HCI (HCI) 10-K 12 Mar 21 2020 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 26, 2021	Jun. 30, 2020
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Trading Symbol	HCI
Entity Registrant Name	HCI Group, Inc.
Entity Central Index Key	0001400810
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Shares
Security Exchange Name	NYSE
Entity File Number	001-34126
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	20-5961396
Entity Address, Address Line One	5300 West Cypress Street
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Tampa
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33607
City Area Code	813
Local Phone Number	849-9500
Document Annual Report	true
Document Transition Report	false
Entity Common Stock, Shares Outstanding		8,623,922
Entity Public Float			$ 286,741,595
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
ICFR Auditor Attestation Flag	true
Documents Incorporated by Reference	The information required by Part III of this Form 10-K is incorporated by reference from the registrant’s definitive proxy statement which will be filed not later than 120 days after the end of the fiscal year covered by this Form 10-K.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets
Fixed-maturity securities, available for sale, at fair value (amortized cost: $70,265 and $199,954, respectively and allowance for credit losses: $588 and $0, respectively)	$ 71,722	$ 202,839
Equity securities, at fair value (cost: $47,029 and $31,863, respectively)	51,130	35,285
Short-term investments		491
Limited partnership investments, at equity	27,691	28,346
Investment in unconsolidated joint venture, at equity	705	762
Real estate investments	74,472	73,763
Total investments	225,720	341,486
Cash and cash equivalents	431,341	229,218
Restricted cash	2,400	700
Accrued interest and dividends receivable	588	1,616
Income taxes receivable	4,554	1,040
Premiums receivable, net	68,382	20,255
Prepaid reinsurance premiums	36,376	17,983
Reinsurance recoverable, net of allowance for credit losses:
Paid losses and loss adjustment expenses (allowance: $0 in 2020 and 2019)	14,127	16,155
Unpaid losses and loss adjustment expenses (allowance: $85 and $0, respectively)	71,019	116,523
Deferred policy acquisition costs	43,858	21,663
Property and equipment, net	12,767	14,698
Right-of-use assets - operating leases	4,002	484
Intangible assets, net	3,568	4,192
Other assets	22,611	16,596
Total assets	941,313	802,609
Liabilities and Stockholders’ Equity
Losses and loss adjustment expenses	212,169	214,697
Unearned premiums	269,399	181,163
Advance premiums	11,370	5,589
Assumed reinsurance balances payable	87	76
Accrued expenses	10,181	10,059
Deferred income taxes, net	11,925	4,008
Revolving credit facility	23,750	9,750
Long-term debt	156,511	163,695
Lease liabilities - operating leases	4,014	513
Other liabilities	40,771	27,516
Total liabilities	740,177	617,066
Commitments and contingencies (Note 23)
Stockholders’ equity:
Preferred stock
Common stock (no par value, 40,000,000 shares authorized, 7,785,617 and 7,764,564 shares issued and outstanding in 2020 and 2019, respectively)
Additional paid-in capital
Retained income	199,592	183,365
Accumulated other comprehensive income, net of taxes	1,544	2,178
Total stockholders’ equity	201,136	185,543
Total liabilities and stockholders’ equity	941,313	802,609
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, 2020	Dec. 31, 2019
Available-for-sale Debt securities, Amortized cost	$ 70,265	$ 199,954
Available-for-sale Debt securities, Allowance for credit losses	588	0
Equity Securities, Cost	47,029	31,863
Paid losses and loss adjustments allowance	0	0
Unpaid losses and loss adjustments allowance	$ 85	$ 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	7,785,617	7,764,564
Common stock, outstanding	7,785,617	7,764,564
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, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue
Gross premiums earned	$ 415,918	$ 342,079	$ 343,065
Premiums ceded	(153,458)	(125,765)	(129,643)
Net premiums earned	262,460	216,314	213,422
Net investment income	4,564	13,642	16,581
Net realized investment gains (losses)	1,000	(254)	6,183
Net unrealized investment gains (losses)	679	7,950	(10,202)
Net other-than-temporary impairment losses	0	(289)	(80)
Credit losses on investments	(611)	0	0
Policy fee income	3,522	3,229	3,389
Gain on involuntary conversion	36,969	0	0
Other	1,854	1,882	1,999
Total revenue	310,437	242,474	231,292
Expenses
Losses and loss adjustment expenses	160,036	107,514	109,328
Policy acquisition and other underwriting expenses	53,859	42,497	38,943
General and administrative personnel expenses	33,829	31,112	25,908
Interest expense	11,734	13,055	18,096
Loss on repurchases of convertible senior notes	150	0	0
Loss on extinguishment of debt	98	0	0
Other operating expenses	13,803	12,203	12,115
Total expenses	273,509	206,381	204,390
Income before income taxes	36,928	36,093	26,902
Income tax expense	9,348	9,517	9,177
Net income	$ 27,580	$ 26,576	$ 17,725
Basic earnings per share	$ 3.55	$ 3.32	$ 2.34
Diluted earnings per share	$ 3.49	$ 3.31	$ 2.34

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 27,580	$ 26,576	$ 17,725
Change in unrealized gain (loss) on investments:
Net unrealized gains (losses) arising during the period	86	4,902	(3,137)
Other-than-temporary impairment losses charged to income		289	80
Credit losses charged to income	611	0	0
Call and repayment gains charged to investment income	(374)	(141)	(18)
Reclassification adjustment for net realized gains	(1,163)	(218)	(723)
Net change in unrealized (losses) gains	(840)	4,832	(3,798)
Deferred income taxes on above change	206	(1,201)	963
Total other comprehensive (loss) income, net of income taxes	(634)	3,631	(2,835)
Comprehensive income	$ 26,946	$ 30,207	$ 14,890

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	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]	Retained Income [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Income [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]Revision of Prior Period, Adjustment [Member]	Retained Income [Member]Cumulative Effect, Period of Adoption, Adjusted Balance [Member]Revision of Prior Period, Adjustment [Member]	Accumulated Other Comprehensive (Loss) Income, Net of Tax [Member]	Accumulated Other Comprehensive (Loss) Income, Net of Tax [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]Revision of Prior Period, Adjustment [Member]	Accumulated Other Comprehensive (Loss) Income, Net of Tax [Member]Cumulative Effect, Period of Adoption, Adjusted Balance [Member]Revision of Prior Period, Adjustment [Member]
Beginning Balance at Dec. 31, 2017	$ 193,975							$ 189,409		$ (984)	$ 4,168	$ 4,566	$ 984	$ (4,168)
Beginning Balance, shares at Dec. 31, 2017				8,762,416
Net income	17,725							17,725
Total other comprehensive loss, net of income taxes	$ (2,835)											(2,835)
Exercise of common stock options, shares	0
Issuance of restricted stock	$ 0			$ 0		$ 0		0				0
Issuance of restricted stock, shares				189,860
Forfeiture of restricted stock, value	0			$ 0		0		0				0
Forfeiture of restricted stock, shares				(56,637)
Repurchase and retirement of common stock, value	(1,151)		$ (20,015)			(1,151)	$ (20,015)
Repurchase and retirement of common stock, shares				(27,281)	(511,628)
Purchase of noncontrolling interest	(539)					(539)
Common stock dividends	(10,351)							(10,351)
Stock-based compensation	4,632					4,632
Additional paid-in capital shortfall allocated to retained income						17,073		(17,073)
Ending Balance at Dec. 31, 2018	181,441							182,894				(1,453)
Ending Balance, shares at Dec. 31, 2018				8,356,730
Net income	26,576							26,576
Total other comprehensive loss, net of income taxes	3,631											3,631
Exercise of common stock options, value	$ 63					63
Exercise of common stock options, shares	10,000			10,000
Issuance of restricted stock	$ 0			$ 0		0		0				0
Issuance of restricted stock, shares				180,404
Forfeiture of restricted stock, value	0			$ 0		0		0				0
Forfeiture of restricted stock, shares				(299,776)
Repurchase and retirement of common stock, value	(1,203)		(18,851)			(1,203)	(18,851)
Repurchase and retirement of common stock, shares				(28,784)	(454,010)
Common stock dividends	(12,706)							(12,706)
Stock-based compensation	6,460					6,460
Tax basis adjustment on equity method investment	132					132
Additional paid-in capital shortfall allocated to retained income						13,399		(13,399)
Ending Balance at Dec. 31, 2019	$ 185,543	$ (453)				0		183,365	$ (453)			2,178
Ending Balance, shares at Dec. 31, 2019				7,764,564
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Net income	$ 27,580							27,580
Total other comprehensive loss, net of income taxes	(634)											(634)
Exercise of common stock options, value	$ 63					63
Exercise of common stock options, shares	10,000			10,000
Issuance of restricted stock	$ 0			$ 0		0		0				0
Issuance of restricted stock, shares				192,680
Forfeiture of restricted stock, value	0			$ 0		0		0				0
Forfeiture of restricted stock, shares				(18,852)
Repurchase and retirement of common stock, value	(1,547)		$ (5,161)			(1,547)	$ (5,161)
Repurchase and retirement of common stock, shares				(33,633)	(129,142)
Common stock dividends	(12,388)							(12,388)
Stock-based compensation	8,133					8,133
Additional paid-in capital shortfall allocated to retained income						$ (1,488)		1,488
Ending Balance at Dec. 31, 2020	$ 201,136							$ 199,592				$ 1,544
Ending Balance, shares at Dec. 31, 2020				7,785,617

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement Of Stockholders Equity [Abstract]
Common stock dividends	$ 1.60	$ 1.60	$ 1.475

