HCI (HCI) 10-K 7 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 27, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Trading Symbol	HCI
Entity Registrant Name	HCI Group, Inc.
Entity Central Index Key	1,400,810
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		9,458,442
Entity Public Float			$ 375,747,684

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Fixed-maturity securities, available for sale, at fair value (amortized cost: $235,830 and $167,231, respectively)	$ 237,484	$ 166,248
Equity securities, available for sale, at fair value (cost: $53,132 and $47,750, respectively)	58,911	53,035
Equity securities, trading, at fair value (cost: $953 and $0, respectively)	1,045	0
Limited partnership investments, at equity	23,184	29,263
Investment in unconsolidated joint venture, at equity	1,304	2,102
Real estate investments (Note 4 - Consolidated Variable Interest Entity)	58,358	48,086
Total investments	380,286	298,734
Cash and cash equivalents (Note 4 - Consolidated Variable Interest Entity)	255,884	280,531
Accrued interest and dividends receivable	1,983	1,654
Income taxes receivable	16,192	2,811
Premiums receivable	17,807	17,276
Prepaid reinsurance premiums	22,286	24,554
Reinsurance recoverable:
Paid losses and loss adjustment expenses	2,344
Unpaid losses and loss adjustment expenses	100,760
Deferred policy acquisition costs	16,712	16,639
Property and equipment, net	12,465	11,374
Intangible assets, net	4,995	4,899
Deferred income taxes, net		250
Other assets (Note 4 - Consolidated Variable Interest Entity)	10,550	11,342
Total assets	842,264	670,064
Liabilities and Stockholders' Equity
Losses and loss adjustment expenses	198,578	70,492
Unearned premiums	164,896	175,803
Advance premiums	4,948	4,651
Assumed reinsurance balances payable	15	3,294
Accrued expenses (Note 4 - Consolidated Variable Interest Entity)	6,035	6,513
Reinsurance recovered in advance on unpaid losses	13,885
Deferred income taxes, net	1,890
Long-term debt	237,835	138,863
Other liabilities (Note 4 - Consolidated Variable Interest Entity)	20,207	26,702
Total liabilities	648,289	426,318
Commitments and contingencies (Note 22)
Stockholders' equity:
Preferred stock
Common stock (no par value, 40,000,000 shares authorized, 8,762,416 and 9,662,761 shares issued and outstanding in 2017 and 2016, respectively)	0	0
Additional paid-in capital		8,139
Retained income	189,409	232,964
Accumulated other comprehensive income, net of taxes	4,566	2,643
Total stockholders' equity	193,975	243,746
Total liabilities and stockholders' equity (or members' capital)	842,264	670,064
7% Series A Cumulative Convertible Preferred Stock [Member]
Stockholders' equity:
Preferred stock
Series B Preferred Stock [Member]
Stockholders' equity:
Preferred stock

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Available-for-sale Debt securities, Amortized cost	$ 235,830	$ 167,231
Available-for-sale Equity securities, Amortized cost	53,132	47,750
Trading equity securities, cost	$ 953	$ 0
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	8,762,416	9,662,761
Common stock, outstanding	8,762,416	9,662,761
7% Series A Cumulative Convertible Preferred Stock [Member]
Preferred stock, no par value
Preferred stock, authorized	1,500,000	1,500,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
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 Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue
Gross premiums earned	$ 358,253	$ 378,678	$ 423,120
Premiums ceded	(133,635)	(135,051)	(140,614)
Net premiums earned	224,618	243,627	282,506
Net investment income	11,439	9,087	3,978
Net realized investment gains (losses)	4,346	2,601	(608)
Net unrealized investment gains	92
Net other-than-temporary impairment losses recognized in income:
Total other-than-temporary impairment losses	(1,116)	(2,252)	(5,275)
Portion of loss recognized in other comprehensive income, before taxes	(351)	(230)	594
Net other-than-temporary impairment losses	(1,467)	(2,482)	(4,681)
Policy fee income	3,622	3,914	3,496
Gain on repurchases of convertible senior notes		153
Gain on bargain purchase		2,071
Gain on remeasurement of previously held interest		4,005
Other	1,756	1,470	1,261
Total revenue	244,406	264,446	285,952
Expenses
Losses and loss adjustment expenses	165,629	124,667	87,224
Policy acquisition and other underwriting expenses	39,663	42,642	41,984
General and administrative personnel expenses	25,127	26,200	28,276
Interest expense	16,767	11,079	10,754
Loss on repurchases of senior notes	743
Impairment loss	38	388
Other operating expenses	12,063	12,614	11,522
Total operating expenses	260,030	217,590	179,760
(Loss) income before income taxes	(15,624)	46,856	106,192
Income tax (benefit) expense	(8,731)	17,835	40,331
Net (loss) income	$ (6,893)	$ 29,021	$ 65,861
Basic (loss) earnings per share	$ (0.75)	$ 2.95	$ 6.51
Diluted (loss) earnings per share	(0.75)	2.92	5.90
Dividends per share	$ 1.40	$ 1.20	$ 1.20

Consolidated Statements of Comp

Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378	$ (6,893)	$ 29,021	$ 65,861
Change in unrealized gain (loss) on investments:
Net unrealized gain (loss) arising during the period													5,996	7,317	(9,366)
Other-than-temporary impairment loss charged to investment income													1,467	2,482	4,681
Call and repayment losses charged to investment income													14	20	77
Reclassification adjustment for net realized (gain) loss													(4,346)	(2,601)	608
Net change in unrealized gain (loss)													3,131	7,218	(4,000)
Deferred income taxes on above change													(1,208)	(2,784)	1,543
Total other comprehensive income (loss), net of income taxes													1,923	4,434	(2,457)
Comprehensive (loss) income	$ 11,914	$ (38,792)	$ 8,959	$ 12,949	$ 2,380	$ 12,487	$ 10,742	$ 7,846	$ 11,516	$ 5,023	$ 19,856	$ 27,009	$ (4,970)	$ 33,455	$ 63,404

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Share Repurchase Plan [Member]	Common Stock [Member]	Common Stock [Member]Share Repurchase Plan [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member]Share Repurchase Plan [Member]	Retained Income [Member]	Accumulated Other Comprehensive (Loss) Income, Net of Tax [Member]
Beginning Balance at Dec. 31, 2014	$ 182,585				$ 20,465		$ 161,454	$ 666
Beginning Balance, shares at Dec. 31, 2014			10,189,128
Net income (loss)	65,861						65,861
Total other comprehensive income (loss), net of income taxes	(2,457)							(2,457)
Issuance of restricted stock	0		$ 0		0		0	0
Issuance of restricted stock, shares			83,260
Exercise of common stock options, value	$ 263				263
Exercise of common stock options, shares	120,000		120,000
Shares surrendered upon exercising common stock options			(2,013)
Forfeiture of restricted stock, value	$ 0		$ 0		0		0	0
Forfeiture of restricted stock, shares			(42,757)
Repurchase and retirement of common stock, value	(792)	$ (1,610)			(792)	$ (1,610)
Repurchase and retirement of common stock, shares			(17,493)	(37,869)
Common stock dividends	(11,681)						(11,681)
Tax benefits on stock-based compensation	2,295				2,295
Tax shortfalls on stock-based compensation	(1,954)				(1,954)
Stock-based compensation	5,212				5,212
Ending Balance at Dec. 31, 2015	237,722				23,879		215,634	(1,791)
Ending Balance, shares at Dec. 31, 2015			10,292,256
Net income (loss)	29,021						29,021
Total other comprehensive income (loss), net of income taxes	4,434							4,434
Issuance of restricted stock	0		$ 0		0		0	0
Issuance of restricted stock, shares			142,440
Exercise of common stock options, value	$ 150				150
Exercise of common stock options, shares	60,000		60,000
Forfeiture of restricted stock, value	$ 0		$ 0		0		0	0
Forfeiture of restricted stock, shares			(13,298)
Cancellation of restricted stock			(160,000)
Repurchase and retirement of common stock, value	(464)	(20,026)			(464)	(20,026)
Repurchase and retirement of common stock, shares			(14,934)	(643,703)
Common stock dividends	(11,691)						(11,691)
Tax benefits on stock-based compensation	641				641
Tax shortfalls on stock-based compensation	(239)				(239)
Stock-based compensation	4,198				4,198
Ending Balance at Dec. 31, 2016	243,746				8,139		232,964	2,643
Ending Balance, shares at Dec. 31, 2016			9,662,761
Net income (loss)	(6,893)						(6,893)
Total other comprehensive income (loss), net of income taxes	1,923							1,923
Issuance of restricted stock	0		$ 0		0		0	0
Issuance of restricted stock, shares			154,936
Exercise of common stock options, value	$ 75				75
Exercise of common stock options, shares	30,000		30,000
Forfeiture of restricted stock, value	$ 0		$ 0		0		0	0
Forfeiture of restricted stock, shares			(23,766)
Repurchase and retirement of common stock, value	(21,318)	$ (15,154)			(21,318)	$ (15,154)
Repurchase and retirement of common stock, shares			(437,240)	(433,175)
Repurchase of common stock under prepaid forward contract, value	(9,400)				(9,400)
Repurchase of common stock under prepaid forward contract, shares			(191,100)
Equity component on 4.25% convertible senior notes (net of offering costs of $543)	15,151				15,151
Deferred taxes on debt discount	(5,845)				(5,845)
Common stock dividends	(12,833)						(12,833)
Stock-based compensation	4,523				4,523
Additional paid-in capital shortfall allocated to retained income					$ 23,829		(23,829)
Ending Balance at Dec. 31, 2017	$ 193,975						$ 189,409	$ 4,566
Ending Balance, shares at Dec. 31, 2017			8,762,416

Consolidated Statements of Sto7

Consolidated Statements of Stockholders' Equity (Parenthetical) - Additional Paid-In Capital [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Stated interest rate on convertible senior notes	4.25%
Offering costs for convertible senior notes	$ 543

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net (loss) income	$ (6,893)	$ 29,021	$ 65,861
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Stock-based compensation	4,523	4,198	5,212
Net amortization of premiums on investments in fixed-maturity securities	1,252	726	855
Depreciation and amortization	9,591	5,408	5,251
Deferred income tax (benefit) expense	(4,913)	155	(1,101)
Net realized investment (gains) losses	(4,346)	(2,601)	608
Net unrealized investment gains	(92)
Other-than-temporary impairment losses	1,467	2,482	4,681
Income from real estate investment under acquisition, development and construction arrangement			(344)
Loss from unconsolidated joint venture	234		125
Distribution received from unconsolidated joint venture	147
Gain on repurchases of convertible senior notes		(153)
Gain on bargain purchase		(2,071)
Loss on repurchases of senior notes	743
Gain on remeasurement of previously held investment		(4,005)
Impairment loss	38	388
Net (income) loss from limited partnership interests	(2,334)	(1,207)	3,244
Distributions received from limited partnership interests	881	544	12
Foreign currency remeasurement (gain) loss	(60)	29	66
Other	134	18	26
Changes in operating assets and liabilities:
Accrued interest and dividends receivable	(329)	(300)	(331)
Income taxes	(13,381)	(1,192)	766
Premiums receivable	(531)	2,355	(3,807)
Prepaid reinsurance premiums	2,268	16,193	(6,651)
Reinsurance recoverable	(103,104)
Deferred policy acquisition costs	(73)	1,963	(3,588)
Other assets	574	29,054	(7,230)
Losses and loss adjustment expenses	128,086	18,802	2,782
Unearned premiums	(10,907)	(11,487)	(26,781)
Advance premiums	297	(332)	603
Assumed reinsurance balances payable	(3,279)	2,210	866
Reinsurance recovered in advance on unpaid losses	13,885
Accrued expenses and other liabilities	2,548	(2,223)	4,157
Net cash provided by operating activities	16,426	87,975	45,282
Cash flows from investing activities:
Investment in real estate under acquisition, development, and construction arrangement			(6,968)
Proceeds from investment in real estate under acquisition, development and construction arrangement		10,200
Acquisition of real estate business, net of cash acquired		(11,651)
Investments in limited partnership interests	(4,226)	(4,670)	(24,636)
Distributions received from limited partnership interests	11,758
Investment in unconsolidated joint venture		(90)	(435)
Distribution from unconsolidated joint venture	417
Purchase of property and equipment	(2,340)	(865)	(840)
Purchase of intangible assets	(637)
Purchase of real estate investments	(11,878)	(2,261)	(4,871)
Purchase of fixed-maturity securities	(114,743)	(85,530)	(98,501)
Purchase of equity securities - available for sale	(46,909)	(22,434)	(32,878)
Purchase of equity securities - trading	(3,544)
Proceeds from sales of fixed-maturity securities	31,759	40,454	53,711
Proceeds from calls, repayments and maturities of fixed-maturity securities	14,897	4,692	9,344
Proceeds from sales of equity securities - available for sale	42,657	23,127	25,695
Proceeds from sales of equity securities - trading	2,625
Proceeds from sales of real estate investments			5
Net cash used in investing activities	(80,164)	(49,028)	(80,374)
Cash flows from financing activities:
Net borrowing under revolving credit facility		1,238
Proceeds from the exercise of common stock options	75	150	263
Cash dividends paid	(13,906)	(12,438)	(12,428)
Cash dividends received under share repurchase forward contract	1,073	747	747
Proceeds from the issuance of long-term debt	143,859	18,200
Repurchases of convertible senior notes		(11,347)
Repurchases of senior notes	(40,250)
Repayment of long-term debt	(974)	(455)
Repurchases of common stock	(30,718)	(464)	(792)
Repurchases of common stock under share repurchase plan	(15,154)	(20,026)	(1,610)
Purchase of non-controlling interest		(2,064)
Debt issuance costs	(4,975)	(339)
Tax benefits on stock-based compensation		641	2,295
Net cash provided by (used in) financing activities	39,030	(26,157)	(11,525)
Effect of exchange rate changes on cash	61	3	(61)
Net (decrease) increase in cash and cash equivalents	(24,647)	12,793	(46,678)
Cash and cash equivalents at beginning of year	280,531	267,738	314,416
Cash and cash equivalents at end of year	255,884	280,531	267,738
Supplemental disclosure of cash flow information:
Cash paid for income taxes	11,506	18,857	38,371
Cash paid for interest	8,906	7,222	7,211
Non-cash investing and financing activities:
Unrealized gain (loss) on investments in available-for-sale securities, net of tax	1,923	4,434	(2,457)
Details of business acquisition:
Fair value of assets acquired		32,569
Less: Purchase price		(14,514)
Carrying value of previously held interest		(2,859)
Gain on remeasurement of previously held interest		(4,005)
Gain on bargain purchase		(2,071)
Liabilities assumed		9,120
Conversion of revolving credit facility to long-term debt	9,441
Receivable from sales of available-for-sale securities	255	350
Payable on purchases of available-for-sale securities	$ 4	$ 50	$ 1

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Note 1 — Nature of Operations HCI Group, Inc., together with its subsidiaries (“HCI” or the “Company”), is primarily engaged in the property and casualty insurance business through two Florida domiciled insurance companies, Homeowners Choice Property & Casualty Insurance Company, Inc. (“HCPCI”), its principal operating subsidiary, and TypTap Insurance Company (“TypTap”). HCPCI is authorized to underwrite various homeowners’ property and casualty insurance products and allied lines business in the state of Florida. HCPCI also offers flood-endorsed and wind-only policies to Florida customers. During 2017, HCPCI received regulatory approval to write residential property and casualty insurance in the states of Arkansas, California, Maryland, North Carolina, New Jersey, Ohio, Pennsylvania, South Carolina and Texas. HCPCI has yet to commence operations in these states. TypTap, on the other hand, primarily offers standalone flood policies to Florida homeowners. HCPCI’s and TypTap’s operations are supported by HCI Group, Inc. and certain HCI subsidiaries. In addition, HCI includes various subsidiaries predominantly engaged in the businesses of owning and leasing real estate, operating marina facilities and one restaurant, and developing software products. See Note 16 — “Segment Information.” The Company obtained a majority of its policies through participation in a “take-out

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies Basis of Presentation. Adoption of New Accounting Standards. Effective January 1, 2017, the Company adopted Accounting Standards Update No. 2016-09, In addition, The Company early adopted Accounting Standards Update No. 2017-01, Real Estate Investments Principles of Consolidation. The Company has a 100% equity interest in one venture (treated as a joint venture under U.S. GAAP) that owns a commercial property in Riverview, Florida. The Company consolidates this joint venture as its primary beneficiary (see Consolidated Variable Interest Entity Use of Estimates. Business Acquisitions. Before the adoption of Accounting Standards Update No. 2017-01, in-place in-place in-place After the adoption of the aforementioned guidance, the Company evaluates whether substantially all of the fair value of the gross assets acquired in a real estate transaction is concentrated in a single identifiable asset or group of similar identifiable assets. If such concentration is substantial, the transaction is accounted for as an asset acquisition. As a result, the cost of acquiring real estate is allocated to the individual assets based on the relative fair values of the individual assets. Acquisition related costs are capitalized and allocated among the assets acquired. Cash and Cash Equivalents. Investments in Available-for-Sale Available-for-sale available-for-sale available-for-sale first-in first-out The Company reviews all securities for other-than-temporary impairment on a monthly basis. When the fair value of any investment is lower than its cost, an assessment is made to determine whether the decline is temporary or other-than-temporary. If the decline is determined to be other-than-temporary, the investment is written down to fair value and an impairment loss is recognized in income in the period in which the Company makes such determination. When reviewing impaired fixed-maturity securities, the Company considers its ability and intent to hold these securities and whether it is probable that the Company will be required to sell these securities prior to their anticipated recovery or maturity. For the fixed-maturity securities that the Company intends to sell or it is probable that the Company will have to sell before recovery or maturity, the unrealized losses are recognized as other-than-temporary losses in income. In instances where there are credit related losses associated with the impaired fixed-maturity securities for which the Company asserts that it does not have the intent to sell, and it is probable that the Company will not be required to sell until a market price recovery or maturity, the amount of the other-than-temporary impairment loss related to credit losses is recognized in income, and the amount of the other-than-temporary impairment loss related to other non-credit When determining impairment due to a credit related loss, the Company carefully considers factors such as the issuer’s financial ratios and condition, the security’s current ratings and maturity date, and overall market conditions in estimating the cash flows expected to be collected. The expected cash flows discounted at the effective interest rate of the security implicit at the date of acquisition is then compared with the security’s amortized cost at the measurement date. A credit loss is incurred when the present value of the expected cash flows is less than the security’s amortized cost. The Company considers various factors in determining whether an individual security is other-than-temporarily impaired (see Available-for-Sale Investments in Trading Securities. Trading Securities Limited Partnership Investments. Limited Partnership Investments Pursuant to U.S. GAAP, these limited partnerships which are private equity funds must measure their investments at fair value and reflect the unrealized gains and losses in the fair value of their investments on their statement of income. As a result, the carrying value of limited partnership investments at each reporting date approximates their estimated fair value. Investment in Unconsolidated Joint Venture. When evidence indicates an impairment may occur, the Company evaluates whether a decline in value is other than temporary. Evidence may include continuing operating losses of the joint venture, a declining occupancy rate, a decrease in real estate value, and an oversupply of rental property in close vicinity to the investment property. Should available evidence indicate the recovery of the initial investment is less likely, the Company would compare the carrying value of the investment with its expected residual value and recognize an impairment loss in earnings. Real Estate Investments Prior to August 16, 2016, the Company was party to an Acquisition, Development and Construction loan agreement (“ADC Arrangement”) whereby the Company provided financing to a property developer for the construction of a retail shopping center. Because the Company expected to receive more than 50% of the residual profit from the ADC Arrangement which had characteristics similar to a real estate investment, the costs of the real estate project were capitalized and interest was recognized in net investment income. Real estate and the related depreciable assets are carried at cost, net of accumulated depreciation, which is included in net investment income and allocated over the estimated useful life of the asset using the straight-line method of depreciation. Land is not depreciated. Real estate is evaluated for impairment when events or circumstances indicate the carrying value of the real estate may not be recoverable. Deferred policy acquisition costs. The method followed in computing DAC limits the amount of such deferred costs to their estimated realizable value, which gives effect to the gross premium earned, related investment income, unpaid losses and loss adjustment expenses and certain other costs expected to be incurred as the premium is earned. DAC is reviewed to determine if it is recoverable from future premium income, including investment income. If such costs are determined to be unrecoverable, they are expensed at the time of determination. The amount of DAC considered recoverable could be reduced in the near term if the estimates of total revenues discussed above are reduced or permanently impaired as a result of the disposition of a line of business. The amount of amortization of DAC could be revised in the near term if any of the estimates discussed above are revised. Property and Equipment. internal-use Impairment of Long-Lived Assets. Intangible Assets. in-place Lease Acquisition Costs. Long-Term Debt. To determine the carrying values of the liability and equity components at issuance, the Company measures the fair value of a similar liability, including any embedded features other than the conversion option, and assigns such value to the liability component. The liability component’s fair value is then subtracted from the initial proceeds to determine the carrying value of the debt instrument’s equity component, which is included in additional paid-in Any embedded feature other than the conversion option is evaluated at issuance to determine if it is probable that such embedded feature will be exercised. If the Company concludes that the exercisability of that embedded feature is not probable, the embedded feature is considered to be non-substantive Transaction costs related to issuing a debt instrument that embodies both liability and equity components are allocated to the liability and equity components in proportion to the allocation of the proceeds and accounted for as debt issuance costs and equity issuance costs, respectively. Debt issuance costs are capitalized and presented as a deduction from the carrying value of the debt. Both debt discount and deferred debt issuance costs are amortized to interest expense over the expected life of the debt instrument using the effective interest method. Equity issuance costs are a reduction to the proceeds allocated to the equity component. Prepaid Share Repurchase Forward Contract. paid-in Losses and Loss Adjustment Expenses. The estimates of unpaid losses and LAE are subject to trends in claim severity and frequency and are continually reviewed. As part of the process, the Company reviews historical data and considers various factors, including known and anticipated regulatory and legal developments, changes in social attitudes, inflation and economic conditions. As experience develops and other data becomes available, these estimates are revised, as required, resulting in increases or decreases to the existing unpaid losses and LAE. Adjustments are reflected in the results of operations in the period in which they are made and the liabilities may deviate substantially from prior estimates. Losses and LAE ceded to or recovered from reinsurers are recorded as a reduction to losses and LAE on the consolidated statement of income. Advance Premiums Premium Revenue Reinsurance . st Certain of the Company’s current reinsurance contracts contain retrospective provisions including terms and conditions that adjust premiums, increase the amount of future coverage, or result in profit commissions based on the loss experience under the contracts. In such cases, a with-and-without received upon the expiration of the contracts. The Company receives ceding commissions from ceding gross written premiums to a third-party reinsurer under one flood quota share reinsurance contract. The ceding commissions represent the reimbursement of the Company’s policy acquisition, underwriting and other operating expenses. Ceding commissions received cover a portion of premium taxes and agent commissions capitalized by the Company and a portion of non-capitalized pro-rata Reinsurance Recovered in Advance on Unpaid Losses. Premium Revenue. pro-rata Policy Fees. Florida Insurance Guaranty Association Assessments. in-force obligated-to-write in-force Foreign Currency. Non-monetary Income Taxes. tax-allocation The Company accounts for income taxes in accordance with U.S. GAAP, resulting in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term “more likely than not” means a likelihood of more than fifty percent; the terms “examined” and “upon examination” also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not more-likely-than-not Fair Value of Financial Instruments. Stock-Based Compensation. paid-in-capital paid-in-capital paid-in-capital Basic and diluted earnings (loss) per common share. “two-class Statutory Accounting Practices. Reclassifications.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2017
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Note 3 — Recent Accounting Pronouncements Accounting Standards Update No. 2017-09. No. 2017-09 2017-09”), 2017-09 Accounting Standards Update No. 2017-08. No. 2017-08 2017-08”), 310-20): 2017-08 Accounting Standards Update No. 2017-05. No. 2017-05 2017-05”), 610-20), 2017-15 2017-05 Accounting Standards Update No. 2017-03. No. 2017-03 2017-03”), 2014-09, 2016-02, 2016-13, Accounting Standards Update No. 2017-01. No. 2017-01 2017-01”), 2017-01 Accounting Standards to be Adopted in Fiscal Year 2018 In February 2018, the FASB issued Accounting Standards Update No. 2018-02 2018-02”), In January 2016, the FASB issued Accounting Standards Update No. 2016-01 2016-01”), 825-10), 2016-01 available-for-sale available-for-sale “available-for-sale” In May 2014, the FASB issued Accounting Standards Update No. 2014-09 2014-09”), 2014-09 2014-09 2014-09

