Infinity Property & Casualty (IPCC) 10-K 27 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 14, 2014	Jun. 30, 2013
Document Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Registrant Name	'INFINITY PROPERTY & CASUALTY CORP	'	'
Entity Central Index Key	'0001195933	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	11,502,845	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$661,402,558

Consolidated_Statements_of_Ear

Consolidated Statements of Earnings (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:	'	'	'
Earned premium	$1,302,525	$1,184,090	$1,019,060
Earned premium, percent change	10.00%	16.20%	'
Net investment income	35,546	37,571	40,557
Net investment income, percent change	-5.40%	-7.40%	'
Net realized gains on investments(1)	6,026	24,055	8,598
Net realized gains (losses) on investments, percent change	-74.90%	179.80%	'
Gain on sale of subsidiaries	0	2,922	4,139
Gain on sale of subsidiaries, percent change	-100.00%	-29.40%	'
Other income	707	996	261
Other income, percent change	-29.00%	281.40%	'
Total revenues	1,344,805	1,249,633	1,072,616
Total revenues, percent change	7.60%	16.50%	'
Costs and Expenses:	'	'	'
Losses and loss adjustment expenses	1,017,247	942,253	767,629
Losses and loss adjustment expense, percent change	8.00%	22.70%	'
Commissions and other underwriting expenses	258,624	249,856	231,559
Commissions and other underwriting expenses, percent change	3.50%	7.90%	'
Interest expense	13,912	12,908	10,807
Interest expense, percent change	7.80%	19.40%	'
Corporate general and administrative expenses	7,870	7,408	7,664
Corporate general and administrative expenses, percent change	6.20%	-3.30%	'
Loss on redemption of long-term debt	0	13,595	0
Loss on repurchase of debt, percent change	-100.00%	0.00%	'
Other expenses	2,073	1,526	1,334
Other expenses, percent change	35.90%	14.30%	'
Total costs and expenses	1,299,727	1,227,546	1,018,992
Total costs and expenses, percent change	5.90%	20.50%	'
Earnings before income taxes	45,078	22,088	53,624
Earnings before income taxes, percent change	104.10%	-58.80%	'
Provision for income taxes	12,445	-2,231	11,791
Provision for income taxes, percent change	'	-118.90%	'
Net Earnings	32,633	24,319	41,833
Net Earnings, percent change	34.20%	-41.90%	'
Net Earnings per Common Share:	'	'	'
Basic earnings per share (usd per share)	$2.85	$2.09	$3.45
Basic earnings per share, percent change	36.40%	-39.60%	'
Diluted earnings per share (usd per share)	$2.80	$2.04	$3.37
Diluted earnings per share, percent change	37.30%	-39.60%	'
Average Number of Common Shares:	'	'	'
Basic average number of common shares	11,451	11,660	12,111
Basic average number of common shares, percent change	-1.80%	-3.70%	'
Diluted average number of common shares	11,657	11,941	12,414
Diluted average number of common shares, percent change	-2.40%	-3.80%	'
Cash Dividends per Common Share (usd per share)	$1.20	$0.90	$0.72
Cash Dividends per Common Share, percent change	33.30%	25.00%	'
Net realized gains before impairment losses	7,495	25,447	10,045
Net realized gains before impairment losses, percent change	-70.50%	153.30%	'
Total other-than-temporary impairment (OTTI) losses	-3,772	-1,404	-2,302
Total other-than-temporary impairment (OTTI) losses, percent change	168.70%	-39.00%	'
Non-credit portion in other comprehensive income	2,338	44	1,040
Non-credit portion in other comprehensive income, percent change	'	-95.80%	'
OTTI losses reclassified from other comprehensive income	-33	-32	-185
OTTI losses reclassified from other comprehensive income, percent change	3.30%	-82.50%	'
Net impairment losses recognized in earnings	($1,468)	($1,393)	($1,447)
Net impairment losses recognized in earnings, percent change	5.40%	-3.70%	'

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net earnings	$32,633	$24,319	$41,833
Other comprehensive (loss) income before tax:	'	'	'
Net change in postretirement benefit liability	906	-1,487	-272
Unrealized gains (losses) on investments:	'	'	'
Unrealized holding gains (losses) arising during the period	-15,227	17,129	25,532
Less: Reclassification adjustments for gains included in net earnings	-6,026	-24,055	-8,598
Unrealized gains (losses) on investments, net	-21,254	-6,926	16,934
Other comprehensive income (loss), before tax	-20,348	-8,412	16,662
Other Comprehensive Income (Loss), Tax	-7,122	-2,944	5,832
Other comprehensive income (loss), net of tax	-13,226	-5,468	10,831
Comprehensive income	$19,406	$18,851	$52,664

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments:	'	'
Fixed maturities – at fair value (amortized cost $1,345,077 and $1,278,051)	$1,354,305	$1,321,828
Equity securities – at fair value (cost $74,718 and $69,992)	91,127	73,106
Short-term investments - at fair value (cost $2,595 and $0)	2,596	0
Total investments	1,448,027	1,394,934
Cash and cash equivalents	134,211	165,182
Accrued investment income	12,772	11,926
Agents’ balances and premium receivable, net of allowances for doubtful accounts of $15,884 and $16,124	451,339	427,156
Property and equipment, net of accumulated depreciation of $53,368 and $45,339	48,061	39,301
Prepaid reinsurance premium	3,133	2,637
Recoverables from reinsurers (includes $77 and $750 on paid losses and LAE)	14,508	14,428
Deferred policy acquisition costs	88,258	88,251
Current and deferred income taxes	28,648	25,798
Receivable for securities sold	2,791	48,467
Other assets	10,242	10,236
Goodwill	75,275	75,275
Total assets	2,317,265	2,303,593
Liabilities:	'	'
Unpaid losses and loss adjustment expenses	646,577	572,894
Unearned premium	566,004	538,142
Payable to reinsurers	2	137
Long-term debt (fair value $272,632 and $288,879)	275,000	275,000
Commissions payable	19,100	18,073
Payable for securities purchased	39,887	132,440
Other liabilities	113,936	110,665
Total liabilities	1,660,507	1,647,351
Commitments and contingencies (See Note 14)	'	'
Shareholders’ equity:	'	'
Common stock, no par value (50,000,000 shares authorized; 21,599,047 and 21,493,354 shares issued)	21,684	21,529
Additional paid-in capital	368,902	361,845
Retained earnings	685,011	666,199
Accumulated other comprehensive income, net of tax	16,624	29,851
Treasury stock, at cost (10,095,416 and 9,888,680 shares)	-435,463	-423,181
Total shareholders’ equity	656,758	656,242
Total liabilities and shareholders’ equity	$2,317,265	$2,303,593

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Fixed maturities, amortized costs	$1,345,077	$1,278,051
Equity securities, cost	74,718	69,992
Short-term investments, cost	2,597	0
Agents' balances and premium receivable, allowance for doubtful accounts	15,884	16,124
Property and equipment, accumulated depreciation	53,368	45,339
Recoverable from reinsurers, paid losses and loss adjustement expenses	77	750
Long-term debt	$272,632	$288,879
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	21,599,047	21,493,354
Treasury stock, shares	10,095,416	9,888,680

Consolidated_Statements_Of_Cha

Consolidated Statements Of Changes In Shareholders' Equity (USD $)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net of Tax	Treasury Stock
In Thousands, unless otherwise specified
Beginning Balance at Dec. 31, 2010	$655,026	$21,228	$349,742	$619,335	$24,488	($359,766)
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net earnings	41,833	0	0	41,833	0	0
Net change in postretirement benefit liability	-177	0	0	0	-177	0
Change in unrealized gain on investments	9,721	0	0	0	9,721	0
Change in non-credit component of impairment losses on fixed maturities	1,286	0	0	0	1,286	0
Comprehensive income	52,664	'	'	'	'	'
Dividends paid to common shareholders	-8,745	0	0	-8,745	0	0
Shares issued and share-based compensation expense, including tax benefit	6,298	130	6,168	0	0	0
Acquisition of treasury stock	-43,454	0	0	0	0	-43,454
Ending Balance at Dec. 31, 2011	661,789	21,358	355,911	652,423	35,319	-403,221
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net earnings	24,319	0	0	24,319	0	0
Net change in postretirement benefit liability	-966	0	0	0	-966	0
Change in unrealized gain on investments	-5,866	0	0	0	-5,866	0
Change in non-credit component of impairment losses on fixed maturities	1,365	0	0	0	1,365	0
Comprehensive income	18,851	'	'	'	'	'
Dividends paid to common shareholders	-10,544	0	0	-10,544	0	0
Shares issued and share-based compensation expense, including tax benefit	6,106	172	5,934	0	0	0
Acquisition of treasury stock	-19,960	0	0	0	0	-19,960
Ending Balance at Dec. 31, 2012	656,242	21,529	361,845	666,199	29,851	-423,181
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net earnings	32,633	0	0	32,633	0	0
Net change in postretirement benefit liability	589	0	0	'	589	0
Change in unrealized gain on investments	-12,724	0	0	0	-12,724	0
Change in non-credit component of impairment losses on fixed maturities	-1,091	0	0	0	-1,091	0
Comprehensive income	19,406	'	'	'	'	'
Dividends paid to common shareholders	-13,821	0	0	-13,821	0	0
Shares issued and share-based compensation expense, including tax benefit	7,212	155	7,057	0	0	0
Acquisition of treasury stock	-12,282	0	0	0	0	-12,282
Ending Balance at Dec. 31, 2013	$656,758	$21,684	$368,902	$685,011	$16,624	($435,463)

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities:	'	'	'
Net earnings	$32,633	$24,319	$41,833
Adjustments:	'	'	'
Depreciation	9,030	8,565	8,775
Amortization	18,936	9,122	8,346
Net realized gains on investments	-6,026	-24,055	-8,598
Loss on redemption of long-term debt	0	13,595	0
Loss on disposal of property and equipment	-120	52	726
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	0	-2,922	-4,139
Share-based compensation expense	4,009	3,194	4,182
Excess tax benefits from share-based payment arrangements	-573	-896	-966
Non-cash activity related to rabbi trust	126	65	-15
Decrease (increase) in accrued investment income	-845	-1,165	1,272
Decrease (increase) in agents’ balances and premium receivable	-24,183	-44,535	-45,945
Decrease (increase) decrease in reinsurance receivables	-575	-216	1,850
Decrease (increase) in deferred policy acquisition costs	-7	-8,180	-10,146
Decrease (increase) in other assets	4,583	-15,911	2,645
Increase (decrease) in unpaid losses and loss adjustment expenses	73,683	77,491	17,571
Increase (decrease) in unearned premium	27,862	63,614	57,157
Increase (decrease) in payable to reinsurers	-135	92	4
Increase (decrease) in other liabilities	4,860	36,143	-7,988
Net cash provided by operating activities	143,258	138,371	66,562
Investing Activities:	'	'	'
Purchases of fixed maturities	-774,640	-699,797	-391,354
Purchases of equity securities	-11,100	-69,002	-2,000
Purchases of short-term investments	-5,798	0	0
Purchases of property and equipment	-17,840	-9,235	-23,064
Maturities and redemptions of fixed maturities	193,421	182,292	141,416
Proceeds from sale of subsidiary companies	0	9,107	15,900
Proceeds from sale of fixed maturities	454,647	452,127	254,295
Proceeds from sale of equity securities	7,244	39,502	7,871
Proceeds from sale of short-term investments	3,204	0	0
Proceeds from sale of property and equipment	171	11	0
Net cash (used in) provided by investing activities	-150,691	-94,995	3,065
Financing Activities:	'	'	'
Proceeds from stock options exercised and employee stock purchases, including tax benefit	3,203	2,911	2,116
Excess tax benefits from share-based payment arrangements	573	896	966
Proceeds from issuance of long-term debt	0	273,213	0
Redemption of long-term debt	0	-208,122	0
Principal payments under capital lease obligations	-882	-673	0
Acquisition of treasury stock	-12,612	-19,643	-43,803
Dividends paid to shareholders	-13,821	-10,544	-8,745
Net cash (used in) provided by financing activities	-23,538	38,039	-49,465
Net (decrease) increase in cash and cash equivalents	-30,971	81,415	20,163
Cash and cash equivalents at beginning of period	165,182	83,767	63,605
Cash and cash equivalents at end of period	$134,211	$165,182	$83,767

Significant_Reporting_and_Acco

Significant Reporting and Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant Reporting and Accounting Policies	'
	Significant Reporting and Accounting Policies
	Nature of Operations
	We currently write personal automobile insurance with a concentration on nonstandard automobile insurance, mono-line commercial vehicle insurance and classic collector automobile insurance. Personal auto insurance accounts for 93% of our total gross written premium and we primarily write it in seven states. We wrote approximately 48% of our personal auto gross written premium in the state of California during 2013.
	Basis of Consolidation and Reporting
	The accompanying consolidated financial statements include our accounts and those of our subsidiaries. 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 inter-company transactions and balances.
	We have evaluated events that occurred after December 31, 2013 for recognition or disclosure in our financial statements and the notes to the financial statements.
	Schedules may not foot due to rounding.
	Estimates
	The preparation of the financial statements in conformity with generally accepted accounting principles of the United States requires us to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Changes in circumstances could cause actual results to differ materially from those estimates.
	Investments
	We consider all fixed maturity securities “available for sale” and report them at fair value with unrealized gains or losses reported after-tax in accumulated other comprehensive income within shareholders' equity.  We base the fair values of investments on prices quoted in the most active market for each security. If quoted prices are not available, we estimate fair value based on the fair value of comparable securities, discounted cash flow models or similar methods. We treat premium and discounts on mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMO”), collateralized loan obligations (“CLO”) and asset-backed securities (“ABS”) as a yield adjustment over the estimated life of the securities, adjusted for anticipated prepayments, using the interest method. We base prepayment assumptions on data from widely accepted third party data sources or internal estimates. We review the amortized cost and effective yield of the security periodically and adjust it to reflect actual prepayments and changes in expectations. For high credit quality MBS and ABS (those rated AA or above at the time of purchase), the adjustments to amortized cost are recorded as a charge or credit to net investment income in accordance with the retrospective method. For MBS and ABS rated below AA, we adjust the yield prospectively for any changes in estimated cash flows.
	Gains or losses on securities are determined on the specific identification basis.  When we consider impairment in the value of a specific investment other-than-temporary (“OTTI”), the cost basis of that investment is reduced. For fixed maturity securities that are OTTI, 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 OTTI, but we do not intend to and are not more than likely to be required to sell the security prior to its recovery to amortized cost, the amount of the impairment is separated into a credit loss component and the amount due to all other factors. 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 (1) the effective interest rate implicit at the date of acquisition for non-structured securities or (2) the book yield for structured securities. The techniques and assumptions for determining the best estimate of cash flows varies 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.
	Securities having a fair value of approximately $26.1 million at December 31, 2013 were on deposit as required by regulatory authorities.
	Cash and Cash Equivalents
	We consider liquid investments having original maturities of three months or less when purchased to be cash equivalents for purposes of the financial statements.
	Reinsurance
	Our insurance subsidiaries cede insurance to other companies. To the extent that any reinsuring companies are unable to meet obligations under agreements covering reinsurance ceded, our insurance subsidiaries would remain liable. We estimate amounts recoverable from reinsurers in a manner consistent with the claim liability associated with the reinsured policies. Our insurance subsidiaries report as assets (a) the estimated reinsurance recoverable on unpaid losses, including an estimate for losses incurred but not reported, and (b) amounts paid to reinsurers applicable to the unexpired terms of policies in force.
	Deferred Policy Acquisition Costs (“DPAC”)
	We defer and charge against income ratably over the terms of the related policies policy acquisition costs (principally commissions, premium taxes and other marketing and underwriting expenses) related to the successful production of premium writings.  The method followed in computing DPAC limits the amount of such costs to their estimated realizable value without any consideration for anticipated investment income. Each quarter, we evaluate the recoverability of these costs. The DPAC amortization expense recognized in the Consolidated Statements of Earnings during 2013, 2012 and 2011 was $206.7 million, $194.9 million and $171.6 million, respectively.
	Goodwill
	In accordance with the Goodwill topic of the FASB Accounting Standards Codification (“FASC”), we perform impairment test procedures for goodwill on an annual basis. These procedures require us to calculate the fair value of goodwill, compare the result to our carrying value and record the amount of any shortfall as an impairment charge.
	We performed this test as of October 1, 2013 using a variety of methods, including estimates of future discounted cash flows and comparisons of our market value to that of our major competitors. Our cash flow projections rely on assumptions that are subject to uncertainty, including premium growth, loss and loss adjustment expense ratios, interest rates and capital requirements.
	The October 1, 2013 test results indicated that the fair value of our goodwill exceeded our carrying value and therefore no impairment charge was required at that date. Additionally, there was no indication of impairment at December 31, 2013.
	Unpaid Losses and Loss Adjustment Expenses (“LAE”)
	The net liabilities stated for unpaid claims and for expenses of investigation and adjustment of unpaid claims are based upon (a) the accumulation of case estimates for losses reported prior to the close of the accounting period on direct business written; (b) estimates received from ceding reinsurers and insurance pools and associations; (c) estimates of unreported losses based on past experience; (d) estimates based on experience of expenses for investigating and adjusting claims and (e) the current state of the law and coverage litigation. These liabilities are subject to the impact of changes in claim amounts and frequency and other factors. We have not reduced liabilities for unpaid losses and LAE for reinsurance recoverables; such recoverables are recorded separately as assets. Changes in estimates of the liabilities for losses and LAE are reflected in the Consolidated Statements of Earnings in the period in which determined. In spite of the variability inherent in such estimates, we believe that the liabilities for unpaid losses and LAE are adequate.
	Premium and Receivables
	We earn insurance premium written over the terms of the policies on a pro rata basis.  Unearned premium represents that portion of premium written which is applicable to the unexpired terms of policies in force.  On reinsurance assumed from other insurance companies or written through various underwriting organizations, we base unearned premium on reports received from such companies and organizations. We provide insurance and related services to individuals and small commercial accounts throughout the United States and offer a variety of payment plans. We establish an allowance for doubtful accounts based on the relationship, on a policy basis, between receivables and unearned premium, or an aging analysis of past due balances. We charge off premium due from insureds if not collected within 90 days of the policies' expiration or cancellation dates. However, even after we charge off premium, attempts to collect the premium continue.
	Income Taxes
	We file a consolidated federal income tax return, which includes all 80% and greater owned U.S. subsidiaries. We and our 80% and greater owned subsidiaries are parties to a tax allocation agreement, which designates how members of the tax group share tax payments. In general, each subsidiary agrees to pay us taxes computed on a separate company taxable income basis. We agree to pay each subsidiary for the tax benefit, if any, of net losses used by other members of the consolidated group.
	We calculate deferred income taxes using the “asset and liability method.” Under this method, deferred income tax assets and liabilities are determined based on differences between financial reporting and tax basis and are measured using enacted tax rates. We recognize deferred tax assets if it is more likely than not that a benefit will be realized. We aggregate current and deferred tax assets and liabilities on the Consolidated Balance Sheets.
	Property and Equipment
	We report property and equipment balances at cost less accumulated depreciation. Property and equipment, which consists of land, buildings, leasehold improvements, computer equipment, capitalized software and furniture and fixtures, was $48.1 million at December 31, 2013, net of accumulated depreciation of $53.4 million. We recognized $1.8 million, net of accumulated depreciation of $1.7 million, of equipment held under capital leases in other assets on the Consolidated Balance Sheets with the related lease obligations recorded in other liabilities. We compute depreciation over the estimated useful lives of the assets using the straight-line method. Property and equipment is a separate line item on the Consolidated Balance Sheets and we allocate the related expenses, including amortization of assets recorded under capital leases, to one or more of the following line items on the Consolidated Statements of Earnings depending on the asset: losses and LAE, commissions and other underwriting expenses, corporate general and administrative expenses or other expenses.
	Benefit Plans
	We provide retirement benefits to qualified employees and healthcare and life insurance benefits to eligible retirees. We also provide post-employment benefits to former or inactive employees (primarily those on disability) who were not deemed retired under other company plans. The projected future cost of providing these benefits is expensed over the period the employees earn such benefits.
	Recently Issued Accounting Standards
	Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income
	In February 2013, the FASB issued guidance requiring expanded disclosures about amounts reclassified out of accumulated
	other comprehensive income ("AOCI"). Entities are required to present reclassifications by component when reporting changes in AOCI balances. The guidance requires the presentation of significant amounts reclassified out of AOCI by income statement
	line item. We adopted the new guidance as of March 31, 2013. The new guidance affects disclosures only and therefore had no
	impact on our results of operations or financial position.