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 27,580	$ 26,576	$ 17,725
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	8,133	6,460	4,632
Net (accretion of discount) amortization of premiums on investments in fixed-maturity securities	(100)	50	761
Depreciation and amortization	8,747	8,942	10,996
Deferred income tax expense	8,123	1,871	141
Net realized investment (gains) losses	(1,000)	254	(6,183)
Net unrealized investment (gains) losses	(679)	(7,950)	10,202
Other-than-temporary impairment losses		289	80
Credit loss expense - investments	611
Credit loss expense - reinsurance recoverable	(368)
Loss (income) from unconsolidated joint venture	57	83	(304)
Distribution received from unconsolidated joint venture			68
Loss on repurchases of convertible senior notes	150	0	0
Loss on extinguishment of debt	98	0	0
Gain on involuntary conversion	(36,969)
Net loss (income) from limited partnership interests	1,595	(1,176)	(4,430)
Distributions received from limited partnership interests	1,215	4,176	2,345
Foreign currency remeasurement loss	32	57	135
Other non-cash items	46	290	72
Changes in operating assets and liabilities:
Accrued interest and dividends receivable	1,028	176	191
Income taxes	(3,514)	(69)	15,221
Premiums receivable	(48,127)	(3,588)	1,140
Prepaid reinsurance premiums	(18,393)	(51)	4,354
Reinsurance recoverable	47,447	(8,767)	(20,807)
Deferred policy acquisition costs	(22,195)	(5,156)	205
Other assets	(4,578)	(7,837)	408
Losses and loss adjustment expenses	(2,528)	7,111	9,008
Unearned premiums	88,236	23,434	(7,167)
Advance premiums	5,781	(603)	1,244
Assumed reinsurance balances payable	11	62	(1)
Reinsurance recovered in advance on unpaid losses			(13,885)
Accrued expenses and other liabilities	16,872	9,413	2,444
Net cash provided by operating activities	77,311	54,047	28,595
Cash flows from investing activities:
Investments in limited partnership interests	(4,241)	(1,174)	(7,182)
Distributions received from limited partnership interests	2,086	2,121	158
Distribution from unconsolidated joint venture			695
Purchase of property and equipment	(6,437)	(2,887)	(2,187)
Purchase of intangible assets			(409)
Purchase of real estate investments	(3,020)	(11,481)	(7,472)
Purchase of fixed-maturity securities	(34,951)	(82,662)	(113,174)
Purchase of equity securities	(68,223)	(24,637)	(52,250)
Purchase of short-term and other investments	(200)	(1,178)	(201,538)
Compensation received for property relinquished through eminent domain proceedings	44,000
Proceeds from sales of fixed-maturity securities	81,433	7,947	81,809
Proceeds from calls, repayments and maturities of fixed-maturity securities	84,459	59,343	82,177
Proceeds from sales of equity securities	47,312	37,669	66,439
Proceeds from sales, redemptions and maturities of short-term and other investments	997	67,398	135,256
Net cash provided by (used in) investing activities	143,215	50,459	(17,678)
Cash flows from financing activities:
Net borrowing under revolving credit facility	14,000	9,750
Cash dividends paid	(12,694)	(13,012)	(11,318)
Cash dividends received under share repurchase forward contract	306	306	967
Proceeds from exercise of common stock options	63	63
Proceeds from the issuance of long-term debt	10,000		6,000
Repurchases of convertible senior notes	(4,459)
Repayment of long-term debt	(17,048)	(91,318)	(1,127)
Repurchases of common stock	(1,547)	(1,203)	(1,151)
Repurchases of common stock under share repurchase plan	(5,161)	(18,851)	(20,015)
Purchase of non-controlling interest			(539)
Debt issuance costs	(165)	(459)	(105)
Net cash used in financing activities	(16,705)	(114,724)	(27,288)
Effect of exchange rate changes on cash	2	(22)	(164)
Net increase (decrease) in cash, cash equivalents and restricted cash	203,823	(10,240)	(16,535)
Cash, cash equivalents and restricted cash at beginning of year	229,918	240,158	256,693
Cash, cash equivalents and restricted cash at end of year	433,741	229,918	240,158
Supplemental disclosure of cash flow information:
Cash paid for income taxes	6,202	7,713	3,655
Cash paid for interest	7,476	9,386	10,720
Non-cash investing and financing activities:
Unrealized (loss) gain on investments in available-for-sale securities, net of tax	(634)	3,631	(2,835)
Receivable from sales of equity securities	5,240
Payable on purchases of equity securities	$ 7
Addition to property and equipment under finance lease		$ 18	$ 61