Investments

Investments	12 Months Ended
	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Investments	Note 4 — Investments a) Available-for-Sale The Company holds investments in fixed-maturity securities and equity securities that are classified as available-for-sale. available-for-sale Cost or Gross Gross Estimated Value As of December 31, 2017 Fixed-maturity securities U.S. Treasury and U.S. government agencies $ 42,313 $ 1 $ (287 ) $ 42,027 Corporate bonds 106,897 1,110 (904 ) 107,103 State, municipalities, and political subdivisions 78,954 1,816 (75 ) 80,695 Exchange-traded debt 7,666 197 (204 ) 7,659 Total 235,830 3,124 (1,470 ) 237,484 Equity securities 53,132 6,280 (501 ) 58,911 Total available-for-sale $ 288,962 $ 9,404 $ (1,971 ) $ 296,395 As of December 31, 2016 Fixed-maturity securities U.S. Treasury and U.S. government agencies $ 1,975 $ — $ (36 ) $ 1,939 Corporate bonds 75,538 607 (1,641 ) 74,504 State, municipalities, and political subdivisions 78,018 776 (488 ) 78,306 Exchange-traded debt 11,463 36 (237 ) 11,262 Redeemable preferred stock 237 3 (3 ) 237 Total 167,231 1,422 (2,405 ) 166,248 Equity securities 47,750 5,769 (484 ) 53,035 Total available-for-sale $ 214,981 $ 7,191 $ (2,889 ) $ 219,283 At December 31, 2017, fixed-maturity securities included $249 of U.S. Treasury securities related to a statutory deposit held in trust for the South Carolina Director of Insurance. 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 at December 31, 2017 and 2016 are as follows: December 31, 2017 2016 Amortized Estimated Value Amortized Estimated Value Available-for-sale Due in one year or less $ 35,386 $ 35,364 $ 2,656 $ 2,662 Due after one year through five years 116,575 115,766 49,915 50,023 Due after five years through ten years 57,415 58,984 90,360 89,332 Due after ten years 26,454 27,370 24,300 24,231 $235,830 $237,484 $167,231 $166,248 Sales of Available-for-Sale Proceeds received, and the gross realized gains and losses from sales of available-for-sale Proceeds Gross Gross Year ended December 31, 2017 Fixed-maturity securities $ 31,759 $ 2,176 $ (181 ) Equity securities $ 42,657 $ 3,882 $ (1,565 ) Year ended December 31, 2016 Fixed-maturity securities $ 40,454 $ 604 $ (79 ) Equity securities $ 23,127 $ 2,656 $ (580 ) Year ended December 31, 2015 Fixed-maturity securities $ 53,711 $ 253 $ (470 ) Equity securities $ 25,695 $ 1,327 $ (1,718 ) Other-than-temporary Impairment The Company regularly reviews its individual investment securities for other-than-temporary impairment. 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 and other qualitative 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. Fixed-maturity Securities For the year ended December 31, 2017, the Company recognized impairment losses of $428 related to the sale of four intent-to-sell non-credit The following table presents a rollforward of the cumulative credit losses in other-than-temporary impairments recognized in income for available for sale fixed-maturity securities: 2017 2016 2015 Balance at January 1 $ 475 $ 111 $ — Credit impairments on impaired securities — 475 111 Additional credit impairments on previously impaired securities — 293 — Credit impaired security fully disposed of for which there was no prior intent or requirement to sell (475 ) (385 ) — Reduction due to increase in expected cash flows recognized over the remaining life of the previously impaired security — (19 ) — Balance at December 31 $ — $ 475 $ 111 During 2017, the Company sold two fixed-maturity securities with cumulative credit losses totaling $475. The decision to sell these securities before their maturity was primarily driven by the impact of the Tax Cut and Jobs Act signed into law in 2017. Of two fixed-maturity securities with credit related losses existing at December 31, 2015, one matured with full payment of principal and interest and one was sold due to uncertainties surrounding the issuer’s restructuring plan during 2016. Equity Securities 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, the length of time each security has been in an unrealized loss position, the extent of the decline and the near term prospect for recovery. At December 31, 2017, the Company had one equity security that was other-than-temporarily impaired. This compared with nine and 17 equity securities that were other-than-temporarily impaired at December 31, 2016 and 2015, respectively. The Company recognized impairment losses of $1,039, $917 and $4,570 in the consolidated statement of income for the years ended December 31, 2017, 2016 and 2015, respectively. Securities with gross unrealized loss positions at December 31, 2017 and 2016, aggregated by investment category and length of time the individual securities have been in a continuous loss position, are as follows: Less Than Twelve Months Twelve Months or Longer Total As of December 31, 2017 Gross Estimated Value Gross Estimated Gross Estimated Value Fixed-maturity securities U.S. Treasury and U.S. government agencies $ (246 ) $ 40,587 $ (41 ) $ 1,938 $ (287 ) $ 42,525 Corporate bonds (174 ) 40,627 (730 ) 30,563 (904 ) 71,190 State, municipalities, and political subdivisions (30 ) 9,775 (45 ) 2,297 (75 ) 12,072 Exchange-traded debt (203 ) 2,481 (1 ) 36 (204 ) 2,517 Total fixed-maturity securities (653 ) 93,470 (817 ) 34,834 (1,470 ) 128,304 Equity securities (449 ) 12,812 (52 ) 1,440 (501 ) 14,252 Total available-for-sale $ (1,102 ) $ 106,282 $ (869 ) $ 36,274 $ (1,971 ) $ 142,556 At December 31, 2017, there were 135 securities in an unrealized loss position. Of these securities, 22 securities had been in an unrealized loss position for 12 months or longer. Less Than Twelve Twelve Months or Total As of December 31, 2016 Gross Estimated Gross Estimated Gross Estimated Fixed-maturity securities U.S. Treasury and U.S. government agencies $ (36 ) $ 1,939 $ — $ — $ (36 ) $ 1,939 Corporate bonds (1,546 ) 43,859 (95 ) 2,814 (1,641 ) 46,673 State, municipalities, and political subdivisions (441 ) 26,029 (47 ) 3,036 (488 ) 29,065 Exchange-traded debt (191 ) 4,980 (46 ) 1,954 (237 ) 6,934 Redeemable preferred stock (3 ) 47 — — (3 ) 47 Total fixed-maturity securities (2,217 ) 76,854 (188 ) 7,804 (2,405 ) 84,658 Equity securities (293 ) 10,042 (191 ) 3,209 (484 ) 13,251 Total available-for-sale $ (2,510 ) $ 86,896 $ (379 ) $ 11,013 $ (2,889 ) $ 97,909 At December 31, 2016, there were 134 securities in an unrealized loss position. Of these securities, 20 securities had been in an unrealized loss position for 12 months or longer. The gross unrealized loss of corporate bonds in an unrealized loss position for twelve months or more included $76 of other-than-temporary impairment losses related to non-credit b) Trading Securities At December 31, 2017, the cost, net unrealized gains, and estimated fair value of the Company’s trading equity securities were $953, $92, and $1,045, respectively. There were no investments in trading equity securities at December 31, 2016. Sales of Trading Securities Proceeds received, and the gross realized gains and losses from sales of trading equity securities, for the year ended December 31, 2017 were as follows: Proceeds Gross Gross Year ended December 31, 2017 Equity securities $ 2,625 $ 111 $ (77 ) The Company did not hold any trading equity securities during 2016. c) Limited Partnership Investments The Company has interests in limited partnerships that are not registered or readily tradeable on a securities exchange. These partnerships are private equity funds managed by general partners who make decisions with regard to financial policies and operations. As such, the Company is not the primary beneficiary and does not consolidate these partnerships. In August 2017, the Company entered into a subscription agreement with another limited partnership. The following table provides information related to the Company’s investments in limited partnerships: December 31, 2017 December 31, 2016 Investment Strategy Carrying Unfunded (%)(a) Carrying Unfunded (%)(a) Primarily in senior secured loans and, to a limited extent, in other debt and equity securities of private U.S. lower-middle-market companies. (b)(c)(e) $ 7,276 $ 5,505 15.37 $ 6,246 $ 6,428 16.50 Value creation through active distressed debt investing primarily in bank loans, public and private corporate bonds, asset-backed securities, and equity securities received in connection with debt restructuring. (b)(d)(e) 7,951 1,745 1.76 7,358 1,360 1.76 Maximum long-term capital appreciation through long and short positions in equity and/or debt securities of publicly traded U.S. and non-U.S. — — — 11,333 — 66.58 High returns and long-term capital appreciation through investments in the power, utility and energy industries, and in the infrastructure sector. (b)(g)(h) 7,509 2,512 0.18 4,326 5,766 0.18 Value-oriented investments in less liquid and mispriced senior and junior debts of private equity-backed companies. (b)(i)(j) 448 4,566 0.47 — — — Total $ 23,184 $ 14,328 $ 29,263 $ 13,554 (a) Represents the Company’s percentage investment in the fund at each balance sheet date. (b) Except under certain circumstances, withdrawals from the funds or any assignments are not permitted. Distributions, except income from late admission of a new limited partner, will be received when underlying investments of the funds are liquidated. (c) Expected to have a 10-year (d) Expected to have a three-year term from the end of the capital commitment period, which is March 31, 2018. (e) At the fund manager’s discretion, the term of the fund may be extended for up to two additional one-year (f) The withdrawal was effective on February 15, 2017. As a result, the Company’s investment in this limited partnership was terminated. (g) Expected to have a 10-year (h) With the consent of a super majority of partners, the term of the fund may be extended for up to three additional one-year (i) Expected to have a six-year one-year (j) Unless extended or terminated for reasons specified in the agreement, the capital commitment is expected to expire on December 1, 2018. The following is the aggregated summarized unaudited financial information of limited partnerships included in the investment strategy table above, which in certain cases is presented on a three-month lag due to the unavailability of information at the Company’s respective balance sheet dates. In applying the equity method of accounting, the Company uses the most recently available financial information provided by the general partner of each of these partnerships. The financial statements of these limited partnerships are audited annually. Years Ended December 31, 2017 2016 2015 Operating results: Total income $ 409,169 $ 310,998 $ 4,350 Total expenses 105,281 185,126 77,508 Net income (loss) $ 303,888 $ 125,872 $ (73,158 ) December 31, 2017 2016 Balance Sheet: Total assets $ 4,381,321 $ 2,956,327 Total liabilities $ 382,310 $ 63,813 For the years ended December 31, 2017 and 2016, the Company recognized net investment income of $2,334 and $1,207, respectively, for these investments. For the year ended December 31, 2015, the Company recognized net investment loss of $3,244. At December 31, 2017 and 2016, the Company’s cumulative contributed capital to the partnerships existing at each respective balance sheet date totaled $21,172 and $31,946, respectively, and the Company’s maximum exposure to loss aggregated $23,184 and $29,263, respectively. During the year ended December 31, 2017, the Company received total cash distributions of $12,639, representing $11,758 of returned capital and $881 of return on investment. Included in the return of capital was $11,626 from one limited partnership the Company withdrew from in February 2017. During the year ended December 31, 2016, the Company received in cash $544 of return on investment. There was a return on investment of $12 received by the Company during the year ended December 31, 2015. For the years ended December 31, 2017, 2016 and 2015, the Company recognized its share of earnings or losses based on the respective partnership’s statement of income. The carrying value of these investments approximates the amount the Company expected to recover at December 31, 2017 and 2016. d) Investment in Unconsolidated Joint Venture Melbourne FMA, LLC, a wholly owned subsidiary, currently has a 90% equity interest in FMKT Mel JV, LLC (“FMJV”), a Florida limited liability company treated as a joint venture under U.S. GAAP. FMJV is deemed a variable interest entity 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 January 2016, FMJV sold a portion of its outparcel land for gross proceeds of $829, of which $515 was used to repay a portion of the construction loan obtained for its real estate development project. FMJV recognized a $404 gain on the outparcel sale of which $383 was allocated to the Company in accordance with the profit allocation specified in the operating agreement. On December 15, 2016, FMJV distributed its entire equity interest in FMKT Mel Manager, LLC (“FMKT MGA”), its wholly owned subsidiary, to Melbourne FMA and the other member, each of which received 90% and 10%, respectively. In addition to operating a retail shopping center business, FMKT MGA owned land which included two outparcels. Melbourne FMA accounted for this transaction as a business step acquisition using the fair value method and, as a result, recognized a $4,005 gain on remeasurement of previously held interest. The gain represented the difference between the fair value of the 90% equity interest and its carrying value under the equity method. The fair value of the equity interest was comprised of the fair value of FMKT MGA’s underlying assets primarily determined by an independent appraiser offset by the fair value of liabilities assumed on the date of distribution. Inputs used by the appraiser included, but were not limited to, information about market and surrounding environments, demographics, and the sale or rent of similar types of property within the vicinity. Due to their short-term nature, the carrying value of current assets and assumed liabilities, including a variable interest rate revolving credit line, approximated fair value. See Pineda Landings - Melbourne, Florida In March 2017, FMJV sold a portion of its outparcel land for gross proceeds of $825 and recognized a $331 gain on sale of which $199 was allocated to the Company in accordance with the profit allocation specified in the operating agreement. During 2017, FMKT MGA was merged with Melbourne FMA, LLC. At December 31, 2017 and 2016, the Company’s maximum exposure to loss relating to the variable interest entity was $1,304 and $2,102, respectively, representing the carrying value of the investment. At December 31, 2017, there was $0 of undistributed income from this equity method investment as compared with an undistributed loss, after an equity distribution, of $25 at December 31, 2016, the amounts of which were included in the Company’s consolidated retained income. For the year ended December 31, 2017, the Company received a cash distribution of $564, representing a combined distribution of $147 in earnings and $417 in capital. The limited liability company members received no cash distributions during 2016 and 2015. The following tables provide FMJV’s summarized unaudited financial results and the unaudited financial positions: Years Ended December 31, 2017 2016 2015 Operating results: Total revenues $ 331 $ — $ 118 Total expenses 483 — 257 Net loss $ (152 ) $ — $ (139 ) The Company’s share of net loss (a) $ (234 ) $ — $ (125 ) (a) Included in net investment income in the Company’s consolidated statements of income. Gain from the sale of the outparcel during 2017 was allocated in accordance with the method specified in the operating agreement. December 31, 2017 2016 Balance Sheet: Construction in progress—real estate $ 27 $ 334 Property and equipment, net 1,199 1,654 Cash 236 179 Other 5 180 Total assets $ 1,467 $ 2,347 Accounts payable $ $ 11 Other liabilities 18 — Members’ capital 1,449 2,336 Total liabilities and members’ capital $ 1,467 $ 2,347 Investment in unconsolidated joint venture, at equity* $ 1,304 $ 2,102 * Included the 90% share of FMKT Mel JV’s operating results. FMJV’s assets at December 31, 2017 and 2016 included primarily three outparcels for sale or lease which have increased in value since the adjacent retail shopping center was completed. The Company determined that there was no impairment loss associated with these assets for the years ended December 31, 2017 and 2016. In the fourth quarter of 2017, FMJV decided to terminate its development plan for nearby land, thereby expensing $382 of deferred costs associated with the land feasibility study. The 2015 results reflected expenses incurred during the initial development stage. Because the Company expected to incur such expenses during development of the property and prior to its occupancy, the Company determined there was no impairment loss for the year ended December 31, 2015. e) Real Estate Investments Real estate investments include buildings with office and retail space for lease, outparcels, wet and dry boat storage, one restaurant, and two marinas. Real estate investments consist of the following as of December 31, 2017 and 2016: December 31, 2017 2016 Land $ 26,315 $ 17,592 Land improvements 9,904 9,336 Building 21,284 16,154 Tenant and leasehold improvements 1,204 872 Construction in progress* — 3,404 Other 3,050 2,683 Total, at cost 61,757 50,041 Less: accumulated depreciation and amortization (3,399 ) (1,955 ) Real estate investments $ 58,358 $ 48,086 * This project, which was developed by the Company’s consolidated variable interest entity, was completed in July 2017. The capitalized costs were reclassified to land, land improvement, and building. On October 17, 2017, the Company, through a wholly owned subsidiary, acquired commercial real estate in Tampa, Florida for a purchase price of $9,100. The acquired assets primarily consisted of land, building and in-place 2017-01 f) Consolidated Variable Interest Entity The Company has a commercial property in Riverview, Florida. The development project of this property was completed in July 2017 through a limited liability company treated under U.S. GAAP as a joint venture in which the Company’s subsidiary had a controlling financial interest and, as a result, it was the primary beneficiary (See Note 27 — “Subsequent Events”). The real estate investments of this limited liability company primarily include a retail strip center with 8,400 square feet of net rentable space and an adjacent parcel of land which is currently leased in its entirety to a large gas station and convenience store chain. The following table summarizes the assets and liabilities related to this variable interest entity which are included in the accompanying consolidated balance sheets. December 31, 2017 2016 Cash and cash equivalents $ — $ 65 Construction in progress included in real estate investments $ — $ 3,404 Real estate investments $ 4,680 $ — Other assets $ 152 $ — Accrued expenses $ 21 $ 68 Other liabilities $ 160 $ 11 g) Net Investment Income Net investment income (loss), by source, is summarized as follows: Years Ended December 31, 2017 2016 2015 Available-for-sale Fixed-maturity securities $ 5,689 $ 4,589 $ 3,935 Equity securities 3,318 3,452 3,710 Investment expense (726 ) (651 ) (673 ) Limited partnership investments 2,334 1,207 (3,244 ) Real estate investments (1,018 ) (592 ) (343 ) Loss from unconsolidated joint venture (234 ) — (125 ) Cash and cash equivalents 2,069 1,036 661 Other 7 46 57 Net investment income $ 11,439 $ 9,087 $ 3,978 At December 31, 2017, $87,092 or 34.1% of the Company’s cash and cash equivalents were deposited at three national banks and included $38,543 in three custodial accounts. At December 31, 2016, $203,139 or 72.6% of the Company’s cash and cash equivalents were deposited at three national banks and included $28,431 in three custodial accounts. At December 31, 2017 and 2016, the Company’s cash deposits at any one bank generally exceed the Federal Deposit Insurance Corporation’s $250 coverage limit for insured deposit accounts.

Comprehensive Income (Loss)

Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Comprehensive Income (Loss)	Note 5 — Comprehensive Income (Loss) Comprehensive income (loss) includes net income (loss) and other comprehensive income or loss, which for the Company includes changes in unrealized gains or losses of investments carried at fair value and changes in the unrealized other-than-temporary impairment losses related to these investments. Reclassification adjustments for realized (gains) losses are reflected in net realized investment gains (losses) on the consolidated statements of income. The components of other comprehensive income or loss and the related tax effects allocated to each component were as follows: Year Ended December 31, 2017 Before Income Tax Net of Unrealized gain arising during the period $ 5,996 $ 2,313 $ 3,683 Other-than-temporary impairment loss 1,467 566 901 Call and repayment losses charged to investment income 14 5 9 Reclassification adjustment for realized gains (4,346 ) (1,676 ) (2,670 ) Total other comprehensive income $ 3,131 $ 1,208 $ 1,923 Year Ended December 31, 2016 Before Income Tax Net of Unrealized gain arising during the period $ 7,317 $ 2,823 $ 4,494 Other-than-temporary impairment loss 2,482 957 1,525 Call and repayment losses charged to investment income 20 8 12 Reclassification adjustment for realized gains (2,601 ) (1,004 ) (1,597 ) Total other comprehensive income $ 7,218 $ 2,784 $ 4,434 Year Ended December 31, 2015 Before Income Tax Net of Unrealized loss arising during the period $ (9,366 ) $ (3,613 ) $ (5,753 ) Other-than-temporary impairment loss 4,681 1,806 2,875 Call and repayment losses charged to investment income 77 29 48 Reclassification adjustment for realized losses 608 235 373 Total other comprehensive loss $ (4,000 ) $ (1,543 ) $ (2,457 )

Business Acquisitions

Business Acquisitions	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Business Acquisitions	Note 6 — Business Acquisitions Sorrento Hills Village—Sorrento, Florida On August 16, 2016, the Company’s wholly owned subsidiary, Greenleaf Capital, LLC, assigned the right to purchase the developed property in the ADC Arrangement to its subsidiary, Sorrento PBX, LLC. Sorrento PBX simultaneously exercised the purchase option and acquired the property from Sorrento Retail Investments, LLC. The acquired assets included a retail shopping center and appurtenant facilities in Sorrento, Florida as well as existing tenant lease agreements to use the property. The purchase price was $12,250, which was determined using a predetermined capitalization rate and the projected net operating income of the property. The Company recognized a $2,071 gain on bargain purchase, resulting primarily from a favorable fair value at the date of acquisition as compared with the Company’s purchase price. The Company relied on an independent appraisal report, which is based on the weighted results of two valuation approaches, in determining the estimated fair values of the significant assets acquired. This acquisition was financed in part by the proceeds from the issuance of a 3.75% promissory note. See Note 13 — “Long-Term Debt” for additional information. The table below presents an allocation of the purchase price to the net assets acquired based on their fair values at the acquisition date: Identifiable assets acquired and liabilities assumed: Cash $ 194 Land 1,600 Land improvements 3,045 Buildings 7,120 Intangibles 2,580 Tenant improvements 76 Building improvement 29 Other assets 33 Other liabilities (356 ) Total net assets acquired 14,321 Less: Gain on bargain purchase (2,071 ) Purchase price $ 12,250 Pineda Landings — Melbourne, Florida With regard to the 90% equity interest in FMKT MGA distributed by FMJV as described in Investment in Unconsolidated Joint Venture The table below presents the fair values of the net assets acquired at the acquisition date: Identifiable assets acquired and liabilities assumed: Cash $ 502 Land 2,857 Land improvements 4,671 Buildings 5,480 Intangibles 2,619 Tenant improvements 403 Building improvement 403 Other property and equipment 17 Other assets 940 Construction loan (8,214 ) Other liabilities (550 ) Total net assets acquired 9,128 Less: Carrying value of 90% equity method investment (2,859 ) Gain on remeasurement of previously held interest (4,005 ) Payable to the 10% joint venture partner (200 ) Cash paid to the 10% joint venture partner $ 2,064 Subsequent to the acquisition date, the Company incurred an impairment loss of $388 in 2016 resulting from the write-down of lease intangibles and other assets associated with the unexpected closure of one tenant’s business at this property. The acquired businesses, in aggregate, contributed $426 of rental income and $460 of net loss to the Company for the period from the acquisition date to December 31, 2016. Pro forma results of operations are not presented as the effects of the acquisition were not material to the Company’s consolidated results of operations.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 7 — Fair Value Measurements The Company records and discloses certain financial assets at their estimated fair value. 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. Level 2 - Other inputs that are observable for the assets, either directly or indirectly such as quoted prices for identical assets that are not observable throughout the full term of the asset. Level 3 - Inputs that are unobservable. Valuation Methodology Cash and cash equivalents Cash and cash equivalents primarily consist of money-market funds and certificates of deposit. Their carrying value approximates fair value due to the short maturity and high liquidity of these funds. Available-for-sale Estimated fair values of the Company’s available-for-sale The estimated fair values for securities that do not trade on a daily basis are determined by management, utilizing prices obtained from an independent pricing service and information provided by brokers, which are level 2 inputs. Management reviews the assumptions and methods utilized by the pricing service and then compares the relevant data and pricing to broker-provided data. The Company gains assurance of the overall reasonableness and consistent application of the assumptions and methodologies and compliance with accounting standards for fair value determination through ongoing monitoring of the reported fair values. Limited Partnership Investments As described in Note 4 — “Investments” under Limited Partnership Investments Revolving Credit Facility The interest rate on the Company’s revolving credit facility was periodically adjusted based on the London Interbank Offered Rate plus a spread. As a result, its carrying value at December 31, 2016 approximated fair value. In February 2017, this credit facility was converted into a 3.95% three-year promissory note. See Note 13 — “Long-Term Debt” under 3.95% Promissory Note. Long-term debt The following table summarizes components of the Company’s long-term debt and methods used in estimating their fair values: Maturity Valuation Methodology 8% Senior Notes * Closing price listed on the New York Stock Exchange 3.875% Convertible Senior Notes 2019 Quoted price at January 3, 2018; Discounted cash flow method/Level 3 inputs at December 31, 2016 4.25% Convertible Senior Notes 2037 Quoted price 3.95% Promissory Note 2020 Discounted cash flow method/Level 3 inputs 4% Promissory Note 2031 Discounted cash flow method/Level 3 inputs 3.75% Promissory Note 2036 Discounted cash flow method/Level 3 inputs * Redeemed on April 3, 2017. Assets Measured at Estimated Fair Value on a Recurring Basis: The following tables present information about the Company’s financial assets measured at estimated fair value on a recurring basis. The table indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of December 31, 2017 and 2016: Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2017 Financial Assets: Cash and cash equivalents $ 255,884 $ — $ — $ 255,884 Fixed-maturity securities: U.S. Treasury and U.S. government agencies 40,527 1,500 — 42,027 Corporate bonds 106,109 994 — 107,103 State, municipalities, and political subdivisions — 80,695 — 80,695 Exchange-traded debt 7,659 — — 7,659 Total fixed-maturity securities 154,295 83,189 — 237,484 Equity securities 58,911 — — 58,911 Total available-for-sale 213,206 83,189 — 296,395 Trading equity securities 1,045 — — 1,045 Total $ 470,135 $ 83,189 $ — $ 553,324 Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2016 Financial Assets: Cash and cash equivalents $ 280,531 $ — $ — $ 280,531 Fixed-maturity securities: U.S. Treasury and U.S. government agencies 1,939 — — 1,939 Corporate bonds 73,519 985 — 74,504 State, municipalities, and political subdivisions — 78,306 — 78,306 Exchange-traded debt 11,262 — — 11,262 Redeemable preferred stock 237 — — 237 Total fixed-maturity securities 86,957 79,291 — 166,248 Equity securities 53,035 — — 53,035 Total available-for-sale 139,992 79,291 — 219,283 Total $ 420,523 $ 79,291 $ — $ 499,814 There were no transfers between Level 1, 2 or 3 during the years ended December 31, 2017 and 2016. Assets and Liabilities Carried at Other Than Fair Value The following tables present fair value information for assets and liabilities that are carried on the balance sheet at amounts other than fair value as of December 31, 2017 and 2016: Carrying Fair Value Measurements Using Estimated Value (Level 1) (Level 2) (Level 3) Fair Value As of December 31, 2017 Financial Assets: Limited partnership investments $ 23,184 $ — $ — $ 23,184 $ 23,184 Financial Liabilities: Long-term debt: 3.875% Convertible senior notes $ 85,436 $ — $ 90,827 $ — $ 90,827 4.25% Convertible senior notes 126,454 — 124,444 — 124,444 3.95% Promissory note 9,270 — — 7,894 7,894 4% Promissory note 8,206 — — 7,820 7,820 3.75% Promissory note 8,469 — — 9,227 9,227 Total long-term debt $ 237,835 $ — $ 215,271 $ 24,941 $ 240,212 Carrying Fair Value Measurements Using Estimated Value (Level 1) (Level 2) (Level 3) Fair Value As of December 31, 2016 Financial Assets: Limited partnership investments $ 29,263 $ — $ — $ 29,263 $ 29,263 Financial Liabilities: Revolving credit facility $ 9,463 $ — $ — $ 9,463 $ 9,463 Long-term debt: 8% Senior notes $ 39,448 $ — $ 41,618 $ — $ 41,618 3.875% Convertible senior notes 81,988 — — 84,696 84,696 4% Promissory note 8,660 — — 8,664 8,664 3.75% Promissory note 8,767 — — 8,506 8,506 Total long-term debt $ 138,863 $ — $ 41,618 $ 101,866 $ 143,484

Deferred Policy Acquisition Cos

Deferred Policy Acquisition Costs	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Deferred Policy Acquisition Costs	Note 8 — Deferred Policy Acquisition Costs The following table summarizes the activity with respect to deferred policy acquisition costs: December 31, 2017 2016 Beginning balance $ 16,639 $ 18,602 Policy acquisition costs deferred 35,736 35,905 Amortization (35,663 ) (37,868 ) Ending balance $ 16,712 $ 16,639 The amount of policy acquisition costs amortized and included in policy acquisition and other underwriting expenses for the years ended December 31, 2017, 2016 and 2015 was $35,663, $37,868 and $36,224, respectively.

Property and Equipment, net

Property and Equipment, net	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property and Equipment, net	Note 9 — Property and Equipment, net Property and equipment, net consists of the following: December 31, 2017 2016 Land $ 1,642 $ 1,642 Building 7,952 7,932 Computer hardware and software 3,964 2,294 Office furniture and equipment 2,014 1,940 Tenant and leasehold improvements 3,320 3,250 Other 1,387 940 Total, at cost 20,279 17,998 Less:accumulated depreciation and amortization (7,814 ) (6,624 ) Property and equipment, net $ 12,465 $ 11,374 Depreciation and amortization expense under property and equipment was $1,237, $1,272 and $1,338, respectively, for the years ended December 31, 2017, 2016 and 2015.

Intangible Assets, net

Intangible Assets, net	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, net	Note 10 — Intangible Assets, net The Company’s intangible assets, net consist of the following: December 31, 2017 2016 Anchor tenants relationships $ 1,761 $ 1,761 In-place 3,806 3,214 Total, at cost 5,567 4,975 Less: accumulated amortization (572 ) (76 ) Intangible assets, net $ 4,995 $ 4,899 Recognized with the 2017 acquisition of commercial real estate described in Real Estate Investments in-place in-place Amortization expense for intangible assets after December 31, 2017 is as follows: Year Amount 2018 $ 604 2019 604 2020 597 2021 493 2022 419 Thereafter 2,278 Total $ 4,995

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Note 11 — Other Assets The following table summarizes the Company’s other assets: December 31, 2017 2016 Benefits receivable related to retrospective reinsurance contracts $ 2,393 $ 5,810 Prepaid expenses 1,741 1,581 Lease acquisition costs, net 723 641 Restricted cash 809 600 Other 4,884 2,710 Total other assets $ 10,550 $ 11,342 During 2017, benefits receivable related to retrospective reinsurance contracts were adjusted due to the impact from Hurricane Irma. See Note 14 — “Reinsurance.”

Revolving Credit Facility

Revolving Credit Facility	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Revolving Credit Facility	Note 12 — Revolving Credit Facility In connection with FMJV’s December 15, 2016 distribution of its 90% ownership interest in FMKT MGA as described in Investment in Unconsolidated Joint Venture Pineda Landings—Melbourne, Florida In February 2017, the Company exercised the conversion option under the credit agreement. See 3.95% Promissory Note

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Long-Term Debt	Note 13 — Long-Term Debt The following table summarizes the Company’s long-term debt: December 31, 2017 2016 8% Senior Notes, redeemed in April 2017 $ — $ 40,250 3.875% Convertible Senior Notes, due March 15, 2019 89,990 89,990 4.25% Convertible Senior Notes, due March 1, 2037 143,750 — 3.95% Promissory note, due through February 17, 2020 9,360 — 4% Promissory note, due through February 1, 2031 8,348 8,821 3.75% Promissory note, due through September 1, 2036 8,613 8,924 Total principal amount 260,061 147,985 Less: unamortized discount and issuance costs (22,226 ) (9,122 ) Total long-term debt $ 237,835 $ 138,863 The following table summarizes future maturities of long-term debt as of December 31, 2017, which takes into consideration the assumption that the 4.25% Convertible Senior Notes are repurchased at the earliest call date. Year 2018 $ 1,049 2019 91,081 2020 9,761 2021 916 2022 144,702 Thereafter 12,552 Total $ 260,061 Information with respect to interest expense related to long-term debt is as follows: Years Ended December 31, 2017 2016 2015 Interest Expense: Contractual interest $ 10,424 $ 7,315 $ 7,211 Non-cash 6,404 3,529 3,543 Capitalized interest (b) (61 ) — — Total $ 16,767 $ 10,844 $ 10,754 (a) Represents amortization of debt discount and issuance costs. (b) Interest was capitalized for a construction project in Riverview, Florida which is intended for lease. Convertible Senior Notes The Company’s Convertible Senior Notes consist of 3.875% Convertible Senior Notes due 2019 (“3.875% Convertible Notes”) and 4.25% Convertible Senior Notes due 2037 (“4.25% Convertible Notes”). The 3.875% Convertible Notes were issued in late 2013 in a private offering for an aggregate principal amount of $103,000. During the first quarter of 2016, the Company repurchased an aggregate of $13,010 in principal, thereby decreasing the aggregate principal balance of its 3.875% Convertible Notes to $89,990. On March 3, 2017, the Company issued 4.25% Convertible Notes in a private offering for an aggregate principal amount of $143,750. The net proceeds of the 4.25% Convertible Notes were $138,775 after $4,975 in related issuance and transaction costs. The following table summarizes the principal and interest payment terms of these Convertible Senior Notes: Convertible Senior Notes Interest Payment Terms 3.875% Convertible Notes, due March 15, 2019 Semiannually in arrears: March 15 and September 15 4.25% Convertible Notes, due March 1, 2037 Semiannually in arrears: March 1 and September 1 The Convertible Senior Notes rank equally in right of payment to the Company’s existing and future unsecured and unsubordinated obligations. These Convertible Senior Notes do not contain any financial or operating covenants or restrictions on the payments of dividends, the incurrence of indebtedness or the issuance or repurchase of securities by the Company or any of its subsidiaries. The Convertible Senior Notes provide no protection to the note holders in the event of a fundamental change or other corporate transaction involving the Company except those described in each respective indenture. These Convertible Senior Notes do not require a sinking fund to be established for the purpose of redemption. In conjunction with the issuances of the Convertible Senior Notes, the Company entered into prepaid share repurchase forward contracts and share repurchase agreements providing for the repurchase of shares of the Company’s common stock. See Note 19 — “Stockholders’ Equity” under Share Repurchase Agreements Prepaid Share Repurchase Forward Contracts The following table summarizes information regarding the equity and liability components of the Convertible Senior Notes: December 31, 2017 2016 Principal amount $ 233,740 $ 89,990 Unamortized discount (17,354 ) (6,795 ) Liability component – net carrying value before issuance costs $ 216,386 $ 83,195 Equity component – conversion, net of offering costs $ 31,051 $ 15,900 Embedded Conversion Feature The conversion feature of these Convertible Senior Notes is subject to conversion rate adjustments upon the occurrence of specified events (including payment of dividends above a specified amount) but will not be adjusted for any accrued and unpaid interest. 3.875% Convertible Notes 4.25% Convertible Notes The holders of the Convertible Senior Notes may convert all or a portion of their Convertible Senior Notes during specified periods as follows: (1) during any calendar quarter commencing after the calendar quarter ending on the dates specified in each respective indenture, if the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business-day trading-day The note holders who elect to convert their Convertible Senior Notes in connection with a fundamental change as described in the indentures will be entitled to a “make-whole” adjustment in the form of an increase in the conversion rate. Upon conversion, the Company has options to satisfy its conversion obligation by paying or delivering cash, shares of its common stock or a combination of cash and shares of its common stock. As of December 31, 2017, none of the conditions allowing the holders of either class of the Convertible Senior Notes to convert had been met. The Company determined that the Convertible Senior Notes’ embedded conversion feature is not a derivative financial instrument but rather is required to be separately accounted for in equity because the Company may elect to settle the conversion option entirely or partially in cash. At issuance, the Company accounted for the equity component of the embedded conversion feature as a reduction in the carrying amount of the debt and an increase in additional paid-in Embedded Redemption Feature – Fundamental Change The note holders have the right to require the Company to repurchase for cash all or any portion of the Convertible Senior Notes at par prior to the maturity date should any of the fundamental change events described in the indentures occur. The Company concluded that this embedded redemption feature is not a derivative financial instrument and that it is not probable at issuance that any of the specified fundamental change events will occur. Therefore, this embedded redemption feature is not substantive and will not affect the expected life of the liability component. Embedded Redemption Feature – Put Option of the Note Holder At the option of the holders of the 4.25% Convertible Notes, the Company is required to repurchase for cash all or any portion of the 4.25% Convertible Notes at par on March 1, 2022, March 1, 2027 or March 1, 2032. The Company concluded that this embedded feature is not a derivative financial instrument. In addition, based on economic factors at the time when the 4.25% Convertible Notes were issued, the Company determined it is probable that the note holders will exercise this option. Thus, the Company amortizes the liability component and related issuance costs associated with the 4.25% Convertible Notes over the period from March 3, 2017 to March 1, 2022. The effective interest rates for the 3.875% Convertible Notes and the 4.25% Convertible Notes, taking into account both cash and non-cash 20-year 8% Senior Notes On April 3, 2017, the Company redeemed its 8% publicly traded, unsecured senior notes which had unamortized debt issuance costs of $743 at par for $40,805, including accrued and unpaid interest of $555. For the year ended December 31, 2017, the Company recognized a loss of $743 associated with the early extinguishment of this debt. The redemption was funded by the net proceeds from the issuance of the 4.25% Convertible Senior Notes. 3.95% Promissory Note On February 27, 2017, the Company converted its outstanding revolving credit facility of $9,441 into a three-year mortgage loan primarily collateralized by a retail shopping center in Melbourne, Florida. Shortly after the loan conversion, the Company withdrew an additional amount of $109, thereby increasing the loan amount to $9,550. The loan bears a fixed annual interest rate of 3.95%. Approximately $50 of principal and interest is payable in 35 monthly installments beginning March 17, 2017 plus a final balloon payment of $8,891 including principal and unpaid interest payable on February 17, 2020. The promissory note may be repaid in part or in full at any time without penalty. 3.75% Promissory Note In connection with the business acquisition described in Note 6 — Business Acquisitions, Sorrento PBX, LLC entered into a 20-year 4% Promissory Note On January 14, 2016, HCPCI Holdings, LLC, a subsidiary of the Company, entered into a 15-year

Reinsurance

Reinsurance	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Reinsurance	Note 14 — Reinsurance The Company cedes a portion of its homeowners’ insurance exposure to other entities under catastrophe excess of loss reinsurance treaties and one quota share reinsurance agreement. Under the terms of the quota share reinsurance agreement effective January 1, 2017, the Company was entitled to a 30% ceding commission on ceded premiums written. During the third quarter of 2017, the Company entered into a three-year flood catastrophe excess of loss reinsurance contract effective July 1, 2017. The reinsurance premiums under this three-year contract are generally determined on a quarterly basis based on the premiums associated with the applicable flood total insured value in force on the last day of the preceding quarter. Effective September 1, 2017, the quota share reinsurance agreement was terminated and replaced with a new quota share agreement with revised terms and conditions. Under the new agreement, the Company is also entitled to a 30% ceding commission on ceded premiums written. 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 each year taking into consideration probable maximum losses and reinsurance market conditions. The impact of the reinsurance treaties on premiums written and earned is as follows: Years Ended December 31, 2017 2016 2015 Premiums Written: Direct $ 346,188 $ 352,803 $ 393,009 Assumed 1,158 14,388 3,329 Gross written 347,346 367,191 396,338 Ceded (133,635 ) (135,051 ) (140,614 ) Net premiums written $ 213,711 $ 232,140 $ 255,724 Premiums Earned: Direct $ 347,235 $ 372,699 $ 360,878 Assumed 11,018 5,979 62,242 Gross earned 358,253 378,678 423,120 Ceded (133,635 ) (135,051 ) (140,614 ) Net premiums earned $ 224,618 $ 243,627 $ 282,506 During the year ended December 31, 2017, ceded losses of $214,082 were recognized as a reduction in losses and LAE, $7,400 of which related to Oxbridge Reinsurance Limited, a related party. The reduction in 2017 was primarily related to Hurricane Irma which made landfall in the Florida peninsula and caused significant property damages across the region. During the years ended December 31, 2016 and 2015, there were no recoveries pertaining to reinsurance contracts that were deducted from losses incurred. At December 31, 2017 and 2016, there were 37 and 35 reinsurers, respectively, participating in the Company’s reinsurance program. Amounts receivable with respect to reinsurers at December 31, 2017 and 2016 were $103,104 and $0, respectively. Approximately 29.7% of the reinsurance recoverable balance at December 31, 2017 was concentrated in two reinsurers. Based on the insurance ratings, the payment history and the financial strength of the reinsurers, management believes there was no significant credit risk associated with its reinsurers’ obligations to perform on any prepaid reinsurance contract and to fund any reinsurance recoverable balance as of December 31, 2017. The ratio of assumed premiums earned to net premiums earned for the years ended December 31, 2017, 2016 and 2015 was 4.9%, 2.5%, and 22.0%, respectively. Certain of the reinsurance contracts include retrospective provisions that adjust premiums, increase the amount of future coverage, or result in a profit commission in the event losses are minimal or zero. Due to the losses incurred by Hurricane Irma, the balances of previously accrued benefits and deferred reinsurance premiums were adjusted with the changes recognized in the consolidated statement of income as additional ceded premiums. For the year ended December 31, 2017, the Company recognized net premiums ceded of $5,740, related to these adjustments. Included in these amounts attributable to the Company’s contract with Oxbridge for the year ended December 31, 2017 were $933. In contrast, these adjustments were reflected as a net reduction in premiums ceded of $12,677 and $18,322 for the years ended December 31, 2016 and 2015, respectively, of which $1,929 and $2,797 related to the Company’s contract with Oxbridge. In June 2016, the Company received a total of $37,800 in cash benefits related to two retrospective reinsurance contracts that terminated May 31, 2016 of which $7,560 was received from Oxbridge. In September 2016, the Company received the final cash payment of $5,716 under the terms of the remaining retrospective reinsurance contract which terminated May 31, 2016. In addition, these adjustments are reflected in other assets and prepaid reinsurance premiums. At December 31, 2017 and 2016, other assets included $2,393 and $5,810, respectively, of which $479 and $1,043 related to the contract with Oxbridge and prepaid reinsurance premiums included $0 and $2,152, respectively, of which $0 and $338 related to the contract with Oxbridge. Management believes the credit risk associated with the collectability of these accrued benefits is minimal as the amount receivable is concentrated with one reinsurer and the Company monitors the creditworthiness of this reinsurer based on available information about the reinsurer’s financial condition.

