HCI (HCI) 10-Q 7 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 27, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'HCI	'
Entity Registrant Name	'HCI Group, Inc.	'
Entity Central Index Key	'0001400810	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	10,988,763

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Fixed-maturity securities, available for sale, at fair value (amortized cost: $98,743 and $110,738, respectively)	$100,177	$112,151
Equity securities, available for sale, at fair value (cost: $38,856 and $17,248, respectively)	39,097	17,649
Investment in joint venture, at equity	4,478	0
Real estate investments	18,938	16,228
Total investments	162,690	146,028
Cash and cash equivalents	304,323	293,398
Accrued interest and dividends receivable	1,008	1,133
Premiums receivable	26,583	14,674
Prepaid reinsurance premiums	30,965	28,066
Income taxes receivable	1,996	0
Deferred income taxes, net	2,848	0
Deferred policy acquisition costs	20,172	14,071
Property and equipment, net	12,494	13,132
Other assets	32,545	15,814
Total assets	595,624	526,316
Liabilities and Stockholders' Equity	'	'
Losses and loss adjustment expenses	47,654	43,686
Unearned premiums	203,798	171,907
Advance premiums	10,517	4,504
Assumed reinsurance balances payable	0	4,660
Accrued expenses	11,874	4,032
Dividends payable	0	19
Income taxes payable	0	543
Deferred income taxes, net	0	2,740
Long-term debt	128,865	126,932
Other liabilities	13,343	6,772
Total liabilities	416,051	365,795
Commitments and contingencies (Note 13)	'	'
Stockholders' equity:	'	'
Preferred stock	0	0
Common stock (no par value, 40,000,000 shares authorized, 10,447,807 and 10,939,268 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively)	0	0
Additional paid-in capital	28,834	48,966
Retained income	149,710	110,441
Accumulated other comprehensive income, net of taxes	1,029	1,114
Total stockholders' equity	179,573	160,521
Total liabilities and stockholders' equity	595,624	526,316
7% Series A Cumulative Convertible Preferred Stock [Member]	'	'
Stockholders' equity:	'	'
Preferred stock	0	0
Series B Preferred Stock [Member]	'	'
Stockholders' equity:	'	'
Preferred stock	$0	$0

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Available-for-sale Debt securities, Amortized cost	$98,743	$110,738
Available-for-sale Equity securities, Amortized cost	$38,856	$17,248
Preferred stock, no par value	'	'
Preferred stock, authorized	18,100,000	18,100,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, no par value	'	'
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	10,447,807	10,939,268
Common stock, outstanding	10,447,807	10,939,268
7% Series A Cumulative Convertible Preferred Stock [Member]	'	'
Preferred stock, liquidation preference, per share	$10	$10
Preferred stock, no par value	'	'
Preferred stock, authorized	1,500,000	1,500,000
Preferred stock, issued	0	110,684
Preferred stock, outstanding	0	110,684
Series B Preferred Stock [Member]	'	'
Preferred stock, no par value	'	'
Preferred stock, authorized	400,000	400,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0

Consolidated_Statements_of_Inc

Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue	'	'	'	'
Gross premiums earned	$88,944	$81,244	$274,053	$245,743
Premiums ceded	-27,684	-28,310	-83,764	-74,923
Net premiums earned	61,260	52,934	190,289	170,820
Net investment income	1,213	380	3,753	814
Policy fee income	931	815	1,826	3,013
Net realized investment gains	3,294	31	4,465	43
Other	257	532	1,023	1,146
Total revenue	66,955	54,692	201,356	175,836
Expenses	'	'	'	'
Losses and loss adjustment expenses	21,991	14,489	58,939	47,775
Policy acquisition and other underwriting expenses	9,986	8,887	28,674	22,163
Interest expense	2,626	847	7,809	2,379
Other operating expenses	9,577	8,825	28,466	22,298
Total expenses	44,180	33,048	123,888	94,615
Income before income taxes	22,775	21,644	77,468	81,221
Income tax expense	8,723	8,266	29,366	31,221
Net income	14,052	13,378	48,102	50,000
Preferred stock dividends	'	-22	4	-88
Income available to common stockholders	$14,052	$13,356	$48,106	$49,912
Basic earnings per common share	$1.34	$1.17	$4.48	$4.46
Diluted earnings per common share	$1.23	$1.13	$4.07	$4.32
Dividends per common share	$0.28	$0.22	$0.83	$0.68

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$14,052	$13,378	$48,102	$50,000
Change in unrealized gain on investments:	'	'	'	'
Unrealized gain (loss) arising during the period	-1,542	439	4,305	-744
Call and repayment losses charged to investment income	4	3	21	21
Reclassification adjustment for net realized gains	-3,294	-31	-4,465	-43
Net change in unrealized (loss) gain	-4,832	411	-139	-766
Deferred income taxes on above change	1,864	-137	54	317
Total other comprehensive (loss) income	-2,968	274	-85	-449
Comprehensive income	$11,084	$13,652	$48,017	$49,551

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$48,102	$50,000
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Stock-based compensation	6,600	3,418
Net amortization of premiums on investments in fixed-maturity securities	654	191
Depreciation and amortization	3,682	1,482
Deferred income benefits	-5,319	-1,499
Net realized investment gains	-4,465	-43
Income from real estate investments	-44	0
Loss from joint venture	22	0
(Gain) loss on sale of real estate investment	-1	2
Foreign currency remeasurement loss	10	72
Changes in operating assets and liabilities:	'	'
Premiums and reinsurance receivable	-11,909	-13,958
Advance premiums	6,013	5,599
Prepaid reinsurance premiums	-2,899	-23,423
Accrued interest and dividends receivable	125	-197
Other assets	-13,645	-5,091
Assumed reinsurance balances payable	-4,660	-791
Deferred policy acquisition costs	-6,101	-8,840
Losses and loss adjustment expenses	3,968	2,356
Unearned premiums	31,891	33,871
Income taxes	-2,539	-7,553
Accrued expenses and other liabilities	14,396	11,024
Net cash provided by operating activities	63,881	46,620
Cash flows from investing activities:	'	'
Investment in real estate under acquisition, development, and construction arrangement	-2,608	0
Investment in joint venture	-4,500	0
Purchase of property and equipment, net	-325	-3,107
Purchase of real estate investments	-352	-666
Purchase of fixed-maturity securities	-56,229	-31,309
Purchase of equity securities	-32,608	-5,144
Proceeds from sales of fixed-maturity securities	67,519	1,749
Proceeds from calls, repayments and maturities of fixed-maturity securities	2,960	2,534
Proceeds from sales of equity securities	9,232	2,021
Proceeds from sales of real estate investments	1	0
Net cash used in investing activities	-16,910	-33,922
Cash flows from financing activities:	'	'
Proceeds from the issuance of long-term debt	0	40,250
Proceeds from the exercise of common stock options	125	0
Cash dividends paid	-9,357	-7,704
Cash dividends received under share repurchase forward contract	514	0
Repurchases of common stock	-616	-893
Repurchases of common stock under share repurchase plan	-27,815	0
Redemption of Series A preferred stock	-34	0
Debt issuance costs	-234	-1,525
Tax benefits on stock-based compensation	1,384	892
Net cash (used in) provided by financing activities	-36,033	31,020
Effect of exchange rate changes on cash	-13	-54
Net increase in cash and cash equivalents	10,925	43,664
Cash and cash equivalents at beginning of period	293,398	230,214
Cash and cash equivalents at end of period	304,323	273,878
Supplemental disclosure of cash flow information:	'	'
Cash paid for income taxes	35,836	39,335
Cash paid for interest	5,453	1,726
Non-cash investing and financing activities:	'	'
Unrealized loss on investments in available-for-sale securities, net of tax	-85	-449
Series A Preferred Stock [Member]	'	'
Non-cash investing and financing activities:	'	'
Conversion of Series A Preferred Stock to common stock	$991	$814

Consolidated_Statement_of_Stoc

Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Total	Share Repurchase Plan [Member]	Series A Preferred Stock [Member]	Common Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member]	Retained Income [Member]	Accumulated Other Comprehensive Income, Net of Tax [Member]
In Thousands, except Share data	USD ($)	USD ($)	USD ($)	USD ($)	Share Repurchase Plan [Member]	USD ($)	Share Repurchase Plan [Member]	USD ($)	USD ($)
							USD ($)
Beginning Balance at Dec. 31, 2012	$121,253	'	'	'	'	$63,875	'	$55,758	$1,620
Beginning Balance, shares at Dec. 31, 2012	'	'	241,182	10,877,537	'	'	'	'	'
Net income	50,000	'	'	'	'	'	'	50,000	'
Total other comprehensive income, net of income taxes	-449	'	'	'	'	'	'	'	-449
Conversion of preferred stock to common stock, shares	'	'	-91,263	91,263	'	'	'	'	'
Issuance of restricted stock, shares	'	'	'	564,000	'	'	'	'	'
Exercise of common stock options, shares	0	'	'	'	'	'	'	'	'
Forfeiture of restricted stock, shares	'	'	'	-29,260	'	'	'	'	'
Repurchase and retirement of common stock	-893	'	'	'	'	-893	'	'	'
Repurchase and retirement of common stock, shares	'	'	'	-26,705	'	'	'	'	'
Common stock dividends	-7,600	'	'	'	'	'	'	-7,600	'
Preferred stock dividends	-88	'	'	'	'	'	'	-88	'
Tax benefits on stock-based compensation	892	'	'	'	'	892	'	'	'
Stock-based compensation	3,418	'	'	'	'	3,418	'	'	'
Ending Balance at Sep. 30, 2013	166,533	'	'	'	'	67,292	'	98,070	1,171
Ending Balance, shares at Sep. 30, 2013	'	'	149,919	11,476,835	'	'	'	'	'
Beginning Balance at Dec. 31, 2013	160,521	'	'	'	'	48,966	'	110,441	1,114
Beginning Balance, shares at Dec. 31, 2013	'	'	110,684	10,939,268	'	'	'	'	'
Net income	48,102	'	'	'	'	'	'	48,102	'
Total other comprehensive income, net of income taxes	-85	'	'	'	'	'	'	'	-85
Conversion of preferred stock to common stock, value	'	'	'	'	'	'	'	'	'
Conversion of preferred stock to common stock, shares	'	'	-107,298	107,298	'	'	'	'	'
Issuance of restricted stock, value	'	'	'	'	'	'	'	'	'
Issuance of restricted stock, shares	'	'	'	108,720	'	'	'	'	'
Exercise of common stock options, value	125	'	'	'	'	125	'	'	'
Exercise of common stock options, shares	50,000	'	'	50,000	'	'	'	'	'
Forfeiture of restricted stock, value	'	'	'	'	'	'	'	'	'
Forfeiture of restricted stock, shares	'	'	'	-8,485	'	'	'	'	'
Repurchase and retirement of common stock	-616	-27,815	'	'	'	-616	-27,815	'	'
Repurchase and retirement of common stock, shares	'	-734,924	'	-14,070	-734,924	'	'	'	'
Redemption of Series A preferred stock	-34	'	'	'	'	-25	'	-9	'
Redemption of Series A preferred stock, shares	'	'	-3,386	'	'	'	'	'	'
Deferred taxes on debt discount	215	'	'	'	'	215	'	'	'
Common stock dividends	-8,828	'	'	'	'	'	'	-8,828	'
Preferred stock dividends	4	'	'	'	'	'	'	4	'
Tax benefits on stock-based compensation	1,384	'	'	'	'	1,384	'	'	'
Stock-based compensation	6,600	'	'	'	'	6,600	'	'	'
Ending Balance at Sep. 30, 2014	$179,573	'	'	'	'	$28,834	'	$149,710	$1,029
Ending Balance, shares at Sep. 30, 2014	'	'	'	10,447,807	'	'	'	'	'