Nature of Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2020
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”) 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 and has regulatory approval to underwrite residential property and casualty insurance in various other states. HCPCI has issued insurance policies in other states, however, Florida is still its primary market. TypTap offers standalone flood and homeowners multi-peril policies to Florida homeowners. In October 2020, TypTap began applying for approval to offer homeowners coverage in 23 states outside of Florida. Since then, TypTap has received approvals from ten states. The operations of both insurance subsidiaries are supported by HCI Group, Inc. and certain HCI subsidiaries. In particular, the Company is currently using internally developed technologies to collect and analyze claims and other supplemental data to generate savings and efficiency for the operations of the insurance subsidiaries. In addition, Greenleaf Capital, LLC, the Company’s real estate subsidiary, is primarily engaged in the businesses of owning and leasing real estate and operating marina facilities. On February 5, 2020, HCPCI entered into a policy replacement agreement with Anchor Property & Casualty Insurance Company (“Anchor”). Under the agreement, Anchor cancelled all its policies as of April 1, 2020 and HCPCI offered short-term replacement policies to those policyholders, who were under no obligation to accept them. The replacement policies had substantially the same terms and rates as the cancelled policies and would expire on the same dates the cancelled policies would have expired had they not been cancelled. Upon expiration of the replacement policies, HCPCI will offer, but is not obligated to offer, renewals to those policyholders at its own rates and terms. Total replacement policies issued by the Company on April 1, 2020 approximated 40,000. In December 2020, the Company reached an agreement in principle with United Insurance Holdings Corporation (“United”) for United’s primary insurance subsidiary, United Property & Casualty Insurance Company, to cede a portion of its personal lines insurance business in the states of Connecticut, New Jersey, Massachusetts and Rhode Island and subsequently sell its policy renewal rights to HCPCI. The agreement was later finalized on January 18, 2021. Under the reinsurance agreement, HCPCI will provide 69.5% quota share reinsurance on all of United’s in-force, new and renewal policies in those states from December 31, 2020 through May 31, 2021. In exchange, HCPCI paid United an allowance of $4,400 towards already purchased catastrophe reinsurance and a provisional ceding commission of 25% of premium. That percentage could increase up to 31.5% depending on the direct loss ratio results from the reinsured business. Annual premiums from the assumed business approximate $125,000. After the reinsurance agreement expires, the Company has the ability to renew and/or replace United’s insurance policies under a renewal rights agreement. See Note 28 -- “Subsequent Events” for information concerning the acquisition of the renewal rights from United.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 -- Summary of Significant Accounting Policies Basis of Presentation. The accompanying financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Adoption of New Accounting Standards. In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2016-13 (“ASU 2016-13”), Financial Instruments – Credit Losses (Topic 326), effective January 1, 2020. This update amends guidance on the recognition and measurement of credit losses for assets held at amortized cost and available-for-sale debt securities. For assets held at amortized cost, ASU 2016-13 eliminates the probable initial recognition threshold and, instead, requires credit losses to be measured using the Current Expected Credit Loss (“CECL”) model. The CECL model requires the measurement of all expected credit losses based on historical experience, current conditions, and reasonable and supportable forecasts which incorporate forward-looking information. The incurred loss model previously used to estimate credit losses is replaced with the CECL model for premiums receivable and reinsurance recoverable. For available-for-sale debt securities, credit losses will continue to be measured in a manner similar to the current standard. See also “Allowance for Credit Losses” within this note. Effective January 1, 2020, the Company used a modified retrospective method for transition to the CECL model. The Company recognized a cumulative-effect adjustment of $453 related to reinsurance recoverable to beginning retained income with a corresponding entry to an allowance for credit losses account. Any subsequent changes to the expected credit losses will be recognized in the Company’s consolidated statement of income. Principles of Consolidation. The accompanying consolidated financial statements include the accounts of HCI Group, Inc. and its majority-owned and controlled subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. In addition, the Company evaluates its relationships or investments for consolidation pursuant to authoritative accounting guidance related to the consolidation of variable interest entities under the Variable Interest Model prescribed by the FASB. A variable interest entity is consolidated when the Company has the power to direct activities that most significantly impact the economic performance of the variable interest entity and has the obligation to absorb losses or the right to receive benefits from the variable interest entity that could potentially be significant to the variable interest entity. When a variable interest entity is not consolidated, the Company uses the equity method to account for the investment. Under this method, the carrying value is generally the Company’s share of the net asset value of the unconsolidated entity, and changes in the Company’s share of the net asset value are recorded in net investment income. Use of Estimates. The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as well as the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ materially from these estimates. Material estimates that are particularly susceptible to significant change in the near term are primarily related to losses and loss adjustment expenses, reinsurance with retrospective provisions, reinsurance recoverable, deferred income taxes, limited partnership investments and stock-based compensation expense. Cash and Cash Equivalents. The Company considers all short-term highly liquid investments with original maturities of less than three months to be cash and cash equivalents. At December 31, 2020 and 2019, cash and cash equivalents consisted of cash on deposit with financial institutions and securities brokerage firms, and certificates of deposit. Available-for-Sale Fixed-Maturity Securities. Fixed-maturity securities that are available for sale include debt securities and redeemable preferred stock. The Company’s available-for-sale securities are carried at fair value. Changes in the fair value of available-for-sale securities representing unrealized gains or losses, other than impairments, are excluded from net investment income and reported in stockholders’ equity as a component of accumulated other comprehensive income, net of deferred income taxes. Realized investment gains and losses from sales are recorded on the trade date and are determined using the first-in first-out (“FIFO”) method. Investment income is recognized as earned and discounts or premiums arising from the purchase of debt securities are recognized in investment income using the interest method over the estimated remaining term of the security. Gains and losses from call redemptions and repayments are charged to investment income. The Company reviews fixed-maturity securities for impairment on a monthly basis. Effective January 1, 2020, net unrealized loss in the fair value of an available-for-sale fixed-maturity security is evaluated for impairment. When reviewing impaired 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 currently as impairment losses in income. Impaired securities where the Company has the ability and intent to hold until recovery and believes it is not probable that the Company will be required to sell these securities prior to their anticipated recovery or maturity, are evaluated for the existence of credit-related losses. 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, the failure of the issuer to make a scheduled payment, 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. If such credit-related losses exist, an allowance for credit losses is established with a charge in the statement of income. Subsequent changes in the allowance, whether favorable or unfavorable, are recorded on the statement of income. See additional information in the Allowance for Credit Losses section within this note. Any remaining impairment loss related to other non-credit factors such as changes in interest rates or market conditions is reflected as a component of accumulated other comprehensive income (loss). Prior to January 1, 2020, when the fair value of any investment was lower than its cost, an assessment was made to determine whether the decline was temporary or other-than-temporary. If the decline was determined to be other-than-temporary, the investment was written down to fair value and an impairment loss was recognized in income in the period in which the Company made such determination. When reviewing impaired securities, the Company considered its ability and intent to hold these securities and whether it was probable that the Company would be required to sell these securities prior to their anticipated recovery or maturity. For the fixed-maturity securities that the Company intended to sell or it was probable that the Company would have to sell before recovery or maturity, the unrealized losses were recognized as other-than-temporary losses in income. In instances where there were credit-related losses associated with the impaired fixed-maturity securities for which the Company asserted that it did not have the intent to sell, and it was probable that the Company would 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 was recognized in income, and the amount of the other-than-temporary impairment loss related to other non-credit factors such as changes in interest rates or market conditions was recorded as a component of accumulated other comprehensive income (loss). Allowance for Credit Losses. Allowance for credit losses represents an estimation of potential losses that the Company may experience due to credit risk. The allowance for credit losses account is a contra account of a financial asset to reflect the net amount expected to be collected. Any increase or decrease in the allowance for credit losses related to investments is recognized and reflected as credit losses on investments in the Company’s consolidated statements of income. For all other financial assets, credit loss expense is included in other operating expenses. When the risk of credit loss becomes certain, the allowance for credit losses account will be written off against the financial asset. Under the CECL model, the Company measures all expected credit losses related to relevant financial assets based on historical experience, current conditions, and reasonable and supportable forecasts which incorporate forward-looking information. The Company primarily uses a discounted cash flow method and a rating-based method in estimating credit losses at a reporting date for financial assets under the scope of the CECL model. The discounted cash flow method is a valuation method used to estimate the value of a financial asset based on its future cash flows. The Company uses this method to determine the expected credit losses for available-for-sale fixed-maturity securities. In addition, the Company elected not to measure an allowance for credit losses for accrued interest receivable as any uncollectible amount is adjusted to interest income on a monthly basis. For certain financial assets related to insurance business such as reinsurance recoverable and reinsurance receivable for premium refund, the Company uses a rating-based method, which is a modified version of the probability of default method. It requires two key inputs: a) the liquidation rate and b) the amount of loss exposure. The liquidation rate, which is published annually, is the ratio of impaired insurance companies that were eventually liquidated to the group of insurance companies considered by A.M. Best in its study. The amount of loss exposure represents the future billing balance, net of any collateral, spread over the projected periods that are based on the Company’s historical claim payment pattern. The rating-based method measures credit losses by multiplying the future billings grouped by insurance rating over the projected periods by their corresponding liquidation rates by insurance rating. At present, the exposure to credit losses for certain financial assets related to non-insurance business is considered immaterial to the Company’s financial position. Equity Securities. Equity securities represent ownership interests held by the Company in entities for investment purposes. Unrealized holding gains and losses related to equity securities are reported in the consolidated statement of income as net unrealized investment gains and losses. Realized investment gains and losses from sales are recorded on the trade date and are determined using the FIFO method (see Equity Securities in Note 5 -- “Investments”). Short-Term Investments. Short-term investments include certificates of deposit issued by financial institutions with original maturities of more than three months but less than one year at date of acquisition. These short-term investments are carried at cost or amortized cost, which approximates fair value. Limited Partnership Investments. The Company has interests in limited partnerships that are not registered under the United States Securities Act of 1933, as amended, the securities laws of any state or the securities laws of any other jurisdictions. The partnership interests cannot be resold in the public market and any withdrawal is subject to the terms and conditions of the partnership agreement. The Company has no influence over partnership operating and financial policies. The Company uses the equity method to account for the investments with ownership interest greater than five percent. For the investments with ownership interest at five percent or less, the Company uses the net asset value method to estimate the fair value of these investments. The Company generally recognizes its share of the limited partnership’s earnings or losses on a three-month lag. Due to the lag, the Company may record an adjustment to the Company’s most recent share of net asset value when the amount can be reasonably estimated and a significant adverse impact on the net asset value is expected as a result of a major economic event Net investment income or loss from limited partnerships represents a net aggregate amount of operating results allocated to the Company based on the percentage of ownership interest in each limited partnership. 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. The Company has a 90% equity interest in a limited liability company (treated as a joint venture under U.S. GAAP) that owns land for lease or for sale. The joint venture was determined to be a variable interest entity as it lacks sufficient equity to finance its activities without additional subordinated financial support. Despite having a majority equity interest, the Company does not have the power to direct the activities that most significantly impact the economic performance of the joint venture and, accordingly, is not required to consolidate the joint venture as its primary beneficiary. As a result, the Company uses the equity method to account for this investment. 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. Assets Held for Sale. Assets held for sale are valued at the lower of the carrying value or fair value less costs to sell. Assets are classified as held for sale when the following criteria are met: (i) management has the authority and commits to a plan to sell the asset; (ii) the asset is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the asset has been initiated; (iv) the sale of the asset is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. In determining the fair value of the assets less costs to sell, the Company primarily relies on the value determined by an independent appraiser. If the estimated fair value less costs to sell is less than the carrying value of the asset, the asset is written down to its estimated fair value less costs to sell and an impairment loss is recognized in the consolidated statement of income. Depreciation is not recorded while assets are classified as held for sale. Real Estate Investments. Real estate investments include real estate and the related assets purchased for investment purposes (see Note 5 -- “Investments”). 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 (“DAC”) represent direct costs to acquire insurance contracts and consist of premium taxes and commissions paid to outside agents at the time of collection of the policy premium. DAC also includes a cash bonus and other related expenses in association with the successful transition of policies from Anchor for the replacement policies and issuance of renewal policies under the Company’s own rates and terms. DAC is amortized over the life of the related policy in relation to the amount of gross premiums earned. Ceding commission and related costs paid to United under the quota share reinsurance agreement are also deferred and amortized over the life of the reinsurance agreement. 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 gross premium earned 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 gross premium earned estimates discussed above are revised. Property and Equipment. Property and equipment is stated at cost less accumulated depreciation and amortization, which is included in other operating expenses. Depreciation is calculated on a straight-line basis over the estimated useful lives as follows: building, 39 years; computer hardware and software, three years; and furniture and office equipment, three to seven years. Leasehold improvements are amortized over the shorter of the lease term or the asset’s useful life. Land is not depreciated. Expenditures for improvements are capitalized to the property accounts. Replacements and maintenance and repairs that do not improve or extend the life of the respective assets are expensed as incurred. The Company capitalizes both internal and external costs for internally developed software during the application development stage. During the preliminary project and post-implementation stage, internal-use software development costs are expensed as incurred. Capitalized software costs are depreciated on a straight-line basis over the estimated useful life of seven years. Impairment of Long-Lived Assets. Long-lived assets, such as property and equipment, are reviewed for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. The Company assesses the recoverability of long-lived assets by determining whether the assets can be recovered from undiscounted future cash flows. Recoverability of long-lived assets is dependent upon, among other things, the Company’s ability to maintain profitability so as to be able to meet its obligations when they become due. In the opinion of management, based upon current information and projections, long-lived assets will be recovered over the period of benefit. Intangible Assets. Intangibles consist of the value attributable to the acquired in-place leases and the primary, or anchor, tenant relationships. The value attributable to the anchor tenant relationship represents the economic benefits of having a nationally recognized retailer as the lead tenant, which draws consumer traffic and other tenants to the retail center. These intangibles are amortized to expense over the related lease term. Amortization of the intangibles related to real estate investments is reflected in net investment income in the consolidated statement of income. The Company reviews these intangible assets for impairment annually or when events or changes in circumstances indicate the carrying value may not be recoverable. In the event the Company determines the carrying value is not recoverable, an impairment loss is recorded in the Company’s consolidated statement of income. Leases. The Company leases office equipment, storage units, and office space from non-affiliates under terms ranging from one month up to ten years. In assessing whether a contract is or contains a lease, the Company first determines whether there is an identified asset in the contract. The Company then determines whether the contract conveys the right to obtain substantially all of the economic benefits from use of the identified asset or the right to direct the use of the identified asset. The Company elects not to record any lease with a term of 12 months or less on the consolidated balance sheet. For such short-term leases, the Company recognizes the lease payments in expense on a straight-line basis over the lease term. If the contract is or contains a lease and the Company has the right to control the use of the identified asset, the right-of-use (“ROU”) asset and the lease liability is measured from the lease component of the contract and recognized on the consolidated balance sheet. In measuring the lease liability, the Company uses its incremental borrowing rate for a loan secured by a similar asset that has a term similar to the lease term to discount the lease payments. The contract is further evaluated to determine the classification of the lease as to whether it is finance or operating. If the lease is a finance lease, the ROU asset is depreciated to depreciation expense over the shorter of the useful life of the asset or the lease term. Interest expense is recorded in connection with the lease liability using the effective interest method. If the lease is an operating lease, the ROU asset is amortized to lease expense on a straight-line basis over the lease term. For the presentation of finance leases on the Company’s consolidated balance sheet, ROU assets and corresponding lease liabilities are included with property and equipment, net, and long-term debt, respectively. For the presentation of operating leases on the Company’s consolidated balance sheet, ROU assets are presented as right-of-use assets – operating leases and corresponding lease liabilities are reflected as lease liabilities – operating leases. The Company as a lessor leases its commercial and retail properties, boat slips, and docks to non-affiliates at various terms. If the contract gives the Company’s customer the right to control the use of the identified asset, revenue is recognized on a straight-line basis over the lease term. Initial direct costs incurred by the Company are deferred and amortized on a straight-line basis over the lease term. The Company also records an unbilled receivable, which is the amount by which straight-line revenue exceeds the amount billed in accordance with the lease. Lease Acquisition Costs. Lease acquisition costs represent capitalized costs of finding and acquiring tenants such as leasing commissions, legal, and marketing expenses. The costs are included in other assets on the consolidated balance sheet. The Company amortizes these costs in other operating expenses on a straight-line basis over the term of a lease. Long-Term Debt. Long-term debt includes debt instruments and finance lease obligations. A debt instrument is generally classified as a liability and carried at amortized cost, net of any discount and issuance costs. At issuance, a debt instrument with embedded features such as conversion and redemption options is evaluated to determine whether bifurcation and derivative accounting is applicable. If such instrument is not subject to derivative accounting, it is further evaluated to determine if the Company is required to separately account for the liability and equity components. 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. A prepaid share repurchase forward contract is generally a contract that allows the Company to buy from the counterparty a specified number of common shares at a specific time at a given forward price. The Company entered into such a contract and evaluated the characteristics of the forward contract to determine whether it met the definition of a derivative financial instrument pursuant to U.S. GAAP. The Company determined the forward contract is an equity contract on the Company’s common shares requiring physical settlement in common shares of the Company. As such, the transaction is recognized as a component of stockholders’ equity with a charge to additional paid-in capital equal to the prepayment amount, which represents the cash paid to the counterparty. There will be no recognition in earnings for changes in fair value in subsequent periods. Losses and Loss Adjustment Expenses. Reserves for losses and loss adjustment expenses (“LAE”) are determined by establishing liabilities in amounts estimated to cover incurred losses and LAE. Such reserves are determined based on the assessment of claims reported and the development of pending claims. These reserves are based on individual case estimates for the reported losses and LAE and estimates of such amounts that are incurred but not reported. Changes in the estimated liability are charged or credited to income as the losses and LAE are settled. 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 payments received prior to the policy effective date are recorded as advance premiums. Once the policy is in force, the premiums are recorded as described under “ Premium Revenue ” below. Premium Receivable. Premium receivable represents the amount of premiums due from policyholders for insurance coverage. Premiums are recorded as receivable in the Company’s general ledger on the effective date of the policy. Premiums are billed to the policyholder 45-60 days in advance of the effective date. The policyholder is given a 30-day grace period after the effective date to pay the premium before the insurance coverage is cancelled. If the policyholder does not pay the premium, the Company can cancel the policy and has no obligation to provide insurance coverage. Unpaid renewal policies are cancelled at midnight on the last day of the period for which the policyholder has paid. The unearned premium liability for the cancelled policy is reversed along with the premium receivable balance. Therefore, there is no unpaid earned premium and credit loss associated with the cancelled policy However, when the 30-day grace period falls between two reporting periods, the premium receivable balance at the end of the first reporting period may potentially be overstated for not considering the policy that is subsequently cancelled during the following reporting period. To mitigate the overstatement issue, the Company estimates the monetary impact from the subsequent policy cancellation by multiplying the historical cancellation rate to the premium receivable balance at the reporting date. The premium receivable balance, together with the unearned premium liability, is then reduced by the computed amount. At December 31, 2020 and 2019, allowances for uncollectible premiums were $2,053 and $528, respectively. Reinsurance . In the normal course of business, the Company seeks to reduce the loss that may arise from catastrophes or other events by reinsuring certain levels of risk in various areas of exposure with other insurance enterprises or reinsurers. The Company contracts with a number of reinsurers to secure its annual reinsurance coverage, which generally becomes effective June 1st of each year. The Company purchases reinsurance each year taking into consideration probable maximum losses and reinsurance market conditions. Amounts recoverable from reinsurers are estimated in a manner consistent with the applicable reinsurance contract or contracts. Reinsurance premiums and reserves related to reinsured business are accounted for on a basis consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums ceded to other companies have been reported as a reduction of gross premiums earned. Prepaid reinsurance premiums represent the unexpired portion of premiums ceded to reinsurers. One of the Company’s current reinsurance contracts contains retrospective provisions including terms and conditions that adjust premiums based on the loss experience under the contracts. In such cases, a with-and-without method is used to estimate the asset or liability amount to be recognized at each reporting date. The amount of the estimate is the difference between the net contract costs before and after the loss experience under the contract. Estimates related to premium adjustments are recognized in ceded premiums earned. These estimates are reviewed monthly based on the loss experience to date and as adjustments become necessary. Such adjustments are reflected in the Company’s current operations and recorded in other assets until 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, un