Losses and Loss Adjustment Expe

Losses and Loss Adjustment Expenses	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Losses and Loss Adjustment Expenses	Note 15 — Losses and Loss Adjustment Expenses The liability for losses and LAE 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. See Loss and Loss Adjustment Expenses The Company currently 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 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. Activity in the liability for losses and LAE is summarized as follows: Years Ended December 31, 2017 2016 2015 Gross balance, beginning of year $ 70,492 $ 51,690 $ 48,908 Incurred, net of reinsurance, related to: Current year 146,922 104,128 78,325 Prior years 18,707 20,539 8,899 Total incurred, net of reinsurance 165,629 124,667 87,224 Paid, net of reinsurance, related to: Current year (87,770 ) (64,812 ) (51,095 ) Prior years (50,533 ) (41,053 ) (33,347 ) Total paid, net of reinsurance (138,303 ) (105,865 ) (84,442 ) Net balance, end of year 97,818 70,492 51,690 Add: reinsurance recoverable 100,760 — — Gross balance, end of year $ 198,578 $ 70,492 $ 51,690 The establishment of loss reserves is an inherently uncertain process and changes in loss reserve estimates are expected as these 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 adjusted. During the year ended December 31, 2017, the Company incurred $267,000 of estimated gross losses or approximately $54,000 of estimated net losses related to Hurricane Irma and experienced unfavorable development of $18,715, of which $17,869 pertains to claims in the 2015 and 2016 loss years. The 2017 prior year development was driven by approximately $16,200 of continued reserve strengthening in response to trends involving assignment of insurance benefits and litigation and a $2,500 increase in 2016 loss reserves related to Hurricane Matthew. The following is information about incurred and paid claims development as of December 31, 2017, net of reinsurance, as well as cumulative claim frequency and the total of incurred-but-not-reported Homeowners Multi-peril and Dwelling Fire Insurance (a) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Net of Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2012 $ 66,425 $ 62,742 $ 64,083 $ 66,505 $ 67,058 $ 66,465 $ 155 6,617 2013 — 67,579 69,932 69,906 72,020 71,604 540 7,003 2014 — — 75,810 81,773 84,917 88,054 2,350 7,649 2015 — — — 78,017 90,902 96,173 4,398 7,627 2016 — — — — 81,446 90,878 12,840 6,863 2017 — — — — — 91,443 37,388 5,325 Total $ 504,617 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2012 $ 36,914 $ 53,225 $ 59,041 $ 62,836 $ 64,667 $ 65,903 2013 — 40,240 57,374 64,257 68,106 70,224 2014 — — 47,650 68,897 77,712 82,463 2015 — — — 50,939 76,042 87,784 2016 — — — — 51,663 73,037 2017 — — — — — 43,039 Total $ 422,450 All outstanding liabilities before 2012, net of 538 Liabilities for losses and loss adjustment, net of $ 82,705 (a) Excludes losses from Wind-only insurance (2012 through 2017), any hurricane event prior to 2017 and Hurricane Irma (2017). (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Homeowners Wind-only Insurance (a) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2015 $ — $ — $ — $ 308 $ 401 $ 569 $ 2 100 2016 — — — — 1,005 1,314 41 228 2017 — — — — — 1,528 866 144 Total $ 3,411 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2015 $ — $ — $ — $ 156 $ 332 $ 464 2016 — — — — 689 1,155 2017 — — — — — 484 Total $ 2,103 All outstanding liabilities before 2012, — Liabilities for losses and loss $ 1,308 * The Company began writing Homeowners Wind-only insurance in 2015. (a) Excludes losses from multi-peril and dwelling fire insurance (2012 through 2017), any hurricane event prior to 2017 and Hurricane Irma (2017). (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Losses Specific to Any Hurricane Event prior to 2017 As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2016 $ — $ — $ — $ — $ 21,414 $ 24,126 $ 3,435 2,410 2017 — — — — — 171 — 113 Total $ 24,297 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2016 $ — $ — $ — $ — $ 12,227 $ 20,025 2017 — — — — — 163 Total $ 20,188 All outstanding liabilities before 2012, — Liabilities for losses and loss $ 4,109 (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Losses Specific to Hurricane Irma (2017) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2017 $ — $ — $ — $ — $ — $ 53,430 $ 9,614 17,862 Total $ 53,430 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2017 $ — $ — $ — $ — $ — $ 43,742 Total $ 43,742 All outstanding liabilities before 2012, — Liabilities for losses and loss adjustment, $ 9,688 (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event The reconciliation of the net incurred and paid loss development tables to the liability for losses and loss adjustment expenses is as follows: December 31, Net outstanding liabilities Homeowners multi-peril and dwelling fire insurance $ 82,705 Homeowners Wind-only insurance 1,308 Losses specific to any hurricane prior to 2017 4,109 Losses specific to Hurricane Irma (2017) 9,688 Other short-duration insurance lines 8 Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance 97,818 Reinsurance recoverables 100,760 Total gross liability for unpaid losses and loss adjustment expenses $ 198,578 The following is supplementary and unaudited information about average historical claims duration as of December 31, 2017: Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance Years 1 2 3 4 5 6 Homeowners multi-peril and dwelling fire insurance 53.8 % 24.4 % 10.1 % 5.5 % 2.9 % 1.9 % Homeowners Wind-only insurance 37.2 % 33.2 % 8.7 % * * * Losses specific to any hurricane prior to 2017 51.0 % 32.3 % — — — — Losses specific to Hurricane Irma (2017) 81.9 % — — — — — * The Company began writing Homeowners Wind-only insurance in 2015.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Information	Note 16 — Segment Information The Company’s businesses consist of four operating divisions: property and casualty insurance, reinsurance, investment real estate and information technology. The Company’s chief executive officer who serves as the Company’s chief operating decision maker evaluates each division’s financial and operating performances based on revenue and operating income. The Company aggregates its operating divisions into segments based on organizational structure and revenue source. Due to their economic characteristics, the Company’s property and casualty insurance division and reinsurance division are grouped together into one reportable segment under insurance operations. For the years ended December 31, 2017, 2016 and 2015, revenues from the Company’s insurance operations before intracompany elimination represented 96.2%, 95.5% and 97.5%, respectively, of total revenues of all operating segments. At December 31, 2017, 2016 and 2015, insurance operations’ total assets represented 87.1%, 87.9% and 91.8%, respectively, of the combined assets of all operating segments. See Note 1 — “Nature of Operations” for a description of the Company’s insurance operations. The following tables present segment information reconciled to the Company’s consolidated statements of income. Intersegment transactions are not eliminated from segment results. However, intracompany transactions are eliminated in segment results below. For the Year Ended December 31, 2017 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 224,618 $ — $ — $ — $ 224,618 Net investment income 9,898 6 2,974 (1,439 ) 11,439 Net realized investment gains 3,978 — 368 — 4,346 Net unrealized investment gains — — 92 — 92 Net other-than-temporary impairment losses (1,258 ) — (209 ) — (1,467 ) Policy fee income 3,622 — — — 3,622 Other 693 7,046 4,417 (10,400 ) 1,756 Total revenue 241,551 7,052 7,642 (11,839 ) 244,406 Expenses: Losses and loss adjustment expenses 165,629 — — — 165,629 Amortization of deferred policy acquisition costs 35,663 — — — 35,663 Interest expense — 1,250 15,704 (187 ) 16,767 Loss on repurchases of senior notes — — 743 — 743 Depreciation and amortization 128 2,121 939 (1,950 ) 1,238 Other 27,547 4,022 18,123 (9,702 ) 39,990 Total expenses 228,967 7,393 35,509 (11,839 ) 260,030 Income (loss) before income taxes $ 12,584 $ (341 ) $ (27,867 ) $ — $ (15,624 ) Total revenue from non-affiliates(c) $ 241,551 $ 5,525 $ 6,958 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation. For the Year Ended December 31, 2016 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 243,627 $ — $ — $ — $ 243,627 Net investment income (loss) 8,440 18 1,162 (533 ) 9,087 Net realized investment gains 2,450 — 151 — 2,601 Net other-than-temporary impairment losses (2,467 ) — (15 ) — (2,482 ) Policy fee income 3,914 — — — 3,914 Gain on repurchases of convertible senior notes — — 153 — 153 Gain on bargain purchase — 2,071 — — 2,071 Gain on remeasurement of previously held interest — 4,005 — — 4,005 Other 684 4,505 4,104 (7,823 ) 1,470 Total revenue 256,648 10,599 5,555 (8,356 ) 264,446 Expenses: Losses and loss adjustment expenses 124,667 — — — 124,667 Amortization of deferred policy acquisition costs 37,868 — — — 37,868 Interest expense — 561 10,518 — 11,079 Depreciation and amortization 158 814 908 (608 ) 1,272 Other operating expenses 31,351 2,921 16,180 (7,748 ) 42,704 Total expenses 194,044 4,296 27,606 (8,356 ) 217,590 Income (loss) before income taxes $ 62,604 $ 6,303 $ (22,051 ) $ — $ 46,856 Total revenue from non-affiliates(c) $ 256,648 $ 9,072 $ 5,470 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation. For the Year Ended December 31, 2015 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 282,506 $ — $ — $ — $ 282,506 Net investment income (loss) 6,841 5 (1,971 ) (897 ) 3,978 Net realized investment (losses) gains (716 ) — 108 — (608 ) Net other-than-temporary impairment losses (4,606 ) — (75 ) — (4,681 ) Policy fee income 3,496 — — — 3,496 Other 564 4,095 3,209 (6,607 ) 1,261 Total revenue 288,085 4,100 1,271 (7,504 ) 285,952 Expenses: Losses and loss adjustment expenses 87,224 — — — 87,224 Amortization of deferred policy acquisition costs 36,224 — — — 36,224 Interest expense — 15 10,739 — 10,754 Depreciation and amortization 185 603 920 (370 ) 1,338 Other operating expenses 30,665 2,822 17,867 (7,134 ) 44,220 Total expenses 154,298 3,440 29,526 (7,504 ) 179,760 Income (loss) before income taxes $ 133,787 $ 660 $ (28,255 ) $ — $ 106,192 Total revenue from non-affiliates(c) $ 288,085 $ 2,612 $ 1,104 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation. The following table presents segment assets reconciled to the Company’s total assets in the consolidated balance sheets. December 31, 2017 2016 Segment: Insurance Operations $ 652,754 $ 651,927 Real Estate Operations 80,152 71,226 Corporate and Other 127,822 45,623 Consolidation and Elimination (18,464 ) (98,712 ) Total assets $ 842,264 $ 670,064

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Note 17 — Income Taxes A summary of income tax expense is as follows: Years Ended December 31, 2017 2016 2015 Current: Federal $ (3,933 ) $ 14,918 $ 34,768 State 34 2,666 5,856 Foreign 81 96 68 Total current taxes (3,818 ) 17,680 40,692 Deferred: Federal (4,144 ) 182 (275 ) State (757 ) (9 ) (46 ) Foreign (12 ) (18 ) (40 ) Total deferred taxes (4,913 ) 155 (361 ) Income tax (benefit) expense $ (8,731 ) $ 17,835 $ 40,331 The reasons for the differences between the statutory Federal income tax rate and the effective tax rate are summarized as follows: Years Ended December 31, 2017 2016 2015 Amount % Amount % Amount % Income taxes at statutory rate $ (5,468 ) 35.0 $ 16,395 35.0 $ 37,167 35.0 Increase (decrease) in income taxes resulting from: State income taxes, net of federal tax benefits (657 ) 4.2 1,710 3.6 3,783 3.6 Effects of tax rate changes (1,400 ) 9.0 — — — — Share-based compensation (705 ) 4.5 — — — — Other (501 ) 3.2 (270 ) (0.5 ) (619 ) (0.6 ) Income tax (benefit) expense $ (8,731 ) 55.9 $ 17,835 38.1 $ 40,331 38.0 The Company has no uncertain tax positions or unrecognized tax benefits that, if recognized, would impact the effective income tax rate. The tax returns filed for the years ending December 31, 2016, 2015, and 2014 remain subject to examination by the Company’s major taxing jurisdictions. The Company elected to classify, if any, interest, and penalties arising from uncertain tax positions as income tax expense as permitted by current accounting standards. There have been no material amounts of interest or penalties for the years ended December 31, 2017, 2016 and 2015. In July 2017, the Company received notice from the Internal Revenue Service stating the Company’s 2015 federal income tax return would be examined. The examination is currently in the process of gathering information. On December 22, 2017, the Tax Cuts and Jobs Act (the “2017 Tax Act”) was passed and signed into law. Key components of the 2017 Tax Act are: a permanent reduction to the federal corporate income tax rate from a bracket system with a top tax rate of 35% to a flat rate of 21% beginning on January 1, 2018; implementation of a territorial tax system; an amendment to Internal Revenue Code Section 965 that requires U.S. shareholders (10% or greater) of controlled foreign corporations and other specified foreign corporations to include in income, for the last taxable year of such foreign corporation beginning before January 1, 2018, such U.S. shareholder’s pro rata share of a deemed repatriation amount; and changes to carryback and carryforward rules for net operating losses arising after December 31, 2017. Under U.S. GAAP, the tax effects of changes in tax laws or rates need to be recognized in the period in which the law is enacted. On the same day of the passing and enactment of the 2017 Tax Act, the Securities Exchange Commission staff issued Staff Accounting Bulletin No. 118 to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the 2017 Tax Act. The Company used estimates with regard to several gross temporary book and tax differences, including depreciable assets, deductions for loss reserves and income from limited partnership interests in measuring provisional tax effects. The ultimate outcome may materially differ from these provisional amounts due to, among other things, changes in interpretations and assumptions, and additional regulatory guidance. The Company expects to finalize the accounting for the tax effects when the 2017 U.S. corporate income tax return is filed in October 2018. For the year ended December 31, 2017, the Company recognized a provisional $1,400 tax benefit related to net deferred tax liabilities due to the lower future corporate income tax rates enacted by the 2017 Tax Act in the Company’s consolidated statement of income. Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s net deferred income tax assets are as follows: December 31, 2017 2016 Deferred tax assets: Unearned premiums $ 5,753 $ 9,331 Other-than-temporary impairment losses 386 1,246 Losses and loss adjustment expenses 3,154 986 Organizational costs 90 61 Stock-based compensation 2,455 3,388 Accrued expenses — 35 Unearned revenue 339 489 State net operating losses 333 — State capital loss carryforwards 175 65 Bad debt reserve 2 3 Total deferred tax assets 12,687 15,604 Deferred tax liabilities: Property and equipment (1,517 ) (1,857 ) Intangible assets (1,541 ) (1,890 ) Deferred policy acquisition costs (4,365 ) (6,601 ) Unrealized net gain on available-for-sale (1,907 ) (1,659 ) Basis difference related to partnership investments (599 ) (5 ) Basis difference related to convertible senior notes (4,099 ) (2,519 ) Prepaid expenses (312 ) (412 ) Accrued expenses (37 ) — Other (200 ) (411 ) Total deferred tax liabilities (14,577 ) (15,354 ) Net deferred tax (liabilities) assets $ (1,890 ) $ 250 The Company has a state net operating loss carryforward of $7,665 for the 2017 tax year which will expire on December 31, 2037. In addition, the Company has state capital loss carryforwards of $1,926 and $1,826 for the 2016 and 2015 tax years, respectively. The 2015 capital loss carryforward is available for tax years up to and including the 2020 tax year. The 2016 capital loss carryforward is available for tax years up to and including the 2021 tax year. A valuation allowance is established if, based upon the relevant facts and circumstances, management believes any portion of the deferred tax assets will not be realized. Although realization of deferred income tax assets is not certain, management believes it is more likely than not that deferred tax assets will be realized. Thus, the Company did not have a valuation allowance established as of December 31, 2017 or 2016. The 2017 Tax Act implemented a mandatory one-time one-time one-time one-time

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Earnings Per Share	Note 18 — Earnings Per Share U.S. GAAP requires the Company to use the two-class A summary of the numerator and denominator of the basic and fully diluted (loss) earnings per common share is presented below: (Loss) Shares (a) Per Share Year Ended December 31, 2017 Net loss $ (6,893 ) Less: Loss attributable to participating securities 481 Basic and Diluted Loss Per Share: Loss available to common stockholders* $ (6,412 ) 8,558 $ (0.75 ) *  Stock options and convertible senior notes were excluded due to antidilutive effect.    Year Ended December 31, 2016 Net income $ 29,021 Less: Income attributable to participating securities (1,545 ) Basic Earnings Per Share: Income allocated to common stockholders 27,476 9,326 $ 2.95 Effect of Dilutive Securities: Stock options — 54 Convertible senior notes 4,244 1,493 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 31,720 10,873 $ 2.92 Year Ended December 31, 2015 Net income $ 65,861 Less: Income attributable to participating securities (3,398 ) Basic Earnings Per Share: Income allocated to common stockholders 62,463 9,602 $ 6.51 Effect of Dilutive Securities: Stock options — 102 Convertible senior notes 4,505 1,651 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 66,968 11,355 $ 5.90 (a)   Shares in thousands.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Stockholders' Equity	Note 19 — Stockholders’ Equity Common Stock In December 2017, the Company’s Board of Directors authorized a plan to repurchase up to $20,000 of the Company’s common shares before commissions and fees. The repurchase plan allows the Company to repurchase shares from time to time through December 31, 2018. 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. For each of the last two years, the Company’s Board of Directors authorized a one-year Series B Junior Participating Preferred Share Purchase Right In October 2013, the Company’s Board of Directors declared a dividend of one preferred share purchase right (“Right”) for each outstanding share of the Company’s common stock to shareholders of record at the close of business on November 15, 2013. Each Right entitled the common shareholder to purchase from the Company one one-hundredth one-hundredth The Right would not be exercisable until ten days following a public announcement that a person or group had acquired beneficial ownership of 10% or more of the Company’s common stock or until ten business days after a person or group began a tender or exchange offer that would result in beneficial ownership of 10% or more of the Company’s common stock. The Right could be redeemed or exchanged by the Company for $0.001 per Right at any time until the Right’s expiration date on October 18, 2018. On April 18, 2017, the Company’s Board of Directors terminated the Company’s shareholder rights plan by amending the Right’s expiration date to April 18, 2017. Share Repurchase Agreements In conjunction with the issuance of the 4.25% Convertible Notes as described in Note 13 — “Long-Term Debt” under Convertible Senior Notes Prepaid Share Repurchase Forward Contracts The Company has two outstanding prepaid share repurchase forward contracts, one of which was entered into with Deutsche Bank AG, London Branch in conjunction with the issuance of the 3.875% Convertible Notes. The other was entered into with Societe Generale in conjunction with the issuance of the 4.25% Convertible Notes as described in Note 13 — “Long-Term Debt” under Convertible Senior Notes Each forward contract is subject to early settlement, in whole or in part, at any time prior to the final settlement date at the option of each forward counterparty, as well as early settlement or settlement with alternative consideration in the event of certain corporate transactions. In the event the Company pays any cash dividends on its common shares, each forward counterparty will pay an equivalent amount to the Company. The shares to be purchased under the forward contracts will be treated as retired for financial statement purposes as of the effective date of each forward contract, but will remain outstanding for corporate law purposes, including for purposes of any future stockholders votes. The Company determined that each forward contract does not meet the characteristics of a derivative instrument and, as such, the transaction resulted in an immediate reduction of the outstanding shares used to calculate the weighted-average common shares outstanding for both basic and diluted (loss) earnings per share. Preferred Stock Series A Cumulative Convertible Preferred Stock As of December 31, 2017 and 2016, there were no Series A Cumulative Convertible Preferred Stock issued or outstanding. Series B Junior Participating Preferred Stock (“Series B Preferred”) In connection with the declaration of the Right dividends in 2013, the Company’s Board of Directors established and fixed the rights and preferences of the Series B Preferred. Of the authorized shares, the Company designated 400,000 shares as Series B Preferred. Each Series B Preferred will be entitled to a minimum preferential quarterly dividend payment of $1.00 per share but will be entitled to an aggregate dividend of 100 times the dividend declared per common share of the Company. In the event of liquidation, the holders of the Series B Preferred will be entitled to a minimum preferential liquidation payment of $100 per share but will be entitled to an aggregate payment of 100 times the payment made per common share. Each Series B Preferred will have 100 votes per share, voting together as one class on all matters submitted to a vote of shareholders of the Company. Finally, in the event of any merger, consolidation or other transaction in which common shares are exchanged, each Series B Preferred will be entitled to receive 100 times the amount received per common share. The aforementioned rights of Series B Preferred are protected by customary anti-dilution provisions. As of December 31, 2017 and 2016, there were no Series B Preferred issued or outstanding. Undesignated Preferred Stock The Company is authorized to issue up to an additional 18,100,000 shares of preferred stock, no par value. The authorized but unissued and undesignated preferred stock may be issued in one or more series and the shares of each series shall have such rights as determined by the Company’s Board of Directors subject to the rights of the holders of the Series A Cumulative Convertible Preferred Stock and Series B Preferred.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Note 20 — Stock-Based Compensation Incentive Plan The Company currently has outstanding stock-based awards granted under the 2007 Stock Option and Incentive Plan and the 2012 Omnibus Incentive Plan. Only the 2012 Plan is active and available for future grants. With respect to the 2012 Plan, the Company may grant stock-based awards to employees, directors, consultants, and advisors of the Company. On March 17, 2017, the Company’s board of directors amended the 2012 Omnibus Incentive Plan and reduced the number of shares reserved under the plan from 5,000,000 shares to 3,000,000 shares. At December 31, 2017, there were 1,995,655 shares available for grant. 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 years ended December 31, 2017, 2016 and 2015 is as follows (option amounts not in thousands): Number Weighted Weighted Aggregate Outstanding at January 1, 2015 230,000 $ 3.00 3.0 years $ 9,256 Exercised (120,000 ) $ 2.82 Outstanding at December 31, 2015 110,000 $ 3.19 2.3 years $ 3,482 Exercised (60,000 ) $ 2.50 Outstanding at December 31, 2016 50,000 $ 4.02 2.3 years $ 1,773 Granted 110,000 $ 40.00 Exercised (30,000 ) $ 2.50 Outstanding at December 31, 2017 130,000 $ 34.82 8.2 years $ 472 Exercisable at December 31, 2017 20,000 $ 6.30 3.7 years $ 472 The following table summarizes information about options exercised for the years ended December 31, 2017, 2016 and 2015 (option amounts not in thousands): 2017 2016 2015 Options exercised 30,000 60,000 120,000 Total intrinsic value of exercised options $ 1,319 $ 1,376 $ 4,551 Tax benefits realized $ 509 $ 501 $ 1,697 During the year ended December 31, 2015, a total of 120,000 options were exercised, of which 30,000 options were net settled by surrender of 2,013 shares. For the years ended December 31, 2017, 2016 and 2015, the Company recognized $306, $0 and $0, respectively, of compensation expense which was included in general and administrative personnel expenses. Deferred tax benefits related to stock options were $78, $0 and $0 for the years ended December 31, 2017, 2016 and 2015, respectively. At December 31, 2017 and 2016, there was $941 and $0, respectively, of unrecognized compensation expense related to nonvested stock options. The Company expects to recognize the remaining compensation expense over a weighted-average period of 3.0 years. The following table provides assumptions used in the Black-Scholes option-pricing model to estimate the fair value of the stock options granted during the year ended December 31, 2017: Expected dividend yield 3.53 % Expected volatility 42.86 % Risk-free interest rate 1.92 % Expected life (in years) 5 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 stock on the grant date. Information with respect to the activity of unvested restricted stock awards during the years ended December 31, 2017, 2016 and 2015 is as follows: Number of Weighted Nonvested at January 1, 2015 639,705 $ 28.33 Granted 83,260 $ 44.46 Vested (59,695 ) $ 30.13 Forfeited (42,757 ) $ 28.15 Nonvested at December 31, 2015 620,513 $ 30.33 Granted 142,440 $ 32.35 Vested (47,152 ) $ 42.27 Cancelled (160,000 ) $ 26.27 Forfeited (13,298 ) $ 39.06 Nonvested at December 31, 2016 542,503 $ 30.81 Granted 154,936 $ 42.92 Vested (75,983 ) $ 37.95 Forfeited (23,766 ) $ 36.32 Nonvested at December 31, 2017 597,690 $ 32.82 The Company recognized compensation expense related to restricted stock, which is included in general and administrative personnel expenses, of $4,217, $4,198 and $5,212 for the years ended December 31, 2017, 2016 and 2015, respectively. At December 31, 2017 and 2016, there was approximately $9,101 and $7,531, 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 32 months. The following table summarizes information about deferred tax benefits recognized and tax benefits realized related to restricted stock awards and paid dividends, and the fair value of vested restricted stock for the years ended December 31, 2017, 2016 and 2015. 2017 2016 2015 Deferred tax benefits recognized $ 970 $ 1,619 $ 1,453 Tax benefits realized for restricted stock and paid dividends $ 1,396 $ 140 $ 598 Fair value of vested restricted stock $ 2,884 $ 1,993 $ 1,798 During the years ended December 31, 2017, 2016 and 2015, no awards were issued with other than time-based vesting conditions.

Employee Benefit Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Employee Benefit Plan	Note 21 — Employee Benefit Plan The Company has a 401(k) Safe Harbor Profit Sharing Plan (“401(k) Plan”) that qualifies as a defined contribution plan under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating employees are eligible for company matching and discretionary profit sharing contributions. Plan participants may elect to defer up to one hundred percent of their pre-tax The Company also maintains benefit plans for its employees in India including a statutory post-employment benefit plan, or gratuity plan, providing defined, lump-sum

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 22 — Commitments and Contingencies Obligations under Multi-Year Reinsurance Contracts As of December 31, 2017, the Company has contractual obligations related to three multi-year reinsurance contracts. Two of these contracts have effective dates of June 1, 2016 and the other has an effective date of July 1, 2017. These contracts may be cancelled only with the other party’s consent. The table below presents the future minimum aggregate premiums amount payable to the reinsurers. Year 2018* $ 21,792 2019* 2,392 2020* 1,196 Total $ 25,380 * Premiums payable after December 31, 2017 under one contract are estimated. See Note 14 — “Reinsurance” for additional information. Lease Commitments The Company leases 15,000 square feet of office space in Noida, India. The lease has an initial term of nine years. The monthly rental payment, exclusive of applicable service tax, has increased by five percent every year since the end of the first year of the lease term. In addition, the Company had a lease for office space in Miami, Florida which expired February 28, 2018. Provided the leases are not early terminated, minimum future rental payments under operating leases after December 31, 2017 are as follows: Year Amount 2018 $ 147 2019 142 2020 150 2021 157 Total minimum future payments $ 596 Rental expense under all facility leases was $336, $333 and $304, respectively, during the years ended December 31, 2017, 2016 and 2015. Service Agreement In connection with the lease for office space in India as described in the “ Lease Commitments” Provided the agreement is not early terminated, minimum future payments under the service agreement after December 31, 2017 are as follows: Year Amount 2018 $ 24 2019 26 2020 27 2021 28 Total minimum future payments $ 105 Rental Income The Company leases available space at the Company’s headquarters and at its various investment properties to non-affiliates non-cancellable Year Amount 2018 $ 4,227 2019 4,073 2020 3,651 2021 3,048 2022 2,558 Thereafter 13,786 Total $ 31,343 Capital Commitment As described in Note 4 — “Investments” under Limited Partnership Investments

Quarterly Results of Operations

Quarterly Results of Operations	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations	Note 23 — Quarterly Results of Operations (Unaudited) The tables below summarize unaudited quarterly results of operations for 2017, 2016 and 2015. Three Months Ended 03/31/17 06/30/17 09/30/17 12/31/17 Net premiums earned $ 63,036 $ 61,847 $ 43,964 $ 55,771 Total revenue 67,713 67,580 47,490 61,623 Losses and loss adjustment expenses 25,529 27,665 89,231 23,204 Policy acquisition and other underwriting expenses 9,649 10,070 9,926 10,018 Interest expense 3,542 4,378 4,408 4,439 Total expenses 48,571 53,275 113,508 44,676 Income (loss) before income taxes 19,142 14,305 (66,018 ) 16,947 Net income (loss) 12,020 9,542 (40,546 ) 12,091 Comprehensive income (loss) 12,949 8,959 (38,792 ) 11,914 Earnings per share: Basic $ 1.27 $ 1.05 $ (4.44 ) $ 1.37 Diluted* $ 1.15 $ 0.93 $ (4.44 ) $ 1.14 * During the quarter ended September 30, 2017, the convertible senior notes and stock options were antidilutive. Three Months Ended 03/31/16 06/30/16 09/30/16 12/31/16 Net premiums earned $ 58,447 $ 58,528 $ 63,300 $ 63,352 Total revenue 60,747 61,520 69,808 72,371 Losses and loss adjustment expenses 27,080 26,272 25,909 45,406 Policy acquisition and other underwriting expenses 11,110 10,879 10,536 10,117 Interest expense 2,829 2,611 2,672 2,967 Total expenses 51,050 50,291 49,779 66,470 Income before income taxes 9,697 11,229 20,029 5,901 Net income 6,056 7,024 11,333 4,608 Comprehensive income 7,846 10,742 12,487 2,380 Earnings per share: Basic $ 0.60 $ 0.71 $ 1.17 $ 0.47 Diluted* $ 0.60 $ 0.71 $ 1.10 $ 0.47 * During the quarters ended March 31, 2016, June 30, 2016 and December 31, 2016, the convertible senior notes were antidilutive. Three Months Ended 03/31/15 06/30/15 09/30/15 12/31/15 Net premiums earned $ 81,728 $ 76,387 $ 62,765 $ 61,626 Total revenue 82,210 79,068 61,262 63,412 Losses and loss adjustment expenses 19,039 20,565 26,200 21,420 Policy acquisition and other underwriting expenses 9,799 10,443 10,675 11,067 Interest expense 2,661 2,679 2,698 2,716 Total expenses 41,164 43,485 49,324 45,787 Income before income taxes 41,046 35,583 11,938 17,625 Net income 25,378 22,022 7,371 11,090 Comprehensive income 27,009 19,856 5,023 11,516 Earnings per share: Basic $ 2.50 $ 2.17 $ 0.72 $ 1.12 Diluted $ 2.21 $ 1.93 $ 0.71 $ 1.05

