Infinity Property & Casualty (IPCC) 10-Q 4 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 29, 2016
Document Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Entity Registrant Name	INFINITY PROPERTY & CASUALTY CORP
Entity Central Index Key	1,195,933
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		11,064,440

Consolidated Statements Of Earn

Consolidated Statements Of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Earned premium	$ 340,715	$ 340,504	$ 676,899	$ 672,610
Percent change, Earned premium	0.10%		0.60%
Installment and other fee income	$ 25,385	24,556	$ 50,903	49,117
Percent change, Installment and other fee income	3.40%		3.60%
Net investment income	$ 8,927	9,202	$ 16,990	17,938
Percent change, Net investment Income	(3.00%)		(5.30%)
Net realized (losses) gains on investments	$ (164)	214	$ (25)	1,384
Percent change, Net realized (losses) gains on investments	(176.40%)		(101.80%)
Other income	$ 220	281	$ 478	681
Percent change, Other income	(21.60%)		(29.80%)
Total revenues	$ 375,084	374,757	$ 745,246	741,730
Percent change, Total revenues	0.10%		0.50%
Costs and Expenses:
Losses and loss adjustment expenses	$ 263,514	262,784	$ 528,798	518,427
Percent change, Losses and loss adjustment expenses	0.30%		2.00%
Commissions and other underwriting expenses	$ 89,164	86,272	$ 177,771	175,101
Percent change, Commissions and other underwriting expenses	3.40%		1.50%
Interest expense	$ 3,508	3,508	$ 7,017	7,015
Percent change, Interest expense	0.00%		0.00%
Corporate general and administrative expenses	$ 2,060	2,074	$ 3,764	3,929
Percent change, Corporate general and administrative expenses	(0.70%)		(4.20%)
Other expenses	$ 797	452	$ 1,080	1,355
Percent change, Other expenses	76.20%		(20.30%)
Total costs and expenses	$ 359,043	355,090	$ 718,429	705,827
Percent change, Total costs and expenses	1.10%		1.80%
Earnings before income taxes	$ 16,040	19,667	$ 26,816	35,903
Percent change, Earnings before income taxes	(18.40%)		(25.30%)
Provision for income taxes	$ 5,026	6,174	$ 8,094	11,257
Percent change, Provision for income taxes	(18.60%)		(28.10%)
Net Earnings	$ 11,015	$ 13,493	$ 18,723	$ 24,646
Percent change, Net Earnings	(18.40%)		(24.00%)
Net Earnings per Common Share:
Basic (usd per share)	$ 1	$ 1.18	$ 1.70	$ 2.16
Percent change, Basic	(15.30%)		(21.30%)
Diluted (usd per share)	$ 0.99	$ 1.18	$ 1.68	$ 2.14
Percent change, Diluted	(16.10%)		(21.50%)
Average Number of Common Shares:
Basic (shares)	11,012	11,408	11,024	11,417
Percent change, Basic	(3.50%)		(3.40%)
Diluted (shares)	11,096	11,483	11,115	11,517
Percent change, Diluted	(3.40%)		(3.50%)
Cash Dividends per Common Share (usd per share)	$ 0.52	$ 0.43	$ 1.04	$ 0.86
Percent change, Cash Dividends per Common Share	20.90%		20.90%
Net realized gains on sales	$ 34	$ 423	$ 291	$ 1,973
Percent change, Net realized gains on sales	(91.90%)		(85.20%)
Total other-than-temporary impairment (OTTI) losses	$ (198)	(208)	$ (316)	(590)
Percent change, Total other-than-temporary impairment (OTTI) losses	(4.80%)		(46.50%)
Total net realized (losses) gains on investments	$ (164)	$ 214	$ (25)	$ 1,384
Percent change,Total net realized (losses) gains on investments	(176.40%)		(101.80%)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 11,015	$ 13,493	$ 18,723	$ 24,646
Other comprehensive income before tax:
Net change in post-retirement benefit liability	(11)	16	(22)	33
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) arising during the period	10,828	(13,472)	26,287	(5,056)
Less: Reclassification adjustments for losses (gains) included in net earnings	164	(214)	25	(1,384)
Unrealized gains (losses) on investments, net	10,992	(13,687)	26,311	(6,440)
Other comprehensive income (loss), before tax	10,981	(13,670)	26,290	(6,407)
Income tax (expense) benefit related to components of other comprehensive income	(3,843)	4,785	(9,201)	2,242
Other comprehensive income (loss), net of tax	7,137	(8,886)	17,088	(4,164)
Comprehensive income	$ 18,152	$ 4,607	$ 35,811	$ 20,482

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Investments:
Fixed maturities – at fair value (amortized cost $1,358,297 and $1,381,510)	$ 1,383,806	$ 1,381,467
Equity securities – at fair value (cost $78,869 and $78,815)	90,742	89,935
Short-term investments - at fair value (amortized cost $4,066 and $4,656)	4,066	4,651
Total investments	1,478,615	1,476,053
Cash and cash equivalents	76,016	62,483
Accrued investment income	11,735	12,245
Agents’ balances and premium receivable, net of allowances for doubtful accounts of $14,790 and $15,385	536,559	511,543
Property and equipment, net of accumulated depreciation of $75,484 and $72,892	98,177	89,707
Prepaid reinsurance premium	3,818	5,385
Recoverables from reinsurers (includes $202 and $362 on paid losses and LAE)	18,690	15,056
Deferred policy acquisition costs	95,821	93,157
Current and deferred income taxes	20,339	33,926
Other assets	11,380	10,306
Goodwill	75,275	75,275
Total assets	2,426,425	2,385,135
Liabilities:
Unpaid losses and loss adjustment expenses	666,210	669,965
Unearned premium	645,396	616,649
Long-term debt (fair value $291,572 and $281,581)	273,486	273,383
Commissions payable	15,238	17,406
Payable for securities purchased	11,873	7,264
Other liabilities	111,167	112,873
Total liabilities	1,723,369	1,697,540
Commitments and contingencies (See Note 9)
Shareholders’ equity:
Common stock, no par value (50,000,000 shares authorized; 21,808,105 and 21,774,520 shares issued)	21,801	21,794
Additional paid-in capital	376,652	376,025
Retained earnings	764,829	757,604
Accumulated other comprehensive income, net of tax	24,899	7,811
Treasury stock, at cost (10,743,948 and 10,623,138 shares)	(485,124)	(475,638)
Total shareholders’ equity	703,057	687,595
Total liabilities and shareholders’ equity	$ 2,426,425	$ 2,385,135

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Fixed maturities, amortized cost	$ 1,358,297	$ 1,381,510
Equity securities, cost	78,869	78,815
Short term investments, amortized cost	4,066	4,656
Agents' balances and premium receivable, allowance for doubtful accounts	14,790	15,385
Property and equipment, accumulated depreciation	75,484	72,892
Recoverable from reinsurers, paid losses and loss adjustment expenses	202	362
Long-term debt, fair value	$ 291,572	$ 281,581
Common stock, par value (usd per share)	$ 0	$ 0
Common stock, shares authorized (shares)	50,000,000	50,000,000
Common stock, shares issued (shares)	21,808,105	21,774,520
Treasury stock, shares (shares)	10,743,948	10,623,138

Consolidated Statements Of Chan

Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income, Net of Tax	Treasury Stock
Beginning Balance at Dec. 31, 2014	$ 697,659	$ 21,745	$ 372,368	$ 725,651	$ 23,494	$ (445,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	24,646			24,646
Net change in post-retirement benefit liability	21				21
Change in unrealized gain on investments	(4,478)				(4,478)
Change in non-credit component of impairment losses on fixed maturities	292				292
Comprehensive income	20,482
Dividends paid to common shareholders	(9,853)			(9,853)
Shares issued and share-based compensation expense, including tax benefit	2,160	28	2,132
Acquisition of treasury stock	(7,892)					(7,892)
Ending Balance at Jun. 30, 2015	702,555	21,773	374,499	740,444	19,330	(453,491)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	26,834			26,834
Net change in post-retirement benefit liability	480				480
Change in unrealized gain on investments	(12,317)				(12,317)
Change in non-credit component of impairment losses on fixed maturities	318				318
Comprehensive income	15,315
Dividends paid to common shareholders	(9,674)			(9,674)
Shares issued and share-based compensation expense, including tax benefit	1,547	21	1,526
Acquisition of treasury stock	(22,147)					(22,147)
Ending Balance at Dec. 31, 2015	687,595	21,794	376,025	757,604	7,811	(475,638)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	18,723			18,723
Net change in post-retirement benefit liability	(14)				(14)
Change in unrealized gain on investments	16,960				16,960
Change in non-credit component of impairment losses on fixed maturities	142				142
Comprehensive income	35,811
Dividends paid to common shareholders	(11,497)			(11,497)
Shares issued and share-based compensation expense, including tax benefit	633	7	627
Acquisition of treasury stock	(9,486)					(9,486)
Ending Balance at Jun. 30, 2016	$ 703,057	$ 21,801	$ 376,652	$ 764,829	$ 24,899	$ (485,124)

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Operating Activities:
Net earnings	$ 11,015	$ 13,493	$ 18,723	$ 24,646
Adjustments:
Depreciation	3,438	2,941	6,521	5,923
Amortization	5,037	5,260	10,839	11,196
Net realized losses (gains) on investments	164	(214)	25	(1,384)
Loss on disposal of property and equipment	399	123	401	238
Share-based compensation expense	28	1,069	351	1,728
Excess tax benefits from share-based payment arrangements	(157)	(298)	(157)	(298)
Activity related to rabbi trust	48	(16)	66	11
Change in accrued investment income	(314)	(1,489)	509	(543)
Change in agents’ balances and premium receivable	6,044	(11,572)	(25,016)	(57,903)
Change in reinsurance receivables	1,663	(759)	(2,067)	(1,521)
Change in deferred policy acquisition costs	1,392	(1,180)	(2,664)	(8,916)
Change in other assets	6,590	(5,122)	3,460	(3,437)
Change in unpaid losses and loss adjustment expenses	(7,265)	5,272	(3,755)	12,850
Change in unearned premium	(7,103)	8,514	28,747	63,688
Change in other liabilities	295	7,889	(3,745)	5,099
Net cash provided by operating activities	21,274	23,911	32,238	51,378
Investing Activities:
Purchases of fixed maturities	(103,611)	(137,518)	(261,498)	(287,674)
Purchases of equity securities			0	(2,000)
Purchases of short-term investments	(5,140)	(2,628)	(5,140)	(3,660)
Purchases of property and equipment	(10,450)	(26,065)	(15,395)	(28,204)
Maturities and redemptions of fixed maturities	36,847	59,775	76,145	106,503
Maturities and redemptions of short-term investments	0	285	0	285
Proceeds from sale of fixed maturities	99,180	56,704	203,115	152,136
Proceeds from sale of equity securities			0	4,489
Proceeds from sale of short-term investments	1,064	0	5,666	0
Proceeds from sale of property and equipment	2	0	2	0
Net cash provided by (used in) investing activities	17,892	(49,448)	2,896	(58,125)
Financing Activities:
Proceeds from stock options exercised and employee stock purchases	68	68	126	133
Excess tax benefits from share-based payment arrangements	157	298	157	298
Principal payments under capital lease obligations	(129)	(128)	(249)	(246)
Acquisition of treasury stock	(1,116)	(5,733)	(10,137)	(7,645)
Dividends paid to shareholders	(5,753)	(4,922)	(11,497)	(9,853)
Net cash used in financing activities	(6,773)	(10,416)	(21,602)	(17,313)
Net increase (decrease) in cash and cash equivalents	32,393	(35,953)	13,533	(24,060)
Cash and cash equivalents at beginning of period	43,623	96,434	62,483	84,541
Cash and cash equivalents at end of period	$ 76,016	$ 60,481	$ 76,016	$ 60,481

