FBL Financial (FFG) 10-Q 3 May 18 2018 Q1 Quarterly report Financial data

Document and entity information

Document and entity information Document - USD ($)	3 Months Ended
	Mar. 31, 2018	May 01, 2018
Document Information [Line Items]
Entity Registrant Name	FBL FINANCIAL GROUP INC
Entity Central Index Key	1,012,771
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float	$ 609,145,446
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		24,797,899
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		11,413

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Investments:
Fixed maturities - available for sale, at fair value (amortized cost: 2018 - $6,891,191; 2017 - $6,757,250)	$ 7,246,912	$ 7,291,967
Equity securities at fair value (cost: 2018 - $98,307; 2017 - $96,715)	103,920	104,145
Mortgage loans	968,664	971,812
Real estate	1,543	1,543
Policy loans	193,413	191,398
Short-term investments	30,075	17,007
Other investments	44,973	42,371
Total investments	8,589,500	8,620,243
Cash and cash equivalents	13,653	52,696
Securities and indebtedness of related parties	130,451	130,240
Accrued investment income	82,403	76,468
Amounts receivable from affiliates	5,117	3,561
Reinsurance recoverable	105,551	108,948
Deferred acquisition costs	357,861	302,611
Value of insurance in force acquired	7,169	4,560
Current income taxes recoverable	44	3,269
Other assets	108,293	112,054
Assets held in separate accounts	638,751	651,963
Total assets	10,038,793	10,066,613
Future policy benefits:
Interest sensitive products	5,446,094	5,299,961
Traditional life insurance and accident and health products	1,762,416	1,750,504
Other policy claims and benefits	47,250	44,475
Supplementary contracts without life contingencies	317,541	322,630
Advance premiums and other deposits	269,378	267,023
Amounts payable to affiliates	1,272	1,164
Long-term debt payable to non-affiliates	97,000	97,000
Deferred income taxes	104,372	131,912
Other liabilities	90,532	111,131
Liabilities related to separate accounts	638,751	651,963
Total liabilities	8,774,606	8,677,763
FBL Financial Group, Inc. stockholders' equity:
Preferred stock, without par value, at liquidation value - authorized 10,000,000 shares, issued and outstanding 5,000,000 Series B shares	3,000	3,000
Accumulated other comprehensive income	186,222	284,983
Retained earnings	921,663	947,148
Total FBL Financial Group, Inc. stockholders’ equity	1,264,152	1,388,792
Noncontrolling interest	35	58
Total stockholders’ equity	1,264,187	1,388,850
Total liabilities and stockholders’ equity	10,038,793	10,066,613
Class A common stock, without par value - authorized 88,500,000 shares, issued and outstanding 24,826,563 shares in 2018 and 24,919,113 shares in 2017
FBL Financial Group, Inc. stockholders' equity:
Common stock, without par value	153,195	153,589
Class B common stock, without par value - authorized 1,500,000 shares, issued and outstanding 11,413 shares in 2018 and 2017
FBL Financial Group, Inc. stockholders' equity:
Common stock, without par value	$ 72	$ 72

Consolidated Balance Sheet Pare

Consolidated Balance Sheet Parenthetical disclosure - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	$ 6,891,191	$ 6,757,250
Available-for-sale Equity Securities, Amortized Cost Basis	$ 96,715	$ 96,715
Common Stock, Shares, Outstanding	24,837,976	24,930,526
Preferred Stock
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Shares Issued	5,000,000	5,000,000
Preferred Stock, Shares Outstanding	5,000,000	5,000,000
Common Class A
Common Stock, Shares Authorized	88,500,000	88,500,000
Common Stock, Shares, Issued	24,826,563	24,919,113
Common Stock, Shares, Outstanding	24,826,563	24,919,113
Common Class B
Common Stock, Shares Authorized	1,500,000	1,500,000
Common Stock, Shares, Issued	11,413	11,413
Common Stock, Shares, Outstanding	11,413	11,413

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Interest sensitive product charges	$ 30,098	$ 29,201
Traditional life insurance premiums	49,497	48,434
Net investment income	101,022	100,994
Net realized capital losses	(1,747)	(403)
Net other-than-temporary impairment losses recognized in earnings	(1,295)	(66)
Other income	4,600	3,760
Total revenues	182,175	181,920
Benefits and expenses:
Interest sensitive product benefits	61,345	62,760
Traditional life insurance benefits	45,456	42,954
Policyholder dividends	2,551	2,553
Underwriting, acquisition and insurance expenses	39,577	34,353
Interest expense	1,213	1,212
Other expenses	5,593	4,151
Total benefits and expenses	155,735	147,983
Income before equity method investments, income taxes and noncontrolling interest	26,440	33,937
Income taxes	(4,687)	(10,733)
Equity income, net of related income taxes	1,855	3,231
Net income	23,608	26,435
Net loss (income) attributable to noncontrolling interest	23	(2)
Net income attributable to FBL Financial Group, Inc.	$ 23,631	$ 26,433
Earnings per common share	$ 0.94	$ 1.05
Earnings per common share - assuming dilution	0.94	1.05
Cash dividends per common share	1.96	1.94
Cash dividend per common share
Benefits and expenses:
Cash dividends per common share	0.46	0.44
Special cash dividend per common share
Benefits and expenses:
Cash dividends per common share	$ 1.50	$ 1.50

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income Statement - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Net income		$ 23,608	$ 26,435
Change in net unrealized investment gains/losses	[1]	(93,154)	15,861
Change in underfunded status of postretirement benefit plans	[1]	262	182
Total other comprehensive income (loss), net of tax	[1]	(92,892)	16,043
Total comprehensive income (loss), net of tax		(69,284)	42,478
Comprehensive (income) loss attributable to noncontrolling interest		23	(2)
Total comprehensive income (loss) applicable to FBL Financial Group, Inc.		$ (69,261)	$ 42,476
[1]	Other comprehensive income (loss) is recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities.

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholder's Equity - USD ($) $ in Thousands	Total		Series B Preferred Stock	Class A and Class B Common Stock	Accumulated Other Comprehensive Income		Retained Earnings	Non- controlling Interest
Balance at Dec. 31, 2016	$ 1,188,258		$ 3,000	$ 152,975	$ 149,555		$ 882,672	$ 56
Net income	26,435						26,433	2
Other comprehensive income	16,043	[1]			16,043
Issuance of common stock under compensation plans	339			339
Dividends on preferred stock	(38)						(38)
Dividends on common stock	(48,341)						(48,341)
Balance at Mar. 31, 2017	1,182,696		3,000	153,314	165,598		860,726	58
Balance at Dec. 31, 2017	1,388,850		3,000	153,661	284,983		947,148	58
Net income	23,608						23,631	(23)
Other comprehensive income	(92,892)	[1]			(92,892)
Issuance of common stock under compensation plans	218			218
Purchase of common stock	(6,806)			(612)			(6,194)
Dividends on preferred stock	(38)						(38)
Dividends on common stock	(48,753)						(48,753)
Balance at Mar. 31, 2018	1,264,187		$ 3,000	$ 153,267	186,222		921,663	$ 35
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | Accounting Standards Update 2016-01 [Member]	$ 0				$ (5,869)	[2]	$ 5,869
[1]	Other comprehensive income (loss) is recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities.
[2]	See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities
Net income	$ 23,608	$ 26,435
Adjustments to reconcile net income to net cash provided by operating activities:
Interest credited to account balances	40,650	40,256
Charges for mortality, surrenders and administration	(29,827)	(28,887)
Net realized losses on investments	3,042	469
Change in fair value of derivatives	(534)	(2,753)
Increase in liabilities for life insurance and other future policy benefits	18,264	17,993
Deferral of acquisition costs	(11,293)	(10,604)
Amortization of deferred acquisition costs and value of insurance in force	10,314	7,598
Change in reinsurance recoverable	2,454	(841)
Provision for deferred income taxes	(2,847)	542
Other	(2,211)	4,590
Net cash provided by operating activities	51,620	54,798
Sales, maturities or repayments:
Fixed maturities - available for sale	138,254	106,257
Equity securities - available for sale	0	744
Mortgage loans	10,383	11,024
Derivative instruments	4,131	3,052
Policy loans	9,133	10,266
Securities and indebtedness of related parties	1,596	2,391
Other long-term investments	938	7
Acquisitions:
Fixed maturities - available for sale	(288,677)	(118,948)
Equity securities - available for sale	(1,389)	(1,102)
Mortgage loans	(7,186)	(50,000)
Derivative instruments	(3,219)	(1,988)
Policy loans	(11,148)	(9,993)
Securities and indebtedness of related parties	(4,652)	(3,712)
Other long-term investments	(5,531)	0
Short-term investments, net change	(13,068)	2,084
Purchases and disposals of property and equipment, net	(1,859)	(2,270)
Net cash used in investing activities	(172,294)	(52,188)
Financing activities
Contract holder account deposits	261,240	116,760
Contract holder account withdrawals	(124,978)	(87,929)
Dividends paid	(48,791)	(48,379)
Issuance or repurchase of common stock, net	(5,840)	128
Net cash provided by (used in) financing activities	81,631	(19,420)
Decrease in cash and cash equivalents	(39,043)	(16,810)
Cash and cash equivalents at beginning of period	52,696	33,583
Cash and cash equivalents at end of period	13,653	16,773
Supplemental disclosures of cash flow information
Cash paid during the period for interest	(1,213)	(1,213)
Cash (paid) received during the period for income taxes	$ (5)	$ 2

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Significant Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation The accompanying unaudited consolidated financial statements of FBL Financial Group, Inc. (we or the Company) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. Our financial statements include all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of our financial position and results of operations. Operating results for the quarter ended March 31, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 . We encourage you to refer to the notes to our consolidated financial statements included in Item 8 of our Form 10-K for the year ended December 31, 2017 for a complete description of our material accounting policies. Also included in the Form 10-K is a description of areas of judgments and estimates and other information necessary to understand our financial position and results of operations. New Accounting Pronouncements Description Date of adoption Effect on our consolidated financial statements or other significant matters Standards adopted: Stockholders' Equity October 1, 2017 The new guidance was effective for 2018, with early adoption permitted. We adopted the new guidance in 2017 by reporting the reclassification in our Consolidated Statement of Stockholders’ Equity. We consider the remeasurement of deferred tax assets and liabilities a provisional estimate, so any adjustments to this estimate during 2018 would result in additional reclassification. Financial instruments - recognition and measurement In January 2016, the FASB issued guidance that amended certain aspects of the recognition and measurement of financial instruments. The new guidance primarily affected the accounting for equity securities, which are now carried at fair value with valuation changes recognized in the statement of operations rather than as other comprehensive income. The presentation and disclosure requirements for financial instruments and the methodology for assessing the need for a valuation allowance on deferred tax assets resulting from unrealized losses on available-for-sale fixed maturity securities were also revised under the new guidance. The new standard required the use of a modified retrospective method at adoption. January 1, 2018 Upon adoption, we reclassified $5.9 million of net unrealized investment gains, net of tax, on our equity securities from accumulated other comprehensive income to retained earnings as a cumulative effect adjustment. Adoption resulted in a decrease to net income of $1.3 million ($0.05 per basic and diluted earnings per share) during the first quarter of 2018. Revenue recognition In May 2014, the FASB issued guidance that outlined a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. Insurance contract and investment related revenue, which make up the majority of our earnings, were specifically excluded from the scope of this guidance. The new guidance was based on the principle that an entity should recognize revenue to reflect the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance also required disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to fulfill a contract. We had the option of using either a full retrospective or a modified retrospective approach for the adoption of the new standard. January 1, 2018 Our revenues that fall under the scope of the new guidance primarily consist of the net commissions on insurance and investment products we broker for others. We have evaluated those contracts and concluded that there was no change in timing or measurement of revenues, as the historical accounting is consistent with the new guidance. Accordingly, there was no impact from adoption. Standards not yet adopted: Leases In February 2016, the FASB issued a new lease accounting standard, which, for most lessees, will result in a gross-up of the balance sheet. Under the new standard, lessees will recognize the leased assets on the balance sheet and will recognize a corresponding liability for the present value of lease payments over the lease term. The new standard requires the application of judgment and estimates. Also, there are accounting policy elections that may be taken both at transition and for the accounting post-transition, including whether to adopt a short-term lease recognition exemption. January 1, 2019 We are currently evaluating the impact of this guidance on our consolidated financial statements. Our most significant lease is for our home office building. See Note 10 of Item 8 of our 2017 Form 10-K for a further description of this lease, including future commitments. Our other leases are primarily shorter term in nature, relating to equipment. Upon adoption we will be required to recognize and measure leases at the beginning of the earliest period presented using the modified retrospective approach. Financial Instruments - credit impairment In June 2016, the FASB issued guidance amending the accounting for the credit impairment of financial instruments. Under the new guidance, impairment losses are required to be estimated using an expected loss model under which a valuation allowance is established and adjusted over time. The valuation allowance will be based on the probability of loss over the life of the instrument, considering historical, current and forecasted information. The new guidance differs significantly from the incurred loss model used today, and will result in the earlier recognition of impairment losses. The new guidance may also increase the volatility of earnings to the extent actual results differ from the assumptions used in the establishment of the valuation allowance. The financial instruments for which we will be required to use the new model include but are not limited to, mortgage loans, lease receivables and reinsurance recoverables. Our available-for-sale fixed maturities will continue to apply the incurred loss model. However, rather than impairment losses resulting in a permanent reduction of carrying value as they do today, such losses will be in the form of a valuation allowance, which can be increased in the case of future credit losses or decreased should conditions improve. January 1, 2020 We are currently evaluating the impact of this new guidance on our consolidated financial statements. We believe the most significant impact upon adoption will be the establishment of an additional valuation allowance for our mortgage loan investments. This guidance will be applied using a modified retrospective approach by recording a cumulative effect adjustment to retained earnings as of the beginning of the year of adoption. Reclassifications We have reclassified our holdings of Federal Home Loan Bank of Des Moines (FHLB) common stock, which we are required to hold as a member of the FHLB system, from equity securities to other investments as the stock is restricted in nature. The 2017 consolidated financial statements have been reclassified to conform to the current financial statement presentation.