Fair_Value

Fair Value	12 Months Ended
	Dec. 31, 2013
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
	December 31, 2013		Level 1				Level 2				Level 3				Total
	Cash and cash equivalents		$	134,211			$	0			$	0			$	134,211
	Fixed maturity securities:
	U.S. government		64,496				171				0				64,666
	State and municipal		0				487,111				0				487,111
	Mortgage-backed securities:
	Residential		0				323,346				0				323,346
	Commercial		0				35,816				0				35,816
	Total mortgage-backed securities		$	0			$	359,162			$	0			$	359,162
	Collateralized mortgage obligations		0				1,291				0				1,291
	Asset-backed securities		0				70,573				686				71,259
	Corporates		0				365,642				5,175				370,816
	Total fixed maturities		$	64,496			$	1,283,949			$	5,860			$	1,354,305
	Equity securities		91,127				0				0				91,127
	Short-term investments		1,200				1,396				0				2,596
	Total cash and investments		$	291,033			$	1,285,345			$	5,860			$	1,582,238
	Percentage of total cash and investments		18.4		%		81.2		%		0.4		%		100		%
			Fair Value
	December 31, 2012		Level 1				Level 2				Level 3				Total
	Cash and cash equivalents		$	165,182			$	0			$	0			$	165,182
	Fixed maturity securities:
	U.S. government		81,529				296				3,712				85,537
	Government-sponsored entities		0				22,140				0				22,140
	State and municipal		0				457,113				0				457,113
	Mortgage-backed securities:
	Residential		0				281,907				0				281,907
	Commercial		0				13,768				0				13,768
	Total mortgage-backed securities		$	0			$	295,675			$	0			$	295,675
	Collateralized mortgage obligations		0				19,307				0				19,307
	Asset-backed securities		0				79,257				0				79,257
	Corporates		0				353,697				9,101				362,797
	Total fixed maturities		$	81,529			$	1,227,486			$	12,813			$	1,321,828
	Equity securities		73,106				0				0				73,106
	Total cash and investments		$	319,817			$	1,227,486			$	12,813			$	1,560,116
	Percentage of total cash and investments		20.5		%		78.7		%		0.8		%		100		%
	We do not report our long-term debt at fair value in the Consolidated Balance Sheets. The $272.6 million and $288.9 million fair value of our long-term debt at December 31, 2013 and December 31, 2012, 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 invested in a rabbi trust. Level 2 securities are comprised of 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"). Transfers between levels are recognized at the beginning of the reporting period.
	A third party nationally recognized pricing service provides the fair value of securities in Level 2. 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 changes in the Level 3 fair value category (in thousands):
		Twelve months ended
		31-Dec-13
		U.S. Government				State and Municipal				Mortgage-Backed Securities				Collateralized Mortgage Obligations				Corporates			Asset-Backed Securities			Total
	Balance at beginning of period	$	3,712			$	0			$	0			$	0			$	9,101		$	0		$	12,813
	Total gains or (losses), unrealized or realized
	Included in net earnings	268				0				0				0				583			0			852
	Included in other comprehensive income	(418		)		0				0				0				(477		)	1			(895		)
	Purchases	0				0				0				0				0			0			0
	Sales	(2,968		)		0				0				0				(877		)	0			(3,845		)
	Settlements	(594		)		0				0				0				(1,824		)	(310		)	(2,729		)
	Transfers in	0				0				0				0				0			995			995
	Transfers out	0				0				0				0				(1,331		)	0			(1,331		)
	Balance at end of period	$	0			$	0			$	0			$	0			$	5,175		$	686		$	5,860
		Twelve months ended
		December 31, 2012
		U.S. Government				State and Municipal				Mortgage-Backed Securities				Collateralized Mortgage Obligations				Corporates			Asset-Backed Securities			Total
	Balance at beginning of period	$	4,438			$	0			$	0			$	509			$	10,426		$	0		$	15,374
	Total gains or (losses), unrealized or realized
	Included in net earnings	(77		)		(15		)		0				(74		)		269			0			102
	Included in other comprehensive income	(52		)		14				32				93				309			1			397
Purchases	0				4,002				7,156				0				0			4,005			15,163
Sales	0				0				0				(483		)		(254		)	0			(737		)
Settlements	(597		)		(2,750		)		0				(44		)		(2,344		)	0			(5,735		)
Transfers in	0				2,781				0				0				2,889			0			5,670
Transfers out	0				(4,031		)		(7,188		)		0				(2,195		)	(4,005		)	(17,420		)
Balance at end of period	$	3,712			$	0			$	0			$	0			$	9,101		$	0		$	12,813
Of the $5.9 million fair value of securities in Level 3 at December 31, 2013, which consisted of nine securities, we priced six based on non-binding broker quotes and one security, which was included in Level 3 because it was not rated by a nationally recognized statistical rating organization, was priced by a nationally recognized pricing service. We manually calculated the remaining two securities, which have a combined fair value of $0.7 million.
Quantitative information about the significant unobservable inputs used in the fair value measurement of these manually priced securities at December 31, 2013 is as follows (in millions):
	Fair Value				Valuation Technique		Unobservable Input		Value Used
Corporate bond	$	0.1			Recovery rate1		Probability of default		100%
Corporate bond	0.6				Discounted cash flow		Comparable credit rating2		CCC
Total	$	0.7
1 Recovery rate for senior unsecured bonds as indicated in Moody's Investor's Service Annual Default Study: Corporate Default and Recovery Rates, 1920-2012.
2 This bond is not rated, but is supported by JC Penney Corporation trust assets; therefore a JC Penney comparable bond rating is used.
The significant unobservable inputs used in the fair value measurement of our manually-priced corporate bonds are a
probability of default assumption and an assigned credit rating. Significant changes in either of these inputs in isolation could
result in a significant change in fair value measurement. Generally, a reduction in probability of default would increase
security valuation. A change in the credit rating assumption would change the yield spread associated with that bond, and thus
the yield used in discounting the cash flows to arrive at the security’s valuation.
We transferred approximately $1.3 million and $17.4 million of securities in Level 3 to Level 2 during 2013 and 2012, respectively, because we obtained a price for those securities from a third party nationally recognized pricing service. We transferred approximately $1.0 million and $5.7 million of securities into Level 3 from Level 2 during 2013 and 2012, respectively, because we could not obtain a price from a third party nationally recognized pricing service or because a rating by a NRSRO was not available. There were no transfers between Levels 1 and 2 during 2013 or 2012.
The gains or losses included in net earnings are included in the line item net realized gains (losses) 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):
	December 31, 2013								December 31, 2012
	Carrying				Fair				Carrying				Fair
	Value				Value				Value				Value
Assets:
Cash and cash equivalents	$	134,211			$	134,211			$	165,182			$	165,182
Available-for-sale securities
Fixed maturities	1,354,305				1,354,305				1,321,828				1,321,828
Equity securities	91,127				91,127				73,106				73,106
Short-term investments	2,596				2,596				0				0
Total cash and investments	$	1,582,238			$	1,582,238			$	1,560,116			$	1,560,116
Liabilities:
Long-term debt	$	275,000			$	272,632			$	275,000			$	288,879
See Note 3 to the Consolidated Financial Statements for additional information on investments and Note 4 for additional information on long-term debt.

Investments

Investments	12 Months Ended
	Dec. 31, 2013
Investments [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 twelve months ended December 31, 2013 were $465.1 million. These proceeds are net of $2.8 million of receivable for securities sold during 2013 that had not settled at December 31, 2013. The proceeds from sales of securities for the twelve months ended December 31, 2012 were $491.6 million. These proceeds are net of $48.5 million of receivable for securities sold during 2012 that had not settled at December 31, 2012. The proceeds from sales of securities for the twelve months ended December 31, 2011 were $262.2 million. These proceeds are net of $1.2 million of receivable for securities sold during 2011 that had not settled at December 31, 2011. 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):
		December 31, 2013
		Amortized				Gross				Gross				Fair Value				OTTI
		Cost or Cost				Unrealized				Unrealized								Recognized in
						Gains				Losses								Accumulated
																		OCI(1)
	Fixed maturities:
	U.S. government	$	64,194			$	900			$	(427	)		$	64,666			$	0
	State and municipal	478,092				10,789				(1,771		)		487,111				(73		)
	Mortgage-backed securities:
	Residential	330,169				1,985				(8,809		)		323,346				(2,435		)
	Commercial	35,781				339				(304		)		35,816				0
	Total mortgage-backed securities	$	365,950			$	2,324			$	(9,113	)		$	359,162			$	(2,435	)
	Collateralized mortgage obligations	1,228				63				0				1,291				(161		)
	Asset-backed securities	71,183				178				(103		)		71,259				(8		)
	Corporates	364,430				9,086				(2,700		)		370,816				(612		)
	Total fixed maturities	$	1,345,077			$	23,340			$	(14,112	)		$	1,354,305			$	(3,290	)
	Equity securities	74,718				16,409				0				91,127				0
	Short-term investments	2,595				1				0				2,596				0
	Total	$	1,422,390			$	39,750			$	(14,112	)		$	1,448,027			$	(3,290	)
		December 31, 2012
		Amortized				Gross				Gross				Fair Value				OTTI
		Cost or Cost				Unrealized				Unrealized								Recognized in
						Gains				Losses								Accumulated
																		OCI(1)
	Fixed maturities:
	U.S. government	$	83,320			$	2,225			$	(8	)		$	85,537			$	0
	Government-sponsored entities	21,401				740				0				22,140				0
	State and municipal	438,367				19,109				(364		)		457,113				(53		)
	Mortgage-backed securities:
	Residential	275,668				6,511				(272		)		281,907				(292		)
	Commercial	13,023				749				(3		)		13,768				0
	Total mortgage-backed securities	$	288,691			$	7,259			$	(275	)		$	295,675			$	(292	)
	Collateralized mortgage obligations	18,847				469				(9		)		19,307				(244		)
	Asset-backed securities	78,931				435				(109		)		79,257				(51		)
	Corporates	348,494				14,807				(503		)		362,797				(972		)
	Total fixed maturities	$	1,278,051			$	45,045			$	(1,268	)		$	1,321,828			$	(1,612	)
	Equity securities	69,992				3,115				0				73,106				0
	Total	$	1,348,042			$	48,160			$	(1,268	)		$	1,394,934			$	(1,612	)
	(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 table sets 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
	December 31, 2013	Number of		Fair				Gross				Unrealized			Number of		Fair				Gross			Unrealized
		Securities		Value				Unrealized				Losses as			Securities		Value				Unrealized			Losses as
		with						Losses				% of Cost			with						Losses			% of Cost
		Unrealized													Unrealized
		Losses													Losses
	Fixed maturities:
	U.S. government	11		$	26,396			$	(427	)		1.6	%		0		$	0			$	0		0	%
	State and municipal	51		121,431				(1,425		)		1.2	%		4		8,062				(346		)	4.1	%
	Mortgage-backed securities:
	Residential	229		207,821				(7,064		)		3.3	%		34		39,659				(1,744		)	4.2	%
	Commercial	11		22,311				(290		)		1.3	%		1		756				(14		)	1.8	%
	Total mortgage-backed securities	240		$	230,133			$	(7,354	)		3.1	%		35		$	40,415			$	(1,758	)	4.2	%
	Collateralized mortgage obligations	0		0				0				0	%		0		0				0			0	%
	Asset-backed securities	18		14,738				(103		)		0.7	%		0		0				0			0	%
	Corporate	90		115,735				(2,621		)		2.2	%		1		1,212				(79		)	6.1	%
	Total fixed maturities	410		$	508,432			$	(11,929	)		2.3	%		40		$	49,688			$	(2,183	)	4.2	%
	Equity securities	0		0				0				0	%		0		0				0			0	%
	Short-term investments	0		0				0				0	%		0		0				0			0	%
	Total	410		$	508,432			$	(11,929	)		2.3	%		40		$	49,688			$	(2,183	)	4.2	%
	Less than 12 Months													12 Months or More
December 31, 2012	Number of		Fair				Gross				Unrealized			Number of		Fair				Gross			Unrealized
	Securities		Value				Unrealized				Losses as			Securities		Value				Unrealized			Losses as
	with						Losses				% of Cost			with						Losses			% of Cost
	Unrealized													Unrealized
	Losses													Losses
Fixed maturities:
U.S. government	3		$	11,758			$	(8	)		0.1	%		0		$	0			$	0		0	%
State and municipal	32		52,399				(364		)		0.7	%		0		0				0			0	%
Mortgage-backed securities:
Residential	42		75,927				(272		)		0.4	%		0		0				0			0	%
Commercial	1		73				0				0.6	%		1		259				(3		)	1.1	%
Total mortgage-backed securities	43		$	76,000			$	(272	)		0.4	%		1		$	259			$	(3	)	1.1	%
Collateralized mortgage obligations	2		1,264				(9		)		0.7	%		0		0				0			0	%
Asset-backed securities	6		11,941				(57		)		0.5	%		2		6,138				(52		)	0.8	%
Corporate	58		70,540				(503		)		0.7	%		0		0				0			0	%
Total fixed maturities	144		$	223,903			$	(1,213	)		0.5	%		3		$	6,397			$	(55	)	0.8	%
Equity securities	0		0				0				0	%		0		0				0			0	%
Total	144		$	223,903			$	(1,213	)		0.5	%		3		$	6,397			$	(55	)	0.8	%
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:
•	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;
•	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;
•	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 any of the following: a fair value of less than 95% of its book value, an unrealized loss that equals or exceeds $100,000 or one or more impairment charges recorded in the past. In addition, we review positions held related to an issuer of a previously impaired security.
The following table summarizes those securities, excluding the rabbi trust, with unrealized gains or losses:
	31-Dec-13			December 31, 2012
Number of positions held with unrealized:
Gains	590			749
Losses	450			147
Number of positions held that individually exceed unrealized:
Gains of $500,000	1			3
Losses of $500,000	0			0
Percentage of positions held with unrealized:
Gains that were investment grade	81	%		81	%
Losses that were investment grade	93	%		86	%
Percentage of fair value held with unrealized:
Gains that were investment grade	88	%		92	%
Losses that were investment grade	95	%		93	%
The following table sets forth the amount of unrealized losses, excluding the rabbi trust, by age and severity at December 31, 2013 (in thousands):
	Fair Value of				Total Gross				Less Than 5%*				5% - 10%*				Total Gross
	Securities with				Unrealized												Greater
	Unrealized				Losses												Than 10%*
	Losses
Age of Unrealized Losses:
Three months or less	$	205,542			$	(1,674	)		$	(1,654	)		$	(20	)		$	0
Four months through six months	14,964				(130		)		(130		)		0				0
Seventh months through nine months	269,559				(9,851		)		(4,957		)		(4,894		)		0
Ten months through twelve months	39,685				(1,112		)		(757		)		(355		)		0
Greater than twelve months	28,371				(1,344		)		(571		)		(774		)		0
Total	$	558,121			$	(14,112	)		$	(8,068	)		$	(6,044	)		$	0
*	As a percentage of amortized cost or cost.
The change in unrealized gains (losses) on securities included the following (in thousands):
	Pretax
	Fixed  Maturities				Equity Securities				Short-Term Investments				Tax Effects				Net
December 31, 2013
Unrealized holding gains (losses) on securities arising during the period	$	(29,199	)		$	13,971			$	1			$	5,330			$	(9,898	)
Realized (gains) losses included in net earnings	(6,818		)		(677		)		0				2,623				(4,872		)
Impairment losses recognized in net earnings	1,468				0				0				(514		)		954
Change in unrealized gain (loss) on securities, net	$	(34,549	)		$	13,294			$	1			$	7,439			$	(13,815	)
December 31, 2012
Unrealized holding gains (losses) on securities arising during the period	$	10,678			$	6,451			$	0			$	(5,995	)		$	11,134
Realized (gains) losses included in net earnings(1)	(11,594		)		(13,853		)		0				8,907				(16,541		)
Impairment losses recognized in net earnings	1,393				0				0				(487		)		905
Change in unrealized gain (loss) on securities, net	$	476			$	(7,402	)		$	0			$	2,424			$	(4,502	)
December 31, 2011
Unrealized holding gains (losses) on securities arising during the period	$	25,233			$	299			$	0			$	(8,936	)		$	16,596
Realized (gains) losses included in net earnings	(7,295		)		(2,750		)		0				3,516				(6,529		)
Impairment losses recognized in net earnings	1,447				0				0				(506		)		940
Change in unrealized gain (loss) on securities, net	$	19,384			$	(2,451	)		$	0			$	(5,927	)		$	11,007
(1) The tax effect is exclusive of the release of the deferred tax valuation allowance of $6.4 million in 2012.
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
to amortized cost, we separate the amount of the impairment into a credit loss component and the amount due to all other
factors. 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 (1) the effective interest rate implicit at the date of acquisition for non-structured securities or (2) 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 noncredit 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.
The following table is a progression of credit losses on fixed maturity securities that were bifurcated between a credit and noncredit component (in thousands):
	2013				2012
Balance at beginning of year	$	487			$	1,728
Additions for:
Previously impaired securities	27				0
Newly impaired securities	659				110
Previously all credit	26				0
Reductions for:
Securities sold and paydowns	(206		)		(616		)
Securities that no longer have a non-credit component	(37		)		(735		)
Balance at end of year	$	956			$	487
The table below sets forth the scheduled maturities of fixed maturity securities at December 31, 2013, 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.
																	Amortized
	Fair Value																Cost
Maturity	Securities				Securities				Securities				All Fixed				All Fixed
	with				with				with No				Maturity				Maturity
	Unrealized				Unrealized				Unrealized				Securities				Securities
	Gains				Losses				Gains or
									Losses
One year or less	$	61,980			$	1,517			$	5,867			$	69,364			$	68,885
After one year through five years	423,920				140,721				1,847				566,487				553,683
After five years through ten years	149,976				125,788				0				275,764				273,351
After ten years	6,168				4,810				0				10,978				10,797
Mortgage-backed, asset-backed and collateralized mortgage obligations	143,806				285,285				2,620				431,712				438,361
Total	$	785,851			$	558,121			$	10,334			$	1,354,305			$	1,345,077
Net Investment Income
The following table shows investment income earned and investment expenses incurred (in thousands):
	Twelve months ended December 31,
	2013				2012				2011
Investment income:
Interest income on fixed maturities, cash and cash equivalents	$	36,113			$	38,234			$	41,900
Dividends on equity securities	1,711				1,415				693
Gross investment income	$	37,825			$	39,649			$	42,593
Investment expenses	(2,279		)		(2,077		)		(2,036		)
Net investment income	$	35,546			$	37,571			$	40,557

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Long-term Debt, Unclassified [Abstract]	'
Long-term Debt	'
	Long-Term Debt
	In February 2004, we issued $200 million principal of senior notes due February 2014 (the “5.5% Senior Notes”). The 5.5%
	Senior Notes accrued interest at an effective yield of 5.55% and bore a coupon of 5.5%, payable semiannually. At the time we
	issued the Senior Notes, we capitalized $2.1 million of debt issuance costs, which we amortized over the term of the 5.5%
	Senior Notes. During 2009, we repurchased $5.0 million of the 5.5% Senior Notes, bringing the outstanding principal to $195.0 million. The 5.5% Senior Notes were fully redeemed on October 17, 2012 at a price of 106.729%, or $208.1 million, plus accrued interest of $1.8 million. The remaining $0.4 million issuance costs were written off at redemption.
	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
	December 31, 2013 fair value of $272.6 million using a 209 basis point spread to the ten year U.S. Treasury Note of 3.029%.
	We paid interest on long-term debt of $13.8 million, $12.5 million and $10.7 million for the twelve months ended December 31, 2013, 2012 and 2011, respectively.
	In August 2011, 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. At December 31, 2013, there were no borrowings outstanding under the Credit Agreement.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	In the years 2013, 2012 and 2011, we paid $7.6 million, $9.0 million and $9.2 million, respectively, in 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):
		Twelve Months December 31,
		2013			2012			2011
	Earnings before income taxes	$	45,078		$	22,088		$	53,624
	Income taxes at statutory rate	15,777			7,731			18,768
	Effect of:
	Dividends-received deduction	(357		)	(296		)	(145		)
	Tax-exempt interest	(2,743		)	(3,294		)	(3,510		)
	Adjustment to valuation allowance	(48		)	(6,402		)	(3,507		)
	Other	(184		)	30			184
	Provision for income taxes as shown on the Consolidated Statements of Earnings	$	12,445		$	(2,231	)	$	11,791
	GAAP effective tax rate	27.6		%	(10.1		)%	22		%
	The total income tax provision (benefit) consists of (in thousands):
		2013			2012			2011
	Current	$	10,541		$	3,605		$	12,416
	Deferred	1,904			(5,836		)	(625		)
	Provision for income taxes	$	12,445		$	(2,231	)	$	11,791
	We generated capital losses in 2007 and 2009 that were fully utilized in 2010 and 2011. The deferred tax asset relating to the capital loss carryforward was fully offset by a valuation allowance. The valuation allowance was released through the provision for income taxes as the capital loss carryforward was utilized each year, with the final release occurring in 2011.
	A full valuation allowance was also maintained on the deferred tax asset relating to the credit portion of the reserve for other-than-temporarily impaired securities. In 2012 a security which accounted for approximately 77% of the balance in the reserve for other-than-temporarily impaired securities was sold. As of December 31, 2012, management determined that it was more likely than not that the deferred tax asset relating to the reserve for other-than-temporarily impaired securities would be recognized and the valuation allowance was released through the provision for income taxes.
	Deferred income tax assets and liabilities reflect temporary differences between the carrying amounts of assets and liabilities recognized for financial reporting purposes and the amounts recognized for tax purposes. The significant components of deferred tax assets and liabilities included in the Consolidated Balance Sheets were as follows (in thousands):
		As of December 31,
		2013			2012
	Deferred tax assets:
	Discount on loss reserves	$	7,045		$	9,066
	Unearned premium reserve	39,401			37,485
	Bad debts	5,559			5,670
	Accrued bonuses	2,442			2,269
	Deferred compensation	4,842			4,356
	Long-term incentive compensation	2,040			0
	Other	5,473			9,044
	Gross deferred tax assets	$	66,803		$	67,891
	Valuation allowance for deferred tax assets	(165		)	(213		)
		$	66,638		$	67,677
	Deferred tax liabilities:
	Deferred policy acquisition costs	$	(30,890	)	$	(30,888	)
	Investment securities – unrealized gains	(8,973		)	(16,412		)
	Other	(2,111		)	(1,138		)
	Total deferred tax liabilities	$	(41,975	)	$	(48,438	)
	Net deferred tax assets	$	24,663		$	19,240
	Current income taxes	3,985			6,558
	Current and deferred income taxes	$	28,648		$	25,798
	An analysis is performed on a quarterly basis to determine if there is sufficient evidence that it is more likely than not that the deferred tax assets will be recognized for tax purposes. The evidence that is considered in assessing the need for a valuation allowance includes: (i) sufficient future taxable income, (ii) sufficient ordinary and capital taxable income in carryback periods, (iii) the reversals of existing taxable temporary differences and (iv) tax planning strategies that could be utilized to accelerate the recognition of capital gains in the future. Based on this evaluation, it is management’s belief that the only valuation allowance required at December 31, 2013 and December 31, 2012 related to the net operating loss carryover for an inactive company that is required to file its federal tax return on a separate company basis.
	We did not have any gross unrecognized tax benefits that would exceed a materiality threshold and therefore, there was no reduction to Retained Earnings in our Consolidated Balance Sheets at January 1, 2013. The gross unrecognized tax benefit did not exceed the materiality threshold as of December 31, 2013.
	The Company is not currently under examination by the IRS and the statute of limitations has expired for all years prior to 2010.