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 1 — Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited, consolidated financial statements for HCI Group, Inc. and its subsidiaries (collectively, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information, and the Securities and Exchange Commission (“SEC”) rules for interim financial reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been omitted pursuant to such rules and regulations. However, in the opinion of management, the accompanying financial statements reflect all normal recurring adjustments necessary to present fairly the Company’s financial position as of September 30, 2014 and the results of operations and cash flows for the periods presented. The results of operations for the interim periods presented are not necessarily indicative of the results of operations to be expected for any subsequent interim period or for the fiscal year ending December 31, 2014. The accompanying unaudited consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2013 included in the Company’s Form 10-K, which was filed with the SEC on March 12, 2014.
	In preparing the interim unaudited consolidated financial statements, management was required to make certain judgments, assumptions, and estimates that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures at the financial reporting date and throughout the periods being reported upon. Certain of the estimates result from judgments that can be subjective and complex and consequently actual results may differ from these estimates.
	Material estimates that are particularly susceptible to significant change in the near term are related to the Company’s losses and loss adjustment expenses, which include amounts estimated for claims incurred but not yet reported. The Company uses various assumptions and actuarial data it believes to be reasonable under the circumstances to make these estimates. In addition, accounting policies specific to reinsurance with retrospective provisions, deferred income taxes, and stock-based compensation expense involve significant judgments and estimates material to the Company’s consolidated financial statements.
	All significant intercompany balances and transactions have been eliminated.
	Acquisition, Development and Construction Loan Arrangement
	The Company has an acquisition, development and construction loan arrangement (“ADC Arrangement”) under which it provides financing to a property developer for the acquisition, development, and construction of a retail shopping center. The Company also expects to participate in the residual profit resulting from the ultimate sale or other use of the property. Classification and accounting for the ADC Arrangement as a loan, an investment in real estate, or a joint venture is determined by the Company’s evaluation of the characteristics and the risks and rewards of the ADC Arrangement. If the Company expects to receive more than 50% of the residual profit from the ADC Arrangement and it has characteristics similar to a real estate investment, the costs of the real estate project will be capitalized and interest will be recognized in net investment income (see Note 3 — “Investments”).
	In addition, the Company considers any rights or features embedded in the ADC Arrangement that may require bifurcation and derivative accounting. Due to its participation in the expected residual profit, which is deemed a variable interest, the Company evaluates its involvements in the design and essential activities of the entity to which the Company provides financing for possible consolidation as the primary beneficiary under the Variable Interest Model prescribed by the Financial Accounting Standards Board (“FASB”).
	Any subsequent changes in terms, rights or the developer’s equity interest that may result in a reclassification or a change in the accounting treatment of the ADC Arrangement will be evaluated. The Company will continually assess the collectability of principal, accrued interest and fees.
	Investment in Joint Venture
	The Company has a 90% equity interest in a joint venture that was organized to acquire and develop land on which the joint venture partners plan to construct a retail shopping center (see Note 3 — “Investments”) for lease or for sale. The joint venture was determined to be a variable interest entity as it lacks sufficient equity to finance its activities without additional subordinated financial support. Despite having a majority equity interest, the Company does not have a controlling financial interest and, accordingly, is not required to consolidate the joint venture as its primary beneficiary under the Variable Interest Model.
	In addition, the joint venture agreement contains an embedded purchase option the Company can exercise to purchase the entire interest of the other party to the joint venture after the expiration of a restricted period. The Company determined the embedded purchase option is not required to be bifurcated and fair value accounting at each reporting date is not applicable. Due to the lack of a controlling financial interest and until the embedded purchase option becomes exercisable, the Company uses the equity method rather than consolidation to account for its investment in the joint venture.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
Recent Accounting Pronouncements	'
	Note 2 — Recent Accounting Pronouncements
	Accounting Standards Update No. 2014-15. In August 2014, the FASB issued Accounting Standards Update No. 2014-15 (“ASU 2014-15”), Presentation of Financial Statements – Going Concern (Subtopic 205-40). The purpose of this update is to provide guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. ASU 2014-15 applies to all reporting entities and is effective for the annual period ending after December 15, 2016, and for annual periods and interim periods thereafter. Early adoption is permitted. Adoption of this guidance is expected to have no effect on the Company’s consolidated financial statements.
	Accounting Standards Update No. 2014-12. In June 2014, the FASB issued Accounting Standards Update No. 2014-12 (“ASU 2014-12”), Compensation – Stock Compensation (Topic 718). ASU 2014-12 applies to all reporting entities that grant employees share-based payments in which the terms of the award provide that a performance target affecting vesting could be achieved after the requisite service period. ASU 2014-12 is effective for all entities for reporting periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in this Update either (a) prospectively to all awards granted or modified after the effective date or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Although the Company has share-based awards with performance targets, such awards do not permit vesting when a performance target is achieved after termination of an employee’s service. Adoption of this guidance had no effect on the Company’s consolidated financial statements.
	Accounting Standards Update No. 2014-09. In May 2014, the FASB issued Accounting Standards Update No. 2014-09 (“ASU 2014-09”), Revenue from Contracts with Customers (Topic 606). The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the Codification. ASU 2014-09 also amends the existing requirements for the recognition of a gain or loss on the transfer of nonfinancial assets that are not in a contract with a customer to be consistent with the guidance in this ASU. ASU 2014-09 is effective for public entities for reporting periods beginning after December 15, 2016. Early adoption is not permitted. While the guidance specifically excludes revenues from insurance contracts, investments and financial instruments from the scope of the new guidance, the guidance will be applicable to the Company’s other forms of revenue not specifically exempted from the guidance. The adoption of this guidance is not expected to have a material effect on the Company’s consolidated financial statements.

Investments

Investments	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investments	'
	Note 3 — Investments
	Available-for-Sale Securities
	The Company holds investments in fixed-maturity securities and equity securities that are classified as available-for-sale. At September 30, 2014 and December 31, 2013, the cost or amortized cost, gross unrealized gains and losses, and estimated fair value of the Company’s available-for-sale securities by security type were as follows:
			Cost or			Gross			Gross			Estimated
			Amortized			Unrealized			Unrealized			Fair
			Cost			Gain			Loss			Value
	As of September 30, 2014
	Fixed-maturity securities
	U.S. Treasury and U.S. government agencies		$	1,330		$	34		$	—		$	1,364
	Corporate bonds			17,020			16			(157	)		16,879
	Commercial mortgage-backed securities			11,163			408			(40	)		11,531
	State, municipalities, and political subdivisions			59,796			1,158			(41	)		60,913
	Redeemable preferred stock			9,434			100			(44	)		9,490
	Total			98,743			1,716			(282	)		100,177
	Equity securities			38,856			1,444			(1,203	)		39,097
	Total available-for-sale securities		$	137,599		$	3,160		$	(1,485	)	$	139,274
	As of December 31, 2013
	Fixed-maturity securities
	U.S. Treasury and U.S. government agencies		$	4,549		$	37		$	(22	)	$	4,564
	Corporate bonds			25,139			484			(219	)		25,404
	Commercial mortgage-backed securities			10,929			499			(96	)		11,332
	State, municipalities, and political subdivisions			69,715			917			(181	)		70,451
	Redeemable preferred stock			406			5			(11	)		400
	Total			110,738			1,942			(529	)		112,151
	Equity securities			17,248			920			(519	)		17,649
	Total available-for-sale securities		$	127,986		$	2,862		$	(1,048	)	$	129,800
	As of September 30, 2014 and December 31, 2013, $111 and $105, respectively, of U.S. Treasury securities relate to a statutory deposit held in trust for the Treasurer of Alabama.
	Expected maturities will differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without penalties. The scheduled contractual maturities of fixed-maturity securities as of September 30, 2014 and December 31, 2013 are as follows:
			Amortized			Estimated
			Cost			Fair Value
	As of September 30, 2014
	Available-for-sale
	Due in one year or less		$	1,518		$	1,520
	Due after one year through five years			35,153			35,313
	Due after five years through ten years			39,811			40,365
	Due after ten years			11,098			11,448
	Commercial mortgage-backed securities			11,163			11,531
			$	98,743		$	100,177
			Amortized			Estimated
			Cost			Fair Value
	As of December 31, 2013
	Available-for-sale
	Due in one year or less		$	2,366		$	2,381
	Due after one year through five years			24,829			25,145
	Due after five years through ten years			59,083			59,582
	Due after ten years			13,531			13,711
	Commercial mortgage-backed securities			10,929			11,332
			$	110,738		$	112,151
	Sales of Available-for-Sale Securities
	Proceeds received, and the gross realized gains and losses from sales of available-for-sale securities, for the three and nine months ended September 30, 2014 and 2013 were as follows:
						Gross			Gross
						Realized			Realized
			Proceeds			Gains			Losses
	Three months ended September 30, 2014
	Fixed-maturity securities		$	47,557		$	2,759		$	—
	Equity securities		$	3,302		$	623		$	(88	)
	Three months ended September 30, 2013
	Fixed-maturity securities		$	390		$	58		$	(1	)
	Equity securities		$	708		$	20		$	(46	)
	Nine months ended September 30, 2014
	Fixed-maturity securities		$	67,519		$	3,623		$	(9	)
	Equity securities		$	9,232		$	1,131		$	(280	)
	Nine months ended September 30, 2013
Fixed-maturity securities		$	1,749		$	92		$	(4	)
Equity securities		$	2,021		$	84		$	(129	)
Other-than-temporary Impairment (“OTTI”)
The Company regularly reviews its individual investment securities for OTTI. The Company considers various factors in determining whether each individual security is other-than-temporarily impaired, including:
	•		the financial condition and near-term prospects of the issuer, including any specific events that may affect its operations or earnings;
	•		the length of time and the extent to which the market value of the security has been below its cost or amortized cost;
	•		general market conditions and industry or sector specific factors;
	•		nonpayment by the issuer of its contractually obligated interest and principal payments; and
	•		the Company’s intent and ability to hold the investment for a period of time sufficient to allow for the recovery of costs.
Securities with gross unrealized loss positions at September 30, 2014 and December 31, 2013, aggregated by investment category and length of time the individual securities have been in a continuous loss position, are as follows:
		Less Than Twelve						Twelve Months or					Total
		Months						Greater
		Gross			Estimated			Gross			Estimated		Gross			Estimated
		Unrealized			Fair			Unrealized			Fair		Unrealized			Fair
As of September 30, 2014		Loss			Value			Loss			Value		Loss			Value
Fixed-maturity securities
Corporate bonds		$	(151	)	$	11,164		$	(6	)	$	1,224	$	(157	)	$	12,388
Commercial mortgage-backed securities			(5	)		283			(35	)		1,377		(40	)		1,660
State, municipalities, and political subdivisions			(15	)		4,085			(26	)		196		(41	)		4,281
Redeemable preferred stock			(44	)		5,239			—			—		(44	)		5,239
Total fixed-maturity securities			(215	)		20,771			(67	)		2,797		(282	)		23,568
Equity securities			(980	)		19,385			(223	)		1,728		(1,203	)		21,113
Total available-for-sale securities		$	(1,195	)	$	40,156		$	(290	)	$	4,525	$	(1,485	)	$	44,681
		Less Than Twelve						Twelve Months or					Total
		Months						Greater
		Gross			Estimated			Gross			Estimated		Gross			Estimated
		Unrealized			Fair			Unrealized			Fair		Unrealized			Fair
As of December 31, 2013		Loss			Value			Loss			Value		Loss			Value
Fixed-maturity securities
U.S. Treasury and U.S. government agencies		$	(22	)	$	3,291		$	—		$	—	$	(22	)	$	3,291
Corporate bonds			(212	)		9,502			(7	)		230		(219	)		9,732
Commercial mortgage-backed securities			(96	)		2,179			—			—		(96	)		2,179
State, municipalities, and political subdivisions			(181	)		20,233			—			—		(181	)		20,233
Redeemable preferred stock			(11	)		239			—			—		(11	)		239
Total fixed-maturity securities			(522	)		35,444			(7	)		230		(529	)		35,674
Equity securities			(273	)		10,742			(246	)		1,069		(519	)		11,811
Total available-for-sale securities		$	(795	)	$	46,186		$	(253	)	$	1,299	$	(1,048	)	$	47,485
The Company believes there are no fundamental issues such as credit losses or other factors with respect to any of its available-for-sale securities. The unrealized losses on investments in fixed-maturity securities were caused primarily by interest-rate changes. It is expected that the securities will not be settled at a price less than the par value of the investments. In determining whether equity securities are other-than-temporarily impaired, the Company considers its intent and ability to hold a security for a period of time sufficient to allow for the recovery of cost. Because the declines in fair value are attributable to changes in interest rates or market conditions and not credit quality, and because the Company has the ability and intent to hold its available-for-sale investments until a market price recovery or maturity, the Company does not consider any of its investments to be other-than-temporarily impaired at September 30, 2014.
Investment in Joint Venture
In September 2014, Melbourne FMA, LLC (“Melbourne FMA”), a wholly owned subsidiary, entered into a joint venture agreement with FMKT Sponsor, LLC (“FMKT Sponsor”) to organize FMKT Mel JV, LLC (“FMJV”), a Florida limited liability company. Melbourne FMA and FMKT Sponsor contributed $4,500 and $500, respectively, in cash for equity interests of 90% and 10%, respectively, in FMJV. The joint venture will acquire and develop land on which the joint venture partners plan to construct a retail shopping center for lease or for sale in Melbourne, Florida. FMJV is deemed a variable interest entity (“VIE”) due to its lack of sufficient equity to finance its operations without direct or indirect additional financial support from parties to the joint venture. Although Melbourne FMA holds a majority interest in FMJV, certain major economic decisions specified in the agreement are not under Melbourne FMA’s control. As a result, Melbourne FMA is not the primary beneficiary and is not required to consolidate FMJV.
In addition, FMJV is contractually required to engage affiliates of FMKT Sponsor to manage and develop the project, and also operate the property while the joint venture agreement is in effect. The agreement includes FMKT Sponsor’s right of sale and first offer as well as an embedded option under which Melbourne FMA can purchase the entire interest of FMKT Sponsor. Under the right of sale and first offer, Melbourne FMA can either choose to purchase the interest of FMKT Sponsor in the developed property or approve the sale of the developed property to a third party buyer. Either party can initiate these provisions after the expiration of a restricted period.
There were no distributions during the three and nine months ended September 30, 2014. At September 30, 2014, the Company’s maximum exposure to loss relating to the VIE was $4,478 representing the carrying value of the investment. At September 30, 2014, an undistributed $22 loss from equity method investees was included in consolidated retained income. The following tables provide summarized operating results and the financial position of FMJV:
		Three and Nine Months
		Ended September 30, 2014
		(Unaudited)
Operating results:
Revenue		$	—
Operating expenses			25
Net loss		$	(25	)
Melbourne FMA’s share of net loss*		$	22
*	Included in other operating expenses in the Company’s consolidated statements of income.
		September 30,
		2014
		(Unaudited)
Balance Sheet:
Construction in progress - real estate		$	3,220
Cash			1,880
Total assets		$	5,100
Other liabilities			125
Members’ capital			4,975
Total liabilities and members’ capital		$	5,100
Investment in joint venture, at equity		$	4,478
Real Estate Investments
Real estate investments consist of the following as of September 30, 2014 and December 31, 2013:
		September 30,			December 31,
		2014			2013
Land		$	11,476		$	11,299
Land improvements			1,399			1,351
Buildings			3,097			3,022
Other			1,317			1,262
Total, at cost			17,289			16,934
Less: accumulated depreciation and amortization			(1,003	)		(706	)
Real estate, net			16,286			16,228
ADC Arrangement classified as real estate investment			2,652			—
Real estate investments		$	18,938		$	16,228
Depreciation and amortization expense related to real estate investments was $100 and $99, respectively, for the three months ended September 30, 2014 and 2013 and $298 and $290, respectively, for the nine months ended September 30, 2014 and 2013.
ADC Arrangement
In June 2014, the Company’s wholly owned subsidiary, Greenleaf Capital, LLC, entered into an ADC Arrangement under which it agreed to provide financing up to a maximum of $9,785 for the acquisition, development and construction of a retail shopping center and appurtenant facilities. Greenleaf Capital has an option to purchase the property when the construction project is completed contingent upon tenant rental commitments for at least 90% of rentable space being secured by the developer. The purchase price is calculated at maturity of the loan using a predetermined capitalization rate and the projected net operating income of the developed property. The loan has an initial term of 24 months and can be extended for an additional 12 months if the purchase option is not exercised by Greenleaf Capital. Prepayment is not permitted while the ADC Arrangement is in effect. The loan bears a fixed annual interest rate of 6% due monthly in arrears. The loan agreement is secured by a) a first mortgage on the land and improvements, b) assignment of all leases, rents, issues, and profits from the land and improvements, and c) personal guarantees.
Under this ADC Arrangement, Greenleaf Capital will provide substantially all necessary funds to complete the development and Greenleaf Capital will receive the entire residual profit of the developed property if it exercises the purchase option. The developer may make multiple draws on the credit facility as the construction progresses. Based on the characteristics of this ADC Arrangement which are similar to those of an investment, combined with the expected residual profit being greater than 50%, the arrangement is accounted for and reported in the balance sheet as a real estate investment. All project costs associated with the ADC Arrangement are capitalized. The loan commitment fee received by Greenleaf Capital is deferred and recognized in investment income on a straight-line basis over the term of the loan agreement.
Because of the purchase option and the substantial financial support provided by Greenleaf Capital, the developer who has no equity interest in the property is a VIE. However, Greenleaf Capital’s involvement is solely as the lender on the mortgage loan with protective rights as the lender. Greenleaf Capital does not have power to direct the activities that most significantly impact economic performance of the VIE. As a result, Greenleaf Capital is not the primary beneficiary and is not required to consolidate the VIE. At September 30, 2014, the Company’s maximum exposure to loss relating to the VIE was $2,652 representing the carrying value of the ADC Arrangement.
In addition, Greenleaf Capital determined that the option to purchase the entire developed property is not a derivative financial instrument pursuant to U.S. GAAP. As such, the embedded feature is not required to be bifurcated and the fair value accounting for the embedded feature at each reporting date is not applicable.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Note 4 — Fair Value Measurements
	The Company records and discloses certain financial assets at their estimated fair value but does not elect the fair value option for the ADC Arrangement and its long-term debt. The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels as follows:
	Level 1    -    Unadjusted quoted prices in active markets for identical assets or liabilities.
	Level 2    -    Other inputs that are observable for the asset and liability, either directly or indirectly.
	Level 3    -    Inputs that are unobservable.
	The following table presents information about the Company’s financial assets measured at estimated fair value on a recurring basis, the estimated fair values of the real estate investment under the ADC Arrangement, and long-term debt that are reflected in the financial statements at carrying value. The table indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of September 30, 2014 and December 31, 2013:
		Fair Value Measurements Using
		(Level 1)		(Level 2)		(Level 3)		Total
	As of September 30, 2014
	Financial Assets:
	Cash and cash equivalents	$	304,323	$	—	$	—	$	304,323
	Fixed-maturity securities:
	U.S. Treasury and U.S. government agencies		656		708		—		1,364
	Corporate bonds		15,880		999		—		16,879
	Commercial mortgage-backed securities		—		11,531		—		11,531
	State, municipalities, and political subdivisions		—		60,913		—		60,913
	Redeemable preferred stock		9,490		—		—		9,490
	Total fixed-maturity securities		26,026		74,151		—		100,177
	Equity securities		39,097		—		—		39,097
	Total available-for-sale securities		65,123		74,151		—		139,274
	ADC Arrangement classified as real estate investment		—		—		2,592		2,592
	Total	$	369,446	$	74,151	$	2,592	$	446,189
	Financial Liabilities:
	Long-term debt:
	8% Senior notes	$	—	$	42,343	$	—	$	42,343
	3.875% Convertible senior notes		—		—		95,462		95,462
	Total long-term debt	$	—	$	42,343	$	95,462	$	137,805
		Fair Value Measurements Using
		(Level 1)		(Level 2)		(Level 3)		Total
	As of December 31, 2013
	Financial Assets:
	Cash and cash equivalents	$	293,398	$	—	$	—	$	293,398
	Fixed-maturity securities:
	U.S. Treasury and U.S. government agencies		3,520		1,044		—		4,564
	Corporate bonds		24,476		928		—		25,404
	Commercial mortgage-backed securities		—		11,332		—		11,332
	State, municipalities, and political subdivisions		—		70,451		—		70,451
	Redeemable preferred stock		400		—		—		400
	Total fixed-maturity securities		28,396		83,755		—		112,151
	Equity securities		17,649		—		—		17,649
	Total available-for-sale securities		46,045		83,755		—		129,800
	Total	$	339,443	$	83,755	$	—	$	423,198
	Financial Liabilities:
	Long-term debt:
	8% Senior notes	$	—	$	43,390	$	—	$	43,390
	3.875% Convertible senior notes		—		—		86,630		86,630
	Total long-term debt	$	—	$	43,390	$	86,630	$	130,020
	Valuation Methodology
	ADC Arrangement Classified as Real Estate Investment. As described in Note 3 — “Investments” under ADC Arrangement, the ADC Arrangement represents a financing agreement with a purchase option between Greenleaf Capital and a property developer. Based on the characteristics of this ADC Arrangement which are similar to those of an investment, combined with the expected residual profit being greater than 50%, the arrangement is included in real estate investments at its carrying value in the balance sheet. Projected future cash inflows at maturity are discounted using a prevailing borrowing rate to estimate its fair value that relies on Level 3 inputs.
	There were no transfers between Level 1, 2 or 3 during the three and nine months ended September 30, 2014. During the year ended December 31, 2013, $10,684 of municipal bonds was transferred into Level 2 from Level 1.

