Value
Less than 12 months		$ 99
12 months or longer		193
Total		292
Gross Unrealized Depreciation
Less than 12 months		13
12 months or longer		107
Total		$ 120
Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		0
12 months or longer | issue		2
Fair Value
Less than 12 months		$ 0
12 months or longer		151
Total		151
Gross Unrealized Depreciation
Less than 12 months		0
12 months or longer		164
Total		$ 164
Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		2
12 months or longer | issue		1
Fair Value
Less than 12 months		$ 466
12 months or longer		4
Total		470
Gross Unrealized Depreciation
Less than 12 months		95
12 months or longer		20
Total		$ 115
Common stocks | Financial services | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		2
12 months or longer | issue		1
Fair Value
Less than 12 months		$ 193
12 months or longer		9
Total		202
Gross Unrealized Depreciation
Less than 12 months		55
12 months or longer		12
Total		$ 67
Equity securities
Number of Issues
Less than 12 months | issue		5
12 months or longer | issue		6
Fair Value
Less than 12 months		$ 1,129
12 months or longer		385
Total		1,514
Gross Unrealized Depreciation
Less than 12 months		236
12 months or longer		303
Total		$ 539
Equity securities | Continuing and Discontinuing Operations
Number of Issues
Less than 12 months | issue		7
12 months or longer | issue		10
Fair Value
Less than 12 months		$ 1,286
12 months or longer		635
Total		1,921
Gross Unrealized Depreciation
Less than 12 months		283
12 months or longer		333
Total		$ 616
Equity securities | Discontinued Operations
Number of Issues
Less than 12 months | issue		2
12 months or longer | issue		4
Fair Value
Less than 12 months		$ 157
12 months or longer		250
Total		407
Gross Unrealized Depreciation
Less than 12 months		47
12 months or longer		30
Total		$ 77

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Narrative) (Details) $ in Thousands	Sep. 30, 2018USD ($)
Rabbi Trust | Other Assets | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash surrender value	$ 4,998

Fair Value of Financial Instr_4

Fair Value of Financial Instruments (Carrying Value and Estimated Fair Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Investments
Held-to-maturity securities	$ 0	$ 150
Available-for-sale, debt securities	1,730,031	1,535,070
Trading securities	14,399	16,842
Available-for-sale, equity securities		280,913
Equity securities	276,253	287,344
Discontinued Operations
Investments
Held-to-maturity securities		34
Available-for-sale, debt securities	0	1,430,025
Available-for-sale, equity securities		23,653
Fair Value
Investments
Held-to-maturity securities	0	150
Available-for-sale, debt securities	1,730,031	1,535,070
Trading securities	14,399	16,842
Equity securities	276,253	287,344
Mortgage loans	14,749	0
Other long-term investments	40,432	49,352
Short-term investments	175	175
Cash and cash equivalents	52,252	95,562
Corporate-owned life insurance	4,998	4,029
Fair Value | Discontinued Operations
Investments
Held-to-maturity securities	0	34
Available-for-sale, debt securities	0	1,430,025
Available-for-sale, equity securities		23,653
Mortgage loans	0	3,594
Policy loans	0	5,815
Other long-term investments	0	16,437
Cash and cash equivalents	0	15,851
Policy reserves
Annuity (accumulations)	0	591,702
Annuity (benefit payments)	0	147,038
Carrying Value
Investments
Held-to-maturity securities	0	150
Available-for-sale, debt securities	1,730,031	1,535,070
Trading securities	14,399	16,842
Equity securities	276,253	287,344
Mortgage loans	14,896	0
Other long-term investments	40,432	49,352
Short-term investments	175	175
Cash and cash equivalents	52,252	95,562
Corporate-owned life insurance	4,998	4,029
Carrying Value | Discontinued Operations
Investments
Held-to-maturity securities	0	34
Available-for-sale, debt securities	0	1,430,025
Available-for-sale, equity securities		23,653
Mortgage loans	0	3,435
Policy loans	0	5,815
Other long-term investments	0	16,437
Cash and cash equivalents	0	15,851
Policy reserves
Annuity (accumulations)	0	611,866
Annuity (benefit payments)	$ 0	$ 93,560