Computation_Of_Earnings_Per_Sh

Computation Of Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Computation of 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):
		Twelve months ended December 31,
		2013		2012		2011
	Net earnings	$	32,633	$	24,319	$	41,833
	Average basic shares outstanding	11,451		11,660		12,111
	Basic net earnings per share	$	2.85	$	2.09	$	3.45
	Average basic shares outstanding	11,451		11,660		12,111
	Restricted stock not vested	46		28		72
	Dilutive effect of assumed option exercises	29		97		117
	Dilutive effect of Performance Share Plan	130		156		114
	Average diluted shares outstanding	11,657		11,941		12,414
	Diluted net earnings per share	$	2.8	$	2.04	$	3.37

ShareBased_Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-Based Compensation	'
	Share-Based Compensation
	We established the Amended and Restated 2013 Stock Incentive Plan (the “2013 Plan”), which was approved by the Company’s shareholders on May 21, 2013. Under the 2013 Plan, 750,000 shares are authorized and reserved for issuance. Upon the approval by the shareholders of the 2013 Plan, we became prohibited from issuing any further grants under the Restricted Stock Plan, Directors’ Plan, Performance Share Plan, or Stock Option Plan (collectively, the "Prior Plans"). However, all outstanding awards under the Prior Plans remain outstanding and will continue to be administered and settled with the applicable provisions of the Prior Plans.
	The number of shares issued, by plan, for share-based compensation arrangements was as follows:
		2013				2012		2011
		2013 Plan		Prior Plans
	Restricted Stock	0		0		0		72,234
	Non-employee Directors’ Stock	6,517		0		5,502		6,657
	Performance Shares	0		17,934		49,098		32,957
	Total	6,517		17,934		54,600		111,848
	Restricted Stock Plan
	On July 31, 2007, our Compensation Committee (“Committee”) approved the grant of 72,234 shares of restricted stock to
	certain officers under the Restricted Stock Plan. These shares of restricted stock vested in full on July 31, 2011. On August 2,
	2011, the Committee approved the grant of an additional 72,234 shares of restricted stock to certain officers under the
	Restricted Stock Plan. These shares will vest in full on August 2, 2014. During the vesting period, the shares of restricted stock
	will not have voting rights but will accrue dividends, which we will not pay until the shares have vested. We treat the restricted
	shares as issued and outstanding for calculation of diluted earnings per share only. Until fully vested, we will not consider the
	shares issued and outstanding for purposes of the basic earnings per share calculation.
	Stock Option Plan
	We have not granted options under this plan since 2004. We generally granted options with an exercise price equal to the closing price of our stock at the date of grant with a 10 year contractual life. All of the options under this plan have fully vested. Subject to specific limitations contained in the SOP, our Board of Directors has the ability to amend, suspend or terminate the plan at any time without shareholder approval. As of February 13, 2014, all options granted under the SOP had either expired or been exercised.
	As permitted by the Stock Compensation topic of the FASB Accounting Standards Codification, we used the modified Black-Scholes model to estimate the value of employee stock options on the date of grant that used the assumptions noted below. We based expected volatilities on historical volatilities of our stock. We judgmentally selected the expected option life to be 7.5 years, which is also the midpoint between the last vesting date and the end of the contractual term. We based the risk-free rate for periods within the contractual life of the options on the U.S. Treasury yield curve in effect at the time of grant. We based the dividend yield on expected dividends at the time of grant.
	Optionees must make payment for shares purchased upon exercise by tendering cash, by delivery of shares of common stock already owned by the optionee having a fair market value equal to the cash option price of the shares, by assigning the proceeds of a sale or loan with respect to some or all of the shares being acquired (subject to applicable law), by a combination of the foregoing or by any other method.
	Persons who received options incurred no federal income tax liability at the time of grant. Persons exercising nonqualified options recognize taxable income, and we have a tax deduction at the time of exercise to the extent of the difference between market price on the day of exercise and the exercise price. Persons exercising incentive stock options defer the recognition of taxable income until they sell the underlying common stock. Sales within two years of the date of grant or one year of the date of exercise result in taxable income to the holder and a deduction for us, both measured by the difference between the market price at the time of sale and the exercise price. Sales after such period are treated as capital transactions to the holder, and we receive no deduction. The foregoing is only a summary of the federal income tax rules applicable to options granted under the plan and is not intended to be complete. In addition, this summary does not discuss the effect of the income or other tax laws of any state or foreign country in which a participant may reside.
	We estimated the weighted-average grant date fair value of options granted during 2004 and 2003 using the modified Black-Scholes valuation model and the following weighted-average assumptions:
		2004 Grants				2003 Grants
	Weighted-average grant date fair value	$	13.87			$	5.97
	Dividend yield	0.7		%		1.4		%
	Expected volatility	33		%		33		%
	Risk-free interest rate	4.3		%		4		%
	Expected life (in years)	7.5				7.5
	Weighted-average grant exercise price	$	33.56			$	16.11
	Outstanding as of December 31, 2013	16,000				0
	The following table describes activity for our SOP for the twelve-month period ended December 31, 2013:
	Options	Number of			Weighted-				Weighted-		Aggregate
		Options			Average				Average		Intrinsic
					Exercise				Remaining		Value (a)
					Price				Term		(in millions)
									(in years)
	Outstanding as of January 1, 2013	91,357			$	31.32
	Exercised	(75,357	)		30.84
	Outstanding as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
	Vested as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
	Exercisable as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
	(a)	The intrinsic value for the stock options is calculated based on the difference between the exercise price of the underlying awards and our closing stock price as of the reporting date.
	Cash received from option exercises for the years ended December 31, 2013, 2012 and 2011 were $1.3 million, $0.6 million and $0.9 million, respectively. The actual tax benefit realized for the tax deductions from options exercised for the years ended December 31, 2013, 2012 and 2011 totaled $0.5 million, $0.6 million and $0.5 million, respectively. The total intrinsic value of options exercised during the years ended December 31, 2013, 2012 and 2011, was approximately $2.4 million, $3.9 million and $1.8 million, respectively.
	In 2013, senior executives of the company, including the CEO, surrendered to the company 15,315 shares of stock they owned in order to exercise 30,357 options.
	We have a policy of issuing new stock for the exercise of options.
	Employee Stock Purchase Plan
	Under the ESPP, all eligible full-time employees may purchase shares of our common stock at a 15% discount to the current market price. Employees may allocate up to 25% of their base salary with a maximum annual participation amount of $25,000. If a participant sells any shares purchased under the ESPP within one year, we preclude that employee from participating in the
	ESPP for one year from the date of sale. The source of shares issued to participants is treasury shares or authorized but
	previously unissued shares. The maximum number of shares that we may issue under the ESPP may not exceed 1,000,000, of which we have issued 59,945 as of December 31, 2013. Our ESPP is qualified under Section 423 of the Internal Revenue Code of 1986, as amended. We treat participants’ shares as issued and outstanding for basic and diluted earnings per share calculations.
	The amount of total compensation cost for share-based compensation arrangements was as follows (in thousands):
		Twelve months ended December 31,
		2013								2012					2011
		Expense				Tax				Expense			Tax		Expense		Tax
		Recognized in				Benefit				Recognized in			Benefit		Recognized in		Benefit
		Earnings								Earnings					Earnings
	Restricted Stock	$	1,190			$	417			$	1,190		$	417	$	960	$	336
	Non-employee Directors’ Stock Ownership Plan	385				135				300			105		350		123
	Employee Stock Purchase Plan	54				0				55			0		42		0
	Performance Shares	2,380				833				1,704			596		2,872		1,005
	Total	$	4,009			$	1,384			$	3,249		$	1,118	$	4,224	$	1,464

Benefit_Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Benefit Plans	'
	Benefit Plans
	We provide retirement benefits for all eligible employees by matching contributions made on participants' discretionary basis to participants' accounts in our qualified 401(k) Retirement Plan. Eligible employees may contribute up to a maximum of the lesser of $17,500 per year or 25% of the participant's salary in 2013. Participants age 50 or over at the end of the calendar year may make an additional elective deferral contribution of up to $5,500 for 2013. These additional contributions (commonly referred to as catch-up contributions) are not subject to the general limits that apply to 401(k) plans. The matching percentage made by us was 100% of participants' contributions up to a ceiling of 4% and 50% of the next 2% of contributions with a maximum match of $12,750 in 2013. The plan expense was $4.9 million, $4.6 million and $4.0 million for the twelve-month periods ended December 31, 2013, 2012 and 2011, respectively.
	Our Supplemental Employee Retirement Plan (“SERP”) is a non-qualified deferred compensation plan that enables eligible employees to contribute and to receive employer-matching contributions that the provisions of the 401(k) Retirement Plan or laws preclude due to limits on compensation. We amended the SERP effective January 1, 2010 to permit participants to make contributions and to permit us to make matching contributions on compensation that exceeds the statutory annual compensation limit of $255,000 for qualified defined contribution plans. We contributed $0.1 million to the SERP for each of the years ended December 31, 2013, 2012 and 2011. We maintain a rabbi trust that includes investments to fund the SERP. As of December 31, 2013, investments in the rabbi trust totaled $1.3 million. We reflected these investments at fair value as equity securities on the Consolidated Balance Sheets.
	We maintain a non-qualified deferred compensation plan for certain highly compensated employees, which permits the participants to defer a portion of their salaries and bonuses. The deferred amounts accrue interest at our approximate long-term borrowing rate. The deferred amounts are our general obligation liability and amounted to $13.8 million, $12.4 million and $11.1 million at December 31, 2013, 2012 and 2011, respectively. We credited interest of approximately $0.6 million, $0.6 million and $0.5 million for these same periods.
	We also provide post-retirement medical and life insurance benefits to certain eligible retirees. During 2006, we determined that the benefits provided under this plan were actuarially equivalent to those benefits provided by the Medicare Prescription Drug, Improvement and Modernization Act of 2003 (“MMA”). Our calculation of the accumulated post-retirement benefit obligation (“APBO”) as of December 31, 2013, 2012 and 2011 does not reflect the government subsidy provided by the MMA, other than as reflected in the insured over 65 rates going forward.
	Unrecognized actuarial gains of $1.0 million ($0.6 million net of tax) and prior service costs of $1.0 million ($0.7 million net of tax) that have not yet been recognized in net periodic post-retirement benefit cost are included in accumulated other comprehensive income at December 31, 2013. We expect to recognize a $0.1 million actuarial gain and $0.2 million of amortization of prior service costs in net periodic post-retirement benefit income during the fiscal year ended December 31, 2014.
	We recognized the unfunded status of the APBO plan of $4.5 million at December 31, 2013 in the Consolidated Balance Sheets. We expect no plan assets to be returned to us during the fiscal year ended December 31, 2014.
	The following tables show data related to the APBO plan (in thousands):
		2013				2012
	Net benefit obligation at beginning of year	$	5,004			$	3,526
	Service cost	331				119
	Interest cost	159				136
	Participant contributions	27				23
	Plan amendment	0				1,224
	Assumption change	(342		)		285
	Actuarial (gain) loss	(364		)		(45		)
	Gross benefits paid	(342		)		(264		)
	Net benefit obligation at end of year	$	4,473			$	5,004
	The 2012 $1.2 million plan amendment relates to a modification in the premium charged to eligible retirees.
	The following table discloses the components of net periodic post-retirement benefit cost (in thousands):
		2013				2012				2011
	Service cost	$	331			$	119			$	102
	Interest cost	159				136				164
	Amortization of prior service cost	199				0				0
	Amortization of net cumulative (gain)/loss	0				(23		)		(63		)
	Net periodic post-retirement benefit cost	$	690			$	232			$	202
	The following table discloses discount rates used to determine benefit obligations:
		2013			2012			2011
	Discount rate	4.1	%		3.3	%		4.00%
	The weighted average health care cost trend rate used in measuring the accumulated post-retirement benefit cost is 8.0% for 2014, declining to 5.5% in 2035.
	The following table discloses the effects of a hypothetical one percentage point increase and the effects of a hypothetical one percentage point decrease in the assumed healthcare trend rate (in thousands):
		2013				2012			2011
	A one percentage point hypothetical change in the assumed healthcare trend rate would have the following effect on the post-retirement benefit obligations:
	1% increase	$	349			389			311
	1% decrease	(318		)		(363	)		(276		)
	A one percentage point hypothetical change in the assumed healthcare trend rate would have the following effect on the aggregate of the service and interest cost components of net periodic post-retirement healthcare benefit costs:
	1% increase	$	53			56			$	35
	1% decrease	(47		)		(49	)		(29		)
	The following table reconciles the beginning and ending balances of the fair value of plan assets for the years ended December 31, 2013 and 2012 (in thousands):
		2013				2012
	Fair value of plan assets at beginning of year	$	0			$	0
	Employer contributions	315				241
	Participant contributions	27				23
	Gross benefits paid	(342		)		(264		)
	Fair value of plan assets at end of year	$	0			$	0
	The following table presents the funded status and the amounts recognized in the Consolidated Balance Sheets (in thousands):
		2013				2012
	Fair value of plan assets	$	0			$	0
	Benefit obligations	(4,473		)		(5,004		)
	Funded status at end of year	$	(4,473	)		$	(5,004	)
	Contributions made after the measurement date	0				0
	Unrecognized actuarial net (gain) loss	0				0
	Unrecognized prior service cost	0				0
	Net amount recognized at end of year	$	(4,473	)		$	(5,004	)
	The following table presents the ten-year forecast and best estimate of expected benefit payments (in thousands):
		2013						2012					2011
	2014	$	292			2013		$	315			2012	241
	2015	304				2014		341				2013	250
	2016	346				2015		356				2014	258
	2017	361				2016		390				2015	258
	2018	398				2017		395				2016	264
	2019-2023	2,459				2018-2022		2,474				2017-2021	1,318
	Ten Year Total	$	4,160					$	4,270				2,590
Our best estimate of contributions expected to be paid to the plan during the fiscal year beginning January 1, 2014 is $0.3 million.

Quarterly_Operating_Results_Un

Quarterly Operating Results (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Operating Results	'
	Quarterly Operating Results (Unaudited)
	While we recognize insurance premium on a relatively level basis, claim losses related to adverse weather (snow, hail, hurricanes, tornadoes, etc.) may be seasonal. Quarterly results rely heavily on estimates and are not necessarily indicative of results for longer periods.
	The following are quarterly results of our consolidated operations for the three years ended December 31, 2013 (in thousands, except per share amounts):
		1st Quarter		2nd Quarter		3rd Quarter			4th Quarter		Total Year
	2013
	Revenues	$	330,802	$	340,704	$	334,963		$	338,336	$	1,344,805
	Net earnings	8,662		7,408		7,195			9,368		32,633
	Net earnings per share:
	Basic	$	0.75	$	0.65	$	0.63		$	0.82	$	2.85
	Diluted	0.74		0.64		0.62			0.81		2.8
	2012
	Revenues	$	287,402	$	305,983	$	313,734		$	342,515	$	1,249,633
	Net earnings	4,294		6,954		5,154			7,917		24,319
	Net earnings per share:
	Basic	$	0.37	$	0.59	$	0.44		$	0.68	$	2.09
	Diluted	0.35		0.58		0.43			0.67		2.04
	2011
	Revenues	$	252,288	$	264,209	$	266,127		$	289,992	$	1,072,616
	Net earnings	10,231		6,825		6,733			18,044		41,833
	Net earnings per share:
	Basic	$	0.83	$	0.56	$	0.56		$	1.53	$	3.45
	Diluted	0.81		0.54		0.55			1.49		3.37
	Net realized gains (losses) on investments amounted to:
		1st Quarter		2nd Quarter		3rd Quarter			4th Quarter		Total Year
	2013	$	3,824	$	794	$	(546	)	$	1,955	$	6,026
	2012	238		2,166		268			21,382		24,055
	2011	2,923		1,959		722			2,995		8,598

Insurance_Reserves

Insurance Reserves	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Insurance Reserves	'
	Insurance Reserves
	Our insurance reserves consist of business produced directly by our wholly owned insurance subsidiaries, the Assumed Agency Business and two other unaffiliated insurance companies.
	Incurred but not reported (“IBNR”) reserves for the direct and Assumed Agency Business are established for the quarter and year-end based on a quarterly reserve analysis by our actuarial staff. Various standard actuarial tests are applied to subsets of the business at a state, product and coverage basis. Included in the analyses are the following:
	•	Paid and incurred extrapolation methods utilizing paid and incurred loss development to predict ultimate losses,
	•	Paid and incurred frequency and severity methods utilizing paid and incurred claims count development and paid and incurred claims cost development to predict ultimate average frequency (i.e. claims count per auto insured) or ultimate average severity (cost of claim per claim) and
	•	Paid and incurred Bornhuetter-Ferguson methods adding expected development to actual paid or incurred experience to project ultimate losses.
	For each subset of the business evaluated, each test generates a point estimate based on development factors applied to known paid and incurred claims and claim counts to estimate ultimate paid claims and claim counts. Selections of development factors are based on historical loss development patterns with adjustment based on professional actuarial judgment where anticipated development patterns vary from those seen historically. Deviations from historical loss development patterns may occur due to changes in items such as claims settlement and payment practices, business mix, coverage limits and deductibles, inflation trends in auto repair and medical costs and legal and regulatory trends affecting claims settlements. This estimation of IBNR requires selection of hundreds of such factors. A single point estimate for the subset being evaluated is then selected from the results of various tests, based on a combination of simple averages of the point estimates of the various tests and selections based on professional actuarial judgment. During recent years, paid methods have been less reliable because of changes in settlement practices, so we have more heavily relied on incurred methods.
	The following table provides an analysis of changes in the liability for losses and LAE, net of reinsurance:
	(in thousands)	2013			2012			2011
	Balance at Beginning of Period
	Unpaid losses on known claims	$	205,589		$	181,972		$	180,334
	IBNR losses	218,552			177,645			164,140
	LAE	148,753			135,787			133,359
	Total unpaid losses and LAE	572,894			495,403			477,833
	Reinsurance recoverables	(13,678		)	(14,640		)	(16,521		)
	Unpaid losses and LAE, net of reinsurance recoverables	559,215			480,764			461,312
	Current Activity
	Loss and LAE incurred:
	Current accident year	1,014,299			926,033			763,109
	Prior accident years	2,948			16,219			4,519
	Total loss and LAE incurred	1,017,247			942,253			767,629
	Loss and LAE payments:
	Current accident year	(593,850		)	(553,549		)	(459,798		)
	Prior accident years	(350,466		)	(310,252		)	(288,379		)
	Total loss and LAE payments	(944,316		)	(863,801		)	(748,177		)
	Balance at End of Period
	Unpaid losses and LAE, net of reinsurance recoverables	632,146			559,215			480,764
	Add back reinsurance recoverables	14,431			13,678			14,640
	Total unpaid losses and LAE	$	646,577		$	572,894		$	495,403
	Unpaid losses on known claims	$	221,447		$	205,589		$	181,972
	IBNR losses	262,660			218,552			177,645
	LAE	162,469			148,753			135,787
	Total unpaid losses and LAE	$	646,577		$	572,894		$	495,403
	Increases in severities in both bodily injury coverage in California and personal injury protection coverage in Florida related to
	accident year 2012 were the primary sources of the $2.9 million unfavorable reserve development during the twelve months ended December 31, 2013.
	Increases in severities in both bodily injury coverage in California and personal injury protection coverage in Florida related to
	accident year 2011 were the primary sources of the $16.2 million unfavorable reserve development during the twelve months ended December 31, 2012.
	An increase in severity in Florida personal injury protection coverage related to accident year 2010 was the primary source of the $4.5 million of unfavorable development during the twelve months ended December 31, 2011.