Regulatory Requirements and Res

Regulatory Requirements and Restrictions	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Regulatory Requirements and Restrictions	Note 24 — Regulatory Requirements and Restrictions The Company has no restrictions on the payment of dividends to its shareholders except those restrictions imposed by the Florida Business Corporation Act and those restrictions imposed by insurance statutes and regulations applicable to the Company’s insurance subsidiaries. As of December 2017, without prior regulatory approval, $95,310 of the Company’s consolidated retained earnings was free from restriction under the insurance statutes and regulations and available for the payment of dividends in 2018. The following briefly describes certain related and other requirements and restrictions imposed by the states or jurisdiction in which the Company’s insurance subsidiaries are incorporated. Florida HCPCI and TypTap, which are domiciled in Florida, prepare their statutory financial statements in accordance with accounting principles and practices prescribed or permitted by the Florida Department of Financial Services, Office of Insurance Regulation, which Florida utilizes for determining solvency under the Florida Insurance Code (the “Code”). The commissioner of the FLOIR has the right to permit other practices that may deviate from prescribed practices. Prescribed statutory accounting practices are those practices that are incorporated directly or by reference in state laws, regulations, and general administrative rules applicable to all insurance enterprises domiciled in Florida. Permitted statutory accounting practices encompass all accounting practices that are not prescribed; such practices differ from state to state, may differ from entity to entity within a state, and may change in the future. The Code requires HCPCI to maintain capital and surplus equal to the greater of 10% of their respective liabilities or a statutory minimum as defined in the Code. TypTap, the Company’s insurance subsidiary organized in 2015, is subject to a consent order that requires TypTap to maintain minimum capital and surplus of $20,000 during each of the three years ending December 31, 2018. At December 31, 2017, HCPCI was required to maintain minimum capital and surplus of $25,900. At December 31, 2016, HCPCI was required to maintain minimum capital and surplus of $22,550. TypTap was approved by the FLOIR in January 2016. HCPCI and TypTap were in compliance with these requirements at December 31, 2017 and 2016. U.S. GAAP differs in certain respects from the accounting practices prescribed or permitted by insurance regulatory authorities (statutory-basis). These entities’ statutory-basis financial statements are presented on the basis of accounting practices prescribed or permitted by the FLOIR. The FLOIR has adopted the National Association of Insurance Commissioner’s (“NAIC”) Accounting Practices and Procedures Manual Since inception, HCPCI and TypTap, each has maintained a cash deposit with the Insurance Commissioner of the state of Florida, in the amount of $300, to meet regulatory requirements. Under Florida law, a domestic insurer may not pay any dividend or distribute cash or other property to its stockholders except out of that part of its available and accumulated capital and surplus funds which is derived from realized net operating profits on its business and net realized capital gains. A Florida domestic insurer may not make dividend payments or distributions to stockholders without prior approval of the FLOIR if the dividend or distribution would exceed the larger of (1) the lesser of (a) 10.0% of its capital surplus or (b) net income, not including realized capital gains, plus a two year carry forward, (2) 10.0% of capital surplus with dividends payable constrained to unassigned funds minus 25% of unrealized capital gains or (3) the lesser of (a) 10.0% of capital surplus or (b) net investment income plus a three year carry forward with dividends payable constrained to unassigned funds minus 25% of unrealized capital gains. Alternatively, a Florida domestic insurer may pay a dividend or distribution without the prior written approval of the FLOIR if (1) the dividend is equal to or less than the greater of (a) 10.0% of the insurer’s capital surplus as regards to policyholders derived from realized net operating profits on its business and net realized capital gains or (b) the insurer’s entire net operating profits and realized net capital gains derived during the immediately preceding calendar year, (2) the insurer will have policy holder capital surplus equal to or exceeding 115.0% of the minimum required statutory capital surplus after the dividend or distribution, (3) the insurer files a notice of the dividend or distribution with the FLOIR at least ten business days prior to the dividend payment or distribution and (4) the notice includes a certification by an officer of the insurer attesting that, after the payment of the dividend or distribution, the insurer will have at least 115% of required statutory capital surplus as to policyholders. Except as provided above, a Florida domiciled insurer may only pay a dividend or make a distribution (1) subject to prior approval by the FLOIR or (2) 30 days after the FLOIR has received notice of such dividend or distribution and has not disapproved it within such time. As a result, HCPCI was qualified to make dividend payments at December 31, 2017, 2016 and 2015. In addition, Florida property and casualty insurance companies are required to adhere to prescribed premium-to-capital Years Ended December 31, 2017 2016 2015 HCPCI: Gross 2.01 to 1 1.81 to 1 1.85 to 1 Net 1.11 to 1 1.07 to 1 1.00 to 1 TypTap: Gross 0.33 to 1 0.09 to 1 * Net 0.27 to 1 0.07 to 1 * * TypTap began operations in 2016. Bermuda The Bermuda Monetary Authority requires Claddaugh Casualty Insurance Company, Ltd. (“Claddaugh”), the Company’s Bermuda domiciled reinsurance subsidiary, to maintain minimum capital and surplus of $2,000. At December 31, 2017 and 2016, Claddaugh’s statutory capital and surplus was approximately $63,000 and $88,000, respectively. For the year ended December 31, 2017, Claddaugh reported a statutory net loss of approximately $5,200 in contrast with statutory net profits of approximately $13,200 and $9,900 for the years ended December 31, 2016 and 2015, respectively. During 2017, Claddaugh made a dividend payment of $20,000 to the Company. There were no cash dividends paid by Claddaugh during 2016 and 2015. HCPCI and TypTap are subject to risk-based capital (“RBC”) requirements as specified by the NAIC. Under those requirements, the amount of minimum capital and surplus maintained by a property and casualty insurance company is to be determined based on the various risks related to it. Pursuant to the RBC requirements, insurers having less statutory capital than required by the RBC calculation will be subject to varying degrees of regulatory action, depending on the level of capital inadequacy. At December 31, 2017 and 2016, the Company’s insurance subsidiaries individually exceeded any applicable minimum risk-based capital requirements and no corrective actions have been required. As of December 31, 2017, the combined statutory capital and surplus and minimum capital and surplus of the Company’s U.S. insurance subsidiaries were approximately $177,000 and $45,900, respectively. As of December 31, 2017 and 2016, restricted net assets represented by the Company’s insurance subsidiaries amounted to $180,286 and $148,999, respectively.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Note 25 — Related Party Transactions Claddaugh has a reinsurance agreement with Oxbridge Reinsurance Limited (“Oxbridge”) whereby a portion of the business assumed from the Company’s insurance subsidiary, HCPCI, is ceded by Claddaugh to Oxbridge. With respect to the period from June 1, 2015 through May 31, 2016, Oxbridge assumed $11,600 of the total covered exposure for $3,340 in premiums. With respect to the period from June 1, 2016 through May 31, 2017, Oxbridge assumed $6,000 of the total covered exposure for approximately $3,400 in premiums. With respect to the period from June 1, 2017 through May 31, 2018, Oxbridge assumed $7,400 of the total covered exposure for approximately $3,400 in premiums. See Note 14 — “Reinsurance” – which includes the amounts due from and paid by Oxbridge during the years ended December 31, 2017 and 2016 with respect to benefits accrued in connection with the Oxbridge agreements. 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 contract with Claddaugh. Trust assets may be withdrawn by Claddaugh, the trust beneficiary, in the event amounts are due under the Oxbridge reinsurance agreement. 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 During 2015, 2016 and January 2017, one of the Company’s directors was a partner at a law firm that performs certain of the Company’s corporate legal matters. He retired from the practice of law on January 31, 2017. Fees incurred with respect to this law firm for the month ended January 31, 2017 and years ended December 31, 2016 and 2015 were approximately $6, $32 and $50, respectively. In connection with the acquisition of Pineda Landings described in Note 6 — “Business Acquisition,” the Company incurred and paid $20 of legal fees in 2016 for services provided by a law firm that specializes in real estate transactions at which one immediate family member of the Company’s directors is employed.

Condensed Financial Information

Condensed Financial Information of HCI Group, Inc.	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Information of HCI Group, Inc.	Note 26 — Condensed Financial Information of HCI Group, Inc. Condensed financial information of HCI Group, Inc. is as follows: Balance Sheets December 31, 2017 2016 Assets Cash and cash equivalents $ 53,755 $ 2,297 Fixed-maturity securities, available for sale, at fair value 34,529 4,483 Equity securities, available for sale, at fair value 10,238 7,289 Equity securities, trading, at fair value 1,045 — Limited partnership investments, at equity 15,232 21,906 Note receivable – related party 7,280 — Investment in subsidiaries 310,779 411,398 Property and equipment, net 617 664 Income tax receivable 3,023 1,563 Other assets 1,019 940 Total assets $ 437,517 $ 450,540 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 4,499 $ 2,952 Deferred income taxes, net 2,511 949 Long-term debt 211,890 121,436 Due to related parties 24,642 81,457 Total liabilities 243,542 206,794 Total stockholders’ equity 193,975 243,746 Total liabilities and stockholders’ equity $ 437,517 $ 450,540 Statements of Income Years Ended December 31, 2017 2016 2015 Net investment income (loss) $ 2,799 $ 1,204 $ (2,401 ) Net realized gains 367 151 108 Net unrealized gains 92 — — Other-than-temporary impairment losses (209 ) (15 ) (75 ) Gain on repurchases of convertible senior notes — 153 — Other income — — 30 Loss on repurchases of senior notes (743 ) — — Interest expense (15,704 ) (10,346 ) (10,754 ) Operating expenses (5,489 ) (5,158 ) (7,346 ) Loss before income tax benefit and equity in income of subsidiaries (18,887 ) (14,011 ) (20,438 ) Income tax benefit 9,605 4,878 7,835 Net loss before equity in income of subsidiaries (9,282 ) (9,133 ) (12,603 ) Equity in income of subsidiaries 2,389 38,154 78,464 Net (loss) income $ (6,893 ) $ 29,021 $ 65,861 Statements of Cash Flows Years Ended December 31, 2017 2016 2015 Cash flows from operating activities: Net (loss) income $ (6,893 ) $ 29,021 $ 65,861 Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: Stock-based compensation 2,630 2,878 4,341 Net realized investment gains (367 ) (151 ) (108 ) Net unrealized investment gains (92 ) — — Amortization of premiums on investments in fixed-maturity securities 51 — 1 Depreciation and amortization 6,673 3,899 3,996 (Income) loss from limited partnership investments (1,354 ) (523 ) 3,277 Distributions from limited partnership interests 881 544 12 Other-than-temporary impairment losses 209 15 75 Gain on repurchases of convertible senior notes — (153 ) — Loss on repurchases of senior notes 743 — — Loss from disposal of property and equipment 17 — — Equity in income of subsidiaries (2,389 ) (38,154 ) (78,464 ) Deferred income taxes (4,224 ) (1,542 ) (3,218 ) Changes in operating assets and liabilities: Income taxes receivable (1,461 ) (1,563 ) 2,596 Other assets (106 ) (129 ) 228 Accrued expenses and other liabilities 1,544 (716 ) 689 Income taxes payable — (1,518 ) 1,279 Due to related parties (54,896 ) 60,075 (14,831 ) Net cash (used in) provided by operating activities (59,034 ) 51,983 (14,266 ) Cash flows from investing activities: Investment in limited partnership interest (4,611 ) (2,710 ) (19,956 ) Investment in note receivable – related party (7,280 ) — — Purchase of fixed-maturity securities (31,034 ) (371 ) (384 ) Purchase of equity securities, available for sale (8,939 ) (2,853 ) (3,196 ) Purchase of equity securities, trading (3,544 ) — — Purchase of property and equipment (306 ) (202 ) (371 ) Proceeds from sales of fixed-maturity securities 667 423 259 Proceeds from calls, repayments and maturities of fixed-maturity securities — 130 — Proceeds from sales of equity securities, available for sale 6,262 2,602 5,475 Proceeds from sales of equity securities, trading 2,624 — — Distributions from limited partnership interests 11,758 — — Dividends received from subsidiary 105,000 19,000 92,700 Investment in subsidiaries — (25,250 ) (78,536 ) Net cash provided by (used in) investing activities 70,597 (9,231 ) (4,009 ) Statements of Cash Flows (Continued) Years Ended December 31, 2017 2016 2015 Cash flows from financing activities: Repurchases of common stock (30,718 ) (464 ) (792 ) Repurchases of common stock under share repurchase plan (15,154 ) (20,026 ) (1,610 ) Repurchases of convertible senior notes — (11,347 ) — Repurchases of senior notes (40,250 ) — — Debt issuance costs paid (4,975 ) — — Cash dividends paid to stockholders (13,906 ) (12,438 ) (12,428 ) Cash dividends received under share repurchase forward contract 1,073 747 747 Proceeds from exercise of stock options 75 150 263 Proceeds from issuance of long-term debt 143,750 — — Tax benefits on stock-based compensation — 641 2,295 Net cash provided by (used in) financing activities 39,895 (42,737 ) (11,525 ) Net increase (decrease) in cash and cash equivalents 51,458 15 (29,800 ) Cash and cash equivalents at beginning of year 2,297 2,282 32,082 Cash and cash equivalents at end of year $ 53,755 $ 2,297 $ 2,282

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Note 27 — Subsequent Events On January 15, 2018, the Company’s Board of Directors declared a quarterly dividend of $0.35 per common share. The dividends are scheduled for payment on March 16, 2018 to stockholders of record on February 16, 2018. On January 26, 2018, Greenleaf Essence, LLC, a wholly own subsidiary and party to a joint venture which the Company consolidated as the primary beneficiary to its operations, purchased the interest of the noncontrolling member for $539. See Consolidated Variable Interest Entity Year Amount 2018 $ 116 2019 158 2020 163 2021 41 Total minimum future payments $ 478 On February 8, 2018, the Company granted 40,000 shares of restricted stock and options to purchase 110,000 of the Company’s common shares at an exercise price of $40 per share to its chief executive officer, Paresh Patel. The options will expire on February 8, 2028. These share-based awards were granted pursuant to the 2012 Plan and will vest in equal annual installments over four years, so long as Mr. Patel remains employed by the Company. The grant date fair values of the restricted stock and options were $1,397 and $939, respectively. On February 20, 2018, the Company entered into a subscription agreement with another limited partnership and committed to provide $5,000 of capital for investment. The capital is callable at the discretion of the general partner during a commitment period.

Summary of Significant Accoun36

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation.
Adoption of New Accounting Standards	Adoption of New Accounting Standards. Effective January 1, 2017, the Company adopted Accounting Standards Update No. 2016-09, In addition, The Company early adopted Accounting Standards Update No. 2017-01, Real Estate Investments
Principles of Consolidation	Principles of Consolidation. The Company has a 100% equity interest in one venture (treated as a joint venture under U.S. GAAP) that owns a commercial property in Riverview, Florida. The Company consolidates this joint venture as its primary beneficiary (see Consolidated Variable Interest Entity
Use of Estimates	Use of Estimates.
Business Acquisitions	Business Acquisitions. Before the adoption of Accounting Standards Update No. 2017-01, in-place in-place in-place After the adoption of the aforementioned guidance, the Company evaluates whether substantially all of the fair value of the gross assets acquired in a real estate transaction is concentrated in a single identifiable asset or group of similar identifiable assets. If such concentration is substantial, the transaction is accounted for as an asset acquisition. As a result, the cost of acquiring real estate is allocated to the individual assets based on the relative fair values of the individual assets. Acquisition related costs are capitalized and allocated among the assets acquired.
Cash and Cash Equivalents	Cash and Cash Equivalents.
Investments in Available-for-Sale Securities	Investments in Available-for-Sale Available-for-sale available-for-sale available-for-sale first-in first-out The Company reviews all securities for other-than-temporary impairment on a monthly basis. When the fair value of any investment is lower than its cost, an assessment is made to determine whether the decline is temporary or other-than-temporary. If the decline is determined to be other-than-temporary, the investment is written down to fair value and an impairment loss is recognized in income in the period in which the Company makes such determination. When reviewing impaired fixed-maturity securities, the Company considers its ability and intent to hold these securities and whether it is probable that the Company will be required to sell these securities prior to their anticipated recovery or maturity. For the fixed-maturity securities that the Company intends to sell or it is probable that the Company will have to sell before recovery or maturity, the unrealized losses are recognized as other-than-temporary losses in income. In instances where there are credit related losses associated with the impaired fixed-maturity securities for which the Company asserts that it does not have the intent to sell, and it is probable that the Company will not be required to sell until a market price recovery or maturity, the amount of the other-than-temporary impairment loss related to credit losses is recognized in income, and the amount of the other-than-temporary impairment loss related to other non-credit When determining impairment due to a credit related loss, the Company carefully considers factors such as the issuer’s financial ratios and condition, the security’s current ratings and maturity date, and overall market conditions in estimating the cash flows expected to be collected. The expected cash flows discounted at the effective interest rate of the security implicit at the date of acquisition is then compared with the security’s amortized cost at the measurement date. A credit loss is incurred when the present value of the expected cash flows is less than the security’s amortized cost. The Company considers various factors in determining whether an individual security is other-than-temporarily impaired (see Available-for-Sale
Investments in Trading Securities	Investments in Trading Securities. Trading Securities
Limited Partnership Investments	Limited Partnership Investments. Limited Partnership Investments Pursuant to U.S. GAAP, these limited partnerships which are private equity funds must measure their investments at fair value and reflect the unrealized gains and losses in the fair value of their investments on their statement of income. As a result, the carrying value of limited partnership investments at each reporting date approximates their estimated fair value.
Investment in Unconsolidated Joint Venture	Investment in Unconsolidated Joint Venture. When evidence indicates an impairment may occur, the Company evaluates whether a decline in value is other than temporary. Evidence may include continuing operating losses of the joint venture, a declining occupancy rate, a decrease in real estate value, and an oversupply of rental property in close vicinity to the investment property. Should available evidence indicate the recovery of the initial investment is less likely, the Company would compare the carrying value of the investment with its expected residual value and recognize an impairment loss in earnings.
Real Estate Investments	Real Estate Investments Prior to August 16, 2016, the Company was party to an Acquisition, Development and Construction loan agreement (“ADC Arrangement”) whereby the Company provided financing to a property developer for the construction of a retail shopping center. Because the Company expected to receive more than 50% of the residual profit from the ADC Arrangement which had characteristics similar to a real estate investment, the costs of the real estate project were capitalized and interest was recognized in net investment income. Real estate and the related depreciable assets are carried at cost, net of accumulated depreciation, which is included in net investment income and allocated over the estimated useful life of the asset using the straight-line method of depreciation. Land is not depreciated. Real estate is evaluated for impairment when events or circumstances indicate the carrying value of the real estate may not be recoverable.
Deferred Policy Acquisition Costs	Deferred policy acquisition costs. The method followed in computing DAC limits the amount of such deferred costs to their estimated realizable value, which gives effect to the gross premium earned, related investment income, unpaid losses and loss adjustment expenses and certain other costs expected to be incurred as the premium is earned. DAC is reviewed to determine if it is recoverable from future premium income, including investment income. If such costs are determined to be unrecoverable, they are expensed at the time of determination. The amount of DAC considered recoverable could be reduced in the near term if the estimates of total revenues discussed above are reduced or permanently impaired as a result of the disposition of a line of business. The amount of amortization of DAC could be revised in the near term if any of the estimates discussed above are revised.
Property and Equipment	Property and Equipment. internal-use
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets.
Intangible Assets	Intangible Assets.
Lease Acquisition Costs	Lease Acquisition Costs.
Long-Term Debt	Long-Term Debt. To determine the carrying values of the liability and equity components at issuance, the Company measures the fair value of a similar liability, including any embedded features other than the conversion option, and assigns such value to the liability component. The liability component’s fair value is then subtracted from the initial proceeds to determine the carrying value of the debt instrument’s equity component, which is included in additional paid-in capital. Any embedded feature other than the conversion option is evaluated at issuance to determine if it is probable that such embedded feature will be exercised. If the Company concludes that the exercisability of that embedded feature is not probable, the embedded feature is considered to be non-substantive and would not impact the initial measurement and expected life of the debt instrument’s liability component. Transaction costs related to issuing a debt instrument that embodies both liability and equity components are allocated to the liability and equity components in proportion to the allocation of the proceeds and accounted for as debt issuance costs and equity issuance costs, respectively. Debt issuance costs are capitalized and presented as a deduction from the carrying value of the debt. Both debt discount and deferred debt issuance costs are amortized to interest expense over the expected life of the debt instrument using the effective interest method. Equity issuance costs are a reduction to the proceeds allocated to the equity component.
Prepaid Share Repurchase Forward Contract	Prepaid Share Repurchase Forward Contract.
Losses and Loss Adjustment Expenses	Losses and Loss Adjustment Expenses. The estimates of unpaid losses and LAE are subject to trends in claim severity and frequency and are continually reviewed. As part of the process, the Company reviews historical data and considers various factors, including known and anticipated regulatory and legal developments, changes in social attitudes, inflation and economic conditions. As experience develops and other data becomes available, these estimates are revised, as required, resulting in increases or decreases to the existing unpaid losses and LAE. Adjustments are reflected in the results of operations in the period in which they are made and the liabilities may deviate substantially from prior estimates. Losses and LAE ceded to or recovered from reinsurers are recorded as a reduction to losses and LAE on the consolidated statement of income.
Advance Premiums	Advance Premiums Premium Revenue
Reinsurance	Reinsurance . st Certain of the Company’s current reinsurance contracts contain retrospective provisions including terms and conditions that adjust premiums, increase the amount of future coverage, or result in profit commissions based on the loss experience under the contracts. In such cases, a with-and-without received upon the expiration of the contracts. The Company receives ceding commissions from ceding gross written premiums to a third-party reinsurer under one flood quota share reinsurance contract. The ceding commissions represent the reimbursement of the Company’s policy acquisition, underwriting and other operating expenses. Ceding commissions received cover a portion of premium taxes and agent commissions capitalized by the Company and a portion of non-capitalized pro-rata
Reinsurance Recovered in Advance on Unpaid Losses	Reinsurance Recovered in Advance on Unpaid Losses.
Premium Revenue	Premium Revenue.
Policy Fees	Policy Fees.
Florida Insurance Guaranty Association Assessments	Florida Insurance Guaranty Association Assessments.
Foreign Currency	Foreign Currency.
Income Taxes	Income Taxes. tax-allocation The Company accounts for income taxes in accordance with U.S. GAAP, resulting in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term “more likely than not” means a likelihood of more than fifty percent; the terms “examined” and “upon examination” also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not more-likely-than-not
Fair Value of Financial Instruments	Fair Value of Financial Instruments.
Stock-Based Compensation	Stock-Based Compensation. paid-in-capital paid-in-capital paid-in-capital
Basic and Diluted Earnings (Loss) Per Common Share	Basic and diluted earnings (loss) per common share. “two-class
Statutory Accounting Practices	Statutory Accounting Practices.
Reclassifications	Reclassifications.

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2017
Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value of Available-for-Sale Securities	The Company holds investments in fixed-maturity securities and equity securities that are classified as available-for-sale. available-for-sale Cost or Gross Gross Estimated Value As of December 31, 2017 Fixed-maturity securities U.S. Treasury and U.S. government agencies $ 42,313 $ 1 $ (287 ) $ 42,027 Corporate bonds 106,897 1,110 (904 ) 107,103 State, municipalities, and political subdivisions 78,954 1,816 (75 ) 80,695 Exchange-traded debt 7,666 197 (204 ) 7,659 Total 235,830 3,124 (1,470 ) 237,484 Equity securities 53,132 6,280 (501 ) 58,911 Total available-for-sale $ 288,962 $ 9,404 $ (1,971 ) $ 296,395 As of December 31, 2016 Fixed-maturity securities U.S. Treasury and U.S. government agencies $ 1,975 $ — $ (36 ) $ 1,939 Corporate bonds 75,538 607 (1,641 ) 74,504 State, municipalities, and political subdivisions 78,018 776 (488 ) 78,306 Exchange-traded debt 11,463 36 (237 ) 11,262 Redeemable preferred stock 237 3 (3 ) 237 Total 167,231 1,422 (2,405 ) 166,248 Equity securities 47,750 5,769 (484 ) 53,035 Total available-for-sale $ 214,981 $ 7,191 $ (2,889 ) $ 219,283
Scheduled Contractual Maturities of Fixed-Maturity Securities	The scheduled contractual maturities of fixed-maturity securities at December 31, 2017 and 2016 are as follows: December 31, 2017 2016 Amortized Estimated Value Amortized Estimated Value Available-for-sale Due in one year or less $ 35,386 $ 35,364 $ 2,656 $ 2,662 Due after one year through five years 116,575 115,766 49,915 50,023 Due after five years through ten years 57,415 58,984 90,360 89,332 Due after ten years 26,454 27,370 24,300 24,231 $235,830 $237,484 $167,231 $166,248
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 Proceeds Gross Gross Year ended December 31, 2017 Fixed-maturity securities $ 31,759 $ 2,176 $ (181 ) Equity securities $ 42,657 $ 3,882 $ (1,565 ) Year ended December 31, 2016 Fixed-maturity securities $ 40,454 $ 604 $ (79 ) Equity securities $ 23,127 $ 2,656 $ (580 ) Year ended December 31, 2015 Fixed-maturity securities $ 53,711 $ 253 $ (470 ) Equity securities $ 25,695 $ 1,327 $ (1,718 )
Rollforward of Cumulative Credit Losses in Other-Than-Temporary Impairments Recognized in Income for Available for Sale Fixed-Maturity Securities	The following table presents a rollforward of the cumulative credit losses in other-than-temporary impairments recognized in income for available for sale fixed-maturity securities: 2017 2016 2015 Balance at January 1 $ 475 $ 111 $ — Credit impairments on impaired securities — 475 111 Additional credit impairments on previously impaired securities — 293 — Credit impaired security fully disposed of for which there was no prior intent or requirement to sell (475 ) (385 ) — Reduction due to increase in expected cash flows recognized over the remaining life of the previously impaired security — (19 ) — Balance at December 31 $ — $ 475 $ 111
Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category	Securities with gross unrealized loss positions at December 31, 2017 and 2016, aggregated by investment category and length of time the individual securities have been in a continuous loss position, are as follows: Less Than Twelve Months Twelve Months or Longer Total As of December 31, 2017 Gross Estimated Value Gross Estimated Gross Estimated Value Fixed-maturity securities U.S. Treasury and U.S. government agencies $ (246 ) $ 40,587 $ (41 ) $ 1,938 $ (287 ) $ 42,525 Corporate bonds (174 ) 40,627 (730 ) 30,563 (904 ) 71,190 State, municipalities, and political subdivisions (30 ) 9,775 (45 ) 2,297 (75 ) 12,072 Exchange-traded debt (203 ) 2,481 (1 ) 36 (204 ) 2,517 Total fixed-maturity securities (653 ) 93,470 (817 ) 34,834 (1,470 ) 128,304 Equity securities (449 ) 12,812 (52 ) 1,440 (501 ) 14,252 Total available-for-sale $ (1,102 ) $ 106,282 $ (869 ) $ 36,274 $ (1,971 ) $ 142,556 At December 31, 2017, there were 135 securities in an unrealized loss position. Of these securities, 22 securities had been in an unrealized loss position for 12 months or longer. Less Than Twelve Twelve Months or Total As of December 31, 2016 Gross Estimated Gross Estimated Gross Estimated Fixed-maturity securities U.S. Treasury and U.S. government agencies $ (36 ) $ 1,939 $ — $ — $ (36 ) $ 1,939 Corporate bonds (1,546 ) 43,859 (95 ) 2,814 (1,641 ) 46,673 State, municipalities, and political subdivisions (441 ) 26,029 (47 ) 3,036 (488 ) 29,065 Exchange-traded debt (191 ) 4,980 (46 ) 1,954 (237 ) 6,934 Redeemable preferred stock (3 ) 47 — — (3 ) 47 Total fixed-maturity securities (2,217 ) 76,854 (188 ) 7,804 (2,405 ) 84,658 Equity securities (293 ) 10,042 (191 ) 3,209 (484 ) 13,251 Total available-for-sale $ (2,510 ) $ 86,896 $ (379 ) $ 11,013 $ (2,889 ) $ 97,909
Summary of Proceeds Received, and The Gross Realized Gains and Losses From Sales of Trading Equity Securities	Proceeds received, and the gross realized gains and losses from sales of trading equity securities, for the year ended December 31, 2017 were as follows: Proceeds Gross Gross Year ended December 31, 2017 Equity securities $ 2,625 $ 111 $ (77 )
Schedule of Company's Investments in Limited Partnerships	The following table provides information related to the Company’s investments in limited partnerships: December 31, 2017 December 31, 2016 Investment Strategy Carrying Unfunded (%)(a) Carrying Unfunded (%)(a) Primarily in senior secured loans and, to a limited extent, in other debt and equity securities of private U.S. lower-middle-market companies. (b)(c)(e) $ 7,276 $ 5,505 15.37 $ 6,246 $ 6,428 16.50 Value creation through active distressed debt investing primarily in bank loans, public and private corporate bonds, asset-backed securities, and equity securities received in connection with debt restructuring. (b)(d)(e) 7,951 1,745 1.76 7,358 1,360 1.76 Maximum long-term capital appreciation through long and short positions in equity and/or debt securities of publicly traded U.S. and non-U.S. — — — 11,333 — 66.58 High returns and long-term capital appreciation through investments in the power, utility and energy industries, and in the infrastructure sector. (b)(g)(h) 7,509 2,512 0.18 4,326 5,766 0.18 Value-oriented investments in less liquid and mispriced senior and junior debts of private equity-backed companies. (b)(i)(j) 448 4,566 0.47 — — — Total $ 23,184 $ 14,328 $ 29,263 $ 13,554 (a) Represents the Company’s percentage investment in the fund at each balance sheet date. (b) Except under certain circumstances, withdrawals from the funds or any assignments are not permitted. Distributions, except income from late admission of a new limited partner, will be received when underlying investments of the funds are liquidated. (c) Expected to have a 10-year (d) Expected to have a three-year term from the end of the capital commitment period, which is March 31, 2018. (e) At the fund manager’s discretion, the term of the fund may be extended for up to two additional one-year (f) The withdrawal was effective on February 15, 2017. As a result, the Company’s investment in this limited partnership was terminated. (g) Expected to have a 10-year (h) With the consent of a super majority of partners, the term of the fund may be extended for up to three additional one-year (i) Expected to have a six-year one-year (j) Unless extended or terminated for reasons specified in the agreement, the capital commitment is expected to expire on December 1, 2018.
Summary of Unaudited Financial Information and Unaudited Financial Position	The following tables provide FMJV’s summarized unaudited financial results and the unaudited financial positions: Years Ended December 31, 2017 2016 2015 Operating results: Total revenues $ 331 $ — $ 118 Total expenses 483 — 257 Net loss $ (152 ) $ — $ (139 ) The Company’s share of net loss (a) $ (234 ) $ — $ (125 ) (a) Included in net investment income in the Company’s consolidated statements of income. Gain from the sale of the outparcel during 2017 was allocated in accordance with the method specified in the operating agreement. December 31, 2017 2016 Balance Sheet: Construction in progress—real estate $ 27 $ 334 Property and equipment, net 1,199 1,654 Cash 236 179 Other 5 180 Total assets $ 1,467 $ 2,347 Accounts payable $ $ 11 Other liabilities 18 — Members’ capital 1,449 2,336 Total liabilities and members’ capital $ 1,467 $ 2,347 Investment in unconsolidated joint venture, at equity* $ 1,304 $ 2,102 * Included the 90% share of FMKT Mel JV’s operating results.
Summary of Real Estate Investment	Real estate investments consist of the following as of December 31, 2017 and 2016: December 31, 2017 2016 Land $ 26,315 $ 17,592 Land improvements 9,904 9,336 Building 21,284 16,154 Tenant and leasehold improvements 1,204 872 Construction in progress* — 3,404 Other 3,050 2,683 Total, at cost 61,757 50,041 Less: accumulated depreciation and amortization (3,399 ) (1,955 ) Real estate investments $ 58,358 $ 48,086 * This project, which was developed by the Company’s consolidated variable interest entity, was completed in July 2017. The capitalized costs were reclassified to land, land improvement, and building.
Investment (Loss) Income Summarized	Net investment income (loss), by source, is summarized as follows: Years Ended December 31, 2017 2016 2015 Available-for-sale Fixed-maturity securities $ 5,689 $ 4,589 $ 3,935 Equity securities 3,318 3,452 3,710 Investment expense (726 ) (651 ) (673 ) Limited partnership investments 2,334 1,207 (3,244 ) Real estate investments (1,018 ) (592 ) (343 ) Loss from unconsolidated joint venture (234 ) — (125 ) Cash and cash equivalents 2,069 1,036 661 Other 7 46 57 Net investment income $ 11,439 $ 9,087 $ 3,978
Variable Interest Entity [Member]
Summary of Unaudited Financial Information and Unaudited Financial Position	The following table summarizes the assets and liabilities related to this variable interest entity which are included in the accompanying consolidated balance sheets. December 31, 2017 2016 Cash and cash equivalents $ — $ 65 Construction in progress included in real estate investments $ — $ 3,404 Real estate investments $ 4,680 $ — Other assets $ 152 $ — Accrued expenses $ 21 $ 68 Other liabilities $ 160 $ 11
Limited Partnership [Member]
Summary of Unaudited Financial Information and Unaudited Financial Position	The following is the aggregated summarized unaudited financial information of limited partnerships included in the investment strategy table above, which in certain cases is presented on a three-month lag due to the unavailability of information at the Company’s respective balance sheet dates. In applying the equity method of accounting, the Company uses the most recently available financial information provided by the general partner of each of these partnerships. The financial statements of these limited partnerships are audited annually. Years Ended December 31, 2017 2016 2015 Operating results: Total income $ 409,169 $ 310,998 $ 4,350 Total expenses 105,281 185,126 77,508 Net income (loss) $ 303,888 $ 125,872 $ (73,158 ) December 31, 2017 2016 Balance Sheet: Total assets $ 4,381,321 $ 2,956,327 Total liabilities $ 382,310 $ 63,813

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Schedule of Components of Other Comprehensive Income or Loss and Related Tax Effects Allocated to Each Component	The components of other comprehensive income or loss and the related tax effects allocated to each component were as follows: Year Ended December 31, 2017 Before Income Tax Net of Unrealized gain arising during the period $ 5,996 $ 2,313 $ 3,683 Other-than-temporary impairment loss 1,467 566 901 Call and repayment losses charged to investment income 14 5 9 Reclassification adjustment for realized gains (4,346 ) (1,676 ) (2,670 ) Total other comprehensive income $ 3,131 $ 1,208 $ 1,923 Year Ended December 31, 2016 Before Income Tax Net of Unrealized gain arising during the period $ 7,317 $ 2,823 $ 4,494 Other-than-temporary impairment loss 2,482 957 1,525 Call and repayment losses charged to investment income 20 8 12 Reclassification adjustment for realized gains (2,601 ) (1,004 ) (1,597 ) Total other comprehensive income $ 7,218 $ 2,784 $ 4,434 Year Ended December 31, 2015 Before Income Tax Net of Unrealized loss arising during the period $ (9,366 ) $ (3,613 ) $ (5,753 ) Other-than-temporary impairment loss 4,681 1,806 2,875 Call and repayment losses charged to investment income 77 29 48 Reclassification adjustment for realized losses 608 235 373 Total other comprehensive loss $ (4,000 ) $ (1,543 ) $ (2,457 )