Significant Reporting And Accou

Significant Reporting And Accounting Policies	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Significant Reporting And Accounting Policies	Significant Reporting and Accounting Policies Nature of Operations We are a holding company that provides insurance through our subsidiaries for personal automobiles with a concentration on nonstandard risks, commercial vehicles and classic collectors. Although licensed to write insurance in all 50 states and the District of Columbia, we focus on select states that we believe offer the greatest opportunity for premium growth and profitability. Basis of Consolidation and Reporting The accompanying consolidated financial statements are unaudited and should be read in conjunction with our Annual Report on Form 10-K (Form 10-K) for the year ended December 31, 2015 . This Quarterly Report on Form 10-Q, including the Condensed Notes to Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations, focuses on our financial performance since the beginning of the year. These financial statements reflect certain adjustments necessary for a fair presentation of our results of operations and financial position. Such adjustments consist of normal, recurring accruals recorded to accurately match expenses with their related revenue streams and the elimination of all significant intercompany transactions and balances. We have evaluated events that occurred after June 30, 2016 , for recognition or disclosure in our financial statements and the notes to the financial statements. Schedules may not foot due to rounding. Estimates We based certain accounts and balances within these financial statements upon our estimates and assumptions. The amount of reserves for claims not yet paid, for example, is an item that we can only record by estimation. Unrealized capital gains and losses on investments are subject to market fluctuations, and we use judgment in the determination of whether unrealized losses on certain securities are temporary or other-than-temporary. Should actual results differ significantly from these estimates, the effect on our results of operations could be material. The results of operations for the periods presented may not be indicative of our results for the entire year. Recently Adopted Accounting Standards In April 2015 the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) related to the presentation of debt issuance costs. The guidance requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability. We adopted this standard retrospectively as of January 1, 2016. The following table illustrates the effect of adopting this standard on the Consolidated Balance Sheets ($ in millions): December 31, 2015 As Reported As Adjusted Difference Other assets $ 11.9 $ 10.3 $ (1.6 ) Total assets 2,386.8 2,385.1 (1.6 ) Long-term debt 275.0 273.4 (1.6 ) Total liabilities 1,699.2 1,697.5 (1.6 ) Total liabilities and shareholders' equity 2,386.8 2,385.1 (1.6 ) Recently Issued Accounting Standards In June 2016 the FASB issued an ASU related to the accounting for credit losses. The guidance generally requires credit losses on available-for-sale debt securities to be recognized as an allowance rather than as a reduction to the amortized cost of a security. The standard is effective for fiscal periods beginning after December 15, 2019, and interim periods within the year of adoption, with prospective application of the ASU required for debt securities for which an other-than-temporary impairment has been recognized before the implementation date. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations. In March 2016 the FASB issued an ASU related to the accounting for employee share-based payments. The guidance addresses the recognition, presentation and classification of awards, forfeitures and shares withheld for tax purposes. The standard is effective for fiscal periods beginning after December 15, 2016, with each provision having a different application method. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations. In February 2016 the FASB issued an ASU related to the accounting for leases. The guidance requires lessees to recognize lease assets and liabilities on the balance sheet. The standard is effective for fiscal years beginning after December 15, 2018, and is to be applied retrospectively, with an option to use a modified retrospective approach for leases which commenced prior to the effective date of this ASU. We are still evaluating the impact this ASU will have on the Company's consolidated financial statements. In January 2016 the FASB issued an ASU amending the guidance on classifying and measuring financial instruments. The guidance requires equity securities to be measured at fair value and changes in that fair value to be recognized through net income. The standard is effective for fiscal years beginning after December 15, 2017, with a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. We currently record equity securities at fair value and as of June 30, 2016 , we have $7.7 million net unrealized gains , net of tax, recognized as a component of other comprehensive income. In May 2015 the FASB issued an ASU related to the disclosure for short-duration contracts. The guidance requires additional disclosures related to the liability for unpaid claims and claim adjustment expenses in an effort to increase transparency and comparability. The standard is effective for annual periods beginning after December 15, 2015, and interim periods within annual periods after December 15, 2016. The new guidance, which is to be applied retrospectively, will have no material impact on our results of operations or financial position. In May 2014 the FASB issued an ASU related to the accounting for revenue from contracts with customers. Insurance contracts have been excluded from the scope of the guidance. In August 2015 the FASB issued an ASU to defer the effective date from fiscal years beginning after December 15, 2016, to fiscal years beginning after December 15, 2017. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations.

Computation Of Earnings Per Sha

Computation Of Earnings Per Share	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Computation of Net Earnings per Share	Computation of Net Earnings per Share The following table illustrates our computations of basic and diluted net earnings per common share ($ in thousands, except per share figures): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Net earnings $ 11,015 $ 13,493 $ 18,723 $ 24,646 Average basic shares outstanding 11,012 11,408 11,024 11,417 Basic net earnings per share $ 1.00 $ 1.18 $ 1.70 $ 2.16 Average basic shares outstanding 11,012 11,408 11,024 11,417 Restricted stock not vested 24 14 22 13 Dilutive effect of Performance Share Plan 60 61 69 87 Average diluted shares outstanding 11,096 11,483 11,115 11,517 Diluted net earnings per share $ 0.99 $ 1.18 $ 1.68 $ 2.14

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair values of instruments are based on: (i) quoted prices in active markets for identical assets (Level 1); (ii) quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations in which all significant inputs are observable in active markets (Level 2); or (iii) valuations derived from valuation techniques in which one or more significant inputs are unobservable in the marketplace (Level 3). The following tables present, for each of the fair value hierarchy levels, our assets and liabilities for which we report fair value on a recurring basis ($ in thousands): Fair Value June 30, 2016 Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 76,016 $ 0 $ 0 $ 76,016 Fixed maturity securities: U.S. government 64,222 13 0 64,236 State and municipal 0 463,480 626 464,106 Mortgage-backed securities: Residential 0 333,717 0 333,717 Commercial 0 67,372 0 67,372 Total mortgage-backed securities 0 401,089 0 401,089 Asset-backed securities 0 47,374 1,959 49,333 Corporates 0 403,935 1,107 405,043 Total fixed maturities 64,222 1,315,892 3,692 1,383,806 Equity securities 90,742 0 0 90,742 Short-term investments 767 3,299 0 4,066 Total cash and investments $ 231,748 $ 1,319,191 $ 3,692 $ 1,554,631 Percentage of total cash and investments 14.9 % 84.9 % 0.2 % 100.0 % Fair Value December 31, 2015 Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 62,483 $ 0 $ 0 $ 62,483 Fixed maturity securities: U.S. government 64,638 32 0 64,669 State and municipal 0 479,656 10 479,666 Mortgage-backed securities: Residential 0 334,784 0 334,784 Commercial 0 70,224 0 70,224 Total mortgage-backed securities 0 405,008 0 405,008 Asset-backed securities 0 54,018 0 54,018 Corporates 0 376,582 1,524 378,105 Total fixed maturities 64,638 1,315,295 1,534 1,381,467 Equity securities 89,935 0 0 89,935 Short-term investments 0 4,651 0 4,651 Total cash and investments $ 217,056 $ 1,319,946 $ 1,534 $ 1,538,536 Percentage of total cash and investments 14.1 % 85.8 % 0.1 % 100.0 % We do not report our long-term debt at fair value in the Consolidated Balance Sheets. The $291.6 million and $281.6 million fair value of our long-term debt at June 30, 2016 , and December 31, 2015 , respectively, would be included in Level 2 of the fair value hierarchy if it were reported at fair value. Level 1 includes cash and cash equivalents, U.S. Treasury securities, an exchange-traded fund and equities held in a rabbi trust which funds our Supplemental Employee Retirement Plan (SERP). Level 2 includes securities whose fair value was determined using observable market inputs. Level 3 securities are comprised of (i) securities for which there is no active or inactive market for similar instruments; (ii) securities whose fair value is determined based on unobservable inputs; and (iii) securities, other than those backed by the U.S. Government, that are not rated by a nationally recognized statistical rating organization (NRSRO). We recognize transfers between levels at the beginning of the reporting period. A third party nationally recognized pricing service provides the fair value of securities in Level 2. A summary of the significant valuation techniques and market inputs for each class of security follows: U.S. Government : In determining the fair value for U.S. Government securities we use the market approach. The primary inputs to the valuation include reported trades, dealer quotes for identical or similar assets in markets that are not active, benchmark yields, credit spreads, reference data and industry and economic events. State and municipal : In determining the fair value for state and municipal securities we use the market approach. The primary inputs to the valuation include reported trades, dealer quotes for identical or similar assets in markets that are not active, benchmark yields, credit spreads, reference data and industry and economic events. Mortgage-backed securities : In determining the fair value for mortgage-backed securities we use the market approach and to a lesser extent the income approach. The primary inputs to the valuation include reported trades, dealer quotes for identical or similar assets in markets that are not active, benchmark yields, credit spreads, reference data, industry and economic events and monthly payment information. Asset-backed securities : In determining the fair value for asset-backed securities we use the market approach and to a lesser extent the income approach. The primary inputs to the valuation include reported trades, dealer quotes for identical or similar assets in markets that are not active, benchmark yields, credit spreads, reference data, industry and economic events, monthly payment information and collateral performance. Corporate : In determining the fair value for corporate securities we use the market approach. The primary inputs to the valuation include reported trades, dealer quotes for identical or similar assets in markets that are not active, benchmark yields, credit spreads (for investment grade securities), observations of equity and credit default swap curves (for high-yield corporates), reference data and industry and economic events. We review the third party pricing methodologies quarterly and test for significant differences between the market price used to value the security and recent sales activity. The following tables present the progression in the Level 3 fair value category ($ in thousands): Three months ended June 30, 2016 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 0 $ 1,442 $ 1,338 $ 2,781 Total (losses) gains, unrealized or realized Included in net earnings (4 ) 4 0 (0 ) Included in other comprehensive income 1 (26 ) 1 (24 ) Purchases 0 0 620 620 Settlements 0 (312 ) 0 (312 ) Transfers in 628 0 0 628 Balance at end of period $ 626 $ 1,107 $ 1,959 $ 3,692 Three months ended June 30, 2015 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 10 $ 2,946 $ 46 $ 3,002 Total (losses) gains, unrealized or realized Included in net earnings (0 ) 12 0 12 Included in other comprehensive income (0 ) (28 ) 0 (28 ) Purchases 0 0 0 0 Settlements 0 (506 ) (46 ) (552 ) Transfers in 0 0 0 0 Balance at end of period $ 10 $ 2,423 $ 0 $ 2,434 Six months ended June 30, 2016 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 10 $ 1,524 $ 0 $ 1,534 Total (losses) gains, unrealized or realized Included in net earnings (4 ) 7 0 3 Included in other comprehensive income 1 (25 ) 1 (23 ) Purchases 0 0 620 620 Settlements (10 ) (398 ) 0 (408 ) Transfers in 628 0 1,338 1,966 Balance at end of period $ 626 $ 1,107 $ 1,959 $ 3,692 Six months ended June 30, 2015 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 0 $ 3,134 $ 150 $ 3,285 Total losses, unrealized or realized Included in net earnings (0 ) (83 ) 0 (83 ) Included in other comprehensive income 0 (43 ) 0 (42 ) Purchases 0 0 0 0 Settlements 0 (586 ) (150 ) (736 ) Transfers in 10 0 0 10 Balance at end of period $ 10 $ 2,423 $ 0 $ 2,434 Of the $3.7 million fair value of securities in Level 3 at June 30, 2016 , which consisted of six securities, we priced four based on non-binding broker quotes, one price was provided by our unaffiliated money manager, and one security, which was included in Level 3 because it was not rated by a NRSRO, was priced by a nationally recognized pricing service. During the six months ended June 30, 2016 , one security was transferred from Level 2 into Level 3 because a price could not be determined using observable market inputs, and one security was transferred from Level 2 into Level 3 following an exchange after which it was no longer rated by a NRSRO. There were no transfers of securities between Levels 1 and 2. The gains or losses included in net earnings are included in the line item "Net realized (losses) gains on investments" in the Consolidated Statements of Earnings. We recognize the net gains or losses included in other comprehensive income in the line item " Unrealized gains (losses) on investments, net " in the Consolidated Statements of Comprehensive Income and the line item "Change in unrealized gain on investments" or the line item "Change in non-credit component of impairment losses on fixed maturities" in the Consolidated Statements of Changes in Shareholders’ Equity. The following table presents the carrying value and estimated fair value of our financial instruments ($ in thousands): June 30, 2016 December 31, 2015 Carrying Value Fair Value Carrying Value Fair Value Assets: Cash and cash equivalents $ 76,016 $ 76,016 $ 62,483 $ 62,483 Available-for-sale securities: Fixed maturities 1,383,806 1,383,806 1,381,467 1,381,467 Equity securities 90,742 90,742 89,935 89,935 Short-term investments 4,066 4,066 4,651 4,651 Total cash and investments $ 1,554,631 $ 1,554,631 $ 1,538,536 $ 1,538,536 Liabilities: Long-term debt $ 273,486 $ 291,572 $ 273,383 $ 281,581 Refer to Note 4 – Investments to the Consolidated Financial Statements for additional information on investments and Note 5 – Long-Term Debt to the Consolidated Financial Statements for additional information on long-term debt.