Other_Assets

Other Assets	9 Months Ended
	Sep. 30, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'
Other Assets	'
	Note 5 — Other Assets
	The following table summarizes the Company’s other assets:
		September 30,		December 31,
		2014		2013
	Benefits receivable related to retrospective reinsurance contracts	$	21,734	$	8,815
	Deferred costs related to retrospective reinsurance contracts		413		194
	Deferred offering costs on senior notes issued in 2013		3,819		4,305
	Prepaid expenses		1,722		771
	Other		4,857		1,729
	Total other assets	$	32,545	$	15,814
	In June 2014, the Company received $1,485 under the terms of one of the retrospective reinsurance contracts, which terminated May 31, 2014.

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	Note 6 — Long-Term Debt
	The following table summarizes the Company’s long-term debt:
			September 30,		December 31,
			2014		2013
	8% Senior Notes, due January 30, 2020		$	40,250	$	40,250
	3.875% Convertible Senior Notes, due March 15, 2019*			88,615		86,682
	Total long-term debt		$	128,865	$	126,932
	*	net carrying value
	For the three months ended September 30, 2014 and 2013, interest expense included the contractual interest coupon, discount amortization and amortization of allocated issuance costs aggregating $2,626 and $847, respectively, the amounts of which included non-cash interest expense of $823 and $42, respectively. For the nine months ended September 30, 2014 and 2013, interest expense of $7,809 and $2,379, respectively, included non-cash interest expense of $2,411 and $116, respectively. As of September 30, 2014, the remaining amortization period of the debt discount was 4.5 years.

Reinsurance

Reinsurance	9 Months Ended
	Sep. 30, 2014
Insurance [Abstract]	'
Reinsurance	'
	Note 7 — Reinsurance
	The Company cedes a portion of its homeowners insurance exposure to other entities under catastrophe excess of loss reinsurance and quota share treaties. The Company remains liable for claims payments in the event that any reinsurer is unable to meet its obligations under the reinsurance agreements. Failure of reinsurers to honor their obligations could result in losses to the Company. The Company evaluates the financial condition of its reinsurers and monitors concentrations of credit risk arising from similar geographic regions, activities or economic characteristics of the reinsurers to minimize its exposure to significant losses from reinsurer insolvencies. The Company contracts with a number of reinsurers to secure its annual reinsurance coverage, which generally becomes effective June 1st each year. The Company purchases reinsurance taking into consideration probable maximum losses and reinsurance market conditions.
	The impact of the catastrophe excess of loss reinsurance and quota share treaties on premiums written and earned is as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Premiums Written:
	Direct	$	86,257		$	78,140		$	307,199		$	281,912
	Assumed		(172	)		(221	)		(1,255	)		(2,297	)
	Gross written		86,085			77,919			305,944			279,615
	Ceded		(27,684	)		(28,310	)		(83,764	)		(74,923	)
	Net premiums written	$	58,401		$	49,609		$	222,180		$	204,692
	Premiums Earned:
	Direct	$	85,357		$	75,512		$	245,638		$	193,465
	Assumed		3,587			5,732			28,415			52,278
	Gross earned		88,944			81,244			274,053			245,743
	Ceded		(27,684	)		(28,310	)		(83,764	)		(74,923	)
	Net premiums earned	$	61,260		$	52,934		$	190,289		$	170,820
	During the three and nine months ended September 30, 2014 and 2013, there were no recoveries pertaining to reinsurance contracts that were deducted from losses incurred. At September 30, 2014 and December 31, 2013, prepaid reinsurance premiums related to 28 and 27 reinsurers, respectively, and there were no amounts receivable with respect to reinsurers. Thus, there were no concentrations of credit risk associated with reinsurance receivables and prepaid reinsurance premiums as of September 30, 2014 and December 31, 2013.
	Certain of the reinsurance contracts include retrospective provisions that adjust premiums, increase the amount of future coverage, or result in profit commissions in the event losses are minimal or zero. These adjustments are reflected in the statements of income as net reductions in ceded premiums of $6,512 and $5,484, respectively, for the three months ended September 30, 2014 and 2013 and $17,052 and $6,785, respectively, for the nine months ended September 30, 2014 and 2013. At September 30, 2014 and December 31, 2013, other assets included $22,147 and $9,009, respectively, and prepaid reinsurance premiums included $5,941 and $3,512, respectively, which are related to these adjustments.

Losses_and_Loss_Adjustment_Exp

Losses and Loss Adjustment Expenses	9 Months Ended
	Sep. 30, 2014
Insurance [Abstract]	'
Losses and Loss Adjustment Expenses	'
	Note 8 — Losses and Loss Adjustment Expenses
	The liability for losses and loss adjustment expenses is determined on an individual case basis for all claims reported. The liability also includes amounts for unallocated expenses, anticipated future claim development and losses incurred, but not reported.
	Activity in the liability for unpaid losses and loss adjustment expenses is summarized as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Balance, beginning of period	$	43,044		$	44,749		$	43,686		$	41,168
	Incurred related to:
	Current period		21,643			14,851			59,205			50,213
	Prior period		348			(362	)		(266	)		(2,438	)
	Total incurred		21,991			14,489			58,939			47,775
	Paid related to:
	Current period		(3,461	)		(12,628	)		(22,296	)		(25,880	)
	Prior period		(13,920	)		(3,086	)		(32,675	)		(19,539	)
	Total paid		(17,381	)		(15,714	)		(54,971	)		(45,419	)
	Balance, end of period	$	47,654		$	43,524		$	47,654		$	43,524
	The establishment of loss reserves is an inherently uncertain process and changes in loss reserve estimates are expected as such estimates are subject to the outcome of future events. Changes in estimates, or differences between estimates and amounts ultimately paid, are reflected in the operating results of the period during which such adjustments are made. During the three months ended September 30, 2014, the Company experienced unfavorable development of $348 with respect to its net unpaid losses and loss adjustment expenses established as of June 30, 2014. During the nine months ended September 30, 2014, the Company experienced favorable development of $266 with respect to its net unpaid losses and loss adjustment expenses established as of December 31, 2013. Factors attributable to this favorable development may include a lower severity of claims and reduced frequency of claims.
	The Company writes insurance in the state of Florida, which could be exposed to hurricanes or other natural catastrophes. The occurrence of a major catastrophe could have a significant effect on the Company’s monthly or quarterly results and cause a temporary disruption of the normal operations of the Company. However, the Company is unable to predict the frequency or severity of any such events that may occur in the near term or thereafter.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Note 9 — Income Taxes
	During the three months ended September 30, 2014 and 2013, the Company recorded approximately $8,723 and $8,266, respectively, of income taxes, which resulted in estimated annual effective tax rates of 38.3% and 38.2%, respectively. During the nine months ended September 30, 2014 and 2013, the Company recorded approximately $29,366 and $31,221, respectively, of income taxes, which resulted in estimated annual effective tax rates of 37.9% and 38.4%, respectively. The slight decrease in the 2014 effective tax rate was attributable to an increase related to the investment income earned on tax-exempt securities. The Company’s estimated annual effective tax rate differs from the statutory federal tax rate due to state and foreign income taxes as well as certain nondeductible and tax-exempt items. Effective October 20, 2014, the Internal Revenue Service notified the Company that the examination of the Company’s 2011 federal income tax return was completed with no change to the Company’s reported tax. In addition, as of April 18, 2014, the Florida Department of Revenue completed an audit of the state income tax returns filed for 2010, 2011, and 2012. The audit resulted in no material changes to the state income taxes originally reported.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Note 10 — Earnings Per Share
	U.S. GAAP requires the Company to use the two-class method in computing basic earnings per share since holders of the Company’s restricted stock have the right to share in dividends, if declared, equally with common stockholders. These participating securities effect the computation of both basic and diluted earnings per share during periods of net income.
	A summary of the numerator and denominator of the basic and diluted earnings per common share is presented below:
		Three Months Ended							Three Months Ended
		September 30, 2014							September 30, 2013
		Income			Shares		Per Share		Income			Shares		Per Share
		(Numerator)			(Denominator)		Amount		(Numerator)			(Denominator)		Amount
	Net income	$	14,052						$	13,378
	Less: Preferred stock dividends		—							(22	)
	Less: Income attributable to participating securities		(1,024	)						(823	)
	Basic Earnings Per Share:
	Income allocated to common stockholders		13,028			9,736	$	1.34		12,533			10,749	$	1.17
	Effect of Dilutive Securities:
	Stock options		—			133				—			164
	Convertible preferred stock		—			—				22			165
	Convertible senior notes		1,090			1,649				—			—
	Diluted Earnings Per Share:
	Income available to common stockholders and assumed conversions	$	14,118			11,518	$	1.23	$	12,555			11,078	$	1.13
		Nine Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2013
		Income			Shares		Per Share		Income			Shares		Per Share
		(Numerator)			(Denominator)		Amount		(Numerator)			(Denominator)		Amount
	Net income	$	48,102						$	50,000
	Less: Preferred stock dividends		4							(88	)
	Less: Income attributable to participating securities		(3,415	)						(2,205	)
	Basic Earnings Per Share:
	Income allocated to common stockholders		44,691			9,972	$	4.48		47,707			10,696	$	4.46
	Effect of Dilutive Securities:
	Stock options		—			139				—			162
	Convertible preferred stock		(4	)		27				88			195
	Convertible senior notes		3,242			1,649				—			—
	Diluted Earnings Per Share:
	Income available to common stockholders and assumed conversions	$	47,929			11,787	$	4.07	$	47,795			11,053	$	4.32