Business Acquisitions (Tables)

Business Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2017
Sorrento Hills Village - Sorrento, Florida [Member]
Allocation of Purchase Price to Net Assets Acquired Based on their Fair Values at the Acquisition Date	The table below presents an allocation of the purchase price to the net assets acquired based on their fair values at the acquisition date: Identifiable assets acquired and liabilities assumed: Cash $ 194 Land 1,600 Land improvements 3,045 Buildings 7,120 Intangibles 2,580 Tenant improvements 76 Building improvement 29 Other assets 33 Other liabilities (356 ) Total net assets acquired 14,321 Less: Gain on bargain purchase (2,071 ) Purchase price $ 12,250
Pineda Landings - Melbourne, Florida [Member]
Allocation of Purchase Price to Net Assets Acquired Based on their Fair Values at the Acquisition Date	The table below presents the fair values of the net assets acquired at the acquisition date: Identifiable assets acquired and liabilities assumed: Cash $ 502 Land 2,857 Land improvements 4,671 Buildings 5,480 Intangibles 2,619 Tenant improvements 403 Building improvement 403 Other property and equipment 17 Other assets 940 Construction loan (8,214 ) Other liabilities (550 ) Total net assets acquired 9,128 Less: Carrying value of 90% equity method investment (2,859 ) Gain on remeasurement of previously held interest (4,005 ) Payable to the 10% joint venture partner (200 ) Cash paid to the 10% joint venture partner $ 2,064

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Components of Long-Term Debt and Methods Used in Estimating Fair Values	The following table summarizes components of the Company’s long-term debt and methods used in estimating their fair values: Maturity Valuation Methodology 8% Senior Notes * Closing price listed on the New York Stock Exchange 3.875% Convertible Senior Notes 2019 Quoted price at January 3, 2018; Discounted cash flow method/Level 3 inputs at December 31, 2016 4.25% Convertible Senior Notes 2037 Quoted price 3.95% Promissory Note 2020 Discounted cash flow method/Level 3 inputs 4% Promissory Note 2031 Discounted cash flow method/Level 3 inputs 3.75% Promissory Note 2036 Discounted cash flow method/Level 3 inputs * Redeemed on April 3, 2017.
Assets Measured at Estimated Fair Value on a Recurring Basis	The following tables present information about the Company’s financial assets measured at estimated fair value on a recurring basis. The table indicates the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of December 31, 2017 and 2016: Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2017 Financial Assets: Cash and cash equivalents $ 255,884 $ — $ — $ 255,884 Fixed-maturity securities: U.S. Treasury and U.S. government agencies 40,527 1,500 — 42,027 Corporate bonds 106,109 994 — 107,103 State, municipalities, and political subdivisions — 80,695 — 80,695 Exchange-traded debt 7,659 — — 7,659 Total fixed-maturity securities 154,295 83,189 — 237,484 Equity securities 58,911 — — 58,911 Total available-for-sale 213,206 83,189 — 296,395 Trading equity securities 1,045 — — 1,045 Total $ 470,135 $ 83,189 $ — $ 553,324 Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2016 Financial Assets: Cash and cash equivalents $ 280,531 $ — $ — $ 280,531 Fixed-maturity securities: U.S. Treasury and U.S. government agencies 1,939 — — 1,939 Corporate bonds 73,519 985 — 74,504 State, municipalities, and political subdivisions — 78,306 — 78,306 Exchange-traded debt 11,262 — — 11,262 Redeemable preferred stock 237 — — 237 Total fixed-maturity securities 86,957 79,291 — 166,248 Equity securities 53,035 — — 53,035 Total available-for-sale 139,992 79,291 — 219,283 Total $ 420,523 $ 79,291 $ — $ 499,814
Schedule of Fair Value Information for Financial Assets and Liabilities Carried on Balance Sheet	The following tables present fair value information for assets and liabilities that are carried on the balance sheet at amounts other than fair value as of December 31, 2017 and 2016: Carrying Fair Value Measurements Using Estimated Value (Level 1) (Level 2) (Level 3) Fair Value As of December 31, 2017 Financial Assets: Limited partnership investments $ 23,184 $ — $ — $ 23,184 $ 23,184 Financial Liabilities: Long-term debt: 3.875% Convertible senior notes $ 85,436 $ — $ 90,827 $ — $ 90,827 4.25% Convertible senior notes 126,454 — 124,444 — 124,444 3.95% Promissory note 9,270 — — 7,894 7,894 4% Promissory note 8,206 — — 7,820 7,820 3.75% Promissory note 8,469 — — 9,227 9,227 Total long-term debt $ 237,835 $ — $ 215,271 $ 24,941 $ 240,212 Carrying Fair Value Measurements Using Estimated Value (Level 1) (Level 2) (Level 3) Fair Value As of December 31, 2016 Financial Assets: Limited partnership investments $ 29,263 $ — $ — $ 29,263 $ 29,263 Financial Liabilities: Revolving credit facility $ 9,463 $ — $ — $ 9,463 $ 9,463 Long-term debt: 8% Senior notes $ 39,448 $ — $ 41,618 $ — $ 41,618 3.875% Convertible senior notes 81,988 — — 84,696 84,696 4% Promissory note 8,660 — — 8,664 8,664 3.75% Promissory note 8,767 — — 8,506 8,506 Total long-term debt $ 138,863 $ — $ 41,618 $ 101,866 $ 143,484

Deferred Policy Acquisition C41

Deferred Policy Acquisition Costs (Tables)	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Summary of Activity with Respect to Deferred Policy Acquisition Costs	The following table summarizes the activity with respect to deferred policy acquisition costs: December 31, 2017 2016 Beginning balance $ 16,639 $ 18,602 Policy acquisition costs deferred 35,736 35,905 Amortization (35,663 ) (37,868 ) Ending balance $ 16,712 $ 16,639

Property and Equipment, net (Ta

Property and Equipment, net (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consists of the following: December 31, 2017 2016 Land $ 1,642 $ 1,642 Building 7,952 7,932 Computer hardware and software 3,964 2,294 Office furniture and equipment 2,014 1,940 Tenant and leasehold improvements 3,320 3,250 Other 1,387 940 Total, at cost 20,279 17,998 Less:accumulated depreciation and amortization (7,814 ) (6,624 ) Property and equipment, net $ 12,465 $ 11,374

Intangible Assets, net (Tables)

Intangible Assets, net (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Details of Intangible Assets	The Company’s intangible assets, net consist of the following: December 31, 2017 2016 Anchor tenants relationships $ 1,761 $ 1,761 In-place 3,806 3,214 Total, at cost 5,567 4,975 Less: accumulated amortization (572 ) (76 ) Intangible assets, net $ 4,995 $ 4,899
Schedule of Amortization Expense for Intangible Assets	Amortization expense for intangible assets after December 31, 2017 is as follows: Year Amount 2018 $ 604 2019 604 2020 597 2021 493 2022 419 Thereafter 2,278 Total $ 4,995

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Summary of Other Assets	The following table summarizes the Company’s other assets: December 31, 2017 2016 Benefits receivable related to retrospective reinsurance contracts $ 2,393 $ 5,810 Prepaid expenses 1,741 1,581 Lease acquisition costs, net 723 641 Restricted cash 809 600 Other 4,884 2,710 Total other assets $ 10,550 $ 11,342

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Summary of Long-term Debt	The following table summarizes the Company’s long-term debt: December 31, 2017 2016 8% Senior Notes, redeemed in April 2017 $ — $ 40,250 3.875% Convertible Senior Notes, due March 15, 2019 89,990 89,990 4.25% Convertible Senior Notes, due March 1, 2037 143,750 — 3.95% Promissory note, due through February 17, 2020 9,360 — 4% Promissory note, due through February 1, 2031 8,348 8,821 3.75% Promissory note, due through September 1, 2036 8,613 8,924 Total principal amount 260,061 147,985 Less: unamortized discount and issuance costs (22,226 ) (9,122 ) Total long-term debt $ 237,835 $ 138,863
Summary of Future Maturities of Long-Term Debt	The following table summarizes future maturities of long-term debt as of December 31, 2017, which takes into consideration the assumption that the 4.25% Convertible Senior Notes are repurchased at the earliest call date. Year 2018 $ 1,049 2019 91,081 2020 9,761 2021 916 2022 144,702 Thereafter 12,552 Total $ 260,061
Schedule of Interest Expense Related to Long-Term Debt	Information with respect to interest expense related to long-term debt is as follows: Years Ended December 31, 2017 2016 2015 Interest Expense: Contractual interest $ 10,424 $ 7,315 $ 7,211 Non-cash 6,404 3,529 3,543 Capitalized interest (b) (61 ) — — Total $ 16,767 $ 10,844 $ 10,754 (a) Represents amortization of debt discount and issuance costs. (b) Interest was capitalized for a construction project in Riverview, Florida which is intended for lease.
Summary of Principal and Interest Payment Terms of Convertible Senior Notes	The following table summarizes the principal and interest payment terms of these Convertible Senior Notes: Convertible Senior Notes Interest Payment Terms 3.875% Convertible Notes, due March 15, 2019 Semiannually in arrears: March 15 and September 15 4.25% Convertible Notes, due March 1, 2037 Semiannually in arrears: March 1 and September 1
Summary of Equity and Liability Components of the Convertible Senior Notes	The following table summarizes information regarding the equity and liability components of the Convertible Senior Notes: December 31, 2017 2016 Principal amount $ 233,740 $ 89,990 Unamortized discount (17,354 ) (6,795 ) Liability component – net carrying value before issuance costs $ 216,386 $ 83,195 Equity component – conversion, net of offering costs $ 31,051 $ 15,900

Reinsurance (Tables)

Reinsurance (Tables)	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Impact of the Reinsurance Treaties on Premiums Written and Earned	The impact of the reinsurance treaties on premiums written and earned is as follows: Years Ended December 31, 2017 2016 2015 Premiums Written: Direct $ 346,188 $ 352,803 $ 393,009 Assumed 1,158 14,388 3,329 Gross written 347,346 367,191 396,338 Ceded (133,635 ) (135,051 ) (140,614 ) Net premiums written $ 213,711 $ 232,140 $ 255,724 Premiums Earned: Direct $ 347,235 $ 372,699 $ 360,878 Assumed 11,018 5,979 62,242 Gross earned 358,253 378,678 423,120 Ceded (133,635 ) (135,051 ) (140,614 ) Net premiums earned $ 224,618 $ 243,627 $ 282,506

Losses and Loss Adjustment Ex47

Losses and Loss Adjustment Expenses (Tables)	12 Months Ended
	Dec. 31, 2017
Insurance [Abstract]
Liability for Losses and Loss Adjustment Expenses	Activity in the liability for losses and LAE is summarized as follows: Years Ended December 31, 2017 2016 2015 Gross balance, beginning of year $ 70,492 $ 51,690 $ 48,908 Incurred, net of reinsurance, related to: Current year 146,922 104,128 78,325 Prior years 18,707 20,539 8,899 Total incurred, net of reinsurance 165,629 124,667 87,224 Paid, net of reinsurance, related to: Current year (87,770 ) (64,812 ) (51,095 ) Prior years (50,533 ) (41,053 ) (33,347 ) Total paid, net of reinsurance (138,303 ) (105,865 ) (84,442 ) Net balance, end of year 97,818 70,492 51,690 Add: reinsurance recoverable 100,760 — — Gross balance, end of year $ 198,578 $ 70,492 $ 51,690
Schedule of Incurred and Paid Claims Development	The following is information about incurred and paid claims development as of December 31, 2017, net of reinsurance, as well as cumulative claim frequency and the total of incurred-but-not-reported Homeowners Multi-peril and Dwelling Fire Insurance (a) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Net of Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2012 $ 66,425 $ 62,742 $ 64,083 $ 66,505 $ 67,058 $ 66,465 $ 155 6,617 2013 — 67,579 69,932 69,906 72,020 71,604 540 7,003 2014 — — 75,810 81,773 84,917 88,054 2,350 7,649 2015 — — — 78,017 90,902 96,173 4,398 7,627 2016 — — — — 81,446 90,878 12,840 6,863 2017 — — — — — 91,443 37,388 5,325 Total $ 504,617 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2012 $ 36,914 $ 53,225 $ 59,041 $ 62,836 $ 64,667 $ 65,903 2013 — 40,240 57,374 64,257 68,106 70,224 2014 — — 47,650 68,897 77,712 82,463 2015 — — — 50,939 76,042 87,784 2016 — — — — 51,663 73,037 2017 — — — — — 43,039 Total $ 422,450 All outstanding liabilities before 2012, net of 538 Liabilities for losses and loss adjustment, net of $ 82,705 (a) Excludes losses from Wind-only insurance (2012 through 2017), any hurricane event prior to 2017 and Hurricane Irma (2017). (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Homeowners Wind-only Insurance (a) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2015 $ — $ — $ — $ 308 $ 401 $ 569 $ 2 100 2016 — — — — 1,005 1,314 41 228 2017 — — — — — 1,528 866 144 Total $ 3,411 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2015 $ — $ — $ — $ 156 $ 332 $ 464 2016 — — — — 689 1,155 2017 — — — — — 484 Total $ 2,103 All outstanding liabilities before 2012, — Liabilities for losses and loss $ 1,308 * The Company began writing Homeowners Wind-only insurance in 2015. (a) Excludes losses from multi-peril and dwelling fire insurance (2012 through 2017), any hurricane event prior to 2017 and Hurricane Irma (2017). (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Losses Specific to Any Hurricane Event prior to 2017 As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2016 $ — $ — $ — $ — $ 21,414 $ 24,126 $ 3,435 2,410 2017 — — — — — 171 — 113 Total $ 24,297 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2016 $ — $ — $ — $ — $ 12,227 $ 20,025 2017 — — — — — 163 Total $ 20,188 All outstanding liabilities before 2012, — Liabilities for losses and loss $ 4,109 (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event Losses Specific to Hurricane Irma (2017) As of December 31, 2017 Total of IBNR on Reported Claims Cumulative (Not in Dollar Amounts)(b) Incurred Claims and Allocated Claim Adjustment Expenses, Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2017 $ — $ — $ — $ — $ — $ 53,430 $ 9,614 17,862 Total $ 53,430 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance Accident Year For the Years Ended December 31, 2012 2013 2014 2015 2016 2017 2017 $ — $ — $ — $ — $ — $ 43,742 Total $ 43,742 All outstanding liabilities before 2012, — Liabilities for losses and loss adjustment, $ 9,688 (b) The cumulative number of reported claims is measured as the number of per-policyholder, per-event
Reconciliation of Net Incurred and Paid Loss Development Tables to Liability for Losses and Loss Adjustment Expenses	The reconciliation of the net incurred and paid loss development tables to the liability for losses and loss adjustment expenses is as follows: December 31, Net outstanding liabilities Homeowners multi-peril and dwelling fire insurance $ 82,705 Homeowners Wind-only insurance 1,308 Losses specific to any hurricane prior to 2017 4,109 Losses specific to Hurricane Irma (2017) 9,688 Other short-duration insurance lines 8 Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance 97,818 Reinsurance recoverables 100,760 Total gross liability for unpaid losses and loss adjustment expenses $ 198,578
Supplementary and Unaudited Information about Average Historical Claims Duration	The following is supplementary and unaudited information about average historical claims duration as of December 31, 2017: Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance Years 1 2 3 4 5 6 Homeowners multi-peril and dwelling fire insurance 53.8 % 24.4 % 10.1 % 5.5 % 2.9 % 1.9 % Homeowners Wind-only insurance 37.2 % 33.2 % 8.7 % * * * Losses specific to any hurricane prior to 2017 51.0 % 32.3 % — — — — Losses specific to Hurricane Irma (2017) 81.9 % — — — — — * The Company began writing Homeowners Wind-only insurance in 2015.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Summary of Segment Information Reconciled to Consolidated Statements of Income	The following tables present segment information reconciled to the Company’s consolidated statements of income. Intersegment transactions are not eliminated from segment results. However, intracompany transactions are eliminated in segment results below. For the Year Ended December 31, 2017 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 224,618 $ — $ — $ — $ 224,618 Net investment income 9,898 6 2,974 (1,439 ) 11,439 Net realized investment gains 3,978 — 368 — 4,346 Net unrealized investment gains — — 92 — 92 Net other-than-temporary impairment losses (1,258 ) — (209 ) — (1,467 ) Policy fee income 3,622 — — — 3,622 Other 693 7,046 4,417 (10,400 ) 1,756 Total revenue 241,551 7,052 7,642 (11,839 ) 244,406 Expenses: Losses and loss adjustment expenses 165,629 — — — 165,629 Amortization of deferred policy acquisition costs 35,663 — — — 35,663 Interest expense — 1,250 15,704 (187 ) 16,767 Loss on repurchases of senior notes — — 743 — 743 Depreciation and amortization 128 2,121 939 (1,950 ) 1,238 Other 27,547 4,022 18,123 (9,702 ) 39,990 Total expenses 228,967 7,393 35,509 (11,839 ) 260,030 Income (loss) before income taxes $ 12,584 $ (341 ) $ (27,867 ) $ — $ (15,624 ) Total revenue from non-affiliates(c) $ 241,551 $ 5,525 $ 6,958 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation. For the Year Ended December 31, 2016 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 243,627 $ — $ — $ — $ 243,627 Net investment income (loss) 8,440 18 1,162 (533 ) 9,087 Net realized investment gains 2,450 — 151 — 2,601 Net other-than-temporary impairment losses (2,467 ) — (15 ) — (2,482 ) Policy fee income 3,914 — — — 3,914 Gain on repurchases of convertible senior notes — — 153 — 153 Gain on bargain purchase — 2,071 — — 2,071 Gain on remeasurement of previously held interest — 4,005 — — 4,005 Other 684 4,505 4,104 (7,823 ) 1,470 Total revenue 256,648 10,599 5,555 (8,356 ) 264,446 Expenses: Losses and loss adjustment expenses 124,667 — — — 124,667 Amortization of deferred policy acquisition costs 37,868 — — — 37,868 Interest expense — 561 10,518 — 11,079 Depreciation and amortization 158 814 908 (608 ) 1,272 Other operating expenses 31,351 2,921 16,180 (7,748 ) 42,704 Total expenses 194,044 4,296 27,606 (8,356 ) 217,590 Income (loss) before income taxes $ 62,604 $ 6,303 $ (22,051 ) $ — $ 46,856 Total revenue from non-affiliates(c) $ 256,648 $ 9,072 $ 5,470 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation. For the Year Ended December 31, 2015 Insurance Real Corporate/ Reclassification/ Consolidated Revenue: Net premiums earned $ 282,506 $ — $ — $ — $ 282,506 Net investment income (loss) 6,841 5 (1,971 ) (897 ) 3,978 Net realized investment (losses) gains (716 ) — 108 — (608 ) Net other-than-temporary impairment losses (4,606 ) — (75 ) — (4,681 ) Policy fee income 3,496 — — — 3,496 Other 564 4,095 3,209 (6,607 ) 1,261 Total revenue 288,085 4,100 1,271 (7,504 ) 285,952 Expenses: Losses and loss adjustment expenses 87,224 — — — 87,224 Amortization of deferred policy acquisition costs 36,224 — — — 36,224 Interest expense — 15 10,739 — 10,754 Depreciation and amortization 185 603 920 (370 ) 1,338 Other operating expenses 30,665 2,822 17,867 (7,134 ) 44,220 Total expenses 154,298 3,440 29,526 (7,504 ) 179,760 Income (loss) before income taxes $ 133,787 $ 660 $ (28,255 ) $ — $ 106,192 Total revenue from non-affiliates(c) $ 288,085 $ 2,612 $ 1,104 (a) Other revenue under real estate primarily consisted of rental income from investment properties. (b) Other revenue under corporate and other primarily consisted of revenue from restaurant and marina businesses. (c) Represents amounts before reclassification to conform with an insurance company’s presentation.
Summary of Segment Assets Reconciled to Consolidated Balance Sheet	The following table presents segment assets reconciled to the Company’s total assets in the consolidated balance sheets. December 31, 2017 2016 Segment: Insurance Operations $ 652,754 $ 651,927 Real Estate Operations 80,152 71,226 Corporate and Other 127,822 45,623 Consolidation and Elimination (18,464 ) (98,712 ) Total assets $ 842,264 $ 670,064

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Summary of Income Tax Expense	A summary of income tax expense is as follows: Years Ended December 31, 2017 2016 2015 Current: Federal $ (3,933 ) $ 14,918 $ 34,768 State 34 2,666 5,856 Foreign 81 96 68 Total current taxes (3,818 ) 17,680 40,692 Deferred: Federal (4,144 ) 182 (275 ) State (757 ) (9 ) (46 ) Foreign (12 ) (18 ) (40 ) Total deferred taxes (4,913 ) 155 (361 ) Income tax (benefit) expense $ (8,731 ) $ 17,835 $ 40,331
Summary of the Differences Between the Statutory Federal Income Tax Rate and the Effective Tax Rate	The reasons for the differences between the statutory Federal income tax rate and the effective tax rate are summarized as follows: Years Ended December 31, 2017 2016 2015 Amount % Amount % Amount % Income taxes at statutory rate $ (5,468 ) 35.0 $ 16,395 35.0 $ 37,167 35.0 Increase (decrease) in income taxes resulting from: State income taxes, net of federal tax benefits (657 ) 4.2 1,710 3.6 3,783 3.6 Effects of tax rate changes (1,400 ) 9.0 — — — — Share-based compensation (705 ) 4.5 — — — — Other (501 ) 3.2 (270 ) (0.5 ) (619 ) (0.6 ) Income tax (benefit) expense $ (8,731 ) 55.9 $ 17,835 38.1 $ 40,331 38.0
Significant Components of Net Deferred Income Tax Asset	Significant components of the Company’s net deferred income tax assets are as follows: December 31, 2017 2016 Deferred tax assets: Unearned premiums $ 5,753 $ 9,331 Other-than-temporary impairment losses 386 1,246 Losses and loss adjustment expenses 3,154 986 Organizational costs 90 61 Stock-based compensation 2,455 3,388 Accrued expenses — 35 Unearned revenue 339 489 State net operating losses 333 — State capital loss carryforwards 175 65 Bad debt reserve 2 3 Total deferred tax assets 12,687 15,604 Deferred tax liabilities: Property and equipment (1,517 ) (1,857 ) Intangible assets (1,541 ) (1,890 ) Deferred policy acquisition costs (4,365 ) (6,601 ) Unrealized net gain on available-for-sale (1,907 ) (1,659 ) Basis difference related to partnership investments (599 ) (5 ) Basis difference related to convertible senior notes (4,099 ) (2,519 ) Prepaid expenses (312 ) (412 ) Accrued expenses (37 ) — Other (200 ) (411 ) Total deferred tax liabilities (14,577 ) (15,354 ) Net deferred tax (liabilities) assets $ (1,890 ) $ 250

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Summary of Numerator and Denominator of Basic and Fully Diluted (Loss) Earnings Per Common Share	A summary of the numerator and denominator of the basic and fully diluted (loss) earnings per common share is presented below: (Loss) Shares (a) Per Share Year Ended December 31, 2017 Net loss $ (6,893 ) Less: Loss attributable to participating securities 481 Basic and Diluted Loss Per Share: Loss available to common stockholders* $ (6,412 ) 8,558 $ (0.75 ) *  Stock options and convertible senior notes were excluded due to antidilutive effect.    Year Ended December 31, 2016 Net income $ 29,021 Less: Income attributable to participating securities (1,545 ) Basic Earnings Per Share: Income allocated to common stockholders 27,476 9,326 $ 2.95 Effect of Dilutive Securities: Stock options — 54 Convertible senior notes 4,244 1,493 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 31,720 10,873 $ 2.92 Year Ended December 31, 2015 Net income $ 65,861 Less: Income attributable to participating securities (3,398 ) Basic Earnings Per Share: Income allocated to common stockholders 62,463 9,602 $ 6.51 Effect of Dilutive Securities: Stock options — 102 Convertible senior notes 4,505 1,651 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 66,968 11,355 $ 5.90 (a)   Shares in thousands.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
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 years ended December 31, 2017, 2016 and 2015 is as follows (option amounts not in thousands): Number Weighted Weighted Aggregate Outstanding at January 1, 2015 230,000 $ 3.00 3.0 years $ 9,256 Exercised (120,000 ) $ 2.82 Outstanding at December 31, 2015 110,000 $ 3.19 2.3 years $ 3,482 Exercised (60,000 ) $ 2.50 Outstanding at December 31, 2016 50,000 $ 4.02 2.3 years $ 1,773 Granted 110,000 $ 40.00 Exercised (30,000 ) $ 2.50 Outstanding at December 31, 2017 130,000 $ 34.82 8.2 years $ 472 Exercisable at December 31, 2017 20,000 $ 6.30 3.7 years $ 472
Information about Options Exercised	The following table summarizes information about options exercised for the years ended December 31, 2017, 2016 and 2015 (option amounts not in thousands): 2017 2016 2015 Options exercised 30,000 60,000 120,000 Total intrinsic value of exercised options $ 1,319 $ 1,376 $ 4,551 Tax benefits realized $ 509 $ 501 $ 1,697
Assumptions Used to Estimate the Fair Value of Stock Options Granted	The following table provides assumptions used in the Black-Scholes option-pricing model to estimate the fair value of the stock options granted during the year ended December 31, 2017: Expected dividend yield 3.53 % Expected volatility 42.86 % Risk-free interest rate 1.92 % Expected life (in years) 5
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 years ended December 31, 2017, 2016 and 2015 is as follows: Number of Weighted Nonvested at January 1, 2015 639,705 $ 28.33 Granted 83,260 $ 44.46 Vested (59,695 ) $ 30.13 Forfeited (42,757 ) $ 28.15 Nonvested at December 31, 2015 620,513 $ 30.33 Granted 142,440 $ 32.35 Vested (47,152 ) $ 42.27 Cancelled (160,000 ) $ 26.27 Forfeited (13,298 ) $ 39.06 Nonvested at December 31, 2016 542,503 $ 30.81 Granted 154,936 $ 42.92 Vested (75,983 ) $ 37.95 Forfeited (23,766 ) $ 36.32 Nonvested at December 31, 2017 597,690 $ 32.82
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 and paid dividends, and the fair value of vested restricted stock for the years ended December 31, 2017, 2016 and 2015. 2017 2016 2015 Deferred tax benefits recognized $ 970 $ 1,619 $ 1,453 Tax benefits realized for restricted stock and paid dividends $ 1,396 $ 140 $ 598 Fair value of vested restricted stock $ 2,884 $ 1,993 $ 1,798

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Summary of Contractual Obligations	The table below presents the future minimum aggregate premiums amount payable to the reinsurers. Year 2018* $ 21,792 2019* 2,392 2020* 1,196 Total $ 25,380 * Premiums payable after December 31, 2017 under one contract are estimated. See Note 14 — “Reinsurance” for additional information.
Minimum Future Rental Payments Under Operating Leases	Provided the leases are not early terminated, minimum future rental payments under operating leases after December 31, 2017 are as follows: Year Amount 2018 $ 147 2019 142 2020 150 2021 157 Total minimum future payments $ 596
Minimum Future Payments Under the Service Agreements	Provided the agreement is not early terminated, minimum future payments under the service agreement after December 31, 2017 are as follows: Year Amount 2018 $ 24 2019 26 2020 27 2021 28 Total minimum future payments $ 105
Rental Income Due Under Non-Cancellable Operating Leases	Expected annual rental income due under non-cancellable Year Amount 2018 $ 4,227 2019 4,073 2020 3,651 2021 3,048 2022 2,558 Thereafter 13,786 Total $ 31,343
Miami Lakes, Florida [Member]
Minimum Future Rental Payments Under Operating Leases	Future minimum lease payments, inclusive of sales tax, are as follows: Year Amount 2018 $ 116 2019 158 2020 163 2021 41 Total minimum future payments $ 478

Quarterly Results of Operatio53

Quarterly Results of Operations (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Summary of Unaudited Quarterly Results of Operations	The tables below summarize unaudited quarterly results of operations for 2017, 2016 and 2015. Three Months Ended 03/31/17 06/30/17 09/30/17 12/31/17 Net premiums earned $ 63,036 $ 61,847 $ 43,964 $ 55,771 Total revenue 67,713 67,580 47,490 61,623 Losses and loss adjustment expenses 25,529 27,665 89,231 23,204 Policy acquisition and other underwriting expenses 9,649 10,070 9,926 10,018 Interest expense 3,542 4,378 4,408 4,439 Total expenses 48,571 53,275 113,508 44,676 Income (loss) before income taxes 19,142 14,305 (66,018 ) 16,947 Net income (loss) 12,020 9,542 (40,546 ) 12,091 Comprehensive income (loss) 12,949 8,959 (38,792 ) 11,914 Earnings per share: Basic $ 1.27 $ 1.05 $ (4.44 ) $ 1.37 Diluted* $ 1.15 $ 0.93 $ (4.44 ) $ 1.14 * During the quarter ended September 30, 2017, the convertible senior notes and stock options were antidilutive. Three Months Ended 03/31/16 06/30/16 09/30/16 12/31/16 Net premiums earned $ 58,447 $ 58,528 $ 63,300 $ 63,352 Total revenue 60,747 61,520 69,808 72,371 Losses and loss adjustment expenses 27,080 26,272 25,909 45,406 Policy acquisition and other underwriting expenses 11,110 10,879 10,536 10,117 Interest expense 2,829 2,611 2,672 2,967 Total expenses 51,050 50,291 49,779 66,470 Income before income taxes 9,697 11,229 20,029 5,901 Net income 6,056 7,024 11,333 4,608 Comprehensive income 7,846 10,742 12,487 2,380 Earnings per share: Basic $ 0.60 $ 0.71 $ 1.17 $ 0.47 Diluted* $ 0.60 $ 0.71 $ 1.10 $ 0.47 * During the quarters ended March 31, 2016, June 30, 2016 and December 31, 2016, the convertible senior notes were antidilutive. Three Months Ended 03/31/15 06/30/15 09/30/15 12/31/15 Net premiums earned $ 81,728 $ 76,387 $ 62,765 $ 61,626 Total revenue 82,210 79,068 61,262 63,412 Losses and loss adjustment expenses 19,039 20,565 26,200 21,420 Policy acquisition and other underwriting expenses 9,799 10,443 10,675 11,067 Interest expense 2,661 2,679 2,698 2,716 Total expenses 41,164 43,485 49,324 45,787 Income before income taxes 41,046 35,583 11,938 17,625 Net income 25,378 22,022 7,371 11,090 Comprehensive income 27,009 19,856 5,023 11,516 Earnings per share: Basic $ 2.50 $ 2.17 $ 0.72 $ 1.12 Diluted $ 2.21 $ 1.93 $ 0.71 $ 1.05

Regulatory Requirements and R54

Regulatory Requirements and Restrictions (Tables)	12 Months Ended
	Dec. 31, 2017
Text Block [Abstract]
Summary of Required Ratio of Gross and Net Written Premium to Surplus	The required ratio of gross and net written premium to surplus, which the Company’s insurance companies had exceeded, is summarized below: Years Ended December 31, 2017 2016 2015 HCPCI: Gross 2.01 to 1 1.81 to 1 1.85 to 1 Net 1.11 to 1 1.07 to 1 1.00 to 1 TypTap: Gross 0.33 to 1 0.09 to 1 * Net 0.27 to 1 0.07 to 1 * * TypTap began operations in 2016.