Investments

Investments	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Investments	Investments We consider all fixed maturity and equity securities to be available-for-sale and report them at fair value with the net unrealized gains or losses reported after-tax (net of any valuation allowance) as a component of other comprehensive income. The proceeds from sales of securities for the three and six months ended June 30, 2016 , were $100.2 million and $208.8 million , respectively, while the proceeds from sales of securities for the three and six months ended June 30, 2015 , were $56.7 million and $156.6 million , respectively. There was no receivable for unsettled sales as of June 30, 2016 , or 2015 . Gross gains of $0.9 million and gross losses of $0.9 million were realized on sales of available-for-sale securities during the three months ended June 30, 2016 , compared with gross gains of $0.5 million and gross losses of $0.1 million realized on sales during the three months ended June 30, 2015 . Gross gains of $2.2 million and gross losses of $1.9 million were realized on sales of available-for-sale securities during the six months ended June 30, 2016 , compared with gross gains of $2.7 million and gross losses of $0.7 million realized on sales during the six months ended June 30, 2015 . Gains or losses on securities are determined on a specific identification basis. Summarized information for the major categories of our investment portfolio follows ($ in thousands): June 30, 2016 Amortized Cost or Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI Recognized in Accumulated OCI (1) Fixed maturities: U.S. government $ 63,229 $ 1,007 $ 0 $ 64,236 $ 0 State and municipal 453,409 10,752 (55 ) 464,106 (51 ) Mortgage-backed securities: Residential 326,176 7,798 (256 ) 333,717 (2,165 ) Commercial 67,272 309 (209 ) 67,372 0 Total mortgage-backed securities 393,448 $ 8,106 (465 ) $ 401,089 (2,165 ) Asset-backed securities 49,116 227 (10 ) 49,333 (8 ) Corporates 399,095 6,973 (1,026 ) 405,043 (51 ) Total fixed maturities 1,358,297 27,066 (1,556 ) 1,383,806 (2,276 ) Equity securities 78,869 11,873 0 90,742 0 Short-term investments 4,066 1 (0 ) 4,066 0 Total $ 1,441,231 $ 38,940 $ (1,557 ) $ 1,478,615 $ (2,276 ) December 31, 2015 Amortized Cost or Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI Recognized in Accumulated OCI (1) Fixed maturities: U.S. government $ 64,849 $ 103 $ (282 ) $ 64,669 $ 0 State and municipal 472,402 7,393 (129 ) 479,666 (51 ) Mortgage-backed securities: Residential 333,554 3,678 (2,448 ) 334,784 (2,374 ) Commercial 71,137 16 (929 ) 70,224 0 Total mortgage-backed securities 404,691 3,694 (3,377 ) 405,008 (2,374 ) Asset-backed securities 54,106 50 (138 ) 54,018 (8 ) Corporates 385,462 1,281 (8,638 ) 378,105 (61 ) Total fixed maturities 1,381,510 12,521 (12,564 ) 1,381,467 (2,495 ) Equity securities 78,815 11,120 0 89,935 0 Short-term investments 4,656 0 (4 ) 4,651 0 Total $ 1,464,981 $ 23,640 $ (12,568 ) $ 1,476,053 $ (2,495 ) (1) The total non-credit portion of OTTI recognized in Accumulated OCI reflecting the original non-credit loss at the time the credit impairment was determined. The following tables set forth the amount of unrealized loss by investment category and length of time that individual securities have been in a continuous unrealized loss position ($ in thousands): Less than 12 Months 12 Months or More June 30, 2016 Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Fixed maturities: U.S. government 0 $ 0 $ 0 0.0 % 0 $ 0 $ 0 0.0 % State and municipal 7 14,350 (22 ) 0.2 % 1 2,967 (33 ) 1.1 % Mortgage-backed securities: Residential 19 7,071 (16 ) 0.2 % 56 23,240 (240 ) 1.0 % Commercial 2 6,715 (22 ) 0.3 % 10 31,994 (187 ) 0.6 % Total mortgage-backed securities 21 13,786 (38 ) 0.3 % 66 55,234 (427 ) 0.8 % Asset-backed securities 10 6,902 (9 ) 0.1 % 1 824 (1 ) 0.2 % Corporates 40 53,889 (440 ) 0.8 % 26 32,518 (585 ) 1.8 % Total fixed maturities 78 88,927 (509 ) 0.6 % 94 91,542 (1,047 ) 1.1 % Equity securities 0 0 0 0.0 % 0 0 0 0.0 % Short-term investments 3 3,299 (0 ) 0.0 % 0 0 0 0.0 % Total 81 $ 92,226 $ (510 ) 0.5 % 94 $ 91,542 $ (1,047 ) 1.1 % Less than 12 Months 12 Months or More December 31, 2015 Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Fixed maturities: U.S. government 18 $ 36,024 $ (241 ) 0.7 % 4 $ 4,687 $ (41 ) 0.9 % State and municipal 27 54,680 (129 ) 0.2 % 0 0 0 0.0 % Mortgage-backed securities: Residential 205 133,814 (1,436 ) 1.1 % 64 39,001 (1,012 ) 2.5 % Commercial 9 28,733 (349 ) 1.2 % 10 34,169 (580 ) 1.7 % Total mortgage-backed securities 214 162,547 (1,785 ) 1.1 % 74 73,170 (1,592 ) 2.1 % Asset-backed securities 36 35,313 (132 ) 0.4 % 2 1,153 (7 ) 0.6 % Corporates 172 239,440 (7,149 ) 2.9 % 12 14,373 (1,488 ) 9.4 % Total fixed maturities 467 528,003 (9,436 ) 1.8 % 92 93,384 (3,128 ) 3.2 % Equity securities 0 0 0 0.0 % 0 0 0 0.0 % Short-term investments 2 4,651 (4 ) 0.1 % 0 0 0 0.0 % Total 469 $ 532,654 $ (9,440 ) 1.7 % 92 $ 93,384 $ (3,128 ) 3.2 % The determination of whether unrealized losses are “other-than-temporary” requires judgment based on subjective as well as objective factors. Factors we considered and resources we used in our determination include: • whether the unrealized loss is credit-driven or a result of changes in market interest rates; • the length of time the security’s market value has been below its cost; • the extent to which fair value is less than cost basis; • the intent to sell the security; • whether it is more likely than not that there will be a requirement to sell the security before its anticipated recovery; • historical operating, balance sheet and cash flow data contained in issuer SEC filings; • issuer news releases; • near-term prospects for improvement in the issuer and/or its industry; • industry research and communications with industry specialists; and • third-party research and credit rating reports. We regularly evaluate for potential impairment each security position that has either of the following: a fair value of less than 95% of its book value or an unrealized loss that equals or exceeds $ 100,000 . The following table summarizes those securities, excluding the rabbi trust, with unrealized gains or losses: June 30, 2016 December 31, 2015 Number of positions held with unrealized: Gains 1,023 602 Losses 175 561 Number of positions held that individually exceed unrealized: Gains of $500,000 2 2 Losses of $500,000 0 0 Percentage of positions held with unrealized: Gains that were investment grade 95 % 94 % Losses that were investment grade 73 % 89 % Percentage of fair value held with unrealized: Gains that were investment grade 95 % 95 % Losses that were investment grade 69 % 88 % The following table sets forth the amount of unrealized losses, excluding the rabbi trust, by age and severity at June 30, 2016 , ($ in thousands): Fair Value of Securities with Unrealized Losses Total Gross Unrealized Losses Less Than 5%* 5% - 10%* Total Gross Greater Than 10%* Age of Unrealized Losses Three months or less $ 56,881 $ (287 ) $ (287 ) $ 0 $ 0 Four months through six months 17,338 (52 ) (52 ) 0 0 Seven months through nine months 8,170 (70 ) (70 ) 0 0 Ten months through twelve months 13,103 (145 ) (45 ) (100 ) 0 Greater than twelve months 88,276 (1,003 ) (819 ) (179 ) (5 ) Total $ 183,768 $ (1,557 ) $ (1,272 ) $ (279 ) $ (5 ) * As a percentage of amortized cost or cost. The change in unrealized gains (losses) on marketable securities included the following ($ in thousands): Pre-tax Fixed Maturities Equity Securities Short-Term Investments Tax Effects Net Six months ended June 30, 2016 Unrealized holding gains on securities arising during the period $ 25,531 $ 753 $ 3 $ (9,200 ) $ 17,086 Realized (gains) losses on securities sold (293 ) (0 ) 2 102 (189 ) Impairment loss recognized in earnings 316 0 0 (111 ) 205 Change in unrealized, net $ 25,553 $ 753 $ 5 $ (9,209 ) $ 17,102 Six months ended June 30, 2015 Unrealized holding (losses) gains on securities arising during the period $ (7,313 ) $ 2,259 $ (2 ) $ 1,770 $ (3,287 ) Realized gains on securities sold (875 ) (1,098 ) 0 691 (1,283 ) Impairment loss recognized in earnings 590 0 0 (206 ) 383 Change in unrealized, net $ (7,599 ) $ 1,160 $ (2 ) $ 2,254 $ (4,186 ) For fixed maturity securities that are other-than-temporarily impaired, we assess our intent to sell and the likelihood that we will be required to sell the security before recovery of our amortized cost. If a fixed maturity security is considered other-than-temporarily impaired but we do not intend to and are not more than likely to be required to sell the security before our recovery of amortized cost, we separate the amount of the impairment into a credit loss component and the amount due to all other factors ("non-credit component"). The excess of the amortized cost over the present value of the expected cash flows determines the credit loss component of an impairment charge on a fixed maturity security. The present value is determined using the best estimate of cash flows discounted at (i) the effective interest rate implicit at the date of acquisition for non-structured securities; or (ii) the book yield for structured securities. The techniques and assumptions for determining the best estimate of cash flows vary depending on the type of security. We recognize the credit loss component of an impairment charge in net earnings and the non-credit component in accumulated other comprehensive income. If we intend to sell or will, more likely than not, be required to sell a security, we treat the entire amount of the impairment as a credit loss. For our securities held with unrealized losses, we believe, based on our analysis, we will recover our cost basis in these securities and we do not intend to sell the securities nor is it more likely than not there will be a requirement to sell the securities before they recover in value. The following table is a progression of credit losses on fixed maturity securities that were bifurcated between a credit and non-credit component ($ in thousands): Six months ended June 30, 2016 2015 Beginning balance $ 683 $ 852 Securities sold and paid down (65 ) (85 ) Ending balance $ 618 $ 766 The table below sets forth the scheduled maturities of fixed maturity securities at June 30, 2016 , based on their fair values ($ in thousands). We report securities that do not have a single maturity date at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers. Fair Value Amortized Cost Securities with Unrealized Gains Securities with Unrealized Losses Securities with No Unrealized Gains or Losses All Fixed Maturity Securities All Fixed Maturity Securities Maturity One year or less $ 62,071 $ 4,759 $ 0 $ 66,830 $ 66,112 After one year through five years 543,587 50,250 0 593,837 583,974 After five years through ten years 218,261 48,715 1,195 268,171 261,272 After ten years 4,547 0 0 4,547 4,375 Mortgage- and asset-backed securities 373,676 76,746 0 450,422 442,564 Total $ 1,202,142 $ 180,469 $ 1,195 $ 1,383,806 $ 1,358,297

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2016
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt ($ in thousands) June 30, 2016 December 31, 2015 Principal $ 275,000 $ 275,000 Unamortized debt issuance costs 1,514 1,617 Long-term debt less unamortized debt issuance costs $ 273,486 $ 273,383 In September 2012 we issued $275 million principal of senior notes due September 2022 (the “ 5.0% Senior Notes”). The 5.0% Senior Notes accrue interest at 5.0% , payable semiannually. At the time we issued the 5.0% Senior Notes, we capitalized $2.2 million of debt issuance costs, which we are amortizing over the term of the 5.0% Senior Notes. We calculated the June 30, 2016 , fair value of $291.6 million using a 243 basis point spread to the 10 -year U.S. Treasury Note of 1.471% . In August 2014 we renewed our agreement for a $50 million three -year revolving credit facility (the “Credit Agreement”) that requires us to meet certain financial and other covenants. We are currently in compliance with all covenants under the Credit Agreement, and as of June 30, 2016 , there were no borrowings outstanding against it.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The following is a reconciliation of income taxes at the statutory rate of 35.0% to the effective provision for income taxes as shown in the Consolidated Statements of Earnings ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Earnings before income taxes $ 16,040 $ 19,667 $ 26,816 $ 35,903 Income taxes at statutory rate 5,614 6,883 9,386 12,566 Effect of: Dividends-received deduction (150 ) (144 ) (222 ) (248 ) Tax-exempt interest (619 ) (584 ) (1,258 ) (1,308 ) Other 180 19 188 247 Provision for income taxes as shown on the Consolidated Statements of Earnings $ 5,026 $ 6,174 $ 8,094 $ 11,257 GAAP effective tax rate 31.3 % 31.4 % 30.2 % 31.4 %

Additional Information

Additional Information	6 Months Ended
	Jun. 30, 2016
Supplemental Cash Flow Elements [Abstract]
Additional Information	Additional Information Supplemental Cash Flow Information We made the following payments that we do not separately disclose in the Consolidated Statements of Cash Flows ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Income tax payments $ 3,551 $ 12,000 $ 3,551 $ 12,750 Interest payments on debt 0 0 6,875 6,875 Interest payments on capital leases 19 21 40 43 Negative Cash Book Balances Negative cash book balances, included in the line item “Other liabilities” in the Consolidated Balance Sheets, were $42.3 million and $41.4 million at June 30, 2016 , and December 31, 2015 , respectively.