Reinsurance

Reinsurance	12 Months Ended
	Dec. 31, 2013
Reinsurance Disclosures [Abstract]	'
Reinsurance	'
	Reinsurance
	The following table shows written and earned premium included in earnings for reinsurance assumed and amounts deducted from written and earned premium in connection with reinsurance ceded (in thousands):
	Year	Direct  Written		Reinsurance		Reinsurance			Net Written		% of Amount
		Premium		Assumed		Ceded			Premium		Assumed to
											Net
	2013	$	1,339,803	$	16	$	(9,927	)	$	1,329,892	0	%
	2012	1,254,386		543		(7,731		)	1,247,198		0	%
	2011	1,082,458		8		(6,490		)	1,075,976		0	%
	Year	Direct  Earned		Reinsurance		Reinsurance			Net Earned		% of Amount
		Premium		Assumed		Ceded			Premium		Assumed to
											Net
	2013	$	1,311,942	$	15	$	(9,432	)	$	1,302,525	0	%
	2012	1,190,773		542		(7,225		)	1,184,090		0	%
	2011	1,025,302		7		(6,249		)	1,019,060		0	%
	Assumed Reinsurance
	Assumed business consists of two components:
	(i) Business assumed from other unaffiliated insurance companies and
	(ii) Business assumed from involuntary pools and associations.
	We assumed $4.1 million, $5.4 million and $7.0 million, respectively, at December 31, 2013, 2012 and 2011 of total unpaid losses and LAE from unaffiliated insurance companies. We assumed no premium from unaffiliated insurance companies in 2013 or 2011. In 2012, we assumed $0.5 million of premium from unaffiliated insurance companies.
	At December 31, 2013, 2012 and 2011, we assumed $7.8 million, $8.0 million and $8.3 million, respectively, of assumed unpaid losses and LAE as part of fronting arrangements under which we utilized these companies' insurance licenses to write business while assuming substantially all of that business back from these carriers.
	Although the business was issued on these unaffiliated companies' policies, we manage the claims adjusting and loss reserving for this business.
	During the twelve months ended December 31, 2013, 2012 and 2011, we assumed, from involuntary pools and associations, premium and unpaid losses and LAE of less than $0.1 million each.
	Ceded Reinsurance
	We use excess of loss, catastrophe and extra-contractual loss reinsurance to mitigate the financial impact of large or
	catastrophic losses. During 2011, our catastrophe reinsurance provided protection for losses up to $15 million in excess of $5 million for any single event and from April 1, 2011 forward, there was an additional layer which covered 75% of $5 million of losses in excess of $20 million for any single event. For 2012, we increased our catastrophe reinsurance protection to cover 100% of $25 million in excess of $5 million. During 2013, our catastrophe reinsurance protection was 100% of $45 million in excess of $5 million. For 2014, we have increased our catastrophe reinsurance protection to 100% of $55 million in excess of $5 million. Our excess of loss reinsurance provides reinsurance protection for commercial auto losses up to $700,000 for claims in excess of $300,000 per occurrence. Our extra-contractual loss reinsurance provides protection for losses up to $10 million in excess of $5 million for any single extra-contractual loss. We also use reinsurance to mitigate losses on our Classic Collector business.
	Ceded reinsurance for all programs reduced our incurred losses and LAE by $1.6 million, $2.5 million and $1.0 million for the twelve months ended December 31, 2013, 2012 and 2011, respectively.

Statutory_Information

Statutory Information	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Statutory Information	'
	Statutory Information
	Capital and Surplus
	Insurance companies are required to file financial statements with state insurance regulatory authorities prepared on an accounting basis prescribed or permitted by such authorities (statutory basis). Net earnings and capital and surplus on a statutory basis were as follows (in thousands):
	Statutory Net Earnings			Statutory Capital and Surplus
	2013	2012	2011	2013	2012
	$44,906	$31,141	$37,288	$673,973	$613,177
	For the twelve-month periods ended December 31, 2013, 2012 and 2011, statutory results differed from net earnings on a GAAP basis primarily due to the amortization of deferred acquisition costs, the basis difference in realized gains and holding company expenses, including interest. Net earnings for 2012 and 2011 include $0.1 million and $(0.9) million, respectively, related to the subsidiaries sold as of December 31, 2012.
	At December 31, 2013, the consolidated amount of statutory capital and surplus necessary to satisfy regulatory requirements as defined by the National Association of Insurance Commissioners' ("NAIC") Risk-Based Capital ("RBC") calculation was $143.8 million. This amount of statutory capital and surplus represents the 'Company Action Level' ("CAL") of minimum surplus. Falling below this level would require a company to prepare and submit an RBC plan to address the deficiency in surplus to the CAL to the commissioner of its state of domicile.
	Restrictions on Transfer of Funds and Assets of Subsidiaries
	As of December 31, 2013, there are no regulatory restrictions on the payment of dividends to our shareholders. However, our ability to declare and pay dividends will depend on the working capital in the holding company, as well as dividends received from our insurance subsidiaries.
	Payments of dividends, loans and advances by our insurance subsidiaries are subject to certain restrictions under various state laws, federal regulations and debt covenants that limit the amount of dividends, loans and advances that can be paid. Under applicable restrictions, the maximum amount of dividends payable in 2014 from our insurance subsidiaries without regulatory approval is approximately $66.8 million. Additional amounts of dividends, loans and advances require regulatory approval.

Legal_and_Regulatory_Proceedin

Legal and Regulatory Proceedings	12 Months Ended
	Dec. 31, 2013
Loss Contingency [Abstract]	'
Legal and Regulatory Proceedings	'
	Legal and Regulatory Proceedings
	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, while not probable, is judged to be reasonably possible, we will disclose, if it can be estimated, a possible 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 LAE” 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 LAE” 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.

Commitments_And_Contingencies

Commitments And Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Commitments
	Minimum rental commitments under non-cancelable leases with an initial or remaining term of more than one year as of December 31, 2013 were as follows (in thousands):
	Due in	Operating Leases			Capital Leases
	2014	$	9,563		$	742
	2015	8,221			713
	2016	4,431			226
	2017	2,900			86
	2018	2,531			12
	Thereafter	1,157			3
	Total	$	28,803		$	1,783
	All of these leases expire within 8 years. The most significant leased office spaces are located in Birmingham, Alabama and suburban Los Angeles, California. These two leases combined total $16.7 million of the $28.8 million in minimum rental commitments for operating leases mentioned above.
	The operating leases above include leased vehicles. As vehicles are surrendered, they are sold for cash by the lessor. We guarantee that proceeds from sales will be at least equal to the lessor's depreciated book value. Otherwise, we are credited the excess or we pay the deficit. The lessors depreciated book value at December 31, 2013 on the vehicles we lease was $6.0 million, which represents the maximum deficit we would be required to pay if the lessor received no proceeds from the sale. Historically, we have not made any material additional rental payments due to surrendered vehicles.
	Lease expense incurred for all leases during the last three years was as follows (in thousands):
		Twelve months ended December 31,
		2013			2012			2011
	Lease expense	$	12,015		$	12,389		$	14,448
	Sublease income	(163		)	(420		)	(441		)
	Total	$	11,851		$	11,969		$	14,007
	Contingencies
	Based on the criteria established by the Contingencies topic of the FASC, we have the following loss contingencies for which we accrue in our financial statements:
	•     Other-than-temporary impairments on investments		Note 3
	•     Insurance reserves		Note 10
	•     Legal and regulatory proceedings		Note 13
	•     Allowances for uncollectible accounts		Note 15
	For each item listed above, please refer to the notes referenced for additional discussion.

Additional_Information

Additional Information	12 Months Ended
	Dec. 31, 2013
Additional Information [Abstract]	'
Additional Information	'
	Additional Information
	Allowances for Uncollectible Accounts
	Agents’ balances and premium receivable included in the Consolidated Balance Sheets are net of allowances for uncollectible accounts. The provision for such losses is included in commissions and other underwriting expenses. A progression of the aggregate allowance follows (in thousands):
		2013			2012			2011
	Beginning balance	$	16,124		$	13,497		$	12,323
	Provision for losses	20,913			24,884			21,259
	Uncollectible amounts written off	(21,154		)	(22,256		)	(20,085		)
	Ending balance	$	15,884		$	16,124		$	13,497
	Negative Cash Book Balances
	Negative cash book balances, included in the line item “Other liabilities” in the Consolidated Balance Sheets, were $50.5 million, $45.4 million and $5.9 million, respectively, at December 31, 2013, 2012 and 2011.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Accumulated Other Comprehensive Income	'
	The components of other comprehensive income before and after tax are as follows (in thousands):
		Twelve Months Ended December 31,
		2013									2012									2011
		Before Tax			Income Tax			Net			Before Tax			Income Tax			Net			Before Tax			Income Tax			Net
	Accumulated change in postretirement benefit liability, beginning of period	$	(967	)	$	339		$	(629	)	$	519		$	(182	)	$	337		$	791		$	(277	)	$	514
	Effect on other comprehensive income	906			(317		)	589			(1,487		)	520			(966		)	(272		)	95			(177		)
	Accumulated change in postretirement benefit liability, end of period	$	(62	)	$	22		$	(40	)	$	(967	)	$	339		$	(629	)	$	519		$	(182	)	$	337
	Accumulated unrealized gains on investments, net, beginning of period	$	46,892		$	(16,412	)	$	30,480		$	53,817		$	(18,836	)	$	34,981		$	36,884		$	(12,909	)	$	23,974
	Other comprehensive income before reclassification	(15,227		)	5,330			(9,898		)	17,129			(5,995		)	11,134			25,532			(8,936		)	16,596
	Reclassification adjustment for other-than-temporary impairments included in net income	1,468			(514		)	954			1,393			(487		)	905			1,447			(506		)	940
	Reclassification adjustment for realized gains included in net income	(7,495		)	2,623			(4,872		)	(25,447		)	8,907			(16,541		)	(10,045		)	3,516			(6,529		)
	Effect on other comprehensive income	(21,254		)	7,439			(13,815		)	(6,926		)	2,424			(4,502		)	16,934			(5,927		)	11,007
	Accumulated unrealized gains on investments, net, end of period	$	25,638		$	(8,973	)	$	16,665		$	46,892		$	(16,412	)	$	30,480		$	53,817		$	(18,836	)	$	34,981
	Accumulated other comprehensive income, beginning of period	$	45,924		$	(16,073	)	$	29,851		$	54,336		$	(19,018	)	$	35,319		$	37,674		$	(13,186	)	$	24,488
	Change in postretirement benefit liability	906			(317		)	589			(1,487		)	520			(966		)	(272		)	95			(177		)
	Change in unrealized gains on investments, net	(21,254		)	7,439			(13,815		)	(6,926		)	2,424			(4,502		)	16,934			(5,927		)	11,007
	Effect on other comprehensive income	(20,348		)	7,122			(13,226		)	(8,412		)	2,944			(5,468		)	16,662			(5,832		)	10,831
	Accumulated other comprehensive income, end of period	$	25,576		$	(8,952	)	$	16,624		$	45,924		$	(16,073	)	$	29,851		$	54,336		$	(19,018	)	$	35,319

Significant_Reporting_and_Acco1

Significant Reporting and Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Nature of Operations	'
	We currently write personal automobile insurance with a concentration on nonstandard automobile insurance, mono-line commercial vehicle insurance and classic collector automobile insurance. Personal auto insurance accounts for 93% of our total gross written premium and we primarily write it in seven states. We wrote approximately 48% of our personal auto gross written premium in the state of California during 2013.
Basis of Consolidation and Reporting	'
	The accompanying consolidated financial statements include our accounts and those of our subsidiaries. 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 inter-company transactions and balances.
	We have evaluated events that occurred after December 31, 2013 for recognition or disclosure in our financial statements and the notes to the financial statements.
	Schedules may not foot due to rounding.
Investments	'
	We consider all fixed maturity securities “available for sale” and report them at fair value with unrealized gains or losses reported after-tax in accumulated other comprehensive income within shareholders' equity.  We base the fair values of investments on prices quoted in the most active market for each security. If quoted prices are not available, we estimate fair value based on the fair value of comparable securities, discounted cash flow models or similar methods. We treat premium and discounts on mortgage-backed securities (“MBS”), collateralized mortgage obligations (“CMO”), collateralized loan obligations (“CLO”) and asset-backed securities (“ABS”) as a yield adjustment over the estimated life of the securities, adjusted for anticipated prepayments, using the interest method. We base prepayment assumptions on data from widely accepted third party data sources or internal estimates. We review the amortized cost and effective yield of the security periodically and adjust it to reflect actual prepayments and changes in expectations. For high credit quality MBS and ABS (those rated AA or above at the time of purchase), the adjustments to amortized cost are recorded as a charge or credit to net investment income in accordance with the retrospective method. For MBS and ABS rated below AA, we adjust the yield prospectively for any changes in estimated cash flows.
	Gains or losses on securities are determined on the specific identification basis.  When we consider impairment in the value of a specific investment other-than-temporary (“OTTI”), the cost basis of that investment is reduced. For fixed maturity securities that are OTTI, 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 OTTI, but we do not intend to and are not more than likely to be required to sell the security prior to its recovery to amortized cost, the amount of the impairment is separated into a credit loss component and the amount due to all other factors. 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 (1) the effective interest rate implicit at the date of acquisition for non-structured securities or (2) the book yield for structured securities. The techniques and assumptions for determining the best estimate of cash flows varies 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.
Estimates	'
	The preparation of the financial statements in conformity with generally accepted accounting principles of the United States requires us to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Changes in circumstances could cause actual results to differ materially from those estimates.
Cash and Cash Equivalents	'
	We consider liquid investments having original maturities of three months or less when purchased to be cash equivalents for purposes of the financial statements.
Reinsurance	'
	Our insurance subsidiaries cede insurance to other companies. To the extent that any reinsuring companies are unable to meet obligations under agreements covering reinsurance ceded, our insurance subsidiaries would remain liable. We estimate amounts recoverable from reinsurers in a manner consistent with the claim liability associated with the reinsured policies. Our insurance subsidiaries report as assets (a) the estimated reinsurance recoverable on unpaid losses, including an estimate for losses incurred but not reported, and (b) amounts paid to reinsurers applicable to the unexpired terms of policies in force.
Deferred Policy Acquisition Costs (DPAC)	'
	We defer and charge against income ratably over the terms of the related policies policy acquisition costs (principally commissions, premium taxes and other marketing and underwriting expenses) related to the successful production of premium writings.  The method followed in computing DPAC limits the amount of such costs to their estimated realizable value without any consideration for anticipated investment income. Each quarter, we evaluate the recoverability of these costs.
Goodwill	'
	In accordance with the Goodwill topic of the FASB Accounting Standards Codification (“FASC”), we perform impairment test procedures for goodwill on an annual basis. These procedures require us to calculate the fair value of goodwill, compare the result to our carrying value and record the amount of any shortfall as an impairment charge.
	We performed this test as of October 1, 2013 using a variety of methods, including estimates of future discounted cash flows and comparisons of our market value to that of our major competitors. Our cash flow projections rely on assumptions that are subject to uncertainty, including premium growth, loss and loss adjustment expense ratios, interest rates and capital requirements.
	The October 1, 2013 test results indicated that the fair value of our goodwill exceeded our carrying value and therefore no impairment charge was required at that date. Additionally, there was no indication of impairment at December 31, 2013
Unpaid Losses and Loss Adjustment Expense (LAE)	'
	The net liabilities stated for unpaid claims and for expenses of investigation and adjustment of unpaid claims are based upon (a) the accumulation of case estimates for losses reported prior to the close of the accounting period on direct business written; (b) estimates received from ceding reinsurers and insurance pools and associations; (c) estimates of unreported losses based on past experience; (d) estimates based on experience of expenses for investigating and adjusting claims and (e) the current state of the law and coverage litigation. These liabilities are subject to the impact of changes in claim amounts and frequency and other factors. We have not reduced liabilities for unpaid losses and LAE for reinsurance recoverables; such recoverables are recorded separately as assets. Changes in estimates of the liabilities for losses and LAE are reflected in the Consolidated Statements of Earnings in the period in which determined. In spite of the variability inherent in such estimates, we believe that the liabilities for unpaid losses and LAE are adequate.
Premium and Receivables	'
	We earn insurance premium written over the terms of the policies on a pro rata basis.  Unearned premium represents that portion of premium written which is applicable to the unexpired terms of policies in force.  On reinsurance assumed from other insurance companies or written through various underwriting organizations, we base unearned premium on reports received from such companies and organizations. We provide insurance and related services to individuals and small commercial accounts throughout the United States and offer a variety of payment plans. We establish an allowance for doubtful accounts based on the relationship, on a policy basis, between receivables and unearned premium, or an aging analysis of past due balances. We charge off premium due from insureds if not collected within 90 days of the policies' expiration or cancellation dates. However, even after we charge off premium, attempts to collect the premium continue.
Income Taxes	'
	We file a consolidated federal income tax return, which includes all 80% and greater owned U.S. subsidiaries. We and our 80% and greater owned subsidiaries are parties to a tax allocation agreement, which designates how members of the tax group share tax payments. In general, each subsidiary agrees to pay us taxes computed on a separate company taxable income basis. We agree to pay each subsidiary for the tax benefit, if any, of net losses used by other members of the consolidated group.
	We calculate deferred income taxes using the “asset and liability method.” Under this method, deferred income tax assets and liabilities are determined based on differences between financial reporting and tax basis and are measured using enacted tax rates. We recognize deferred tax assets if it is more likely than not that a benefit will be realized. We aggregate current and deferred tax assets and liabilities on the Consolidated Balance Sheets.
Property and Equipment	'
	We report property and equipment balances at cost less accumulated depreciation. Property and equipment, which consists of land, buildings, leasehold improvements, computer equipment, capitalized software and furniture and fixtures, was $48.1 million at December 31, 2013, net of accumulated depreciation of $53.4 million. We recognized $1.8 million, net of accumulated depreciation of $1.7 million, of equipment held under capital leases in other assets on the Consolidated Balance Sheets with the related lease obligations recorded in other liabilities. We compute depreciation over the estimated useful lives of the assets using the straight-line method. Property and equipment is a separate line item on the Consolidated Balance Sheets and we allocate the related expenses, including amortization of assets recorded under capital leases, to one or more of the following line items on the Consolidated Statements of Earnings depending on the asset: losses and LAE, commissions and other underwriting expenses, corporate general and administrative expenses or other expenses.
Benefit Plans	'
	We provide retirement benefits to qualified employees and healthcare and life insurance benefits to eligible retirees. We also provide post-employment benefits to former or inactive employees (primarily those on disability) who were not deemed retired under other company plans. The projected future cost of providing these benefits is expensed over the period the employees earn such benefits.
Recently Issued Accounting Standards	'