Investment Operations

Investment Operations	3 Months Ended
	Mar. 31, 2018
Investment Operations [Abstract]
Investment Operations	Investment Operations Fixed Maturity and Equity Securities Available-For-Sale Fixed Maturity Securities by Investment Category March 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,353,388 $ 224,254 $ (31,961 ) $ 3,545,681 $ 290 Residential mortgage-backed 527,971 31,012 (5,439 ) 553,544 594 Commercial mortgage-backed 784,999 22,428 (14,151 ) 793,276 — Other asset-backed 796,977 20,347 (3,032 ) 814,292 3,350 United States Government and agencies 22,009 1,333 (130 ) 23,212 — States and political subdivisions 1,405,847 113,842 (2,782 ) 1,516,907 — Total fixed maturities $ 6,891,191 $ 413,216 $ (57,495 ) $ 7,246,912 $ 4,234 Available-For-Sale Fixed Maturity and Equity Securities by Investment Category December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,374,927 $ 329,299 $ (15,955 ) $ 3,688,271 $ (504 ) Residential mortgage-backed 483,671 35,890 (3,280 ) 516,281 339 Commercial mortgage-backed 674,076 34,464 (3,233 ) 705,307 — Other asset-backed 818,071 18,645 (3,214 ) 833,502 845 United States Government and agencies 23,378 1,606 (79 ) 24,905 — States and political subdivisions 1,383,127 141,813 (1,239 ) 1,523,701 — Total fixed maturities $ 6,757,250 $ 561,717 $ (27,000 ) $ 7,291,967 $ 680 Equity securities: Non-redeemable preferred stocks $ 92,951 $ 7,146 $ (265 ) $ 99,832 Common stocks 3,764 549 — 4,313 Total equity securities $ 96,715 $ 7,695 $ (265 ) $ 104,145 (1) Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for corporate, residential mortgage-backed, and other asset-backed securities at March 31, 2018 and residential mortgage-backed and other asset-backed securities at December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities. (2) Corporate securities include hybrid preferred securities with a fair value of $16.8 million at March 31, 2018 and $17.5 million at December 31, 2017 . Corporate securities also include redeemable preferred stock with a fair value of $22.0 million at March 31, 2018 and $21.7 million at December 31, 2017 . Available-For-Sale Fixed Maturities by Maturity Date March 31, 2018 Amortized Cost Fair Value (Dollars in thousands) Due in one year or less $ 165,210 $ 167,953 Due after one year through five years 588,250 614,089 Due after five years through ten years 730,313 754,274 Due after ten years 3,297,471 3,549,484 4,781,244 5,085,800 Mortgage-backed and other asset-backed 2,109,947 2,161,112 Total fixed maturities $ 6,891,191 $ 7,246,912 Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Fixed maturities not due at a single maturity date have been included in the above table in the year of final contractual maturity. Net Unrealized Gains on Investments in Accumulated Other Comprehensive Income March 31, December 31, (Dollars in thousands) Net unrealized appreciation on: Fixed maturities - available for sale $ 355,721 $ 534,718 Equity securities - available for sale — 7,430 355,721 542,148 Adjustments for assumed changes in amortization pattern of: Deferred acquisition costs (93,953 ) (147,173 ) Value of insurance in force acquired (11,716 ) (14,870 ) Unearned revenue reserve 8,318 12,705 Adjustments for assumed changes in policyholder liabilities (9,407 ) (18,499 ) Provision for deferred income taxes (52,280 ) (78,605 ) Net unrealized investment gains $ 196,683 $ 295,706 Net unrealized investment gains and losses are recorded net of deferred income taxes and other adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities. Subsequent changes in the fair value of securities for which a previous non-credit OTTI loss was recognized in accumulated other comprehensive income, are reported along with changes in fair value for which no OTTI losses were previously recognized. Fixed Maturity Securities with Unrealized Losses by Length of Time March 31, 2018 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 516,564 $ (13,180 ) $ 162,871 $ (18,781 ) $ 679,435 $ (31,961 ) 55.6 % Residential mortgage-backed 170,226 (4,091 ) 31,038 (1,348 ) 201,264 (5,439 ) 9.5 Commercial mortgage-backed 346,486 (12,199 ) 18,419 (1,952 ) 364,905 (14,151 ) 24.6 Other asset-backed 251,682 (1,633 ) 64,222 (1,399 ) 315,904 (3,032 ) 5.3 United States Government and agencies 5,106 (83 ) 2,324 (47 ) 7,430 (130 ) 0.2 States and political subdivisions 78,770 (1,276 ) 17,463 (1,506 ) 96,233 (2,782 ) 4.8 Total fixed maturities $ 1,368,834 $ (32,462 ) $ 296,337 $ (25,033 ) $ 1,665,171 $ (57,495 ) 100.0 % Fixed Maturity and Equity Securities with Unrealized Losses by Length of Time December 31, 2017 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 85,019 $ (1,261 ) $ 183,820 $ (14,694 ) $ 268,839 $ (15,955 ) 59.1 % Residential mortgage-backed 76,393 (1,757 ) 31,779 (1,523 ) 108,172 (3,280 ) 12.1 Commercial mortgage-backed 151,158 (2,078 ) 16,398 (1,155 ) 167,556 (3,233 ) 12.0 Other asset-backed 159,111 (2,006 ) 71,064 (1,208 ) 230,175 (3,214 ) 11.9 United States Government and agencies 5,698 (47 ) 1,864 (32 ) 7,562 (79 ) 0.3 States and political subdivisions 5,904 (96 ) 20,505 (1,143 ) 26,409 (1,239 ) 4.6 Total fixed maturities $ 483,283 $ (7,245 ) $ 325,430 $ (19,755 ) $ 808,713 $ (27,000 ) 100.0 % Equity securities: Non-redeemable preferred stocks $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Total equity securities $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Fixed maturities in the above tables include 475 securities from 301 issuers at March 31, 2018 and 247 securities from 154 issuers at December 31, 2017 . Unrealized losses increased during the three months ended March 31, 2018 due to higher Treasury rates and wider credit spreads. We do not consider securities to be OTTI when the market decline is attributable to factors such as interest rate movements, market volatility, liquidity, spread widening and credit quality when recovery of all amounts due under the contractual terms of the security is anticipated. Based on our intent not to sell or our belief that we will not be required to sell these securities before recovery of their amortized cost basis, we do not consider these investments to be OTTI at March 31, 2018 . We will continue to monitor the investment portfolio for future changes in issuer facts and circumstances that could result in future impairments beyond those currently identified. Our largest unrealized loss was from a retailer and totaled $2.9 million at March 31, 2018 . As described more fully in Note 1 to our consolidated financial statements included in Item 8 of our Form 10-K for the year ended December 31, 2017, we perform a regular evaluation of all investment classes for impairment, including fixed maturity securities and equity securities, in order to evaluate whether such investments are OTTI. Credit Loss Component of Other-Than-Temporary Impairments on Fixed Maturities Three months ended March 31, 2018 2017 (Dollars in thousands) Balance at beginning of period $ (12,392 ) $ (14,500 ) Reductions due to investments sold or paid down 271 349 Reduction for credit loss that no longer has a portion of the OTTI loss recognized in other comprehensive income 2,529 587 Balance at end of period $ (9,592 ) $ (13,564 ) The table above sets forth the amount of credit loss impairments on fixed maturities held by the Company as of the dates indicated for which the non-credit portion of the OTTI was recognized in other comprehensive income and corresponding changes in such amounts. Credit loss impairments with no portion of the loss recognized in other comprehensive income, such as securities for which OTTI was measured at fair value, are excluded from the table. Realized Gains (Losses) - Recorded in Income Three months ended March 31, 2018 2017 (Dollars in thousands) Realized gains (losses) on sales of investments Fixed maturities: Gross gains $ 83 $ 124 Gross losses — (527 ) Other long-term investments (13 ) — 70 (403 ) Net unrealized losses recognized during the period on equity securities held at the end of the period (1) (1,817 ) — Net realized losses (1,747 ) (403 ) Impairment losses recognized in earnings: Other credit-related (2) (1,295 ) (66 ) Net realized losses on investments recorded in income $ (3,042 ) $ (469 ) (1) See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter. (2) Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets. Proceeds from sales of fixed maturities totaled $5.2 million during the three months ended March 31, 2018 and $9.4 million during the three months ended March 31, 2017 . Realized gains and losses on sales of investments are determined on the basis of specific identification. Mortgage Loans Our mortgage loan portfolio consists of commercial mortgage loans that we have originated. Our lending policies require that the loans be collateralized by the value of the related property, establish limits on the amount that can be loaned to one borrower and require diversification by geographic location and collateral type. We originate loans with an initial loan-to-value ratio that provides sufficient collateral to absorb losses should we be required to foreclose and take possession of the collateral. In order to identify impairment losses, management maintains and regularly reviews a watch list of mortgage loans that have heightened risk. These loans may include those with borrowers delinquent on contractual payments, borrowers experiencing financial difficulty, increases in rental real estate vacancies and significant declines in collateral value. We evaluate each of our mortgage loans individually and establish an estimated loss, if needed, for each impaired loan identified. An estimated loss is needed for loans for which we do not believe we will collect all amounts due according to the contractual terms of the respective loan agreements. Any loan delinquent on contractual payments is considered non-performing. Mortgage loans are placed on non-accrual status if we have concerns regarding the collectability of future payments. Interest income on non-performing loans is generally recognized on a cash basis. Once mortgage loans are classified as non-accrual loans, the resumption of the interest accrual would commence only after all past due interest has been collected or the mortgage loan has been restructured such that the collection of interest is considered likely. At March 31, 2018 and December 31, 2017 , there were no non-performing loans over 90 days past due on contractual payments. At March 31, 2018 , we had committed to provide additional funding for mortgage loans totaling $21.3 million . These commitments arose in the normal course of business at terms that are comparable to similar investments. Mortgage Loans by Collateral Type March 31, 2018 December 31, 2017 Collateral Type Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) Office $ 413,120 42.6 % $ 410,090 42.2 % Retail 288,683 29.8 292,257 30.1 Industrial 205,107 21.2 207,180 21.3 Other 61,754 6.4 62,285 6.4 Total $ 968,664 100.0 % $ 971,812 100.0 % Mortgage Loans by Geographic Location within the United States March 31, 2018 December 31, 2017 Region of the United States Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) South Atlantic $ 295,318 30.5 % $ 296,947 30.5 % Pacific 144,935 14.9 146,320 15.0 West North Central 125,609 13.0 127,096 13.1 Mountain 104,298 10.8 105,627 10.9 East North Central 90,764 9.4 91,971 9.5 West South Central 90,511 9.3 85,566 8.8 East South Central 66,661 6.9 67,228 6.9 New England 34,665 3.6 35,005 3.6 Middle Atlantic 15,903 1.6 16,052 1.7 Total $ 968,664 100.0 % $ 971,812 100.0 % Mortgage Loans by Loan-to-Value Ratio March 31, 2018 December 31, 2017 Loan-to-Value Ratio Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 0% - 50% $ 360,416 37.2 % $ 334,037 34.4 % 51% - 60% 236,382 24.5 258,359 26.6 61% - 70% 301,469 31.1 297,404 30.6 71% - 80% 51,621 5.3 63,116 6.5 81% - 90% 18,776 1.9 18,896 1.9 Total $ 968,664 100.0 % $ 971,812 100.0 % The loan-to-value ratio is determined using the most recent appraised value. Appraisals are updated periodically when there is indication of a possible significant collateral decline or there are loan modifications or refinance requests. Mortgage Loans by Year of Origination March 31, 2018 December 31, 2017 Year of Origination Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 2018 $ 5,800 0.5 % $ — — % 2017 212,785 22.0 214,365 22.1 2016 153,147 15.8 154,359 15.9 2015 143,457 14.8 144,890 14.9 2014 77,119 8.0 77,866 8.0 2013 and prior 376,356 38.9 380,332 39.1 Total $ 968,664 100.0 % $ 971,812 100.0 % Impaired Mortgage Loans March 31, 2018 December 31, 2017 (Dollars in thousands) Unpaid principal balance $ 18,927 $ 19,027 Less: Related allowance (447 ) (497 ) Carrying value of impaired mortgage loans $ 18,480 $ 18,530 Allowance on Mortgage Loans Three months ended March 31, 2018 2017 (Dollars in thousands) Balance at beginning of period $ 497 $ 713 Recoveries (50 ) (50 ) Balance at end of period $ 447 $ 663 Mortgage Loan Modifications Our commercial mortgage loan portfolio can include loans that have been modified. We assess loan modifications on a loan-by-loan basis to evaluate whether a troubled debt restructuring has occurred. Generally, the types of concessions include: reduction of the contractual interest rate to a below-market rate, extension of the maturity date and/or a reduction of accrued interest. The amount, timing and extent of the concession granted is considered in determining if an impairment loss is needed for the restructuring. There were no loan modifications during the three months ended March 31, 2018 or March 31, 2017 . Low Income Housing Tax Credit Investments (LIHTC) We invest in non-guaranteed federal LIHTC that are included in securities and indebtedness of related parties in the consolidated balance sheets. These investments take the form of limited partnerships, which in turn invest in a number of low income housing projects. We use the equity method of accounting for these investments. The limited partnerships generate pre-tax operating losses primarily from the deprecation of the underlying properties, but after-tax gains as the related tax credits are realized and the operating losses are deducted. The timing of the realization of tax credits is subject to fluctuation from period to period due to the timing of housing project completions and the approval of tax credits. Impairment losses may occur when the carrying value of the limited partnership exceeds the future tax benefits. We recognized $0.3 million of impairment losses on these investments during the first three months of 2018, which is reported as other-than-temporary impairment losses in the consolidated statement of operations. The Tax Act did not impact the tax credits we expect to receive from these investments. Equity income, however, was impacted by the Tax Act as the underlying limited partnerships reported aggregate fourth quarter 2017 losses of $1.4 million related to our ownership interest due to lower anticipated tax benefits from future operating loss deductions. These equity losses are reflected in our first quarter 2018 earnings as we record the results of operations from these limited partnerships a quarter in arrears. The carrying value of these investments totaled $79.2 million at March 31, 2018 and $82.4 million at December 31, 2017 . Equity income from these investments as reported in our consolidated statement of operations is as follows: LIHTC Equity Income (Loss), Net of Related Income Taxes Three months ended March 31, 2018 2017 (Dollars in thousands) Equity losses from LIHTC $ (3,005 ) $ (1,805 ) Income tax benefits: Tax benefits from equity losses 631 632 Investment tax credits 3,569 3,529 Equity income from LIHTC, net of related income tax benefits $ 1,195 $ 2,356 At March 31, 2018 , we had committed to provide additional funds for limited partnerships and limited liability companies in which we invest. The amounts of these unfunded commitments totaled $47.5 million , including $1.7 million for LIHTC commitments, which are summarized by year in the following table. LIHTC Commitments by Year March 31, 2018 (Dollars in thousands) 2018 $ 810 2019 46 2020-2025 811 Total $ 1,667 Variable Interest Entities We evaluate our variable interest entity (VIE) investees to determine whether the level of our direct ownership interest, our rights to manage operations, or our obligation to provide ongoing financial support are such that we are the primary beneficiary of the entity, and would therefore be required to consolidate it for financial reporting purposes. After determining that VIE status exists, we review our involvement in the VIE to determine whether we have both the power to direct activities that most significantly impact the economic performance of the VIE, and the obligation to absorb losses or the rights to receive benefits that could be potentially significant to the VIE. This analysis includes a review of the purpose and design of the VIE as well as the role that we played in the formation of the entity and how that role could impact our ability to control the VIE. We also review the activities and decisions considered significant to the economic performance of the VIE and assess what power we have in directing those activities and decisions. Finally, we review the agreements in place to determine if there are any guarantees that would affect our maximum exposure to loss. We have reviewed the circumstances surrounding our investments in VIEs, which are classified as securities and indebtedness of related parties and consist of LIHTC, limited partnerships or limited liability companies accounted for under the equity method. In addition, we have reviewed the ownership interests in our VIEs and determined that we do not hold direct majority ownership or have other contractual rights (such as kick out rights) that give us effective control over these entities resulting in us having both the power to direct activities that most significantly impact the economic performance of the VIE and the obligation to absorb losses or the right to receive benefits that could be potentially significant to the VIE. The maximum loss exposure relative to our VIEs is limited to the carrying value and any unfunded commitments that exist for each particular VIE. We also have not provided additional support or other guarantees that was not previously contractually required (financial or otherwise) to any of the VIEs as of March 31, 2018 or December 31, 2017. Based on this analysis, none of our VIEs were required to be consolidated for any reporting periods presented in this Form 10-Q. VIE Investments by Category March 31, 2018 December 31, 2017 Carrying Value Maximum Exposure to Loss Carrying Value Maximum Exposure to Loss (Dollars in thousands) LIHTC $ 79,176 $ 80,843 $ 82,417 $ 84,103 Investment companies 28,418 63,054 25,335 62,372 Real estate limited partnerships 9,151 20,129 8,589 20,590 Other 728 955 1,182 1,488 Total $ 117,473 $ 164,981 $ 117,523 $ 168,553 In addition, we make passive investments in the normal course of business in structured securities issued by VIEs for which we are not the investment manager. These structured securities include all of the residential mortgage-backed securities, commercial mortgage-backed securities and other asset-backed securities included in our fixed maturities. Our maximum exposure to loss on these securities is limited to our carrying value of the investment. We have determined that we are not the primary beneficiary of these structured securities because we do not have the power to direct the activities that most significantly impact the entities’ economic performance. Derivative Instruments Our primary derivative exposure relates to purchased call options, which provide an economic hedge against the embedded derivatives in our indexed annuity and universal life insurance products. We also have embedded derivatives within our modified coinsurance agreements as well as an interest-only fixed maturity investment. We do not apply hedge accounting to any of our derivative positions, and they are held at fair value. Derivatives Instruments by Type March 31, 2018 December 31, 2017 (Dollars in thousands) Assets Freestanding derivatives: Call options (reported in other investments) $ 12,760 $ 14,824 Embedded derivatives: Modified coinsurance (reported in reinsurance recoverable) 1,069 2,125 Interest-only security (reported in fixed maturities) 1,852 2,096 Total assets $ 15,681 $ 19,045 Liabilities Embedded derivatives: Indexed annuity and universal life products (reported in liability for future policy benefits) $ 28,720 $ 27,774 Modified coinsurance agreements (reported in other liabilities) 154 268 Total liabilities $ 28,874 $ 28,042 Derivative Income (Loss) Three months ended March 31, 2018 2017 (Dollars in thousands) Change in fair value of free standing derivatives: Call options $ (1,152 ) $ 2,365 Change in fair value of embedded derivatives: Modified coinsurance agreements (943 ) (1,410 ) Interest-only security (35 ) (21 ) Indexed annuity and universal life products 2,664 409 Total income from derivatives $ 534 $ 1,343 Derivative income is reported in net investment income except for the change in fair value of the embedded derivatives on our indexed annuity and universal life products, which is reported in interest sensitive product benefits. We are exposed to credit losses in the event of nonperformance of the derivative counterparties. This credit risk is minimized by purchasing such agreements from financial institutions with high credit ratings (currently rated A or better by nationally recognized statistical rating organizations). We have also entered into credit support agreements with the counterparties requiring them to post collateral when net exposures exceed pre-determined thresholds that vary by counterparty. The net amount of such exposure is essentially the market value less collateral held for such agreements with each counterparty. The call options are supported by securities collateral received of $7.5 million at March 31, 2018 , which is held in a separate custodial account. Subject to certain constraints, we are permitted to sell or re-pledge this collateral, but do not have legal rights to the collateral; accordingly, it has not been recorded on our balance sheet. At March 31, 2018 , none of the collateral had been sold or re-pledged. As of March 31, 2018 , our net derivative exposure was $5.3 million .