Insurance Reserves

Insurance Reserves	6 Months Ended
	Jun. 30, 2016
Insurance [Abstract]
Insurance Reserves	Insurance Reserves Insurance reserves include liabilities for unpaid losses, both known and estimated for incurred but not reported (IBNR), and unpaid loss adjustment expenses (LAE). The following table provides an analysis of changes in the liability for unpaid losses and LAE on a GAAP basis ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Balance at Beginning of Period Unpaid losses on known claims $ 236,701 $ 241,483 $ 237,660 $ 235,037 IBNR losses 295,281 278,863 290,097 277,482 LAE 141,493 155,409 142,207 155,658 Total unpaid losses and LAE 673,475 675,755 669,965 668,177 Reinsurance recoverables (17,724 ) (13,982 ) (14,694 ) (14,370 ) Unpaid losses and LAE, net of reinsurance recoverables 655,751 661,773 655,271 653,808 Current Activity Loss and LAE incurred: Current accident year 275,687 273,246 546,854 531,030 Prior accident years (12,173 ) (10,462 ) (18,056 ) (12,604 ) Total loss and LAE incurred 263,514 262,784 528,798 518,427 Loss and LAE payments: Current accident year (174,138 ) (164,762 ) (263,582 ) (246,670 ) Prior accident years (97,405 ) (92,922 ) (272,764 ) (258,692 ) Total loss and LAE payments (271,543 ) (257,684 ) (536,347 ) (505,362 ) Balance at End of Period Unpaid losses and LAE, net of reinsurance recoverables 647,723 666,873 647,723 666,873 Add back reinsurance recoverables 18,487 14,155 18,487 14,155 Total unpaid losses and LAE 666,210 681,028 666,210 681,028 Unpaid losses on known claims 236,947 245,863 236,947 245,863 IBNR losses 290,767 281,147 290,767 281,147 LAE 138,496 154,017 138,496 154,017 Total unpaid losses and LAE $ 666,210 $ 681,028 $ 666,210 $ 681,028 The $12.2 million and $18.1 million of favorable reserve development during the three and six months ended June 30, 2016 , respectively, was primarily due to decreases in severity estimates related to Florida personal injury protection and bodily injury coverages and a decrease in California bodily injury loss adjustment expenses, and primarily related to accident years 2014 and prior. The favorable development for the six months ended June 30, 2016, was partially offset by unfavorable development from accident year 2015 in California material damage coverages, driven by an increase in severity. The $10.5 million and $12.6 million of favorable reserve development during the three and six months ended June 30, 2015 , respectively, was primarily due to decreases in loss adjustment expenses related to Florida bodily injury coverages in accident years 2013 and 2014.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments We extended our building lease in Alpharetta, Georgia through November 30, 2021 , at a total base rent amount over the lease period of $2.7 million . In addition, a significant portion of our fleet vehicles, which have minimum lease terms of 367 days, were traded in during the first six months of 2016. The minimum remaining lease payment on our fleet as of June 30, 2016 , has increased to $1.2 million . Other than these items, there have been no material changes from the commitments discussed on Form 10-K for the year ended December 31, 2015 . For a description of our previously reported commitments, refer to Note 14 Commitments and Contingencies of our Form 10-K for the year ended December 31, 2015 . Contingencies From time to time we and our subsidiaries are named as defendants in various lawsuits incidental to our insurance operations. We consider legal actions relating to claims made in the ordinary course of seeking indemnification for a loss covered by the insurance policy in establishing loss and LAE reserves. We also face, in the ordinary course of business, lawsuits that seek damages beyond policy limits, commonly known as extra-contractual claims, as well as class action and individual lawsuits that involve issues not unlike those facing other insurance companies and employers. We continually evaluate potential liabilities and reserves for litigation of these types using the criteria established by the Contingencies topic of the FASC. Under this guidance we may only record reserves for a loss if the likelihood of occurrence is probable and we can reasonably estimate the amount. If a material loss is judged to be reasonably possible, we will disclose an estimated range of loss or state that an estimate cannot be made. We consider each legal action using this guidance and record reserves for losses as warranted by establishing a reserve captured within our Consolidated Balance Sheets line-items “Unpaid losses and loss adjustment expenses” for extra-contractual claims and “Other liabilities” for class action and other non-claims related lawsuits. We record amounts incurred on the Consolidated Statements of Earnings within “Losses and loss adjustment expenses” for extra-contractual claims and “Other expenses” for class action and other non-claims related lawsuits. Certain claims and legal actions have been brought against us for which we have accrued no loss, and for which an estimate of a possible range of loss cannot be made under the above rules. While it is not possible to predict the ultimate outcome of these claims or lawsuits, we do not believe they are likely to have a material effect on our financial condition or liquidity. However, losses incurred because of these cases could have a material adverse impact on net earnings in a given period. For a description of previously reported contingencies, refer to Note 14 Commitments and Contingencies of our Form 10-K for the year ended December 31, 2015 .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2016
Stockholders' Equity Note [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income The components of other comprehensive income before and after tax are as follows ($ in thousands): Three months ended June 30, 2016 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated change in post-retirement benefit liability, beginning of period $ 934 $ (327 ) $ 607 $ 190 $ (66 ) $ 123 Effect on other comprehensive income (11 ) 4 (7 ) 16 (6 ) 11 Accumulated change in post-retirement benefit liability, end of period 923 (323 ) 600 206 (72 ) 134 Accumulated unrealized gains on investments, net, beginning of period 26,392 (9,237 ) 17,155 43,218 (15,126 ) 28,092 Other comprehensive income (loss) before reclassification 10,828 (3,790 ) 7,038 (13,472 ) 4,715 (8,757 ) Reclassification adjustment for other-than-temporary impairments included in net income 198 (69 ) 129 208 (73 ) 135 Reclassification adjustment for realized gains included in net income (34 ) 12 (22 ) (423 ) 148 (275 ) Effect on other comprehensive income 10,992 (3,847 ) 7,144 (13,687 ) 4,790 (8,896 ) Accumulated unrealized gains on investments, net, end of period 37,383 (13,084 ) 24,299 29,532 (10,336 ) 19,196 Accumulated other comprehensive income, beginning of period 27,326 (9,564 ) 17,762 43,408 (15,193 ) 28,216 Change in post-retirement benefit liability (11 ) 4 (7 ) 16 (6 ) 11 Change in unrealized gains on investments, net 10,992 (3,847 ) 7,144 (13,687 ) 4,790 (8,896 ) Effect on other comprehensive income 10,981 (3,843 ) 7,137 (13,670 ) 4,785 (8,886 ) Accumulated other comprehensive income, end of period $ 38,306 $ (13,407 ) $ 24,899 $ 29,738 $ (10,408 ) $ 19,330 Six months ended June 30, 2016 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated change in post-retirement benefit liability, beginning of period $ 944 $ (331 ) $ 614 $ 174 $ (61 ) $ 113 Effect on other comprehensive income (22 ) 8 (14 ) 33 (12 ) 21 Accumulated change in post-retirement benefit liability, end of period 923 (323 ) 600 206 (72 ) 134 Accumulated unrealized gains on investments, net, beginning of period 11,072 (3,875 ) 7,197 35,972 (12,590 ) 23,382 Other comprehensive income (loss) before reclassification 26,287 (9,200 ) 17,086 (5,056 ) 1,770 (3,287 ) Reclassification adjustment for other-than-temporary impairments included in net income 316 (111 ) 205 590 (206 ) 383 Reclassification adjustment for realized gains included in net income (291 ) 102 (189 ) (1,973 ) 691 (1,283 ) Effect on other comprehensive income 26,311 (9,209 ) 17,102 (6,440 ) 2,254 (4,186 ) Accumulated unrealized gains on investments, net, end of period 37,383 (13,084 ) 24,299 29,532 (10,336 ) 19,196 Accumulated other comprehensive income, beginning of period 12,016 (4,206 ) 7,811 36,145 (12,651 ) 23,494 Change in post-retirement benefit liability (22 ) 8 (14 ) 33 (12 ) 21 Change in unrealized gains on investments, net 26,311 (9,209 ) 17,102 (6,440 ) 2,254 (4,186 ) Effect on other comprehensive income 26,290 (9,201 ) 17,088 (6,407 ) 2,242 (4,164 ) Accumulated other comprehensive income, end of period $ 38,306 $ (13,407 ) $ 24,899 $ 29,738 $ (10,408 ) $ 19,330

Significant Reporting And Acc18

Significant Reporting And Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Basis of Consolidation and Reporting	Basis of Consolidation and Reporting The accompanying consolidated financial statements are unaudited and should be read in conjunction with our Annual Report on Form 10-K (Form 10-K) for the year ended December 31, 2015 . This Quarterly Report on Form 10-Q, including the Condensed Notes to Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations, focuses on our financial performance since the beginning of the year. These financial statements reflect certain adjustments necessary for a fair presentation of our results of operations and financial position. Such adjustments consist of normal, recurring accruals recorded to accurately match expenses with their related revenue streams and the elimination of all significant intercompany transactions and balances. We have evaluated events that occurred after June 30, 2016 , for recognition or disclosure in our financial statements and the notes to the financial statements. Schedules may not foot due to rounding.
Estimates	Estimates We based certain accounts and balances within these financial statements upon our estimates and assumptions. The amount of reserves for claims not yet paid, for example, is an item that we can only record by estimation. Unrealized capital gains and losses on investments are subject to market fluctuations, and we use judgment in the determination of whether unrealized losses on certain securities are temporary or other-than-temporary. Should actual results differ significantly from these estimates, the effect on our results of operations could be material. The results of operations for the periods presented may not be indicative of our results for the entire year.
Recently Adopted and Issued Accounting Standards	Recently Adopted Accounting Standards In April 2015 the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) related to the presentation of debt issuance costs. The guidance requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability. We adopted this standard retrospectively as of January 1, 2016. The following table illustrates the effect of adopting this standard on the Consolidated Balance Sheets ($ in millions): December 31, 2015 As Reported As Adjusted Difference Other assets $ 11.9 $ 10.3 $ (1.6 ) Total assets 2,386.8 2,385.1 (1.6 ) Long-term debt 275.0 273.4 (1.6 ) Total liabilities 1,699.2 1,697.5 (1.6 ) Total liabilities and shareholders' equity 2,386.8 2,385.1 (1.6 ) Recently Issued Accounting Standards In June 2016 the FASB issued an ASU related to the accounting for credit losses. The guidance generally requires credit losses on available-for-sale debt securities to be recognized as an allowance rather than as a reduction to the amortized cost of a security. The standard is effective for fiscal periods beginning after December 15, 2019, and interim periods within the year of adoption, with prospective application of the ASU required for debt securities for which an other-than-temporary impairment has been recognized before the implementation date. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations. In March 2016 the FASB issued an ASU related to the accounting for employee share-based payments. The guidance addresses the recognition, presentation and classification of awards, forfeitures and shares withheld for tax purposes. The standard is effective for fiscal periods beginning after December 15, 2016, with each provision having a different application method. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations. In February 2016 the FASB issued an ASU related to the accounting for leases. The guidance requires lessees to recognize lease assets and liabilities on the balance sheet. The standard is effective for fiscal years beginning after December 15, 2018, and is to be applied retrospectively, with an option to use a modified retrospective approach for leases which commenced prior to the effective date of this ASU. We are still evaluating the impact this ASU will have on the Company's consolidated financial statements. In January 2016 the FASB issued an ASU amending the guidance on classifying and measuring financial instruments. The guidance requires equity securities to be measured at fair value and changes in that fair value to be recognized through net income. The standard is effective for fiscal years beginning after December 15, 2017, with a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. We currently record equity securities at fair value and as of June 30, 2016 , we have $7.7 million net unrealized gains , net of tax, recognized as a component of other comprehensive income. In May 2015 the FASB issued an ASU related to the disclosure for short-duration contracts. The guidance requires additional disclosures related to the liability for unpaid claims and claim adjustment expenses in an effort to increase transparency and comparability. The standard is effective for annual periods beginning after December 15, 2015, and interim periods within annual periods after December 15, 2016. The new guidance, which is to be applied retrospectively, will have no material impact on our results of operations or financial position. In May 2014 the FASB issued an ASU related to the accounting for revenue from contracts with customers. Insurance contracts have been excluded from the scope of the guidance. In August 2015 the FASB issued an ASU to defer the effective date from fiscal years beginning after December 15, 2016, to fiscal years beginning after December 15, 2017. We do not expect the adoption of this standard to have a material impact on our financial condition or results of operations.

Significant Reporting and Acc19

Significant Reporting and Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Schedule of effect of adopting new ASU on the Consolidated Balance Sheets	The following table illustrates the effect of adopting this standard on the Consolidated Balance Sheets ($ in millions): December 31, 2015 As Reported As Adjusted Difference Other assets $ 11.9 $ 10.3 $ (1.6 ) Total assets 2,386.8 2,385.1 (1.6 ) Long-term debt 275.0 273.4 (1.6 ) Total liabilities 1,699.2 1,697.5 (1.6 ) Total liabilities and shareholders' equity 2,386.8 2,385.1 (1.6 )

Computation of Net Earnings per

Computation of Net Earnings per Share (Tables)	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Earnings Per Common Share	The following table illustrates our computations of basic and diluted net earnings per common share ($ in thousands, except per share figures): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Net earnings $ 11,015 $ 13,493 $ 18,723 $ 24,646 Average basic shares outstanding 11,012 11,408 11,024 11,417 Basic net earnings per share $ 1.00 $ 1.18 $ 1.70 $ 2.16 Average basic shares outstanding 11,012 11,408 11,024 11,417 Restricted stock not vested 24 14 22 13 Dilutive effect of Performance Share Plan 60 61 69 87 Average diluted shares outstanding 11,096 11,483 11,115 11,517 Diluted net earnings per share $ 0.99 $ 1.18 $ 1.68 $ 2.14