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2013
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
	December 31, 2013		Level 1				Level 2				Level 3				Total
	Cash and cash equivalents		$	134,211			$	0			$	0			$	134,211
	Fixed maturity securities:
	U.S. government		64,496				171				0				64,666
	State and municipal		0				487,111				0				487,111
	Mortgage-backed securities:
	Residential		0				323,346				0				323,346
	Commercial		0				35,816				0				35,816
	Total mortgage-backed securities		$	0			$	359,162			$	0			$	359,162
	Collateralized mortgage obligations		0				1,291				0				1,291
	Asset-backed securities		0				70,573				686				71,259
	Corporates		0				365,642				5,175				370,816
	Total fixed maturities		$	64,496			$	1,283,949			$	5,860			$	1,354,305
	Equity securities		91,127				0				0				91,127
	Short-term investments		1,200				1,396				0				2,596
	Total cash and investments		$	291,033			$	1,285,345			$	5,860			$	1,582,238
	Percentage of total cash and investments		18.4		%		81.2		%		0.4		%		100		%
			Fair Value
	December 31, 2012		Level 1				Level 2				Level 3				Total
	Cash and cash equivalents		$	165,182			$	0			$	0			$	165,182
	Fixed maturity securities:
	U.S. government		81,529				296				3,712				85,537
	Government-sponsored entities		0				22,140				0				22,140
	State and municipal		0				457,113				0				457,113
	Mortgage-backed securities:
	Residential		0				281,907				0				281,907
	Commercial		0				13,768				0				13,768
	Total mortgage-backed securities		$	0			$	295,675			$	0			$	295,675
	Collateralized mortgage obligations		0				19,307				0				19,307
	Asset-backed securities		0				79,257				0				79,257
	Corporates		0				353,697				9,101				362,797
	Total fixed maturities		$	81,529			$	1,227,486			$	12,813			$	1,321,828
	Equity securities		73,106				0				0				73,106
	Total cash and investments		$	319,817			$	1,227,486			$	12,813			$	1,560,116
	Percentage of total cash and investments		20.5		%		78.7		%		0.8		%		100		%
Fair value level 3 reconciliation	'
	The following tables present the changes in the Level 3 fair value category (in thousands):
		Twelve months ended
		31-Dec-13
		U.S. Government				State and Municipal				Mortgage-Backed Securities				Collateralized Mortgage Obligations				Corporates			Asset-Backed Securities			Total
	Balance at beginning of period	$	3,712			$	0			$	0			$	0			$	9,101		$	0		$	12,813
	Total gains or (losses), unrealized or realized
	Included in net earnings	268				0				0				0				583			0			852
	Included in other comprehensive income	(418		)		0				0				0				(477		)	1			(895		)
	Purchases	0				0				0				0				0			0			0
	Sales	(2,968		)		0				0				0				(877		)	0			(3,845		)
	Settlements	(594		)		0				0				0				(1,824		)	(310		)	(2,729		)
	Transfers in	0				0				0				0				0			995			995
	Transfers out	0				0				0				0				(1,331		)	0			(1,331		)
	Balance at end of period	$	0			$	0			$	0			$	0			$	5,175		$	686		$	5,860
		Twelve months ended
		December 31, 2012
		U.S. Government				State and Municipal				Mortgage-Backed Securities				Collateralized Mortgage Obligations				Corporates			Asset-Backed Securities			Total
	Balance at beginning of period	$	4,438			$	0			$	0			$	509			$	10,426		$	0		$	15,374
	Total gains or (losses), unrealized or realized
	Included in net earnings	(77		)		(15		)		0				(74		)		269			0			102
	Included in other comprehensive income	(52		)		14				32				93				309			1			397
	Purchases	0				4,002				7,156				0				0			4,005			15,163
	Sales	0				0				0				(483		)		(254		)	0			(737		)
	Settlements	(597		)		(2,750		)		0				(44		)		(2,344		)	0			(5,735		)
	Transfers in	0				2,781				0				0				2,889			0			5,670
	Transfers out	0				(4,031		)		(7,188		)		0				(2,195		)	(4,005		)	(17,420		)
	Balance at end of period	$	3,712			$	0			$	0			$	0			$	9,101		$	0		$	12,813
Quantitative information about inputs of manually priced securities	'
	Quantitative information about the significant unobservable inputs used in the fair value measurement of these manually priced securities at December 31, 2013 is as follows (in millions):
		Fair Value				Valuation Technique		Unobservable Input		Value Used
	Corporate bond	$	0.1			Recovery rate1		Probability of default		100%
	Corporate bond	0.6				Discounted cash flow		Comparable credit rating2		CCC
	Total	$	0.7
	1 Recovery rate for senior unsecured bonds as indicated in Moody's Investor's Service Annual Default Study: Corporate Default and Recovery Rates, 1920-2012.
	2 This bond is not rated, but is supported by JC Penney Corporation trust assets; therefore a JC Penney comparable bond rating is used.
Carrying value and estimated fair value	'
	The following table presents the carrying value and estimated fair value of our financial instruments (in thousands):
		December 31, 2013								December 31, 2012
		Carrying				Fair				Carrying				Fair
		Value				Value				Value				Value
	Assets:
	Cash and cash equivalents	$	134,211			$	134,211			$	165,182			$	165,182
	Available-for-sale securities
	Fixed maturities	1,354,305				1,354,305				1,321,828				1,321,828
	Equity securities	91,127				91,127				73,106				73,106
	Short-term investments	2,596				2,596				0				0
	Total cash and investments	$	1,582,238			$	1,582,238			$	1,560,116			$	1,560,116
	Liabilities:
	Long-term debt	$	275,000			$	272,632			$	275,000			$	288,879

Investments_Tables

Investments (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Summarized information of investment portfolio	'
	Summarized information for the major categories of our investment portfolio follows (in thousands):
		December 31, 2013
		Amortized				Gross				Gross				Fair Value				OTTI
		Cost or Cost				Unrealized				Unrealized								Recognized in
						Gains				Losses								Accumulated
																		OCI(1)
	Fixed maturities:
	U.S. government	$	64,194			$	900			$	(427	)		$	64,666			$	0
	State and municipal	478,092				10,789				(1,771		)		487,111				(73		)
	Mortgage-backed securities:
	Residential	330,169				1,985				(8,809		)		323,346				(2,435		)
	Commercial	35,781				339				(304		)		35,816				0
	Total mortgage-backed securities	$	365,950			$	2,324			$	(9,113	)		$	359,162			$	(2,435	)
	Collateralized mortgage obligations	1,228				63				0				1,291				(161		)
	Asset-backed securities	71,183				178				(103		)		71,259				(8		)
	Corporates	364,430				9,086				(2,700		)		370,816				(612		)
	Total fixed maturities	$	1,345,077			$	23,340			$	(14,112	)		$	1,354,305			$	(3,290	)
	Equity securities	74,718				16,409				0				91,127				0
	Short-term investments	2,595				1				0				2,596				0
	Total	$	1,422,390			$	39,750			$	(14,112	)		$	1,448,027			$	(3,290	)
		December 31, 2012
		Amortized				Gross				Gross				Fair Value				OTTI
		Cost or Cost				Unrealized				Unrealized								Recognized in
						Gains				Losses								Accumulated
																		OCI(1)
	Fixed maturities:
	U.S. government	$	83,320			$	2,225			$	(8	)		$	85,537			$	0
	Government-sponsored entities	21,401				740				0				22,140				0
	State and municipal	438,367				19,109				(364		)		457,113				(53		)
	Mortgage-backed securities:
	Residential	275,668				6,511				(272		)		281,907				(292		)
	Commercial	13,023				749				(3		)		13,768				0
	Total mortgage-backed securities	$	288,691			$	7,259			$	(275	)		$	295,675			$	(292	)
	Collateralized mortgage obligations	18,847				469				(9		)		19,307				(244		)
	Asset-backed securities	78,931				435				(109		)		79,257				(51		)
	Corporates	348,494				14,807				(503		)		362,797				(972		)
	Total fixed maturities	$	1,278,051			$	45,045			$	(1,268	)		$	1,321,828			$	(1,612	)
	Equity securities	69,992				3,115				0				73,106				0
	Total	$	1,348,042			$	48,160			$	(1,268	)		$	1,394,934			$	(1,612	)
	(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 table sets 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
	December 31, 2013	Number of		Fair				Gross				Unrealized			Number of		Fair				Gross			Unrealized
		Securities		Value				Unrealized				Losses as			Securities		Value				Unrealized			Losses as
		with						Losses				% of Cost			with						Losses			% of Cost
		Unrealized													Unrealized
		Losses													Losses
	Fixed maturities:
	U.S. government	11		$	26,396			$	(427	)		1.6	%		0		$	0			$	0		0	%
	State and municipal	51		121,431				(1,425		)		1.2	%		4		8,062				(346		)	4.1	%
	Mortgage-backed securities:
	Residential	229		207,821				(7,064		)		3.3	%		34		39,659				(1,744		)	4.2	%
	Commercial	11		22,311				(290		)		1.3	%		1		756				(14		)	1.8	%
	Total mortgage-backed securities	240		$	230,133			$	(7,354	)		3.1	%		35		$	40,415			$	(1,758	)	4.2	%
	Collateralized mortgage obligations	0		0				0				0	%		0		0				0			0	%
	Asset-backed securities	18		14,738				(103		)		0.7	%		0		0				0			0	%
	Corporate	90		115,735				(2,621		)		2.2	%		1		1,212				(79		)	6.1	%
	Total fixed maturities	410		$	508,432			$	(11,929	)		2.3	%		40		$	49,688			$	(2,183	)	4.2	%
	Equity securities	0		0				0				0	%		0		0				0			0	%
	Short-term investments	0		0				0				0	%		0		0				0			0	%
	Total	410		$	508,432			$	(11,929	)		2.3	%		40		$	49,688			$	(2,183	)	4.2	%
		Less than 12 Months													12 Months or More
	December 31, 2012	Number of		Fair				Gross				Unrealized			Number of		Fair				Gross			Unrealized
		Securities		Value				Unrealized				Losses as			Securities		Value				Unrealized			Losses as
		with						Losses				% of Cost			with						Losses			% of Cost
		Unrealized													Unrealized
		Losses													Losses
	Fixed maturities:
	U.S. government	3		$	11,758			$	(8	)		0.1	%		0		$	0			$	0		0	%
	State and municipal	32		52,399				(364		)		0.7	%		0		0				0			0	%
	Mortgage-backed securities:
	Residential	42		75,927				(272		)		0.4	%		0		0				0			0	%
	Commercial	1		73				0				0.6	%		1		259				(3		)	1.1	%
	Total mortgage-backed securities	43		$	76,000			$	(272	)		0.4	%		1		$	259			$	(3	)	1.1	%
	Collateralized mortgage obligations	2		1,264				(9		)		0.7	%		0		0				0			0	%
	Asset-backed securities	6		11,941				(57		)		0.5	%		2		6,138				(52		)	0.8	%
	Corporate	58		70,540				(503		)		0.7	%		0		0				0			0	%
	Total fixed maturities	144		$	223,903			$	(1,213	)		0.5	%		3		$	6,397			$	(55	)	0.8	%
	Equity securities	0		0				0				0	%		0		0				0			0	%
	Total	144		$	223,903			$	(1,213	)		0.5	%		3		$	6,397			$	(55	)	0.8	%
Summary of unrealized gains or losses	'
	The following table summarizes those securities, excluding the rabbi trust, with unrealized gains or losses:
		31-Dec-13			December 31, 2012
	Number of positions held with unrealized:
	Gains	590			749
	Losses	450			147
	Number of positions held that individually exceed unrealized:
	Gains of $500,000	1			3
	Losses of $500,000	0			0
	Percentage of positions held with unrealized:
	Gains that were investment grade	81	%		81	%
	Losses that were investment grade	93	%		86	%
	Percentage of fair value held with unrealized:
	Gains that were investment grade	88	%		92	%
	Losses that were investment grade	95	%		93	%
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 December 31, 2013 (in thousands):
		Fair Value of				Total Gross				Less Than 5%*				5% - 10%*				Total Gross
		Securities with				Unrealized												Greater
		Unrealized				Losses												Than 10%*
		Losses
	Age of Unrealized Losses:
	Three months or less	$	205,542			$	(1,674	)		$	(1,654	)		$	(20	)		$	0
	Four months through six months	14,964				(130		)		(130		)		0				0
	Seventh months through nine months	269,559				(9,851		)		(4,957		)		(4,894		)		0
	Ten months through twelve months	39,685				(1,112		)		(757		)		(355		)		0
	Greater than twelve months	28,371				(1,344		)		(571		)		(774		)		0
	Total	$	558,121			$	(14,112	)		$	(8,068	)		$	(6,044	)		$	0
	*	As a percentage of amortized cost or cost.
Change in unrealized gains (losses) on marketable securities	'
	The change in unrealized gains (losses) on securities included the following (in thousands):
		Pretax
		Fixed  Maturities				Equity Securities				Short-Term Investments				Tax Effects				Net
	December 31, 2013
	Unrealized holding gains (losses) on securities arising during the period	$	(29,199	)		$	13,971			$	1			$	5,330			$	(9,898	)
	Realized (gains) losses included in net earnings	(6,818		)		(677		)		0				2,623				(4,872		)
	Impairment losses recognized in net earnings	1,468				0				0				(514		)		954
	Change in unrealized gain (loss) on securities, net	$	(34,549	)		$	13,294			$	1			$	7,439			$	(13,815	)
	December 31, 2012
	Unrealized holding gains (losses) on securities arising during the period	$	10,678			$	6,451			$	0			$	(5,995	)		$	11,134
	Realized (gains) losses included in net earnings(1)	(11,594		)		(13,853		)		0				8,907				(16,541		)
	Impairment losses recognized in net earnings	1,393				0				0				(487		)		905
	Change in unrealized gain (loss) on securities, net	$	476			$	(7,402	)		$	0			$	2,424			$	(4,502	)
	December 31, 2011
	Unrealized holding gains (losses) on securities arising during the period	$	25,233			$	299			$	0			$	(8,936	)		$	16,596
	Realized (gains) losses included in net earnings	(7,295		)		(2,750		)		0				3,516				(6,529		)
	Impairment losses recognized in net earnings	1,447				0				0				(506		)		940
	Change in unrealized gain (loss) on securities, net	$	19,384			$	(2,451	)		$	0			$	(5,927	)		$	11,007
	(1) The tax effect is exclusive of the release of the deferred tax valuation allowance of $6.4 million in 2012.
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 noncredit component (in thousands):
		2013				2012
	Balance at beginning of year	$	487			$	1,728
	Additions for:
	Previously impaired securities	27				0
	Newly impaired securities	659				110
	Previously all credit	26				0
	Reductions for:
	Securities sold and paydowns	(206		)		(616		)
	Securities that no longer have a non-credit component	(37		)		(735		)
	Balance at end of year	$	956			$	487
Scheduled maturities of fixed maturity securities	'
	Actual maturities may differ
	from contractual maturities because certain securities may be called or prepaid by the issuers.
																		Amortized
		Fair Value																Cost
	Maturity	Securities				Securities				Securities				All Fixed				All Fixed
		with				with				with No				Maturity				Maturity
		Unrealized				Unrealized				Unrealized				Securities				Securities
		Gains				Losses				Gains or
										Losses
	One year or less	$	61,980			$	1,517			$	5,867			$	69,364			$	68,885
	After one year through five years	423,920				140,721				1,847				566,487				553,683
	After five years through ten years	149,976				125,788				0				275,764				273,351
	After ten years	6,168				4,810				0				10,978				10,797
	Mortgage-backed, asset-backed and collateralized mortgage obligations	143,806				285,285				2,620				431,712				438,361
	Total	$	785,851			$	558,121			$	10,334			$	1,354,305			$	1,345,077
Investment income	'
	The following table shows investment income earned and investment expenses incurred (in thousands):
		Twelve months ended December 31,
		2013				2012				2011
	Investment income:
	Interest income on fixed maturities, cash and cash equivalents	$	36,113			$	38,234			$	41,900
	Dividends on equity securities	1,711				1,415				693
	Gross investment income	$	37,825			$	39,649			$	42,593
	Investment expenses	(2,279		)		(2,077		)		(2,036		)
	Net investment income	$	35,546			$	37,571			$	40,557

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
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):
		Twelve Months December 31,
		2013			2012			2011
	Earnings before income taxes	$	45,078		$	22,088		$	53,624
	Income taxes at statutory rate	15,777			7,731			18,768
	Effect of:
	Dividends-received deduction	(357		)	(296		)	(145		)
	Tax-exempt interest	(2,743		)	(3,294		)	(3,510		)
	Adjustment to valuation allowance	(48		)	(6,402		)	(3,507		)
	Other	(184		)	30			184
	Provision for income taxes as shown on the Consolidated Statements of Earnings	$	12,445		$	(2,231	)	$	11,791
	GAAP effective tax rate	27.6		%	(10.1		)%	22		%
Components of income tax expense	'
	The total income tax provision (benefit) consists of (in thousands):
		2013			2012			2011
	Current	$	10,541		$	3,605		$	12,416
	Deferred	1,904			(5,836		)	(625		)
	Provision for income taxes	$	12,445		$	(2,231	)	$	11,791
Schedule of deferred tax assets and liabilities	'
	The significant components of deferred tax assets and liabilities included in the Consolidated Balance Sheets were as follows (in thousands):
		As of December 31,
		2013			2012
	Deferred tax assets:
	Discount on loss reserves	$	7,045		$	9,066
	Unearned premium reserve	39,401			37,485
	Bad debts	5,559			5,670
	Accrued bonuses	2,442			2,269
	Deferred compensation	4,842			4,356
	Long-term incentive compensation	2,040			0
	Other	5,473			9,044
	Gross deferred tax assets	$	66,803		$	67,891
	Valuation allowance for deferred tax assets	(165		)	(213		)
		$	66,638		$	67,677
	Deferred tax liabilities:
	Deferred policy acquisition costs	$	(30,890	)	$	(30,888	)
	Investment securities – unrealized gains	(8,973		)	(16,412		)
	Other	(2,111		)	(1,138		)
	Total deferred tax liabilities	$	(41,975	)	$	(48,438	)
	Net deferred tax assets	$	24,663		$	19,240
	Current income taxes	3,985			6,558
	Current and deferred income taxes	$	28,648		$	25,798

Computation_Of_Earnings_Per_Sh1

Computation Of Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings per Share	'
	The following table illustrates our computations of basic and diluted net earnings per common share (in thousands, except per share figures):
		Twelve months ended December 31,
		2013		2012		2011
	Net earnings	$	32,633	$	24,319	$	41,833
	Average basic shares outstanding	11,451		11,660		12,111
	Basic net earnings per share	$	2.85	$	2.09	$	3.45
	Average basic shares outstanding	11,451		11,660		12,111
	Restricted stock not vested	46		28		72
	Dilutive effect of assumed option exercises	29		97		117
	Dilutive effect of Performance Share Plan	130		156		114
	Average diluted shares outstanding	11,657		11,941		12,414
	Diluted net earnings per share	$	2.8	$	2.04	$	3.37

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Restricted stock activity	'
	The number of shares issued, by plan, for share-based compensation arrangements was as follows:
		2013				2012		2011
		2013 Plan		Prior Plans
	Restricted Stock	0		0		0		72,234
	Non-employee Directors’ Stock	6,517		0		5,502		6,657
	Performance Shares	0		17,934		49,098		32,957
	Total	6,517		17,934		54,600		111,848
Valuation assumptions of stock options granted	'
	We estimated the weighted-average grant date fair value of options granted during 2004 and 2003 using the modified Black-Scholes valuation model and the following weighted-average assumptions:
		2004 Grants				2003 Grants
	Weighted-average grant date fair value	$	13.87			$	5.97
	Dividend yield	0.7		%		1.4		%
	Expected volatility	33		%		33		%
	Risk-free interest rate	4.3		%		4		%
	Expected life (in years)	7.5				7.5
	Weighted-average grant exercise price	$	33.56			$	16.11
	Outstanding as of December 31, 2013	16,000				0
Stock option activity	'
	The following table describes activity for our SOP for the twelve-month period ended December 31, 2013:
	Options	Number of			Weighted-				Weighted-		Aggregate
		Options			Average				Average		Intrinsic
					Exercise				Remaining		Value (a)
					Price				Term		(in millions)
									(in years)
	Outstanding as of January 1, 2013	91,357			$	31.32
	Exercised	(75,357	)		30.84
	Outstanding as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
	Vested as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
	Exercisable as of December 31, 2013	16,000			$	33.58			0.11		$	0.6
Total compensation cost by plan	'
	The amount of total compensation cost for share-based compensation arrangements was as follows (in thousands):
		Twelve months ended December 31,
		2013								2012					2011
		Expense				Tax				Expense			Tax		Expense		Tax
		Recognized in				Benefit				Recognized in			Benefit		Recognized in		Benefit
		Earnings								Earnings					Earnings
	Restricted Stock	$	1,190			$	417			$	1,190		$	417	$	960	$	336
	Non-employee Directors’ Stock Ownership Plan	385				135				300			105		350		123
	Employee Stock Purchase Plan	54				0				55			0		42		0
	Performance Shares	2,380				833				1,704			596		2,872		1,005
	Total	$	4,009			$	1,384			$	3,249		$	1,118	$	4,224	$	1,464

Benefit_Plans_Tables

Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Schedule of net benefit obligation	'
	The following tables show data related to the APBO plan (in thousands):
		2013				2012
	Net benefit obligation at beginning of year	$	5,004			$	3,526
	Service cost	331				119
	Interest cost	159				136
	Participant contributions	27				23
	Plan amendment	0				1,224
	Assumption change	(342		)		285
	Actuarial (gain) loss	(364		)		(45		)
	Gross benefits paid	(342		)		(264		)
	Net benefit obligation at end of year	$	4,473			$	5,004
Schedule of weighted-average assumptions used	'
	The following table discloses discount rates used to determine benefit obligations:
		2013			2012			2011
	Discount rate	4.1	%		3.3	%		4.00%
Schedule of net benefit costs	'
	The following table discloses the components of net periodic post-retirement benefit cost (in thousands):
		2013				2012				2011
	Service cost	$	331			$	119			$	102
	Interest cost	159				136				164
	Amortization of prior service cost	199				0				0
	Amortization of net cumulative (gain)/loss	0				(23		)		(63		)
	Net periodic post-retirement benefit cost	$	690			$	232			$	202
Schedule of health care cost trend rates	'
	The following table discloses the effects of a hypothetical one percentage point increase and the effects of a hypothetical one percentage point decrease in the assumed healthcare trend rate (in thousands):
		2013				2012			2011
	A one percentage point hypothetical change in the assumed healthcare trend rate would have the following effect on the post-retirement benefit obligations:
	1% increase	$	349			389			311
	1% decrease	(318		)		(363	)		(276		)
	A one percentage point hypothetical change in the assumed healthcare trend rate would have the following effect on the aggregate of the service and interest cost components of net periodic post-retirement healthcare benefit costs:
	1% increase	$	53			56			$	35
	1% decrease	(47		)		(49	)		(29		)
Schedule of changes in fair value of plan assets	'
	The following table reconciles the beginning and ending balances of the fair value of plan assets for the years ended December 31, 2013 and 2012 (in thousands):
		2013				2012
	Fair value of plan assets at beginning of year	$	0			$	0
	Employer contributions	315				241
	Participant contributions	27				23
	Gross benefits paid	(342		)		(264		)
	Fair value of plan assets at end of year	$	0			$	0
Schedule of amounts recognized in balance sheet	'
	The following table presents the funded status and the amounts recognized in the Consolidated Balance Sheets (in thousands):
		2013				2012
	Fair value of plan assets	$	0			$	0
	Benefit obligations	(4,473		)		(5,004		)
	Funded status at end of year	$	(4,473	)		$	(5,004	)
	Contributions made after the measurement date	0				0
	Unrecognized actuarial net (gain) loss	0				0
	Unrecognized prior service cost	0				0
	Net amount recognized at end of year	$	(4,473	)		$	(5,004	)
Schedule of expected benefit payments	'
	The following table presents the ten-year forecast and best estimate of expected benefit payments (in thousands):
		2013						2012					2011
	2014	$	292			2013		$	315			2012	241
	2015	304				2014		341				2013	250
	2016	346				2015		356				2014	258
	2017	361				2016		390				2015	258
	2018	398				2017		395				2016	264
	2019-2023	2,459				2018-2022		2,474				2017-2021	1,318
	Ten Year Total	$	4,160					$	4,270				2,590