Fair Values

Fair Values	3 Months Ended
	Mar. 31, 2018
Fair Values [Abstract]
Fair Value	Fair Values The carrying and estimated fair values of our financial instruments are as follows: Fair Values and Carrying Values March 31, 2018 December 31, 2017 Carrying Value Fair Value Carrying Value Fair Value (Dollars in thousands) Assets Fixed maturities - available for sale $ 7,246,912 $ 7,246,912 $ 7,291,967 $ 7,291,967 Equity securities 103,920 103,920 104,145 104,145 Mortgage loans 968,664 972,107 971,812 989,503 Policy loans 193,413 232,674 191,398 236,223 Other investments 44,950 46,040 42,318 43,443 Cash, cash equivalents and short-term investments 43,728 43,728 69,703 69,703 Reinsurance recoverable 1,069 1,069 2,125 2,125 Assets held in separate accounts 638,751 638,751 651,963 651,963 Liabilities Future policy benefits $ 4,332,983 $ 4,142,254 $ 4,192,367 $ 4,147,654 Supplementary contracts without life contingencies 317,541 315,625 322,630 327,151 Advance premiums and other deposits 260,967 260,967 259,099 259,099 Long-term debt 97,000 76,388 97,000 78,628 Other liabilities 154 154 268 268 Liabilities related to separate accounts 638,751 636,666 651,963 649,610 Fair value is based on an exit price, which is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As not all financial instruments are actively traded, various valuation methods may be used to estimate fair value. These methods rely on observable market data, or, if observable market data is not available, the best information available. Significant judgment may be required to interpret the data and select the assumptions used in the valuation estimates, particularly when observable market data is not available. In the discussion that follows, we have ranked our financial instruments by the level of judgment used in the determination of the fair values presented above. The levels are defined as follows: • Level 1 - Fair values are based on unadjusted quoted prices in active markets for identical assets or liabilities. • Level 2 - Fair values are based on inputs, other than quoted prices from active markets, that are observable for the asset or liability, either directly or indirectly. • Level 3 - Fair values are based on significant unobservable inputs for the asset or liability. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, a financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the financial instrument. From time to time there may be movements between levels as inputs become more or less observable, which may depend on several factors including the activity of the market for the specific security, the activity of the market for similar securities, the level of risk spreads and the source from which we obtain the information. Transfers into or out of any level are measured as of the beginning of the period. The following methods and assumptions were used in estimating the fair value of our financial instruments: Fixed maturities: Level 1 fixed maturities consist of U.S. Treasury issues that are actively traded, allowing us to use current market prices as an estimate of their fair value. Level 2 fixed maturities consist of corporate, mortgage- and asset-backed, United States Government agencies, state and political subdivisions and private placement corporate securities with observable market data, and in some circumstances recent trade activity. When quoted prices of identical assets in active markets are not available, our first priority is to obtain prices from third party pricing vendors. We have regular interaction with these vendors to ensure we understand their pricing methodologies and to confirm they are utilizing observable market information. Their methodologies vary by asset class and include inputs such as estimated cash flows, benchmark yields, reported trades, credit quality, industry events and economic events. Fixed maturities with validated prices from pricing services, which includes the majority of our public fixed maturities in all asset classes, are generally reflected in Level 2. Also included in Level 2 are private placement corporate bonds with no quoted market prices available, for which an internal model using substantially all observable inputs or a matrix pricing valuation approach is used. In the matrix approach, securities are grouped into pricing categories that vary by sector, rating and average life. Each pricing category is assigned a risk spread based on studies of observable public market data. The expected cash flows of the security are then discounted back at the current Treasury curve plus the appropriate risk spread. Level 3 fixed maturities include corporate, mortgage- and asset-backed and private placement corporate securities for which there is little or no current market data available. We use external pricing sources, or if prices are not available we will estimate fair value internally. Fair values of private corporate investments in Level 3 are determined by reference to the public market, private transactions or valuations for comparable companies or assets in the relevant asset class when such amounts are available. For other securities for which an exit price based on relevant observable inputs is not obtained, the fair value is determined using a matrix calculation. Fair values estimated through the use of matrix pricing methods rely on an estimate of credit spreads to a risk-free U.S. Treasury yield. Selecting the credit spread requires judgment based on an understanding of the security and may include a market liquidity premium. Our selection of comparable companies as well as the level of spread requires significant judgment. Increases in spreads used in our matrix models, or those used to value comparable companies, will result in a decrease in discounted cash flows used, and accordingly in the estimated fair value of the security. We obtain fixed maturity fair values from a variety of external independent pricing services, including brokers, with access to observable data including recent trade information, if available. In certain circumstances in which an external price is not available for a Level 3 security, we will internally estimate its fair value. Our process for evaluation and selection of the fair values includes: • We follow a “pricing waterfall” policy, which establishes the pricing source preference for a particular security or security type. The order of preference is based on our evaluation of the valuation methods used, the source’s knowledge of the instrument and the reliability of the prices we have received from the source in the past. Our valuation policy dictates that fair values are initially sought from third party pricing services. If our review of the prices received from our preferred source indicates an inaccurate price, we will use an alternative source within the waterfall and document the decision. In the event that fair values are not available from one of our external pricing services or upon review of the fair values provided it is determined that they may not be reflective of market conditions, those securities are submitted to brokers familiar with the security to obtain non-binding price quotes. Broker quotes tend to be used in limited circumstances such as for newly issued, private placement corporate bonds and other instruments that are not widely traded. For those securities for which an externally provided fair value is not available, we use cash flow modeling techniques to estimate fair value. • We evaluate third party pricing source estimation methodologies to assess whether they will provide a fair value that approximates a market exit price. • We perform an overall analysis of portfolio fair value movement against general movements in interest rates and spreads. • We compare period-to-period price trends to detect unexpected price fluctuation based on our knowledge of the market and the particular instrument. As fluctuations are noted, we will perform further research that may include discussions with the original pricing source or other external sources to ensure we are in agreement with the valuation. • We compare prices between different pricing sources for unusual disparity. • We meet at least quarterly with our Investment Committee, the group that oversees our valuation process, to discuss valuation practices and observations during the pricing process. Equity securities: Level 1 equity securities consist of mutual funds that are actively traded, allowing us to use current market prices as an estimate of their fair value. Level 2 equity securities consist of non-redeemable preferred stock. Estimated fair value for the non-redeemable preferred stock is obtained from external pricing sources using a matrix pricing approach. Level 3 equity securities consist of non-redeemable preferred stock for which fair value estimates are based on the value of comparable securities that are actively traded. Increases in spreads used to value comparable companies, will result in a decrease in discounted cash flows used, and accordingly in the estimated fair value of the security. In the case that external pricing services are used for certain Level 1 and Level 2 equity securities, our review process is consistent with the process used to determine the fair value of fixed maturities discussed above. Mortgage loans: Mortgage loans are not measured at fair value on a recurring basis. Mortgage loans are a Level 3 measurement as there is no current market for the loans. The fair value of our mortgage loans is estimated internally using a matrix pricing approach. Along with specific loan terms, two key management assumptions are required including the risk rating of the loan (our current rating system is A-highest quality, B-moderate quality, C-low quality, W-watch or F-foreclosure) and estimated spreads for new loans over the U.S. Treasury yield curve. Spreads are updated quarterly and loans are reviewed and rated annually with quarterly adjustments should significant changes occur. Our determination of each loan’s risk rating as well as selection of the credit spread requires significant judgment. A higher risk rating, as well as an increase in spreads, would result in a decrease in discounted cash flows used, and accordingly the fair value of the loan. Policy loans: Policy loans are not measured at fair value on a recurring basis. Policy loans are a Level 3 measurement as there is no current market since they are specifically tied to the underlying insurance policy. The loans are relatively risk free as they cannot exceed the cash surrender value of the insurance policy. Fair values are estimated by discounting expected cash flows using a risk-free interest rate based on the U.S. Treasury curve. An increase in the risk-free interest rate would result in a decrease in discounted cash flows used, and accordingly the fair value of the loan. Other investments: Level 2 other investments measured at fair value on a recurring basis include call options with fair values based on counterparty market prices adjusted for a credit component of the counterparty, net of collateral received. Level 3 other investments, which are not measured at fair value on a recurring basis, include common stock issued by the FHLB, with estimated fair value based on the current redemption value of the stock, and a promissory note that is priced internally using a discounted cash flow based on our assessment of the credit risk of the borrower. Cash, cash equivalents and short-term investments: Level 1 cash, cash equivalents and short-term investments are highly liquid instruments for which historical cost approximates fair value. Reinsurance recoverable: Level 2 reinsurance recoverable includes embedded derivatives in our modified coinsurance contracts under which we cede or assume business. Fair values of these embedded derivatives are based on the difference between the fair value and the cost basis of the underlying fixed maturities, which are valued consistent with the discussion of fixed maturities above. Assets held in separate accounts: Level 1 assets held in separate accounts consist of mutual funds that are actively traded, allowing us to use current market prices as an estimate of their fair value. Future policy benefits, supplementary contracts without life contingencies and advance premiums and other deposits : Level 3 policy-related financial instruments of investment-type contracts are those not involving significant mortality or morbidity risks. No active market exists for these contracts and they are not measured at fair value on a recurring basis. Fair values for our insurance contracts, other than investment-type contracts, are not required to be disclosed. Fair values for our investment-type contracts with expected maturities, including deferred annuities, funding agreements and supplementary contracts, are determined using discounted cash flow valuation techniques based on current interest rates adjusted to reflect our credit risk and an additional provision for adverse deviation. For certain deposit liabilities with no defined maturities and no surrender charges, including pension-related deposit administration funds, advance premiums and other deposits, fair value is the account value or amount payable on demand. Significant judgment is required in selecting the assumptions used to estimate the fair values of these financial instruments. For contracts with known maturities, increases in current rates will result in a decrease in discounted cash flows and a decrease in the estimated fair value of the policy obligation. Certain annuity contracts include embedded derivatives that are measured at fair value on a recurring basis. These embedded derivatives are a Level 3 measurement. The fair value of the embedded derivatives is based on the discounted excess of projected account values (including a risk margin) over projected guaranteed account values. The key unobservable inputs required in the projection of future values that require management judgment include the risk margin as well as the credit risk of our company. Should the risk margin increase or the credit risk decrease, the discounted cash flows and the estimated fair value of the obligation will increase. Long-term debt: Long-term debt is not measured at fair value on a recurring basis. Long-term debt is a Level 3 measurement. The fair value of our outstanding debt is estimated using a discounted cash flow method based on the market’s assessment or our current incremental borrowing rate for similar types of borrowing arrangements adjusted, as needed, to reflect our credit risk. Our selection of the credit spread requires significant judgment. A decrease in the spread will increase the estimated fair value of the outstanding debt. Other liabilities: Level 2 other liabilities include the embedded derivatives in our modified coinsurance contracts under which we cede business. Fair values for the embedded derivatives are based on the difference between the fair value and the cost basis of the underlying fixed maturities. Liabilities related to separate accounts: Separate account liabilities are not measured at fair value on a recurring basis. Level 3 separate account liabilities’ fair value is based on the cash surrender value of the underlying contract, which is the cost we would incur to extinguish the liability. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels March 31, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,515,151 $ 30,530 $ 3,545,681 Residential mortgage-backed securities — 553,544 — 553,544 Commercial mortgage-backed securities — 701,263 92,013 793,276 Other asset-backed securities — 801,654 12,638 814,292 United States Government and agencies 8,961 14,251 — 23,212 States and political subdivisions — 1,516,907 — 1,516,907 Total fixed maturities 8,961 7,102,770 135,181 7,246,912 Non-redeemable preferred stocks — 90,877 7,325 98,202 Common stocks (1) 5,218 — — 5,218 Other investments — 12,760 — 12,760 Cash, cash equivalents and short-term investments 43,728 — — 43,728 Reinsurance recoverable — 1,069 — 1,069 Assets held in separate accounts 638,751 — — 638,751 Total assets $ 696,658 $ 7,207,476 $ 142,506 $ 8,046,640 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 28,720 $ 28,720 Other liabilities — 154 — 154 Total liabilities $ — $ 154 $ 28,720 $ 28,874 (1) During 2018, we invested in a private equity fund totaling $0.5 million measured at fair value using net asset value (NAV) per share as a practical expedient, which have not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $9.5 million at March 31, 2018. The investment is not currently eligible for redemption. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,654,671 $ 33,600 $ 3,688,271 Residential mortgage-backed securities — 507,157 9,124 516,281 Commercial mortgage-backed securities — 619,606 85,701 705,307 Other asset-backed securities — 780,022 53,480 833,502 United States Government and agencies 9,078 15,827 — 24,905 States and political subdivisions — 1,523,701 — 1,523,701 Total fixed maturities 9,078 7,100,984 181,905 7,291,967 Non-redeemable preferred stocks — 92,425 7,407 99,832 Common stocks 4,313 — — 4,313 Other investments — 14,824 — 14,824 Cash, cash equivalents and short-term investments 69,703 — — 69,703 Reinsurance recoverable — 2,125 — 2,125 Assets held in separate accounts 651,963 — — 651,963 Total assets $ 735,057 $ 7,210,358 $ 189,312 $ 8,134,727 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 27,774 $ 27,774 Other liabilities — 268 — 268 Total liabilities $ — $ 268 $ 27,774 $ 28,042 Level 3 Assets by Valuation Source - Recurring Basis March 31, 2018 Third-party vendors Priced Total (Dollars in thousands) Corporate securities $ 2,407 $ 28,123 $ 30,530 Commercial mortgage-backed securities 92,013 — 92,013 Other asset-backed securities 8,263 4,375 12,638 Non-redeemable preferred stocks — 7,325 7,325 Total assets $ 102,683 $ 39,823 $ 142,506 Percent of total 72.1 % 27.9 % 100.0 % December 31, 2017 Third-party vendors Priced internally Total (Dollars in thousands) Corporate securities $ 4,555 $ 29,045 $ 33,600 Residential mortgage-backed securities 9,124 — 9,124 Commercial mortgage-backed securities 85,701 — 85,701 Other asset-backed securities 47,080 6,400 53,480 Non-redeemable preferred stocks — 7,407 7,407 Total assets $ 146,460 $ 42,852 $ 189,312 Percent of total 77.4 % 22.6 % 100.0 % Quantitative Information about Level 3 Fair Value Measurements - Recurring Basis March 31, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 26,744 Discounted cash flow Credit spread 1.04% - 5.75% (3.75%) Commercial mortgage-backed 70,138 Discounted cash flow Credit spread 1.40% - 4.10% (2.57%) Other asset-backed securities 5,013 Discounted cash flow Credit spread 1.55% - 1.95% (1.77%) Non-redeemable preferred stocks 7,325 Discounted cash flow Credit spread 3.47% (3.47%) Total assets $ 109,220 Liabilities Future policy benefits - indexed product embedded derivatives $ 28,720 Discounted cash flow Credit risk Risk margin 0.65% - 1.70% (1.10%) 0.15% - 0.40% (0.25%) December 31, 2017 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 27,682 Discounted cash flow Credit spread 0.91% - 6.20% (4.17%) Commercial mortgage-backed 72,224 Discounted cash flow Credit spread 1.40% - 4.10% (2.50%) Non-redeemable preferred stocks 7,407 Discounted cash flow Credit spread 2.94% (2.94%) Total assets $ 107,313 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 Discounted cash flow Credit risk Risk margin 0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%) The tables above exclude certain securities with the fair value based on non-binding broker quotes for which we could not reasonably obtain the quantitative unobservable inputs. Level 3 Financial Instruments Changes in Fair Value - Recurring Basis March 31, 2018 Realized and unrealized gains (losses), net Balance, December 31, 2017 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, March 31, 2018 (Dollars in thousands) Assets Corporate securities $ 33,600 $ — $ (1,091 ) $ — $ 30 $ — $ (2,000 ) $ (8 ) $ 30,531 Residential mortgage-backed securities 9,124 — — — — — (9,124 ) — — Commercial mortgage-backed securities 85,701 21,875 (227 ) — (1,838 ) — (13,477 ) (22 ) 92,012 Other asset-backed securities 53,480 8,250 (2,025 ) — 13 — (47,080 ) — 12,638 Non-redeemable preferred stocks 7,407 — — — (82 ) — — — 7,325 Total assets $ 189,312 $ 30,125 $ (3,343 ) $ — $ (1,877 ) $ — $ (71,681 ) $ (30 ) $ 142,506 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 $ 2,254 $ (942 ) $ (366 ) $ — $ — $ — $ — $ 28,720 March 31, 2017 Realized and unrealized gains (losses), net Balance, December 31, 2016 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, March 31, 2017 (Dollars in thousands) Assets Corporate securities $ 59,119 $ — $ (1,298 ) $ — $ (705 ) $ 4,408 $ (18,561 ) $ (10 ) $ 42,953 Residential mortgage-backed securities — 15,307 — — (1 ) — — 1 15,307 Commercial mortgage-backed securities 81,434 — (211 ) — 919 — (14,544 ) (22 ) 67,576 Other asset-backed securities 54,368 12,944 (3,022 ) — 193 7,964 (13,184 ) (10 ) 59,253 Non-redeemable preferred stocks 7,411 — — — 230 — — — 7,641 Total assets $ 202,332 $ 28,251 $ (4,531 ) $ — $ 636 $ 12,372 $ (46,289 ) $ (41 ) $ 192,730 Liabilities Future policy benefits - indexed product embedded derivatives $ 15,778 $ 911 $ (318 ) $ 2,216 $ — $ — $ — $ — $ 18,587 (1) Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above. Valuation of our Financial Instruments Not Reported at Fair Value by Hierarchy Levels March 31, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Mortgage loans $ — $ — $ 972,107 $ 972,107 Policy loans — — 232,674 232,674 Other investments — — 33,280 33,280 Total assets $ — $ — $ 1,238,061 $ 1,238,061 Liabilities Future policy benefits $ — $ — $ 4,113,534 $ 4,113,534 Supplementary contracts without life contingencies — — 315,625 315,625 Advance premiums and other deposits — — 260,967 260,967 Long-term debt — — 76,388 76,388 Liabilities related to separate accounts — — 636,666 636,666 Total liabilities $ — $ — $ 5,403,180 $ 5,403,180 December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Mortgage loans $ — $ — $ 989,503 $ 989,503 Policy loans — — 236,223 236,223 Other investments 28,619 28,619 Total assets $ — $ — $ 1,254,345 $ 1,254,345 Liabilities Future policy benefits $ — $ — $ 4,119,880 $ 4,119,880 Supplementary contracts without life contingencies — — 327,151 327,151 Advance premiums and other deposits — — 259,099 259,099 Long-term debt — — 78,628 78,628 Liabilities related to separate accounts — — 649,610 649,610 Total liabilities $ — $ — $ 5,434,368 $ 5,434,368 Level 3 Financial Instruments Measured at Fair Value on a Nonrecurring Basis Certain assets are measured at fair value on a nonrecurring basis, generally mortgage loans or real estate that have been deemed to be impaired during the reporting period. There were no mortgage loans or real estate impaired to fair value during the three months ended March 31, 2017 or March 31, 2018 .