Stockholders_Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Stockholders' Equity	'
	Note 11 — Stockholders’ Equity
	Common Stock
	Effective March 18, 2014, the Company’s Board of Directors authorized a plan to repurchase up to $40,000 of the Company’s common shares before commissions and fees. The repurchase plan allows the Company to repurchase shares from time to time through March 31, 2015. The shares may be purchased for cash in open market purchases, block transactions and privately negotiated transactions in accordance with applicable federal securities laws. The share repurchase plan may be modified, suspended, terminated or extended by the Company any time without prior notice. During the three and nine months ended September 30, 2014, the Company repurchased and retired a total of 246,578 and 734,924 shares, respectively, at a weighted average price per share of $40.56 and $37.83, respectively, under this authorized repurchase plan. The total costs of shares repurchased, inclusive of fees and commissions, during the three and nine months ended September 30, 2014 were $10,005, or $40.58 per share, and $27,815, or $37.85 per share, respectively. At September 30, 2014, a total of $12,200 is available in connection with this plan.
	On October 16, 2014, the Company’s Board of Directors declared a quarterly dividend of $0.275 per common share. The dividends are payable on December 19, 2014 to stockholders of record on November 21, 2014.
	Preferred Stock
	On February 4, 2014, the Company announced its Board of Directors fixed April 1, 2014 as the cancellation date for the conversion rights on its 7% Series A cumulative convertible preferred stock. The Company later extended the conversion privilege in April 2014. On June 2, 2014, 3,386 shares of Series A Preferred were redeemed at $10 per share. During the nine months ended September 30, 2014, holders of 107,298 shares of Series A Preferred converted their Series A Preferred shares to 107,298 shares of common stock, respectively. As of September 30, 2014, no shares of Series A Preferred were outstanding.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	Note 12 — Stock-Based Compensation
	Incentive Plans
	The Company currently has outstanding stock options and restricted stock granted under the 2007 Stock Option and Incentive Plan and the 2012 Omnibus Incentive Plan. Only the 2012 Plan is available for future grants. At September 30, 2014, there were 4,244,115 shares available for grant under the 2012 Plan.
	Stock Options
	Stock options granted and outstanding under the incentive plans vest over periods ranging from immediately vested to five years and are exercisable over the contractual term of ten years.
	A summary of the stock option activity for the three and nine months ended September 30, 2014 and 2013 is as follows (option amounts not in thousands):
		Number of			Weighted			Weighted		Aggregate
		Options			Average			Average		Intrinsic
					Exercise			Remaining		Value
					Price			Contractual
								Term
	Outstanding at January 1, 2014		280,000		$	2.91			3.9 years	$	14,166
	Exercised		(50,000	)	$	2.5
	Outstanding at March 31, 2014		230,000		$	3			3.8 years	$	7,683
	Outstanding at June 30, 2014		230,000		$	3			3.5 years	$	8,649
	Outstanding at September 30, 2014		230,000		$	3			3.3 years	$	7,589
	Exercisable at September 30, 2014		230,000		$	3			3.3 years	$	7,589
	Outstanding at January 1, 2013		280,000		$	2.91			4.9 years	$	5,007
	Outstanding at March 31, 2013		280,000		$	2.91			4.7 years	$	6,816
	Outstanding at June 30, 2013		280,000		$	2.91			4.4 years	$	7,788
	Outstanding at September 30, 2013		280,000		$	2.91			4.2 years	$	10,621
	Exercisable at September 30, 2013		270,000		$	2.78			4.0 years	$	10,276
	There were no options exercised during the three months ended September 30, 2014 and 2013. The following table summarizes information about options exercised during the nine months ended September 30, 2014 and 2013 (option amounts not in thousands):
		Nine Months Ended
		September 30,
		2014			2013
	Options exercised		50,000			—
	Total intrinsic value of exercised options	$	1,970			—
	Fair value of vested stock options	$	17		$	17
	Tax benefits realized	$	603			—
	The Company recognized compensation expense related to stock options, which is included in other operating expenses, of approximately $0 and $5, respectively, for the three months ended September 30, 2014 and 2013 and $6 and $14, respectively, for the nine months ended September 30, 2014 and 2013. At September 30, 2014, there was no unrecognized compensation expense related to stock options. Deferred tax benefits related to stock options for the three and nine months ended September 30, 2014 and 2013 were immaterial.
	Restricted Stock Awards
	From time to time, the Company has granted and may grant restricted stock awards to certain executive officers, other employees and nonemployee directors in connection with their service to the Company. The terms of the Company’s outstanding restricted stock grants may include service, performance and market-based conditions. The fair value of the awards with market-based conditions is determined using a Monte Carlo simulation method, which calculates many potential outcomes for an award and then establishes fair value based on the most likely outcome. The determination of fair value with respect to the awards with only performance or service-based conditions is based on the market value of the Company’s common stock on the grant date.
	Information with respect to the activity of unvested restricted stock awards during the three and nine months ended September 30, 2014 and 2013 is as follows (share amounts not in thousands):
		Number of			Weighted
		Restricted			Average
		Stock			Grant Date
		Awards			Fair Value
	Nonvested at January 1, 2014		735,650		$	25.48
	Granted		98,720		$	48.42
	Vested		(21,825	)	$	21.56
	Forfeited		(505	)	$	32.2
	Nonvested at March 31, 2014		812,040		$	28.37
	Vested		(32,000	)	$	12.95
	Forfeited		(2,825	)	$	43.43
	Nonvested at June 30, 2014		777,215		$	28.95
	Granted		10,000		$	37.28
	Vested		(2,000	)	$	37.68
	Forfeited		(5,155	)	$	39.85
	Nonvested at September 30, 2014		780,060		$	28.96
	Nonvested at January 1, 2013		246,320		$	14.54
	Forfeited		(920	)	$	21.56
	Nonvested at March 31, 2013		245,400		$	14.51
	Granted		544,000		$	26.58
	Vested		(29,000	)	$	13.06
	Forfeited		(28,160	)	$	14.68
	Nonvested at June 30, 2013		732,240		$	23.53
	Granted		20,000		$	32.85
	Vested		(56,000	)	$	11.57
	Forfeited		(180	)	$	21.56
	Nonvested at September 30, 2013		696,060		$	24.75
	The Company recognized compensation expense related to restricted stock, which is included in other operating expenses, of $2,267 and $1,939, respectively, for the three months ended September 30, 2014 and 2013 and $6,594 and $3,404, respectively, for the nine months ended September 30, 2014 and 2013. At September 30, 2014 and 2013, there was approximately $11,947 and $14,078, respectively, of total unrecognized compensation expense related to nonvested restricted stock arrangements. The Company expects to recognize the remaining compensation expense over a weighted-average period of 26 months. The following table summarizes information about deferred tax benefits recognized and tax benefits realized related to restricted stock awards as well as their paid dividends, and the fair value of vested restricted stock for the three and nine months ended September 30, 2014 and 2013:
		Three Months Ended						Nine Months Ended
September 30,					September 30,
	2014			2013			2014		2013
Deferred tax benefits recognized	$	875		$	748		$	2,544	$	1,313
Tax benefits realized	$	80		$	612		$	781	$	892
Fair value of vested restricted stock	$	75		$	648		$	960	$	1,027
The following presents assumptions used in a Monte Carlo simulation model to determine the fair value of the awards with market-based conditions:
	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2014		2013	2014		2013
Expected dividends per share	$1.10		$0.90	$1.10		$0.90
Expected volatility	42.1 – 42.6%		41.5 – 48.7%	42.1 – 42.6%		41.5 – 51.6%
Risk-free interest rate	0.1 – 1.5%		0.0 – 1.1%	0.1 – 1.5%		0.0 – 1.1%
Estimated cost of capital	11.50%		9.90%	11.50%		9.3 – 9.9%
Expected life (in years)	4		4	4		4.00 – 6.00