Fair Value of Financial Instr_5

Fair Value of Financial Instruments (Financial Instruments Measured at Fair Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	$ 1,730,031	$ 1,535,070
Available-for-sale, equity securities		280,913
Trading securities	14,399	16,842
Equity securities	276,253	287,344
Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	1,430,025
Available-for-sale, equity securities		23,653
Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	1,730,031	2,965,095
Available-for-sale, equity securities		304,566
Available-for-sale securities, fair value		3,269,661
U.S. Treasury | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,841	16,891
U.S. government agency | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	206,990	122,168
States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	98,238	109,696
States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	37,351	48,641
States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	113,214	141,519
States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	106,638	113,011
States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	139,327	158,744
States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	62,097	79,760
States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	235,441	263,512
States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	142,398	158,307
Foreign bonds | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	9,747	52,753
Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	53,544	209,144
Corporate bonds | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,686	95,053
Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	55,531	221,707
Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,677	186,257
Corporate bonds | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	17,986	75,408
Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,122	148,979
Corporate bonds | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	76,064	283,151
Mortgage-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	7,738	13,691
Government national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	75,316	157,483
Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	105,716	199,152
Federal national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,854	105,432
Asset-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	3,515	4,636
Common stocks | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		22,439
Common stocks | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		14,565
Common stocks | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		66,519
Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		25,688
Common stocks | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		40,103
Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		17,508
Common stocks | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		116,447
Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		1,297
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	175	175
Money Market Accounts	3,824	6,147
Corporate-Owned Life Insurance	4,998	4,029
Recurring | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	0	0
Money Market Accounts	0	10,677
Corporate-Owned Life Insurance	0	0
Recurring | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	1,730,031
Available-for-sale securities, fair value		3,269,661
Trading securities	14,399	23,273
Equity securities	276,253
Short-Term Investments	175	175
Money Market Accounts	3,824	16,824
Corporate-Owned Life Insurance	4,998	4,029
Total Assets Measured at Fair Value	2,029,680	3,313,962
Recurring | U.S. Treasury | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,841	16,891
Trading securities	200
Recurring | U.S. government agency | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	206,990	122,168
Recurring | States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	98,238	109,696
Recurring | States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	37,351	48,641
Recurring | States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	113,214	141,519
Recurring | States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	106,638	113,011
Recurring | States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	139,327	158,744
Recurring | States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	62,097	79,760
Recurring | States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	235,441	263,512
Recurring | States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	142,398	158,307
Recurring | Foreign bonds | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	9,747	52,753
Recurring | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	53,544	209,144
Recurring | Corporate bonds | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,686	95,053
Recurring | Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	55,531	221,707
Trading securities	1,812	2,220
Recurring | Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,677	186,257
Trading securities	1,750	1,535
Recurring | Corporate bonds | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	17,986	75,408
Trading securities	3,182	3,741
Recurring | Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,122	148,979
Trading securities	2,694	1,221
Recurring | Corporate bonds | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	76,064	283,151
Trading securities	2,114	5,566
Recurring | Mortgage-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	7,738	13,691
Recurring | Government national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	75,316	157,483
Recurring | Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	105,716	199,152
Recurring | Federal national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,854	105,432
Recurring | Asset-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	3,515	4,636
Recurring | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	1,730,031	1,535,070
Trading securities	14,399	16,842
Recurring | Fixed Maturities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	1,430,025
Trading securities	0	0
Recurring | Fixed Maturities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities		2,965,095
Recurring | Common stocks | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		22,439
Equity securities	15,563
Recurring | Common stocks | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		14,565
Equity securities	13,647
Recurring | Common stocks | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		66,519
Equity securities	62,741
Recurring | Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		25,688
Equity securities	25,870
Recurring | Common stocks | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		40,103
Equity securities	22,991
Recurring | Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		17,508