Condensed Financial Informati55

Condensed Financial Information of HCI Group, Inc. (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Balance Sheets	Balance Sheets December 31, 2017 2016 Assets Cash and cash equivalents $ 53,755 $ 2,297 Fixed-maturity securities, available for sale, at fair value 34,529 4,483 Equity securities, available for sale, at fair value 10,238 7,289 Equity securities, trading, at fair value 1,045 — Limited partnership investments, at equity 15,232 21,906 Note receivable – related party 7,280 — Investment in subsidiaries 310,779 411,398 Property and equipment, net 617 664 Income tax receivable 3,023 1,563 Other assets 1,019 940 Total assets $ 437,517 $ 450,540 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 4,499 $ 2,952 Deferred income taxes, net 2,511 949 Long-term debt 211,890 121,436 Due to related parties 24,642 81,457 Total liabilities 243,542 206,794 Total stockholders’ equity 193,975 243,746 Total liabilities and stockholders’ equity $ 437,517 $ 450,540
Statements of Income	Statements of Income Years Ended December 31, 2017 2016 2015 Net investment income (loss) $ 2,799 $ 1,204 $ (2,401 ) Net realized gains 367 151 108 Net unrealized gains 92 — — Other-than-temporary impairment losses (209 ) (15 ) (75 ) Gain on repurchases of convertible senior notes — 153 — Other income — — 30 Loss on repurchases of senior notes (743 ) — — Interest expense (15,704 ) (10,346 ) (10,754 ) Operating expenses (5,489 ) (5,158 ) (7,346 ) Loss before income tax benefit and equity in income of subsidiaries (18,887 ) (14,011 ) (20,438 ) Income tax benefit 9,605 4,878 7,835 Net loss before equity in income of subsidiaries (9,282 ) (9,133 ) (12,603 ) Equity in income of subsidiaries 2,389 38,154 78,464 Net (loss) income $ (6,893 ) $ 29,021 $ 65,861
Statements of Cash Flows	Statements of Cash Flows Years Ended December 31, 2017 2016 2015 Cash flows from operating activities: Net (loss) income $ (6,893 ) $ 29,021 $ 65,861 Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: Stock-based compensation 2,630 2,878 4,341 Net realized investment gains (367 ) (151 ) (108 ) Net unrealized investment gains (92 ) — — Amortization of premiums on investments in fixed-maturity securities 51 — 1 Depreciation and amortization 6,673 3,899 3,996 (Income) loss from limited partnership investments (1,354 ) (523 ) 3,277 Distributions from limited partnership interests 881 544 12 Other-than-temporary impairment losses 209 15 75 Gain on repurchases of convertible senior notes — (153 ) — Loss on repurchases of senior notes 743 — — Loss from disposal of property and equipment 17 — — Equity in income of subsidiaries (2,389 ) (38,154 ) (78,464 ) Deferred income taxes (4,224 ) (1,542 ) (3,218 ) Changes in operating assets and liabilities: Income taxes receivable (1,461 ) (1,563 ) 2,596 Other assets (106 ) (129 ) 228 Accrued expenses and other liabilities 1,544 (716 ) 689 Income taxes payable — (1,518 ) 1,279 Due to related parties (54,896 ) 60,075 (14,831 ) Net cash (used in) provided by operating activities (59,034 ) 51,983 (14,266 ) Cash flows from investing activities: Investment in limited partnership interest (4,611 ) (2,710 ) (19,956 ) Investment in note receivable – related party (7,280 ) — — Purchase of fixed-maturity securities (31,034 ) (371 ) (384 ) Purchase of equity securities, available for sale (8,939 ) (2,853 ) (3,196 ) Purchase of equity securities, trading (3,544 ) — — Purchase of property and equipment (306 ) (202 ) (371 ) Proceeds from sales of fixed-maturity securities 667 423 259 Proceeds from calls, repayments and maturities of fixed-maturity securities — 130 — Proceeds from sales of equity securities, available for sale 6,262 2,602 5,475 Proceeds from sales of equity securities, trading 2,624 — — Distributions from limited partnership interests 11,758 — — Dividends received from subsidiary 105,000 19,000 92,700 Investment in subsidiaries — (25,250 ) (78,536 ) Net cash provided by (used in) investing activities 70,597 (9,231 ) (4,009 ) Statements of Cash Flows (Continued) Years Ended December 31, 2017 2016 2015 Cash flows from financing activities: Repurchases of common stock (30,718 ) (464 ) (792 ) Repurchases of common stock under share repurchase plan (15,154 ) (20,026 ) (1,610 ) Repurchases of convertible senior notes — (11,347 ) — Repurchases of senior notes (40,250 ) — — Debt issuance costs paid (4,975 ) — — Cash dividends paid to stockholders (13,906 ) (12,438 ) (12,428 ) Cash dividends received under share repurchase forward contract 1,073 747 747 Proceeds from exercise of stock options 75 150 263 Proceeds from issuance of long-term debt 143,750 — — Tax benefits on stock-based compensation — 641 2,295 Net cash provided by (used in) financing activities 39,895 (42,737 ) (11,525 ) Net increase (decrease) in cash and cash equivalents 51,458 15 (29,800 ) Cash and cash equivalents at beginning of year 2,297 2,282 32,082 Cash and cash equivalents at end of year $ 53,755 $ 2,297 $ 2,282

Nature of Operations - Addition

Nature of Operations - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017Restaurants
Collaboration Arrangement Disclosure [Abstract]
Number of restaurant owned	1
Offer renewals on the policies acquired	3 years

Summary of Significant Accoun57

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017USD ($)JointVenture	Dec. 31, 2016USD ($)	Dec. 15, 2016
Summary Of Significant Accounting Policies [Line Items]
Percentage of investment in unconsolidated entities	90.00%		90.00%
ADC Arrangement	Prior to August 16, 2016, the Company was party to an Acquisition, Development and Construction loan agreement (“ADC Arrangement”) whereby the Company provided financing to a property developer for the construction of a retail shopping center. Because the Company expected to receive more than 50% of the residual profit from the ADC Arrangement which had characteristics similar to a real estate investment, the costs of the real estate project were capitalized and interest was recognized in net investment income.
Period for establishing allowance on insurance premiums receivable	90 days
Allowance on insurance premiums receivable	$ 0	$ 0
Percentage of minimum tax benefit realized upon settlement	50.00%
Likelihood of tax realization upon settlement	50.00%
Operating expenses totaling reclassified to general and administrative personnel expenses	$ 7,163,000	$ 8,136,000
Capitalized Software Cost [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	7 years
Building [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	39 years
Computer Hardware and Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	3 years
Minimum [Member] | Office Furniture and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	3 years
Maximum [Member] | Office Furniture and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	7 years
Investment in Joint Venture [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of investment in unconsolidated entities	90.00%
Variable Interest Entity [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of investment in unconsolidated entities	100.00%
Number of joint venture | JointVenture	1

Investments - Summary of Amorti

Investments - Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value of Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	$ 235,830	$ 167,231
Equity securities, Cost or Amortized Cost	53,132	47,750
Total available-for-sale securities, Cost or Amortized Cost	288,962	214,981
Total available-for-sale securities, Gross Unrealized Gain	3,124	1,422
Total available-for-sale securities, Gross Unrealized Gain	6,280	5,769
Total available-for-sale securities, Gross Unrealized Gain	9,404	7,191
Total available-for-sale securities, Gross Unrealized Loss	(1,470)	(2,405)
Total available-for-sale securities, Gross Unrealized Loss	(501)	(484)
Total available-for-sale securities, Gross Unrealized Loss	(1,971)	(2,889)
Fixed-maturity securities, Estimated Fair Value	237,484	166,248
Equity securities, Estimated Fair Value	58,911	53,035
Total available-for-sale securities, Estimated Fair Value	296,395	219,283
Fixed-Maturity Securities [Member] | U.S. Treasury and U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	42,313	1,975
Total available-for-sale securities, Gross Unrealized Gain	1
Total available-for-sale securities, Gross Unrealized Loss	(287)	(36)
Fixed-maturity securities, Estimated Fair Value	42,027	1,939
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	106,897	75,538
Total available-for-sale securities, Gross Unrealized Gain	1,110	607
Total available-for-sale securities, Gross Unrealized Loss	(904)	(1,641)
Fixed-maturity securities, Estimated Fair Value	107,103	74,504
Fixed-Maturity Securities [Member] | State, Municipalities, and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	78,954	78,018
Total available-for-sale securities, Gross Unrealized Gain	1,816	776
Total available-for-sale securities, Gross Unrealized Loss	(75)	(488)
Fixed-maturity securities, Estimated Fair Value	80,695	78,306
Fixed-Maturity Securities [Member] | Exchange-Traded Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	7,666	11,463
Total available-for-sale securities, Gross Unrealized Gain	197	36
Total available-for-sale securities, Gross Unrealized Loss	(204)	(237)
Fixed-maturity securities, Estimated Fair Value	$ 7,659	11,262
Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost		237
Total available-for-sale securities, Gross Unrealized Gain		3
Total available-for-sale securities, Gross Unrealized Loss		(3)
Fixed-maturity securities, Estimated Fair Value		$ 237

Investments- Additional Informa

Investments- Additional Information (Detail) $ in Thousands	Dec. 31, 2017USD ($)
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Statutory deposit held in trust for the South Carolina Director of Insurance	$ 249

Investments - Scheduled Contrac

Investments - Scheduled Contractual Maturities of Fixed-Maturity Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Available-for-sale
Due in one year or less, Amortized Cost	$ 35,386	$ 2,656
Due after one year through five years, Amortized Cost	116,575	49,915
Due after five years through ten years, Amortized Cost	57,415	90,360
Due after ten years, Amortized Cost	26,454	24,300
Fixed-maturity securities, Cost or Amortized Cost	235,830	167,231
Due in one year or less, Fair Value	35,364	2,662
Due after one year through five years, Fair Value	115,766	50,023
Due after five years through ten years, Fair Value	58,984	89,332
Due after ten years, Fair Value	27,370	24,231
Fair Value Total	$ 237,484	$ 166,248

Investments - Summary of Procee

Investments - Summary of Proceeds Received and Gross Realized Gains and Losses from Sales of Available for Sale Securities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fixed-Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds	$ 31,759	$ 40,454	$ 53,711
Gross Realized Gains	2,176	604	253
Gross Realized Losses	(181)	(79)	(470)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds	42,657	23,127	25,695
Gross Realized Gains	3,882	2,656	1,327
Gross Realized Losses	$ (1,565)	$ (580)	$ (1,718)

Investments (Other-than-tempora

Investments (Other-than-temporary Impairment) - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Securities	Dec. 31, 2016USD ($)Securities	Dec. 31, 2015USD ($)Securities
Schedule of Investments [Line Items]
Other-than-temporary impairment losses	$ 1,467	$ 2,482	$ 4,681
Other-than-temporary impairment losses related to additional loss	$ 1,116	$ 2,252	$ 5,275
Number of securities in an unrealized loss position | Securities	135	134
Number of securities had been in an unrealized loss position for 12 months or longer | Securities	22	20
Fixed-Maturity Securities [Member]
Schedule of Investments [Line Items]
Other-than-temporary impairment losses, number of securities sold | Securities	4
Other-than-temporary impairment losses, number of securities | Securities		4	2
Other-than-temporary impairment losses	$ 428	$ 1,565	$ 705
Other-than-temporary impairment losses related to additional loss		1,335
Impairment loss recorded in other comprehensive income		$ 230
Other-than-temporary impairment losses related to credit losses			111
Accumulated other-than-temporary impairment losses related to non-credit losses			$ 594
Equity Securities [Member]
Schedule of Investments [Line Items]
Other-than-temporary impairment losses, number of securities | Securities	1	9	17
Other-than-temporary impairment losses related to additional loss	$ 1,039	$ 917	$ 4,570
Two Fixed Maturities [Member]
Schedule of Investments [Line Items]
Fixed-maturity securities with cumulative credit losses	$ 475
Corporate Bonds [Member]
Schedule of Investments [Line Items]
Accumulated other-than-temporary impairment losses related to non-credit losses		$ 76

Investments - Rollforward of Cu

Investments - Rollforward of Cumulative Credit Losses in Other-Than-Temporary Impairments Recognized in Income for Available for Sale Fixed-Maturity Securities (Detail) - Available-for-Sale Securities [Member] - Fixed-Maturity Securities [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Beginning Balance	$ 475	$ 111
Credit impairments on impaired securities	0	475	$ 111
Additional credit impairments on previously impaired securities	0	293
Credit impaired security fully disposed of for which there was no prior intent or requirement to sell	(475)	(385)
Reduction due to increase in expected cash flows recognized over the remaining life of the previously impaired security	0	(19)
Ending Balance	$ 0	$ 475	$ 111

Investments - Summary of Securi

Investments - Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	$ (1,102)	$ (2,510)
Fair Value, Less than Twelve Months	106,282	86,896
Gross Unrealized Loss, Twelve Months or Longer	(869)	(379)
Fair Value, Twelve Months or Longer	36,274	11,013
Gross Unrealized Loss, Total	(1,971)	(2,889)
Fair Value, Total	142,556	97,909
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(449)	(293)
Fair Value, Less than Twelve Months	12,812	10,042
Gross Unrealized Loss, Twelve Months or Longer	(52)	(191)
Fair Value, Twelve Months or Longer	1,440	3,209
Gross Unrealized Loss, Total	(501)	(484)
Fair Value, Total	14,252	13,251
Fixed-Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(653)	(2,217)
Fair Value, Less than Twelve Months	93,470	76,854
Gross Unrealized Loss, Twelve Months or Longer	(817)	(188)
Fair Value, Twelve Months or Longer	34,834	7,804
Gross Unrealized Loss, Total	(1,470)	(2,405)
Fair Value, Total	128,304	84,658
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	(246)	(36)
Fair Value, Less than Twelve Months	40,587	1,939
Gross Unrealized Loss, Twelve Months or Longer	(41)
Fair Value, Twelve Months or Longer	1,938
Gross Unrealized Loss, Total	(287)	(36)
Fair Value, Total	42,525	1,939
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(174)	(1,546)
Fair Value, Less than Twelve Months	40,627	43,859
Gross Unrealized Loss, Twelve Months or Longer	(730)	(95)
Fair Value, Twelve Months or Longer	30,563	2,814
Gross Unrealized Loss, Total	(904)	(1,641)
Fair Value, Total	71,190	46,673
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	(30)	(441)
Fair Value, Less than Twelve Months	9,775	26,029
Gross Unrealized Loss, Twelve Months or Longer	(45)	(47)
Fair Value, Twelve Months or Longer	2,297	3,036
Gross Unrealized Loss, Total	(75)	(488)
Fair Value, Total	12,072	29,065
Fixed-Maturity Securities [Member] | Exchange-Traded Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(203)	(191)
Fair Value, Less than Twelve Months	2,481	4,980
Gross Unrealized Loss, Twelve Months or Longer	(1)	(46)
Fair Value, Twelve Months or Longer	36	1,954
Gross Unrealized Loss, Total	(204)	(237)
Fair Value, Total	$ 2,517	6,934
Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months		(3)
Fair Value, Less than Twelve Months		47
Gross Unrealized Loss, Total		(3)
Fair Value, Total		$ 47

Investments (Trading Securities

Investments (Trading Securities) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Amortized Cost and Fair Value Debt Securities [Abstract]
Trading securities cost	$ 953	$ 0
Trading securities net unrealized gains	92
Trading securities estimated fair value	$ 1,045	$ 0

Investments - Summary of Proc66

Investments - Summary of Proceeds Received and The Gross Realized Gains and Losses From Sales of Trading Equity Securities (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Schedule of Trading Securities and Other Trading Assets [Line Items]
Proceeds sales of trading equity securities	$ 2,625
Equity Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Proceeds sales of trading equity securities	2,625
Gross Realized Gains sales of trading equity securities	111
Gross Realized Losses sales of trading equity securities	$ (77)

Investments - Schedule of Compa

Investments - Schedule of Company's Investments in Limited Partnerships (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Investment Securities [Line Items]
Carrying Value	$ 23,184	$ 29,263
Unfunded Balance	14,328	13,554
Private US Lower Middle Market Companies [Member]
Investment Securities [Line Items]
Carrying Value	7,276	6,246
Unfunded Balance	$ 5,505	$ 6,428
Percentage investment held by the entity	15.37%	16.50%
Bank Loans Public and Private Corporate Bonds Asset Backed Securities Equity and Debt Restructuring [Member]
Investment Securities [Line Items]
Carrying Value	$ 7,951	$ 7,358
Unfunded Balance	$ 1,745	$ 1,360
Percentage investment held by the entity	1.76%	1.76%
Power Utility and Energy Industries and Infrastructure [Member]
Investment Securities [Line Items]
Carrying Value	$ 7,509	$ 4,326
Unfunded Balance	$ 2,512	$ 5,766
Percentage investment held by the entity	0.18%	0.18%
Equity and Debt Securities Publicly Traded US and Non US Issuers [Member]
Investment Securities [Line Items]
Carrying Value		$ 11,333
Percentage investment held by the entity		66.58%
Senior and Junior Debts of Private Equity-Backed Companies [Member]
Investment Securities [Line Items]
Carrying Value	$ 448
Unfunded Balance	$ 4,566
Percentage investment held by the entity	0.47%

Investments - Schedule of Com68

Investments - Schedule of Company's Investments in Limited Partnerships (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2017
Private US Lower Middle Market Companies [Member]
Investment Securities [Line Items]
Expected term	10 years
Expiration date of capital commitment	Sep. 3, 2019
Investment additional maturity term	2 years
Bank Loans Public and Private Corporate Bonds Asset Backed Securities Equity and Debt Restructuring [Member]
Investment Securities [Line Items]
Expected term	3 years
Expiration date of capital commitment	Mar. 31, 2018
Investment additional maturity term	2 years
Power Utility and Energy Industries and Infrastructure [Member]
Investment Securities [Line Items]
Expected term	10 years
Expiration date of capital commitment	Jun. 30, 2020
Investment additional maturity term	3 years
Senior and Junior Debts of Private Equity-Backed Companies [Member]
Investment Securities [Line Items]
Expected term	6 years
Expiration date of capital commitment	Dec. 1, 2018
Investment additional maturity term	2 years

Investments - Summary of Unaudi

Investments - Summary of Unaudited Financial Information and Unaudited Financial Position of Limited Partnerships (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating results:
Total income	$ 61,623	$ 47,490	$ 67,580	$ 67,713	$ 72,371	$ 69,808	$ 61,520	$ 60,747	$ 63,412	$ 61,262	$ 79,068	$ 82,210	$ 244,406	$ 264,446	$ 285,952
Total expenses	44,676	$ 113,508	$ 53,275	$ 48,571	66,470	$ 49,779	$ 50,291	$ 51,050	$ 45,787	$ 49,324	$ 43,485	$ 41,164
Limited Partnership [Member]
Operating results:
Total income													409,169	310,998	4,350
Total expenses													105,281	185,126	77,508
Net income (loss)													303,888	125,872	$ (73,158)
Balance Sheet:
Total assets	4,381,321				2,956,327								4,381,321	2,956,327
Total liabilities	$ 382,310				$ 63,813								$ 382,310	$ 63,813

Investments (Limited Partnershi

Investments (Limited Partnership Investments) - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Recognized investment income (loss)		$ 2,334	$ 1,207	$ (3,244)
Maximum exposure loss relating to VIE		1,304	2,102
Return on investment		881	544	12
Limited Partnership [Member]
Schedule of Investments [Line Items]
Recognized investment income (loss)		2,334	1,207	(3,244)
Company's contributed capital to the partnership		21,172	31,946
Maximum exposure loss relating to VIE		23,184	29,263
Cash distributions		12,639
Return on investment		881	$ 544	$ 12
Return of capital	$ 11,626	$ 11,758

Investments (Investment in Unco

Investments (Investment in Unconsolidated Joint Venture) - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Mar. 31, 2017	Jan. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 15, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Equity interest percentage			90.00%		90.00%
Amount of gains (losses) on sale of investment to company	$ 199,000	$ 383,000
Gain on remeasurement of previously held interest				$ 4,005,000	$ 4,005,000
Ownership percentage					90.00%
Maximum exposure loss relating to VIE			$ 1,304,000	2,102,000
Undistributed gain (loss) after equity distribution			0	(25,000)
Earnings distribution			147,000
Capital distribution			417,000
Impairment loss			0	0
Deferred costs			$ 382,000
FMKT Mel JV, LLC [Member]
Schedule of Investments [Line Items]
Equity interest percentage			90.00%
Gross proceeds from outparcel land	825,000	829,000
Repayment of construction loan		515,000
Gain on sale of land	$ 331,000	$ 404,000
Non-controlling interest			10.00%		10.00%
Cash distribution			$ 564,000	$ 0		$ 0
Earnings distribution			147,000
Capital distribution			$ 417,000

Investments - Summary of Unau72

Investments - Summary of Unaudited Financial Information and Unaudited Financial Position of Joint Venture (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2015
Operating results:
Total expenses	$ 44,676	$ 113,508	$ 53,275	$ 48,571	$ 66,470	$ 49,779	$ 50,291	$ 51,050	$ 45,787	$ 49,324	$ 43,485	$ 41,164
The Company's share of net loss													$ (234)	$ (125)
Balance Sheet:
Other	10,550				11,342								10,550
Total assets	842,264				670,064								842,264
Other liabilities	20,207				26,702								20,207
Total liabilities and stockholders' equity (or members' capital)	842,264				670,064								842,264
Investment in unconsolidated joint venture, at equity	1,304				2,102								1,304
Unconsolidated Joint Venture [Member]
Operating results:
Total revenues													331	118
Total expenses													483	257
Net income (loss)													(152)	(139)
Balance Sheet:
Construction in progress - real estate	27				334								27
Property and equipment, net	1,199				1,654								1,199
Cash	236				179								236
Other	5				180								5
Total assets	1,467				2,347								1,467
Accounts payable					11
Other liabilities	18												18
Members' capital	1,449				2,336								1,449
Total liabilities and stockholders' equity (or members' capital)	$ 1,467				$ 2,347								1,467
Operating Expense [Member]
Operating results:
The Company's share of net loss													$ (234)	$ (125)

Investments - Summary of Unau73

Investments - Summary of Unaudited Financial Information and Unaudited Financial Position of Joint Venture (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 15, 2016
Investments, Debt and Equity Securities [Abstract]
Percentage of operating results	90.00%	90.00%

Investments (Real Estate Invest

Investments (Real Estate Investments) - Additional Information (Detail) $ in Thousands	Oct. 17, 2017USD ($)	Aug. 16, 2016USD ($)	Dec. 31, 2017USD ($)RestaurantMarina	Dec. 31, 2016USD ($)RestaurantMarinaAcquisition	Dec. 31, 2015USD ($)
Schedule of Investments [Line Items]
Commercial real estate purchase price	$ 9,100	$ 12,250
Acquisition related costs	$ 115
Depreciation and amortization expenses under real estate investments			$ 1,238	$ 1,272	$ 1,338
Number of business acquisitions in current period | Acquisition				2
Real Estate Investments [Member]
Schedule of Investments [Line Items]
Number of restaurants | Restaurant			1	1
Number of marinas | Marina			2	2
Depreciation and amortization expenses under real estate investments			$ 1,447	$ 531	$ 370

Investments - Summary of Real E

Investments - Summary of Real Estate Investment (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Real Estate [Abstract]
Land	$ 26,315	$ 17,592
Land improvements	9,904	9,336
Building	21,284	16,154
Tenant and leasehold improvements	1,204	872
Construction in progress		3,404
Other	3,050	2,683
Total, at cost	61,757	50,041
Less: accumulated depreciation and amortization	(3,399)	(1,955)
Real estate investments	$ 58,358	$ 48,086

Investments (Consolidated Varia

Investments (Consolidated Variable Interest Entity) - Additional Information (Detail)	Dec. 31, 2017ft²
Amortized Cost and Fair Value Debt Securities [Abstract]
Net rentable space	8,400

Investments - Summary of Assets

Investments - Summary of Assets and Liabilities Related to Company's Consolidated Variable Interest Entity (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 255,884	$ 280,531	$ 267,738	$ 314,416
Construction in progress included in real estate investments		3,404
Real estate investments	58,358	48,086
Other assets	10,550	11,342
Accrued expenses	6,035	6,513
Other liabilities	20,207	26,702
Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents		65
Construction in progress included in real estate investments		3,404
Real estate investments	4,680
Other assets	152
Accrued expenses	21	68
Other liabilities	$ 160	$ 11

Investments - Investment (Loss)

Investments - Investment (Loss) Income Summarized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Investment income	$ 2,334	$ 1,207	$ (3,244)
Net investment income (loss) from real estate investments	(1,018)	(592)	(343)
Loss from unconsolidated joint venture	(234)		(125)
Net investment income	11,439	9,087	3,978
Limited Partnership Investment [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment income	2,334	1,207	(3,244)
Cash and Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment income	2,069	1,036	661
Other Types Of Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment income	7	46	57
Investment Expense [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment expense	(726)	(651)	(673)
Available-for-Sale Securities [Member] | Fixed-Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment income	5,689	4,589	3,935
Available-for-Sale Securities [Member] | Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment income	$ 3,318	$ 3,452	$ 3,710

Investments (Net Investment Inc

Investments (Net Investment Income) - Additional Information (Detail) $ in Thousands	Dec. 31, 2017USD ($)AccountsBank	Dec. 31, 2016USD ($)AccountsBank	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Schedule of Investments [Line Items]
Cash and cash equivalents	$ 255,884	$ 280,531	$ 267,738	$ 314,416
Deposits representing cash and cash equivalents in percentage	34.10%	72.60%
Number of national banks | Bank	3	3
Number of custodial accounts | Accounts	3	3
Federal Deposit Insurance Corporation's coverage limit for insured deposit accounts	$ 250	$ 250
Custodial Accounts [Member]
Schedule of Investments [Line Items]
Cash and cash equivalents	38,543	28,431
Bank Deposits [Member]
Schedule of Investments [Line Items]
Cash and cash equivalents	$ 87,092	$ 203,139

Comprehensive Income (Loss) - S

Comprehensive Income (Loss) - Schedule of Components of Other Comprehensive Income or Loss and Related Tax Effects Allocated to Each Component (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Before Tax
Unrealized gain (loss) arising during the period, Before Tax	$ 5,996	$ 7,317	$ (9,366)
Other-than-temporary impairment loss, Before Tax	1,467	2,482	4,681
Call and repayment losses charged to investment income, Before Tax	14	20	77
Reclassification adjustment for realized (gains) losses, Before Tax	(4,346)	(2,601)	608
Total other comprehensive income (loss), Before Tax	3,131	7,218	(4,000)
Income Tax Expense (Benefit)
Unrealized gain (loss) arising during the period, Income Tax Expense (Benefit)	2,313	2,823	(3,613)
Other-than-temporary impairment loss, Income Tax Expense (Benefit)	566	957	1,806
Call and repayment losses charged to investment income, Income Tax Expense (Benefit)	5	8	29
Reclassification adjustment for realized (gains) losses, Income Tax Expense (Benefit)	(1,676)	(1,004)	235
Total other comprehensive income (loss), Income Tax Expense (Benefit)	1,208	2,784	(1,543)
Net of Tax
Unrealized gain (loss) arising during the period, Net of Tax	3,683	4,494	(5,753)
Other-than-temporary impairment loss, Net of Tax	901	1,525	2,875
Call and repayment losses charged to investment income, Net of Tax	9	12	48
Reclassification adjustment for realized (gains) losses, Net of Tax	(2,670)	(1,597)	373
Total other comprehensive income (loss), net of income taxes	$ 1,923	$ 4,434	$ (2,457)

Business Acquisitions - Additio

Business Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 17, 2017	Dec. 15, 2016	Aug. 16, 2016	Dec. 31, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 15, 2016	Dec. 31, 2015	Jan. 31, 2017
Business Acquisition [Line Items]
Purchase price	$ 9,100		$ 12,250
Gain on bargain purchase			$ 2,071																$ 2,071
Equity interest percentage																		90.00%		90.00%
Cash funded for equity interest																			871
Additional borrowings from revolving credit facility		$ 1,193
Impairment loss																		$ 38	388
Net loss					$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378		$ (6,893)	29,021		$ 65,861
Pineda Landings - Melbourne, Florida [Member]
Business Acquisition [Line Items]
Purchase price		$ 2,064																	$ 2,064
Equity interest percentage		90.00%																	90.00%
Non-controlling interest		10.00%		10.00%					10.00%								10.00%		10.00%	10.00%
Contingent arrangement																						$ 200
Additional borrowings from revolving credit facility																			$ 1,193
Impairment loss				$ 388
Rental income contributed																	$ 426
Net loss																	$ 460
3.75% Promissory Note [Member]
Business Acquisition [Line Items]
Debt instrument stated interest rate			3.75%		3.75%													3.75%

Business Acquisitions - Allocat

Business Acquisitions - Allocation of Purchase Price to Net Assets Acquired Based on their Fair Values at the Acquisition Date (Detail) - USD ($) $ in Thousands	Oct. 17, 2017	Dec. 15, 2016	Aug. 16, 2016	Dec. 31, 2016	Dec. 31, 2017
Identifiable assets acquired and liabilities assumed:
Cash			$ 194
Land			1,600
Land improvements			3,045
Buildings			7,120
Intangibles			2,580	$ 5,199	$ 5,199
Tenant improvements			76
Building improvement			29
Other assets			33
Other liabilities			(356)
Total net assets acquired			14,321
Less: Gain on bargain purchase			(2,071)	(2,071)
Cash paid to the 10% joint venture partner	$ 9,100		$ 12,250
Pineda Landings - Melbourne, Florida [Member]
Identifiable assets acquired and liabilities assumed:
Cash		$ 502
Land		2,857
Land improvements		4,671
Buildings		5,480
Intangibles		2,619
Tenant improvements		403
Building improvement		403
Other property and equipment		17
Other assets		940
Construction loan		(8,214)
Other liabilities		(550)
Total net assets acquired		9,128
Less:Carrying value of 90% equity method investment		(2,859)
Gain on remeasurement of previously held interest		(4,005)
Payable to the 10% joint venture partner		(200)
Cash paid to the 10% joint venture partner		$ 2,064		$ 2,064

Business Acquisitions - Alloc83

Business Acquisitions - Allocation of Purchase Price to Net Assets Acquired Based on their Fair Values at the Acquisition Date (Parenthetical) (Detail)	Dec. 15, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 15, 2016
Business Acquisition [Line Items]
Equity interest percentage		90.00%		90.00%
Pineda Landings - Melbourne, Florida [Member]
Business Acquisition [Line Items]
Equity interest percentage	90.00%		90.00%
Non-controlling interest percentage of joint venture partner	10.00%		10.00%	10.00%

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2017	Dec. 31, 2017	Dec. 31, 2016	Feb. 27, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value transfers between Level 1, 2 or 3		$ 0	$ 0
3.95% Promissory Note [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument stated interest rate		3.95%		3.95%
3.95% Promissory Note [Member] | Revolving Credit Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument stated interest rate	3.95%
Debt instrument, maturity term	3 years

Fair Value Measurements - Compo

Fair Value Measurements - Components of Long-Term Debt and Methods Used in Estimating Fair Values (Detail)	12 Months Ended
	Dec. 31, 2017
Senior Notes [Member]
Debt Instrument [Line Items]
Valuation Methodology	Closing price listed on the New York Stock Exchange
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2,019
Valuation Methodology	Quoted price at January 3, 2018; Discounted cash flow method/Level 3 inputs at December 31, 2016
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2,037
Valuation Methodology	Quoted price
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2,020
Valuation Methodology	Discounted cash flow method/Level 3 inputs
4% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2,031
Valuation Methodology	Discounted cash flow method/Level 3 inputs
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2,036
Valuation Methodology	Discounted cash flow method/Level 3 inputs

Fair Value Measurements - Com86

Fair Value Measurements - Components of Long-Term Debt and Methods Used in Estimating Fair Values (Parenthetical) (Detail)	Dec. 31, 2017	Apr. 03, 2017	Mar. 03, 2017	Feb. 27, 2017	Aug. 16, 2016	Jan. 14, 2016
Senior Notes [Member]
Debt Instrument [Line Items]
Fixed annual rate of interest	8.00%	8.00%
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.875%
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.25%	4.25%	4.25%
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.95%			3.95%
4% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.00%					4.00%
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.75%				3.75%

Fair Value Measurements - Avail

Fair Value Measurements - Available-for-Sale Securities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financial Assets:
Total fixed-maturity securities	$ 237,484	$ 166,248
Equity securities	58,911	53,035
Total available-for-sale securities	296,395	219,283
Trading equity securities	1,045	0
Fair Value, Measurements, Recurring [Member]
Financial Assets:
Cash and cash equivalents	255,884	280,531
Total fixed-maturity securities	237,484	166,248
Equity securities	58,911	53,035
Total available-for-sale securities	296,395	219,283
Trading equity securities	1,045
Total financial assets	553,324	499,814
Fair Value, Measurements, Recurring [Member] | U.S. Treasury and U.S. Government Agencies [Member]
Financial Assets:
Total fixed-maturity securities	42,027	1,939
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]
Financial Assets:
Total fixed-maturity securities	107,103	74,504
Fair Value, Measurements, Recurring [Member] | State, Municipalities, and Political Subdivisions [Member]
Financial Assets:
Total fixed-maturity securities	80,695	78,306
Fair Value, Measurements, Recurring [Member] | Exchange-Traded Debt [Member]
Financial Assets:
Total fixed-maturity securities	7,659	11,262
Fair Value, Measurements, Recurring [Member] | Redeemable Preferred Stock [Member]
Financial Assets:
Total fixed-maturity securities		237
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Cash and cash equivalents	255,884	280,531
Total fixed-maturity securities	154,295	86,957
Equity securities	58,911	53,035
Total available-for-sale securities	213,206	139,992
Trading equity securities	1,045
Total financial assets	470,135	420,523
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member] | U.S. Treasury and U.S. Government Agencies [Member]
Financial Assets:
Total fixed-maturity securities	40,527	1,939
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member] | Corporate Bonds [Member]
Financial Assets:
Total fixed-maturity securities	106,109	73,519
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member] | Exchange-Traded Debt [Member]
Financial Assets:
Total fixed-maturity securities	7,659	11,262
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member] | Redeemable Preferred Stock [Member]
Financial Assets:
Total fixed-maturity securities		237
Fair Value, Measurements, Recurring [Member] | (Level 2) [Member]
Financial Assets:
Total fixed-maturity securities	83,189	79,291
Total available-for-sale securities	83,189	79,291
Total financial assets	83,189	79,291
Fair Value, Measurements, Recurring [Member] | (Level 2) [Member] | U.S. Treasury and U.S. Government Agencies [Member]
Financial Assets:
Total fixed-maturity securities	1,500
Fair Value, Measurements, Recurring [Member] | (Level 2) [Member] | Corporate Bonds [Member]
Financial Assets:
Total fixed-maturity securities	994	985
Fair Value, Measurements, Recurring [Member] | (Level 2) [Member] | State, Municipalities, and Political Subdivisions [Member]
Financial Assets:
Total fixed-maturity securities	$ 80,695	$ 78,306