Defined Benefit Plan

Defined Benefit Plan	3 Months Ended
	Mar. 31, 2018
Defined Benefit Plan [Abstract]
Defined Benefit Plan	Defined Benefit Plan We participate with affiliates and an unaffiliated organization in defined benefit pension plans, including a multiemployer plan. Our share of net periodic pension cost for the plans is recorded as expense in our consolidated statements of operations. Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Multiemployer Plan Three months ended March 31, 2018 2017 (Dollars in thousands) Service cost $ 1,493 $ 1,388 Interest cost 3,411 3,531 Expected return on assets (5,562 ) (4,796 ) Amortization of prior service cost 11 33 Amortization of actuarial loss 3,127 2,530 Net periodic pension cost $ 2,480 $ 2,686 FBL Financial Group, Inc. share of net periodic pension costs $ 760 $ 851 Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Other Plans Three months ended March 31, 2018 2017 (Dollars in thousands) Service cost $ 135 $ 109 Interest cost 240 251 Amortization of actuarial loss 338 293 Net periodic pension cost $ 713 $ 653 FBL Financial Group, Inc. share of net periodic pension costs $ 418 $ 388

Income Taxes Level 1 (Notes)

Income Taxes Level 1 (Notes)	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Tax	Income Taxes The Tax Act made broad changes to the U.S. tax code impacting our companies, including reducing the federal corporate tax rate from 35% to 21% and numerous base-broadening provisions. We recorded a provisional estimate of the impact of the Tax Act on our deferred tax assets and liabilities as of December 31, 2017. As of March 31, 2018, little guidance regarding the Tax Act has been issued and a number of the Tax Act’s provisions still contain some level of uncertainty. During the quarter ended March 31, 2018, our income tax provisions and deferred income taxes reflect the lower corporate tax rate and the other provisions of the Tax Act, based on our current understanding of the legislation. Certain provisional estimates used in the determination of deferred tax assets and liabilities at December 31, 2017 have been updated, including the determination of the 8-year transition liability related to tax reserves. However, the adjustments to these estimates only affected the classification of items on the balance sheet and did not impact net income for the first quarter of 2018 or total equity as of March 31, 2018. As additional guidance and information is provided, these estimates will continue to be updated as needed.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Proceedings In the normal course of business, we may be involved in litigation in which damages are alleged that are substantially in excess of contractual policy benefits or certain other agreements. In recent years, companies in the life insurance and annuity business have faced litigation, including class action lawsuits, alleging improper product design, improper sales practices and similar claims. We are not aware of any claims threatened or pending against FBL Financial Group, Inc. or any of its subsidiaries for which a material loss is reasonably possible.

Stockholders Equity

Stockholders Equity	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note	Stockholders’ Equity Share Repurchases We periodically repurchase our Class A common stock under programs approved by our Board of Directors. These repurchase programs authorize us to make repurchases in the open market or through privately negotiated transactions, with the timing and terms of the purchases to be determined by management based on market conditions. Under these programs, we repurchased 99,312 shares for $6.8 million during the three months ended March 31, 2018 . No repurchases were made during the three months ended March 31, 2017 . Completion of the current program is dependent on market conditions and other factors. There is no guarantee as to the exact timing of any repurchases or the number of shares that we will repurchase. The share repurchase program may be modified or terminated at any time without prior notice. At March 31, 2018 , $50.0 million remains available for repurchase under the active repurchase program. Special Dividends In March 2018, the Board of Directors approved a special $1.50 per share cash dividend payable to Class A and Class B common shareholders totaling $37.3 million . In March 2017, the Board of Directors approved a special $1.50 per share cash dividend payable to Class A and Class B common shareholders totaling $37.4 million . Reconciliation of Outstanding Common Stock Class A Class B Total Shares Dollars Shares Dollars Shares Dollars (Dollars in thousands) Outstanding at January 1, 2017 24,882,542 $ 152,903 11,413 $ 72 24,893,955 $ 152,975 Issuance of common stock under compensation plans 24,005 339 — — 24,005 339 Outstanding at March 31, 2017 24,906,547 $ 153,242 11,413 $ 72 24,917,960 $ 153,314 Outstanding at January 1, 2018 24,919,113 $ 153,589 11,413 $ 72 24,930,526 $ 153,661 Issuance of common stock under compensation plans 6,762 218 — — 6,762 218 Purchase of common stock (99,312 ) (612 ) — — (99,312 ) (612 ) Outstanding at March 31, 2018 24,826,563 $ 153,195 11,413 $ 72 24,837,976 $ 153,267 Accumulated Other Comprehensive Income, Net of Tax and Other Offsets Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Balance at January 1, 2017 $ 156,963 $ 311 $ (7,719 ) $ 149,555 Other comprehensive income before reclassifications 14,834 660 — 15,494 Reclassification adjustments 368 — 181 549 Balance at March 31, 2017 $ 172,165 $ 971 $ (7,538 ) $ 165,598 Balance at January 1, 2018 $ 295,169 $ 537 $ (10,723 ) $ 284,983 Net unrealized gains on equity securities (2) (5,869 ) — — (5,869 ) Other comprehensive loss before reclassifications (95,937 ) 2,808 — (93,129 ) Reclassification adjustments (25 ) — 262 237 Balance at March 31, 2018 $ 193,338 $ 3,345 $ (10,461 ) $ 186,222 (1) Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information. (2) See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change. Accumulated Other Comprehensive Income Reclassification Adjustments Three months ended March 31, 2018 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital gains on sales of investments $ (83 ) $ — $ — $ (83 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 51 — — 51 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 331 331 Reclassifications before income taxes (32 ) — 331 299 Income taxes 7 — (69 ) (62 ) Reclassification adjustments $ (25 ) $ — $ 262 $ 237 Three months ended March 31, 2017 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital losses on sales of investments $ 403 $ — $ — $ 403 Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 163 — — 163 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 279 279 Reclassifications before income taxes 566 — 279 845 Income taxes (198 ) — (98 ) (296 ) Reclassification adjustments $ 368 $ — $ 181 $ 549 (1) See Note 2 to our consolidated financial statements for further information.

Earnings per Share

Earnings per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Earnings per Share Computation of Earnings per Common Share Three months ended March 31, 2018 2017 (Dollars in thousands, except per share data) Numerator: Net income attributable to FBL Financial Group, Inc. $ 23,631 $ 26,433 Less: Dividends on Series B preferred stock 38 38 Income available to common stockholders $ 23,593 $ 26,395 Denominator: Weighted average shares - basic 25,003,691 25,030,462 Effect of dilutive securities - stock-based compensation 15,818 21,914 Weighted average shares - diluted 25,019,509 25,052,376 Earnings per common share $ 0.94 $ 1.05 Earnings per common share - assuming dilution: $ 0.94 $ 1.05 There were no antidilutive stock options outstanding in either period presented.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2018
Segment Information [Abstract]
Segment Information	Segment Information We analyze operations by reviewing financial information regarding our primary products that are aggregated into the Annuity and Life Insurance product segments. In addition, our Corporate and Other segment includes various support operations, corporate capital and other product lines that are not currently underwritten by the Company. We use non-GAAP operating income (a measure of earnings not recognized under GAAP), in addition to net income, to measure our performance. Non-GAAP operating income, for the periods presented, consists of net income adjusted to exclude the initial impact of changes in federal statutory income tax rates and tax laws, realized gains and losses on investments, and the change in net unrealized gains and losses on derivatives and equity securities, which can fluctuate greatly from period to period. These fluctuations make it difficult to analyze core operating trends. In addition, for derivatives not designated as hedges, there is a mismatch between the valuation of the asset and liability when deriving net income (loss). Specifically, call options relating to our indexed business are one-year assets while the embedded derivatives in the indexed contracts represent the rights of the contract holder to receive index credits over the entire period the indexed products are expected to be in force. Non-GAAP operating income is not a measure used in financial statements prepared in accordance with GAAP, but is a common life insurance industry measure of performance. We use non-GAAP operating income for goal setting, determining short-term incentive compensation and evaluating performance on a basis comparable to that used by many in the investment community. We analyze our segment results based on pre-tax non-GAAP operating income. Accordingly, income taxes are not allocated to the segments. In addition, non-GAAP operating results are reported net of transactions between the segments. Adjustments to net income are net of amortization of unearned revenue reserves, deferred acquisition costs and value of insurance in force acquired, as well as changes in interest sensitive product reserves and income taxes attributable to these items. While not applicable for the periods reported herein, our non-GAAP operating income policy also calls for adjustments to net income relating to the following: • settlements or judgments arising from lawsuits, net of any recoveries from third parties, • the cumulative effect of changes in accounting principles and • discontinued operations. Reconciliation Between Net Income and Non-GAAP Operating Income Three months ended March 31, 2018 2017 (Dollars in thousands) Net income attributable to FBL Financial Group, Inc. $ 23,631 $ 26,433 Net income adjustments: Impact of the Tax Act (1) 1,069 — Net realized gains/losses on investments (2) (3) 2,424 554 Change in net unrealized gains/losses on derivatives (2) 509 1 Non-GAAP operating income $ 27,633 $ 26,988 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information. (2) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (3) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information. Financial Information Concerning our Operating Segments Three months ended March 31, 2018 2017 (Dollars in thousands) Pre-tax non-GAAP operating income: Annuity $ 16,582 $ 16,421 Life Insurance 10,897 13,749 Corporate and Other 1,881 4,162 Total pre-tax non-GAAP operating income 29,360 34,332 Income taxes on non-GAAP operating income (1,727 ) (7,344 ) Non-GAAP operating income $ 27,633 $ 26,988 Non-GAAP operating revenues: Annuity $ 57,435 $ 55,051 Life Insurance 107,727 104,143 Corporate and Other 24,111 23,666 189,273 182,860 Net realized gains/losses on investments (1) (2) (3,226 ) (481 ) Change in net unrealized gains/losses on derivatives (1) (3,872 ) (459 ) Consolidated revenues $ 182,175 $ 181,920 (1) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (2) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information. Interest expense is attributable to the Corporate and Other segment. Expenditures for long-lived assets were not significant during the periods presented above. Goodwill at March 31, 2018 and December 31, 2017 was allocated among the segments as follows: Annuity ( $3.9 million ) and Life Insurance ( $6.1 million ). Securities and indebtedness of related parties is attributable to the Life Insurance and Corporate and Other segments. The following chart provides the related equity income (loss) by segment. Equity Income (Loss) by Operating Segment Three months ended March 31, 2018 2017 (Dollars in thousands) Pre-tax equity income (loss): Life Insurance $ 695 $ 1,166 Corporate and Other (1,511 ) (1,624 ) (816 ) (458 ) Income taxes 3,740 3,689 Equity income, net of related taxes, included in non-GAAP operating income 2,924 3,231 LIHTC equity losses related to the enactment of the Tax Act (1) (1,069 ) — Equity income, net of related income taxes $ 1,855 $ 3,231 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information. Premiums collected, which is not a measure used in financial statements prepared according to GAAP, includes premiums received on life insurance policies and deposits on annuities and universal life-type products. Premiums collected is a common life insurance industry measure of agent productivity. Net premiums collected totaled $169.7 million for the quarter ended March 31, 2018 and $169.9 million for the same period in 2017 . Under GAAP, premiums on whole life and term life policies are recognized as revenues over the premium-paying period and reported in the Life Insurance segment. The following chart provides a reconciliation of life insurance premiums collected to those reported in the GAAP financial statements. Reconciliation of Traditional Life Insurance Premiums, Net of Reinsurance Three months ended March 31, 2018 2017 (Dollars in thousands) Traditional and universal life insurance premiums collected $ 76,263 $ 73,573 Premiums collected on interest sensitive products (26,582 ) (24,715 ) Traditional life insurance premiums collected 49,681 48,858 Change in due premiums and other (184 ) (424 ) Traditional life insurance premiums as included in the Consolidated Statements of Operations $ 49,497 $ 48,434 There is no comparable GAAP financial measure for premiums collected on annuities and universal life-type products. GAAP revenues for those interest sensitive and variable products consist of various policy charges and fees assessed on those contracts, as summarized in the chart below. Interest Sensitive Product Charges by Segment Three months ended March 31, 2018 2017 (Dollars in thousands) Annuity Surrender charges and other $ 1,202 $ 1,135 Life Insurance Administration charges $ 4,046 $ 3,864 Cost of insurance charges 12,537 12,035 Surrender charges 681 525 Amortization of policy initiation fees 614 664 Total $ 17,878 $ 17,088 Corporate and Other Administration charges $ 1,316 $ 1,425 Cost of insurance charges 7,140 7,325 Surrender charges 23 52 Separate account charges 2,145 2,003 Amortization of policy initiation fees 394 173 Total $ 11,018 $ 10,978 Interest sensitive product charges as included in the Consolidated Statements of Operations $ 30,098 $ 29,201

Investment Operations (Tables)