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2020
Accounting Changes And Error Corrections [Abstract]
Recent Accounting Pronouncements	Note 3 -- Recent Accounting Pronouncements Accounting Standards Update No. 2020-01. In January 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2020-01 (“ASU 2020-01”) Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815. This update, among others, clarifies the interaction of the accounting for equity securities under Topic 321 and investments under the equity method of accounting in Topic 323 when there is a change in level of ownership or degree of influence. ASU 2020-01 is effective for the Company beginning with the first quarter of 2021 and will be applied prospectively. Early adoption is permitted. This guidance will not have a material impact on the Company’s consolidated financial statements. Accounting Standards Update No. 2020-06. In August 2020, the FASB issued Accounting Standards Update No. 2020-06 (“ASU 2020-06”) Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40). ASU 2020-06 removes certain bifurcation models for convertible debt instruments and convertible preferred stock. Therefore, the embedded conversion features no longer are separated from the host contract for convertible instruments with conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in-capital. The amendments also remove three settlement conditions that are required for equity contracts to qualify for the derivative scope exception and amend the derivative scope exception guidance for contracts in an entity’s own equity. In addition, the amendments expand disclosure requirements for convertible instruments and simplify areas of the guidance for diluted earnings-per-share calculations that are impacted by the amendments. ASU 2020-06 is effective for public companies beginning with the first quarter of 2022 and shall be applied prospectively. Early adoption is permitted. The Company will early adopt this update in the first quarter of 2021 using the modified retrospective method. The adoption of this update will increase long-term debt by $4,000 and simultaneously decrease beginning retained income and deferred income tax liabilities by $3,019 and $981, respectively. Accounting Standards Update No. 2020-08. In October 2020, the FASB issued Accounting Standards Update No. 2020-08 (“ASU 2020-08”) Codification Improvements to Subtopic 310-20, Receivables – Nonrefundable Fees and Other Costs. ASU 2020-08 states that an entity should reevaluate whether a callable debt security that has multiple call dates is within the scope of ASC 310-20-35-33 for each reporting period. Securities within the scope are those that have explicit, noncontingent call options that are callable at fixed prices and on preset dates at prices less than the amortized cost basis of the security. ASC 310-20-35-33 requires that for each reporting period, to the extent the amortized cost basis of an individual callable debt security exceeds the amount repayable by the issuer at the next call date, the excess should be amortized to the next call date, unless the guidance in ASC 310-20-35-26 applies. ASU 2020-08 is effective for the Company beginning with the first quarter of 2021 and will be applied prospectively. Early adoption is not permitted. This guidance will not have a material impact on the Company’s consolidated financial statements.

Cash, Cash Equivalents, and Res

Cash, Cash Equivalents, and Restricted Cash	12 Months Ended
	Dec. 31, 2020
Cash And Cash Equivalents [Abstract]
Cash, Cash Equivalents, and Restricted Cash	Note 4 -- Cash, Cash Equivalents, and Restricted Cash The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Company’s consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. December 31, 2020 2019 Cash and cash equivalents $ 431,341 $ 229,218 Restricted cash 2,400 700 Total $ 433,741 $ 229,918 At December 31, 2020, $317,420 or 73.6% of the Company’s cash and cash equivalents were deposited at six national banks and included $141,481 in two custodial accounts. At December 31, 2019, $126,347 or 55.1% of the Company’s cash and cash equivalents were deposited at three national banks and included $12,188 in two custodial accounts. At December 31, 2020 and 2019, the Company’s cash deposits at any one bank generally exceed the Federal Deposit Insurance Corporation’s $250 coverage limit for insured deposit accounts.