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value Information for Financial Assets and Liabilities Carried on Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Financial Assets:
Limited partnership investments	$ 23,184	$ 29,263
Financial Liabilities:
Total long-term debt	237,835	138,863
Estimate of Fair Value Measurement [Member]
Financial Assets:
Limited partnership investments	23,184	29,263
Financial Liabilities:
Total long-term debt	240,212	143,484
Revolving credit facility		9,463
Estimate of Fair Value Measurement [Member] | Senior Notes [Member]
Financial Liabilities:
Total long-term debt		41,618
Estimate of Fair Value Measurement [Member] | 3.875% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	90,827	84,696
Estimate of Fair Value Measurement [Member] | 4% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	7,820	8,664
Estimate of Fair Value Measurement [Member] | 3.75% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	9,227	8,506
Estimate of Fair Value Measurement [Member] | 4.25% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	124,444
Estimate of Fair Value Measurement [Member] | 3.95% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	7,894
Estimate of Fair Value Measurement [Member] | (Level 2) [Member]
Financial Liabilities:
Total long-term debt	215,271	41,618
Estimate of Fair Value Measurement [Member] | (Level 2) [Member] | Senior Notes [Member]
Financial Liabilities:
Total long-term debt		41,618
Estimate of Fair Value Measurement [Member] | (Level 2) [Member] | 3.875% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	90,827
Estimate of Fair Value Measurement [Member] | (Level 2) [Member] | 4.25% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	124,444
Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Assets:
Limited partnership investments	23,184	29,263
Financial Liabilities:
Total long-term debt	24,941	101,866
Revolving credit facility		9,463
Estimate of Fair Value Measurement [Member] | (Level 3) [Member] | 3.875% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt		84,696
Estimate of Fair Value Measurement [Member] | (Level 3) [Member] | 4% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	7,820	8,664
Estimate of Fair Value Measurement [Member] | (Level 3) [Member] | 3.75% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	9,227	8,506
Estimate of Fair Value Measurement [Member] | (Level 3) [Member] | 3.95% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	7,894
Carrying Value [Member]
Financial Assets:
Limited partnership investments	23,184	29,263
Financial Liabilities:
Total long-term debt	237,835	138,863
Revolving credit facility		9,463
Carrying Value [Member] | Senior Notes [Member]
Financial Liabilities:
Total long-term debt		39,448
Carrying Value [Member] | 3.875% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	85,436	81,988
Carrying Value [Member] | 4% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	8,206	8,660
Carrying Value [Member] | 3.75% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	8,469	$ 8,767
Carrying Value [Member] | 4.25% Convertible Senior Notes [Member]
Financial Liabilities:
Total long-term debt	126,454
Carrying Value [Member] | 3.95% Promissory Note [Member]
Financial Liabilities:
Total long-term debt	$ 9,270

Fair Value Measurements - Sch89

Fair Value Measurements - Schedule of Fair Value Information for Financial Assets and Liabilities Carried on Balance Sheet (Parenthetical) (Detail)	Dec. 31, 2017	Apr. 03, 2017	Mar. 03, 2017	Dec. 31, 2016	Aug. 16, 2016	Jan. 14, 2016
Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed annual rate of interest	8.00%	8.00%
3.875% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.875%
4% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.00%					4.00%
3.75% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.75%				3.75%
4.25% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.25%	4.25%	4.25%
Estimate of Fair Value Measurement [Member] | Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed annual rate of interest				8.00%
Estimate of Fair Value Measurement [Member] | 3.875% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.875%			3.875%
Estimate of Fair Value Measurement [Member] | 4% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.00%			4.00%
Estimate of Fair Value Measurement [Member] | 3.75% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.75%			3.75%
Estimate of Fair Value Measurement [Member] | 4.25% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.25%
Estimate of Fair Value Measurement [Member] | 3.95% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.95%
Carrying Value [Member] | Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed annual rate of interest				8.00%
Carrying Value [Member] | 3.875% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.875%			3.875%
Carrying Value [Member] | 4% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.00%			4.00%
Carrying Value [Member] | 3.75% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.75%			3.75%
Carrying Value [Member] | 4.25% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.25%
Carrying Value [Member] | 3.95% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.95%

Deferred Policy Acquisition C90

Deferred Policy Acquisition Costs - Summary of Activity with Respect to Deferred Policy Acquisition Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Beginning balance	$ 16,639	$ 18,602
Policy acquisition costs deferred	35,736	35,905
Amortization	(35,663)	(37,868)	$ (36,224)
Ending balance	$ 16,712	$ 16,639	$ 18,602

Deferred Policy Acquisition C91

Deferred Policy Acquisition Costs - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Amortization	$ 35,663	$ 37,868	$ 36,224

Property and Equipment, net - S

Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total, at cost	$ 20,279	$ 17,998
Less:accumulated depreciation and amortization	(7,814)	(6,624)
Property and equipment, net	12,465	11,374
Land [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	1,642	1,642
Building [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	7,952	7,932
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	3,964	2,294
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	2,014	1,940
Tenant and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	3,320	3,250
Other [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	$ 1,387	$ 940

Property and Equipment, net - A

Property and Equipment, net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 1,237	$ 1,272	$ 1,338

Intangible Assets, Net - Detail

Intangible Assets, Net - Details of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 5,567	$ 4,975
Less: accumulated amortization	(572)	(76)
Intangible assets, net	4,995	4,899
Anchor Tenants Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	1,761	1,761
In-Place Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 3,806	$ 3,214

Intangible Assets, Net - Additi

Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Aug. 16, 2016
Finite-Lived Intangible Assets [Line Items]
Intangibles	$ 5,199	$ 5,199	$ 2,580
Accumulated amortization	$ 503	$ 77
Remaining weighted-average amortization period	13 years 3 months 19 days
Anchor Tenants Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period	17 years 3 months 19 days
In-Place Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period	11 years 4 months 24 days

Intangible Assets, Net - Schedu

Intangible Assets, Net - Schedule of Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2,018	$ 604
2,019	604
2,020	597
2,021	493
2,022	419
Thereafter	2,278
Intangible assets, net	$ 4,995	$ 4,899

Other Assets - Summary of Other

Other Assets - Summary of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Benefits receivable related to retrospective reinsurance contracts	$ 2,393	$ 5,810
Prepaid expenses	1,741	1,581
Lease acquisition costs, net	723	641
Restricted cash	809	600
Other	4,884	2,710
Total other assets	$ 10,550	$ 11,342

Revolving Credit Facility - Add

Revolving Credit Facility - Additional Information (Detail) - USD ($)	Dec. 15, 2016	Dec. 15, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 15, 2016	Dec. 31, 2015	Feb. 28, 2017	Feb. 27, 2017
Line of Credit Facility [Line Items]
Equity interest percentage															90.00%		90.00%
Current borrowing capacity under secured credit agreement	$ 8,214,000														$ 8,214,000
Maximum borrowing limit	$ 9,550,000	$ 9,550,000															$ 9,550,000
Interest rate	2.70%
Credit agreement maturity date															Feb. 27, 2017
Credit agreement conversion description															The Company had an option to convert the outstanding balance at the initial maturity date into a three-year mortgage loan payable in 36 monthly installments at a fixed interest rate.
Additional borrowings from revolving credit facility	$ 1,193,000
Outstanding balance under revolving credit facility			$ 9,463,000												$ 9,463,000
Interest expense for revolving credit facility			$ 4,439,000	$ 4,408,000	$ 4,378,000	$ 3,542,000	$ 2,967,000	$ 2,672,000	$ 2,611,000	$ 2,829,000	$ 2,716,000	$ 2,698,000	$ 2,679,000	$ 2,661,000	$ 16,767,000	$ 11,079,000		$ 10,754,000
3.95% Promissory Note [Member]
Line of Credit Facility [Line Items]
Maximum borrowing limit																				$ 9,550,000
Debt instrument stated interest rate			3.95%												3.95%					3.95%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Interest expense for revolving credit facility		$ 11,000													$ 235,000
Revolving Credit Facility [Member] | 3.95% Promissory Note [Member]
Line of Credit Facility [Line Items]
Debt instrument stated interest rate																			3.95%
FMKT MGA [Member]
Line of Credit Facility [Line Items]
Equity interest percentage	90.00%
FMKT Mel JV, LLC [Member]
Line of Credit Facility [Line Items]
Equity interest percentage															90.00%
Non-controlling interest	10.00%	10.00%	10.00%												10.00%		10.00%

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Mar. 03, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2013
Debt Instrument [Line Items]
Total principal amount	$ 260,061		$ 147,985
Less: unamortized discount and issuance costs	(22,226)		(9,122)
Total long-term debt	237,835		138,863
Senior Notes [Member]
Debt Instrument [Line Items]
Total principal amount			40,250
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total principal amount	89,990		89,990	$ 89,990	$ 103,000
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total principal amount	143,750	$ 143,750
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	9,360
4% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	8,348		8,821
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	$ 8,613		$ 8,924

Long-Term Debt - Summary of 100

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2017	Apr. 03, 2017	Mar. 03, 2017	Feb. 27, 2017	Aug. 16, 2016	Jan. 14, 2016
Senior Notes [Member]
Debt Instrument [Line Items]
Fixed annual rate of interest	8.00%	8.00%
Debt instrument, repurchase date	Apr. 3, 2017
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.875%
Debt instrument, maturity date	Mar. 15, 2019
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.25%	4.25%	4.25%
Debt instrument, maturity date	Mar. 1, 2037
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.95%			3.95%
Debt instrument, maturity date	Feb. 17, 2020
4% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.00%					4.00%
Debt instrument, maturity date	Feb. 1, 2031
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.75%				3.75%
Debt instrument, maturity date	Sep. 1, 2036

Long-Term Debt - Summary of Fut

Long-Term Debt - Summary of Future Maturities of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Long-term Debt, Rolling Maturity [Abstract]
2,018	$ 1,049
2,019	91,081
2,020	9,761
2,021	916
2,022	144,702
Thereafter	12,552
Total	$ 260,061	$ 147,985

Long-Term Debt - Schedule of In

Long-Term Debt - Schedule of Interest Expense Related to Long-Term Debt (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest Expense, Debt [Abstract]
Contractual interest	$ 10,424	$ 7,315	$ 7,211
Non-cash expense	6,404	3,529	3,543
Capitalized interest	(61)
Total	$ 16,767	$ 10,844	$ 10,754

Long-Term Debt (Convertible Sen

Long-Term Debt (Convertible Senior Notes) - Additional Information (Detail) $ / shares in Units, $ in Thousands	Apr. 03, 2017USD ($)	Mar. 03, 2017USD ($)	Jan. 31, 2015$ / shares	Dec. 31, 2017USD ($)$ / shares	Dec. 31, 2017USD ($)d$ / shares	Dec. 31, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2013USD ($)
Debt Instrument [Line Items]
Debt instrument, face amount				$ 260,061	$ 260,061	$ 147,985
Debt extinguishment costs					$ (743)
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate				3.875%	3.875%
Debt conversion date				2,019
Debt instrument, face amount				$ 89,990	$ 89,990	89,990	$ 89,990	$ 103,000
Aggregate amount of debt repurchased							$ 13,010
Convertible debt, conversion ratio					16.2172
Convertible debt, conversion price | $ / shares				$ 61.66	$ 61.66
Debt instrument, effective interest rate				8.30%	8.30%
Debt discount, remaining amortization period					1 year 2 months 12 days
3.875% Convertible Senior Notes [Member] | Convertible Debt Instrument Conversion Period Two [Member] | Minimum [Member]
Debt Instrument [Line Items]
Cash dividends on common stock | $ / shares			$ 0.275
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.25%	4.25%		4.25%	4.25%
Debt conversion date				2,037
Debt instrument, face amount		$ 143,750		$ 143,750	$ 143,750
Proceeds from senior convertible notes net		138,775
Debt issuance and transaction costs		$ 4,975
Convertible debt, conversion ratio					16.2635
Convertible debt, conversion price | $ / shares				$ 61.49	$ 61.49
Debt instrument, effective interest rate				7.60%	7.60%
Debt discount, remaining amortization period					4 years 2 months 12 days
Debt Instrument effective Rate					5.40%
Debt Instrument term					20 years
4.25% Convertible Senior Notes [Member] | Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Debt instrument put date					Mar. 1, 2022
4.25% Convertible Senior Notes [Member] | Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Debt instrument put date					Mar. 1, 2027
4.25% Convertible Senior Notes [Member] | Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Debt instrument put date					Mar. 1, 2032
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$ 233,740	$ 233,740	89,990
Convertible debt, conversion debt description					The holders of the Convertible Senior Notes may convert all or a portion of their Convertible Senior Notes during specified periods as follows: (1) during any calendar quarter commencing after the calendar quarter ending on the dates specified in each respective indenture, if the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business-day period after any ten consecutive trading-day period in which the trading price per $1 principal amount of the Convertible Senior Notes is less than 98% of the product of the last reported sale price and the conversion rate on each such trading day; (3) if specified corporate events, including a change in control, occur; or (4) at any time on or after the dates specified in each respective indenture.
Convertible debt, threshold trading days | d					20
Convertible debt, threshold consecutive trading days | d					30
Convertible debt, threshold percentage of stock trigger price					130.00%
Convertible Senior Notes [Member] | Convertible Debt Instrument Conversion Period Two [Member]
Debt Instrument [Line Items]
Convertible debt, threshold consecutive trading days | d					10
Convertible debt, threshold trading days					5 days
Convertible debt, threshold percentage of stock trigger price					98.00%
Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						$ 40,250
Extinguishment of debt	$ 40,805
Fixed annual rate of interest	8.00%			8.00%	8.00%
Unamortized debt issuance costs	$ 743
Accrued and unpaid interest	$ 555
Debt extinguishment costs					$ 743

Long-Term Debt - Summary of Pri

Long-Term Debt - Summary of Principal and Interest Payment Terms of Convertible Senior Notes (Detail)	12 Months Ended
	Dec. 31, 2017
3.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible senior notes, interest payment terms	Semiannually in arrears: March 15 and September 15
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible senior notes, interest payment terms	Semiannually in arrears: March 1 and September 1

Long-Term Debt - Summary of Equ

Long-Term Debt - Summary of Equity and Liability Components of the Convertible Senior Notes (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Principal amount	$ 260,061	$ 147,985
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount	233,740	89,990
Unamortized discount	(17,354)	(6,795)
Liability component - net carrying value before issuance costs	216,386	83,195
Equity component - conversion, net of offering costs	$ 31,051	$ 15,900

Long-Term Debt (3.95% Promissor

Long-Term Debt (3.95% Promissory Note) - Additional Information (Detail)	Feb. 27, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 15, 2016USD ($)
Debt Instrument [Line Items]
Outstanding balance under revolving credit facility		$ 9,441,000
Additional borrowings from revolving credit facility		$ 143,859,000	$ 18,200,000
Maximum borrowing limit				$ 9,550,000
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Outstanding balance under revolving credit facility	$ 9,441,000
Debt Instrument term	3 years
Additional borrowings from revolving credit facility	$ 109,000
Maximum borrowing limit	$ 9,550,000
Fixed annual interest rate	3.95%	3.95%
Debt instrument periodic payment	$ 50,000
Debt instrument, payment frequency description		Monthly
Number of installment payments	35
Date of initial payment	Mar. 17, 2017
Debt instrument, balloon payment to be paid	$ 8,891,000
Debt instruments, payment terms description		The promissory note may be repaid in part or in full at any time without penalty.

Long-Term Debt (3.75% Promissor

Long-Term Debt (3.75% Promissory Note) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Aug. 16, 2016
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt	$ 143,859	$ 18,200
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Secured loan agreement period	20 years
Proceeds from the issuance of long-term debt	$ 9,000
Fixed annual interest rate	3.75%		3.75%
Debt instrument, payment frequency description	240 monthly
Debt instrument periodic payment	$ 53
Debt instruments, payment terms description	The promissory note may be repaid in full after September 1, 2017 as long as the Company provides at least 60 days' written notice and pays a prepayment premium as specified in the loan agreement. In addition, the lender may require full payment of the outstanding principal and unpaid interest on September 1, 2031 provided a written notice of its intention to call the note is given at least six months in advance.
Outstanding principal and interest payment due date	Sep. 1, 2031

Long-Term Debt (4% Promissory N

Long-Term Debt (4% Promissory Note) - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 14, 2016	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Proceeds from the issuance of long-term debt		$ 143,859	$ 18,200
4% Promissory Note [Member]
Debt Instrument [Line Items]
Secured loan agreement period	15 years
Proceeds from the issuance of long-term debt	$ 9,200
Fixed annual interest rate	4.00%	4.00%
Debt instrument, payment frequency description	180 monthly
Debt instrument periodic payment	$ 68
Debt instruments, payment terms description		The promissory note may be repaid in full after February 1, 2017 as long as the Company provides at least 60 days' written notice and pays a prepayment premium as specified in the loan agreement. The proceeds were used for real estate development projects or other general business purposes.

Reinsurance - Additional Inform

Reinsurance - Additional Information (Detail)	1 Months Ended		4 Months Ended	12 Months Ended
	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2017USD ($)Reinsurers	Dec. 31, 2017USD ($)Reinsurers	Dec. 31, 2016USD ($)Reinsurers	Dec. 31, 2015USD ($)
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Percentage of ceding commission on ceded premiums written			30.00%	30.00%
Excess of loss reinsurance contract period				3 years
Reinsurance recoverable			$ 100,760,000	$ 100,760,000	$ 0	$ 0
Number of reinsurers | Reinsurers			37	37	35
Recoveries pertaining to reinsurance contracts				$ 103,104,000	$ 0
Number of reinsurers in which major reinsurance recoverable concentrated | Reinsurers			2	2
Percentage of reinsurance recoverable major reinsurers				29.70%
Percentage of assumed premiums to net premium earned				4.90%	2.50%	22.00%
Credit risk associated with reinsurance receivables			$ 0	$ 0
Ceded losses recognized as a reduction in losses and LAE				214,082,000
Net reduction in premiums ceded					$ 12,677,000	$ 18,322,000
Net increase in premiums ceded				5,740,000
Amount received from retrospective reinsurance contracts	$ 5,716,000	$ 37,800,000
Other assets			10,550,000	10,550,000	11,342,000
Prepaid reinsurance premiums			22,286,000	22,286,000	24,554,000
Oxbridge [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and LAE				7,400,000
Net reduction in premiums ceded					1,929,000	$ 2,797,000
Net increase in premiums ceded				933,000
Amount received from retrospective reinsurance contracts		$ 7,560,000
Other assets			479,000	479,000	1,043,000
Prepaid reinsurance premiums			0	0	338,000
Reinsurance [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Other assets			2,393,000	2,393,000	5,810,000
Prepaid reinsurance premiums			$ 0	$ 0	$ 2,152,000

Reinsurance - Impact of the Rei

Reinsurance - Impact of the Reinsurance Treaties on Premiums Written and Earned (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Premiums Written:
Direct													$ 346,188	$ 352,803	$ 393,009
Assumed													1,158	14,388	3,329
Gross written													347,346	367,191	396,338
Ceded													(133,635)	(135,051)	(140,614)
Net premiums written													213,711	232,140	255,724
Premiums Earned:
Direct													347,235	372,699	360,878
Assumed													11,018	5,979	62,242
Gross earned													358,253	378,678	423,120
Ceded													(133,635)	(135,051)	(140,614)
Net premiums earned	$ 55,771	$ 43,964	$ 61,847	$ 63,036	$ 63,352	$ 63,300	$ 58,528	$ 58,447	$ 61,626	$ 62,765	$ 76,387	$ 81,728	$ 224,618	$ 243,627	$ 282,506

Losses and Loss Adjustment E111

Losses and Loss Adjustment Expenses - Losses and LAE (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross balance, beginning of year	$ 70,492	$ 51,690	$ 48,908
Incurred, net of reinsurance, related to:
Current year	146,922	104,128	78,325
Prior years	18,707	20,539	8,899
Total incurred, net of reinsurance	165,629	124,667	87,224
Paid, net of reinsurance, related to:
Current year	(87,770)	(64,812)	(51,095)
Prior years	(50,533)	(41,053)	(33,347)
Total paid, net of reinsurance	(138,303)	(105,865)	(84,442)
Net balance, end of year	97,818	70,492	51,690
Add: reinsurance recoverable	100,760
Gross balance, end of year	$ 198,578	$ 70,492	$ 51,690

Losses and Loss Adjustment E112

Losses and Loss Adjustment Expenses - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	$ 18,707	$ 20,539	$ 8,899
Reserve Strengthening [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	16,200
2015 and 2016 Loss Years [Member
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	17,869
Accident Year 2017 [Member] | Hurricane Irma [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Preliminary losses estimated	267,000
Preliminary net loss estimated	54,000
Accident Year 2016 [Member] | Hurricane Matthew [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	$ 2,500

Losses and Loss Adjustment E113

Losses and Loss Adjustment Expenses - Schedule of Incurred and Paid Claims Development (Detail) $ in Thousands	Dec. 31, 2017USD ($)Claims	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Dec. 31, 2012USD ($)
Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 504,617
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	422,450
All outstanding liabilities before 2012, net of reinsurance	538
Liabilities for losses and loss adjustment, net of reinsurance	82,705
Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	3,411
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	2,103
Liabilities for losses and loss adjustment, net of reinsurance	1,308
Any Hurricane Prior to 2017 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	24,297
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	20,188
Liabilities for losses and loss adjustment, net of reinsurance	4,109
Hurricane Irma [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	53,430
Total of IBNR Plus Expected Development on Reported Claims	$ 9,614
Cumulative Number of Reported Claims | Claims	17,862
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 43,742
Liabilities for losses and loss adjustment, net of reinsurance	9,688
Accident Year 2012 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	66,465	$ 67,058	$ 66,505	$ 64,083	$ 62,742	$ 66,425
Total of IBNR Plus Expected Development on Reported Claims	$ 155
Cumulative Number of Reported Claims | Claims	6,617
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 65,903	64,667	62,836	59,041	53,225	$ 36,914
Accident Year 2013 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	71,604	72,020	69,906	69,932	67,579
Total of IBNR Plus Expected Development on Reported Claims	$ 540
Cumulative Number of Reported Claims | Claims	7,003
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 70,224	68,106	64,257	57,374	$ 40,240
Accident Year 2014 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	88,054	84,917	81,773	75,810
Total of IBNR Plus Expected Development on Reported Claims	$ 2,350
Cumulative Number of Reported Claims | Claims	7,649
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 82,463	77,712	68,897	$ 47,650
Accident Year 2015 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	96,173	90,902	78,017
Total of IBNR Plus Expected Development on Reported Claims	$ 4,398
Cumulative Number of Reported Claims | Claims	7,627
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 87,784	76,042	50,939
Accident Year 2015 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	569	401	308
Total of IBNR Plus Expected Development on Reported Claims	$ 2
Cumulative Number of Reported Claims | Claims	100
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 464	332	$ 156
Accident Year 2016 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	90,878	81,446
Total of IBNR Plus Expected Development on Reported Claims	$ 12,840
Cumulative Number of Reported Claims | Claims	6,863
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 73,037	51,663
Accident Year 2016 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,314	1,005
Total of IBNR Plus Expected Development on Reported Claims	$ 41
Cumulative Number of Reported Claims | Claims	228
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,155	689
Accident Year 2016 [Member] | Any Hurricane Prior to 2017 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	24,126	21,414
Total of IBNR Plus Expected Development on Reported Claims	$ 3,435
Cumulative Number of Reported Claims | Claims	2,410
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 20,025	$ 12,227
Accident Year 2017 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	91,443
Total of IBNR Plus Expected Development on Reported Claims	$ 37,388
Cumulative Number of Reported Claims | Claims	5,325
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 43,039
Accident Year 2017 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,528
Total of IBNR Plus Expected Development on Reported Claims	$ 866
Cumulative Number of Reported Claims | Claims	144
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 484
Accident Year 2017 [Member] | Any Hurricane Prior to 2017 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 171
Cumulative Number of Reported Claims | Claims	113
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 163

Losses and Loss Adjustment E114

Losses and Loss Adjustment Expenses - Reconciliation of Net Incurred and Paid Loss Development Tables to Liability for Losses and Loss Adjustment Expenses (Detail) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	$ 198,578,000	$ 70,492,000	$ 51,690,000	$ 48,908,000
Reinsurance recoverables	100,760,000	$ 0	$ 0
Total gross liability for unpaid losses and loss adjustment expenses	198,578,000
Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	82,705,000
Homeowners Wind-only Insurance [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	1,308,000
Losses Specific to Any Hurricane Prior to 2017 [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	4,109,000
Hurricane Irma [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	9,688,000
Other Short-duration Insurance Product Lines [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	$ 8,000

Losses and Loss Adjustment E115

Losses and Loss Adjustment Expenses - Supplementary and Unaudited Information about Average Historical Claims Duration (Detail)	Dec. 31, 2017
Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	53.80%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	24.40%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	10.10%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 4	5.50%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 5	2.90%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 6	1.90%
Homeowners Wind-only Insurance [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	37.20%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	33.20%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	8.70%
Losses Specific to Any Hurricane Prior to 2017 [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	51.00%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	32.30%
Hurricane Irma [Member]
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	81.90%

Segment Information - Additiona

Segment Information - Additional Information (Detail) - Segments	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Number of operating divisions	4
Sales Revenue, Net [Member] | Segment Concentration Risk [Member] | Insurance Operations [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	96.20%	95.50%	97.50%
Assets [Member] | Segment Concentration Risk [Member] | Insurance Operations [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	87.10%	87.90%	91.80%

Segment Information - Summary o

Segment Information - Summary of Segment Information Reconciled to Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	Aug. 16, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 15, 2016	Dec. 31, 2015
Revenue:
Net premiums earned		$ 55,771	$ 43,964	$ 61,847	$ 63,036	$ 63,352	$ 63,300	$ 58,528	$ 58,447	$ 61,626	$ 62,765	$ 76,387	$ 81,728	$ 224,618	$ 243,627		$ 282,506
Net investment income (loss)														11,439	9,087		3,978
Net realized investment (losses) gains														4,346	2,601		(608)
Net unrealized investment gains														92
Net other-than-temporary impairment losses														(1,467)	(2,482)		(4,681)
Policy fee income														3,622	3,914		3,496
Gain on repurchases of convertible senior notes															153
Gain on bargain purchase	$ 2,071														2,071
Gain on remeasurement of previously held interest															4,005	$ 4,005
Other														1,756	1,470		1,261
Total revenue		61,623	47,490	67,580	67,713	72,371	69,808	61,520	60,747	63,412	61,262	79,068	82,210	244,406	264,446		285,952
Expenses:
Losses and loss adjustment expenses		23,204	89,231	27,665	25,529	45,406	25,909	26,272	27,080	21,420	26,200	20,565	19,039	165,629	124,667		87,224
Amortization of deferred policy acquisition costs														35,663	37,868		36,224
Interest expense		4,439	4,408	4,378	3,542	2,967	2,672	2,611	2,829	2,716	2,698	2,679	2,661	16,767	11,079		10,754
Loss on repurchases of senior notes														743
Depreciation and amortization														1,238	1,272		1,338
Other operating expenses														39,990	42,704		44,220
Total operating expenses														260,030	217,590		179,760
Income (loss) before income taxes		$ 16,947	$ (66,018)	$ 14,305	$ 19,142	$ 5,901	$ 20,029	$ 11,229	$ 9,697	$ 17,625	$ 11,938	$ 35,583	$ 41,046	(15,624)	46,856		106,192
Operating Segments [Member] | Insurance Operations [Member]
Revenue:
Net premiums earned														224,618	243,627		282,506
Net investment income (loss)														9,898	8,440		6,841
Net realized investment (losses) gains														3,978	2,450		(716)
Net other-than-temporary impairment losses														(1,258)	(2,467)		(4,606)
Policy fee income														3,622	3,914		3,496
Other														693	684		564
Total revenue														241,551	256,648		288,085
Expenses:
Losses and loss adjustment expenses														165,629	124,667		87,224
Amortization of deferred policy acquisition costs														35,663	37,868		36,224
Depreciation and amortization														128	158		185
Other operating expenses														27,547	31,351		30,665
Total operating expenses														228,967	194,044		154,298
Income (loss) before income taxes														12,584	62,604		133,787
Total revenue from non-affiliates														241,551	256,648		288,085
Operating Segments [Member] | Real Estate Operations [Member]
Revenue:
Net investment income (loss)														6	18		5
Gain on bargain purchase															2,071
Gain on remeasurement of previously held interest															4,005
Other														7,046	4,505		4,095
Total revenue														7,052	10,599		4,100
Expenses:
Interest expense														1,250	561		15
Depreciation and amortization														2,121	814		603
Other operating expenses														4,022	2,921		2,822
Total operating expenses														7,393	4,296		3,440
Income (loss) before income taxes														(341)	6,303		660
Total revenue from non-affiliates														5,525	9,072		2,612
Operating Segments [Member] | Corporate and Other [Member]
Revenue:
Net investment income (loss)														2,974	1,162		(1,971)
Net realized investment (losses) gains														368	151		108
Net unrealized investment gains														92
Net other-than-temporary impairment losses														(209)	(15)		(75)
Gain on repurchases of convertible senior notes															153
Other														4,417	4,104		3,209
Total revenue														7,642	5,555		1,271
Expenses:
Interest expense														15,704	10,518		10,739
Loss on repurchases of senior notes														743
Depreciation and amortization														939	908		920
Other operating expenses														18,123	16,180		17,867
Total operating expenses														35,509	27,606		29,526
Income (loss) before income taxes														(27,867)	(22,051)		(28,255)
Total revenue from non-affiliates														6,958	5,470		1,104
Intersegment Eliminations [Member]
Revenue:
Net investment income (loss)														(1,439)	(533)		(897)
Other														(10,400)	(7,823)		(6,607)
Total revenue														(11,839)	(8,356)		(7,504)
Expenses:
Interest expense														(187)
Depreciation and amortization														(1,950)	(608)		(370)
Other operating expenses														(9,702)	(7,748)		(7,134)
Total operating expenses														$ (11,839)	$ (8,356)		$ (7,504)

Segment Information - Summar118

Segment Information - Summary of Segment Assets Reconciled to Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total assets	$ 842,264	$ 670,064
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	(18,464)	(98,712)
Insurance Operations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	652,754	651,927
Real Estate Operations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	80,152	71,226
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	$ 127,822	$ 45,623

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal	$ (3,933)	$ 14,918	$ 34,768
State	34	2,666	5,856
Foreign	81	96	68
Total current taxes	(3,818)	17,680	40,692
Deferred:
Federal	(4,144)	182	(275)
State	(757)	(9)	(46)
Foreign	(12)	(18)	(40)
Total deferred taxes	(4,913)	155	(361)
Income tax (benefit) expense	$ (8,731)	$ 17,835	$ 40,331

Income Taxes - Summarized the D

Income Taxes - Summarized the Differences Between the Statutory Federal Income Tax Rate and the Effective Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income taxes at statutory rate	$ (5,468)	$ 16,395	$ 37,167
State income taxes, net of federal tax benefits	(657)	1,710	3,783
Effects of tax rate changes	(1,400)
Share-based compensation	(705)
Other	(501)	(270)	(619)
Income tax (benefit) expense	$ (8,731)	$ 17,835	$ 40,331
Income taxes at statutory rate, percentage	35.00%	35.00%	35.00%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal tax benefits, percentage	4.20%	3.60%	3.60%
Effects of tax rate changes, percentage	9.00%
Share-based compensation, percentage	4.50%
Other, percentage	3.20%	(0.50%)	(0.60%)
Income tax (benefit) expense	55.90%	38.10%	38.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Line Items]
Uncertain tax positions or unrecognized tax benefits			$ 0	$ 0	$ 0
Accrued interest and penalty		$ 0	$ 0	$ 0
Income taxes at statutory rate, percentage		35.00%	35.00%	35.00%
Effects of tax rate		$ (1,400,000)
Valuation Allowance		$ 0	$ 0
Illiquid Assets [Member]
Income Tax Disclosure [Line Items]
Percentage of mandatory one time tax		8.00%
Cash and Cash Equivalents [Member]
Income Tax Disclosure [Line Items]
Percentage of mandatory one time tax		15.50%
Tax Year 2017 [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforward		$ 7,665,000
Net operating loss carryforward expiration date		Dec. 31, 2037
Tax Year 2016 [Member]
Income Tax Disclosure [Line Items]
Capital loss carryforward		$ 1,926,000
Tax Year 2015 [Member]
Income Tax Disclosure [Line Items]
Capital loss carryforward		$ 1,826,000
Minimum [Member]
Income Tax Disclosure [Line Items]
Percentage of shareholding by controlled foreign corporations and other specified foreign corporations		10.00%
Scenario, Forecast [Member]
Income Tax Disclosure [Line Items]
Income taxes at statutory rate, percentage	21.00%