Equity securities	15,047
Recurring | Common stocks | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		116,447
Equity securities	114,708
Recurring | Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		1,297
Trading securities		2,541
Equity securities	5,686
Recurring | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		280,913
Trading securities		6,431
Equity securities	276,253
Recurring | Equity securities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		23,653
Trading securities		0
Equity securities	0
Recurring | Equity securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		304,566
Recurring | Equity securities | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		874
Recurring | Equity securities | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		190
Recurring | Equity securities | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		989
Recurring | Equity securities | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,314
Recurring | Equity securities | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		325
Recurring | Equity securities | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		198
Recurring | Redeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	2,647	2,559
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	175	175
Money Market Accounts	3,824	6,147
Corporate-Owned Life Insurance		0
Recurring | Level 1 | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	0	0
Money Market Accounts	0	10,677
Corporate-Owned Life Insurance	0	0
Recurring | Level 1 | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0
Available-for-sale securities, fair value		303,682
Trading securities	2,647	8,990
Equity securities	275,658
Short-Term Investments	175	175
Money Market Accounts	3,824	16,824
Corporate-Owned Life Insurance	0	0
Total Assets Measured at Fair Value	282,304	329,671
Recurring | Level 1 | U.S. Treasury | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0
Recurring | Level 1 | U.S. government agency | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Foreign bonds | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Corporate bonds | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Corporate bonds | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Corporate bonds | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Mortgage-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Government national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Federal national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Asset-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 1 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities		0
Trading securities	2,647	2,559
Recurring | Level 1 | Fixed Maturities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 1 | Fixed Maturities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities		0
Recurring | Level 1 | Common stocks | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		22,439
Equity securities	15,563
Recurring | Level 1 | Common stocks | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		14,565
Equity securities	13,647
Recurring | Level 1 | Common stocks | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		66,517
Equity securities	62,741
Recurring | Level 1 | Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		25,688
Equity securities	25,870
Recurring | Level 1 | Common stocks | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		40,103
Equity securities	22,991
Recurring | Level 1 | Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		17,508
Equity securities	15,047
Recurring | Level 1 | Common stocks | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		116,447
Equity securities	114,708
Recurring | Level 1 | Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		415
Trading securities		2,541
Equity securities	5,091
Recurring | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		280,031
Trading securities		6,431
Equity securities	275,658
Recurring | Level 1 | Equity securities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		23,651
Trading securities		0
Equity securities	0
Recurring | Level 1 | Equity securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		303,682
Recurring | Level 1 | Equity securities | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		874
Recurring | Level 1 | Equity securities | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		190
Recurring | Level 1 | Equity securities | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		989
Recurring | Level 1 | Equity securities | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		1,314
Recurring | Level 1 | Equity securities | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		325
Recurring | Level 1 | Equity securities | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		198
Recurring | Level 1 | Redeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	2,647	2,559
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments		0
Money Market Accounts		0
Corporate-Owned Life Insurance	4,998	4,029
Recurring | Level 2 | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	0	0
Recurring | Level 2 | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	1,729,149
Available-for-sale securities, fair value		2,956,105
Trading securities	11,752	14,283
Equity securities	0
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	4,998	4,029
Total Assets Measured at Fair Value	1,745,899	2,974,417
Recurring | Level 2 | U.S. Treasury | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,841	16,891
Trading securities	200
Recurring | Level 2 | U.S. government agency | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	206,990	122,168
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	98,238	109,696
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	37,351	48,641
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	113,214	141,519
Recurring | Level 2 | States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	106,638	113,011
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	139,327	158,744
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	62,097	79,760
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	235,441	263,512
Recurring | Level 2 | States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	142,398	158,307
Recurring | Level 2 | Foreign bonds | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	9,747	52,753
Recurring | Level 2 | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	53,544	209,144
Recurring | Level 2 | Corporate bonds | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,686	95,053
Recurring | Level 2 | Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	55,531	221,707
Trading securities	1,812	2,220
Recurring | Level 2 | Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,677	185,589