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Note 13 — Commitments and Contingencies
	Financing Commitment
	As described in Note 3 — “Investments” under ADC Arrangement, the Company is contractually committed to provide financing for a real estate acquisition, development and construction project. At September 30, 2014, $7,177 of the available commitment was unused by the property developer.
	Premium Tax
	In September 2013, the Company received a notice of intent to make audit adjustments from the Florida Department of Revenue in connection with the Department’s audit of the Company’s premium tax returns for the three-year period ended December 31, 2012. The auditor’s proposed adjustments primarily relate to the disallowance of the entire amount of $1,754 in Florida salary credits applicable to that period. The proposed adjustment, which includes interest through September 10, 2013, approximates $1,913. Management has held discussions with the FDR staff and continues working with the Department to resolve this matter. The Company is confident in the merits of its position in claiming the Florida salary credits and intends to vigorously defend its position. As such, and based on the current status and expected final resolution, the Company has no amount accrued as of September 30, 2014 related to this contingency.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Note 14 — Related Party Transactions
	Claddaugh Casualty Insurance Company, Ltd. (“Claddaugh”), the Company’s Bermuda domiciled captive reinsurer has reinsurance treaties with Oxbridge Reinsurance Limited (“Oxbridge”) whereby a portion of the business assumed from the Company’s insurance subsidiary, Homeowners Choice Property & Casualty Insurance Company, Inc. (“HCPCI”), is ceded by Claddaugh to Oxbridge. With respect to the period from June 1, 2013 through May 31, 2014, Oxbridge assumed $10,100 of the total covered exposure for approximately $4,900 in premiums. With respect to the period from June 1, 2014 through May 31, 2015, Oxbridge assumed $17,800 of the total covered exposure for approximately $4,935 in premiums. In addition, HCPCI has a reinsurance treaty with Oxbridge for the period from June 1, 2014 through May 31, 2015 under which Oxbridge assumed $9,000 of the total covered exposure for approximately $1,350 in premiums. The premiums charged by Oxbridge are at rates which management believes to be competitive with market rates available to Claddaugh. Oxbridge has deposited funds into trust accounts to satisfy certain collateral requirements under its reinsurance contracts with HCPCI and Claddaugh. Trust assets may be withdrawn by the trust beneficiary, which is either HCPCI or Claddaugh, in the event amounts are due under the Oxbridge reinsurance agreements. Among the Oxbridge shareholders are Paresh Patel, the Company’s chief executive officer, who is also chairman of the board of directors for Oxbridge, and members of his immediate family and three of the Company’s non-employee directors including Sanjay Madhu who serves as Oxbridge’s president and chief executive officer.
	Prior to June 1, 2014, Claddaugh also had one reinsurance treaty with Moksha Re SPC Ltd. and multiple capital partners whereby a portion of the business assumed from HCPCI was ceded by Claddaugh to Moksha. With respect to the period from June 1, 2013 through May 31, 2014, Moksha assumed approximately $15,400 of the total covered exposure for approximately $4,300 in premiums, a rate which management believes to be competitive with market rates available to Claddaugh. The $4,300 premium was fully paid by Claddaugh on June 27, 2013. Moksha deposited funds into a trust account to satisfy certain collateral requirements under its reinsurance contract with Claddaugh. This contract also contained retrospective provisions resulting in a profit commission of $1,485, which was received by the Company in June 2014. Among the Moksha capital partner participants are the Company’s chief executive officer, Paresh Patel, and certain of his immediate family members and Sanjay Madhu, one of the Company’s non-employee directors. This agreement terminated effective May 31, 2014 and has not been renewed.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited, consolidated financial statements for HCI Group, Inc. and its subsidiaries (collectively, the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information, and the Securities and Exchange Commission (“SEC”) rules for interim financial reporting. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been omitted pursuant to such rules and regulations. However, in the opinion of management, the accompanying financial statements reflect all normal recurring adjustments necessary to present fairly the Company’s financial position as of September 30, 2014 and the results of operations and cash flows for the periods presented. The results of operations for the interim periods presented are not necessarily indicative of the results of operations to be expected for any subsequent interim period or for the fiscal year ending December 31, 2014. The accompanying unaudited consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2013 included in the Company’s Form 10-K, which was filed with the SEC on March 12, 2014.
	In preparing the interim unaudited consolidated financial statements, management was required to make certain judgments, assumptions, and estimates that affect the reported amounts of assets, liabilities, revenues, expenses and related disclosures at the financial reporting date and throughout the periods being reported upon. Certain of the estimates result from judgments that can be subjective and complex and consequently actual results may differ from these estimates.
	Material estimates that are particularly susceptible to significant change in the near term are related to the Company’s losses and loss adjustment expenses, which include amounts estimated for claims incurred but not yet reported. The Company uses various assumptions and actuarial data it believes to be reasonable under the circumstances to make these estimates. In addition, accounting policies specific to reinsurance with retrospective provisions, deferred income taxes, and stock-based compensation expense involve significant judgments and estimates material to the Company’s consolidated financial statements.
	All significant intercompany balances and transactions have been eliminated.
Acquisition, Development and Construction Loan Arrangement	'
	Acquisition, Development and Construction Loan Arrangement
	The Company has an acquisition, development and construction loan arrangement (“ADC Arrangement”) under which it provides financing to a property developer for the acquisition, development, and construction of a retail shopping center. The Company also expects to participate in the residual profit resulting from the ultimate sale or other use of the property. Classification and accounting for the ADC Arrangement as a loan, an investment in real estate, or a joint venture is determined by the Company’s evaluation of the characteristics and the risks and rewards of the ADC Arrangement. If the Company expects to receive more than 50% of the residual profit from the ADC Arrangement and it has characteristics similar to a real estate investment, the costs of the real estate project will be capitalized and interest will be recognized in net investment income (see Note 3 — “Investments”).
	In addition, the Company considers any rights or features embedded in the ADC Arrangement that may require bifurcation and derivative accounting. Due to its participation in the expected residual profit, which is deemed a variable interest, the Company evaluates its involvements in the design and essential activities of the entity to which the Company provides financing for possible consolidation as the primary beneficiary under the Variable Interest Model prescribed by the Financial Accounting Standards Board (“FASB”).
	Any subsequent changes in terms, rights or the developer’s equity interest that may result in a reclassification or a change in the accounting treatment of the ADC Arrangement will be evaluated. The Company will continually assess the collectability of principal, accrued interest and fees.
Investment in Joint Venture	'
	Investment in Joint Venture
	The Company has a 90% equity interest in a joint venture that was organized to acquire and develop land on which the joint venture partners plan to construct a retail shopping center (see Note 3 — “Investments”) for lease or for sale. The joint venture was determined to be a variable interest entity as it lacks sufficient equity to finance its activities without additional subordinated financial support. Despite having a majority equity interest, the Company does not have a controlling financial interest and, accordingly, is not required to consolidate the joint venture as its primary beneficiary under the Variable Interest Model.
	In addition, the joint venture agreement contains an embedded purchase option the Company can exercise to purchase the entire interest of the other party to the joint venture after the expiration of a restricted period. The Company determined the embedded purchase option is not required to be bifurcated and fair value accounting at each reporting date is not applicable. Due to the lack of a controlling financial interest and until the embedded purchase option becomes exercisable, the Company uses the equity method rather than consolidation to account for its investment in the joint venture.

Investments_Tables

Investments (Tables)	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value of Available-for-Sale Securities	'
	At September 30, 2014 and December 31, 2013, the cost or amortized cost, gross unrealized gains and losses, and estimated fair value of the Company’s available-for-sale securities by security type were as follows:
			Cost or			Gross			Gross			Estimated
			Amortized			Unrealized			Unrealized			Fair
			Cost			Gain			Loss			Value
	As of September 30, 2014
	Fixed-maturity securities
	U.S. Treasury and U.S. government agencies		$	1,330		$	34		$	—		$	1,364
	Corporate bonds			17,020			16			(157	)		16,879
	Commercial mortgage-backed securities			11,163			408			(40	)		11,531
	State, municipalities, and political subdivisions			59,796			1,158			(41	)		60,913
	Redeemable preferred stock			9,434			100			(44	)		9,490
	Total			98,743			1,716			(282	)		100,177
	Equity securities			38,856			1,444			(1,203	)		39,097
	Total available-for-sale securities		$	137,599		$	3,160		$	(1,485	)	$	139,274
	As of December 31, 2013
	Fixed-maturity securities
	U.S. Treasury and U.S. government agencies		$	4,549		$	37		$	(22	)	$	4,564
	Corporate bonds			25,139			484			(219	)		25,404
	Commercial mortgage-backed securities			10,929			499			(96	)		11,332
	State, municipalities, and political subdivisions			69,715			917			(181	)		70,451
	Redeemable preferred stock			406			5			(11	)		400
	Total			110,738			1,942			(529	)		112,151
	Equity securities			17,248			920			(519	)		17,649
	Total available-for-sale securities		$	127,986		$	2,862		$	(1,048	)	$	129,800
Scheduled Contractual Maturities of Fixed-Maturity Securities	'
	The scheduled contractual maturities of fixed-maturity securities as of September 30, 2014 and December 31, 2013 are as follows:
			Amortized			Estimated
			Cost			Fair Value
	As of September 30, 2014
	Available-for-sale
	Due in one year or less		$	1,518		$	1,520
	Due after one year through five years			35,153			35,313
	Due after five years through ten years			39,811			40,365
	Due after ten years			11,098			11,448
	Commercial mortgage-backed securities			11,163			11,531
			$	98,743		$	100,177
			Amortized			Estimated
			Cost			Fair Value
	As of December 31, 2013
	Available-for-sale
	Due in one year or less		$	2,366		$	2,381
	Due after one year through five years			24,829			25,145
	Due after five years through ten years			59,083			59,582
	Due after ten years			13,531			13,711
	Commercial mortgage-backed securities			10,929			11,332
			$	110,738		$	112,151
Summary of Proceeds Received and Gross Realized Gains and Losses from Sales of Available for Sale Securities	'
	Proceeds received, and the gross realized gains and losses from sales of available-for-sale securities, for the three and nine months ended September 30, 2014 and 2013 were as follows:
						Gross			Gross
						Realized			Realized
			Proceeds			Gains			Losses
	Three months ended September 30, 2014
	Fixed-maturity securities		$	47,557		$	2,759		$	—
	Equity securities		$	3,302		$	623		$	(88	)
	Three months ended September 30, 2013
	Fixed-maturity securities		$	390		$	58		$	(1	)
	Equity securities		$	708		$	20		$	(46	)
	Nine months ended September 30, 2014
	Fixed-maturity securities		$	67,519		$	3,623		$	(9	)
	Equity securities		$	9,232		$	1,131		$	(280	)
	Nine months ended September 30, 2013
	Fixed-maturity securities		$	1,749		$	92		$	(4	)
	Equity securities		$	2,021		$	84		$	(129	)
Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category	'
	Securities with gross unrealized loss positions at September 30, 2014 and December 31, 2013, aggregated by investment category and length of time the individual securities have been in a continuous loss position, are as follows:
			Less Than Twelve						Twelve Months or					Total
			Months						Greater
			Gross			Estimated			Gross			Estimated		Gross			Estimated
			Unrealized			Fair			Unrealized			Fair		Unrealized			Fair
	As of September 30, 2014		Loss			Value			Loss			Value		Loss			Value
	Fixed-maturity securities
	Corporate bonds		$	(151	)	$	11,164		$	(6	)	$	1,224	$	(157	)	$	12,388
	Commercial mortgage-backed securities			(5	)		283			(35	)		1,377		(40	)		1,660
	State, municipalities, and political subdivisions			(15	)		4,085			(26	)		196		(41	)		4,281
	Redeemable preferred stock			(44	)		5,239			—			—		(44	)		5,239
	Total fixed-maturity securities			(215	)		20,771			(67	)		2,797		(282	)		23,568
	Equity securities			(980	)		19,385			(223	)		1,728		(1,203	)		21,113
	Total available-for-sale securities		$	(1,195	)	$	40,156		$	(290	)	$	4,525	$	(1,485	)	$	44,681
			Less Than Twelve						Twelve Months or					Total
			Months						Greater
			Gross			Estimated			Gross			Estimated		Gross			Estimated
			Unrealized			Fair			Unrealized			Fair		Unrealized			Fair
	As of December 31, 2013		Loss			Value			Loss			Value		Loss			Value
	Fixed-maturity securities
	U.S. Treasury and U.S. government agencies		$	(22	)	$	3,291		$	—		$	—	$	(22	)	$	3,291
	Corporate bonds			(212	)		9,502			(7	)		230		(219	)		9,732
	Commercial mortgage-backed securities			(96	)		2,179			—			—		(96	)		2,179
	State, municipalities, and political subdivisions			(181	)		20,233			—			—		(181	)		20,233
	Redeemable preferred stock			(11	)		239			—			—		(11	)		239
	Total fixed-maturity securities			(522	)		35,444			(7	)		230		(529	)		35,674
	Equity securities			(273	)		10,742			(246	)		1,069		(519	)		11,811
	Total available-for-sale securities		$	(795	)	$	46,186		$	(253	)	$	1,299	$	(1,048	)	$	47,485
Summary of Operating Results and Financial Position	'
	The following tables provide summarized operating results and the financial position of FMJV:
			Three and Nine Months
			Ended September 30, 2014
			(Unaudited)
	Operating results:
	Revenue		$	—
	Operating expenses			25
	Net loss		$	(25	)
	Melbourne FMA’s share of net loss*		$	22
	*	Included in other operating expenses in the Company’s consolidated statements of income.
			September 30,
			2014
			(Unaudited)
	Balance Sheet:
	Construction in progress - real estate		$	3,220
	Cash			1,880
	Total assets		$	5,100
	Other liabilities			125
	Members’ capital			4,975
	Total liabilities and members’ capital		$	5,100
	Investment in joint venture, at equity		$	4,478
Summary of Real Estate Investment	'
	Real estate investments consist of the following as of September 30, 2014 and December 31, 2013:
			September 30,			December 31,
			2014			2013
	Land		$	11,476		$	11,299
	Land improvements			1,399			1,351
	Buildings			3,097			3,022
	Other			1,317			1,262
	Total, at cost			17,289			16,934
	Less: accumulated depreciation and amortization			(1,003	)		(706	)
	Real estate, net			16,286			16,228
	ADC Arrangement classified as real estate investment			2,652			—
	Real estate investments		$	18,938		$	16,228

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Available-for-Sale Securities Measured at Fair Value	'
	The table indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of September 30, 2014 and December 31, 2013:
		Fair Value Measurements Using
		(Level 1)		(Level 2)		(Level 3)		Total
	As of September 30, 2014
	Financial Assets:
	Cash and cash equivalents	$	304,323	$	—	$	—	$	304,323
	Fixed-maturity securities:
	U.S. Treasury and U.S. government agencies		656		708		—		1,364
	Corporate bonds		15,880		999		—		16,879
	Commercial mortgage-backed securities		—		11,531		—		11,531
	State, municipalities, and political subdivisions		—		60,913		—		60,913
	Redeemable preferred stock		9,490		—		—		9,490
	Total fixed-maturity securities		26,026		74,151		—		100,177
	Equity securities		39,097		—		—		39,097
	Total available-for-sale securities		65,123		74,151		—		139,274
	ADC Arrangement classified as real estate investment		—		—		2,592		2,592
	Total	$	369,446	$	74,151	$	2,592	$	446,189
	Financial Liabilities:
	Long-term debt:
	8% Senior notes	$	—	$	42,343	$	—	$	42,343
	3.875% Convertible senior notes		—		—		95,462		95,462
	Total long-term debt	$	—	$	42,343	$	95,462	$	137,805
		Fair Value Measurements Using
		(Level 1)		(Level 2)		(Level 3)		Total
	As of December 31, 2013
	Financial Assets:
	Cash and cash equivalents	$	293,398	$	—	$	—	$	293,398
	Fixed-maturity securities:
	U.S. Treasury and U.S. government agencies		3,520		1,044		—		4,564
	Corporate bonds		24,476		928		—		25,404
	Commercial mortgage-backed securities		—		11,332		—		11,332
	State, municipalities, and political subdivisions		—		70,451		—		70,451
	Redeemable preferred stock		400		—		—		400
	Total fixed-maturity securities		28,396		83,755		—		112,151
	Equity securities		17,649		—		—		17,649
	Total available-for-sale securities		46,045		83,755		—		129,800
	Total	$	339,443	$	83,755	$	—	$	423,198
	Financial Liabilities:
	Long-term debt:
	8% Senior notes	$	—	$	43,390	$	—	$	43,390
	3.875% Convertible senior notes		—		—		86,630		86,630
	Total long-term debt	$	—	$	43,390	$	86,630	$	130,020