Income Taxes - Significant Comp

Income Taxes - Significant Components of Deferred Income Taxes (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Unearned premiums	$ 5,753	$ 9,331
Other-than-temporary impairment losses	386	1,246
Losses and loss adjustment expenses	3,154	986
Organizational costs	90	61
Stock-based compensation	2,455	3,388
Accrued expenses		35
Unearned revenue	339	489
State net operating losses	333
State capital loss carryforwards	175	65
Bad debt reserve	2	3
Total deferred tax assets	12,687	15,604
Deferred tax liabilities:
Property and equipment	(1,517)	(1,857)
Intangible assets	(1,541)	(1,890)
Deferred policy acquisition costs	(4,365)	(6,601)
Unrealized net gain on available-for-sale securities	(1,907)	(1,659)
Basis difference related to partnership investments	(599)	(5)
Basis difference related to convertible senior notes	(4,099)	(2,519)
Prepaid expenses	(312)	(412)
Accrued expenses	(37)
Other	(200)	(411)
Total deferred tax liabilities	$ (14,577)	$ (15,354)

Income Taxes - Significant C123

Income Taxes - Significant Components of Net Deferred Income Tax Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Total deferred tax assets	$ 12,687	$ 15,604
Total deferred tax liabilities	(14,577)	(15,354)
Net deferred tax liabilities	$ (1,890)
Net deferred tax assets		$ 250

Earnings Per Share - Summary of

Earnings Per Share - Summary of Numerator and Denominator of Basic and Fully Diluted (Loss) Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Basic Earnings Per Share:
Income allocated to common stockholders, Income (Numerator)													$ (6,412)	$ 27,476	$ 62,463
Income allocated to common stockholders, Shares (Denominator)														9,326	9,602
Income allocated to common stockholders, Per Share Amount	$ 1.37	$ (4.44)	$ 1.05	$ 1.27	$ 0.47	$ 1.17	$ 0.71	$ 0.60	$ 1.12	$ 0.72	$ 2.17	$ 2.50	$ (0.75)	$ 2.95	$ 6.51
Net income (loss)	$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378	$ (6,893)	$ 29,021	$ 65,861
Effect of Dilutive Securities:
Less: Income attributable to participating securities													$ 481	(1,545)	(3,398)
Diluted Earnings Per Share:
Income available to common stockholders and assumed conversions, Income (Numerator)														$ 31,720	$ 66,968
Income available to common stockholders and assumed conversions, Shares (Denominator)														10,873	11,355
Income available to common stockholders and assumed conversions, Per Share Amount	$ 1.14	$ (4.44)	$ 0.93	$ 1.15	$ 0.47	$ 1.10	$ 0.71	$ 0.60	$ 1.05	$ 0.71	$ 1.93	$ 2.21	$ (0.75)	$ 2.92	$ 5.90
Basic and Diluted Loss Per Share:
Income (loss) allocated to common stockholders, Income (loss) (Numerator)													$ (6,412)	$ 27,476	$ 62,463
Income allocated to common stockholders, Shares (Denominator)													8,558
Income allocated to common stockholders, Per Share Amount													$ (0.75)
Net income (loss)	$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378	$ (6,893)	29,021	65,861
Less: Income attributable to participating securities													$ 481	(1,545)	(3,398)
Convertible Senior Notes [Member]
Effect of Dilutive Securities:
Dilutive Securities, Income (Numerator)														$ 4,244	$ 4,505
Dilutive Securities, Shares (Denominator)														1,493	1,651
Stock Options [Member]
Effect of Dilutive Securities:
Dilutive Securities, Income (Numerator)														$ 0	$ 0
Dilutive Securities, Shares (Denominator)														54	102

Stockholders' Equity (Common St

Stockholders' Equity (Common Stock) - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Stock repurchased and retired, total costs	$ 21,318,000	$ 464,000	$ 792,000
Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, shares	437,240	14,934	17,493
2017 Plan [Member]
Class of Stock [Line Items]
Common stock repurchase authorized amount	$ 20,000,000
Time through the company is allowed to repurchase shares	Dec. 31, 2018
Share Repurchase Plan [Member]
Class of Stock [Line Items]
Stock repurchased and retired, total costs	$ 15,154,000	$ 20,026,000	$ 1,610,000
Share Repurchase Plan [Member] | Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, shares	433,175	643,703	37,869
Share Repurchase Plan [Member] | 2016 and 2015 Plan [Member]
Class of Stock [Line Items]
Common stock repurchase authorized amount		$ 20,000,000	$ 20,000,000
Common stock repurchased and retired, weighted average price	$ 34.94	$ 31.07
Stock repurchased and retired, total costs	$ 15,155,000	$ 20,026,000
Fees and commissions average price repurchase common stock	$ 34.98	$ 31.11
Share Repurchase Plan [Member] | 2016 and 2015 Plan [Member] | Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, shares	433,175	643,703

Stockholders' Equity (Series B

Stockholders' Equity (Series B Junior Participating Preferred Share Purchase Right) - Additional Information (Detail) - Share Repurchase Plan [Member] - Series B Junior Participating Preferred Stock [Member]	1 Months Ended	12 Months Ended
	Oct. 31, 2013Right$ / shares	Dec. 31, 2017
Subsequent Event [Line Items]
Dividends Payable, Right Per Share | Right	1
Exercise price per one one-hundredth of each preferred share	$ 125
Purchase right of common shareholder		One one-hundredth
Expiry of preferred stock purchase rights		Oct. 18, 2018
Minimum percentage of ownership that triggers exercise rights	10.00%
Number of days that must lapse after ownership percentage change	10 days
Preferred stock purchase right exchange or redemption price	$ 0.001

Stockholders' Equity (Share Rep

Stockholders' Equity (Share Repurchase Agreement) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Apr. 03, 2017	Mar. 03, 2017
Class of Stock [Line Items]
Repurchase and retirement of common stock, value	$ 21,318	$ 464	$ 792
Share Repurchase Plan [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, value	15,154	$ 20,026	$ 1,610
Institutional Investors [Member] | Share Repurchase Plan [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, value	$ 20,345
Repurchase and retirement of common stock, shares	413,600
Common stock repurchased and retired, price per share	$ 49.19
4.25% Convertible Senior Notes [Member]
Class of Stock [Line Items]
Debt instrument stated interest rate	4.25%			4.25%	4.25%

Stockholders' Equity (Prepaid S

Stockholders' Equity (Prepaid Share Repurchase Forward Contract) - Additional Information (Detail) - Share Repurchase Plan [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)shares
Subsequent Event [Line Items]
Number of outstanding prepaid share repurchase forward contract	2
Deutsche Bank AG, London Branch [Member] | 3.875% Convertible Senior Notes [Member]
Subsequent Event [Line Items]
Repurchase of common stock under prepaid forward contract | $	$ 29,923
Repurchase of Common stock, shares | shares	622,751
Prepaid stock repurchases forward contract settlement period	2,019
Societe Generale [Member] | 4.25% Convertible Senior Notes [Member]
Subsequent Event [Line Items]
Repurchase of common stock under prepaid forward contract | $	$ 9,400
Repurchase of Common stock, shares | shares	191,100
Prepaid stock repurchases forward contract settlement period	2,022

Stockholders' Equity (Preferred

Stockholders' Equity (Preferred Stock) - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017shares	Dec. 31, 2013Vote$ / sharesshares	Dec. 31, 2016shares
Subsequent Event [Line Items]
Preferred shares issued	0		0
Preferred shares outstanding	0		0
Preferred shares Authorized	18,100,000		18,100,000
Additional shares of preferred stock authorized to issue, no par value	18,100,000
Series B Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred shares issued	0		0
Preferred shares outstanding	0		0
Preferred shares Authorized	400,000	400,000	400,000
Minimum dividend payment per shares | $ / shares		$ 1
Ratio of maximum aggregate preferred stock dividend to common stock dividend per share		100
Number of votes per shares | Vote		100
Ratio of maximum aggregate preferred stock liquidation payment to common stock liquidation payment		100
Series B Preferred Stock [Member] | Minimum [Member]
Subsequent Event [Line Items]
Preferred stock liquidation preference | $ / shares		$ 100
Series A Cumulative Convertible Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred shares issued	0		0
Preferred shares outstanding	0		0

Stock-Based Compensation (Incen

Stock-Based Compensation (Incentive Plans) - Additional Information (Detail) - Omnibus Incentive Plan New Plan 2012 [Member] - shares	Dec. 31, 2017	Mar. 17, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for grant	1,995,655
Common shares reserved for future issuance		3,000,000	5,000,000

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock Options) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of common stock options, shares	30,000	60,000	120,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option contractual term	10 years
Exercise of common stock options, shares			120,000
Options were net settled			30,000
Surrender of Shares			2,013
Recognized compensation expenses	$ 306	$ 0	$ 0
Deferred tax benefits recognized	78	0	$ 0
Unrecognized compensation expense related to nonvested stock options	$ 941	$ 0
Recognition of remaining compensation expense over a weighted-average period	3 years
Stock Options [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options maximum vesting period	5 years

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Company's Stock Option Plan Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted, Number of options	110,000
Exercised, Number of Options	(30,000)	(60,000)	(120,000)
Outstanding, Number of Options	130,000	50,000	110,000	230,000
Exercisable, Number of Options	20,000
Granted, Weighted Average Exercise Price	$ 40
Exercised, Weighted-Average Exercise Price	2.50	$ 2.50	$ 2.82
Outstanding, Weighted Average Exercise Price	34.82	$ 4.02	$ 3.19	$ 3
Exercisable, Weighted-Average Exercise Price	$ 6.30
Outstanding, Weighted-Average Remaining Contractual Term	8 years 2 months 12 days	2 years 3 months 19 days	2 years 3 months 19 days	3 years
Exercisable, Weighted-Average Remaining Contractual Term	3 years 8 months 12 days
Outstanding, Aggregate Intrinsic Value	$ 472	$ 1,773	$ 3,482	$ 9,256
Exercisable, Aggregate Intrinsic Value	$ 472

Stock-Based Compensation - Info

Stock-Based Compensation - Information about Options Exercised (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share Based Compensation Arrangement By Share Based Payment Award Options Activity [Abstract]
Options exercised	30,000	60,000	120,000
Total intrinsic value of exercised options	$ 1,319	$ 1,376	$ 4,551
Tax benefits realized	$ 509	$ 501	$ 1,697

Stock-Based Compensation - Assu

Stock-Based Compensation - Assumptions Used to Estimate the Fair Value of Stock Options Granted (Detail)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected dividend yield	3.53%
Expected volatility	42.86%
Risk-free interest rate	1.92%
Expected life (in years)	5 years

Stock Based Compensation - Info

Stock Based Compensation - Information with Respect to Unvested Restricted Stock Awards Stock Option and Incentive Plan (Detail) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, shares	542,503	620,513	639,705
Granted, Number of Restricted Stock Awards	154,936	142,440	83,260
Vested, Number of Restricted Stock Awards	(75,983)	(47,152)	(59,695)
Cancelled, Number of Restricted Stock Awards		(160,000)
Forfeited, Number of Restricted Stock Awards	(23,766)	(13,298)	(42,757)
Ending balance, shares	597,690	542,503	620,513
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$ 30.81	$ 30.33	$ 28.33
Granted, Weighted-Average Grant Date Fair Value	42.92	32.35	44.46
Vested, Weighted-Average Grant Date Fair Value	37.95	42.27	30.13
Cancelled, Weighted-Average Grant Date Fair Value		26.27
Forfeited, Weighted-Average Grant Date Fair Value	36.32	39.06	28.15
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$ 32.82	$ 30.81	$ 30.33

Stock-Based Compensation (Restr

Stock-Based Compensation (Restricted Stock Awards) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized compensation expenses	$ 4,217	$ 4,198	$ 5,212
Total unrecognized compensation expense, Nonvested restricted stock arrangements granted	$ 9,101	$ 7,531
Recognition of remaining compensation expense over a weighted-average period	32 months
Awards issued during the period	154,936	142,440	83,260
Other Than Time-based Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards issued during the period	0	0	0

Stock-Based Compensation - I137

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) - Restricted Stock [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred tax benefits recognized	$ 970	$ 1,619	$ 1,453
Tax benefits realized for restricted stock and paid dividends	1,396	140	598
Fair value of vested restricted stock	$ 2,884	$ 1,993	$ 1,798

Employee Benefit Plan - Additio

Employee Benefit Plan - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017USD ($)Plans	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
US Employees [Member]
Employee Benefit Plan [Line Items]
Maximum percentage of employee contribution	100.00%
Company contribution in the plan	$ 560	$ 415	$ 371
India Employees [Member]
Employee Benefit Plan [Line Items]
Employment benefit accrued	$ 58,000	42,000
Matching contribution, number of defined contribution plans | Plans	2
Defined benefit plan amount recognized	$ 17,000	$ 14,000	$ 9,000
Maximum [Member] | US Employees [Member]
Employee Benefit Plan [Line Items]
Maximum percentage of employer contribution	4.00%
Deferred Profit Sharing [Member] | US Employees [Member]
Employee Benefit Plan [Line Items]
Company contribution in the plan	$ 0

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Contract	Dec. 31, 2016USD ($)ft²	Dec. 31, 2015USD ($)
Commitment And Contingencies [Line Items]
Number of multi year reinsurance contracts | Contract	3
Percentage increase in monthly rental payment		5.00%
Rental expense under all facility leases	$ 336	$ 333	$ 304
Percentage increase in monthly service agreement payment	5.00%
Unfunded Balance	$ 14,328	$ 13,554
Noida, India [Member]
Commitment And Contingencies [Line Items]
Company agreement to lease | ft²		15,000

Commitments and Contingencie140

Commitments and Contingencies - Summary of Contractual Obligations (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Purchase Obligation, Fiscal Year Maturity [Abstract]
2,018	$ 21,792
2,019	2,392
2,020	1,196
Total	$ 25,380

Commitments and Contingencie141

Commitments and Contingencies - Summary of Contractual Obligations (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2017
Purchase Obligation, Fiscal Year Maturity [Abstract]
Number of multi-year flood reinsurance contracts	1

Commitments and Contingencie142

Commitments and Contingencies - Minimum Future Rental Payments Under Operating Leases (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,018	$ 147
2,019	142
2,020	150
2,021	157
Total minimum future payments	$ 596

Commitments and Contingencie143

Commitments and Contingencies - Minimum Future Payments Under the Service Agreements (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,018	$ 24
2,019	26
2,020	27
2,021	28
Total minimum future payments	$ 105

Commitments and Contingencie144

Commitments and Contingencies - Rental Income Due Under Non-Cancellable Operating Leases (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Commitments and Contingencies Disclosure [Abstract]
2,018	$ 4,227
2,019	4,073
2,020	3,651
2,021	3,048
2,022	2,558
Thereafter	13,786
Total	$ 31,343

Quarterly Results of Operati145

Quarterly Results of Operations - Summarize Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Net premiums earned	$ 55,771	$ 43,964	$ 61,847	$ 63,036	$ 63,352	$ 63,300	$ 58,528	$ 58,447	$ 61,626	$ 62,765	$ 76,387	$ 81,728	$ 224,618	$ 243,627	$ 282,506
Total revenue	61,623	47,490	67,580	67,713	72,371	69,808	61,520	60,747	63,412	61,262	79,068	82,210	244,406	264,446	285,952
Losses and loss adjustment expenses	23,204	89,231	27,665	25,529	45,406	25,909	26,272	27,080	21,420	26,200	20,565	19,039	165,629	124,667	87,224
Policy acquisition and other underwriting expenses	10,018	9,926	10,070	9,649	10,117	10,536	10,879	11,110	11,067	10,675	10,443	9,799	39,663	42,642	41,984
Interest expense	4,439	4,408	4,378	3,542	2,967	2,672	2,611	2,829	2,716	2,698	2,679	2,661	16,767	11,079	10,754
Total expenses	44,676	113,508	53,275	48,571	66,470	49,779	50,291	51,050	45,787	49,324	43,485	41,164
Income (loss) before income taxes	16,947	(66,018)	14,305	19,142	5,901	20,029	11,229	9,697	17,625	11,938	35,583	41,046	(15,624)	46,856	106,192
Net income	12,091	(40,546)	9,542	12,020	4,608	11,333	7,024	6,056	11,090	7,371	22,022	25,378	(6,893)	29,021	65,861
Comprehensive income	$ 11,914	$ (38,792)	$ 8,959	$ 12,949	$ 2,380	$ 12,487	$ 10,742	$ 7,846	$ 11,516	$ 5,023	$ 19,856	$ 27,009	$ (4,970)	$ 33,455	$ 63,404
Earnings per share:
Basic	$ 1.37	$ (4.44)	$ 1.05	$ 1.27	$ 0.47	$ 1.17	$ 0.71	$ 0.60	$ 1.12	$ 0.72	$ 2.17	$ 2.50	$ (0.75)	$ 2.95	$ 6.51
Diluted	$ 1.14	$ (4.44)	$ 0.93	$ 1.15	$ 0.47	$ 1.10	$ 0.71	$ 0.60	$ 1.05	$ 0.71	$ 1.93	$ 2.21	$ (0.75)	$ 2.92	$ 5.90

Regulatory Requirements and 146

Regulatory Requirements and Restrictions - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2018USD ($)
Statutory Accounting Practices [Line Items]
Payment of dividends	$ 95,310,000
Minimum percentage of capital and surplus requires to maintain by Company	10.00%
Statutory capital and surplus	$ 153,000,000	$ 183,000,000	$ 195,000,000
Dividend distribution open capital surplus under condition 1	10.00%
Dividend distribution open capital surplus under condition 2	10.00%
Percentage of unrealized capital gain under condition 2	25.00%
Dividend distribution open capital surplus under condition 3	10.00%
Percentage of unrealized capital gain under condition 3	25.00%
Restricted net assets of Company's insurance subsidiaries	$ 180,286,000	148,999,000
HCPCI Domiciled in Florida [Member]
Statutory Accounting Practices [Line Items]
Statutory net income (loss) Amount	$ (10,500,000)	5,900,000	57,400,000
Statutory accounting practices, Future dividend payments restrictions, Capital Surplus Percentage	10.00%
Statutory accounting practices, Future dividend payments restrictions, Statutory Capital surplus Percentage	115.00%
Statutory accounting practices, Future dividend payments restrictions, Notice Period	30 days
Premium to capital surplus ratios, percentage of written premiums	90.00%
TypTap [Member]
Statutory Accounting Practices [Line Items]
Statutory capital and surplus	$ 24,000,000	25,000,000
Statutory net income (loss) Amount	$ 797,000	$ 364,000
Premium to capital surplus ratio for gross written premiums	0.33	0.09
Premium to capital surplus ratio for net written premiums	0.27	0.07
HCPCI and TypTap [Member]
Statutory Accounting Practices [Line Items]
Deposit in Trust with state regulatory authorities	$ 300,000
Claddaugh Domiciled in Bermuda [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	2,000,000
Statutory capital and surplus	63,000,000	$ 88,000,000
Statutory net income (loss) Amount	(5,200,000)	13,200,000	9,900,000
Payment of cash dividend to parent	20,000,000	0	$ 0
Us Insurance Subsidiaries [Member]
Statutory Accounting Practices [Line Items]
Statutory capital and surplus	$ 177,000,000
Maximum [Member] | Insurance Subsidiaries Domiciled in Florida [Member]
Statutory Accounting Practices [Line Items]
Premium to capital surplus ratio for gross written premiums	10
Premium to capital surplus ratio for net written premiums	4
Minimum [Member] | HCPCI Domiciled in Florida [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 25,900,000	22,550,000
Minimum [Member] | TypTap [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	20,000,000	$ 20,000,000
Minimum [Member] | TypTap [Member] | Scenario, Forecast [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required				$ 20,000,000
Minimum [Member] | Us Insurance Subsidiaries [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 45,900,000

Regulatory Requirements and 147

Regulatory Requirements and Restrictions - Summary of Required Ratio of Gross and Net Written Premium to Surplus (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
HCPCI [Member]
Statutory Accounting Practices [Line Items]
Premium to capital surplus ratio for gross written premiums	2.01	1.81	1.85
Premium to capital surplus ratio for net written premiums	1.11	1.07	1
TypTap [Member]
Statutory Accounting Practices [Line Items]
Premium to capital surplus ratio for gross written premiums	0.33	0.09
Premium to capital surplus ratio for net written premiums	0.27	0.07

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2017USD ($)	Dec. 31, 2017USD ($)Directors	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Related Party Transaction [Line Items]
Fees incurred with respect to law firm	$ 6		$ 32	$ 50
Real Estate Transactions [Member] | Pineda Landings - Melbourne, Florida [Member]
Related Party Transaction [Line Items]
Fees incurred with respect to law firm			$ 20
Oxbridge [Member]
Related Party Transaction [Line Items]
Number of non-employee directors | Directors		3
Oxbridge [Member] | Period from June 1, 2015 through May 31, 2016 [Member]
Related Party Transaction [Line Items]
Assumed total covered exposure		$ 11,600
Transaction amount		3,340
Oxbridge [Member] | Period From June 1, 2016 Through May 31, 2017 [Member]
Related Party Transaction [Line Items]
Assumed total covered exposure		6,000
Transaction amount		3,400
Oxbridge [Member] | Period From June 1, 2017 Through May 31, 2018 [Member]
Related Party Transaction [Line Items]
Assumed total covered exposure		7,400
Premiums paid		$ 3,400

Condensed Financial Informat149

Condensed Financial Information of HCI Group, Inc. - Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 255,884	$ 280,531	$ 267,738	$ 314,416
Fixed-maturity securities, available for sale, at fair value	237,484	166,248
Equity securities, available for sale, at fair value	58,911	53,035
Equity securities, trading, at fair value	1,045	0
Limited partnership investments, at equity	23,184	29,263
Property and equipment, net	12,465	11,374
Income tax receivable	16,192	2,811
Other assets	10,550	11,342
Total assets	842,264	670,064
Liabilities and Stockholders' Equity
Deferred income taxes, net	1,890
Long-term debt	237,835	138,863
Total liabilities	648,289	426,318
Total stockholders' equity	193,975	243,746	237,722	182,585
Total liabilities and stockholders' equity	842,264	670,064
HCI Group [Member]
Assets
Cash and cash equivalents	53,755	2,297	$ 2,282	$ 32,082
Fixed-maturity securities, available for sale, at fair value	34,529	4,483
Equity securities, available for sale, at fair value	10,238	7,289
Equity securities, trading, at fair value	1,045
Limited partnership investments, at equity	15,232	21,906
Note receivable - related party	7,280
Investment in subsidiaries	310,779	411,398
Property and equipment, net	617	664
Income tax receivable	3,023	1,563
Other assets	1,019	940
Total assets	437,517	450,540
Liabilities and Stockholders' Equity
Accrued expenses and other liabilities	4,499	2,952
Deferred income taxes, net	2,511	949
Long-term debt	211,890	121,436
Due to related parties	24,642	81,457
Total liabilities	243,542	206,794
Total stockholders' equity	193,975	243,746
Total liabilities and stockholders' equity	$ 437,517	$ 450,540

Condensed Financial Informat150

Condensed Financial Information of HCI Group, Inc. - Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Net investment income (loss)													$ 11,439	$ 9,087	$ 3,978
Net realized gains													4,346	2,601	(608)
Net unrealized gains													92
Other-than-temporary impairment losses													(1,467)	(2,482)	(4,681)
Gain on repurchases of convertible senior notes														153
Other income													1,756	1,470	1,261
Loss on repurchases of senior notes													(743)
Interest expense	$ (4,439)	$ (4,408)	$ (4,378)	$ (3,542)	$ (2,967)	$ (2,672)	$ (2,611)	$ (2,829)	$ (2,716)	$ (2,698)	$ (2,679)	$ (2,661)	(16,767)	(11,079)	(10,754)
Operating expenses	(44,676)	(113,508)	(53,275)	(48,571)	(66,470)	(49,779)	(50,291)	(51,050)	(45,787)	(49,324)	(43,485)	(41,164)
Income tax benefit													8,731	(17,835)	(40,331)
Net (loss) income	$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378	(6,893)	29,021	65,861
HCI Group [Member]
Condensed Financial Statements, Captions [Line Items]
Net investment income (loss)													2,799	1,204	(2,401)
Net realized gains													367	151	108
Net unrealized gains													92
Other-than-temporary impairment losses													(209)	(15)	(75)
Gain on repurchases of convertible senior notes														153
Other income															30
Loss on repurchases of senior notes													(743)
Interest expense													(15,704)	(10,346)	(10,754)
Operating expenses													(5,489)	(5,158)	(7,346)
Loss before income tax benefit and equity in income of subsidiaries													(18,887)	(14,011)	(20,438)
Income tax benefit													9,605	4,878	7,835
Net loss before equity in income of subsidiaries													(9,282)	(9,133)	(12,603)
Equity in income of subsidiaries													2,389	38,154	78,464
Net (loss) income													$ (6,893)	$ 29,021	$ 65,861

Condensed Financial Informat151

Condensed Financial Information of HCI Group, Inc. - Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net (loss) income	$ 12,091	$ (40,546)	$ 9,542	$ 12,020	$ 4,608	$ 11,333	$ 7,024	$ 6,056	$ 11,090	$ 7,371	$ 22,022	$ 25,378	$ (6,893)	$ 29,021	$ 65,861
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Stock-based compensation													4,523	4,198	5,212
Net realized investment gains													(4,346)	(2,601)	608
Net unrealized investment gains													(92)
Amortization of premiums on investments in fixed-maturity securities													1,252	726	855
Depreciation and amortization													9,591	5,408	5,251
(Income) loss from limited partnership investments													(2,334)	(1,207)	3,244
Distributions from limited partnership interests													881	544	12
Other-than-temporary impairment losses													1,467	2,482	4,681
Gain on repurchases of convertible senior notes														(153)
Loss on repurchases of senior notes													743
Deferred income taxes													(4,913)	155	(361)
Changes in operating assets and liabilities:
Other assets													574	29,054	(7,230)
Accrued expenses and other liabilities													2,548	(2,223)	4,157
Income taxes payable													(13,381)	(1,192)	766
Net cash provided by operating activities													16,426	87,975	45,282
Cash flows from investing activities:
Investment in limited partnership interest													(4,226)	(4,670)	(24,636)
Purchase of fixed-maturity securities													(114,743)	(85,530)	(98,501)
Purchase of equity securities, available for sale													(46,909)	(22,434)	(32,878)
Purchase of equity securities, trading													(3,544)
Purchase of property and equipment													(2,340)	(865)	(840)
Proceeds from sales of fixed-maturity securities													31,759	40,454	53,711
Proceeds from calls, repayments and maturities of fixed-maturity securities													14,897	4,692	9,344
Proceeds from sales of equity securities, available for sale													42,657	23,127	25,695
Proceeds from sales of equity securities, trading													2,625
Distributions from limited partnership interests													11,758
Net cash used in investing activities													(80,164)	(49,028)	(80,374)
Cash flows from financing activities:
Repurchases of common stock													(30,718)	(464)	(792)
Repurchases of common stock under share repurchase plan													(15,154)	(20,026)	(1,610)
Repurchases of convertible senior notes														(11,347)
Repurchases of senior notes													(40,250)
Debt issuance costs paid													(4,975)	(339)
Cash dividends paid to stockholders													(13,906)	(12,438)	(12,428)
Cash dividends received under share repurchase forward contract													1,073	747	747
Proceeds from exercise of stock options													75	150	263
Proceeds from issuance of long-term debt													143,859	18,200
Tax benefits on stock-based compensation														641	2,295
Net cash provided by (used in) financing activities													39,030	(26,157)	(11,525)
Net (decrease) increase in cash and cash equivalents													(24,647)	12,793	(46,678)
Cash and cash equivalents at beginning of year				280,531				267,738				314,416	280,531	267,738	314,416
Cash and cash equivalents at end of year	255,884				280,531				267,738				255,884	280,531	267,738
HCI Group [Member]
Cash flows from operating activities:
Net (loss) income													(6,893)	29,021	65,861
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Stock-based compensation													2,630	2,878	4,341
Net realized investment gains													(367)	(151)	(108)
Net unrealized investment gains													(92)
Amortization of premiums on investments in fixed-maturity securities													51		1
Depreciation and amortization													6,673	3,899	3,996
(Income) loss from limited partnership investments													(1,354)	(523)	3,277
Distributions from limited partnership interests													881	544	12
Other-than-temporary impairment losses													209	15	75
Gain on repurchases of convertible senior notes														(153)
Loss on repurchases of senior notes													743
Loss from disposal of property and equipment													17
Equity in income of subsidiaries													(2,389)	(38,154)	(78,464)
Deferred income taxes													(4,224)	(1,542)	(3,218)
Changes in operating assets and liabilities:
Income taxes receivable													(1,461)	(1,563)	2,596
Other assets													(106)	(129)	228
Accrued expenses and other liabilities													1,544	(716)	689
Income taxes payable														(1,518)	1,279
Due to related parties													(54,896)	60,075	(14,831)
Net cash provided by operating activities													(59,034)	51,983	(14,266)
Cash flows from investing activities:
Investment in limited partnership interest													(4,611)	(2,710)	(19,956)
Investment in note receivable - related party													(7,280)
Purchase of fixed-maturity securities													(31,034)	(371)	(384)
Purchase of equity securities, available for sale													(8,939)	(2,853)	(3,196)
Purchase of equity securities, trading													(3,544)
Purchase of property and equipment													(306)	(202)	(371)
Proceeds from sales of fixed-maturity securities													667	423	259
Proceeds from calls, repayments and maturities of fixed-maturity securities														130
Proceeds from sales of equity securities, available for sale													6,262	2,602	5,475
Proceeds from sales of equity securities, trading													2,624
Distributions from limited partnership interests													11,758
Dividends received from subsidiary													105,000	19,000	92,700
Investment in subsidiaries														(25,250)	(78,536)
Net cash used in investing activities													70,597	(9,231)	(4,009)
Cash flows from financing activities:
Repurchases of common stock													(30,718)	(464)	(792)
Repurchases of common stock under share repurchase plan													(15,154)	(20,026)	(1,610)
Repurchases of convertible senior notes														(11,347)
Repurchases of senior notes													(40,250)
Debt issuance costs paid													(4,975)
Cash dividends paid to stockholders													(13,906)	(12,438)	(12,428)
Cash dividends received under share repurchase forward contract													1,073	747	747
Proceeds from exercise of stock options													75	150	263
Proceeds from issuance of long-term debt													143,750
Tax benefits on stock-based compensation														641	2,295
Net cash provided by (used in) financing activities													39,895	(42,737)	(11,525)
Net (decrease) increase in cash and cash equivalents													51,458	15	(29,800)
Cash and cash equivalents at beginning of year				$ 2,297				$ 2,282				$ 32,082	2,297	2,282	32,082
Cash and cash equivalents at end of year	$ 53,755				$ 2,297				$ 2,282				$ 53,755	$ 2,297	$ 2,282

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Feb. 08, 2018	Jan. 26, 2018	Jan. 15, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Feb. 20, 2018
Subsequent Event [Line Items]
Dividends per common share				$ 1.40	$ 1.20	$ 1.20
Options to purchase common shares granted				110,000
Options exercise price per share				$ 40
Grant date fair value of restricted stock				$ 0	$ 0	$ 0
Capital committed for investment				$ 14,328,000	$ 13,554,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends per common share			$ 0.35
Date of dividend payable			Mar. 16, 2018
Record date of dividend payable			Feb. 16, 2018
Subsequent Event [Member] | Chief Executive Officer [Member]
Subsequent Event [Line Items]
Shares of restricted stock granted	40,000
Options to purchase common shares granted	110,000
Options exercise price per share	$ 40
Options expiration date	Feb. 8, 2028
Vesting period	4 years
Grant date fair value of restricted stock	$ 1,397,000
Grant date fair value of stock options	$ 939,000
Subsequent Event [Member] | Greenleaf Essence, LLC [Member]
Subsequent Event [Line Items]
Purchase of noncontrolling interest		$ 539,000
Gain or loss on acquisition of noncontrolling interest		$ 0
Subsequent Event [Member] | Limited Partnership [Member] | Subscription Agreement [Member]
Subsequent Event [Line Items]
Capital committed for investment							$ 5,000,000

Subsequent Events - Minimum Fut

Subsequent Events - Minimum Future Rental Payments Under Operating Leases (Detail) - USD ($) $ in Thousands	Feb. 02, 2018	Dec. 31, 2017
Operating Leased Assets [Line Items]
2,018		$ 147
2,019		142
2,020		150
2,021		157
Total minimum future payments		$ 596
Miami Lakes, Florida [Member] | Subsequent Event [Member]
Operating Leased Assets [Line Items]
2,018	$ 116
2,019	158
2,020	163
2,021	41
Total minimum future payments	$ 478