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair value by hierarchy	The following tables present, for each of the fair value hierarchy levels, our assets and liabilities for which we report fair value on a recurring basis ($ in thousands): Fair Value June 30, 2016 Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 76,016 $ 0 $ 0 $ 76,016 Fixed maturity securities: U.S. government 64,222 13 0 64,236 State and municipal 0 463,480 626 464,106 Mortgage-backed securities: Residential 0 333,717 0 333,717 Commercial 0 67,372 0 67,372 Total mortgage-backed securities 0 401,089 0 401,089 Asset-backed securities 0 47,374 1,959 49,333 Corporates 0 403,935 1,107 405,043 Total fixed maturities 64,222 1,315,892 3,692 1,383,806 Equity securities 90,742 0 0 90,742 Short-term investments 767 3,299 0 4,066 Total cash and investments $ 231,748 $ 1,319,191 $ 3,692 $ 1,554,631 Percentage of total cash and investments 14.9 % 84.9 % 0.2 % 100.0 % Fair Value December 31, 2015 Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 62,483 $ 0 $ 0 $ 62,483 Fixed maturity securities: U.S. government 64,638 32 0 64,669 State and municipal 0 479,656 10 479,666 Mortgage-backed securities: Residential 0 334,784 0 334,784 Commercial 0 70,224 0 70,224 Total mortgage-backed securities 0 405,008 0 405,008 Asset-backed securities 0 54,018 0 54,018 Corporates 0 376,582 1,524 378,105 Total fixed maturities 64,638 1,315,295 1,534 1,381,467 Equity securities 89,935 0 0 89,935 Short-term investments 0 4,651 0 4,651 Total cash and investments $ 217,056 $ 1,319,946 $ 1,534 $ 1,538,536 Percentage of total cash and investments 14.1 % 85.8 % 0.1 % 100.0 %
Fair value level 3 reconciliation	The following tables present the progression in the Level 3 fair value category ($ in thousands): Three months ended June 30, 2016 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 0 $ 1,442 $ 1,338 $ 2,781 Total (losses) gains, unrealized or realized Included in net earnings (4 ) 4 0 (0 ) Included in other comprehensive income 1 (26 ) 1 (24 ) Purchases 0 0 620 620 Settlements 0 (312 ) 0 (312 ) Transfers in 628 0 0 628 Balance at end of period $ 626 $ 1,107 $ 1,959 $ 3,692 Three months ended June 30, 2015 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 10 $ 2,946 $ 46 $ 3,002 Total (losses) gains, unrealized or realized Included in net earnings (0 ) 12 0 12 Included in other comprehensive income (0 ) (28 ) 0 (28 ) Purchases 0 0 0 0 Settlements 0 (506 ) (46 ) (552 ) Transfers in 0 0 0 0 Balance at end of period $ 10 $ 2,423 $ 0 $ 2,434 Six months ended June 30, 2016 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 10 $ 1,524 $ 0 $ 1,534 Total (losses) gains, unrealized or realized Included in net earnings (4 ) 7 0 3 Included in other comprehensive income 1 (25 ) 1 (23 ) Purchases 0 0 620 620 Settlements (10 ) (398 ) 0 (408 ) Transfers in 628 0 1,338 1,966 Balance at end of period $ 626 $ 1,107 $ 1,959 $ 3,692 Six months ended June 30, 2015 State and Municipal Corporates Asset-Backed Securities Total Balance at beginning of period $ 0 $ 3,134 $ 150 $ 3,285 Total losses, unrealized or realized Included in net earnings (0 ) (83 ) 0 (83 ) Included in other comprehensive income 0 (43 ) 0 (42 ) Purchases 0 0 0 0 Settlements 0 (586 ) (150 ) (736 ) Transfers in 10 0 0 10 Balance at end of period $ 10 $ 2,423 $ 0 $ 2,434
Carrying Value and Estimated Fair Value	The following table presents the carrying value and estimated fair value of our financial instruments ($ in thousands): June 30, 2016 December 31, 2015 Carrying Value Fair Value Carrying Value Fair Value Assets: Cash and cash equivalents $ 76,016 $ 76,016 $ 62,483 $ 62,483 Available-for-sale securities: Fixed maturities 1,383,806 1,383,806 1,381,467 1,381,467 Equity securities 90,742 90,742 89,935 89,935 Short-term investments 4,066 4,066 4,651 4,651 Total cash and investments $ 1,554,631 $ 1,554,631 $ 1,538,536 $ 1,538,536 Liabilities: Long-term debt $ 273,486 $ 291,572 $ 273,383 $ 281,581

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Summarized information of investment portfolio	Summarized information for the major categories of our investment portfolio follows ($ in thousands): June 30, 2016 Amortized Cost or Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI Recognized in Accumulated OCI (1) Fixed maturities: U.S. government $ 63,229 $ 1,007 $ 0 $ 64,236 $ 0 State and municipal 453,409 10,752 (55 ) 464,106 (51 ) Mortgage-backed securities: Residential 326,176 7,798 (256 ) 333,717 (2,165 ) Commercial 67,272 309 (209 ) 67,372 0 Total mortgage-backed securities 393,448 $ 8,106 (465 ) $ 401,089 (2,165 ) Asset-backed securities 49,116 227 (10 ) 49,333 (8 ) Corporates 399,095 6,973 (1,026 ) 405,043 (51 ) Total fixed maturities 1,358,297 27,066 (1,556 ) 1,383,806 (2,276 ) Equity securities 78,869 11,873 0 90,742 0 Short-term investments 4,066 1 (0 ) 4,066 0 Total $ 1,441,231 $ 38,940 $ (1,557 ) $ 1,478,615 $ (2,276 ) December 31, 2015 Amortized Cost or Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI Recognized in Accumulated OCI (1) Fixed maturities: U.S. government $ 64,849 $ 103 $ (282 ) $ 64,669 $ 0 State and municipal 472,402 7,393 (129 ) 479,666 (51 ) Mortgage-backed securities: Residential 333,554 3,678 (2,448 ) 334,784 (2,374 ) Commercial 71,137 16 (929 ) 70,224 0 Total mortgage-backed securities 404,691 3,694 (3,377 ) 405,008 (2,374 ) Asset-backed securities 54,106 50 (138 ) 54,018 (8 ) Corporates 385,462 1,281 (8,638 ) 378,105 (61 ) Total fixed maturities 1,381,510 12,521 (12,564 ) 1,381,467 (2,495 ) Equity securities 78,815 11,120 0 89,935 0 Short-term investments 4,656 0 (4 ) 4,651 0 Total $ 1,464,981 $ 23,640 $ (12,568 ) $ 1,476,053 $ (2,495 ) (1) The total non-credit portion of OTTI recognized in Accumulated OCI reflecting the original non-credit loss at the time the credit impairment was determined.
Unrealized loss by investment category and length of time	The following tables set forth the amount of unrealized loss by investment category and length of time that individual securities have been in a continuous unrealized loss position ($ in thousands): Less than 12 Months 12 Months or More June 30, 2016 Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Fixed maturities: U.S. government 0 $ 0 $ 0 0.0 % 0 $ 0 $ 0 0.0 % State and municipal 7 14,350 (22 ) 0.2 % 1 2,967 (33 ) 1.1 % Mortgage-backed securities: Residential 19 7,071 (16 ) 0.2 % 56 23,240 (240 ) 1.0 % Commercial 2 6,715 (22 ) 0.3 % 10 31,994 (187 ) 0.6 % Total mortgage-backed securities 21 13,786 (38 ) 0.3 % 66 55,234 (427 ) 0.8 % Asset-backed securities 10 6,902 (9 ) 0.1 % 1 824 (1 ) 0.2 % Corporates 40 53,889 (440 ) 0.8 % 26 32,518 (585 ) 1.8 % Total fixed maturities 78 88,927 (509 ) 0.6 % 94 91,542 (1,047 ) 1.1 % Equity securities 0 0 0 0.0 % 0 0 0 0.0 % Short-term investments 3 3,299 (0 ) 0.0 % 0 0 0 0.0 % Total 81 $ 92,226 $ (510 ) 0.5 % 94 $ 91,542 $ (1,047 ) 1.1 % Less than 12 Months 12 Months or More December 31, 2015 Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Number of Securities with Unrealized Losses Fair Value Gross Unrealized Losses Unrealized Losses as % of Cost Fixed maturities: U.S. government 18 $ 36,024 $ (241 ) 0.7 % 4 $ 4,687 $ (41 ) 0.9 % State and municipal 27 54,680 (129 ) 0.2 % 0 0 0 0.0 % Mortgage-backed securities: Residential 205 133,814 (1,436 ) 1.1 % 64 39,001 (1,012 ) 2.5 % Commercial 9 28,733 (349 ) 1.2 % 10 34,169 (580 ) 1.7 % Total mortgage-backed securities 214 162,547 (1,785 ) 1.1 % 74 73,170 (1,592 ) 2.1 % Asset-backed securities 36 35,313 (132 ) 0.4 % 2 1,153 (7 ) 0.6 % Corporates 172 239,440 (7,149 ) 2.9 % 12 14,373 (1,488 ) 9.4 % Total fixed maturities 467 528,003 (9,436 ) 1.8 % 92 93,384 (3,128 ) 3.2 % Equity securities 0 0 0 0.0 % 0 0 0 0.0 % Short-term investments 2 4,651 (4 ) 0.1 % 0 0 0 0.0 % Total 469 $ 532,654 $ (9,440 ) 1.7 % 92 $ 93,384 $ (3,128 ) 3.2 %
Summary of unrealized gains or losses	The following table summarizes those securities, excluding the rabbi trust, with unrealized gains or losses: June 30, 2016 December 31, 2015 Number of positions held with unrealized: Gains 1,023 602 Losses 175 561 Number of positions held that individually exceed unrealized: Gains of $500,000 2 2 Losses of $500,000 0 0 Percentage of positions held with unrealized: Gains that were investment grade 95 % 94 % Losses that were investment grade 73 % 89 % Percentage of fair value held with unrealized: Gains that were investment grade 95 % 95 % Losses that were investment grade 69 % 88 %
Unrealized loss by age and severity	The following table sets forth the amount of unrealized losses, excluding the rabbi trust, by age and severity at June 30, 2016 , ($ in thousands): Fair Value of Securities with Unrealized Losses Total Gross Unrealized Losses Less Than 5%* 5% - 10%* Total Gross Greater Than 10%* Age of Unrealized Losses Three months or less $ 56,881 $ (287 ) $ (287 ) $ 0 $ 0 Four months through six months 17,338 (52 ) (52 ) 0 0 Seven months through nine months 8,170 (70 ) (70 ) 0 0 Ten months through twelve months 13,103 (145 ) (45 ) (100 ) 0 Greater than twelve months 88,276 (1,003 ) (819 ) (179 ) (5 ) Total $ 183,768 $ (1,557 ) $ (1,272 ) $ (279 ) $ (5 ) * As a percentage of amortized cost or cost.
Change in unrealized gains (losses) on marketable securities	The change in unrealized gains (losses) on marketable securities included the following ($ in thousands): Pre-tax Fixed Maturities Equity Securities Short-Term Investments Tax Effects Net Six months ended June 30, 2016 Unrealized holding gains on securities arising during the period $ 25,531 $ 753 $ 3 $ (9,200 ) $ 17,086 Realized (gains) losses on securities sold (293 ) (0 ) 2 102 (189 ) Impairment loss recognized in earnings 316 0 0 (111 ) 205 Change in unrealized, net $ 25,553 $ 753 $ 5 $ (9,209 ) $ 17,102 Six months ended June 30, 2015 Unrealized holding (losses) gains on securities arising during the period $ (7,313 ) $ 2,259 $ (2 ) $ 1,770 $ (3,287 ) Realized gains on securities sold (875 ) (1,098 ) 0 691 (1,283 ) Impairment loss recognized in earnings 590 0 0 (206 ) 383 Change in unrealized, net $ (7,599 ) $ 1,160 $ (2 ) $ 2,254 $ (4,186 )
Progression of credit losses on fixed maturity securities	The following table is a progression of credit losses on fixed maturity securities that were bifurcated between a credit and non-credit component ($ in thousands): Six months ended June 30, 2016 2015 Beginning balance $ 683 $ 852 Securities sold and paid down (65 ) (85 ) Ending balance $ 618 $ 766
Scheduled maturities of fixed maturity securities	The table below sets forth the scheduled maturities of fixed maturity securities at June 30, 2016 , based on their fair values ($ in thousands). We report securities that do not have a single maturity date at average maturity. Actual maturities may differ from contractual maturities because certain securities may be called or prepaid by the issuers. Fair Value Amortized Cost Securities with Unrealized Gains Securities with Unrealized Losses Securities with No Unrealized Gains or Losses All Fixed Maturity Securities All Fixed Maturity Securities Maturity One year or less $ 62,071 $ 4,759 $ 0 $ 66,830 $ 66,112 After one year through five years 543,587 50,250 0 593,837 583,974 After five years through ten years 218,261 48,715 1,195 268,171 261,272 After ten years 4,547 0 0 4,547 4,375 Mortgage- and asset-backed securities 373,676 76,746 0 450,422 442,564 Total $ 1,202,142 $ 180,469 $ 1,195 $ 1,383,806 $ 1,358,297

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2016
Debt Disclosure [Abstract]
Schedule of long-term debt	($ in thousands) June 30, 2016 December 31, 2015 Principal $ 275,000 $ 275,000 Unamortized debt issuance costs 1,514 1,617 Long-term debt less unamortized debt issuance costs $ 273,486 $ 273,383

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Reconciliation of provision for income taxes	The following is a reconciliation of income taxes at the statutory rate of 35.0% to the effective provision for income taxes as shown in the Consolidated Statements of Earnings ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Earnings before income taxes $ 16,040 $ 19,667 $ 26,816 $ 35,903 Income taxes at statutory rate 5,614 6,883 9,386 12,566 Effect of: Dividends-received deduction (150 ) (144 ) (222 ) (248 ) Tax-exempt interest (619 ) (584 ) (1,258 ) (1,308 ) Other 180 19 188 247 Provision for income taxes as shown on the Consolidated Statements of Earnings $ 5,026 $ 6,174 $ 8,094 $ 11,257 GAAP effective tax rate 31.3 % 31.4 % 30.2 % 31.4 %

Additional Information (Tables)