Trading securities	1,750	1,535
Recurring | Level 2 | Corporate bonds | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	17,986	75,408
Trading securities	3,182	3,741
Recurring | Level 2 | Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	26,122	148,979
Trading securities	2,694	1,221
Recurring | Level 2 | Corporate bonds | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	75,814	275,474
Trading securities	2,114	5,566
Recurring | Level 2 | Mortgage-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	7,738	13,691
Recurring | Level 2 | Government national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	75,316	157,483
Recurring | Level 2 | Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	105,716	199,152
Recurring | Level 2 | Federal national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	51,854	105,432
Recurring | Level 2 | Asset-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	2,883	3,989
Recurring | Level 2 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	1,729,149	1,534,323
Trading securities	11,752	14,283
Recurring | Level 2 | Fixed Maturities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	1,421,780
Trading securities	0	0
Recurring | Level 2 | Fixed Maturities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities		2,956,103
Recurring | Level 2 | Common stocks | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Common stocks | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Common stocks | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		2
Equity securities	0
Recurring | Level 2 | Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Common stocks | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Common stocks | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 2 | Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Trading securities		0
Equity securities	0
Recurring | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Trading securities		0
Equity securities	0
Recurring | Level 2 | Equity securities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		2
Trading securities		0
Equity securities	0
Recurring | Level 2 | Equity securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		2
Recurring | Level 2 | Equity securities | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Equity securities | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Equity securities | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Equity securities | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Equity securities | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Equity securities | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 2 | Redeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	0	0
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments		0
Money Market Accounts		0
Corporate-Owned Life Insurance		0
Recurring | Level 3 | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	0	0
Recurring | Level 3 | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	882
Available-for-sale securities, fair value		9,874
Trading securities	0	0
Equity securities	595
Short-Term Investments	0	0
Money Market Accounts	0	0
Corporate-Owned Life Insurance	0	0
Total Assets Measured at Fair Value	1,477	9,874
Recurring | Level 3 | U.S. Treasury | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0
Recurring | Level 3 | U.S. government agency | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | General obligations: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue: | Midwest | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue: | Northeast | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue: | South | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | States, municipalities and political subdivisions | Special revenue: | West | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Foreign bonds | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Corporate bonds | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Corporate bonds | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 3 | Corporate bonds | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	668
Trading securities	0	0
Recurring | Level 3 | Corporate bonds | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 3 | Corporate bonds | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Trading securities	0	0
Recurring | Level 3 | Corporate bonds | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	250	7,677
Trading securities	0	0
Recurring | Level 3 | Mortgage-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Government national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Federal home loan mortgage corporation | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Federal national mortgage association | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	0
Recurring | Level 3 | Asset-backed securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	632	647
Recurring | Level 3 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	882	747
Trading securities	0	0
Recurring | Level 3 | Fixed Maturities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities	0	8,245
Trading securities	0	0
Recurring | Level 3 | Fixed Maturities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, debt securities		8,992
Recurring | Level 3 | Common stocks | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Technology, media and telecommunications | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Common stocks | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Equity securities	0
Recurring | Level 3 | Nonredeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		882
Trading securities		0
Equity securities	595
Recurring | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		882
Trading securities		0
Equity securities	595
Recurring | Level 3 | Equity securities | Discontinued Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		0
Trading securities		0
Equity securities	0
Recurring | Level 3 | Equity securities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, equity securities		882
Recurring | Level 3 | Equity securities | Public utilities | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Equity securities | Energy | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Equity securities | Industrials | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Equity securities | Consumer goods and services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Equity securities | Health care | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Equity securities | Financial services | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities		0
Recurring | Level 3 | Redeemable preferred stocks | Continuing and Discontinuing Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	$ 0	$ 0