Other_Assets_Tables

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'
Summary of Other Assets	'
	The following table summarizes the Company’s other assets:
		September 30,		December 31,
		2014		2013
	Benefits receivable related to retrospective reinsurance contracts	$	21,734	$	8,815
	Deferred costs related to retrospective reinsurance contracts		413		194
	Deferred offering costs on senior notes issued in 2013		3,819		4,305
	Prepaid expenses		1,722		771
	Other		4,857		1,729
	Total other assets	$	32,545	$	15,814

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Summary of Long-term Debt	'
	The following table summarizes the Company’s long-term debt:
			September 30,		December 31,
			2014		2013
	8% Senior Notes, due January 30, 2020		$	40,250	$	40,250
	3.875% Convertible Senior Notes, due March 15, 2019*			88,615		86,682
	Total long-term debt		$	128,865	$	126,932
	*	net carrying value

Reinsurance_Tables

Reinsurance (Tables)	9 Months Ended
	Sep. 30, 2014
Insurance [Abstract]	'
Impact of Catastrophe Excess of Loss Reinsurance and Quota Share Treaties on Premiums Written and Earned	'
	The impact of the catastrophe excess of loss reinsurance and quota share treaties on premiums written and earned is as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Premiums Written:
	Direct	$	86,257		$	78,140		$	307,199		$	281,912
	Assumed		(172	)		(221	)		(1,255	)		(2,297	)
	Gross written		86,085			77,919			305,944			279,615
	Ceded		(27,684	)		(28,310	)		(83,764	)		(74,923	)
	Net premiums written	$	58,401		$	49,609		$	222,180		$	204,692
	Premiums Earned:
	Direct	$	85,357		$	75,512		$	245,638		$	193,465
	Assumed		3,587			5,732			28,415			52,278
	Gross earned		88,944			81,244			274,053			245,743
	Ceded		(27,684	)		(28,310	)		(83,764	)		(74,923	)
	Net premiums earned	$	61,260		$	52,934		$	190,289		$	170,820

Losses_and_Loss_Adjustment_Exp1

Losses and Loss Adjustment Expenses (Tables)	9 Months Ended
	Sep. 30, 2014
Insurance [Abstract]	'
Liability for Unpaid Losses and Loss Adjustment Expenses	'
	Activity in the liability for unpaid losses and loss adjustment expenses is summarized as follows:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Balance, beginning of period	$	43,044		$	44,749		$	43,686		$	41,168
	Incurred related to:
	Current period		21,643			14,851			59,205			50,213
	Prior period		348			(362	)		(266	)		(2,438	)
	Total incurred		21,991			14,489			58,939			47,775
	Paid related to:
	Current period		(3,461	)		(12,628	)		(22,296	)		(25,880	)
	Prior period		(13,920	)		(3,086	)		(32,675	)		(19,539	)
	Total paid		(17,381	)		(15,714	)		(54,971	)		(45,419	)
	Balance, end of period	$	47,654		$	43,524		$	47,654		$	43,524

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Summary of Numerator and Denominator of Basic and Diluted Earnings Per Common Share	'
	A summary of the numerator and denominator of the basic and diluted earnings per common share is presented below:
		Three Months Ended							Three Months Ended
		September 30, 2014							September 30, 2013
		Income			Shares		Per Share		Income			Shares		Per Share
		(Numerator)			(Denominator)		Amount		(Numerator)			(Denominator)		Amount
	Net income	$	14,052						$	13,378
	Less: Preferred stock dividends		—							(22	)
	Less: Income attributable to participating securities		(1,024	)						(823	)
	Basic Earnings Per Share:
	Income allocated to common stockholders		13,028			9,736	$	1.34		12,533			10,749	$	1.17
	Effect of Dilutive Securities:
	Stock options		—			133				—			164
	Convertible preferred stock		—			—				22			165
	Convertible senior notes		1,090			1,649				—			—
	Diluted Earnings Per Share:
	Income available to common stockholders and assumed conversions	$	14,118			11,518	$	1.23	$	12,555			11,078	$	1.13
		Nine Months Ended							Nine Months Ended
		September 30, 2014							September 30, 2013
		Income			Shares		Per Share		Income			Shares		Per Share
		(Numerator)			(Denominator)		Amount		(Numerator)			(Denominator)		Amount
	Net income	$	48,102						$	50,000
	Less: Preferred stock dividends		4							(88	)
	Less: Income attributable to participating securities		(3,415	)						(2,205	)
	Basic Earnings Per Share:
	Income allocated to common stockholders		44,691			9,972	$	4.48		47,707			10,696	$	4.46
	Effect of Dilutive Securities:
	Stock options		—			139				—			162
	Convertible preferred stock		(4	)		27				88			195
	Convertible senior notes		3,242			1,649				—			—
	Diluted Earnings Per Share:
	Income available to common stockholders and assumed conversions	$	47,929			11,787	$	4.07	$	47,795			11,053	$	4.32

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Summary of Company's Stock Option Plan Activity	'
	A summary of the stock option activity for the three and nine months ended September 30, 2014 and 2013 is as follows (option amounts not in thousands):
		Number of			Weighted			Weighted		Aggregate
		Options			Average			Average		Intrinsic
					Exercise			Remaining		Value
					Price			Contractual
								Term
	Outstanding at January 1, 2014		280,000		$	2.91			3.9 years	$	14,166
	Exercised		(50,000	)	$	2.5
	Outstanding at March 31, 2014		230,000		$	3			3.8 years	$	7,683
	Outstanding at June 30, 2014		230,000		$	3			3.5 years	$	8,649
	Outstanding at September 30, 2014		230,000		$	3			3.3 years	$	7,589
	Exercisable at September 30, 2014		230,000		$	3			3.3 years	$	7,589
	Outstanding at January 1, 2013		280,000		$	2.91			4.9 years	$	5,007
	Outstanding at March 31, 2013		280,000		$	2.91			4.7 years	$	6,816
	Outstanding at June 30, 2013		280,000		$	2.91			4.4 years	$	7,788
	Outstanding at September 30, 2013		280,000		$	2.91			4.2 years	$	10,621
	Exercisable at September 30, 2013		270,000		$	2.78			4.0 years	$	10,276
Information about Options Exercised	'
	The following table summarizes information about options exercised during the nine months ended September 30, 2014 and 2013 (option amounts not in thousands):
		Nine Months Ended
		September 30,
		2014			2013
	Options exercised		50,000			—
	Total intrinsic value of exercised options	$	1,970			—
	Fair value of vested stock options	$	17		$	17
	Tax benefits realized	$	603			—
Information with Respect to Unvested Restricted Stock Awards Stock Option and Incentive Plan	'
	Information with respect to the activity of unvested restricted stock awards during the three and nine months ended September 30, 2014 and 2013 is as follows (share amounts not in thousands):
		Number of			Weighted
		Restricted			Average
		Stock			Grant Date
		Awards			Fair Value
	Nonvested at January 1, 2014		735,650		$	25.48
	Granted		98,720		$	48.42
	Vested		(21,825	)	$	21.56
	Forfeited		(505	)	$	32.2
	Nonvested at March 31, 2014		812,040		$	28.37
	Vested		(32,000	)	$	12.95
	Forfeited		(2,825	)	$	43.43
	Nonvested at June 30, 2014		777,215		$	28.95
	Granted		10,000		$	37.28
	Vested		(2,000	)	$	37.68
	Forfeited		(5,155	)	$	39.85
	Nonvested at September 30, 2014		780,060		$	28.96
	Nonvested at January 1, 2013		246,320		$	14.54
	Forfeited		(920	)	$	21.56
	Nonvested at March 31, 2013		245,400		$	14.51
	Granted		544,000		$	26.58
	Vested		(29,000	)	$	13.06
	Forfeited		(28,160	)	$	14.68
	Nonvested at June 30, 2013		732,240		$	23.53
	Granted		20,000		$	32.85
	Vested		(56,000	)	$	11.57
	Forfeited		(180	)	$	21.56
	Nonvested at September 30, 2013		696,060		$	24.75
Information about Deferred Tax Benefits Recognized Related to Restricted Stock Awards, Paid Dividends and the Fair Value of Vested Restricted Stock	'
	The following table summarizes information about deferred tax benefits recognized and tax benefits realized related to restricted stock awards as well as their paid dividends, and the fair value of vested restricted stock for the three and nine months ended September 30, 2014 and 2013:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014		2013
	Deferred tax benefits recognized	$	875		$	748		$	2,544	$	1,313
	Tax benefits realized	$	80		$	612		$	781	$	892
	Fair value of vested restricted stock	$	75		$	648		$	960	$	1,027
Assumptions Used to Determine the Fair Value of the Awards with Market-Based	'
	The following presents assumptions used in a Monte Carlo simulation model to determine the fair value of the awards with market-based conditions:
		Three Months Ended			Nine Months Ended
		September 30,			September 30,
		2014		2013	2014		2013
	Expected dividends per share	$1.10		$0.90	$1.10		$0.90
	Expected volatility	42.1 – 42.6%		41.5 – 48.7%	42.1 – 42.6%		41.5 – 51.6%
	Risk-free interest rate	0.1 – 1.5%		0.0 – 1.1%	0.1 – 1.5%		0.0 – 1.1%
	Estimated cost of capital	11.50%		9.90%	11.50%		9.3 – 9.9%
	Expected life (in years)	4		4	4		4.00 – 6.00

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
Summary Of Significant Accounting Policies [Line Items]	'
ADC Arrangement	'The Company has an acquisition, development and construction loan arrangement (bADC Arrangementb) under which it provides financing to a property developer for the acquisition, development, and construction of a retail shopping center. The Company also expects to participate in the residual profit resulting from the ultimate sale or other use of the property. Classification and accounting for the ADC Arrangement as a loan, an investment in real estate, or joint venture is determined by the Companybs evaluation of the characteristics and the risks and rewards of the ADC Arrangement. If the Company expects to receive more than 50% of the residual profit from the ADC arrangement and it has characteristics similar to a real estate investment, the costs of the real estate project will be capitalized and interest will be recognized in net investment income
Percentage of investment in unconsolidated entities	90.00%
Investment in Joint Venture [Member]	'
Summary Of Significant Accounting Policies [Line Items]	'
Percentage of investment in unconsolidated entities	90.00%

Investments_Summary_of_Amortiz

Investments - Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value of Available-for-Sale Securities (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	$98,743	$110,738
Equity securities, Gross Unrealized Gain	3,160	2,862
Equity securities, Cost or Amortized Cost	38,856	17,248
Equity securities, Gross Unrealized Loss	-1,485	-1,048
Total available-for-sale securities, Cost or Amortized Cost	137,599	127,986
Debt securities	100,177	112,151
Equity securities, Estimated Fair Value	39,097	17,649
Total available-for-sale securities	139,274	129,800
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Equity securities, Gross Unrealized Gain	1,444	920
Equity securities, Cost or Amortized Cost	38,856	17,248
Equity securities, Gross Unrealized Loss	-1,203	-519
Equity securities, Estimated Fair Value	39,097	17,649
Fixed-Maturity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	98,743	110,738
Equity securities, Gross Unrealized Gain	1,716	1,942
Equity securities, Gross Unrealized Loss	-282	-529
Debt securities	100,177	112,151
Fixed-Maturity Securities [Member] | U.S. Treasury and U.S. Government Agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	1,330	4,549
Equity securities, Gross Unrealized Gain	34	37
Equity securities, Gross Unrealized Loss	'	-22
Debt securities	1,364	4,564
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	17,020	25,139
Equity securities, Gross Unrealized Gain	16	484
Equity securities, Gross Unrealized Loss	-157	-219
Debt securities	16,879	25,404
Fixed-Maturity Securities [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	11,163	10,929
Equity securities, Gross Unrealized Gain	408	499
Equity securities, Gross Unrealized Loss	-40	-96
Debt securities	11,531	11,332
Fixed-Maturity Securities [Member] | State, Municipalities, and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	59,796	69,715
Equity securities, Gross Unrealized Gain	1,158	917
Equity securities, Gross Unrealized Loss	-41	-181
Debt securities	60,913	70,451
Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Cost or Amortized Cost	9,434	406
Equity securities, Gross Unrealized Gain	100	5
Equity securities, Gross Unrealized Loss	-44	-11
Debt securities	$9,490	$400

Investments_Additional_Informa

Investments - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

6 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

6 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Dec. 31, 2013

Minimum [Member]

Maximum [Member]

Fmkt [Member]

Real Estate Investment [Member]

Real Estate Investment [Member]

Real Estate Investment [Member]

Real Estate Investment [Member]

ADC Arrangement [Member]

ADC Arrangement [Member]

U.S. Treasury and U.S. Government Agencies [Member]

U.S. Treasury and U.S. Government Agencies [Member]

Schedule of Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Statutory deposit held in trust with Treasurer of Alabama

'

'

'

'

'

'

'

'

'

'

'

'

'

$111

$105

Equity interest percentage

'

90.00%

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

Cash contribution

'

4,500

0

'

'

'

500

'

'

'

'

'

'

'

'

Distribution

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum exposure loss relating to VIE

4,478

4,478

'

'

'

'

'

'

'

'

'

'

'

'

'

Undistributed loss from equity investment method

'

-22

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation and amortization expenses under real estate investments

'

'

'

'

'

'

'

100

99

298

290

'

'

'

'

Maximum Amount of Loan Receivable

'

'

'

$9,785

'

'

'

'

'

'

'

'

'

'

'

Percentage of rentable space secured

'

'

'

'

'

'

'

'

'

'

'

90.00%

'

'

'

Term of Loan Receivable

'

'

'

'

'24 months

'36 months

'

'

'

'

'

'

'

'

'

Interest Rate on Loan Receivable

'

'

'

'

'

'

'

'

'

'

'

6.00%

'

'

'