Additional Information (Tables)	6 Months Ended
	Jun. 30, 2016
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	We made the following payments that we do not separately disclose in the Consolidated Statements of Cash Flows ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Income tax payments $ 3,551 $ 12,000 $ 3,551 $ 12,750 Interest payments on debt 0 0 6,875 6,875 Interest payments on capital leases 19 21 40 43

Insurance Reserves (Tables)

Insurance Reserves (Tables)	6 Months Ended
	Jun. 30, 2016
Insurance [Abstract]
Liability for unpaid losses and LAE	The following table provides an analysis of changes in the liability for unpaid losses and LAE on a GAAP basis ($ in thousands): Three months ended June 30, Six months ended June 30, 2016 2015 2016 2015 Balance at Beginning of Period Unpaid losses on known claims $ 236,701 $ 241,483 $ 237,660 $ 235,037 IBNR losses 295,281 278,863 290,097 277,482 LAE 141,493 155,409 142,207 155,658 Total unpaid losses and LAE 673,475 675,755 669,965 668,177 Reinsurance recoverables (17,724 ) (13,982 ) (14,694 ) (14,370 ) Unpaid losses and LAE, net of reinsurance recoverables 655,751 661,773 655,271 653,808 Current Activity Loss and LAE incurred: Current accident year 275,687 273,246 546,854 531,030 Prior accident years (12,173 ) (10,462 ) (18,056 ) (12,604 ) Total loss and LAE incurred 263,514 262,784 528,798 518,427 Loss and LAE payments: Current accident year (174,138 ) (164,762 ) (263,582 ) (246,670 ) Prior accident years (97,405 ) (92,922 ) (272,764 ) (258,692 ) Total loss and LAE payments (271,543 ) (257,684 ) (536,347 ) (505,362 ) Balance at End of Period Unpaid losses and LAE, net of reinsurance recoverables 647,723 666,873 647,723 666,873 Add back reinsurance recoverables 18,487 14,155 18,487 14,155 Total unpaid losses and LAE 666,210 681,028 666,210 681,028 Unpaid losses on known claims 236,947 245,863 236,947 245,863 IBNR losses 290,767 281,147 290,767 281,147 LAE 138,496 154,017 138,496 154,017 Total unpaid losses and LAE $ 666,210 $ 681,028 $ 666,210 $ 681,028

Accumulated Other Comprehensi27

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2016
Stockholders' Equity Note [Abstract]
Schedule of Other Comprehensive Income Before and After Tax	The components of other comprehensive income before and after tax are as follows ($ in thousands): Three months ended June 30, 2016 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated change in post-retirement benefit liability, beginning of period $ 934 $ (327 ) $ 607 $ 190 $ (66 ) $ 123 Effect on other comprehensive income (11 ) 4 (7 ) 16 (6 ) 11 Accumulated change in post-retirement benefit liability, end of period 923 (323 ) 600 206 (72 ) 134 Accumulated unrealized gains on investments, net, beginning of period 26,392 (9,237 ) 17,155 43,218 (15,126 ) 28,092 Other comprehensive income (loss) before reclassification 10,828 (3,790 ) 7,038 (13,472 ) 4,715 (8,757 ) Reclassification adjustment for other-than-temporary impairments included in net income 198 (69 ) 129 208 (73 ) 135 Reclassification adjustment for realized gains included in net income (34 ) 12 (22 ) (423 ) 148 (275 ) Effect on other comprehensive income 10,992 (3,847 ) 7,144 (13,687 ) 4,790 (8,896 ) Accumulated unrealized gains on investments, net, end of period 37,383 (13,084 ) 24,299 29,532 (10,336 ) 19,196 Accumulated other comprehensive income, beginning of period 27,326 (9,564 ) 17,762 43,408 (15,193 ) 28,216 Change in post-retirement benefit liability (11 ) 4 (7 ) 16 (6 ) 11 Change in unrealized gains on investments, net 10,992 (3,847 ) 7,144 (13,687 ) 4,790 (8,896 ) Effect on other comprehensive income 10,981 (3,843 ) 7,137 (13,670 ) 4,785 (8,886 ) Accumulated other comprehensive income, end of period $ 38,306 $ (13,407 ) $ 24,899 $ 29,738 $ (10,408 ) $ 19,330 Six months ended June 30, 2016 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated change in post-retirement benefit liability, beginning of period $ 944 $ (331 ) $ 614 $ 174 $ (61 ) $ 113 Effect on other comprehensive income (22 ) 8 (14 ) 33 (12 ) 21 Accumulated change in post-retirement benefit liability, end of period 923 (323 ) 600 206 (72 ) 134 Accumulated unrealized gains on investments, net, beginning of period 11,072 (3,875 ) 7,197 35,972 (12,590 ) 23,382 Other comprehensive income (loss) before reclassification 26,287 (9,200 ) 17,086 (5,056 ) 1,770 (3,287 ) Reclassification adjustment for other-than-temporary impairments included in net income 316 (111 ) 205 590 (206 ) 383 Reclassification adjustment for realized gains included in net income (291 ) 102 (189 ) (1,973 ) 691 (1,283 ) Effect on other comprehensive income 26,311 (9,209 ) 17,102 (6,440 ) 2,254 (4,186 ) Accumulated unrealized gains on investments, net, end of period 37,383 (13,084 ) 24,299 29,532 (10,336 ) 19,196 Accumulated other comprehensive income, beginning of period 12,016 (4,206 ) 7,811 36,145 (12,651 ) 23,494 Change in post-retirement benefit liability (22 ) 8 (14 ) 33 (12 ) 21 Change in unrealized gains on investments, net 26,311 (9,209 ) 17,102 (6,440 ) 2,254 (4,186 ) Effect on other comprehensive income 26,290 (9,201 ) 17,088 (6,407 ) 2,242 (4,164 ) Accumulated other comprehensive income, end of period $ 38,306 $ (13,407 ) $ 24,899 $ 29,738 $ (10,408 ) $ 19,330

Significant Reporting And Acc28

Significant Reporting And Accounting Policies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)state	Jun. 30, 2015USD ($)
Accounting Policies [Abstract]
Number of states licensed to write insurance | state	50
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains on securities arising during period, net of tax	$ 17,086	$ (3,287)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains on securities arising during period, net of tax	$ 7,700

Significant Reporting And Acc29

Significant Reporting And Accounting Policies - Effect on Line Items of Recently Adopted Accounting Policies (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets	$ 11,380	$ 10,306
Total assets	2,426,425	2,385,135
Long-term debt	273,486	273,383
Total liabilities	1,723,369	1,697,540
Total liabilities and shareholders' equity	$ 2,426,425	2,385,135
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets		11,900
Total assets		2,386,800
Long-term debt		275,000
Total liabilities		1,699,200
Total liabilities and shareholders' equity		2,386,800
Difference
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other assets		(1,600)
Total assets		(1,600)
Long-term debt		(1,600)
Total liabilities		(1,600)
Total liabilities and shareholders' equity		$ (1,600)

Computation of Net Earnings p30

Computation of Net Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Computation of net earnings per share
Net earnings	$ 11,015	$ 13,493	$ 18,723	$ 26,834	$ 24,646
Average basic shares outstanding (shares)	11,012	11,408	11,024		11,417
Basic net earnings per share (usd per share)	$ 1	$ 1.18	$ 1.70		$ 2.16
Average diluted shares outstanding (shares)	11,096	11,483	11,115		11,517
Diluted net earnings per share (usd per share)	$ 0.99	$ 1.18	$ 1.68		$ 2.14
Restricted stock not vested
Computation of net earnings per share
Dilutive shares (shares)	24	14	22		13
Dilutive effect of Performance Share Plan
Computation of net earnings per share
Dilutive shares (shares)	60	61	69		87

Fair Value - Fair Value by Hier

Fair Value - Fair Value by Hierarchy (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 1,478,615	$ 1,476,053
Recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Long-term debt	291,600	281,600
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and cash equivalents	76,016	62,483
Long-term debt	291,572	281,581
Fair Value | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	1,383,806	1,381,467
Fair Value | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	90,742	89,935
Fair Value | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	4,066	4,651
Fair Value | Recurring basis
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and cash equivalents	76,016	62,483
Total cash and investments	$ 1,554,631	$ 1,538,536
Percentage of total cash and investments (percent)	100.00%	100.00%
Fair Value | Recurring basis | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 1,383,806	$ 1,381,467
Fair Value | Recurring basis | U.S. government
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	64,236	64,669
Fair Value | Recurring basis | State and Municipal
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	464,106	479,666
Fair Value | Recurring basis | Mortgage- Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	401,089	405,008
Fair Value | Recurring basis | Residential
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	333,717	334,784
Fair Value | Recurring basis | Commercial
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	67,372	70,224
Fair Value | Recurring basis | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	49,333	54,018
Fair Value | Recurring basis | Corporates
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	405,043	378,105
Fair Value | Recurring basis | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	90,742	89,935
Fair Value | Recurring basis | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	4,066	4,651
Fair Value | Recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and cash equivalents	76,016	62,483
Total cash and investments	$ 231,748	$ 217,056
Percentage of total cash and investments (percent)	14.90%	14.10%
Fair Value | Recurring basis | Level 1 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 64,222	$ 64,638
Fair Value | Recurring basis | Level 1 | U.S. government
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	64,222	64,638
Fair Value | Recurring basis | Level 1 | State and Municipal
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Mortgage- Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Residential
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Commercial
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Corporates
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	90,742	89,935
Fair Value | Recurring basis | Level 1 | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	767	0
Fair Value | Recurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and cash equivalents	0	0
Total cash and investments	$ 1,319,191	$ 1,319,946
Percentage of total cash and investments (percent)	84.90%	85.80%
Fair Value | Recurring basis | Level 2 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 1,315,892	$ 1,315,295
Fair Value | Recurring basis | Level 2 | U.S. government
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	13	32
Fair Value | Recurring basis | Level 2 | State and Municipal
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	463,480	479,656
Fair Value | Recurring basis | Level 2 | Mortgage- Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	401,089	405,008
Fair Value | Recurring basis | Level 2 | Residential
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	333,717	334,784
Fair Value | Recurring basis | Level 2 | Commercial
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	67,372	70,224
Fair Value | Recurring basis | Level 2 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	47,374	54,018
Fair Value | Recurring basis | Level 2 | Corporates
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	403,935	376,582
Fair Value | Recurring basis | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 2 | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	3,299	4,651
Fair Value | Recurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash and cash equivalents	0	0
Total cash and investments	$ 3,692	$ 1,534
Percentage of total cash and investments (percent)	0.20%	0.10%
Fair Value | Recurring basis | Level 3 | Fixed Maturities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 3,692	$ 1,534
Fair Value | Recurring basis | Level 3 | U.S. government
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 3 | State and Municipal
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	626	10
Fair Value | Recurring basis | Level 3 | Mortgage- Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 3 | Residential
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 3 | Commercial
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 3 | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	1,959	0
Fair Value | Recurring basis | Level 3 | Corporates
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	1,107	1,524
Fair Value | Recurring basis | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	0	0
Fair Value | Recurring basis | Level 3 | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring Basis
Available-for-sale securities:	$ 0	$ 0

Fair Value - Level 3 Investment

Fair Value - Level 3 Investments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)security	Jun. 30, 2015USD ($)	Jun. 30, 2016USD ($)security	Jun. 30, 2015USD ($)
Level 3 reconciliation
Balance at beginning of period	$ 2,781	$ 3,002	$ 1,534	$ 3,285
Included in net earnings	0	12	3	(83)
Included in other comprehensive income	(24)	(28)	(23)	(42)
Purchases	620	0	620	0
Settlements	(312)	(552)	(408)	(736)
Transfers in	628	0	$ 1,966	10
Balance at end of period		2,434		2,434
Number of securities transferred into Level 3 as price not determined using observable market inputs (securities) | security			1
Number of securities transferred into Level 3 as no longer rated by a NRSRO (securities) | security			1
Level 3
Level 3 reconciliation
Balance at end of period	$ 3,692		$ 3,692
Number of positions (securities) | security	6		6
Level 3 | Non-binding broker quotes
Level 3 reconciliation
Number of positions (securities) | security	4		4
Level 3 | Unaffiliated money manager
Level 3 reconciliation
Number of positions (securities) | security	1		1
Level 3 | Nationally recognized pricing service
Level 3 reconciliation
Number of positions (securities) | security	1		1
State and Municipal
Level 3 reconciliation
Balance at beginning of period	$ 0	10	$ 10	0
Included in net earnings	(4)	0	(4)	0
Included in other comprehensive income	1	0	1	0
Purchases	0	0	0	0
Settlements	0	0	(10)	0
Transfers in	628	0	628	10
Balance at end of period	626	10	626	10
Corporates
Level 3 reconciliation
Balance at beginning of period	1,442	2,946	1,524	3,134
Included in net earnings	4	12	7	(83)
Included in other comprehensive income	(26)	(28)	(25)	(43)
Purchases	0	0	0	0
Settlements	(312)	(506)	(398)	(586)
Transfers in	0	0	0	0
Balance at end of period	1,107	2,423	1,107	2,423
Asset-backed securities
Level 3 reconciliation
Balance at beginning of period	1,338	46	0	150
Included in net earnings	0	0	0	0
Included in other comprehensive income	1	0	1	0
Purchases	620	0	620	0
Settlements	0	(46)	0	(150)
Transfers in	0	0	1,338	0
Balance at end of period	$ 1,959	$ 0	$ 1,959	$ 0