Fair Value of Financial Instr_6

Fair Value of Financial Instruments (Level 3 Securities) (Details) - Recurring - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 1,408	$ 1,629
Net unrealized gains (losses)	69	(152)
Ending Balance	1,477	1,477
Corporate bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	100	100
Net unrealized gains (losses)	150	150
Ending Balance	250	250
Asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	639	647
Net unrealized gains (losses)	(7)	(15)
Ending Balance	632	632
Equities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	669	882
Net unrealized gains (losses)	(74)	(287)
Ending Balance	$ 595	$ 595

Fair Value of Financial Instr_7

Fair Value of Financial Instruments (Carrying Value of Commercial Mortgage Loans and Additional Information) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 14,896	$ 0
Total mortgage loans | Mortgage Loans by Region
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 14,896	$ 0
Percent of Total	100.00%	0.00%
Total mortgage loans | Mortgage Loans by Region | East North Central
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 3,245	$ 0
Percent of Total	21.80%	0.00%
Total mortgage loans | Mortgage Loans by Region | Southern Atlantic
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 6,651	$ 0
Percent of Total	44.70%	0.00%
Total mortgage loans | Mortgage Loans by Region | East South Central
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 5,000	$ 0
Percent of Total	33.50%	0.00%
Total mortgage loans | Mortgage Loans by Property Type
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 14,896	$ 0
Percent of Total	100.00%	0.00%
Total mortgage loans | Mortgage Loans by Property Type | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 3,245	$ 0
Percent of Total	21.80%	0.00%
Total mortgage loans | Mortgage Loans by Property Type | Office
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 11,651	$ 0
Percent of Total	78.20%	0.00%
Less than 65%
Financing Receivable, Recorded Investment [Line Items]
Carrying Value	$ 14,896	$ 0

Reserves for Losses and Loss _3

Reserves for Losses and Loss Settlement Expenses (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross liability for losses and loss settlement expenses at beginning of year	$ 1,224,183	$ 1,123,896
Ceded losses and loss settlement expenses	(59,871)	(59,794)
Net liability for losses and loss settlement expenses at beginning of year	1,164,312	1,064,102
Losses and loss settlement expenses incurred for claims occurring during
Current year	575,214	779,966
Prior years	(47,673)	(54,253)
Total incurred	527,541	725,713
Losses and loss settlement expense payments for claims occurring during
Current year	212,138	311,972
Prior years	263,552	313,531
Total paid	475,690	625,503
Net liability for losses and loss settlement expenses at end of year	1,216,163	1,164,312
Ceded loss and loss settlement expenses	61,914	59,871
Gross liability for losses and loss settlement expenses at end of period	$ 1,278,077	$ 1,224,183

Employee Benefits (Details)

Employee Benefits (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Pension Plan
Net periodic benefit cost
Service cost		$ 2,175	$ 1,714	$ 6,525	$ 5,141
Interest cost		1,875	1,765	5,625	5,295
Expected return on plan assets		(2,626)	(2,413)	(7,877)	(7,237)
Amortization of prior service credit		0	0	0	0
Amortization of net loss		1,072	891	3,215	2,673
Net periodic benefit cost		2,496	1,957	7,488	5,872
Estimated 2018 pension plan contribution, disclosed in prior year 10K						$ 6,400
Contribution by employer	$ 10,000			16,400
Postretirement Benefit Plan
Net periodic benefit cost
Service cost		750	505	2,249	1,515
Interest cost		502	482	1,506	1,446
Expected return on plan assets		0	0	0	0
Amortization of prior service credit		(1,352)	(1,352)	(4,056)	(4,056)
Amortization of net loss		589	462	1,767	1,384
Net periodic benefit cost		$ 489	$ 97	$ 1,466	$ 289

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		117 Months Ended
	May 31, 2014	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2008	Dec. 31, 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 1,320	$ 1,202	$ 4,040	$ 3,456
Stock-based compensation expense to be recognized through results of operations		$ 8,287		$ 8,287		$ 8,287
Employee Stock Award Plan-2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)		879,913		879,913		879,913	996,828	1,900,000
Additional shares authorized (in shares)	1,500,000			0		1,500,000
Employee Stock Award Plan-2008 | Restricted Stock Awards | Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Employee Stock Award Plan-2008 | Restricted Stock Awards | Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				5 years
Employee Stock Award Plan-2008 | Options Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period				10 years
Director Plan - 2005
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance (in shares)		49,163		49,163		49,163	61,813		300,000