Investments

Investments	12 Months Ended
	Dec. 31, 2020
Investments Debt And Equity Securities [Abstract]
Investments	Note 5 -- Investments a) Available-for-Sale Fixed-Maturity Securities The Company holds investments in fixed-maturity securities that are classified as available-for-sale. At December 31, 2020 and 2019, the cost or amortized cost, gross unrealized gains and losses, and estimated fair value of the Company’s available-for-sale securities by security type were as follows: Cost or Amortized Allowance for Gross Unrealized Gross Unrealized Estimated Fair Cost Credit Loss Gain Loss Value As of December 31, 2020 U.S. Treasury and U.S. government agencies $ 13,759 $ — $ 210 $ (1 ) $ 13,968 Corporate bonds 49,957 (579 ) 1,570 (17 ) 50,931 State, municipalities, and political subdivisions 3,023 — 60 (2 ) 3,081 Exchange-traded debt 3,491 (9 ) 230 (5 ) 3,707 Redeemable preferred stock 35 — — — 35 Total $ 70,265 $ (588 ) $ 2,070 $ (25 ) $ 71,722 As of December 31, 2019 U.S. Treasury and U.S. government agencies $ 26,220 $ 78 $ (3 ) $ 26,295 Corporate bonds 157,155 2,212 (3 ) 159,364 State, municipalities, and political subdivisions 7,763 149 — 7,912 Exchange-traded debt 8,698 462 (15 ) 9,145 Redeemable preferred stock 118 5 — 123 Total $ 199,954 $ 2,906 $ (21 ) $ 202,839 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, 2020 and 2019 are as follows: December 31, 2020 2019 Cost or Estimated Cost or Estimated Amortized Fair Amortized Fair Cost Value Cost Value Available-for-sale Due in one year or less $ 21,122 $ 21,258 $ 63,135 $ 63,429 Due after one year through five years 43,561 44,339 125,833 127,660 Due after five years through ten years 2,731 3,060 6,896 7,350 Due after ten years 2,851 3,065 4,090 4,400 $ 70,265 $ 71,722 $ 199,954 $ 202,839 Sales of Available-for-Sale Fixed-Maturity Securities Proceeds received, and the gross realized gains and losses from sales of available-for-sale fixed-maturity securities, for the years ended December 31, 2020, 2019 and 2018 were as follows: Gross Gross Realized Realized Proceeds Gains Losses Year ended December 31, 2020 $ 81,433 $ 1,773 $ (610 ) Year ended December 31, 2019 $ 7,947 $ 221 $ (3 ) Year ended December 31, 2018 $ 81,809 $ 1,293 $ (570 ) Gross Unrealized Losses for Available-for- S ale Fixed-Maturity Securities Securities with gross unrealized loss positions at December 31, 2020 and 2019, 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, 2020 Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value U.S. Treasury and U.S. government agencies $ (1 ) $ 1,337 $ — $ — $ (1 ) $ 1,337 Corporate bonds (17 ) 3,085 — — (17 ) 3,085 States, municipalities, and political subdivisions (2 ) 1,268 — — (2 ) 1,268 Exchange-traded debt (5 ) 336 — — (5 ) 336 Total available-for-sale securities $ (25 ) $ 6,026 $ — $ — $ (25 ) $ 6,026 Less Than Twelve Months Twelve Months or Longer Total As of December 31, 2019 Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value U.S. Treasury and U.S. government agencies $ (3 ) $ 2,292 $ — $ — $ (3 ) $ 2,292 Corporate bonds (3 ) 4,597 — — (3 ) 4,597 Exchange-traded debt (15 ) 345 — — (15 ) 345 Total available-for-sale securities $ (21 ) $ 7,234 $ — $ — $ (21 ) $ 7,234 At December 31, 2020 and 2019, there were twelve and eight securities, respectively, in an unrealized loss position. Allowance for Credit Losses of Available-for-Sale Fixed-Maturity Securities The Company regularly reviews its individual investment securities for credit impairment. The Company considers various factors in determining whether a credit loss exists for each individual security, including- • the financial condition and near-term prospects of the issuer, including any specific events that may affect its operations or earnings; • 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. The table below summarized the activity in the allowance for credit losses of available-for-sale fixed-maturity securities for the year ended on December 31, 2020: 2020 Balance at January 1 $ — Credit loss expense 611 Reductions for securities sold (23 ) Balance at December 31 $ 588 For the year ended December 31, 2020, the Company recognized $611 of credit loss expense on two fixed-maturity securities in the consolidated statement of income compared with $289 of credit-related impairment loss on one fixed-maturity security for the year ended December 31, 2019. The Company recognized $80 of non-credit related impairment loss pertaining to one fixed-maturity security for the year ended December 31, 2018. At December 31, 2019 and 2018, the Company had cumulative credit loss balances of $289 and $0, respectively. b) Equity Securities The Company holds investments in equity securities measured at fair values which are readily determinable. At December 31, 2020 and 2019, the cost, gross unrealized gains and losses, and estimated fair value of the Company’s equity securities were as follows: Gross Unrealized Gross Unrealized Estimated Fair Cost Gain Loss Value December 31, 2020 $ 47,029 $ 4,649 $ (548 ) $ 51,130 December 31, 2019 $ 31,863 $ 3,652 $ (230 ) $ 35,285 The table below presents the portion of unrealized gains and losses in the Company’s consolidated statements of income related to equity securities still held. Years Ended December 31, 2020 2019 2018 Net gains (losses) recognized $ 435 $ 7,424 $ (4,811 ) Exclude: Net realized (losses) gains recognized for securities sold (244 ) (526 ) 5,391 Net unrealized gains (losses) recognized $ 679 $ 7,950 $ (10,202 ) Sales of Equity Securities Proceeds received, and the gross realized gains and losses from sales of equity securities, for the years ended December 31, 2020, 2019 and 2018 were as follows: Gross Realized Gross Realized Proceeds Gains Losses Year ended December 31, 2020 $ 47,312 $ 2,868 $ (3,112 ) Year ended December 31, 2019 $ 37,669 $ 2,448 $ (2,974 ) Year ended December 31, 2018 $ 66,439 $ 7,324 $ (1,933 ) 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. The following table provides information related to the Company’s investments in limited partnerships: December 31, 2020 December 31, 2019 Carrying Unfunded Carrying Unfunded Investment Strategy Value Balance (%) (a) Value Balance (%) (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) $ 8,131 $ 2,085 15.37 $ 9,659 $ 2,085 15.37 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) 5,512 — 1.76 5,985 — 1.76 High returns and long-term capital appreciation through investments in the power, utility and energy industries, and in the infrastructure sector. (b)(f)(g) 6,513 1,401 0.18 9,188 1,391 0.18 Value-oriented investments in less liquid and mispriced senior and junior debts of private equity-backed companies. (b)(h)(i) 4,262 — 0.47 1,602 3,106 0.47 Value-oriented investments in mature real estate private equity funds and portfolios globally. (b)(j) 3,273 6,818 2.24 1,912 8,548 2.24 Total $ 27,691 $ 10,304 $ 28,346 $ 15,130 (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 ten-year (d) Expected to have a three-year (e) At the fund manager’s discretion, the term of the fund may be extended for up to two additional one-year periods. (f) Expected to have a ten-year (g) With the consent of a supermajority of partners, the term of the fund may be extended for up to three additional one-year periods. (h) Expected to have a six-year (i) The capital commitment has expired in December 2020 (j) Expected to have an eight-year The following is the summary of aggregated 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. The financial statements of these limited partnerships are audited annually. Years Ended December 31, 2020 2019 2018 Operating results: Total income $ (1,432,907 ) $ 27,171 $ 1,821,935 Total expenses 133,281 139,252 146,079 Net (loss) income $ (1,566,188 ) $ (112,081 ) $ 1,675,856 December 31, 2020 2019 Balance sheet: Total assets $ 5,529,199 $ 6,850,913 Total liabilities $ 612,048 $ 549,562 For the year ended December 31, 2020, the Company recognized net investment loss of $1,595 compared with the investment income of $1,176 and $4,430 for the years ended December 31, 2019 and 2018, respectively, for these investments. At December 31, 2020 and 2019, the Company’s net cumulative contributed capital to the partnerships existing at each respective balance sheet date totaled $29,272 and $27,117, respectively, and the Company’s maximum exposure to loss aggregated $27,691 and $28,346, respectively. During the year ended December 31, 2020, the Company received in cash a return on investment of $1,215 and a return of capital of $2,086 compared with a return on investment of $4,176 and a return of capital of $2,121 during the year ended December 31, 2019. During the year ended December 31, 2018, the Company received total cash distributions of $2,503, representing $2,345 of return on investment and $158 of returned capital. d) Investment in Unconsolidated Joint Venture Melbourne FMA, LLC, a wholly owned subsidiary, currently has an equity investment in FMKT Mel JV, a Florida limited liability company treated as a joint venture under U.S. GAAP. For the years ended December 31, 2020 and 2019, the Company did not receive any cash distributions. For the year ended December 31, 2018, the Company received a cash distribution of $763, representing a combined distribution of $68 in earnings and $695 in capital. Years Ended December 31, 2020 2019 2018 Operating results: Total revenues $ — $ 2 $ 438 Total expenses 64 93 100 Net (loss) income $ (64 ) $ (91 ) $ 338 The Company’s share of net (loss) income* $ (57 ) $ (83 ) $ 304 * Included in net investment income in the Company’s consolidated statements of income. December 31, 2020 2019 Balance sheet: Property and equipment, net $ 705 $ 741 Cash 70 102 Other 13 4 Total assets $ 788 $ 847 Other liabilities $ 5 $ — Members’ capital 783 847 Total liabilities and members’ capital $ 788 $ 847 Investment in unconsolidated joint venture, at equity** $ 705 $ 762 * * Includes the 90% share of FMKT Mel JV’s operating results. e) Assets Held for Sale On April 9, 2020, Greenleaf Capital, LLC decided to offer for sale its investment property in Riverview, Florida. The proceeds from the sale are expected to exceed the property’s carrying value of $4,519 and, accordingly, no impairment loss was recognized on the classification of this property as held for sale. Although this property has drawn interest from several potential buyers since the listing, the Company has yet to receive an offer with acceptable terms. The Company will continue to market the property but can no longer reasonably assume a sale will occur within a year. Accordingly, in December 2020 the property was reclassified back to real estate investments at its carrying value before it was classified as held for sale. The carrying value of $4,748, including additional improvement costs of $229, was then adjusted for catch-up depreciation expense of $68, which is included in net investment income in the Company’s consolidated statement of income. f) Real Estate Investments Real estate investments include land, buildings with office and retail space for lease, outparcels, and marinas. Real estate investments consist of the following as of December 31, 2020 and 2019: December 31, 2020 2019 Land $ 39,069 $ 39,511 Land improvements 11,917 11,907 Building 29,115 24,086 Tenant and leasehold improvements 1,487 1,487 Other 1,465 3,489 Total, at cost 83,053 80,480 Less: accumulated depreciation and amortization (8,581 ) (6,717 ) Real estate investments $ 74,472 $ 73,763 In July 2020, a portion of undeveloped land with a carrying value of $443 was acquired by the Florida Department of Transportation (“FDOT”) as part of the agreement described in Note 9 -- “Property and Equipment, Net.” Depreciation and amortization expense related to real estate investments was $1,864, $1,782 and $1,536, respectively, for the years ended December 31, 2020, 2019 and 2018 and was included in net investment income on the consolidated statements of income. g) Net Investment Income Net investment income (loss), by source, is summarized as follows: Years Ended December 31, 2020 2019 2018 Available-for-sale fixed-maturity securities $ 4,252 $ 6,506 $ 5,097 Equity securities 1,388 1,333 2,131 Investment expense (497 ) (465 ) (581 ) Limited partnership investments (1,595 ) 1,176 4,430 Real estate investments (620 ) (211 ) 340 (Loss) income from unconsolidated joint venture (57 ) (83 ) 304 Cash and cash equivalents 1,691 4,970 3,485 Short-term investments 2 416 1,375 Net investment income $ 4,564 $ 13,642 $ 16,581

Comprehensive Income (Loss)

Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Comprehensive Income (Loss)	Note 6 -- 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 to the credit 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, 2020 Before Tax Income Tax Effect Net of Tax Unrealized gain arising during the period $ 86 $ 21 $ 65 Credit losses on investments 611 150 461 Call and repayment gains charged to investment income (374 ) (92 ) (282 ) Reclassification adjustment for realized gains (1,163 ) (285 ) (878 ) Total other comprehensive loss $ (840 ) $ (206 ) $ (634 ) Year Ended December 31, 2019 Income Tax Before Tax Effect Net of Tax Unrealized gain arising during the period $ 4,902 $ 1,219 $ 3,683 Other-than-temporary impairment loss 289 71 218 Call and repayment gains charged to investment income (141 ) (35 ) (106 ) Reclassification adjustment for realized gains (218 ) (54 ) (164 ) Total other comprehensive income $ 4,832 $ 1,201 $ 3,631 Year Ended December 31, 2018 Income Tax Before Tax Effect Net of Tax Unrealized loss arising during the period $ (3,137 ) $ (795 ) $ (2,342 ) Other-than-temporary impairment loss 80 20 60 Call and repayment losses charged to investment income (18 ) (5 ) (13 ) Reclassification adjustment for realized gains (723 ) (183 ) (540 ) Total other comprehensive loss $ (3,798 ) $ (963 ) $ (2,835 )