Fair Value - Fair Value of Fina

Fair Value - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	$ 1,478,615	$ 1,476,053
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	76,016	62,483
Total cash and investments	1,554,631	1,538,536
Long-term debt	273,486	273,383
Carrying Value | Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	1,383,806	1,381,467
Carrying Value | Equity securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	90,742	89,935
Carrying Value | Short-term investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	4,066	4,651
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	76,016	62,483
Total cash and investments	1,554,631	1,538,536
Long-term debt	291,572	281,581
Fair Value | Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	1,383,806	1,381,467
Fair Value | Equity securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	90,742	89,935
Fair Value | Short-term investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale securities:	$ 4,066	$ 4,651

Investments - Textual (Details)

Investments - Textual (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from sale of available-for-sale securities	$ 100,200,000	$ 56,700,000	$ 208,800,000	$ 156,600,000
Receivable for unsettled sales	0		0		$ 0
Gross realized gains	900,000	500,000	2,200,000	2,700,000
Gross realized losses	$ 900,000	$ 100,000	$ 1,900,000	$ 700,000

Investments - Investments by ma

Investments - Investments by major category (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fixed Maturities
Amortized Cost, Fixed Maturities	$ 1,358,297	$ 1,381,510
Fixed maturities, Fair Value	1,383,806	1,381,467
Equity Securities
Equity securities, Amortized cost	78,869	78,815
Equity securities, Fair Value	90,742	89,935
Available-for-sale securities, Amortized Cost or Cost, Total	1,441,231	1,464,981
Available-for-sale securities, Gross Unrealized Gains	38,940	23,640
Available-for-sale securities, Gross Unrealized Losses	(1,557)	(12,568)
Available-for-sale securities, Fair Value	1,478,615	1,476,053
Available-for-sale securities, OTTI Recognized in Accumulated OCI	(2,276)	(2,495)
Fixed Maturities
Fixed Maturities
Amortized Cost, Fixed Maturities	1,358,297	1,381,510
Fixed maturities, Gross Unrealized Gains	27,066	12,521
Fixed maturities, Gross Unrealized Losses	(1,556)	(12,564)
Fixed maturities, Fair Value	1,383,806	1,381,467
Fixed maturities, OTTI Recognized in Accumulated OCI	(2,276)	(2,495)
U.S. government
Fixed Maturities
Amortized Cost, Fixed Maturities	63,229	64,849
Fixed maturities, Gross Unrealized Gains	1,007	103
Fixed maturities, Gross Unrealized Losses	0	(282)
Fixed maturities, Fair Value	64,236	64,669
Fixed maturities, OTTI Recognized in Accumulated OCI	0	0
State and Municipal
Fixed Maturities
Amortized Cost, Fixed Maturities	453,409	472,402
Fixed maturities, Gross Unrealized Gains	10,752	7,393
Fixed maturities, Gross Unrealized Losses	(55)	(129)
Fixed maturities, Fair Value	464,106	479,666
Fixed maturities, OTTI Recognized in Accumulated OCI	(51)	(51)
Mortgage- Backed Securities
Fixed Maturities
Amortized Cost, Fixed Maturities	393,448	404,691
Fixed maturities, Gross Unrealized Gains	8,106	3,694
Fixed maturities, Gross Unrealized Losses	(465)	(3,377)
Fixed maturities, Fair Value	401,089	405,008
Fixed maturities, OTTI Recognized in Accumulated OCI	(2,165)	(2,374)
Residential
Fixed Maturities
Amortized Cost, Fixed Maturities	326,176	333,554
Fixed maturities, Gross Unrealized Gains	7,798	3,678
Fixed maturities, Gross Unrealized Losses	(256)	(2,448)
Fixed maturities, Fair Value	333,717	334,784
Fixed maturities, OTTI Recognized in Accumulated OCI	(2,165)	(2,374)
Commercial
Fixed Maturities
Amortized Cost, Fixed Maturities	67,272	71,137
Fixed maturities, Gross Unrealized Gains	309	16
Fixed maturities, Gross Unrealized Losses	(209)	(929)
Fixed maturities, Fair Value	67,372	70,224
Fixed maturities, OTTI Recognized in Accumulated OCI	0	0
Asset-backed securities
Fixed Maturities
Amortized Cost, Fixed Maturities	49,116	54,106
Fixed maturities, Gross Unrealized Gains	227	50
Fixed maturities, Gross Unrealized Losses	(10)	(138)
Fixed maturities, Fair Value	49,333	54,018
Fixed maturities, OTTI Recognized in Accumulated OCI	(8)	(8)
Corporates
Fixed Maturities
Amortized Cost, Fixed Maturities	399,095	385,462
Fixed maturities, Gross Unrealized Gains	6,973	1,281
Fixed maturities, Gross Unrealized Losses	(1,026)	(8,638)
Fixed maturities, Fair Value	405,043	378,105
Fixed maturities, OTTI Recognized in Accumulated OCI	(51)	(61)
Equity securities
Equity Securities
Equity securities, Amortized cost	78,869	78,815
Equity securities, Gross Unrealized Gains	11,873	11,120
Equity securities, Gross Unrealized Losses	0	0
Equity securities, Fair Value	90,742	89,935
Equity securities, OTTI Recognized in Accumulated OCI	0	0
Short-term investments
Equity Securities
Equity securities, Amortized cost	4,066	4,656
Equity securities, Gross Unrealized Gains	1	0
Equity securities, Gross Unrealized Losses	0	(4)
Equity securities, Fair Value	4,066	4,651
Equity securities, OTTI Recognized in Accumulated OCI	$ 0	$ 0

Investments - Continuous loss p

Investments - Continuous loss position investments (Details)	6 Months Ended
	Jun. 30, 2016USD ($)security	Dec. 31, 2015USD ($)security
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	175	561
Maximum
Schedule of Available-for-sale Securities [Line Items]
Percentage of book value (percent)	95.00%
Minimum
Schedule of Available-for-sale Securities [Line Items]
Unrealized loss amount	$ 100,000
Less than 12 Months
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	81	469
Less than 12 Months, Fair Value	$ 92,226,000	$ 532,654,000
Less than 12 Months, Gross Unrealized Losses	$ (510,000)	$ (9,440,000)
Unrealized Losses as Percentage of Cost	0.50%	1.70%
Less than 12 Months | Fixed Maturities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	78	467
Less than 12 Months, Fair Value	$ 88,927,000	$ 528,003,000
Less than 12 Months, Gross Unrealized Losses	$ (509,000)	$ (9,436,000)
Unrealized Losses as Percentage of Cost	0.60%	1.80%
Less than 12 Months | U.S. government
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	0	18
Less than 12 Months, Fair Value	$ 0	$ 36,024,000
Less than 12 Months, Gross Unrealized Losses	$ 0	$ (241,000)
Unrealized Losses as Percentage of Cost	0.00%	0.70%
Less than 12 Months | State and Municipal
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	7	27
Less than 12 Months, Fair Value	$ 14,350,000	$ 54,680,000
Less than 12 Months, Gross Unrealized Losses	$ (22,000)	$ (129,000)
Unrealized Losses as Percentage of Cost	0.20%	0.20%
Less than 12 Months | Mortgage- Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	21	214
Less than 12 Months, Fair Value	$ 13,786,000	$ 162,547,000
Less than 12 Months, Gross Unrealized Losses	$ (38,000)	$ (1,785,000)
Unrealized Losses as Percentage of Cost	0.30%	1.10%
Less than 12 Months | Residential
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	19	205
Less than 12 Months, Fair Value	$ 7,071,000	$ 133,814,000
Less than 12 Months, Gross Unrealized Losses	$ (16,000)	$ (1,436,000)
Unrealized Losses as Percentage of Cost	0.20%	1.10%
Less than 12 Months | Commercial
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	2	9
Less than 12 Months, Fair Value	$ 6,715,000	$ 28,733,000
Less than 12 Months, Gross Unrealized Losses	$ (22,000)	$ (349,000)
Unrealized Losses as Percentage of Cost	0.30%	1.20%
Less than 12 Months | Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	10	36
Less than 12 Months, Fair Value	$ 6,902,000	$ 35,313,000
Less than 12 Months, Gross Unrealized Losses	$ (9,000)	$ (132,000)
Unrealized Losses as Percentage of Cost	0.10%	0.40%
Less than 12 Months | Corporates
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	40	172
Less than 12 Months, Fair Value	$ 53,889,000	$ 239,440,000
Less than 12 Months, Gross Unrealized Losses	$ (440,000)	$ (7,149,000)
Unrealized Losses as Percentage of Cost	0.80%	2.90%
Less than 12 Months | Equity securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	0	0
Less than 12 Months, Fair Value	$ 0	$ 0
Less than 12 Months, Gross Unrealized Losses	$ 0	$ 0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
Less than 12 Months | Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions) | security	3	2
Less than 12 Months, Fair Value	$ 3,299,000	$ 4,651,000
Less than 12 Months, Gross Unrealized Losses	$ 0	$ (4,000)
Unrealized Losses as Percentage of Cost	0.00%	0.10%
12 Months or More
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	94	92
Unrealized Losses as Percentage of Cost	1.10%	3.20%
12 Months or More, Fair Value	$ 91,542,000	$ 93,384,000
12 Months of More, Gross Unrealized Losses	$ (1,047,000)	$ (3,128,000)
12 Months or More | Fixed Maturities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	94	92
Unrealized Losses as Percentage of Cost	1.10%	3.20%
12 Months or More, Fair Value	$ 91,542,000	$ 93,384,000
12 Months of More, Gross Unrealized Losses	$ (1,047,000)	$ (3,128,000)
12 Months or More | U.S. government
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	0	4
Unrealized Losses as Percentage of Cost	0.00%	0.90%
12 Months or More, Fair Value	$ 0	$ 4,687,000
12 Months of More, Gross Unrealized Losses	$ 0	$ (41,000)
12 Months or More | State and Municipal
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	1	0
Unrealized Losses as Percentage of Cost	1.10%	0.00%
12 Months or More, Fair Value	$ 2,967,000	$ 0
12 Months of More, Gross Unrealized Losses	$ (33,000)	$ 0
12 Months or More | Mortgage- Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	66	74
Unrealized Losses as Percentage of Cost	0.80%	2.10%
12 Months or More, Fair Value	$ 55,234,000	$ 73,170,000
12 Months of More, Gross Unrealized Losses	$ (427,000)	$ (1,592,000)
12 Months or More | Residential
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	56	64
Unrealized Losses as Percentage of Cost	1.00%	2.50%
12 Months or More, Fair Value	$ 23,240,000	$ 39,001,000
12 Months of More, Gross Unrealized Losses	$ (240,000)	$ (1,012,000)
12 Months or More | Commercial
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	10	10
Unrealized Losses as Percentage of Cost	0.60%	1.70%
12 Months or More, Fair Value	$ 31,994,000	$ 34,169,000
12 Months of More, Gross Unrealized Losses	$ (187,000)	$ (580,000)
12 Months or More | Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	1	2
Unrealized Losses as Percentage of Cost	0.20%	0.60%
12 Months or More, Fair Value	$ 824,000	$ 1,153,000
12 Months of More, Gross Unrealized Losses	$ (1,000)	$ (7,000)
12 Months or More | Corporates
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	26	12
Unrealized Losses as Percentage of Cost	1.80%	9.40%
12 Months or More, Fair Value	$ 32,518,000	$ 14,373,000
12 Months of More, Gross Unrealized Losses	$ (585,000)	$ (1,488,000)
12 Months or More | Equity securities
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
12 Months or More, Fair Value	$ 0	$ 0
12 Months of More, Gross Unrealized Losses	$ 0	$ 0
12 Months or More | Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Number of Securities with Unrealized Losses (positions)	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
12 Months or More, Fair Value	$ 0	$ 0
12 Months of More, Gross Unrealized Losses	$ 0	$ 0

Investments - Summary of unreal

Investments - Summary of unrealized gains and losses (Details) - security	Jun. 30, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Number of positions held with unrealized gains (positions)	1,023	602
Number of positions held with unrealized losses (positions)	175	561
Number of positions held that individually exceed unrealized gains of $500,000 (positions)	2	2
Number of positions held that individually exceed unrealized losses of $500,000 (positions)	0	0
Percentage of positions held with unrealized gains that were investment grade (percent)	95.00%	94.00%
Percentage of positions held with unrealized losses that were investment grade (percent)	73.00%	89.00%
Percentage of fair value held with unrealized gains that were investment grade (percent)	95.00%	95.00%
Percentage of fair value held with unrealized losses that were investment grade (percent)	69.00%	88.00%

Investments - Unrealized losses

Investments - Unrealized losses by age and severity (Details) $ in Thousands	Jun. 30, 2016USD ($)
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	$ 183,768
Total Gross Unrealized Losses	(1,557)
Three months or less
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	56,881
Total Gross Unrealized Losses	(287)
Four months through six months
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	17,338
Total Gross Unrealized Losses	(52)
Seven months through nine months
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	8,170
Total Gross Unrealized Losses	(70)
Ten months through twelve months
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	13,103
Total Gross Unrealized Losses	(145)
Greater than twelve months
Schedule of Available-for-sale Securities [Line Items]
Fair Value of Securities with Unrealized Losses	88,276
Total Gross Unrealized Losses	(1,003)
Less Than 5% as a Percentage of Amortized Cost or Cost
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(1,272)	[1]
Less Than 5% as a Percentage of Amortized Cost or Cost | Three months or less
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(287)	[1]
Less Than 5% as a Percentage of Amortized Cost or Cost | Four months through six months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(52)	[1]
Less Than 5% as a Percentage of Amortized Cost or Cost | Seven months through nine months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(70)	[1]
Less Than 5% as a Percentage of Amortized Cost or Cost | Ten months through twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(45)	[1]
Less Than 5% as a Percentage of Amortized Cost or Cost | Greater than twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(819)	[1]
5% - 10% as a Percentage of Amortized Cost or Cost
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(279)	[1]
5% - 10% as a Percentage of Amortized Cost or Cost | Three months or less
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
5% - 10% as a Percentage of Amortized Cost or Cost | Four months through six months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
5% - 10% as a Percentage of Amortized Cost or Cost | Seven months through nine months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
5% - 10% as a Percentage of Amortized Cost or Cost | Ten months through twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(100)	[1]
5% - 10% as a Percentage of Amortized Cost or Cost | Greater than twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(179)	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	(5)	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost | Three months or less
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost | Four months through six months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost | Seven months through nine months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost | Ten months through twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	0	[1]
Greater Than 10% as a Percentage of Amortized Cost or Cost | Greater than twelve months
Schedule of Available-for-sale Securities [Line Items]
Total Gross Unrealized Losses	$ (5)	[1]
[1]	As a percentage of amortized cost or cost.