Stock-Based Compensation (Activ

Stock-Based Compensation (Activity in the Stock Plan) (Details) - shares	1 Months Ended	9 Months Ended	117 Months Ended	165 Months Ended
	May 31, 2014	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2018
Employee Stock Award Plan-2008
Authorized Shares Available for Future Award Grants
Beginning balance (in shares)		996,828	1,900,000
Additional shares authorized (in shares)	1,500,000	0	1,500,000
Number of awards granted (in shares)		(157,188)	(3,029,159)
Number of awards forfeited or expired (in shares)		40,273	509,072
Ending balance (in shares)		879,913	879,913	879,913
Employee Stock Award Plan-2008 | Options Awards
Authorized Shares Available for Future Award Grants
Number of option awards exercised (in shares)		211,789	1,297,684
Employee Stock Award Plan-2008 | Unrestricted Stock Awards
Authorized Shares Available for Future Award Grants
Number of awards granted (in shares)			(8,470)
Employee Stock Award Plan-2008 | Restricted Stock Awards
Authorized Shares Available for Future Award Grants
Number of restricted stock awards vested (in shares)		19,658	57,826
Director Plan - 2005
Authorized Shares Available for Future Award Grants
Beginning balance (in shares)		61,813		300,000
Number of awards granted (in shares)		(12,650)		(274,840)
Number of awards forfeited or expired (in shares)				24,003
Ending balance (in shares)		49,163	49,163	49,163
Director Plan - 2005 | Options Awards
Authorized Shares Available for Future Award Grants
Number of option awards exercised (in shares)		24,953		114,234
Number of restricted stock awards vested (in shares)		17,269		71,541

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock-based Compensation Expense) (Details) $ in Thousands	Sep. 30, 2018USD ($)
Share-based Compensation [Abstract]
2,018	$ 1,318
2,019	4,032
2,020	2,355
2,021	544
2,022	38
Total	$ 8,287

Segment Information (Details)

Segment Information (Details)	Sep. 17, 2017segment	Sep. 30, 2018segmentlocation
Segment Reporting Information [Line Items]
Number of business segments | segment	2	1
Property and Casualty Insurance
Segment Reporting Information [Line Items]
Number of domestic locations | location		6

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basic and Diluted Earnings per Share [Line Items]
Net income (loss) from continuing operations	$ 11,070	$ (19,082)	$ 31,591	$ (389)
Weighted-average common shares outstanding (in shares)	25,052,627	24,960,086	24,982,155	25,177,133
Weighted-average common shares for EPS calculation (in shares)	25,626,951	24,960,086	25,607,305	25,666,405
Earnings (loss) per common share from continuing operations, basic (in dollars per share)	$ 0.44	$ (0.77)	$ 1.26	$ (0.01)
Earnings (loss) per common share from continuing operations, diluted (in dollars per share)	0.43	(0.77)	1.23	(0.01)
Earnings per common share from discontinued operations, basic (in dollars per share)	0	0.05	(0.08)	0.21
Earnings per common share from discontinued operations, diluted (in dollars per share)	0	0.05	(0.07)	0.21
Gain on sale of discontinued operations, net of taxes, basic (in dollars per share)			1.10	0
Gain on sale of discontinued operations, net of taxes, diluted (in dollars per share)			1.07	0
Earnings (loss) per common share, basic (in dollars per share)	0.44	(0.72)	2.28	0.20
Earnings (loss) per common share, diluted (in dollars per share)	$ 0.43	$ (0.72)	$ 2.23	$ 0.20
Awards excluded from diluted earnings per share calculation (in shares)	0	0	2,681	0
Restricted Stock Unit Awards
Basic and Diluted Earnings per Share [Line Items]
Add dilutive effect of share-based awards outstanding (in shares)	279,636	0	279,636	253,082
Stock Options
Basic and Diluted Earnings per Share [Line Items]
Add dilutive effect of share-based awards outstanding (in shares)	294,688	0	345,514	236,190

Credit Facility (Details)