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
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 maturing within 90 days. Their carrying value approximates fair value due to the short maturity and high liquidity of these funds. Restricted cash Restricted cash represents cash held by state authorities and the carrying value approximates fair value. Short-term investments Short-term investments consist of certificates of deposit and zero-coupon commercial paper with maturities of 91 to 365 days. Due to their short maturity, the carrying value approximates fair value. Fixed-maturity and equity securities Estimated fair values are determined in accordance with U.S. GAAP, using valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Fair values are generally measured using quoted prices in active markets for identical securities or other inputs that are observable either directly or indirectly, such as quoted prices for similar securities. In those instances where observable inputs are not available, fair values are measured using unobservable inputs. Unobservable inputs reflect the Company’s own assumptions about the assumptions that market participants would use in pricing the security and are developed based on the best information available in the circumstances. Fair value estimates derived from unobservable inputs are significantly affected by the assumptions used, including the discount rates and the estimated amounts and timing of future cash flows. The derived fair value estimates cannot be substantiated by comparison to independent markets and are not necessarily indicative of the amounts that would be realized in a current market exchange. 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. Revolving credit facility The Company’s revolving credit facility is a variable-rate loan. The interest rate is periodically adjusted based on the London Interbank Offered Rate plus a spread. As a result, its carrying value approximates fair value. Long-term debt The following table summarizes components of the Company’s long-term debt and methods used in estimating their fair values: Maturity Date Valuation Methodology 4.25% Convertible Senior Notes 2037 Quoted price 3.90% Promissory Note 2032 Discounted cash flow method/Level 3 inputs 4.00% Promissory Note 2031 Discounted cash flow method/Level 3 inputs 3.75% Callable Promissory Note 2036 Discounted cash flow method/Level 3 inputs 4.55% Promissory Note 2036 Discounted cash flow method/Level 3 inputs 3.95% Promissory Note 2020 Discounted cash flow method/Level 3 inputs Assets Measured and Recorded at Estimated Fair Value on a Recurring Basi s The following tables present information about the Company’s financial assets measured at estimated fair value on a recurring basis. The tables indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of December 31, 2020 and 2019: Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2020 Financial Assets: Cash and cash equivalents $ 431,341 $ — $ — $ 431,341 Restricted cash $ 2,400 $ — $ — $ 2,400 Fixed-maturity securities: U.S. Treasury and U.S. government agencies $ 11,236 $ 2,732 $ — $ 13,968 Corporate bonds 50,931 — — 50,931 States, municipalities, and political subdivisions — 3,081 — 3,081 Exchange-traded debt 3,707 — — 3,707 Redeemable preferred stock 35 — — 35 Total available-for-sale securities $ 65,909 $ 5,813 $ — $ 71,722 Equity securities $ 51,130 $ — $ — $ 51,130 Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2019 Financial Assets: Cash and cash equivalents $ 229,218 $ — $ — $ 229,218 Restricted cash $ 700 $ — $ — $ 700 Short-term investments $ 491 $ — $ — $ 491 Fixed-maturity securities: U.S. Treasury and U.S. government agencies $ 25,294 $ 1,001 $ — $ 26,295 Corporate bonds 159,364 — — 159,364 States, municipalities, and political subdivisions — 7,912 — 7,912 Exchange-traded debt 9,145 — — 9,145 Redeemable preferred stock 123 — — 123 Total available-for-sale securities $ 193,926 $ 8,913 $ — $ 202,839 Equity securities $ 35,285 $ — $ — $ 35,285 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, 2020 and 2019: Carrying Value Fair Value Measurements Using Estimated Fair Value (Level 1) (Level 2) (Level 3) As of December 31, 2020 Financial Liabilities: Revolving credit facility $ 23,750 $ — $ 23,750 $ — $ 23,750 Long-term debt: 4.25% Convertible senior notes $ 133,964 $ — $ 147,236 $ — $ 147,236 3.90% Promissory note 9,617 — — 10,044 10,044 3.75% Callable promissory note 7,502 — — 7,747 7,747 4.55% Promissory note 5,385 — — 5,809 5,809 Total long-term debt $ 156,468 $ — $ 147,236 $ 23,600 $ 170,836 Carrying Value Fair Value Measurements Using Estimated Fair Value (Level 1) (Level 2) (Level 3) As of December 31, 2019 Financial Liabilities: Revolving credit facility $ 9,750 $ — $ 9,750 $ — $ 9,750 Long-term debt: 4.25% Convertible senior notes $ 134,075 $ — $ 147,375 $ — $ 147,375 3.95% Promissory note $ 8,875 $ — $ — $ 8,887 $ 8,887 4.00% Promissory note 7,237 — — 7,409 7,409 3.75% Callable promissory note 7,837 — — 7,861 7,861 4.55% Promissory note 5,611 — — 5,802 5,802 Total long-term debt $ 163,635 $ — $ 147,375 $ 29,959 $ 177,334

Deferred Policy Acquisition Cos

Deferred Policy Acquisition Costs	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Beginning balance $ 21,663 $ 16,507 Policy acquisition costs deferred 71,320 42,302 Amortization (49,125 ) (37,146 ) Ending balance $ 43,858 $ 21,663 The amount of policy acquisition costs amortized and included in policy acquisition and other underwriting expenses for the years ended December 31, 2020, 2019 and 2018 was $49,125, $37,146 and $35,204, respectively. In connection with the transition of insurance policies from Anchor described in Note 1 -- “Nature of Operations,” the Company incurred $3,023 of direct costs, consisting of a bonus to Anchor of $2,898 and other related expenses of $125. The Company agreed to pay Anchor a cash bonus of $50 per $1,000 of premium for all policies in force at June 1, 2020 that were in compliance with the conditions stated in the agreement. Furthermore, as described in Note 1 -- “Nature of Operations” with regard to the quota share agreement, the Company incurred $15,557 of direct costs attributable to the assumption of insurance policies from United.

Property and Equipment, Net

Property and Equipment, Net	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Land $ 2,134 $ 1,642 Building 3,997 8,101 Computer hardware and software 11,072 6,770 Office furniture and equipment 2,255 2,154 Tenant and leasehold improvements 620 3,388 Other 1,267 3,377 Total, at cost 21,345 25,432 Less: accumulated depreciation and amortization (8,578 ) (10,734 ) Property and equipment, net $ 12,767 $ 14,698 Depreciation and amortization expense under property and equipment was $1,854, $1,550 and $1,370, respectively, for the years ended December 31, 2020, 2019 and 2018. On April 2, 2020, Greenleaf Capital, LLC entered into a purchase and sale agreement with Tampa-Coconut Palms Office Building Exchange, LLC to acquire an office building in Tampa, Florida for a purchase price of $4,000 in cash. The building is currently used as the Company’s secondary site in the Tampa Bay area. The transaction was completed on May 18, 2020 and accounted for as an asset acquisition. On July 24, 2020, the FDOT exercised the power of eminent domain under the Florida Constitution in order to acquire for a highway expansion project the property in Tampa, Florida where the Company’s headquarters is located for compensation of $44,000, net of $3,500 in legal and related expenses. Under the terms of the agreement, the FDOT assumed all contracts associated with this property, including the leases with existing tenants. In addition, the Company agreed to donate a small portion of a separate tract of nearby undeveloped land it owned to the FDOT for the same expansion project. The Company will have no later than July 24, 2023 to vacate the property. In connection with this transaction, the Company recognized a gain from involuntary conversion of $36,969. In addition, the Company used a portion of the proceeds to repay the 4% Promissory Note as described in Note 13 -- “Long-Term Debt.”

Intangible Assets, Net

Intangible Assets, Net	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Anchor tenant relationships* $ 1,761 $ 1,761 In-place leases 4,215 4,215 Total, at cost 5,976 5,976 Less: accumulated amortization (2,408 ) (1,784 ) Intangible assets, net $ 3,568 $ 4,192 * An anchor tenant is a tenant that attracts more customers than other tenants. For the years ended December 31, 2020, 2019 and 2018, amortization expense associated with intangible assets was $624, $608 and $604, respectively. The remaining weighted-average amortization period as of December 31, 2020 was 13.3 years and 10.0 years for anchor tenant relationships and in-place leases, respectively, or a combined weighted average of 11.3 years. Amortization expense for intangible assets after December 31, 2020 is as follows: Year Amount 2021 $ 519 2022 445 2023 337 2024 333 2025 333 Thereafter 1,601 Total $ 3,568

Other Assets

Other Assets	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Benefits receivable related to retrospective reinsurance contracts $ 10,920 $ 9,480 Prepaid expenses 2,365 2,107 Deposits 445 1,678 Lease acquisition costs, net 453 566 Other 8,428 2,765 Total other assets $ 22,611 $ 16,596

Revolving Credit Facility

Revolving Credit Facility	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Revolving Credit Facility	Note 12 -- Revolving Credit Facility The Company has a secured revolving credit agreement (“Credit Agreement”) with Fifth Third Bank that initially expires on December 5, 2021. The Credit Agreement provides the Company with borrowing capacity of up to $65,000 and bears interest at an annual rate equal to monthly-determined LIBOR plus a margin based on the type of collateral used to secure each borrowing. The interest payment is due quarterly in arrears on January 1, April 1, July 1, and October 1. The Credit Agreement contains affirmative and negative covenants as well as customary events of defaults. Under the terms of the Credit Agreement, the Company must comply with certain financial and non-financial covenants and agree to pay a fee equal to the product of the unused line fee rate and the average of the daily unused available credit balances. The unused line fee rate is determined monthly based on the average daily deposit balances. During 2020, the Company borrowed a net additional amount of $14,000 for general business purposes. For the years ended December 31, 2020 and 2019, interest expense was $501 and $452, respectively, including $158 and $157 of amortization of issuance costs, respectively. At December 31, 2020, the Company was in compliance with all required covenants, and there were $23,750 of borrowings outstanding. On January 22, 2021, the expiry date of the Credit Agreement was extended to December 31, 2023 and new collateral specified in the amended Credit Agreement was added in lieu of the Company’s headquarters property which was sold in 2020.