Investment Operations (Tables)	3 Months Ended
	Mar. 31, 2018
Investment Operations [Abstract]
Available-for-sale Securities [Table Text Block]	Available-For-Sale Fixed Maturity Securities by Investment Category March 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,353,388 $ 224,254 $ (31,961 ) $ 3,545,681 $ 290 Residential mortgage-backed 527,971 31,012 (5,439 ) 553,544 594 Commercial mortgage-backed 784,999 22,428 (14,151 ) 793,276 — Other asset-backed 796,977 20,347 (3,032 ) 814,292 3,350 United States Government and agencies 22,009 1,333 (130 ) 23,212 — States and political subdivisions 1,405,847 113,842 (2,782 ) 1,516,907 — Total fixed maturities $ 6,891,191 $ 413,216 $ (57,495 ) $ 7,246,912 $ 4,234 Available-For-Sale Fixed Maturity and Equity Securities by Investment Category December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Non-credit losses on other-than-temporary impairments (1) (Dollars in thousands) Fixed maturities: Corporate (2) $ 3,374,927 $ 329,299 $ (15,955 ) $ 3,688,271 $ (504 ) Residential mortgage-backed 483,671 35,890 (3,280 ) 516,281 339 Commercial mortgage-backed 674,076 34,464 (3,233 ) 705,307 — Other asset-backed 818,071 18,645 (3,214 ) 833,502 845 United States Government and agencies 23,378 1,606 (79 ) 24,905 — States and political subdivisions 1,383,127 141,813 (1,239 ) 1,523,701 — Total fixed maturities $ 6,757,250 $ 561,717 $ (27,000 ) $ 7,291,967 $ 680 Equity securities: Non-redeemable preferred stocks $ 92,951 $ 7,146 $ (265 ) $ 99,832 Common stocks 3,764 549 — 4,313 Total equity securities $ 96,715 $ 7,695 $ (265 ) $ 104,145 (1) Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for corporate, residential mortgage-backed, and other asset-backed securities at March 31, 2018 and residential mortgage-backed and other asset-backed securities at December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities. (2) Corporate securities include hybrid preferred securities with a fair value of $16.8 million at March 31, 2018 and $17.5 million at December 31, 2017 . Corporate securities also include redeemable preferred stock with a fair value of $22.0 million at March 31, 2018 and $21.7 million at December 31, 2017 .
Investments Classified by Contractual Maturity Date [Table Text Block]	Available-For-Sale Fixed Maturities by Maturity Date March 31, 2018 Amortized Cost Fair Value (Dollars in thousands) Due in one year or less $ 165,210 $ 167,953 Due after one year through five years 588,250 614,089 Due after five years through ten years 730,313 754,274 Due after ten years 3,297,471 3,549,484 4,781,244 5,085,800 Mortgage-backed and other asset-backed 2,109,947 2,161,112 Total fixed maturities $ 6,891,191 $ 7,246,912
Unrealized Gain (Loss) on Investments [Table Text Block]	Net Unrealized Gains on Investments in Accumulated Other Comprehensive Income March 31, December 31, (Dollars in thousands) Net unrealized appreciation on: Fixed maturities - available for sale $ 355,721 $ 534,718 Equity securities - available for sale — 7,430 355,721 542,148 Adjustments for assumed changes in amortization pattern of: Deferred acquisition costs (93,953 ) (147,173 ) Value of insurance in force acquired (11,716 ) (14,870 ) Unearned revenue reserve 8,318 12,705 Adjustments for assumed changes in policyholder liabilities (9,407 ) (18,499 ) Provision for deferred income taxes (52,280 ) (78,605 ) Net unrealized investment gains $ 196,683 $ 295,706
Schedule of Unrealized Loss on Investments [Table Text Block]	Fixed Maturity Securities with Unrealized Losses by Length of Time March 31, 2018 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 516,564 $ (13,180 ) $ 162,871 $ (18,781 ) $ 679,435 $ (31,961 ) 55.6 % Residential mortgage-backed 170,226 (4,091 ) 31,038 (1,348 ) 201,264 (5,439 ) 9.5 Commercial mortgage-backed 346,486 (12,199 ) 18,419 (1,952 ) 364,905 (14,151 ) 24.6 Other asset-backed 251,682 (1,633 ) 64,222 (1,399 ) 315,904 (3,032 ) 5.3 United States Government and agencies 5,106 (83 ) 2,324 (47 ) 7,430 (130 ) 0.2 States and political subdivisions 78,770 (1,276 ) 17,463 (1,506 ) 96,233 (2,782 ) 4.8 Total fixed maturities $ 1,368,834 $ (32,462 ) $ 296,337 $ (25,033 ) $ 1,665,171 $ (57,495 ) 100.0 % Fixed Maturity and Equity Securities with Unrealized Losses by Length of Time December 31, 2017 Less than one year One year or more Total Description of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Percent of Total (Dollars in thousands) Fixed maturities: Corporate $ 85,019 $ (1,261 ) $ 183,820 $ (14,694 ) $ 268,839 $ (15,955 ) 59.1 % Residential mortgage-backed 76,393 (1,757 ) 31,779 (1,523 ) 108,172 (3,280 ) 12.1 Commercial mortgage-backed 151,158 (2,078 ) 16,398 (1,155 ) 167,556 (3,233 ) 12.0 Other asset-backed 159,111 (2,006 ) 71,064 (1,208 ) 230,175 (3,214 ) 11.9 United States Government and agencies 5,698 (47 ) 1,864 (32 ) 7,562 (79 ) 0.3 States and political subdivisions 5,904 (96 ) 20,505 (1,143 ) 26,409 (1,239 ) 4.6 Total fixed maturities $ 483,283 $ (7,245 ) $ 325,430 $ (19,755 ) $ 808,713 $ (27,000 ) 100.0 % Equity securities: Non-redeemable preferred stocks $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 ) Total equity securities $ 2,819 $ (71 ) $ 4,807 $ (194 ) $ 7,626 $ (265 )
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]	Credit Loss Component of Other-Than-Temporary Impairments on Fixed Maturities Three months ended March 31, 2018 2017 (Dollars in thousands) Balance at beginning of period $ (12,392 ) $ (14,500 ) Reductions due to investments sold or paid down 271 349 Reduction for credit loss that no longer has a portion of the OTTI loss recognized in other comprehensive income 2,529 587 Balance at end of period $ (9,592 ) $ (13,564 )
Realized Gain (Loss) on Investments [Table Text Block]	Realized Gains (Losses) - Recorded in Income Three months ended March 31, 2018 2017 (Dollars in thousands) Realized gains (losses) on sales of investments Fixed maturities: Gross gains $ 83 $ 124 Gross losses — (527 ) Other long-term investments (13 ) — 70 (403 ) Net unrealized losses recognized during the period on equity securities held at the end of the period (1) (1,817 ) — Net realized losses (1,747 ) (403 ) Impairment losses recognized in earnings: Other credit-related (2) (1,295 ) (66 ) Net realized losses on investments recorded in income $ (3,042 ) $ (469 ) (1) See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter. (2) Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets.
Mortgage Loans by Colateral Type [Table Text Block]	Mortgage Loans by Collateral Type March 31, 2018 December 31, 2017 Collateral Type Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) Office $ 413,120 42.6 % $ 410,090 42.2 % Retail 288,683 29.8 292,257 30.1 Industrial 205,107 21.2 207,180 21.3 Other 61,754 6.4 62,285 6.4 Total $ 968,664 100.0 % $ 971,812 100.0 %
Mortgage Loans by Geograpic Location [Table Text Block]	Mortgage Loans by Geographic Location within the United States March 31, 2018 December 31, 2017 Region of the United States Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) South Atlantic $ 295,318 30.5 % $ 296,947 30.5 % Pacific 144,935 14.9 146,320 15.0 West North Central 125,609 13.0 127,096 13.1 Mountain 104,298 10.8 105,627 10.9 East North Central 90,764 9.4 91,971 9.5 West South Central 90,511 9.3 85,566 8.8 East South Central 66,661 6.9 67,228 6.9 New England 34,665 3.6 35,005 3.6 Middle Atlantic 15,903 1.6 16,052 1.7 Total $ 968,664 100.0 % $ 971,812 100.0 %
Mortgage Loans by loan to value ratio [Table Text Block]	Mortgage Loans by Loan-to-Value Ratio March 31, 2018 December 31, 2017 Loan-to-Value Ratio Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 0% - 50% $ 360,416 37.2 % $ 334,037 34.4 % 51% - 60% 236,382 24.5 258,359 26.6 61% - 70% 301,469 31.1 297,404 30.6 71% - 80% 51,621 5.3 63,116 6.5 81% - 90% 18,776 1.9 18,896 1.9 Total $ 968,664 100.0 % $ 971,812 100.0 %
Mortgage loans by year of origination [Table Text Block]	Mortgage Loans by Year of Origination March 31, 2018 December 31, 2017 Year of Origination Carrying Value Percent of Total Carrying Value Percent of Total (Dollars in thousands) 2018 $ 5,800 0.5 % $ — — % 2017 212,785 22.0 214,365 22.1 2016 153,147 15.8 154,359 15.9 2015 143,457 14.8 144,890 14.9 2014 77,119 8.0 77,866 8.0 2013 and prior 376,356 38.9 380,332 39.1 Total $ 968,664 100.0 % $ 971,812 100.0 %
Impaired Financing Receivables [Table Text Block]	Impaired Mortgage Loans March 31, 2018 December 31, 2017 (Dollars in thousands) Unpaid principal balance $ 18,927 $ 19,027 Less: Related allowance (447 ) (497 ) Carrying value of impaired mortgage loans $ 18,480 $ 18,530
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Allowance on Mortgage Loans Three months ended March 31, 2018 2017 (Dollars in thousands) Balance at beginning of period $ 497 $ 713 Recoveries (50 ) (50 ) Balance at end of period $ 447 $ 663
Affordable Housing Program [Text Block]	The carrying value of these investments totaled $79.2 million at March 31, 2018 and $82.4 million at December 31, 2017 . Equity income from these investments as reported in our consolidated statement of operations is as follows: LIHTC Equity Income (Loss), Net of Related Income Taxes Three months ended March 31, 2018 2017 (Dollars in thousands) Equity losses from LIHTC $ (3,005 ) $ (1,805 ) Income tax benefits: Tax benefits from equity losses 631 632 Investment tax credits 3,569 3,529 Equity income from LIHTC, net of related income tax benefits $ 1,195 $ 2,356 At March 31, 2018 , we had committed to provide additional funds for limited partnerships and limited liability companies in which we invest. The amounts of these unfunded commitments totaled $47.5 million , including $1.7 million for LIHTC commitments, which are summarized by year in the following table. LIHTC Commitments by Year March 31, 2018 (Dollars in thousands) 2018 $ 810 2019 46 2020-2025 811 Total $ 1,667
Schedule of Variable Interest Entities [Table Text Block]	VIE Investments by Category March 31, 2018 December 31, 2017 Carrying Value Maximum Exposure to Loss Carrying Value Maximum Exposure to Loss (Dollars in thousands) LIHTC $ 79,176 $ 80,843 $ 82,417 $ 84,103 Investment companies 28,418 63,054 25,335 62,372 Real estate limited partnerships 9,151 20,129 8,589 20,590 Other 728 955 1,182 1,488 Total $ 117,473 $ 164,981 $ 117,523 $ 168,553
Schedule of Derivative Instruments [Table Text Block]	Derivatives Instruments by Type March 31, 2018 December 31, 2017 (Dollars in thousands) Assets Freestanding derivatives: Call options (reported in other investments) $ 12,760 $ 14,824 Embedded derivatives: Modified coinsurance (reported in reinsurance recoverable) 1,069 2,125 Interest-only security (reported in fixed maturities) 1,852 2,096 Total assets $ 15,681 $ 19,045 Liabilities Embedded derivatives: Indexed annuity and universal life products (reported in liability for future policy benefits) $ 28,720 $ 27,774 Modified coinsurance agreements (reported in other liabilities) 154 268 Total liabilities $ 28,874 $ 28,042 Derivative Income (Loss) Three months ended March 31, 2018 2017 (Dollars in thousands) Change in fair value of free standing derivatives: Call options $ (1,152 ) $ 2,365 Change in fair value of embedded derivatives: Modified coinsurance agreements (943 ) (1,410 ) Interest-only security (35 ) (21 ) Indexed annuity and universal life products 2,664 409 Total income from derivatives $ 534 $ 1,343

Fair Values (Tables)

Fair Values (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Values [Abstract]
Fair Value, by Balance Sheet Grouping [Table Text Block]	Fair Values and Carrying Values March 31, 2018 December 31, 2017 Carrying Value Fair Value Carrying Value Fair Value (Dollars in thousands) Assets Fixed maturities - available for sale $ 7,246,912 $ 7,246,912 $ 7,291,967 $ 7,291,967 Equity securities 103,920 103,920 104,145 104,145 Mortgage loans 968,664 972,107 971,812 989,503 Policy loans 193,413 232,674 191,398 236,223 Other investments 44,950 46,040 42,318 43,443 Cash, cash equivalents and short-term investments 43,728 43,728 69,703 69,703 Reinsurance recoverable 1,069 1,069 2,125 2,125 Assets held in separate accounts 638,751 638,751 651,963 651,963 Liabilities Future policy benefits $ 4,332,983 $ 4,142,254 $ 4,192,367 $ 4,147,654 Supplementary contracts without life contingencies 317,541 315,625 322,630 327,151 Advance premiums and other deposits 260,967 260,967 259,099 259,099 Long-term debt 97,000 76,388 97,000 78,628 Other liabilities 154 154 268 268 Liabilities related to separate accounts 638,751 636,666 651,963 649,610
Valuation of our Financial Instruments Measured on Recurring Basis by hierarchy levels [Table Text Block]	Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels March 31, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,515,151 $ 30,530 $ 3,545,681 Residential mortgage-backed securities — 553,544 — 553,544 Commercial mortgage-backed securities — 701,263 92,013 793,276 Other asset-backed securities — 801,654 12,638 814,292 United States Government and agencies 8,961 14,251 — 23,212 States and political subdivisions — 1,516,907 — 1,516,907 Total fixed maturities 8,961 7,102,770 135,181 7,246,912 Non-redeemable preferred stocks — 90,877 7,325 98,202 Common stocks (1) 5,218 — — 5,218 Other investments — 12,760 — 12,760 Cash, cash equivalents and short-term investments 43,728 — — 43,728 Reinsurance recoverable — 1,069 — 1,069 Assets held in separate accounts 638,751 — — 638,751 Total assets $ 696,658 $ 7,207,476 $ 142,506 $ 8,046,640 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 28,720 $ 28,720 Other liabilities — 154 — 154 Total liabilities $ — $ 154 $ 28,720 $ 28,874 (1) During 2018, we invested in a private equity fund totaling $0.5 million measured at fair value using net asset value (NAV) per share as a practical expedient, which have not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $9.5 million at March 31, 2018. The investment is not currently eligible for redemption. Valuation of our Financial Instruments Measured on a Recurring Basis by Hierarchy Levels December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Fixed maturities: Corporate securities $ — $ 3,654,671 $ 33,600 $ 3,688,271 Residential mortgage-backed securities — 507,157 9,124 516,281 Commercial mortgage-backed securities — 619,606 85,701 705,307 Other asset-backed securities — 780,022 53,480 833,502 United States Government and agencies 9,078 15,827 — 24,905 States and political subdivisions — 1,523,701 — 1,523,701 Total fixed maturities 9,078 7,100,984 181,905 7,291,967 Non-redeemable preferred stocks — 92,425 7,407 99,832 Common stocks 4,313 — — 4,313 Other investments — 14,824 — 14,824 Cash, cash equivalents and short-term investments 69,703 — — 69,703 Reinsurance recoverable — 2,125 — 2,125 Assets held in separate accounts 651,963 — — 651,963 Total assets $ 735,057 $ 7,210,358 $ 189,312 $ 8,134,727 Liabilities Future policy benefits - indexed product embedded derivatives $ — $ — $ 27,774 $ 27,774 Other liabilities — 268 — 268 Total liabilities $ — $ 268 $ 27,774 $ 28,042
Level 3 fixed maturities on Measurement on Recurring Basis by Valuation Technique [Table Text Block]	Level 3 Assets by Valuation Source - Recurring Basis March 31, 2018 Third-party vendors Priced Total (Dollars in thousands) Corporate securities $ 2,407 $ 28,123 $ 30,530 Commercial mortgage-backed securities 92,013 — 92,013 Other asset-backed securities 8,263 4,375 12,638 Non-redeemable preferred stocks — 7,325 7,325 Total assets $ 102,683 $ 39,823 $ 142,506 Percent of total 72.1 % 27.9 % 100.0 % December 31, 2017 Third-party vendors Priced internally Total (Dollars in thousands) Corporate securities $ 4,555 $ 29,045 $ 33,600 Residential mortgage-backed securities 9,124 — 9,124 Commercial mortgage-backed securities 85,701 — 85,701 Other asset-backed securities 47,080 6,400 53,480 Non-redeemable preferred stocks — 7,407 7,407 Total assets $ 146,460 $ 42,852 $ 189,312 Percent of total 77.4 % 22.6 % 100.0 %
Quantitative Information about Level 3 Fair Value Measurement Inputs [Text Block]	Quantitative Information about Level 3 Fair Value Measurements - Recurring Basis March 31, 2018 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 26,744 Discounted cash flow Credit spread 1.04% - 5.75% (3.75%) Commercial mortgage-backed 70,138 Discounted cash flow Credit spread 1.40% - 4.10% (2.57%) Other asset-backed securities 5,013 Discounted cash flow Credit spread 1.55% - 1.95% (1.77%) Non-redeemable preferred stocks 7,325 Discounted cash flow Credit spread 3.47% (3.47%) Total assets $ 109,220 Liabilities Future policy benefits - indexed product embedded derivatives $ 28,720 Discounted cash flow Credit risk Risk margin 0.65% - 1.70% (1.10%) 0.15% - 0.40% (0.25%) December 31, 2017 Fair Value Valuation Technique Unobservable Input Range (Weighted Average) (Dollars in thousands) Assets Corporate securities $ 27,682 Discounted cash flow Credit spread 0.91% - 6.20% (4.17%) Commercial mortgage-backed 72,224 Discounted cash flow Credit spread 1.40% - 4.10% (2.50%) Non-redeemable preferred stocks 7,407 Discounted cash flow Credit spread 2.94% (2.94%) Total assets $ 107,313 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 Discounted cash flow Credit risk Risk margin 0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%)
Level 3 Financial Instruments Changes in Fair Value [Table Text Block]	Level 3 Financial Instruments Changes in Fair Value - Recurring Basis March 31, 2018 Realized and unrealized gains (losses), net Balance, December 31, 2017 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, March 31, 2018 (Dollars in thousands) Assets Corporate securities $ 33,600 $ — $ (1,091 ) $ — $ 30 $ — $ (2,000 ) $ (8 ) $ 30,531 Residential mortgage-backed securities 9,124 — — — — — (9,124 ) — — Commercial mortgage-backed securities 85,701 21,875 (227 ) — (1,838 ) — (13,477 ) (22 ) 92,012 Other asset-backed securities 53,480 8,250 (2,025 ) — 13 — (47,080 ) — 12,638 Non-redeemable preferred stocks 7,407 — — — (82 ) — — — 7,325 Total assets $ 189,312 $ 30,125 $ (3,343 ) $ — $ (1,877 ) $ — $ (71,681 ) $ (30 ) $ 142,506 Liabilities Future policy benefits - indexed product embedded derivatives $ 27,774 $ 2,254 $ (942 ) $ (366 ) $ — $ — $ — $ — $ 28,720 March 31, 2017 Realized and unrealized gains (losses), net Balance, December 31, 2016 Purchases Disposals Included in net income Included in other compre-hensive income Transfers into Level 3 (1) Transfers out of Level 3 (1) Amort-ization included in net income Balance, March 31, 2017 (Dollars in thousands) Assets Corporate securities $ 59,119 $ — $ (1,298 ) $ — $ (705 ) $ 4,408 $ (18,561 ) $ (10 ) $ 42,953 Residential mortgage-backed securities — 15,307 — — (1 ) — — 1 15,307 Commercial mortgage-backed securities 81,434 — (211 ) — 919 — (14,544 ) (22 ) 67,576 Other asset-backed securities 54,368 12,944 (3,022 ) — 193 7,964 (13,184 ) (10 ) 59,253 Non-redeemable preferred stocks 7,411 — — — 230 — — — 7,641 Total assets $ 202,332 $ 28,251 $ (4,531 ) $ — $ 636 $ 12,372 $ (46,289 ) $ (41 ) $ 192,730 Liabilities Future policy benefits - indexed product embedded derivatives $ 15,778 $ 911 $ (318 ) $ 2,216 $ — $ — $ — $ — $ 18,587 (1) Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above.
Financial Instruments Not Reported at Value [Table Text Block]	Valuation of our Financial Instruments Not Reported at Fair Value by Hierarchy Levels March 31, 2018 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Mortgage loans $ — $ — $ 972,107 $ 972,107 Policy loans — — 232,674 232,674 Other investments — — 33,280 33,280 Total assets $ — $ — $ 1,238,061 $ 1,238,061 Liabilities Future policy benefits $ — $ — $ 4,113,534 $ 4,113,534 Supplementary contracts without life contingencies — — 315,625 315,625 Advance premiums and other deposits — — 260,967 260,967 Long-term debt — — 76,388 76,388 Liabilities related to separate accounts — — 636,666 636,666 Total liabilities $ — $ — $ 5,403,180 $ 5,403,180 December 31, 2017 Quoted prices in active markets for identical assets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Total (Dollars in thousands) Assets Mortgage loans $ — $ — $ 989,503 $ 989,503 Policy loans — — 236,223 236,223 Other investments 28,619 28,619 Total assets $ — $ — $ 1,254,345 $ 1,254,345 Liabilities Future policy benefits $ — $ — $ 4,119,880 $ 4,119,880 Supplementary contracts without life contingencies — — 327,151 327,151 Advance premiums and other deposits — — 259,099 259,099 Long-term debt — — 78,628 78,628 Liabilities related to separate accounts — — 649,610 649,610 Total liabilities $ — $ — $ 5,434,368 $ 5,434,368