Credit Facility (Details)	Feb. 02, 2016USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2017USD ($)
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 100,000,000
Debt covenant, maximum debt to total capitalization ratio	0.35
Outstanding balance on credit facility		$ 0	$ 0
Interest expense incurred		$ 0	$ 0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 50,000,000
Credit agreement term	4 years
Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 20,000,000
Swing Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 5,000,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of year		$ 973,373
Cumulative effect of change in accounting principle			$ (191,244)	$ 0
Change in accumulated other comprehensive income before reclassifications	$ (12,157)	(51,274)
Reclassification adjustments from accumulated other comprehensive income (loss)	1,704	4,453
Balance, end of period	884,216	884,216
Net unrealized appreciation on investments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of year	(15,370)	214,865
Cumulative effect of change in accounting principle			(191,244)
Change in accumulated other comprehensive income before reclassifications	(12,157)	(51,274)
Reclassification adjustments from accumulated other comprehensive income (loss)	392	518
Balance, end of period	(27,135)	(27,135)
Liability for underfunded employee benefit costs
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of year	(43,928)	(46,551)
Cumulative effect of change in accounting principle			0
Change in accumulated other comprehensive income before reclassifications	0	0
Reclassification adjustments from accumulated other comprehensive income (loss)	1,312	3,935
Balance, end of period	(42,616)	(42,616)
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of year	(59,298)	168,314
Cumulative effect of change in accounting principle			$ (191,244)
Balance, end of period	$ (69,751)	$ (69,751)

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	Mar. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of discontinued operations, net of taxes		$ 0	$ 0		$ 27,307	$ 0
United Life | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, cash consideration	$ 280,000
Disposal group, adjustment to consideration	21
Proceeds from disposal of subsidiary	279,979
Gain on sale of discontinued operations, net of taxes	$ 27,307
Transition services agreement duration	24 months
Cash received as part of the TSA agreement				$ 317

Discontinued Operations (Balanc

Discontinued Operations (Balance Sheets) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Fixed maturities
Total assets held for sale	$ 0	$ 1,586,134
Liabilities
Total liabilities held for sale	0	1,347,135
United Life | Discontinued Operations, Disposed of by Sale
Fixed maturities
Held-to-maturity, at amortized cost (fair value $0 in 2018 and $34 in 2017)	0	34
Fixed maturities, held-to-maturity securities, fair value	0	34
Available-for-sale, at fair value (amortized cost $0 in 2018 and $1,412,291 in 2017)	0	1,430,025
Fixed maturities, available-for-sale securities, amortized cost	0	1,412,291
Equity Securities at fair value (cost $0 in 2018 and $5,099 in 2017)	0	23,653
Equity securities, amortized cost	0	5,099
Mortgage loans	0	3,435
Policy loans	0	5,815
Other long-term investments	0	16,437
Total investments	0	1,479,399
Cash and cash equivalents	0	15,851
Deferred policy acquisition costs	0	71,151
Other assets	0	19,733
Total assets held for sale	0	1,586,134
Liabilities
Future policy benefits and losses	0	1,320,401
Deferred income taxes	0	18,716
Accrued expenses and other liabilities	0	8,018
Total liabilities held for sale	$ 0	$ 1,347,135

Discontinued Operations (Statem

Discontinued Operations (Statements of Income) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Benefits, Losses and Expenses
Income from discontinued operations, net of taxes	$ 0	$ 1,218	$ (1,912)	$ 5,419
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	$ 0	$ 0.05	$ (0.08)	$ 0.21
Diluted (in dollars per share)	$ 0	$ 0.05	$ (0.07)	$ 0.21
United Life | Discontinued Operations, Disposed of by Sale
Revenues
Net premiums earned	$ 0	$ 14,230	$ 13,003	$ 45,999
Investment income, net of investment expenses	0	12,354	12,663	37,230
Net realized investment gains (losses)	0	296	(1,057)	3,600
Other income	0	174	146	498
Total revenues	0	27,054	24,755	87,327
Benefits, Losses and Expenses
Losses and loss settlement expenses	0	10,506	10,823	30,679
Increase in liability for future policy benefits	0	5,481	5,023	19,341
Amortization of deferred policy acquisition costs	0	2,156	1,895	5,524
Other underwriting expenses	0	2,444	3,864	9,452
Interest on policyholders’ accounts	0	4,587	4,499	13,982
Total benefits, losses and expenses	0	25,174	26,104	78,978
Income (loss) from discontinued operations before income taxes	0	1,880	(1,349)	8,349
Federal income tax expense	0	662	563	2,930
Income from discontinued operations, net of taxes	$ 0	$ 1,218	$ (1,912)	$ 5,419
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	$ 0	$ 0.05	$ (0.08)	$ 0.21
Diluted (in dollars per share)	$ 0	$ 0.05	$ (0.07)	$ 0.21