ADC Arrangement

'

'The Company has an acquisition, development and construction loan arrangement (bADC Arrangementb) under which it provides financing to a property developer for the acquisition, development, and construction of a retail shopping center. The Company also expects to participate in the residual profit resulting from the ultimate sale or other use of the property. Classification and accounting for the ADC Arrangement as a loan, an investment in real estate, or joint venture is determined by the Companybs evaluation of the characteristics and the risks and rewards of the ADC Arrangement. If the Company expects to receive more than 50% of the residual profit from the ADC arrangement and it has characteristics similar to a real estate investment, the costs of the real estate project will be capitalized and interest will be recognized in net investment income

'

'

'

'

'

'

'

'

'

'

'Based on the characteristics of this ADC Arrangement which are similar to those of an investment, combined with the expected residual profit being greater than 50%, the arrangement is accounted for and reported in the balance sheet as a real estate investment

'

'

Investments_Scheduled_Contract

Investments - Scheduled Contractual Maturities of Fixed-Maturity Securities (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available-for-sale	'	'
Due in one year or less, Amortized Cost	$1,518	$2,366
Due after one year through five years, Amortized Cost	35,153	24,829
Due after five years through ten years, Amortized Cost	39,811	59,083
Due after ten years, Amortized Cost	11,098	13,531
Commercial mortgage-backed securities, Amortized Cost	11,163	10,929
Amortized Cost Total	98,743	110,738
Due in one year or less, Fair Value	1,520	2,381
Due after one year through five years, Fair Value	35,313	25,145
Due after five years through ten years, Fair Value	40,365	59,582
Due after ten years, Fair Value	11,448	13,711
Commercial mortgage-backed securities, Fair Value	11,531	11,332
Fair Value Total	$100,177	$112,151

Investments_Summary_of_Proceed

Investments - Summary of Proceeds Received and Gross Realized Gains and Losses from Sales of Available for Sale Securities (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fixed-Maturity Securities [Member]	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'
Proceeds	$47,557	$390	$67,519	$1,749
Gross Realized Gains	2,759	58	3,623	92
Gross Realized Losses	'	-1	-9	-4
Equity Securities [Member]	'	'	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'
Proceeds	3,302	708	9,232	2,021
Gross Realized Gains	623	20	1,131	84
Gross Realized Losses	($88)	($46)	($280)	($129)

Investments_Summary_of_Securit

Investments - Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	($1,195)	($795)
Fair Value, Less than Twelve Months	40,156	46,186
Gross Unrealized Loss, Twelve Months or Greater	-290	-253
Fair Value, Twelve Months or Greater	4,525	1,299
Gross Unrealized Loss, Total	-1,485	-1,048
Fair Value, Total	44,681	47,485
Fixed-Maturity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-215	-522
Fair Value, Less than Twelve Months	20,771	35,444
Gross Unrealized Loss, Twelve Months or Greater	-67	-7
Fair Value, Twelve Months or Greater	2,797	230
Gross Unrealized Loss, Total	-282	-529
Fair Value, Total	23,568	35,674
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-151	-212
Fair Value, Less than Twelve Months	11,164	9,502
Gross Unrealized Loss, Twelve Months or Greater	-6	-7
Fair Value, Twelve Months or Greater	1,224	230
Gross Unrealized Loss, Total	-157	-219
Fair Value, Total	12,388	9,732
Fixed-Maturity Securities [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-5	-96
Fair Value, Less than Twelve Months	283	2,179
Gross Unrealized Loss, Twelve Months or Greater	-35	'
Fair Value, Twelve Months or Greater	1,377	'
Gross Unrealized Loss, Total	-40	-96
Fair Value, Total	1,660	2,179
Fixed-Maturity Securities [Member] | State, Municipalities, and Political Subdivisions [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-15	-181
Fair Value, Less than Twelve Months	4,085	20,233
Gross Unrealized Loss, Twelve Months or Greater	-26	'
Fair Value, Twelve Months or Greater	196	'
Gross Unrealized Loss, Total	-41	-181
Fair Value, Total	4,281	20,233
Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-44	-11
Fair Value, Less than Twelve Months	5,239	239
Gross Unrealized Loss, Total	-44	-11
Fair Value, Total	5,239	239
Fixed-Maturity Securities [Member] | U.S. Treasury and U.S. Government Agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	'	-22
Fair Value, Less than Twelve Months	'	3,291
Gross Unrealized Loss, Total	'	-22
Fair Value, Total	'	3,291
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Gross Unrealized Loss, Less than Twelve Months	-980	-273
Fair Value, Less than Twelve Months	19,385	10,742
Gross Unrealized Loss, Twelve Months or Greater	-223	-246
Fair Value, Twelve Months or Greater	1,728	1,069
Gross Unrealized Loss, Total	-1,203	-519
Fair Value, Total	$21,113	$11,811

Investments_Summary_of_Operati

Investments - Summary of Operating Results and Financial Position (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Operating results:	'	'	'	'	'
Operating expenses	$44,180	$33,048	$123,888	$94,615	'
Net loss	'	'	-22	0	'
Balance Sheet:	'	'	'	'	'
Other liabilities	13,343	'	13,343	'	6,772
Total liabilities and stockholders' equity	595,624	'	595,624	'	526,316
Investment in joint venture, at equity	4,478	'	4,478	'	0
Variable Interest Entity, Not Primary Beneficiary [Member]	'	'	'	'	'
Operating results:	'	'	'	'	'
Revenue	0	'	'	'	'
Operating expenses	25	'	25	'	'
Net loss	-25	'	-25	'	'
Balance Sheet:	'	'	'	'	'
Construction in progress-real estate	3,220	'	3,220	'	'
Cash	1,880	'	1,880	'	'
Total assets	5,100	'	5,100	'	'
Other liabilities	125	'	125	'	'
Members' capital	4,975	'	4,975	'	'
Total liabilities and stockholders' equity	5,100	'	5,100	'	'
Melbourne FMA [Member] | Operating Expense [Member]	'	'	'	'	'
Operating results:	'	'	'	'	'
Net loss	$22	'	$22	'	'

Investments_Summary_of_Real_Es

Investments - Summary of Real Estate Investment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Real Estate [Abstract]	'	'
Land	$11,476	$11,299
Land improvements	1,399	1,351
Buildings	3,097	3,022
Other	1,317	1,262
Total, at cost	17,289	16,934
Less: accumulated depreciation and amortization	-1,003	-706
Real estate, net	16,286	16,228
ADC Arrangement classified as real estate investment	2,652	'
Real estate investments	$18,938	$16,228

Fair_Value_Measurements_Availa

Fair Value Measurements - Available-for-Sale Securities Measured at Fair Value (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial Assets:	'	'
Total fixed-maturity securities	$100,177	$112,151
Equity securities	39,097	17,649
Total available-for-sale securities	139,274	129,800
ADC Arrangement classified as real estate investment	2,652	'
(Level 1) [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	304,323	293,398
Total available-for-sale securities	65,123	46,045
Total financial assets	369,446	339,443
(Level 2) [Member]	'	'
Financial Assets:	'	'
Total available-for-sale securities	74,151	83,755
Total financial assets	74,151	83,755
Financial Liabilities:	'	'
Total long-term debt	42,343	43,390
(Level 2) [Member] | Senior Notes [Member]	'	'
Financial Liabilities:	'	'
Total long-term debt	42,343	43,390
(Level 3) [Member]	'	'
Financial Assets:	'	'
ADC Arrangement classified as real estate investment	2,592	'
Total financial assets	2,592	'
Financial Liabilities:	'	'
Total long-term debt	95,462	86,630
(Level 3) [Member] | Convertible Senior Notes [Member]	'	'
Financial Liabilities:	'	'
Total long-term debt	95,462	86,630
Fixed-Maturity Securities [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	100,177	112,151
Fixed-Maturity Securities [Member] | (Level 1) [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	26,026	28,396
Fixed-Maturity Securities [Member] | (Level 1) [Member] | U.S. Treasury and U.S. Government Agencies [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	656	3,520
Fixed-Maturity Securities [Member] | (Level 1) [Member] | Corporate Bonds [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	15,880	24,476
Fixed-Maturity Securities [Member] | (Level 1) [Member] | Redeemable Preferred Stock [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	9,490	400
Fixed-Maturity Securities [Member] | (Level 2) [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	74,151	83,755
Fixed-Maturity Securities [Member] | (Level 2) [Member] | U.S. Treasury and U.S. Government Agencies [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	708	1,044
Fixed-Maturity Securities [Member] | (Level 2) [Member] | Corporate Bonds [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	999	928
Fixed-Maturity Securities [Member] | (Level 2) [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	11,531	11,332
Fixed-Maturity Securities [Member] | (Level 2) [Member] | State, Municipalities, and Political Subdivisions [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	60,913	70,451
Equity Securities [Member] | (Level 1) [Member]	'	'
Financial Assets:	'	'
Equity securities	39,097	17,649
Fair Value, Measurements, Recurring [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	304,323	293,398
Total available-for-sale securities	139,274	129,800
ADC Arrangement classified as real estate investment	2,592	'
Total financial assets	446,189	423,198
Financial Liabilities:	'	'
Total long-term debt	137,805	130,020
Fair Value, Measurements, Recurring [Member] | Senior Notes [Member]	'	'
Financial Liabilities:	'	'
Total long-term debt	42,343	43,390
Fair Value, Measurements, Recurring [Member] | Convertible Senior Notes [Member]	'	'
Financial Liabilities:	'	'
Total long-term debt	95,462	86,630
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	100,177	112,151
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member] | U.S. Treasury and U.S. Government Agencies [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	1,364	4,564
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member] | Corporate Bonds [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	16,879	25,404
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member] | Commercial Mortgage-Backed Securities [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	11,531	11,332
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member] | State, Municipalities, and Political Subdivisions [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	60,913	70,451
Fair Value, Measurements, Recurring [Member] | Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]	'	'
Financial Assets:	'	'
Total fixed-maturity securities	9,490	400
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]	'	'
Financial Assets:	'	'
Equity securities	$39,097	$17,649

Fair_Value_Measurements_Availa1

Fair Value Measurements - Available-for-Sale Securities Measured at Fair Value (Parenthetical) (Detail)	Sep. 30, 2014	Dec. 31, 2013
Senior Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fixed annual rate of interest	8.00%	'
Convertible Senior Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Debt instrument stated interest rate	3.88%	'
Fair Value, Measurements, Recurring [Member] | Senior Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fixed annual rate of interest	8.00%	8.00%
Fair Value, Measurements, Recurring [Member] | Convertible Senior Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Debt instrument stated interest rate	3.88%	3.88%

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]	'	'	'
Fair value transfer level 2 from level 1	'	'	$10,684
Fair value transfers between Level 1, 2 or 3	$0	$0	'

Other_Assets_Summary_of_Other_

Other Assets - Summary of Other Assets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'	'
Benefits receivable related to retrospective reinsurance contracts	$21,734	$8,815
Deferred costs related to retrospective reinsurance contracts	413	194
Deferred offering costs on senior notes issued in 2013	3,819	4,305
Prepaid expenses	1,722	771
Other	4,857	1,729
Total other assets	$32,545	$15,814

Other_Assets_Additional_Inform

Other Assets - Additional Information (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'
Amount received from retrospective reinsurance contracts	$1,485

LongTerm_Debt_Summary_of_LongT

Long-Term Debt - Summary of Long-Term Debt (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total long-term debt	$128,865	$126,932
Senior Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Total long-term debt	40,250	40,250
Convertible Senior Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Total long-term debt	$88,615	$86,682

LongTerm_Debt_Summary_of_LongT1

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2014
Senior Notes [Member]	'
Debt Instrument [Line Items]	'
Fixed annual rate of interest	8.00%
Debt instrument, maturity date	30-Jan-20
Convertible Senior Notes [Member]	'
Debt Instrument [Line Items]	'
Debt instrument stated interest rate	3.88%
Debt instrument, maturity date	15-Mar-19

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Long-term Debt, Unclassified [Abstract]	'	'	'	'
Interest expense on debt	$2,626	$847	$7,809	$2,379
Non-cash interest expense	$823	$42	$2,411	$116
Debt discount, remaining amortization period	'	'	'4 years 6 months	'

Reinsurance_Impact_of_Catastro

Reinsurance - Impact of Catastrophe Excess of Loss Reinsurance and Quota Share Treaties on Premiums Written and Earned (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Premiums Written:	'	'	'	'
Direct	$86,257	$78,140	$307,199	$281,912
Assumed	-172	-221	-1,255	-2,297
Gross written	86,085	77,919	305,944	279,615
Gross written	86,085	77,919	305,944	279,615
Ceded	-27,684	-28,310	-83,764	-74,923
Net premiums written	58,401	49,609	222,180	204,692
Premiums Earned:	'	'	'	'
Direct	85,357	75,512	245,638	193,465
Assumed	3,587	5,732	28,415	52,278
Gross earned	88,944	81,244	274,053	245,743
Ceded	-27,684	-28,310	-83,764	-74,923
Net premiums earned	$61,260	$52,934	$190,289	$170,820

Reinsurance_Additional_Informa

Reinsurance - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'	'
Number of reinsurers	28	'	28	'	27
Reinsurance recoverable	$0	'	$0	'	$0
Credit risk associated with reinsurance receivables	0	'	0	'	0
Other assets	32,545	'	32,545	'	15,814
Prepaid reinsurance premiums	30,965	'	30,965	'	28,066
Credit Concentration Risk [Member]	'	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'	'
Recoveries pertaining to reinsurance contracts	0	0	0	0	'
Reinsurance [Member]	'	'	'	'	'
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]	'	'	'	'	'
Net reduction in ceded premiums	6,512	5,484	17,052	6,785	'
Other assets	22,147	'	22,147	'	9,009
Prepaid reinsurance premiums	$5,941	'	$5,941	'	$3,512