Defined Benefit Plan (Tables)

Defined Benefit Plan (Tables)	3 Months Ended
	Mar. 31, 2018
Defined Benefit Plan [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Multiemployer Plan Three months ended March 31, 2018 2017 (Dollars in thousands) Service cost $ 1,493 $ 1,388 Interest cost 3,411 3,531 Expected return on assets (5,562 ) (4,796 ) Amortization of prior service cost 11 33 Amortization of actuarial loss 3,127 2,530 Net periodic pension cost $ 2,480 $ 2,686 FBL Financial Group, Inc. share of net periodic pension costs $ 760 $ 851 Components of Net Periodic Pension Cost for FBL and Affiliates Combined - Other Plans Three months ended March 31, 2018 2017 (Dollars in thousands) Service cost $ 135 $ 109 Interest cost 240 251 Amortization of actuarial loss 338 293 Net periodic pension cost $ 713 $ 653 FBL Financial Group, Inc. share of net periodic pension costs $ 418 $ 388

Stockholders Equity (Tables)

Stockholders Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class [Table Text Block]	Reconciliation of Outstanding Common Stock Class A Class B Total Shares Dollars Shares Dollars Shares Dollars (Dollars in thousands) Outstanding at January 1, 2017 24,882,542 $ 152,903 11,413 $ 72 24,893,955 $ 152,975 Issuance of common stock under compensation plans 24,005 339 — — 24,005 339 Outstanding at March 31, 2017 24,906,547 $ 153,242 11,413 $ 72 24,917,960 $ 153,314 Outstanding at January 1, 2018 24,919,113 $ 153,589 11,413 $ 72 24,930,526 $ 153,661 Issuance of common stock under compensation plans 6,762 218 — — 6,762 218 Purchase of common stock (99,312 ) (612 ) — — (99,312 ) (612 ) Outstanding at March 31, 2018 24,826,563 $ 153,195 11,413 $ 72 24,837,976 $ 153,267
Schedule of Comprehensive Income (Loss) [Table Text Block]	Accumulated Other Comprehensive Income, Net of Tax and Other Offsets Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Balance at January 1, 2017 $ 156,963 $ 311 $ (7,719 ) $ 149,555 Other comprehensive income before reclassifications 14,834 660 — 15,494 Reclassification adjustments 368 — 181 549 Balance at March 31, 2017 $ 172,165 $ 971 $ (7,538 ) $ 165,598 Balance at January 1, 2018 $ 295,169 $ 537 $ (10,723 ) $ 284,983 Net unrealized gains on equity securities (2) (5,869 ) — — (5,869 ) Other comprehensive loss before reclassifications (95,937 ) 2,808 — (93,129 ) Reclassification adjustments (25 ) — 262 237 Balance at March 31, 2018 $ 193,338 $ 3,345 $ (10,461 ) $ 186,222 (1) Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information. (2) See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.
Disclosure of Reclassification Amount [Text Block]	Accumulated Other Comprehensive Income Reclassification Adjustments Three months ended March 31, 2018 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital gains on sales of investments $ (83 ) $ — $ — $ (83 ) Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 51 — — 51 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 331 331 Reclassifications before income taxes (32 ) — 331 299 Income taxes 7 — (69 ) (62 ) Reclassification adjustments $ (25 ) $ — $ 262 $ 237 Three months ended March 31, 2017 Unrealized Net Investment Gains (Losses) on Available For Sale Securities (1) Accumulated Non-Credit Impairment Losses (1) Underfunded Status of Postretirement Benefit Plans Total (Dollars in thousands) Realized capital losses on sales of investments $ 403 $ — $ — $ 403 Adjustments for assumed changes in deferred acquisition costs, value of insurance in force acquired, unearned revenue reserve and policyholder liabilities 163 — — 163 Other expenses - change in unrecognized postretirement items: Net actuarial loss — — 279 279 Reclassifications before income taxes 566 — 279 845 Income taxes (198 ) — (98 ) (296 ) Reclassification adjustments $ 368 $ — $ 181 $ 549 (1) See Note 2 to our consolidated financial statements for further information.

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Computation of Earnings per Common Share Three months ended March 31, 2018 2017 (Dollars in thousands, except per share data) Numerator: Net income attributable to FBL Financial Group, Inc. $ 23,631 $ 26,433 Less: Dividends on Series B preferred stock 38 38 Income available to common stockholders $ 23,593 $ 26,395 Denominator: Weighted average shares - basic 25,003,691 25,030,462 Effect of dilutive securities - stock-based compensation 15,818 21,914 Weighted average shares - diluted 25,019,509 25,052,376 Earnings per common share $ 0.94 $ 1.05 Earnings per common share - assuming dilution: $ 0.94 $ 1.05 There were no antidilutive stock options outstanding in either period presented.

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Information [Abstract]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	Reconciliation Between Net Income and Non-GAAP Operating Income Three months ended March 31, 2018 2017 (Dollars in thousands) Net income attributable to FBL Financial Group, Inc. $ 23,631 $ 26,433 Net income adjustments: Impact of the Tax Act (1) 1,069 — Net realized gains/losses on investments (2) (3) 2,424 554 Change in net unrealized gains/losses on derivatives (2) 509 1 Non-GAAP operating income $ 27,633 $ 26,988 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information. (2) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (3) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Financial Information Concerning our Operating Segments Three months ended March 31, 2018 2017 (Dollars in thousands) Pre-tax non-GAAP operating income: Annuity $ 16,582 $ 16,421 Life Insurance 10,897 13,749 Corporate and Other 1,881 4,162 Total pre-tax non-GAAP operating income 29,360 34,332 Income taxes on non-GAAP operating income (1,727 ) (7,344 ) Non-GAAP operating income $ 27,633 $ 26,988 Non-GAAP operating revenues: Annuity $ 57,435 $ 55,051 Life Insurance 107,727 104,143 Corporate and Other 24,111 23,666 189,273 182,860 Net realized gains/losses on investments (1) (2) (3,226 ) (481 ) Change in net unrealized gains/losses on derivatives (1) (3,872 ) (459 ) Consolidated revenues $ 182,175 $ 181,920 (1) Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items. (2) Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Equity Income (Loss) by Operating Segment Three months ended March 31, 2018 2017 (Dollars in thousands) Pre-tax equity income (loss): Life Insurance $ 695 $ 1,166 Corporate and Other (1,511 ) (1,624 ) (816 ) (458 ) Income taxes 3,740 3,689 Equity income, net of related taxes, included in non-GAAP operating income 2,924 3,231 LIHTC equity losses related to the enactment of the Tax Act (1) (1,069 ) — Equity income, net of related income taxes $ 1,855 $ 3,231 (1) Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information.
Reconciliation of Non-GAAP measures [Table Text Block]	Reconciliation of Traditional Life Insurance Premiums, Net of Reinsurance Three months ended March 31, 2018 2017 (Dollars in thousands) Traditional and universal life insurance premiums collected $ 76,263 $ 73,573 Premiums collected on interest sensitive products (26,582 ) (24,715 ) Traditional life insurance premiums collected 49,681 48,858 Change in due premiums and other (184 ) (424 ) Traditional life insurance premiums as included in the Consolidated Statements of Operations $ 49,497 $ 48,434 There is no comparable GAAP financial measure for premiums collected on annuities and universal life-type products. GAAP revenues for those interest sensitive and variable products consist of various policy charges and fees assessed on those contracts, as summarized in the chart below. Interest Sensitive Product Charges by Segment Three months ended March 31, 2018 2017 (Dollars in thousands) Annuity Surrender charges and other $ 1,202 $ 1,135 Life Insurance Administration charges $ 4,046 $ 3,864 Cost of insurance charges 12,537 12,035 Surrender charges 681 525 Amortization of policy initiation fees 614 664 Total $ 17,878 $ 17,088 Corporate and Other Administration charges $ 1,316 $ 1,425 Cost of insurance charges 7,140 7,325 Surrender charges 23 52 Separate account charges 2,145 2,003 Amortization of policy initiation fees 394 173 Total $ 11,018 $ 10,978 Interest sensitive product charges as included in the Consolidated Statements of Operations $ 30,098 $ 29,201

Significant Accounting Polici23

Significant Accounting Policies Recent accounting pronouncements (Details) - Accounting Standards Update 2016-01 [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)$ / shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income	$ 1,300
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share | $ / shares	$ 0.05
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share | $ / shares	$ 0.05
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 5,869

Investment Operations Available

Investment Operations Available-for-sale Securities (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis		$ 6,891,191	$ 6,757,250
Available-for-sale Equity Securities, Amortized Cost Basis		96,715	96,715
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis		6,891,191	6,757,250
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		413,216	561,717
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(57,495)	(27,000)
Available-for-sale Securities		7,246,912	7,291,967
Non-credit losses on other-than-temporary impairments	[1]	4,234	680
Corporate
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,353,388	3,374,927
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		224,254	329,299
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(31,961)	(15,955)
Available-for-sale Securities	[2]	3,545,681	3,688,271
Non-credit losses on other-than-temporary impairments		290	(504)
Hybrid preferred securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities		16,800	17,500
Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities		22,000	21,700
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		527,971	483,671
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		31,012	35,890
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(5,439)	(3,280)
Available-for-sale Securities		553,544	516,281
Non-credit losses on other-than-temporary impairments		594	339
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		784,999	674,076
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		22,428	34,464
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(14,151)	(3,233)
Available-for-sale Securities		793,276	705,307
Non-credit losses on other-than-temporary impairments		0	0
Other asset backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		796,977	818,071
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		20,347	18,645
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(3,032)	(3,214)
Available-for-sale Securities		814,292	833,502
Non-credit losses on other-than-temporary impairments		3,350	845
United States Government and agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		22,009	23,378
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		1,333	1,606
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(130)	(79)
Available-for-sale Securities		23,212	24,905
Non-credit losses on other-than-temporary impairments		0	0
State, municipal and other government [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		1,405,847	1,383,127
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax		113,842	141,813
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax		(2,782)	(1,239)
Available-for-sale Securities		1,516,907	1,523,701
Non-credit losses on other-than-temporary impairments		$ 0	0
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Equity Securities, Amortized Cost Basis			96,715
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			7,695
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			(265)
Available-for-sale Securities			104,145
Non-redeemable preferred stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost			92,951
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			7,146
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			(265)
Available-for-sale Securities			99,832
Common Stock
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost			3,764
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			549
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax			0
Available-for-sale Securities			$ 4,313
[1]	Non-credit losses subsequent to the initial impairment measurement date on other-than-temporary impairment (OTTI) losses are included in the gross unrealized gains and gross unrealized losses columns above. The non-credit loss component of OTTI losses for corporate, residential mortgage-backed, and other asset-backed securities at March 31, 2018 and residential mortgage-backed and other asset-backed securities at December 31, 2017 were in an unrealized gain position due to increases in estimated fair value subsequent to initial recognition of non-credit losses on such securities.
[2]	Corporate securities include hybrid preferred securities with a fair value of $16.8 million at March 31, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $22.0 million at March 31, 2018 and $21.7 million at December 31, 2017.