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Long-Term Debt	Note 13 -- Long-Term Debt The following table summarizes the Company’s long-term debt: December 31, 2020 2019 4.25% Convertible Senior Notes, due March 1, 2037 $ 139,200 $ 143,750 3.95% Promissory note, due through February 17, 2020 — 8,881 4.00% Promissory note, due through February 1, 2031 — 7,345 3.90% Promissory note, due through April 1, 2032 9,777 — 3.75% Promissory note, due through September 1, 2036 7,607 7,955 4.55% Promissory note, due through August 1, 2036 5,470 5,704 Finance lease liabilities, due through August 15, 2023 43 60 Total principal amount 162,097 173,695 Less: unamortized discount and issuance costs (5,586 ) (10,000 ) Total long-term debt $ 156,511 $ 163,695 The following table summarizes future maturities of long-term debt as of December 31, 2020, which takes into consideration the assumption that the 4.25% Convertible Senior Notes are repurchased at the earliest call date: Due in 12 months following December 31, 2020 $ 970 2021 140,207 2022 1,041 2023 1,074 2024 1,117 Thereafter 17,688 Total $ 162,097 Information with respect to interest expense related to long-term debt is as follows: Years Ended December 31, 2020 2019 2018 Interest Expense: Contractual interest $ 7,083 $ 8,061 $ 10,740 Non-cash expense (a) 4,247 4,845 7,487 Capitalized interest (b) (97 ) (303 ) (131 ) Total $ 11,233 $ 12,603 $ 18,096 (a) Represents amortization of debt discount and issuance costs. (b) Interest was capitalized for construction projects. Convertible Senior Notes 4.25% Convertible Senior Notes The Company has 4.25% Convertible Senior Notes that mature March 1, 2037. The cash interest is payable semiannually in arrears on March 1 and September 1 of each year. 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 the indenture. These Convertible Senior Notes do not require a sinking fund to be established for the purpose of redemption. 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. When the Company’s cash dividends on common stock exceed $0.35 per share, it will result in adjustments to the conversion rate of the 4.25% Convertible Notes. Accordingly, as of December 31, 2020, the conversion rate of the Company’s 4.25% Convertible Notes was 16.43 shares of common stock for each $1 in principal amount, which was the equivalent of approximately $60.85 per share. 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 the 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 the indenture. 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, 2020, none of the conditions allowing the holders 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 capital. 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 indenture 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 Convertible Senior Notes, the Company is required to repurchase for cash all or any portion of the Convertible Senior 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 Convertible Senior 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 Convertible Senior Notes over the period from March 3, 2017 to March 1, 2022. The effective interest rate for the Convertible Senior Notes, taking into account both cash and non-cash components, approximates 7.6%. Had a 20-year term been used for the amortization of the liability component and issuance costs, the annual effective interest rate charged to earnings would have decreased to approximately 5.4%. As of December 31, 2020, the remaining amortization period of the debt discount was expected to be 1.17 years. The following table summarizes information regarding the equity and liability components of the Convertible Senior Notes: December 31, 2020 2019 Principal amount $ 139,200 $ 143,750 Unamortized discount (4,083 ) (7,545 ) Liability component – net carrying value before issuance costs $ 135,117 $ 136,205 Equity component – conversion, net of offering costs $ 15,151 $ 15,151 Promissory Notes 3.95% Promissory Note In February 2020, the Company repaid its 3.95% Promissory Note for $8,891 including principal and unpaid interest payable at maturity date. The note was collateralized by a retail shopping center in Melbourne, Florida. 3.90% Promissory Note On February 28, 2020, the Company entered into a loan agreement with American Equity Investment Life Insurance Company for gross proceeds of $10,000. The agreement bears interest at a fixed rate of 3.90% and is secured by the Company’s shopping center property in Melbourne, Florida and the assignment of associated lease agreements. Approximately $60 of principal and interest is payable in 143 monthly installments beginning April 1, 2020 plus a final balloon payment of $5,007 including principal and unpaid interest payable on March 1, 2032. The promissory note may be repaid in full at any time as long as the Company provides at least 60 days’ written notice and pays a prepayment premium and processing fee. The proceeds were primarily used to repay the 3.95% Promissory Note due in February 2020. On March 19, 2020, the loan agreement was modified to revise the due dates for the first and last installments to May 1, 2020 and April 1, 2032, respectively, while other terms and conditions remain intact. 3.75% Callable Promissory Note The loan bears interest at a fixed annual rate of 3.75% and is collateralized by a retail shopping center in Sorrento, Florida and the lease agreements associated with this property. Approximately $53 of principal and interest is payable in 240 monthly installments. The promissory note may be repaid in full 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. 4.00% Promissory Note On July 29, 2020, the Company made an early repayment of its 4.00% Promissory Note totaling $7,062 in principal plus accrued interest. As a result, the Company incurred $98 of loss on extinguishment of debt. The note was collateralized by the Company’s Tampa, Florida headquarters which was acquired by the FDOT in the eminent domain proceedings as described in Note 9 -- “Property and Equipment, Net.” 4.55% Promissory Note On July 6, 2018, Century Park Holdings, LLC, a subsidiary of the Company, entered into an 18-year loan agreement for $6,000 secured by commercial real estate in Tampa, Florida and an associated lease agreement. The loan bears interest at a fixed annual rate of 4.55%. Approximately $41 of principal and interest is payable in 216 monthly installments. The promissory note may be repaid in full or in part after September 1, 2020 as long as the Company provides at least 30 days’ written notice and pays a prepayment consideration as specified in the loan agreement.