Quarterly_Operating_Results_Ta

Quarterly Operating Results (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of quarterly financial information	'
	The following are quarterly results of our consolidated operations for the three years ended December 31, 2013 (in thousands, except per share amounts):
		1st Quarter		2nd Quarter		3rd Quarter			4th Quarter		Total Year
	2013
	Revenues	$	330,802	$	340,704	$	334,963		$	338,336	$	1,344,805
	Net earnings	8,662		7,408		7,195			9,368		32,633
	Net earnings per share:
	Basic	$	0.75	$	0.65	$	0.63		$	0.82	$	2.85
	Diluted	0.74		0.64		0.62			0.81		2.8
	2012
	Revenues	$	287,402	$	305,983	$	313,734		$	342,515	$	1,249,633
	Net earnings	4,294		6,954		5,154			7,917		24,319
	Net earnings per share:
	Basic	$	0.37	$	0.59	$	0.44		$	0.68	$	2.09
	Diluted	0.35		0.58		0.43			0.67		2.04
	2011
	Revenues	$	252,288	$	264,209	$	266,127		$	289,992	$	1,072,616
	Net earnings	10,231		6,825		6,733			18,044		41,833
	Net earnings per share:
	Basic	$	0.83	$	0.56	$	0.56		$	1.53	$	3.45
	Diluted	0.81		0.54		0.55			1.49		3.37
	Net realized gains (losses) on investments amounted to:
		1st Quarter		2nd Quarter		3rd Quarter			4th Quarter		Total Year
	2013	$	3,824	$	794	$	(546	)	$	1,955	$	6,026
	2012	238		2,166		268			21,382		24,055
	2011	2,923		1,959		722			2,995		8,598

Insurance_Reserves_Tables

Insurance Reserves (Tables)	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Liability for unpaid losses and LAE	'
	The following table provides an analysis of changes in the liability for losses and LAE, net of reinsurance:
	(in thousands)	2013			2012			2011
	Balance at Beginning of Period
	Unpaid losses on known claims	$	205,589		$	181,972		$	180,334
	IBNR losses	218,552			177,645			164,140
	LAE	148,753			135,787			133,359
	Total unpaid losses and LAE	572,894			495,403			477,833
	Reinsurance recoverables	(13,678		)	(14,640		)	(16,521		)
	Unpaid losses and LAE, net of reinsurance recoverables	559,215			480,764			461,312
	Current Activity
	Loss and LAE incurred:
	Current accident year	1,014,299			926,033			763,109
	Prior accident years	2,948			16,219			4,519
	Total loss and LAE incurred	1,017,247			942,253			767,629
	Loss and LAE payments:
	Current accident year	(593,850		)	(553,549		)	(459,798		)
	Prior accident years	(350,466		)	(310,252		)	(288,379		)
	Total loss and LAE payments	(944,316		)	(863,801		)	(748,177		)
	Balance at End of Period
	Unpaid losses and LAE, net of reinsurance recoverables	632,146			559,215			480,764
	Add back reinsurance recoverables	14,431			13,678			14,640
	Total unpaid losses and LAE	$	646,577		$	572,894		$	495,403
	Unpaid losses on known claims	$	221,447		$	205,589		$	181,972
	IBNR losses	262,660			218,552			177,645
	LAE	162,469			148,753			135,787
	Total unpaid losses and LAE	$	646,577		$	572,894		$	495,403

Reinsurance_Tables

Reinsurance (Tables)	12 Months Ended
	Dec. 31, 2013
Reinsurance Disclosures [Abstract]	'
Schedule of reinsurance assumed and ceded	'
	The following table shows written and earned premium included in earnings for reinsurance assumed and amounts deducted from written and earned premium in connection with reinsurance ceded (in thousands):
	Year	Direct  Written		Reinsurance		Reinsurance			Net Written		% of Amount
		Premium		Assumed		Ceded			Premium		Assumed to
											Net
	2013	$	1,339,803	$	16	$	(9,927	)	$	1,329,892	0	%
	2012	1,254,386		543		(7,731		)	1,247,198		0	%
	2011	1,082,458		8		(6,490		)	1,075,976		0	%
	Year	Direct  Earned		Reinsurance		Reinsurance			Net Earned		% of Amount
		Premium		Assumed		Ceded			Premium		Assumed to
											Net
	2013	$	1,311,942	$	15	$	(9,432	)	$	1,302,525	0	%
	2012	1,190,773		542		(7,225		)	1,184,090		0	%
	2011	1,025,302		7		(6,249		)	1,019,060		0	%

Statutory_Information_Tables

Statutory Information (Tables)	12 Months Ended
	Dec. 31, 2013
Insurance [Abstract]	'
Statutory accounting practices disclosure	'
	Net earnings and capital and surplus on a statutory basis were as follows (in thousands):
	Statutory Net Earnings			Statutory Capital and Surplus
	2013	2012	2011	2013	2012
	$44,906	$31,141	$37,288	$673,973	$613,177

Commitments_And_Contingencies_

Commitments And Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Guarantor Obligations [Line Items]	'
Schedule of Guarantor Obligations [Table Text Block]	'
	The operating leases above include leased vehicles. As vehicles are surrendered, they are sold for cash by the lessor. We guarantee that proceeds from sales will be at least equal to the lessor's depreciated book value. Otherwise, we are credited the excess or we pay the deficit. The lessors depreciated book value at December 31, 2013 on the vehicles we lease was $6.0 million, which represents the maximum deficit we would be required to pay if the lessor received no proceeds from the sale. Historically, we have not made any material additional rental payments due to surrendered vehicles.
Schedule of Rent Expense [Table Text Block]	'
	Lease expense incurred for all leases during the last three years was as follows (in thousands):
		Twelve months ended December 31,
		2013			2012			2011
	Lease expense	$	12,015		$	12,389		$	14,448
	Sublease income	(163		)	(420		)	(441		)
	Total	$	11,851		$	11,969		$	14,007
Schedule of future minimum rental payments for operating leases	'
	Minimum rental commitments under non-cancelable leases with an initial or remaining term of more than one year as of December 31, 2013 were as follows (in thousands):
	Due in	Operating Leases			Capital Leases
	2014	$	9,563		$	742
	2015	8,221			713
	2016	4,431			226
	2017	2,900			86
	2018	2,531			12
	Thereafter	1,157			3
	Total	$	28,803		$	1,783

Additional_Information_Tables

Additional Information (Tables)	12 Months Ended
	Dec. 31, 2013
Additional Information [Abstract]	'
Schedule of allowances for uncollectible accounts	'
	A progression of the aggregate allowance follows (in thousands):
		2013			2012			2011
	Beginning balance	$	16,124		$	13,497		$	12,323
	Provision for losses	20,913			24,884			21,259
	Uncollectible amounts written off	(21,154		)	(22,256		)	(20,085		)
	Ending balance	$	15,884		$	16,124		$	13,497

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income
	The components of other comprehensive income before and after tax are as follows (in thousands):
		Twelve Months Ended December 31,
		2013									2012									2011
		Before Tax			Income Tax			Net			Before Tax			Income Tax			Net			Before Tax			Income Tax			Net
	Accumulated change in postretirement benefit liability, beginning of period	$	(967	)	$	339		$	(629	)	$	519		$	(182	)	$	337		$	791		$	(277	)	$	514
	Effect on other comprehensive income	906			(317		)	589			(1,487		)	520			(966		)	(272		)	95			(177		)
	Accumulated change in postretirement benefit liability, end of period	$	(62	)	$	22		$	(40	)	$	(967	)	$	339		$	(629	)	$	519		$	(182	)	$	337
	Accumulated unrealized gains on investments, net, beginning of period	$	46,892		$	(16,412	)	$	30,480		$	53,817		$	(18,836	)	$	34,981		$	36,884		$	(12,909	)	$	23,974
	Other comprehensive income before reclassification	(15,227		)	5,330			(9,898		)	17,129			(5,995		)	11,134			25,532			(8,936		)	16,596
	Reclassification adjustment for other-than-temporary impairments included in net income	1,468			(514		)	954			1,393			(487		)	905			1,447			(506		)	940
	Reclassification adjustment for realized gains included in net income	(7,495		)	2,623			(4,872		)	(25,447		)	8,907			(16,541		)	(10,045		)	3,516			(6,529		)
	Effect on other comprehensive income	(21,254		)	7,439			(13,815		)	(6,926		)	2,424			(4,502		)	16,934			(5,927		)	11,007
	Accumulated unrealized gains on investments, net, end of period	$	25,638		$	(8,973	)	$	16,665		$	46,892		$	(16,412	)	$	30,480		$	53,817		$	(18,836	)	$	34,981
	Accumulated other comprehensive income, beginning of period	$	45,924		$	(16,073	)	$	29,851		$	54,336		$	(19,018	)	$	35,319		$	37,674		$	(13,186	)	$	24,488
	Change in postretirement benefit liability	906			(317		)	589			(1,487		)	520			(966		)	(272		)	95			(177		)
	Change in unrealized gains on investments, net	(21,254		)	7,439			(13,815		)	(6,926		)	2,424			(4,502		)	16,934			(5,927		)	11,007
	Effect on other comprehensive income	(20,348		)	7,122			(13,226		)	(8,412		)	2,944			(5,468		)	16,662			(5,832		)	10,831
	Accumulated other comprehensive income, end of period	$	25,576		$	(8,952	)	$	16,624		$	45,924		$	(16,073	)	$	29,851		$	54,336		$	(19,018	)	$	35,319

Significant_Reporting_and_Acco2

Significant Reporting and Accounting Policies (Details) (USD $)

3 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

states

states

Concentration Risk [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commissions and other underwriting expenses

'

'

'

'

'

'

'

'

'

'

'

'

$258,624,000

$249,856,000

$231,559,000

'

Provision for income taxes

'

'

'

'

'

'

'

'

'

'

'

'

12,445,000

-2,231,000

11,791,000

'

Net earnings

9,368,000

7,195,000

7,408,000

8,662,000

7,917,000

5,154,000

6,954,000

4,294,000

18,044,000

6,733,000

6,825,000

10,231,000

32,633,000

24,319,000

41,833,000

'

Basic earnings per share (usd per share)

$0.82

$0.63

$0.65

$0.75

$0.68

$0.44

$0.59

$0.37

$1.53

$0.56

$0.56

$0.83

$2.85

$2.09

$3.45

'

Number of states primarilay writes insurance

7

'

'

'

'

'

'

'

'

'

'

'

7

'

'

'

Unpaid losses assumed

-7,800,000

'

'

'

-8,000,000

'

'

'

-8,300,000

'

'

'

-7,800,000

-8,000,000

-8,300,000

'

Available-for-sale securities

26,100,000

'

'

'

'

'

'

'

'

'

'

'

26,100,000

'

'

'

Deferred policy acquisition cost, amortization expense

'

'

'

'

'

'

'

'

'

'

'

'

-206,700,000

-194,900,000

-171,600,000

'

Off premium charges

'

'

'

'

'

'

'

'

'

'

'

'

'90 days

'

'

'

Property and equipment, net

48,061,000

'

'

'

39,301,000

'

'

'

'

'

'

'

48,061,000

39,301,000

'

'

Property and equipment, accumulated depreciation

53,368,000

'

'

'

45,339,000

'

'

'

'

'

'

'

53,368,000

45,339,000

'

'

Capital leases, net

1,800,000

'

'

'

'

'

'

'

'

'

'

'

1,800,000

'

'

'

Capital Leases, accumulated depreciation

-1,700,000

'

'

'

'

'

'

'

'

'

'

'

-1,700,000

'

'

'

Accounting Changes and Error Corrections [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred policy acquisition costs

88,258,000

'

'

'

88,251,000

'

'

'

'

'

'

'

88,258,000

88,251,000

'

'

Current and deferred income taxes

3,985,000

'

'

'

6,558,000

'

'

'

'

'

'

'

3,985,000

6,558,000

'

'

Current and deferred income taxes

28,648,000

'

'

'

25,798,000

'

'

'

'

'

'

'

28,648,000

25,798,000

'

'

Assets

2,317,265,000

'

'

'

2,303,593,000

'

'

'

'

'

'

'

2,317,265,000

2,303,593,000

'

'

Stockholders' Equity Attributable to Parent

656,758,000

'

'

'

656,242,000

'

'

'

661,789,000

'

'

'

656,758,000

656,242,000

661,789,000

655,026,000

Diluted earnings per share (usd per share)

$0.81

$0.62

$0.64

$0.74

$0.67

$0.43

$0.58

$0.35

$1.49

$0.55

$0.54

$0.81

$2.80

$2.04

$3.37

'

Personal auto insurance [Member] | Sales Revenue, Product Line [Member] | Product Concentration Risk [Member]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Concentration Risk [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Portion of total gross written premiums (percent)

'

'

'

'

'

'

'

'

'

'

'

'

93.00%

'

'

'

Personal auto insurance [Member] | Sales Revenue, Product Line [Member] | Geographic Concentration Risk [Member] | California

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Concentration Risk [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Portion of total gross written premiums (percent)

'

'

'

'

'

'

'

'

'

'

'

'

48.00%

'

'

'

Great American Insurance [Member]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Concentration Risk [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unpaid losses assumed

($4,100,000)

'

'

'

($5,400,000)

'

'

'

($7,000,000)

'

'

'

($4,100,000)

($5,400,000)

($7,000,000)

'

Fair_Value_Fair_Value_by_Hiera

Fair Value - Fair Value by Hierarchy (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Long-term debt	$272,632	$288,879
Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Cash and cash equivalents	134,211	'
Percentage of total cash and investments	18.40%	20.50%
Total	291,033	319,817
Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Cash and cash equivalents	0	0
Percentage of total cash and investments	81.20%	78.70%
Total	1,285,345	1,227,486
Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Cash and cash equivalents	0	0
Available-for-sale securities	700	'
Percentage of total cash and investments	0.40%	0.80%
Total	5,860	12,813
Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Cash and cash equivalents	134,211	165,182
Percentage of total cash and investments	100.00%	100.00%
Total	1,582,238	1,560,116
Fixed maturities | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	64,496	81,529
Fixed maturities | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,283,949	1,227,486
Fixed maturities | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	5,860	12,813
Fixed maturities | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,354,305	1,321,828
U.S. government | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	64,496	81,529
U.S. government | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	171	296
U.S. government | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	3,712
U.S. government | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	64,666	85,537
Government-sponsored entities | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	'	0
Government-sponsored entities | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	'	22,140
Government-sponsored entities | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	'	0
Government-sponsored entities | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	'	22,140
State and municipal | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
State and municipal | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	487,111	457,113
State and municipal | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
State and municipal | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	487,111	457,113
Mortgage-backed securities: | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Mortgage-backed securities: | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	359,162	295,675
Mortgage-backed securities: | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Mortgage-backed securities: | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	359,162	295,675
Residential | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Residential | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	323,346	281,907
Residential | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Residential | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	323,346	281,907
Commercial | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Commercial | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	35,816	13,768
Commercial | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Commercial | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	35,816	13,768
Collateralized mortgage obligations | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Collateralized mortgage obligations | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,291	19,307
Collateralized mortgage obligations | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Collateralized mortgage obligations | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,291	19,307
Asset-backed securities | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Asset-backed securities | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	70,573	79,257
Asset-backed securities | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	686	0
Asset-backed securities | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	71,259	79,257
Corporates | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Corporates | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	365,642	353,697
Corporates | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	5,175	9,101
Corporates | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	370,816	362,797
Equity securities | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	91,127	73,106
Equity securities | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Equity securities | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	0
Equity securities | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	91,127	73,106
Short-term investments | Recurring basis | Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,200	'
Short-term investments | Recurring basis | Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	1,396	'
Short-term investments | Recurring basis | Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	0	'
Short-term investments | Recurring basis | Total	'	'
Fair Value, Assets and Liabilities Measured on Recurring Basis	'	'
Available-for-sale securities	$2,596	'

Fair_Value_Level_3_Investments

Fair Value - Level 3 Investments (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Level 3 reconciliation	'	'
Number of securities	9	'
Number of non-binding securities	6	'
Level 3 | Recurring basis	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	$12,813	$15,374
Included in net earnings	852	102
Included in other comprehensive income	-895	397
Purchases	0	15,163
Sales	-3,845	-737
Settlements	-2,729	-5,735
Transfers in	995	5,670
Transfers out	-1,331	-17,420
Balance at end of period	5,860	12,813
Available-for-sale securities	700	'
Level 3 | Recurring basis | U.S. Government	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	3,712	4,438
Included in net earnings	268	-77
Included in other comprehensive income	-418	-52
Purchases	0	0
Sales	-2,968	0
Settlements	-594	-597
Transfers in	0	0
Transfers out	0	0
Balance at end of period	0	3,712
Level 3 | Recurring basis | State and Municipal	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	0	0
Included in net earnings	0	-15
Included in other comprehensive income	0	14
Purchases	0	4,002
Sales	0	0
Settlements	0	-2,750
Transfers in	0	2,781
Transfers out	0	-4,031
Balance at end of period	0	0
Level 3 | Recurring basis | Mortgage-Backed Securities	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	0	0
Included in net earnings	0	0
Included in other comprehensive income	0	32
Purchases	0	7,156
Sales	0	0
Settlements	0	0
Transfers in	0	0
Transfers out	0	-7,188
Balance at end of period	0	0
Level 3 | Recurring basis | Collateralized Mortgage Obligations	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	0	509
Included in net earnings	0	-74
Included in other comprehensive income	0	93
Purchases	0	0
Sales	0	-483
Settlements	0	-44
Transfers in	0	0
Transfers out	0	0
Balance at end of period	0	0
Level 3 | Recurring basis | Corporates	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	9,101	10,426
Included in net earnings	583	269
Included in other comprehensive income	-477	309
Purchases	0	0
Sales	-877	-254
Settlements	-1,824	-2,344
Transfers in	0	2,889
Transfers out	-1,331	-2,195
Balance at end of period	5,175	9,101
Level 3 | Recurring basis | Asset-Backed Securities	'	'
Level 3 reconciliation	'	'
Balance at beginning of period	0	0
Included in net earnings	0	0
Included in other comprehensive income	1	1
Purchases	0	4,005
Sales	0	0
Settlements	-310	0
Transfers in	995	0
Transfers out	0	-4,005
Balance at end of period	686	0
Recovery Rate | Level 3 | Recurring basis	'	'
Level 3 reconciliation	'	'
Available-for-sale securities	100	'
Probability of default (percent)	100.00%	'
Discounted Cash Flow | Level 3 | Recurring basis	'	'
Level 3 reconciliation	'	'
Available-for-sale securities	$600	'

Fair_Value_Fair_Value_of_Finan

Fair Value - Fair Value of Financial Instruments (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term debt	$272,632	$288,879
Carrying Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	134,211	165,182
Total	1,582,238	1,560,116
Long-term debt	275,000	275,000
Fair Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	134,211	165,182
Total	1,582,238	1,560,116
Long-term debt	272,632	288,879
Fixed maturities | Carrying Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	1,354,305	1,321,828
Equity securities | Carrying Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	91,127	73,106
Short-term investments | Carrying Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	2,596	0
Short-term investments | Fair Value	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	2,596	0
Level 1 | Recurring basis	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	134,211	'
Total	291,033	319,817
Level 1 | Recurring basis | Fixed maturities	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	64,496	81,529
Level 1 | Recurring basis | Equity securities	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	91,127	73,106
Level 1 | Recurring basis | Short-term investments	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Available-for-sale securities	$1,200	'

Investments_Textual_Details

Investments - Textual (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Proceeds from sale of securities	$465,100,000	$491,600,000	$262,200,000
Receivable for securities sold	2,791,000	48,467,000	1,152,000
Gross Unrealized Losses	$14,112,000	$1,268,000	'

Investments_Investments_by_maj

Investments - Investments by major category (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$1,345,077	'
Amortized Cost or Cost, Equity securities	74,718	69,992
Amortized Cost or Cost, Total	1,422,390	1,348,042
Gross Unrealized Gains	39,750	48,160
Gross Unrealized Losses	-14,112	-1,268
Fixed maturities	1,354,305	1,321,828
Equity securities	91,127	73,106
Total investments	1,448,027	1,394,934
OTTI Recognized in Accumulated OCI	-3,290	-1,612	[1]
Fixed maturities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,345,077	1,278,051
Gross Unrealized Gains	23,340	45,045
Gross Unrealized Losses	-14,112	-1,268
Fixed maturities	1,354,305	1,321,828
OTTI Recognized in Accumulated OCI, Fixed maturities	-3,290	-1,612	[1]
U.S. government	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	64,194	83,320
Gross Unrealized Gains	900	2,225
Gross Unrealized Losses	-427	-8
Fixed maturities	64,666	85,537
OTTI Recognized in Accumulated OCI, Fixed maturities	0	0	[1]
Government-sponsored entities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	'	21,401
Gross Unrealized Gains	'	740
Gross Unrealized Losses	'	0
Fixed maturities	'	22,140
OTTI Recognized in Accumulated OCI, Fixed maturities	'	0	[1]
State and municipal	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	478,092	438,367
Gross Unrealized Gains	10,789	19,109
Gross Unrealized Losses	-1,771	-364
Fixed maturities	487,111	457,113
OTTI Recognized in Accumulated OCI, Fixed maturities	-73	-53	[1]
Mortgage-backed securities:	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	365,950	288,691
Gross Unrealized Gains	2,324	7,259
Gross Unrealized Losses	-9,113	-275
Fixed maturities	359,162	295,675
OTTI Recognized in Accumulated OCI, Fixed maturities	-2,435	-292	[1]
Residential	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	330,169	275,668
Gross Unrealized Gains	1,985	6,511
Gross Unrealized Losses	-8,809	-272
Fixed maturities	323,346	281,907
OTTI Recognized in Accumulated OCI, Fixed maturities	-2,435	-292	[1]
Commercial	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	35,781	13,023
Gross Unrealized Gains	339	749
Gross Unrealized Losses	-304	-3
Fixed maturities	35,816	13,768
OTTI Recognized in Accumulated OCI, Fixed maturities	0	0	[1]
Collateralized mortgage obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,228	18,847
Gross Unrealized Gains	63	469
Gross Unrealized Losses	0	-9
Fixed maturities	1,291	19,307
OTTI Recognized in Accumulated OCI, Fixed maturities	-161	-244	[1]
Asset-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	71,183	78,931
Gross Unrealized Gains	178	435
Gross Unrealized Losses	-103	-109
Fixed maturities	71,259	79,257
OTTI Recognized in Accumulated OCI, Fixed maturities	-8	-51	[1]
Corporates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	364,430	348,494
Gross Unrealized Gains	9,086	14,807
Gross Unrealized Losses	-2,700	-503
Fixed maturities	370,816	362,797
OTTI Recognized in Accumulated OCI, Fixed maturities	-612	-972	[1]
Equity securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost or Cost, Equity securities	74,718	69,992
Gross Unrealized Gains	16,409	3,115
Gross Unrealized Losses	0	0
Equity securities	91,127	73,106
OTTI Recognized in Accumulated OCI, Equity securities	0	0	[1]
Short-term investments	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost or Cost, Equity securities	2,595	'
Gross Unrealized Gains	1	'
Gross Unrealized Losses	0	'
Equity securities	2,596	'
OTTI Recognized in Accumulated OCI, Equity securities	$0	'
[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.