Investment Operations Availab25

Investment Operations Available-for-sale Fixed Maturities by Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Due in one year or less, amortized cost basis	$ 165,210
Due after one year through five years, amortized cost basis	588,250
Due after five years through ten years, amortized cost basis	730,313
Due after ten years, amortized cost basis	3,297,471
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	4,781,244
Mortgage-backed and other asset-backed, amortized cost basis	2,109,947
Total fixed maturities, amortized cost basis	6,891,191	$ 6,757,250
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in one year or less, fair value	167,953
Due after one year through five years, fair value	614,089
Due after five years through ten years, fair value	754,274
Due after ten years, fair value	3,549,484
Total fixed maturities with maturity date, fair value	5,085,800
Mortgage-backed and other asset-backed, fair value	2,161,112
Total fixed maturities, fair value	$ 7,246,912	$ 7,291,967

Investment Operations Net Unrea

Investment Operations Net Unrealized Gains (Losses) on Investments in AOCI (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net Unrealized Gains Losses [Line Items]
Assumed changes in amortization of DAC	$ (93,953)	$ (147,173)
Assumed changes in amortization pattern of VIIF	(11,716)	(14,870)
Assumed changes in amortization pattern of URR	8,318	12,705
Assumed change in policyholder liability	(9,407)	(18,499)
Provision for deferred income taxes	(52,280)	(78,605)
Accumulated other comprehensive income	186,222	284,983	$ 149,555
Debt Securities [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale	355,721	534,718
Equity Securities [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale		7,430
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Net Unrealized Gains Losses [Line Items]
Unrealized appreciation on fixed maturities available for sale	355,721	542,148
Accumulated other comprehensive income	$ 196,683	$ 295,706

Investment Operations Unrealize

Investment Operations Unrealized Losses by Length of Time (Details) $ in Thousands	Mar. 31, 2018USD ($)issuerssecurities	Dec. 31, 2017USD ($)issuerssecurities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | securities	475	247
Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Issuers | issuers	301	154
Corporate Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 516,564	$ 85,019
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(13,180)	(1,261)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	162,871	183,820
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(18,781)	(14,694)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	679,435	268,839
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (31,961)	$ (15,955)
percent of total	55.60%	59.10%
Available for sale Securities Continuous Unrealized Loss Position Maximum Loss by issuer	$ 2,900
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	170,226	$ 76,393
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(4,091)	(1,757)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	31,038	31,779
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,348)	(1,523)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	201,264	108,172
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (5,439)	$ (3,280)
percent of total	9.50%	12.10%
Commercial mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 346,486	$ 151,158
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(12,199)	(2,078)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	18,419	16,398
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,952)	(1,155)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	364,905	167,556
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (14,151)	$ (3,233)
percent of total	24.60%	12.00%
Other asset backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 251,682	$ 159,111
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,633)	(2,006)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	64,222	71,064
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,399)	(1,208)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	315,904	230,175
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (3,032)	$ (3,214)
percent of total	5.30%	11.90%
United States Government and agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 5,106	$ 5,698
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(83)	(47)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,324	1,864
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(47)	(32)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	7,430	7,562
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (130)	$ (79)
percent of total	0.20%	0.30%
State, municipal and other government [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 78,770	$ 5,904
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,276)	(96)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	17,463	20,505
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(1,506)	(1,143)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	96,233	26,409
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (2,782)	$ (1,239)
percent of total	4.80%	4.60%
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 1,368,834	$ 483,283
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(32,462)	(7,245)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	296,337	325,430
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(25,033)	(19,755)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,665,171	808,713
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (57,495)	$ (27,000)
percent of total	100.00%	100.00%
Non-redeemable preferred stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 2,819
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		4,807
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(194)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		7,626
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(265)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		2,819
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(71)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		4,807
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(194)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		7,626
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (265)

Investment Operations Credit lo

Investment Operations Credit loss component of Other-than-temporary Impairments on Fixed Maturities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at beginning of period	$ (12,392)	$ (14,500)
Reductions due to securities sold	271	349
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status	2,529	587
Balance at end of period	$ (9,592)	$ (13,564)

Investment Operations Realized

Investment Operations Realized Gains (Losses) - Recorded in Income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017
Gain (Loss) on Investments [Line Items]
Gain (Loss) on Disposition of Other Financial Assets		$ (13)		$ 0
Realized gains (losses) on sales of investments		70		(403)
Net realized capital gains on sales of investments		(1,747)		(403)
Net impairment loss recognized in earnings		(1,295)		(66)
Realized gains (losses) on investments recorded in income		(3,042)		(469)
Proceeds from Sale of Available-for-sale Securities		5,200		9,400
Debt Securities [Member] | Categories of Investments, Marketable Securities, Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross gains - fixed maturities - available for sale		83		124
Gross losses - fixed maturities - available for sale		0		(527)
Other credit-related [Member]
Gain (Loss) on Investments [Line Items]
Net impairment loss recognized in earnings	[1]	(1,295)		(66)
Accounting Standards Update 2016-01 [Member]
Gain (Loss) on Investments [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income		$ (1,817)	[2]	$ 0
[1]	Amount represents credit-related losses for fixed maturities written down to fair value through income and impairment losses related to investments accounted for under the equity method of accounting, which are included in securities and indebtedness of related parties within our consolidated balance sheets.
[2]	See Note 1 to our consolidated financial statements for discussion of change in accounting policy for equity securities during the quarter.

Investment Operations Mortgage

Investment Operations Mortgage Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Mortgage Loans on Real Estate [Line Items]
Contractual Obligation	$ 21,300
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 968,664	$ 971,812
Percentage of Mortgage Loans	100.00%	100.00%
Year of origination 2018 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 5,800
Percentage of Mortgage Loans	0.50%
Year of origination 2017 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 212,785	$ 214,365
Percentage of Mortgage Loans	22.00%	22.10%
Year of origination 2016 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 153,147	$ 154,359
Percentage of Mortgage Loans	15.80%	15.90%
Year of origination 2015 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 143,457	$ 144,890
Percentage of Mortgage Loans	14.80%	14.90%
Year of origination 2014 [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 77,119	$ 77,866
Percentage of Mortgage Loans	8.00%	8.00%
Year of origination prior [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 376,356	$ 380,332
Percentage of Mortgage Loans	38.90%	39.10%
0% to 50% loan to value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 360,416	$ 334,037
Percentage of Mortgage Loans	37.20%	34.40%
51% to 60% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 236,382	$ 258,359
Percentage of Mortgage Loans	24.50%	26.60%
61% to 70% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 301,469	$ 297,404
Percentage of Mortgage Loans	31.10%	30.60%
71% to 80% loan-to-value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 51,621	$ 63,116
Percentage of Mortgage Loans	5.30%	6.50%
81% to 90% loan to value [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 18,776	$ 18,896
Percentage of Mortgage Loans	1.90%	1.90%
South Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 295,318	$ 296,947
Percentage of Mortgage Loans	30.50%	30.50%
Pacific [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 144,935	$ 146,320
Percentage of Mortgage Loans	14.90%	15.00%
West North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 125,609	$ 127,096
Percentage of Mortgage Loans	13.00%	13.10%
Mountain [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 104,298	$ 105,627
Percentage of Mortgage Loans	10.80%	10.90%
East North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 90,764	$ 91,971
Percentage of Mortgage Loans	9.40%	9.50%
West South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 90,511	$ 85,566
Percentage of Mortgage Loans	9.30%	8.80%
East South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 66,661	$ 67,228
Percentage of Mortgage Loans	6.90%	6.90%
New England [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 34,665	$ 35,005
Percentage of Mortgage Loans	3.60%	3.60%
Middle Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 15,903	$ 16,052
Percentage of Mortgage Loans	1.60%	1.70%
Office [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 413,120	$ 410,090
Percentage of Mortgage Loans	42.60%	42.20%
Retail [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 288,683	$ 292,257
Percentage of Mortgage Loans	29.80%	30.10%
Industrial [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 205,107	$ 207,180
Percentage of Mortgage Loans	21.20%	21.30%
Other property type [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 61,754	$ 62,285
Percentage of Mortgage Loans	6.40%	6.40%

Investment Operations Impaired

Investment Operations Impaired mortgage loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance	$ 18,927	$ 19,027
Financing Receivable, Allowance for Credit Losses	(447)	(497)	$ (663)	$ (713)
Impaired Financing Receivable, Recorded Investment	$ 18,480	$ 18,530

Investment Operations Allowance

Investment Operations Allowance on Mortgage Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 497	$ 713
Charge offs	(50)	(50)
Balance at end of period	$ 447	$ 663

Investment Operations LIHTC Inv

Investment Operations LIHTC Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	$ 1,295	$ 66
Pre-Tax on Equity Income (Loss)	(816)	(458)
Equity Method Investments	130,451		$ 130,240
Investment Tax Credit	3,569	3,529
Income (Loss) from Equity Method Investments	1,855	3,231
Affordable Housing Tax Credit Investments
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	300
Pre-Tax on Equity Income (Loss)	1,400
Equity Method Investments	79,200		$ 82,400
Income (Loss) from Affordable Housing Projects, Equity Method Investments	(3,005)	(1,805)
Tax impact of Income from Equity Method Investments	631	632
Income (Loss) from Equity Method Investments	$ 1,195	$ 2,356

Investment Operations Other (De

Investment Operations Other (Details) $ in Thousands	Mar. 31, 2018USD ($)
Summary of Investment Holdings [Line Items]
Other Commitment	$ 47,500
Qualified Affordable Housing Project Investments, Commitment	1,667
Affordable Housing Tax Credit Investments
Summary of Investment Holdings [Line Items]
Other Commitment, Due in Next Twelve Months	810
Other Commitment, Due in Second Year	46
Other Commitment, Due in Third Year	$ 811

Investment Operations Variable

Investment Operations Variable Interest Entities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	$ 117,473	$ 117,523
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	164,981	168,553
Low income housing tax credits [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	79,176	82,417
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	80,843	84,103
Investment companies [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	28,418	25,335
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	63,054	62,372
Real estate limited partnerships [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	9,151	8,589
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	20,129	20,590
Other VIE investments [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	728	1,182
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 955	$ 1,488

Investment Operations Derivativ

Investment Operations Derivative instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative assets	$ 15,681		$ 19,045
Derivative Liabilities	28,874		28,042
Derivative, Gain (Loss) on Derivative, Net	534	$ 1,343
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Asset	7,500
Net Derivative Exposure	5,300
Investment Income [Member] | Equity Option [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(1,152)	2,365
Investment Income [Member] | Embedded Derivative Financial Instruments - MODCO [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(943)	(1,410)
Investment Income [Member] | Embedded Derivative Financial Instruments - Interest only Security [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(35)	(21)
Insurance sensitive product charges [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative, Gain (Loss) on Derivative, Net	2,664	$ 409
Other Investments [Member] | Equity Option [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	12,760		14,824
Reinsurance Recoverable Including Reinsurance Premium Paid [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,069		2,125
Available-for-sale Securities [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1,852		2,096
Contract Holder Funds [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	28,720		27,774
Other Liabilities [Member] | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 154		$ 268

Fair Values Fair Value by Balan

Fair Values Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Debt Securities	$ 7,246,912	$ 7,291,967
Available-for-sale Securities, Equity Securities	103,920	104,145
Mortgage Loans on Real Estate, Commercial and Consumer, Net	968,664	971,812
Policy loans	193,413	191,398
Other investments	15,681	19,045
Assets held in separate accounts	638,751	651,963
Liabilities related to separate accounts	638,751	651,963
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	968,664	971,812
Policy loans	193,413	191,398
Other investments	44,950	42,318
Cash and short-term investments	43,728	69,703
Reinsurance recoverable	1,069	2,125
Assets held in separate accounts	638,751	651,963
Future policy benefits	4,332,983	4,192,367
Supplemental contracts without life contingencies	317,541	322,630
Advance premiums and other deposits	260,967	259,099
Long-term debt	97,000	97,000
Other liabilities	154	268
Liabilities related to separate accounts	638,751	651,963
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Debt Securities	7,246,912	7,291,967
Carrying (Reported) Amount, Fair Value Disclosure [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Equity Securities	103,920	104,145
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	972,107	989,503
Policy loans	232,674	236,223
Other investments	46,040	43,443
Cash and short-term investments	43,728	69,703
Reinsurance recoverable	1,069	2,125
Assets held in separate accounts	638,751	651,963
Future policy benefits	4,142,254	4,147,654
Supplemental contracts without life contingencies	315,625	327,151
Advance premiums and other deposits	260,967	259,099
Long-term debt	76,388	78,628
Other liabilities	154	268
Liabilities related to separate accounts	636,666	649,610
Estimate of Fair Value Measurement [Member] | Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Debt Securities	7,246,912	7,291,967
Estimate of Fair Value Measurement [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Equity Securities	$ 103,920	$ 104,145

Fair Values Valuation of Financ

Fair Values Valuation of Financial Instruments by Hierarchy Levels (Details) - USD ($) $ in Thousands		Mar. 31, 2018		Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		$ 15,681		$ 19,045
Assets held in separate accounts		638,751		651,963
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		46,040		43,443
Cash and short-term investments		43,728		69,703
Reinsurance recoverable		1,069		2,125
Assets held in separate accounts		638,751		651,963
Future policy benefits - index annuity embedded derivatives		4,142,254		4,147,654
Other liabilities		154		268
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		12,760		14,824
Cash and short-term investments		43,728		69,703
Reinsurance recoverable		1,069		2,125
Assets held in separate accounts		638,751		651,963
Assets, Fair Value Disclosure		8,046,640		8,134,727
Future policy benefits - index annuity embedded derivatives		28,720		27,774
Other liabilities		154		268
Total liabilities		28,874		28,042
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		0		0
Cash and short-term investments		43,728		69,703
Reinsurance recoverable		0		0
Assets held in separate accounts		638,751		651,963
Assets, Fair Value Disclosure		696,658		735,057
Future policy benefits - index annuity embedded derivatives		0		0
Other liabilities		0		0
Total liabilities		0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		12,760		14,824
Cash and short-term investments		0		0
Reinsurance recoverable		1,069		2,125
Assets held in separate accounts		0		0
Assets, Fair Value Disclosure		7,207,476		7,210,358
Future policy benefits - index annuity embedded derivatives		0		0
Other liabilities		154		268
Total liabilities		154		268
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments		0		0
Cash and short-term investments		0		0
Reinsurance recoverable		0		0
Assets held in separate accounts		0		0
Assets, Fair Value Disclosure		142,506		189,312
Future policy benefits - index annuity embedded derivatives				27,774
Other liabilities		0		0
Total liabilities		28,720		27,774
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		142,506		189,312
Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,246,912		7,291,967
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,246,912		7,291,967
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		8,961		9,078
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,102,770		7,100,984
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		135,181		181,905
Corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	[1]	3,545,681		3,688,271
Corporate | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		3,545,681		3,688,271
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		3,515,151		3,654,671
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		30,530		33,600
Corporate | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		30,530		33,600
Residential mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		553,544		516,281
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		553,544		516,281
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		553,544		507,157
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		9,124
Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities				9,124
Commercial mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		793,276		705,307
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		793,276		705,307
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		701,263		619,606
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		92,013		85,701
Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		92,013		85,701
Other asset backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		814,292		833,502
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		814,292		833,502
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		0		0
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		801,654		780,022
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available-for-sale		12,638		53,480
Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		12,638		53,480
United States Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		23,212		24,905
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		23,212		24,905
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		8,961		9,078
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		14,251		15,827
United States Government and agencies | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
State, municipal and other government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,516,907		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,516,907		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		1,516,907		1,523,701
State, municipal and other government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Non-redeemable preferred stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities				99,832
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		98,202		99,832
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		90,877		92,425
Non-redeemable preferred stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		7,325		7,407
Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities				4,313
Common Stock | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,218	[2]	4,313
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		5,218		4,313
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		0
Common Stock | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities		0		$ 0
Private Equity Funds, Domestic [Member] | Common Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments Net Asset Value		500
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments		$ 9,500
[1]	Corporate securities include hybrid preferred securities with a fair value of $16.8 million at March 31, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $22.0 million at March 31, 2018 and $21.7 million at December 31, 2017.
[2]	During 2018, we invested in a private equity fund totaling $0.5 million measured at fair value using net asset value (NAV) per share as a practical expedient, which have not been classified in the fair value hierarchy above per fair value reporting guidance. This fund invests in senior secured middle market loans and has unfunded commitments totaling $9.5 million at March 31, 2018. The investment is not currently eligible for redemption.