Losses_and_Loss_Adjustment_Exp2

Losses and Loss Adjustment Expenses - Liability for Unpaid Losses and Loss Adjustment Expenses (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]	'	'	'	'
Balance, beginning of period	$43,044	$44,749	$43,686	$41,168
Incurred related to:	'	'	'	'
Current period	21,643	14,851	59,205	50,213
Prior period	348	-362	-266	-2,438
Total incurred	21,991	14,489	58,939	47,775
Paid related to:	'	'	'	'
Current period	-3,461	-12,628	-22,296	-25,880
Prior period	-13,920	-3,086	-32,675	-19,539
Total paid	-17,381	-15,714	-54,971	-45,419
Balance, end of period	$47,654	$43,524	$47,654	$43,524

Losses_and_Loss_Adjustment_Exp3

Losses and Loss Adjustment Expenses - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reserves For Losses And Loss Adjustment Expenses [Line Items]	'	'	'	'
Unpaid claims and claim adjustment expenses overall development	($348)	$362	$266	$2,438
Unfavorable Development [Member]	'	'	'	'
Reserves For Losses And Loss Adjustment Expenses [Line Items]	'	'	'	'
Unpaid claims and claim adjustment expenses overall development	($348)	'	'	'

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Income tax expense	$8,723	$8,266	$29,366	$31,221
Estimated effective tax rates	38.30%	38.20%	37.90%	38.40%

Earnings_Per_Share_Summary_of_

Earnings Per Share - Summary of Numerator and Denominator of Basic and Diluted Earnings Per Common Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'	'	'	'
Net income	$14,052	$13,378	$48,102	$50,000
Less: Preferred stock dividends	'	-22	4	-88
Less: Income attributable to participating securities	-1,024	-823	-3,415	-2,205
Basic Earnings Per Share:	'	'	'	'
Income allocated to common stockholders, Income (Numerator)	13,028	12,533	44,691	47,707
Income allocated to common stockholders, Shares (Denominator)	9,736	10,749	9,972	10,696
Income allocated to common stockholders, Per Share Amount	$1.34	$1.17	$4.48	$4.46
Diluted Earnings Per Share:	'	'	'	'
Income available to common stockholders and assumed conversions, Income (Numerator)	14,118	12,555	47,929	47,795
Income available to common stockholders and assumed conversions, Shares (Denominator)	11,518	11,078	11,787	11,053
Income available to common stockholders and assumed conversions, Per Share Amount	$1.23	$1.13	$4.07	$4.32
Convertible Senior Notes [Member]	'	'	'	'
Effect of Dilutive Securities:	'	'	'	'
Dilutive Securities, Income (Numerator)	1,090	'	3,242	'
Dilutive Securities, Shares (Denominator)	1,649	'	1,649	'
Convertible Preferred Stock [Member]	'	'	'	'
Effect of Dilutive Securities:	'	'	'	'
Dilutive Securities, Income (Numerator)	'	$22	($4)	$88
Dilutive Securities, Shares (Denominator)	'	165	27	195
Stock Options [Member]	'	'	'	'
Effect of Dilutive Securities:	'	'	'	'
Dilutive Securities, Shares (Denominator)	133	164	139	162

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Oct. 16, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2014

Mar. 18, 2014

Sep. 30, 2014

Jun. 02, 2014

Feb. 04, 2014

Sep. 30, 2014

Sep. 30, 2013

Jun. 02, 2014

Subsequent Event [Member]

Common Stock [Member]

Common Stock [Member]

Share Repurchase Plan [Member]

Share Repurchase Plan [Member]

Share Repurchase Plan [Member]

Share Repurchase Plan [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Series A Preferred Stock [Member]

Common Stock [Member]

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock repurchase authorized amount

'

'

'

'

'

'

'

'

'

'

$40,000,000

'

'

'

'

'

'

Time through the company is allowed to repurchase shares

'

'

'

'

'

'

'

'

'

31-Mar-15

'

'

'

'

'

'

'

Common stock repurchased and retired, shares

'

'

'

'

'

'

14,070

26,705

246,578

734,924

'

734,924

'

'

'

'

'

Common stock repurchased and retired, weighted average price

'

'

'

'

'

'

'

'

$40.56

$37.83

'

'

'

'

'

'

'

Stock repurchased and retired, total costs

'

'

616,000

893,000

'

'

'

'

10,005,000

27,815,000

'

'

'

'

'

'

'

Fees and commissions average price repurchase common stock

'

'

'

'

'

'

'

'

$40.58

$37.85

'

'

'

'

'

'

'

Stock repurchase program available repurchase amount

'

'

'

'

'

'

'

'

$12,200,000

$12,200,000

'

'

'

'

'

'

'

Dividends per common share declared

$0.28

$0.22

$0.83

$0.68

'

$0.28

'

'

'

'

'

'

'

'

'

'

'

Date of dividend payable

'

'

'

'

'

19-Dec-14

'

'

'

'

'

'

'

'

'

'

'

Record date of dividend payable

'

'

'

'

'

21-Nov-14

'

'

'

'

'

'

'

'

'

'

'

Preferred stock conversion cancellation date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Apr-14

'

'

Preferred stock Dividends rate

'

'

'

'

'

'

'

'

'

'

'

'

'

7.00%

'

'

'

Shares of Series A Preferred redeemed

'

'

'

'

'

'

'

'

'

'

'

'

3,386

'

-3,386

'

'

Shares of Series A Preferred redeemed, per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$10

Conversion of preferred stock to common stock, shares

'

'

'

'

'

'

107,298

91,263

'

'

'

'

'

'

-107,298

-91,263

'

Preferred stock, outstanding

0

'

0

'

0

'

'

'

'

'

'

'

'

'

0

'

'

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock Options [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Recognized compensation expenses	$0	$5	$6	$14
Unrecognized compensation expenses related to stock options	0	'	0	'
Restricted Stock [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Recognized compensation expenses	2,267	1,939	6,594	3,404
Recognition of remaining compensation expense over a weighted-average period	'26 months	'	'	'
Omnibus Incentive Plan New Plan 2012 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Common shares available for grant	4,244,115	'	4,244,115	'
Incentive Plans [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Stock option contractual term	'	'	'10 years	'
Incentive Plans [Member] | Stock Options [Member] | Maximum [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Stock options maximum vesting period	'	'	'5 years	'
Combined 2007 Plan and 2012 Plan [Member] | Restricted Stock [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Total unrecognized compensation expense, Nonvested restricted stock arrangements granted	$11,947	$14,078	$11,947	$14,078

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Company's Stock Option Plan Activity (Detail) (USD $)	3 Months Ended						9 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Outstanding Beginning, Number of Options	230,000	230,000	280,000	280,000	280,000	280,000	280,000	280,000	280,000	'
Exercised, Number of Options	'	'	-50,000	'	'	'	-50,000	0	'	'
Outstanding Ending, Number of Options	230,000	230,000	230,000	280,000	280,000	280,000	230,000	280,000	280,000	280,000
Exercisable Ending, Number of Options	230,000	'	'	270,000	'	'	230,000	270,000	'	'
Outstanding Beginning, Weighted Average Exercise price	$3	$3	$2.91	$2.91	$2.91	$2.91	$2.91	$2.91	$2.91	'
Exercised, Weighted-Average Exercise Price	'	'	$2.50	'	'	'	'	'	'	'
Outstanding Ending, Weighted-Average Exercise Price	$3	$3	$3	$2.91	$2.91	$2.91	$3	$2.91	$2.91	$2.91
Exercisable Ending , Weighted-Average Exercise Price	$3	'	'	$2.78	'	'	$3	$2.78	'	'
Outstanding, Weighted-Average Remaining Contractual Term	'3 years 3 months 18 days	'3 years 6 months	'3 years 9 months 18 days	'4 years 2 months 12 days	'4 years 2 months 12 days	'4 years 8 months 12 days	'	'	'3 years 10 months 24 days	'4 years 10 months 24 days
Exercisable Ending, Weighted-Average Remaining Contractual Term	'3 years 3 months 18 days	'	'	'4 years	'	'	'	'	'	'
Outstanding Beginning, Aggregate Intrinsic Value	$8,649	$7,683	$14,166	'	$6,816	'	$14,166	'	'	'
Outstanding Ending, Aggregate Intrinsic Value	7,589	8,649	7,683	10,621	'	6,816	7,589	10,621	14,166	'
Exercisable Ending, Aggregate Intrinsic Value	$7,589	'	'	$10,276	'	'	$7,589	$10,276	'	'

StockBased_Compensation_Inform

Stock-Based Compensation - Information about Options Exercised (Detail) (USD $)	3 Months Ended	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2014	Sep. 30, 2013
Share Based Compensation Arrangement By Share Based Payment Award Options Activity [Abstract]	'	'	'
Options exercised	50,000	50,000	0
Total intrinsic value of exercised options	'	$1,970	$0
Fair value of vested stock options	'	17	17
Tax benefits realized	'	$603	$0

Stock_Based_Compensation_Infor

Stock Based Compensation - Information with Respect to Unvested Restricted Stock Awards Stock Option and Incentive Plan (Detail) (Restricted Stock [Member], USD $)	3 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013
Restricted Stock [Member]	'	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'
Beginning balance, shares	777,215	812,040	735,650	732,240	245,400	246,320
Granted, Number of Restricted Stock Awards	10,000	'	98,720	20,000	544,000	'
Vested, Number of Restricted Stock Awards	-2,000	-32,000	-21,825	-56,000	-29,000	'
Forfeited, Number of Restricted Stock Awards	-5,155	-2,825	-505	-180	-28,160	-920
Ending balance, shares	780,060	777,215	812,040	696,060	732,240	245,400
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$28.95	$28.37	$25.48	$23.53	$14.51	$14.54
Granted, Weighted-Average Grant Date Fair Value	$37.28	'	$48.42	$32.85	$26.58	'
Vested, Weighted-Average Grant Date Fair Value	$37.68	$12.95	$21.56	$11.57	$13.06	'
Forfeited, Weighted-Average Grant Date Fair Value	$39.85	$43.43	$32.20	$21.56	$14.68	$21.56
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$28.96	$28.95	$28.37	$24.75	$23.53	$14.51

StockBased_Compensation_Inform1

Stock-Based Compensation - Information about Deferred Tax Benefits Recognized Related to Restricted Stock Awards, Paid Dividends and the Fair Value of Vested Restricted Stock (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Tax benefits realized	'	'	$603	$0
Restricted Stock [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Deferred tax benefits recognized	875	748	2,544	1,313
Tax benefits realized	80	612	781	892
Fair value of vested restricted stock	$75	$648	$960	$1,027

StockBased_Compensation_Assump

Stock-Based Compensation - Assumptions Used to Determine the Fair Value of the Awards with Market-Based (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions and Methodology [Line Items]	'	'	'	'
Expected dividends per share	$1.10	$0.90	$1.10	$0.90
Expected volatility, minimum	42.10%	41.50%	42.10%	41.50%
Expected volatility, maximum	42.60%	48.70%	42.60%	51.60%
Risk-free interest rate, minimum	0.10%	0.00%	0.10%	0.00%
Risk-free interest rate, maximum	1.50%	1.10%	1.50%	1.10%
Estimated cost of capital	11.50%	9.90%	11.50%	'
Estimated cost of capital, minimum	'	'	'	9.30%
Estimated cost of capital, maximum	'	'	'	9.90%
Expected life (in years)	'4 years	'4 years	'4 years	'
Minimum [Member]	'	'	'	'
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions and Methodology [Line Items]	'	'	'	'
Expected life (in years)	'	'	'	'4 years
Maximum [Member]	'	'	'	'
Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions and Methodology [Line Items]	'	'	'	'
Expected life (in years)	'	'	'	'6 years

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 10, 2013	Sep. 30, 2014	Mar. 31, 2014
Commitment And Contingencies [Line Items]	'	'	'
Available unused commitment	'	$7,177	'
Premium Tax [Member]	'	'	'
Commitment And Contingencies [Line Items]	'	'	'
Loss contingency amount	'	1,754	'
Proposed premium tax adjustment with interest	1,913	'	'
Accrued amount	'	'	$0
Loss contingency related to credit disallowance	'	'The auditor's proposed adjustments primarily relate to the disallowance of the entire amount of $1,754 in Florida salary credits applicable to that period.	'

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	9 Months Ended		0 Months Ended	1 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Jun. 27, 2013	Jun. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014
		Oxbridge [Member]	Moksha [Member]	Moksha [Member]	Moksha [Member]	Claddaugh [Member]	Claddaugh [Member]	Claddaugh [Member]	HCPCI [Member]
		Directors			Directors	Oxbridge [Member]	Oxbridge [Member]	Moksha [Member]	Oxbridge [Member]
						Period from June 1, 2013 through May 31, 2014 [Member]	Period from June 1, 2014 through May 31, 2015 [Member]	Period from June 1, 2013 through May 31, 2014 [Member]
Related Party Transaction [Line Items]	'	'	'	'	'	'	'	'	'
Assumed total covered exposure	'	'	'	'	'	$10,100	$17,800	$15,400	$9,000
Premiums paid	'	'	4,300	'	'	4,900	4,935	4,300	1,350
No. of non-employee directors	'	3	'	'	1	'	'	'	'
Amount received from retrospective reinsurance contracts	$1,485	'	'	$1,485	'	'	'	'	'