Investments_Continuous_loss_po

Investments - Continuous loss position investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	450	147
Short-term investments	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	$0	'
Less than 12 Months, Gross Unrealized Losses	0	'
12 Months or More, Fair Value	0	'
12 Months or More, Gross Unrealized Losses	0	'
Less than 12 Months | Short-term investments	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	'
Unrealized Losses as Percentage of Cost	0.00%	'
12 Months or More	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or More, Fair Value	28,371,000	'
12 Months or More, Gross Unrealized Losses	-1,344,000	'
12 Months or More | Short-term investments	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	'
Unrealized Losses as Percentage of Cost	0.00%	'
Rabbi Trust [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	508,432,000	223,903,000
Less than 12 Months, Gross Unrealized Losses	-11,929,000	-1,213,000
12 Months or More, Fair Value	49,688,000	6,397,000
12 Months or More, Gross Unrealized Losses	-2,183,000	-55,000
Rabbi Trust [Member] | Fixed maturities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	508,432,000	223,903,000
Less than 12 Months, Gross Unrealized Losses	-11,929,000	-1,213,000
12 Months or More, Fair Value	49,688,000	6,397,000
12 Months or More, Gross Unrealized Losses	-2,183,000	-55,000
Rabbi Trust [Member] | U.S. government	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	26,396,000	11,758,000
Less than 12 Months, Gross Unrealized Losses	-427,000	-8,000
12 Months or More, Fair Value	0	0
12 Months or More, Gross Unrealized Losses	0	0
Rabbi Trust [Member] | State and municipal	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	121,431,000	52,399,000
Less than 12 Months, Gross Unrealized Losses	-1,425,000	-364,000
12 Months or More, Fair Value	8,062,000	0
12 Months or More, Gross Unrealized Losses	-346,000	0
Rabbi Trust [Member] | Mortgage-backed securities:	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	230,133,000	76,000,000
Less than 12 Months, Gross Unrealized Losses	-7,354,000	-272,000
12 Months or More, Fair Value	40,415,000	259,000
12 Months or More, Gross Unrealized Losses	-1,758,000	-3,000
Rabbi Trust [Member] | Residential	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	207,821,000	75,927,000
Less than 12 Months, Gross Unrealized Losses	-7,064,000	-272,000
12 Months or More, Fair Value	39,659,000	0
12 Months or More, Gross Unrealized Losses	-1,744,000	0
Rabbi Trust [Member] | Commercial	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	22,311,000	73,000
Less than 12 Months, Gross Unrealized Losses	-290,000	0
12 Months or More, Fair Value	756,000	259,000
12 Months or More, Gross Unrealized Losses	-14,000	-3,000
Rabbi Trust [Member] | Collateralized mortgage obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	1,264,000
Less than 12 Months, Gross Unrealized Losses	0	-9,000
12 Months or More, Fair Value	0	0
12 Months or More, Gross Unrealized Losses	0	0
Rabbi Trust [Member] | Asset-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	14,738,000	11,941,000
Less than 12 Months, Gross Unrealized Losses	-103,000	-57,000
12 Months or More, Fair Value	0	6,138,000
12 Months or More, Gross Unrealized Losses	0	-52,000
Rabbi Trust [Member] | Corporates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	115,735,000	70,540,000
Less than 12 Months, Gross Unrealized Losses	-2,621,000	-503,000
12 Months or More, Fair Value	1,212,000	0
12 Months or More, Gross Unrealized Losses	-79,000	0
Rabbi Trust [Member] | Equity securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, Fair Value	0	0
Less than 12 Months, Gross Unrealized Losses	0	0
12 Months or More, Fair Value	0	0
12 Months or More, Gross Unrealized Losses	0	0
Rabbi Trust [Member] | Less than 12 Months	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	410	144
Unrealized Losses as Percentage of Cost	2.30%	0.50%
Rabbi Trust [Member] | Less than 12 Months | Fixed maturities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	410	144
Unrealized Losses as Percentage of Cost	2.30%	0.50%
Rabbi Trust [Member] | Less than 12 Months | U.S. government	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	11	3
Unrealized Losses as Percentage of Cost	1.60%	0.10%
Rabbi Trust [Member] | Less than 12 Months | State and municipal	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	51	32
Unrealized Losses as Percentage of Cost	1.20%	0.70%
Rabbi Trust [Member] | Less than 12 Months | Mortgage-backed securities:	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	240	43
Unrealized Losses as Percentage of Cost	3.10%	0.40%
Rabbi Trust [Member] | Less than 12 Months | Residential	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	229	42
Unrealized Losses as Percentage of Cost	3.30%	0.40%
Rabbi Trust [Member] | Less than 12 Months | Commercial	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	11	1
Unrealized Losses as Percentage of Cost	1.30%	0.60%
Rabbi Trust [Member] | Less than 12 Months | Collateralized mortgage obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	2
Unrealized Losses as Percentage of Cost	0.00%	0.70%
Rabbi Trust [Member] | Less than 12 Months | Asset-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	18	6
Unrealized Losses as Percentage of Cost	0.70%	0.50%
Rabbi Trust [Member] | Less than 12 Months | Corporates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	90	58
Unrealized Losses as Percentage of Cost	2.20%	0.70%
Rabbi Trust [Member] | Less than 12 Months | Equity securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
Rabbi Trust [Member] | 12 Months or More	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	40	3
Unrealized Losses as Percentage of Cost	4.20%	0.80%
Rabbi Trust [Member] | 12 Months or More | Fixed maturities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	40	3
Unrealized Losses as Percentage of Cost	4.20%	0.80%
Rabbi Trust [Member] | 12 Months or More | U.S. government	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
Rabbi Trust [Member] | 12 Months or More | State and municipal	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	4	0
Unrealized Losses as Percentage of Cost	4.10%	0.00%
Rabbi Trust [Member] | 12 Months or More | Mortgage-backed securities:	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	35	1
Unrealized Losses as Percentage of Cost	4.20%	1.10%
Rabbi Trust [Member] | 12 Months or More | Residential	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	34	0
Unrealized Losses as Percentage of Cost	4.20%	0.00%
Rabbi Trust [Member] | 12 Months or More | Commercial	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	1	1
Unrealized Losses as Percentage of Cost	1.80%	1.10%
Rabbi Trust [Member] | 12 Months or More | Collateralized mortgage obligations	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
Rabbi Trust [Member] | 12 Months or More | Asset-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	2
Unrealized Losses as Percentage of Cost	0.00%	0.80%
Rabbi Trust [Member] | 12 Months or More | Corporates	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	1	0
Unrealized Losses as Percentage of Cost	6.10%	0.00%
Rabbi Trust [Member] | 12 Months or More | Equity securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Number of Securities with Unrealized Losses	0	0
Unrealized Losses as Percentage of Cost	0.00%	0.00%
Maximum [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Threshold for impairment evaluation, percentage of book value	95.00%	'
Minimum [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Threshold for impairment evaluation, unrealized loss amount	$100,000	'

Investments_Summary_of_unreali

Investments - Summary of unrealized gains and losses (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	Securities	Securities
Investments, Debt and Equity Securities [Abstract]	'	'
Number of positions held with unrealized gains	590	749
Number of positions held with unrealized losses	450	147
Number of positions held that individually exceed unrealized gains of $500,000	1	3
Individual unrealized gain threshold	$500,000	$500,000
Number of positions held that individually exceed unrealized losses of $500,000	0	0
Individual unrealized loss threshold	$500,000	$500,000
Percentage of positions held with unrealized gains that were investment grade	81.00%	81.00%
Percentage of positions held with unrealized losses that were investment grade	93.00%	86.00%
Percentage of fair value held with unrealized gains that were investment grade	88.00%	92.00%
Percentage of fair value held with unrealized losses that were investment grade	95.00%	93.00%

Investments_Unrealized_losses_

Investments - Unrealized losses by age and severity (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses	$558,121
Total Gross Unrealized Losses	14,112
0-3 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses, 0-12 Months	205,542
Total Gross Unrealized Losses, 0-12 Months	-1,674
3-6 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses, 0-12 Months	14,964
Total Gross Unrealized Losses, 0-12 Months	-130
6-9 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses, 0-12 Months	269,559
Total Gross Unrealized Losses, 0-12 Months	-9,851
9-12 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses, 0-12 Months	39,685
Total Gross Unrealized Losses, 0-12 Months	-1,112
Greater than twelve months	'
Schedule of Available-for-sale Securities [Line Items]	'
Fair Value of Securities with Unrealized Losses, Greater Than 12 Months	28,371
Total Gross Unrealized Losses, Greater Than 12 Months	-1,344
Less Than 5% as a Percentage of Amortized Cost or Cost	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses	8,068
Less Than 5% as a Percentage of Amortized Cost or Cost | 0-3 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-1,654
Less Than 5% as a Percentage of Amortized Cost or Cost | 3-6 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-130
Less Than 5% as a Percentage of Amortized Cost or Cost | 6-9 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-4,957
Less Than 5% as a Percentage of Amortized Cost or Cost | 9-12 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-757
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, Greater Than 12 Months	-571
5% - 10% as a Percentage of Amortized Cost or Cost	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses	6,044
5% - 10% as a Percentage of Amortized Cost or Cost | 0-3 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-20
5% - 10% as a Percentage of Amortized Cost or Cost | 3-6 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	0
5% - 10% as a Percentage of Amortized Cost or Cost | 6-9 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-4,894
5% - 10% as a Percentage of Amortized Cost or Cost | 9-12 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	-355
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, Greater Than 12 Months	-774
Greater Than 10% as a Percentage of Amortized Cost or Cost	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses	0
Greater Than 10% as a Percentage of Amortized Cost or Cost | 0-3 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	0
Greater Than 10% as a Percentage of Amortized Cost or Cost | 3-6 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	0
Greater Than 10% as a Percentage of Amortized Cost or Cost | 6-9 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	0
Greater Than 10% as a Percentage of Amortized Cost or Cost | 9-12 months	'
Schedule of Available-for-sale Securities [Line Items]	'
Total Gross Unrealized Losses, 0-12 Months	0
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, Greater Than 12 Months	$0

Investments_Change_in_unrealiz

Investments - Change in unrealized gains and losses (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]	'		'	'
Deferred Tax Assets, Valuation Allowance	'		$6,400,000	'
Unrealized holding gains (losses) on securities arising during the period, pre-tax	-15,227,000		17,129,000	25,532,000
Unrealized holding gains (losses) on securities arising during period, net of tax	-12,724,000		-5,866,000	9,721,000
Realized (gains) losses on securities sold, pre-tax	7,495,000		25,447,000	10,045,000
Net impairment losses recognized in earnings	-1,468,000		-1,393,000	-1,447,000
Securities	'		'	'
Schedule of Available-for-sale Securities [Line Items]	'		'	'
Unrealized holding gains (losses) on securities arising during the period, tax effects	5,330,000		-5,995,000	-8,936,000
Unrealized holding gains (losses) on securities arising during period, net of tax	-9,898,000		11,134,000	16,596,000
Realized (gains) losses on securities sold, tax effects	2,623,000	[1]	8,907,000	3,516,000
Realized (gains) losses on securities sold, net of tax	-4,872,000	[1]	-16,541,000	-6,529,000
Impairment loss recognized in earnings, tax effects	-514,000		-487,000	-506,000
Impairment loss recognized in earnings	-954,000		-905,000	-940,000
Change in unrealized gains (losses) on marketable securities, net, tax effects	7,439,000		2,424,000	-5,927,000
Change in unrealized gains (losses) on marketable securities, net, net of tax	13,815,000		4,502,000	-11,007,000
Fixed maturities	'		'	'
Schedule of Available-for-sale Securities [Line Items]	'		'	'
Unrealized holding gains (losses) on securities arising during the period, pre-tax	-29,199,000		10,678,000	25,233,000
Realized (gains) losses on securities sold, pre-tax	-6,818,000	[1]	-11,594,000	-7,295,000
Net impairment losses recognized in earnings	1,468,000		1,393,000	1,447,000
Unrealized gains (losses) on investments, net	-34,549,000		476,000	19,384,000
Equity securities	'		'	'
Schedule of Available-for-sale Securities [Line Items]	'		'	'
Unrealized holding gains (losses) on securities arising during the period, pre-tax	13,971,000		6,451,000	299,000
Realized (gains) losses on securities sold, pre-tax	-677,000	[1]	-13,853,000	-2,750,000
Net impairment losses recognized in earnings	0		0	0
Unrealized gains (losses) on investments, net	13,294,000		-7,402,000	-2,451,000
Short-term investments	'		'	'
Schedule of Available-for-sale Securities [Line Items]	'		'	'
Unrealized holding gains (losses) on securities arising during the period, pre-tax	1,000		0	0
Realized (gains) losses on securities sold, pre-tax	0		0	0
Net impairment losses recognized in earnings	0		0	0
Unrealized gains (losses) on investments, net	$1,000		$0	$0
[1]	The tax effect is gross of the deferred tax valuation allowance of $6.4 million related to the sale of equity securities in 2012.

Investments_Credit_losses_roll

Investments - Credit losses rollforward (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Credit losses on fixed maturity securities	'	'
Balance at beginning of year	$487	$1,728
Additions for previously impaired securities	27	0
Additions for newly impaired securities	659	110
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Previously All Non-credit	26	0
Securities sold and paydowns	-206	-616
Securities that no longer have a non-credit component	-37	-735
Balance at end of year	$956	$487

Investments_Investments_by_con

Investments - Investments by contractual maturity (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
One year or less, fair value	$69,364	'
One year or less, amortized cost	68,885	'
After one year through five years, fair value	566,487	'
After one year through five years, amortized cost	553,683	'
After five years through ten years, fair value	275,764	'
After five years through ten years, amortized cost	273,351	'
After ten years, fair value	10,978	'
After ten years, amortized cost basis	10,797	'
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	431,712	'
Mortgage-backed, asset-backed and collateralized mortgage obligations, amortized cost	438,361	'
Fixed maturities	1,354,305	1,321,828
Amortized cost	1,345,077	'
Securities with Unrealized Gains	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
One year or less, fair value	61,980	'
After one year through five years, fair value	423,920	'
After five years through ten years, fair value	149,976	'
After ten years, fair value	6,168	'
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	143,806	'
Fixed maturities	785,851	'
Securities with Unrealized Losses	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
One year or less, fair value	1,517	'
After one year through five years, fair value	140,721	'
After five years through ten years, fair value	125,788	'
After ten years, fair value	4,810	'
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	285,285	'
Fixed maturities	558,121	'
Securities with No Unrealized Gains or Losses	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
One year or less, fair value	5,867	'
After one year through five years, fair value	1,847	'
After five years through ten years, fair value	0	'
After ten years, fair value	0	'
Mortgage-backed, asset-backed and collateralized mortgage obligations, fair value	2,620	'
Fixed maturities	$10,334	'

InvestmentsInvestment_Income_D

Investments-Investment Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]	'	'	'
Interest income on fixed maturities, cash and cash equivalents	$36,113	$38,234	$41,900
Dividends on equity securities	1,711	1,415	693
Gross investment income	37,825	39,649	42,593
Investment expenses	-2,279	-2,077	-2,036
Net investment income	$35,546	$37,571	$40,557

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	12 Months Ended				0 Months Ended	12 Months Ended			1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 31, 2011	Oct. 17, 2013	Dec. 31, 2004	Dec. 31, 2010	Feb. 29, 2004	Sep. 30, 2012	Dec. 31, 2013	Sep. 30, 2013
				Revolving Credit Facility	Senior Notes Due 2014	Senior Notes Due 2014	Senior Notes Due 2014	Senior Notes Due 2014	Senior Notes Due 2022	Senior Notes Due 2022	Senior Notes Due 2022
					Senior Notes	Senior Notes	Senior Notes	Senior Notes	Senior Notes	Senior Notes	Senior Notes
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Principal amount	'	'	'	'	'	'	'	$200,000,000	'	'	$275,000,000
Effective yield	'	'	'	'	'	'	'	5.55%	'	'	'
Coupon rate	'	'	'	'	'	'	'	5.50%	'	'	5.00%
Capitalized debt issuance costs	'	'	'	'	'	2,100,000	'	'	2,200,000	'	'
Long-term debt	272,632,000	288,879,000	'	'	'	'	'	'	'	'	'
Amount of repurchased debt	'	'	'	'	'	'	5,000,000	'	'	'	'
Outstanding principal	'	'	'	'	'	'	195,000,000	'	'	'	'
Make whole price of redeemed debt	'	'	'	'	106.73%	'	'	'	'	'	'
Repurchase amount	'	'	'	'	208,100,000	'	'	'	'	'	'
Interest payable	'	'	'	'	1,800,000	'	'	'	'	'	'
Fair value spread to U.S. Treasury Note rate	'	'	'	'	'	'	'	'	'	2.60%	'
Term of note used	'	'	'	'	'	'	'	'	'	'	'10 years
Treasury note rate used for debt fair value calculation	'	'	'	'	'	'	'	'	'	'	3.03%
Interest payments on debt	13,800,000	12,500,000	10,700,000	'	'	'	'	'	'	'	'
Credit facility capacity	'	'	'	$50,000,000	'	'	'	'	'	'	'
Term of revolving credit facility	'	'	'	'3 years	'	'	'	'	'	'	'

Income_Taxesreconciliation_to_

Income Taxes-reconciliation to GAAP effective tax rate (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Income tax payments	$7,600,000	$9,000,000	$9,200,000
Federal statutory income tax rate (percent)	35.00%	'	'
Income tax reconciliation	'	'	'
Earnings before income taxes	45,078,000	22,088,000	53,624,000
Income taxes at statutory rates	15,777,000	7,731,000	18,768,000
Dividends-received deduction	-357,000	-296,000	-145,000
Tax-exempt interest	-2,743,000	-3,294,000	-3,510,000
Adjustment to valuation allowance	-48,000	-6,402,000	-3,507,000
Other	-184,000	30,000	184,000
Provision for income taxes	$12,445,000	($2,231,000)	$11,791,000
GAAP effective tax rate (percent)	27.60%	-10.10%	22.00%

Income_TaxesProvision_for_inco

Income Taxes-Provision for income taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]	'	'	'
Current	$10,541	$3,605	$12,416
Deferred	1,904	-5,836	-625
Provision for income taxes	$12,445	($2,231)	$11,791