Fair Values Level 3 Fixed Matur

Fair Values Level 3 Fixed Maturitiies on a Recurring Basis by Valuation Source (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure		$ 142,506	$ 189,312
Corporate Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities	[1]	$ 3,545,681	$ 3,688,271
percent of total		55.60%	59.10%
Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 30,530	$ 33,600
Residential mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 553,544	$ 516,281
percent of total		9.50%	12.10%
Commercial mortgage-backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 793,276	$ 705,307
percent of total		24.60%	12.00%
Other asset backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 814,292	$ 833,502
percent of total		5.30%	11.90%
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure		$ 8,046,640	$ 8,134,727
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 142,506	$ 189,312
percent of total		100.00%	100.00%
Estimate of Fair Value Measurement [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 3,545,681	$ 3,688,271
Estimate of Fair Value Measurement [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		30,530	33,600
Estimate of Fair Value Measurement [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities			9,124
Estimate of Fair Value Measurement [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		92,013	85,701
Estimate of Fair Value Measurement [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		12,638	53,480
Estimate of Fair Value Measurement [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		7,325	7,407
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 102,683	$ 146,460
percent of total		72.10%	77.40%
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 2,407	$ 4,555
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities			9,124
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		92,013	85,701
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		8,263	47,080
Estimate of Fair Value Measurement [Member] | Third-party vendors [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		0	0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 39,823	$ 42,852
percent of total		27.90%	22.60%
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Corporate Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 28,123	$ 29,045
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Residential mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities			0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Commercial mortgage-backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		0	0
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Other asset backed securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		4,375	6,400
Estimate of Fair Value Measurement [Member] | Priced internally [Member] | Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Available-for-sale Securities		$ 7,325	$ 7,407
[1]	Corporate securities include hybrid preferred securities with a fair value of $16.8 million at March 31, 2018 and $17.5 million at December 31, 2017. Corporate securities also include redeemable preferred stock with a fair value of $22.0 million at March 31, 2018 and $21.7 million at December 31, 2017.

Fair Values Quantitative Inform

Fair Values Quantitative Information about Unobservable Measurement Inputs (Details) - Fair Value, Measurements, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 142,506		$ 189,312
Future policy benefits - index annuity embedded derivatives			27,774
Index Annuity Embedded Derivatives [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Future policy benefits - index annuity embedded derivatives	$ 28,720		27,774
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit risk Risk margin	Credit risk Risk margin
Input range and weighted average	0.65% - 1.70% (1.10%) 0.15% - 0.40% (0.25%)	0.40% - 1.60% (0.90%) 0.15% - 0.40% (0.25%)
Corporate Securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 26,744		27,682
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	1.04% - 5.75% (3.75%)	0.91% - 6.20% (4.17%)
Commercial mortgage-backed
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 70,138		72,224
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	1.40% - 4.10% (2.57%)	1.40% - 4.10% (2.50%)
Other asset backed securities [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 5,013
Fair Value Measurements, Valuation Techniques	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread
Input range and weighted average	1.55% - 1.95% (1.77%)
Non-redeemable preferred stock [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 7,325		7,407
Fair Value Measurements, Valuation Techniques	Discounted cash flow	Discounted cash flow
Fair Value Measurements, Significant Assumptions	Credit spread	Credit spread
Input range and weighted average	3.47% (3.47%)	2.94% (2.94%)
Asset fair value by technique [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, Fair Value Disclosure	$ 109,220		$ 107,313

Fair Values Level 3 Financial I

Fair Values Level 3 Financial Instruments Changes in Fair Value (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		$ 189,312		$ 202,332
Purchases		30,125		28,251
Disposals		(3,343)		(4,531)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(1,877)		(636)
Transfers Into Level 3	[1]	0		12,372
Transfers out of Level 3	[1]	(71,681)		(46,289)
Amortization included in net income		(30)		(41)
Asset Balance, end of period		142,506		192,730
Corporate Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		33,600		59,119
Purchases		0		0
Disposals		(1,091)		(1,298)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		30		705
Transfers Into Level 3		0		4,408
Transfers out of Level 3		(2,000)		(18,561)
Amortization included in net income		(8)		(10)
Asset Balance, end of period		30,531		42,953
Residential mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		9,124		0
Purchases		0		15,307
Disposals		0		0
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		0		(1)
Transfers Into Level 3		0	[1]	0
Transfers out of Level 3		(9,124)		0
Amortization included in net income		0		1
Asset Balance, end of period		0		15,307
Commercial mortgage-backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		85,701		81,434
Purchases		21,875		0
Disposals		(227)		(211)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(1,838)		(919)
Transfers Into Level 3		0		0
Transfers out of Level 3		(13,477)		(14,544)
Amortization included in net income		(22)		(22)
Asset Balance, end of period		92,012		67,576
Other asset backed securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		53,480		54,368
Purchases		8,250		12,944
Disposals		(2,025)		(3,022)
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		13		(193)
Transfers Into Level 3		0		7,964
Transfers out of Level 3		(47,080)		(13,184)
Amortization included in net income		0		(10)
Asset Balance, end of period		12,638		59,253
Non-redeemable preferred stock [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Asset Balance, beginning of period		7,407		7,411
Purchases		0		0
Disposals		0		0
Realized and unrealized gains (losses), net, included in net income		0		0
Realized and unrealized gains (losses), net, included in other comprehensive income		(82)		230
Transfers Into Level 3		0		0
Transfers out of Level 3		0		0
Amortization included in net income		0		0
Asset Balance, end of period		7,325		7,641
Index Annuity Embedded Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Liability balance, beginning of period		27,774		15,778
Purchases		2,254		911
Settlements		(942)		(318)
Realized and unrealized gains (losses), net, included in net income		(366)		(2,216)
Realized and unrealized gains (losses), net, included in other comprehensive income		0		0
Transfers Into Level 3	[1]	0		0
Transfers out of Level 3	[1]	0		0
Liability balance, end of period		$ 28,720		$ 18,587
[1]	Transfers into Level 3 represent assets previously priced using an external pricing service with access to observable inputs no longer available and therefore, were priced using non-binding broker quotes. Transfers out of Level 3 include those assets that we are now able to obtain pricing from a third party pricing vendor that uses observable inputs. The fair values of newly issued securities often require additional estimation until a market is created, which is generally within a few months after issuance. Once a market is created, as was the case for the majority of the security transfers out of the Level 3 category above, Level 2 valuation sources become available. There were no transfers between Level 1 and Level 2 during the periods presented above.

Fair Values Valuation of Fina42

Fair Values Valuation of Financial Instruments not reported at fair value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 968,664	$ 971,812
Policy loans	193,413	191,398
Other investments	15,681	19,045
Liabilities related to separate accounts	638,751	651,963
Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	972,107	989,503
Policy loans	232,674	236,223
Other investments	33,280	28,619
Total assets	1,238,061	1,254,345
Future policy benefits	4,113,534	4,119,880
Supplemental contracts without life contingencies	315,625	327,151
Advance premiums and other deposits	260,967	259,099
Long-term debt	76,388	78,628
Liabilities related to separate accounts	636,666	649,610
Total liabilities	5,403,180	5,434,368
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	0	0
Future policy benefits	0	0
Fair Value, Inputs, Level 1 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0	0
Policy loans	0	0
Other investments	0
Total assets	0	0
Future policy benefits	0	0
Supplemental contracts without life contingencies	0	0
Advance premiums and other deposits	0	0
Long-term debt	0	0
Liabilities related to separate accounts	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	12,760	14,824
Future policy benefits	0	0
Fair Value, Inputs, Level 2 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0	0
Policy loans	0	0
Other investments	0
Total assets	0	0
Future policy benefits	0	0
Supplemental contracts without life contingencies	0	0
Advance premiums and other deposits	0	0
Long-term debt	0	0
Liabilities related to separate accounts	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Other investments	0	0
Future policy benefits		27,774
Fair Value, Inputs, Level 3 [Member] | Portion at Other than Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Financial Instruments Not Reported at Fair Value [Line Items]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	972,107	989,503
Policy loans	232,674	236,223
Other investments	33,280	28,619
Total assets	1,238,061	1,254,345
Future policy benefits	4,113,534	4,119,880
Supplemental contracts without life contingencies	315,625	327,151
Advance premiums and other deposits	260,967	259,099
Long-term debt	76,388	78,628
Liabilities related to separate accounts	636,666	649,610
Total liabilities	$ 5,403,180	$ 5,434,368

Defined Benefit Plan (Details)

Defined Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,493	$ 1,388
Interest cost	3,411	3,531
Expected return on assets	(5,562)	(4,796)
Amortization of prior service cost	11	33
Amortization of actuarial loss	3,127	2,530
Net periodic pension cost	2,480	2,686
FBL Financial Group, Inc. share of net periodic pension costs	760	851
Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	135	109
Interest cost	240	251
Amortization of actuarial loss	338	293
Net periodic pension cost	713	653
FBL Financial Group, Inc. share of net periodic pension costs	$ 418	$ 388

Stockholders Equity (Details)

Stockholders Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 50,000
Common Stock Special Dividends Per Share Cash Paid	$ 1.50	$ 1.50
Payment Of Special Cash Dividend	$ 37,300	$ 37,400
Common Stock, Shares, Outstanding	24,837,976	24,917,960	24,930,526	24,893,955
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	6,762	24,005
Issuance of common stock under compensation plans	$ 218	$ 339
Stock Repurchased During Period, Shares	(99,312)
Stock Repurchased During Period, Value	$ (6,806)
Common Class A
Class of Stock [Line Items]
Common Stock, Shares, Outstanding	24,826,563	24,906,547	24,919,113	24,882,542
Common stock, without par value	$ 153,195		$ 153,589
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	6,762	24,005
Stock Repurchased During Period, Shares	(99,312)
Stock Repurchased During Period, Value	$ (6,800)
Common Class B
Class of Stock [Line Items]
Common Stock, Shares, Outstanding	11,413	11,413	11,413	11,413
Common stock, without par value	$ 72		$ 72
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures	0	0
Stock Repurchased During Period, Shares	0
Common Stock
Class of Stock [Line Items]
Common stock, without par value	$ 153,267	$ 153,314	153,661	$ 152,975
Issuance of common stock under compensation plans	218	339
Stock Repurchased During Period, Value	(612)
Common Stock | Common Class A
Class of Stock [Line Items]
Common stock, without par value	153,195	153,242	153,589	152,903
Issuance of common stock under compensation plans	218	339
Stock Repurchased During Period, Value	(612)
Common Stock | Common Class B
Class of Stock [Line Items]
Common stock, without par value	72	72	$ 72	$ 72
Issuance of common stock under compensation plans	0	$ 0
Stock Repurchased During Period, Value	$ 0

Stockholders Equity Accumulated

Stockholders Equity Accumulated other comprehensive income (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Accumulated other comprehensive income		$ 186,222		$ 284,983	$ 149,555
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax		(93,129)	$ 15,494
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated other comprehensive income	[1]	193,338	172,165	295,169	156,963
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	[1]	(95,937)	14,834
Accumulated Other-than-Temporary Impairment [Member]
Accumulated other comprehensive income	[1]	3,345	971	537	311
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	[1]	2,808	660
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated other comprehensive income		(10,461)	(7,538)	$ (10,723)	$ (7,719)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax		0	0
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive income		186,222	165,598
reclassifications out of accumulated other comprehensive income [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax		237	549
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[2]	(25)	368
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Other-than-Temporary Impairment [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[2]	0	0
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax		262	$ 181
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets		0
Accounting Standards Update 2016-01 [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	[3]	(5,869)
Accounting Standards Update 2016-01 [Member] | Accumulated Other Comprehensive Income (Loss)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	[3]	$ (5,869)
[1]	Includes the impact of taxes, deferred acquisition costs, value of insurance in force acquired, unearned revenue reserves and policyholder liabilities. See Note 2 to our consolidated financial statements for further information.
[2]	See Note 2 to our consolidated financial statements for further information.
[3]	See Note 1 to our consolidated financial statements for further discussion on this one-time adjustment related to an accounting change.

Stockholders Equity AOC I Recla

Stockholders Equity AOC I Reclassification Adjustments (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Net realized capital gains on sales of investments		$ (1,747)	$ (403)
Income available to common stockholders		23,593	26,395
Income taxes		4,687	10,733
reclassifications out of accumulated other comprehensive income [Member]
Net realized capital gains on sales of investments		(83)	403
Change in offsets to unrealized on investments		51	163
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax		331	279
Income available to common stockholders		299	845
Income taxes		(62)	(296)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax		237	549
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Net realized capital gains on sales of investments	[1]	(83)	403
Change in offsets to unrealized on investments	[1]	51	163
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	[1]	0	0
Income available to common stockholders	[1]	(32)	566
Income taxes	[1]	7	(198)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[1]	(25)	368
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Other-than-Temporary Impairment [Member]
Net realized capital gains on sales of investments	[1]	0	0
Change in offsets to unrealized on investments	[1]	0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	[1]	0	0
Income available to common stockholders	[1]	0	0
Income taxes	[1]	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	[1]	0	0
reclassifications out of accumulated other comprehensive income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Net realized capital gains on sales of investments		0	0
Change in offsets to unrealized on investments		0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax		331	279
Income available to common stockholders		331	279
Income taxes		(69)	(98)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax		$ 262	$ 181
[1]	See Note 2 to our consolidated financial statements for further information.

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator [Abstract]
Net income attributable to FBL Financial Group, Inc.	$ 23,631	$ 26,433
Less: Dividends Series B preferred stock	(38)	(38)
Income available to common stockholders	$ 23,593	$ 26,395
Denominator [Abstract]
Weighted average shares - diluted	25,019,509	25,052,376
Weighted average shares - basic	25,003,691	25,030,462
Effect of dilutive securities - stock-based compensation	15,818	21,914
Earnings per common share	$ 0.94	$ 1.05
Earnings per common share - assuming dilution	$ 0.94	$ 1.05

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Net income attributable to FBL Financial Group, Inc.		$ 23,631	$ 26,433
Realized gains/losses on investments (1)	[1],[2]	2,424	554
Change in net unrealized gains/losses on derivatives	[1]	509	1
Operating Income (Loss)		27,633	26,988
Pre-Tax Operating Income (Loss)		29,360	34,332
Income tax on operating income		(1,727)	(7,344)
Operating revenues		189,273	182,860
Net realized gains (losses) on investments (1)	[3],[4]	(3,226)	(481)
Change in net unrealized gains/losses on derivatives (1)	[3]	(3,872)	(459)
Consolidated revenues		182,175	181,920
Pre-Tax on Equity Income (Loss)		(816)	(458)
Income Tax on Equity Income		3,740	3,689
Equity Income (Loss), net of related taxes, included in NON-GAAP operating income		2,924	3,231
Premiums collected		169,700	169,900
Annuity Segment
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		16,582	16,421
Operating revenues		57,435	55,051
Life Insurance Segment
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		10,897	13,749
Operating revenues		107,727	104,143
Pre-Tax on Equity Income (Loss)		695	1,166
Premiums collected		76,263	73,573
Corporate and Other
Segment Reporting Information [Line Items]
Pre-Tax Operating Income (Loss)		1,881	4,162
Operating revenues		24,111	23,666
Pre-Tax on Equity Income (Loss)		(1,511)	(1,624)
Affordable Housing Tax Credit Investments
Segment Reporting Information [Line Items]
LIHTC equity losses related to the enactment of the Tax Act	[5],[6]	(1,069)	$ 0
Pre-Tax on Equity Income (Loss)		$ 1,400
[1]	Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items.
[2]	Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
[3]	Amounts are net of adjustments, as applicable, to amortization of unearned revenue reserves, deferred acquisition costs, value of insurance in force acquired, interest sensitive policy reserves and income taxes attributable to these items.
[4]	Beginning in 2018, amounts include the change in net unrealized gains/losses on equity securities due to a change in accounting guidance. See Note 1 to our consolidated financial statements for additional information.
[5]	Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. See Note 2 to our consolidated financial statements for further information.
[6]	Amount represents LIHTC equity losses related to changes in tax rates under the Tax Act. Such investments are accounted for under the equity method of accounting with income/loss recorded in arrears. See Note 2 to our consolidated financial statements for further information.

Segment Information Goodwill by

Segment Information Goodwill by segment (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Annuity Segment
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 3.9	$ 3.9
Life Insurance Segment
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 6.1	$ 6.1

Segment Information Reconciliat

Segment Information Reconciliation of non-GAAP measures Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	$ 169,700	$ 169,900
Change in due premiums and other	(184)	(424)
Traditional life insurance premiums	49,497	48,434
Interest sensitive product charges	30,098	29,201
Life Insurance Segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	76,263	73,573
Interest sensitive product charges	17,878	17,088
Life Insurance Segment | Admiin charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	4,046	3,864
Life Insurance Segment | Cost of insurance charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	12,537	12,035
Life Insurance Segment | Surrender charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	681	525
Life Insurance Segment | Amortization of policy initiation fees
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	614	664
Life insurance - interest sensitive
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	26,582	24,715
Life insurance - traditional
Segment Reporting, Other Significant Reconciling Item [Line Items]
Premiums collected	49,681	48,858
Annuity Segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	1,202	1,135
Corporate and Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	11,018	10,978
Corporate and Other | Admiin charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	1,316	1,425
Corporate and Other | Cost of insurance charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	7,140	7,325
Corporate and Other | Surrender charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	23	52
Corporate and Other | Separate account charges
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	2,145	2,003
Corporate and Other | Amortization of policy initiation fees
Segment Reporting, Other Significant Reconciling Item [Line Items]
Interest sensitive product charges	$ 394	$ 173