Investments - Change in unreali

Investments - Change in unrealized gains and losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains (losses) on securities arising during the period, pre-tax	$ 10,828	$ (13,472)	$ 26,287	$ (5,056)
Unrealized holding gains (losses) on securities arising during the period, tax effects			(9,200)	1,770
Unrealized holding gains (losses) on securities arising during period, net of tax			17,086	(3,287)
Realized gains on securities sold, pre-tax	(34)	(423)	(291)	(1,973)
Realized gains on securities sold, tax effects			102	691
Realized gains on securities sold, net of tax			(189)	(1,283)
Impairment loss recognized in earnings, tax effects			(111)	(206)
Impairment loss recognized in earnings			205	383
Change in unrealized gains (losses) on marketable securities, net, pre-tax	$ 10,992	$ (13,687)	26,311	(6,440)
Change in unrealized gains (losses) on marketable securities, net, tax effects			(9,209)	2,254
Change in unrealized gains (losses) on marketable securities, net, net of tax			17,102	(4,186)
Fixed Maturities
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains (losses) on securities arising during the period, pre-tax			25,531	(7,313)
Realized gains on securities sold, pre-tax			(293)	(875)
Impairment loss recognized in earnings, pre-tax			316	590
Change in unrealized gains (losses) on marketable securities, net, pre-tax			25,553	(7,599)
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains (losses) on securities arising during the period, pre-tax			753	2,259
Unrealized holding gains (losses) on securities arising during period, net of tax			7,700
Realized gains on securities sold, pre-tax			0	(1,098)
Impairment loss recognized in earnings, pre-tax			0	0
Change in unrealized gains (losses) on marketable securities, net, pre-tax			753	1,160
Short-term investments
Schedule of Available-for-sale Securities [Line Items]
Unrealized holding gains (losses) on securities arising during the period, pre-tax			3	(2)
Realized gains on securities sold, pre-tax			2	0
Impairment loss recognized in earnings, pre-tax			0	0
Change in unrealized gains (losses) on marketable securities, net, pre-tax			$ 5	$ (2)

Investments - Credit losses rol

Investments - Credit losses rollforward (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Credit losses on fixed maturity securities
Beginning balance	$ 683	$ 852
Reductions for: Securities sold and paid down	(65)	(85)
Ending balance	$ 618	$ 766

Investments - Investments by co

Investments - Investments by contractual maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
One year or less, fair value	$ 66,830
One year or less, amortized cost	66,112
After one year through five years, fair value	593,837
After one year through five years, amortized cost	583,974
After five years through ten years, fair value	268,171
After five years through ten years, amortized cost	261,272
After ten years, fair value	4,547
After ten years, amortized cost basis	4,375
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	450,422
Mortgage-backed, asset-backed and collateralized mortgage obligations, amortized cost	442,564
Fair Value, Fixed maturities	1,383,806	$ 1,381,467
Amortized Cost, Fixed Maturities	1,358,297	$ 1,381,510
Securities with Unrealized Gains
Schedule of Available-for-sale Securities [Line Items]
One year or less, fair value	62,071
After one year through five years, fair value	543,587
After five years through ten years, fair value	218,261
After ten years, fair value	4,547
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	373,676
Fair Value, Fixed maturities	1,202,142
Securities with Unrealized Losses
Schedule of Available-for-sale Securities [Line Items]
One year or less, fair value	4,759
After one year through five years, fair value	50,250
After five years through ten years, fair value	48,715
After ten years, fair value	0
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	76,746
Fair Value, Fixed maturities	180,469
Securities with No Unrealized Gains or Losses
Schedule of Available-for-sale Securities [Line Items]
One year or less, fair value	0
After one year through five years, fair value	0
After five years through ten years, fair value	1,195
After ten years, fair value	0
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	0
Fair Value, Fixed maturities	$ 1,195

Long-Term Debt - Long-term Debt

Long-Term Debt - Long-term Debt Less Unamortized Debt Issuance Costs (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2012
Debt Instrument [Line Items]
Long-term debt less unamortized debt issuance costs	$ 273,486,000	$ 273,383,000
Senior Notes | Senior Notes Due 2022
Debt Instrument [Line Items]
Principal	275,000,000	275,000,000	$ 275,000,000
Unamortized debt issuance costs	1,514,000	1,617,000
Long-term debt less unamortized debt issuance costs	$ 273,486,000	$ 273,383,000

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($)	1 Months Ended		6 Months Ended
	Aug. 31, 2014	Sep. 30, 2012	Jun. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term debt, fair value			$ 291,572,000	$ 281,581,000
US Treasury Note
Debt Instrument [Line Items]
Term of note used (years)			10 years
Effective percentage (percent)			1.471%
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility capacity	$ 50,000,000
Term of revolving credit facility (years)	3 years
Senior Notes Due 2022 | Senior Notes
Debt Instrument [Line Items]
Principal		$ 275,000,000	$ 275,000,000	$ 275,000,000
Coupon rate (percent)		5.00%
Capitalized debt issuance costs		$ 2,200,000
Long-term debt, fair value			$ 291,600,000
10-year U.S. Treasury note | Senior Notes Due 2022 | Senior Notes
Debt Instrument [Line Items]
Basis points			2.43%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Federal statutory income tax rate (percent)			35.00%
Income tax reconciliation
Earnings before income taxes	$ 16,040	$ 19,667	$ 26,816	$ 35,903
Income taxes at statutory rate	5,614	6,883	9,386	12,566
Dividends-received deduction	(150)	(144)	(222)	(248)
Tax-exempt interest	(619)	(584)	(1,258)	(1,308)
Other	180	19	188	247
Provision for income taxes as shown on the Consolidated Statements of Earnings	$ 5,026	$ 6,174	$ 8,094	$ 11,257
GAAP effective tax rate (percent)	31.30%	31.40%	30.20%	31.40%

Additional Information (Details

Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Income tax payments	$ 3,551	$ 12,000	$ 3,551	$ 12,750
Interest payments on debt	0	0	6,875	6,875
Interest payments on capital leases	19	$ 21	40	$ 43
Negative cash book balances	$ 42,300		$ 42,300		$ 41,400

Insurance Reserves - Changes in

Insurance Reserves - Changes in the liability for unpaid losses and LAE (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Unpaid losses on known claims, balance at beginning of period	$ 236,701	$ 241,483	$ 237,660	$ 235,037
IBNR losses, balance at beginning of period	295,281	278,863	290,097	277,482
LAE, balance at beginning of period	141,493	155,409	142,207	155,658
Total unpaid losses and LAE, balance at beginning of period	673,475	675,755	669,965	668,177
Reinsurance recoverables, balance at beginning of period	(17,724)	(13,982)	(14,694)	(14,370)
Unpaid losses and LAE, net of reinsurance recoverables, balance at beginning of period	655,751	661,773	655,271	653,808
Loss and LAE incurred, current accident year	275,687	273,246	546,854	531,030
Loss and LAE incurred, Prior accident years	(12,173)	(10,462)	(18,056)	(12,604)
Total loss and LAE incurred	263,514	262,784	528,798	518,427
Loss and LAE payments, current accident year	(174,138)	(164,762)	(263,582)	(246,670)
Loss and LAE payments, prior accident years	(97,405)	(92,922)	(272,764)	(258,692)
Total loss and LAE payments	(271,543)	(257,684)	(536,347)	(505,362)
Unpaid losses and LAE, net of reinsurance recoverables, balance at end of period	647,723	666,873	647,723	666,873
Add back reinsurance recoverables, balance at end of period	18,487	14,155	18,487	14,155
Total unpaid losses and LAE, balance at end of period	666,210	681,028	666,210	681,028
Unpaid losses on known claims, balance at end of period	236,947	245,863	236,947	245,863
IBNR losses, balance at end of period	290,767	281,147	290,767	281,147
LAE, balance at end of period	$ 138,496	$ 154,017	$ 138,496	$ 154,017

Insurance Reserves - Narrative

Insurance Reserves - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Insurance [Abstract]
Favorable reserve development related to prior accident years	$ 12,173	$ 10,462	$ 18,056	$ 12,604

Commitments And Contingencies (

Commitments And Contingencies (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016USD ($)
Fleet vehicles
Operating Leased Assets [Line Items]
Operating lease, future amount	$ 1.2
Alpharetta, Georgia | Building
Operating Leased Assets [Line Items]
Operating lease, future amount	$ 2.7
Minimum | Fleet vehicles
Operating Leased Assets [Line Items]
Minimum lease terms	367 days

Accumulated Other Comprehensi49

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Before Tax [Abstract]
Accumulated other comprehensive income, beginning of period	$ 27,326	$ 43,408	$ 12,016	$ 36,145
Effect on other comprehensive income	10,981	(13,670)	26,290	(6,407)
Accumulated other comprehensive income, end of period	38,306	29,738	38,306	29,738
Income Tax [Abstract]
Accumulated other comprehensive income, beginning of period	(9,564)	(15,193)	(4,206)	(12,651)
Effect on other comprehensive income	(3,843)	4,785	(9,201)	2,242
Accumulated other comprehensive income, end of period	(13,407)	(10,408)	(13,407)	(10,408)
Net [Abstract]
Accumulated other comprehensive income, beginning of period	17,762	28,216	7,811	23,494
Other comprehensive income, net of tax	7,137	(8,886)	17,088	(4,164)
Accumulated other comprehensive income, end of period	24,899	19,330	24,899	19,330
Accumulated Change Post-retirement Benefit Liability
Before Tax [Abstract]
Accumulated other comprehensive income, beginning of period	934	190	944	174
Effect on other comprehensive income	(11)	16	(22)	33
Accumulated other comprehensive income, end of period	923	206	923	206
Income Tax [Abstract]
Accumulated other comprehensive income, beginning of period	(327)	(66)	(331)	(61)
Effect on other comprehensive income	4	(6)	8	(12)
Accumulated other comprehensive income, end of period	(323)	(72)	(323)	(72)
Net [Abstract]
Accumulated other comprehensive income, beginning of period	607	123	614	113
Other comprehensive income, net of tax	(7)	11	(14)	21
Accumulated other comprehensive income, end of period	600	134	600	134
Accumulated Unrealized Gains on Investments, Net and Other-than-Temporary Impairments
Before Tax [Abstract]
Accumulated other comprehensive income, beginning of period	26,392	43,218	11,072	35,972
Effect on other comprehensive income	10,992	(13,687)	26,311	(6,440)
Other comprehensive income (loss) before reclassification	10,828	(13,472)	26,287	(5,056)
Accumulated other comprehensive income, end of period	37,383	29,532	37,383	29,532
Income Tax [Abstract]
Accumulated other comprehensive income, beginning of period	(9,237)	(15,126)	(3,875)	(12,590)
Other comprehensive income (loss) before reclassification	(3,790)	4,715	(9,200)	1,770
Effect on other comprehensive income	(3,847)	4,790	(9,209)	2,254
Accumulated other comprehensive income, end of period	(13,084)	(10,336)	(13,084)	(10,336)
Net [Abstract]
Accumulated other comprehensive income, beginning of period	17,155	28,092	7,197	23,382
Other comprehensive income (loss) before reclassification	7,038	(8,757)	17,086	(3,287)
Other comprehensive income, net of tax	7,144	(8,896)	17,102	(4,186)
Accumulated other comprehensive income, end of period	24,299	19,196	24,299	19,196
Reclassification Adjustment for Other-than-Temporary Impairments
Before Tax [Abstract]
Reclassicification adjustment	198	208	316	590
Income Tax [Abstract]
Reclassicification adjustment	(69)	(73)	(111)	(206)
Net [Abstract]
Reclassicification adjustment	129	135	205	383
Accumulated Unrealized Gains on Investments, Net
Before Tax [Abstract]
Effect on other comprehensive income			26,311	(6,440)
Reclassicification adjustment	(34)	(423)	(291)	(1,973)
Income Tax [Abstract]
Reclassicification adjustment	12	148	102	691
Effect on other comprehensive income			(9,209)	2,254
Net [Abstract]
Reclassicification adjustment	$ (22)	$ (275)	(189)	(1,283)
Other comprehensive income, net of tax			$ 17,102	$ (4,186)