Income_TaxesDeferred_Tax_Asset

Income Taxes-Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax assets:	'	'
Discount on loss reserves	$7,045	$9,066
Unearned premium reserve	39,401	37,485
Bad debts	5,559	5,670
Accrued bonuses	2,442	2,269
Deferred compensation	4,842	4,356
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	2,040	0
Deferred Tax Assets, Other	5,473	9,044
Gross deferred tax assets	66,803	67,891
Valuation allowance for deferred tax assets	-165	-213
Deferred tax assets, net of valuation allowance	66,638	67,677
Deferred tax liabilities:	'	'
Deferred policy acquisition costs	-30,890	-30,888
Investment securities – unrealized gains	-8,973	-16,412
Other	-2,111	-1,138
Net deferred tax assets	-41,975	-48,438
Net deferred tax assets	24,663	19,240
Current income taxes	3,985	6,558
Current and deferred income taxes	$28,648	$25,798

Computation_Of_Earnings_Per_Sh2

Computation Of Earnings Per Share (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, except Per Share data, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Sep. 30, 2011

Jun. 30, 2011

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Computation of net earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net earnings

$9,368

$7,195

$7,408

$8,662

$7,917

$5,154

$6,954

$4,294

$18,044

$6,733

$6,825

$10,231

$32,633

$24,319

$41,833

Average basic shares outstanding (shares)

'

'

'

'

'

'

'

'

'

'

'

'

11,451

11,660

12,111

Basic earnings per share (usd per share)

$0.82

$0.63

$0.65

$0.75

$0.68

$0.44

$0.59

$0.37

$1.53

$0.56

$0.56

$0.83

$2.85

$2.09

$3.45

Average diluted shares outstanding (shares)

'

'

'

'

'

'

'

'

'

'

'

'

11,657

11,941

12,414

Diluted earnings per share (usd per share)

$0.81

$0.62

$0.64

$0.74

$0.67

$0.43

$0.58

$0.35

$1.49

$0.55

$0.54

$0.81

$2.80

$2.04

$3.37

Restricted stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Computation of net earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dilutive shares

'

'

'

'

'

'

'

'

'

'

'

'

46

28

72

Stock options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Computation of net earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dilutive shares

'

'

'

'

'

'

'

'

'

'

'

'

29

97

117

Performance Shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Computation of net earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dilutive shares

'

'

'

'

'

'

'

'

'

'

'

'

130

156

114

ShareBased_Compensation_Plans_

Share-Based Compensation - Plans (Details) (USD $)	12 Months Ended			0 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 02, 2011	Aug. 02, 2011	Jul. 31, 2007	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
				Restricted stock	Restricted Stock Plan	Restricted Stock Plan	ESPP	ESPP	SOP
				Officer	Restricted stock	Restricted stock		Common stock	Common stock
					Officer	Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'	'
Shares reserved for issuance	'	'	'	'	'	'	1,000,000	'	'
Awards granted	17,934	54,600	111,848	72,234	72,234	72,234	'	'	'
Discount from market price on purchase date	'	'	'	'	'	'	'	15.00%	'
Maximum percentage of employee base salary	'	'	'	'	'	'	'	25.00%	'
Maximum annual purchase amount per employee	'	'	'	'	'	'	'	$25,000	'
Expected option life	'	'	'	'	'	'	'	'	'7 years 6 months
Share restriction period, from date of grant	'	'	'	'	'	'	'	'	'2 years
Share restriction period, from exercise date	'	'	'	'	'	'	'	'	'1 year

Sharebased_CompensationRestric

Share-based Compensation-Restricted Stock (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Number of Shares	'	'	'
Granted, Number of Shares	17,934	54,600	111,848

ShareBased_Compensation_Fair_V

Share-Based Compensation - Fair Value Assumptions (Details) (Stock options, USD $)	12 Months Ended
	Dec. 31, 2013
2004 Grants	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Weighted-average grant date fair value (usd per share)	$13.87
Dividend yield (percent)	0.70%
Expected volatility (percent)	33.00%
Risk-free interest rate (percent)	4.30%
Expected life (in years)	'7 years 6 months
Weighted-average grant exercise price (usd per share)	$33.56
Outstanding	16,000
2003 Grants	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Weighted-average grant date fair value (usd per share)	$5.97
Dividend yield (percent)	1.40%
Expected volatility (percent)	33.00%
Risk-free interest rate (percent)	4.00%
Expected life (in years)	'7 years 6 months
Weighted-average grant exercise price (usd per share)	$16.11
Outstanding	0

ShareBased_Compensation_Stock_

Share-Based Compensation - Stock Option Activity (Details) (SOP, Stock options, USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013
SOP | Stock options	'
Stock option activity	'
Outstanding	91,357
Exercised	-75,357
Outstanding	16,000
Vested	16,000
Exercisable	16,000
Stock option activity, weighted-average exercise price	'
Outstanding, weighted-average exercise price	$31.32
Granted, weighted-average exercise price	$30.84
Outstanding, weighted-average exercise price	$33.58
Vested, weighted-average exercise price	$33.58
Exercisable, weighted-average exercise price	$33.58
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]	'
Outstanding, weighted-average remaining term	'1 month 9 days
Vested, weighted-average remaining term	'1 month 9 days
Exercisable, weighted-average remaining term	'1 month 9 days
Outstanding, aggregate intrinsic value	$0.60	[1]
Vested, aggregate intrinsic value	0.6	[1]
Exercisable, aggregate intrinsic value	$0.60	[1]
[1]	The intrinsic value for the stock options is calculated based on the difference between the exercise price of the underlying awards and our closing stock price as of the reporting date.

ShareBased_Compensation_Additi

Share-Based Compensation - Additional Disclosures (Details) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

21-May-13

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Stock options

Stock options

Stock options

2013 Plan

Restricted Stock Plan

Restricted Stock Plan

Restricted Stock Plan

SOP

SOP

SOP

Directors Plan

Directors Plan

Directors Plan

ESPP

ESPP

ESPP

ESPP

PSP

PSP

PSP

Executive Officer [Member]

Stock options

Stock options

Common Stock

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

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Award contractual life

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'10 years

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Shares reserved for future issuance (shares)

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750,000

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Cash received from option exercises

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$1,300,000

$600,000

$900,000

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Tax benefit realized from exercise of stock options

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500,000

600,000

500,000

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Total intrinsic value of options exercised

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2,400,000

3,900,000

1,800,000

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Expense Recognized in Earnings

4,009,000

3,249,000

4,224,000

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1,190,000

1,190,000

960,000

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385,000

300,000

350,000

54,000

55,000

42,000

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2,380,000

1,704,000

2,872,000

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Tax Benefit

1,384,000

1,118,000

1,464,000

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417,000

417,000

336,000

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135,000

105,000

123,000

0

0

0

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833,000

596,000

1,005,000

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Shares executives surrendered to the company

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15,315

Stock options exercised

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75,357

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30,357

Discount from market price on purchase date

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15.00%

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Maximum percentage of employee base salary

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25.00%

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Maximum annual purchase amount per employee

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$25,000

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Shares reserved for issuance

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1,000,000

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Outstanding

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16,000

91,357

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59,945

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ShareBased_Compensation_Share_

Share-Based Compensation Share Awards (Details)

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Aug. 02, 2011

Dec. 31, 2013

Non-employee Directors' Stock [Member]

Non-employee Directors' Stock [Member]

Non-employee Directors' Stock [Member]

Performance Shares

Performance Shares

Performance Shares

2013 Plan

Officer

Officer

Restricted stock

2013 Plan

Restricted stock

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

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Awards granted

17,934

54,600

111,848

6,517

5,502

6,657

17,934

49,098

32,957

6,517

72,234

0

Benefit_PlansNarrative_Details

Benefit Plans-Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Maximum employee annual contribution	$17,500	'	'
Maximum employee annual contribution, percent	25.00%	'	'
Minimum age eligible for catch-up contributions	'50 years	'	'
Maximum employee annual catch-up contribution	5,500	'	'
Maximum annual contribution per employee, amount	12,750	'	'
Employer contribution	4,900,000	4,600,000	4,000,000
Unrecognized actuarial gain, gross	-1,000,000	'	'
Unrecognized actuarial gain, net	600,000	'	'
Plan amendment	0	1,224,000	'
Amortization of net gains (losses)	100,000	'	'
Amortization of prior service cost	200,000	'	'
Funded status at end of year	-4,473,000	-5,004,000	'
Estimated future employer contributions in next fiscal year	300,000	'	'
Benefit obligation	4,473,000	5,004,000	3,526,000
Deferred compensation, excluding share-based payments and retirement benefits [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Recorded liability	13,800,000	12,400,000	11,100,000
Interest expense	600,000	600,000	500,000
Supplemental Employee Retirement Plan, Defined Contribution Plan [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Employer contribution	100,000	'	'
Statutory annual compensaiton limit	255,000	'	'
Cost recognized	'	100,000	100,000
Rabbi Trust [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Investments in the rabbi trust	$1,300,000	'	'
Threshold One [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Maximum employer annual contribution per employee, (percent)	4.00%	'	'
Employer match after initial threshold, percent	100.00%	'	'
Threshold Two [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Maximum employer annual contribution per employee, (percent)	2.00%	'	'
Employer match after initial threshold, percent	50.00%	'	'

Benefit_PlansNet_Benefit_Oblig

Benefit Plans-Net Benefit Obligation at End of Year (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'
Net benefit obligation at end of year	$5,004	$3,526	'
Service cost	331	119	102
Interest cost	159	136	164
Participant contributions	27	23	'
Plan amendment	0	1,224	'
Assumption change	-342	285	'
Actuarial (gain) loss	-364	-45	'
Gross benefits paid	-342	-264	'
Net benefit obligation at end of year	$4,473	$5,004	$3,526

Benefit_PlansWeighted_Average_

Benefit Plans-Weighted Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]	'	'	'
Discount rate	4.10%	3.30%	4.00%
Health care cost trend rate assumed for next fiscal year	8.00%	'	'
Ultimate health care cost trend rate	5.50%	'	'
Year that rate reaches ultimate trend rate	'2035	'	'

Benefit_PlansNet_Periodic_Bene

Benefit Plans-Net Periodic Benefit Cost (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]	'	'	'
Service cost	$331	$119	$102
Interest cost	159	136	164
Amortization of prior service cost	199	0	0
Amortization of net cumulative (gain)/loss	0	-23	-63
Net periodic post-retirement benefit cost	$690	$232	$202

Benefit_PlansEffect_of_OnePerc

Benefit Plans-Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract]	'	'	'
Post-retirement benefit obligations 1% increase	$349	$389	$311
Post-retirement benefit obligations 1% decrease	-318	-363	-276
Service and interest cost components 1% increase	53	56	35
Service and interest cost components 1% decrease	($47)	($49)	($29)

Benefit_PlansFair_Value_of_Pla

Benefit Plans-Fair Value of Plan Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]	'	'
Fair value of plan assets at beginning of year	$0	$0
Employer contributions	315	241
Participant contributions	27	23
Gross benefits paid	-342	-264
Fair value of plan assets at end of year	$0	$0

Benefit_Plans_Amount_Recognize

Benefit Plans- Amount Recognized in Balance Sheet (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]	'	'	'
Fair value of plan assets	$0	$0	$0
Benefit obligation	4,473	5,004	3,526
Funded status at end of year	-4,473	-5,004	'
Contributions made after the measurement date	0	0	'
Unrecognized actuarial net (gain) loss	0	0	'
Unrecognized prior service cost	$0	$0	'

Benefit_Plans_Expected_Future_

Benefit Plans- Expected Future Benefit Payments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]	'	'	'
Next twelve months	$292,000	$315,000	$241,000
Year two	304,000	341,000	250,000
Year three	346,000	356,000	258,000
Year four	361,000	390,000	258,000
Year five	398,000	395,000	264,000
Years five through ten	2,459,000	2,474,000	1,318,000
Total expected future benefit payments	4,160,000	4,270,000	2,590,000
Estimated future employer contributions in next fiscal year	$300,000	'	'

Quarterly_Operating_Results_De

Quarterly Operating Results (Details) (USD $)	3 Months Ended												12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Total revenues	$338,336	$334,963	$340,704	$330,802	$342,515	$313,734	$305,983	$287,402	$289,992	$266,127	$264,209	$252,288	$1,344,805	$1,249,633	$1,072,616
Net earnings	9,368	7,195	7,408	8,662	7,917	5,154	6,954	4,294	18,044	6,733	6,825	10,231	32,633	24,319	41,833
Basic earnings per share (usd per share)	$0.82	$0.63	$0.65	$0.75	$0.68	$0.44	$0.59	$0.37	$1.53	$0.56	$0.56	$0.83	$2.85	$2.09	$3.45
Diluted earnings per share (usd per share)	$0.81	$0.62	$0.64	$0.74	$0.67	$0.43	$0.58	$0.35	$1.49	$0.55	$0.54	$0.81	$2.80	$2.04	$3.37
Realized gains (losses) on investments	$1,955	($546)	$794	$3,824	$21,382	$268	$2,166	$238	$2,995	$722	$1,959	$2,923	$6,026	$24,055	$8,598

Insurance_Reserves_Details

Insurance Reserves (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Balance at Beginning of Period [Abstract]	'	'	'
Unpaid losses on known claims	$205,589	$181,972	$180,334
IBNR losses	218,552	177,645	164,140
LAE	148,753	135,787	133,359
Total unpaid losses and LAE	572,894	495,403	477,833
Reinsurance recoverables	-13,678	-14,640	-16,521
Unpaid losses and LAE, net of reinsurance recoverables	559,215	480,764	461,312
Current Activity [Abstract]	'	'	'
Loss and LAE incurred, current accident year	1,014,299	926,033	763,109
Loss and LAE incurred, prior accident years	2,948	16,219	4,519
Total loss and LAE incurred	1,017,247	942,253	767,629
Loss and LAE payments, current accident year	-593,850	-553,549	-459,798
Loss and LAE payments, prior accident years	-350,466	-310,252	-288,379
Total loss and LAE payments	-944,316	-863,801	-748,177
Balance at End of Period [Abstract]	'	'	'
Unpaid losses and LAE, net of reinsurance recoverables	632,146	559,215	480,764
Add back reinsurance recoverables	14,431	13,678	14,640
Total unpaid losses and LAE	646,577	572,894	495,403
Unpaid losses on known claims	221,447	205,589	181,972
IBNR losses	262,660	218,552	177,645
LAE	162,469	148,753	135,787
Total unpaid losses and LAE	$646,577	$572,894	$495,403

ReinsuranceTable_Details

Reinsurance-Table (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance Disclosures [Abstract]	'	'	'
Direct written premium, gross amount	$1,339,803	$1,254,386	$1,082,458
Direct written premium, amount assumed from other companies	16	543	8
Direct written premium, amount ceded to other companies	-9,927	-7,731	-6,490
Direct written premium, net amount	1,329,892	1,247,198	1,075,976
Direct written premium, percentage of amount assumed to net	0.00%	0.00%	0.00%
Direct earned premium, gross amount	1,311,942	1,190,773	1,025,302
Direct earned premium, amount assumed from other companies	15	542	7
Direct earned premium, amount ceded to other companies	-9,432	-7,225	-6,249
Direct earned premium, net amount	$1,302,525	$1,184,090	$1,019,060
Direct earned premium, percentage of amount assumed to net	0.00%	0.00%	0.00%

Reinsurance_Narrative_Details

Reinsurance- Narrative (Details) (USD $)	9 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'
Direct written premium, amount assumed from other companies	'	$16,000	$543,000	$8,000
Liability for unpaid losses and LAE	8,000,000	7,800,000	8,000,000	8,300,000
Maximum third party recovery	'	55,000,000	'	5,000,000
Minimum loss threshold per event	'	5,000,000	'	20,000,000
Additional coverage, loss coverage base per event	25,000,000	45,000,000	'	'
Additional coverage, minimum loss threshold per event	5,000,000	5,000,000	'	'
Reduction in losses due to amount ceded to other companies	'	-1,600,000	-2,500,000	-1,000,000
Extra-Contractual Loss Reinsurance [Member]	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'
Maximum third party recovery	'	10,000,000	'	'
Minimum loss threshold per event	'	5,000,000	'	'
Personal auto insurance [Member]	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'
Maximum third party recovery	'	700,000	'	'
Minimum loss threshold per event	'	300,000	'	'
GAI [Member]	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'
Liability for unpaid losses and LAE	5,400,000	4,100,000	5,400,000	7,000,000
Maximum [Member] | Involuntary Pools and Associations [Member]	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'
Amount assumed from other companies	'	$100,000	$100,000	$100,000

Statutory_Information_Details

Statutory Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Insurance [Abstract]	'	'	'
Statutory net earnings	$44,906,000	$31,141,000	$37,288,000
Statutory policyholders' surplus	673,973,000	613,177,000	'
Statutory net earnings from subsidiaries sold	'	100,000	-900,000
Statutory capital and surplus required	143,800,000	'	'
Amount available for dividend distribution without prior approval from regulatory agency	$66,800,000	'	'

Commitments_And_Contingencies_1

Commitments And Contingencies Details (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
2013	$9,563,000	'	'
2014	8,221,000	'	'
2015	4,431,000	'	'
2016	2,900,000	'	'
2017	2,531,000	'	'
Thereafter	1,157,000	'	'
Total	28,803,000	'	'
Operating leases, lease expiration period	'8 years	'	'
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
2013	742,000	'	'
2014	713,000	'	'
2015	226,000	'	'
2016	86,000	'	'
2017	12,000	'	'
Thereafter	3,000	'	'
Total	1,783,000	'	'
Lease expense	12,015,000	12,389,000	14,448,000
Sublease income	163,000	-420,000	-441,000
Total	11,851,000	11,969,000	14,007,000
Guarantor Obligations, Maximum Exposure, Undiscounted	6,000,000	'	'
Birmingham Alabama and Los Angeles California [Member]	'	'	'
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
Total	$16,700,000	'	'

Additional_Information_Details

Additional Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts Receivable [Roll Forward]	'	'	'
Beginning balance	$16,124,000	$13,497,000	$12,323,000
Provision for losses	20,913,000	24,884,000	21,259,000
Uncollectible amounts written off	-21,154,000	-22,256,000	-20,085,000
Ending balance	15,884,000	16,124,000	13,497,000
Negative cash book balances	$50,500,000	$45,400,000	$5,900,000

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Before Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	$45,924	$54,336	$37,674
Effect on other comprehensive income	-20,348	-8,412	16,662
Accumulated other comprehensive income, end of period	25,576	45,924	54,336
Income Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	-16,073	-19,018	-13,186
Effect on other comprehensive income	7,122	2,944	-5,832
Accumulated other comprehensive income, end of period	-8,952	-16,073	-19,018
Net [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	29,851	35,319	24,488
Accumulated other comprehensive income, end of period	16,624	29,851	35,319
Accumulated Change Postretirement Benefite Liability [Member]	'	'	'
Before Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	-967	519	791
Effect on other comprehensive income	906	-1,487	-272
Accumulated other comprehensive income, end of period	-62	-967	519
Income Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	339	-182	-277
Effect on other comprehensive income	-317	520	95
Accumulated other comprehensive income, end of period	22	339	-182
Net [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	-629	337	514
Other Comprehensive Income (Loss), Net of Tax	589	-966	-177
Accumulated other comprehensive income, end of period	-40	-629	337
Accumulated Unrealized Gains on Investments, net [Member]	'	'	'
Before Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	46,892	53,817	36,884
Effect on other comprehensive income	-21,254	-6,926	16,934
Other comprehensive income before reclassification	-15,227	17,129	25,532
Accumulated other comprehensive income, end of period	25,638	46,892	53,817
Income Tax [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	-16,412	-18,836	-12,909
Other comprehensive income before reclassification	5,330	-5,995	-8,936
Effect on other comprehensive income	7,439	2,424	-5,927
Accumulated other comprehensive income, end of period	-8,973	-16,412	-18,836
Net [Abstract]	'	'	'
Accumulated other comprehensive income, beginning of period	30,480	34,981	23,974
Other comprehensive income before reclassification	-9,898	11,134	16,596
Other Comprehensive Income (Loss), Net of Tax	-13,815	-4,502	11,007
Accumulated other comprehensive income, end of period	16,665	30,480	34,981
Reclassification Adjustment for Other-than-Temporary Impairment [Member]	'	'	'
Before Tax [Abstract]	'	'	'
Reclassicification adjustment	1,468	1,393	1,447
Income Tax [Abstract]	'	'	'
Reclassicification adjustment	-514	-487	-506
Net [Abstract]	'	'	'
Reclassicification adjustment	954	905	940
Accumulated Unrealized Gains on Investments, Net [Member]	'	'	'
Before Tax [Abstract]	'	'	'
Effect on other comprehensive income	-21,254	-6,926	16,934
Reclassicification adjustment	-7,495	-25,447	-10,045
Income Tax [Abstract]	'	'	'
Reclassicification adjustment	2,623	8,907	3,516
Effect on other comprehensive income	7,439	2,424	-5,927
Net [Abstract]	'	'	'
Reclassicification adjustment	-4,872	-16,541	-6,529
Other Comprehensive Income (Loss), Net of Tax	($13,815)	($4,502)	$11,007