Reinsurance

Reinsurance	12 Months Ended
	Dec. 31, 2020
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 contracts and one quota share reinsurance agreement. Ceded premiums under most catastrophe excess of loss reinsurance contracts are subject to revision resulting from subsequent adjustments in total insured value. Under the terms of the quota share reinsurance agreement, the Company is entitled to a 30% ceding commission on ceded premiums written. The reinsurance premiums under one multi-year flood catastrophe excess of loss reinsurance 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. 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 of 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, 2020 2019 2018 Premiums Written: Direct $ 459,615 $ 360,525 $ 336,565 Assumed 44,539 4,430 (109 ) Gross written 504,154 364,955 336,456 Ceded (153,458 ) (125,765 ) (129,643 ) Net premiums written $ 350,696 $ 239,190 $ 206,813 Premiums Earned: Direct $ 412,999 $ 340,656 $ 340,966 Assumed 2,919 1,423 2,099 Gross earned 415,918 342,079 343,065 Ceded (153,458 ) (125,765 ) (129,643 ) Net premiums earned $ 262,460 $ 216,314 $ 213,422 During the years ended December 31, 2020, 2019, and 2018, ceded losses of $9,413, $114,443, and $149,120, respectively, were recognized as reductions in losses and LAE. For 2020, ceded losses related to Hurricane Irma, Hurricane Michael, Hurricane Sally, and other non-catastrophe claims were $362, $4,000, $88, and $4,963, respectively. Ceded losses related to Hurricane Irma, Hurricane Michael, and other non-catastrophe claims were $103,613, $10,750, and $80, respectively, for 2019. Ceded losses related to Hurricane Irma and Hurricane Michael were $143,890 and $5,230, respectively, for 2018. Ceded losses recognized in 2018 included $7,400 attributable to Oxbridge Reinsurance Limited, a related party. At December 31, 2020 and 2019, there were 38 and 31 reinsurers, respectively, participating in the Company’s reinsurance program. Total gross amounts recoverable and receivable from reinsurers at December 31, 2020 and 2019 were $85,146 and $132,678, respectively. Approximately 75.8% of the reinsurance recoverable balance at December 31, 2020 was receivable from four reinsurers, one of which was the Florida Hurricane Catastrophe Fund, a tax-exempt state trust fund. Based on all available information considered in the rating-based method described in Note 2 -- “Summary of Significant Accounting Policies,” the Company recognized a decrease in credit loss expense of $368 for the year ended December 31, 2020. Allowances for credit losses related to the reinsurance recoverable balance were $85 and $0 at December 31, 2020 and 2019, respectively. For the year ended December 31, 2020, assumed premiums written attributable to United’s insurance policies were $44,600. The ratio of assumed premiums earned to net premiums earned for the years ended December 31, 2020, 2019 and 2018 was 1.11%, 0.66%, and 0.98%, respectively. One of the reinsurance contracts includes retrospective provisions that adjust premiums in the event losses are minimal or zero. For the years ended December 31, 2020 and 2019, the Company recognized reductions in ceded premiums of $15,120 and $6,778, respectively. For the year ended December 31, 2018, the Company recognized a net reduction in ceded premiums of $485. Included in these adjustments attributable to the Company’s contract with Oxbridge for the year ended December 31, 2018 was $448 of net increase in ceded premiums. Amounts receivable pursuant to retrospective provisions are reflected in other assets. At December 31, 2020 and 2019, other assets included $10,920 and $9,480, respectively. 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, 2020
Insurance [Abstract]
Losses and Loss Adjustment Expenses	Note 15 -- Losses and Loss Adjustment Expenses The Company establishes reserves for the estimated total unpaid costs of losses including LAE. Loss and LAE reserves reflect management’s best estimate of the total cost of (i) claims that have been incurred, but not yet paid in full, and (ii) claims that have been incurred but not yet reported to the Company (“IBNR”). Reserves established by management represent an estimate of the outcome of future events and, as such, cannot be considered an exact calculation of our liability. Rather, loss and LAE reserves represent management’s best estimate of the Company’s liability based on the application of actuarial techniques and other projection methodologies and taking into consideration other facts and circumstances known at the balance sheet date. The process of establishing loss and LAE reserves is complex and inherently imprecise, as it involves the estimation of the outcome of future uncertain events. The impact of both internal and external variables on ultimate losses and LAE costs is difficult to estimate. In determining loss and LAE reserves, the Company gives careful consideration to all available data and actuarial analyses. When a claim is reported to the Company, the claims personnel establish a “case reserve” for the estimated amount of the ultimate amount payable to settle the claim. This estimate reflects an informed judgment based upon general insurance reserving practices and on the experience and knowledge of the claims adjuster. The individual estimating the reserve considers the nature and value of the specific claim, the severity of injury or damage, location, and the policy provisions relating to the type of loss. Case reserves are adjusted as more information becomes available. It is the Company’s policy to settle each claim as expeditiously as possible. Reserves are closely monitored and are recalculated periodically using the most recent information on reported claims and a variety of actuarial techniques. Specifically, claims management personnel complete weekly and ongoing reviews of existing case reserves, new claims, changes to existing case reserves, and paid losses with respect to the current and prior years. As the Company continues to expand historical data regarding paid and incurred losses, the data is used to develop expected ultimate loss and LAE ratios, then these expected loss and LAE ratios are applied to earned premium to derive a reserve level for each line of business. In connection with the determination of these reserves, other specific factors such as recent weather-related losses, trends in historical reported and paid losses, and litigation and judicial trends regarding liability will also be considered. Therefore, the loss ratio method, among other methods, is used to project an ultimate loss expectation, and then the related loss history must be regularly evaluated and loss expectations updated, with the possibility of variability from the initial estimate of ultimate losses. The Company maintains IBNR reserves to provide for claims that have been incurred but have not been reported and subsequent development on reported claims. The IBNR reserve is determined by estimating the Company’s ultimate net liability for both reported and unreported claims and then subtracting the case reserves and payments made to date for reported claims. Loss and LAE Reserve Estimation Methods. The Company applies the following general methods in projecting reserves for losses and LAE: • Reported loss development; • Paid loss development; • Paid Bornhuetter-Ferguson method; • Reported Experience-Modified Bornhuetter-Ferguson method; • Paid Experience-Modified Bornhuetter-Ferguson method; • Loss ratio method; • Several variations of the Frequency-Severity method, depending on exposure; and • A factor load to loss and allocated LAE reserves for the unallocated LAE. Selected reserves are based on a review of the indications from these methods as well as other considerations such as emergence since the most recent evaluation and number of open claims for a given accident period. Currently, the estimated ultimate liability is calculated using the principles and procedures described above, which are applied to the lines of business written. However, because the establishment of loss and LAE reserves is an inherently uncertain process, ultimate losses and LAE may exceed the established loss and LAE reserves and have a material, adverse effect on our results of operations and financial condition. Changes in estimates, or differences between estimates and amounts ultimately paid, are reflected in the operating results of the period during which such adjustments are made. The Company’s reported results, financial position and liquidity would be affected by likely changes in key assumptions that determine the net loss reserves. However, it is believed that a reasonably likely increase or decrease in the severity of claims could impact our net loss reserves. Activity in the liability for losses and LAE is summarized as follows: Years Ended December 31, 2020 2019 2018 Net balance, beginning of year* $ 98,174 $ 94,826 $ 97,818 Incurred, net of reinsurance, related to: Current year 158,236 96,955 96,860 Prior years 1,800 10,559 12,468 Total incurred, net of reinsurance 160,036 107,514 109,328 Paid, net of reinsurance, related to: Current year (71,772 ) (48,456 ) (54,698 ) Prior years (45,373 ) (55,710 ) (57,622 ) Total paid, net of reinsurance (117,145 ) (104,166 ) (112,320 ) Net balance, end of year 141,065 98,174 94,826 Add: reinsurance recoverable 71,104 116,523 112,760 Gross balance, end of year $ 212,169 $ 214,697 $ 207,586 * Net balance represents beginning-of-period liability for unpaid losses and LAE less beginning-of-period reinsurance recoverable for unpaid losses and LAE. The establishment of loss and LAE reserves is an inherently uncertain process and changes in loss and LAE 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, 2020, the Company recognized losses related to prior years of $1,800, which were primarily attributable to unfavorable development resulting from litigation. Losses and LAE for the 2020 loss year included estimated losses of $20,264, net of reinsurance, pertaining to Hurricane Sally, $14,850 related to policies transitioned from Anchor, and $10,000 specific to Tropical Storm Eta. The following is information about incurred and paid claims development as of December 31, 2020, net of reinsurance, as well as cumulative claim frequency and the total of incurred-but-not-reported liabilities plus expected development on reported claims included within the net incurred claims amounts. The information about incurred and paid claims development for the years ended December 31, 2015 to 2012 is presented as supplementary information and is unaudited. Homeowners Multi-peril and Dwelling Fire Insurance (a) As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2012 $ 66,425 $ 62,742 $ 64,083 $ 66,505 $ 67,058 $ 66,465 $ 67,220 $ 67,469 $ 67,869 405 6,620 2013 — 67,579 69,932 69,906 72,015 71,604 73,763 74,043 74,543 226 7,008 2014 — — 75,810 81,773 84,917 88,053 90,084 92,454 92,945 1 7,661 2015 — — — 78,017 90,902 96,173 101,272 102,149 102,587 129 7,661 2016 — — — — 81,446 90,879 92,684 92,986 92,752 1,325 6,931 2017 — — — — — 91,443 88,937 89,652 90,958 6,165 5,764 2018 — — — — — — 79,436 83,976 83,123 9,461 4,756 2019 — — — — — — — 95,467 94,018 20,026 5,314 2020 — — — — — — — — 133,908 59,502 8,008 Total $ 832,703 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2012 $ 36,914 $ 53,225 $ 59,041 $ 62,836 $ 64,667 $ 65,903 $ 67,059 $ 67,203 $ 67,430 2013 — 40,240 57,374 64,257 68,106 70,224 72,492 73,420 73,986 2014 — — 47,650 68,897 77,712 82,463 87,125 90,707 92,264 2015 — — — 50,939 76,042 87,784 95,179 99,200 101,424 2016 — — — — 51,663 73,037 83,311 89,144 90,989 2017 — — — — — 43,039 66,996 78,808 83,383 2018 — — — — — — 41,014 63,958 71,809 2019 — — — — — — — 47,471 70,182 2020 — — — — — — — — 58,396 Total $ 709,863 All outstanding liabilities before 2012, net of reinsurance 898 Liabilities for loss and LAE, net of reinsurance $ 123,738 (a) Excludes losses from Wind-only insurance (2012 through 2020) and any hurricane event prior to 2020. (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Homeowners Wind-only Insurance (a) * As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2015 $ — $ — $ — $ 308 $ 401 $ 569 $ 692 $ 605 $ 582 $ — 100 2016 — — — — 1,005 1,314 1,814 1,853 1,837 13 228 2017 — — — — — 1,529 1,119 815 792 — 156 2018 — — — — — — 798 708 1,061 249 136 2019 — — — — — — — 1,132 1,501 165 152 2020 — — — — — — — — 2,293 1,213 248 Total $ 8,066 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2015 $ — $ — $ — $ 156 $ 332 $ 465 $ 582 $ 582 $ 582 2016 — — — — 689 1,155 1,405 1,772 1,821 2017 — — — — — 484 786 789 792 2018 — — — — — — 216 607 745 2019 — — — — — — — 828 1,290 2020 — — — — — — — — 750 Total $ 5,980 Liabilities for loss and LAE, net of reinsurance $ 2,086 * The Company began writing Homeowners Wind-only insurance in 2015. (a)  Excludes losses from multi-peril and dwelling fire insurance (2012 through 2020) and any hurricane event prior to 2020. (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Losses Specific to Any Hurricane Event prior to 20 20 As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2016 $ — $ — $ — $ — $ 21,414 $ 24,126 $ 26,211 $ 28,133 $ 27,634 $ 1,179 2,420 2017 — — — — — 53,602 54,080 53,557 53,624 4,198 21,765 2018 — — — — — — 16,543 16,532 16,532 95 1,715 2019 — — — — — — — — — — 144 2020 — — — — — — — — — — 42 Total $ 97,790 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2016 $ — $ — $ — $ — $ 12,227 $ 20,025 $ 23,316 $ 25,849 $ 26,098 2017 — — — — — 43,905 47,514 47,524 49,425 2018 — — — — — — 13,391 15,992 16,436 2019 — — — — — — — — — 2020 — — — — — — — — — Total $ 91,959 Liabilities for loss and LAE, net of reinsurance $ 5,831 (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Losses Specific to Hurricane Sally (2020) As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2020 $ — $ — $ — $ — $ — $ — $ — $ — $ 20,264 $ 6,716 1,685 Total $ 20,264 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2020 $ — $ — $ — $ — $ — $ — $ — $ — $ 11,834 Total $ 11,834 Liabilities for loss and LAE, net of reinsurance $ 8,430 (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. 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, 2020 2019 Net outstanding liabilities Homeowners multi-peril and dwelling fire insurance $ 123,738 $ 88,583 Homeowners Wind-only insurance 2,086 535 Losses specific to any hurricane event prior to 2020 5,831 8,857 Losses specific to Hurricane Sally (2020) 8,430 — Other short-duration insurance lines 980 199 Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance 141,065 98,174 Reinsurance recoverables 71,104 116,523 Total gross liability for unpaid losses and loss adjustment expenses $ 212,169 $ 214,697 The following is supplementary and unaudited information about average historical claims duration as of December 31, 2020: Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance Years 1 2 3 4 5 6 7 8 9 Homeowners multi-peril and dwelling fire insurance 53.1 % 20.5 % 8.9 % 0.6 % 1.7 % 1.1 % 0.1 % 0.0 % 0.0 % Homeowners Wind-only insurance 38.7 % 22.3 % 6.5 % 2.0 % 0.6 % 0.0 % * * * Other short-duration insurance lines 52.4 % 15.2 % 0.2 % 0.0 % 0.0 % — — — — Losses specific to any hurricane prior to 2020 70.9 % 14.5 % 3.9 % 4.5 % 0.3 % — — — — Losses specific to Hurricane Sally (2020) 58.4 % — — — — — — — — * The Company began writing Homeowners Wind-only insurance in 2015.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2020
Segment Reporting [Abstract]
Segment Information	Note 16 -- Segment Information The Company identifies its operating divisions based on organizational structure and revenue source. Currently, the Company has three reportable segments: insurance operations, real estate operations, and corporate and other. 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. The real estate operations segment includes companies engaged in operating commercial properties the Company owns for investment purposes or for use in its own operations. The corporate and other segment represents the activities of the holding companies, the information technology division, and other companies that do not meet the quantitative thresholds for a reportable segment. The determination of segments may change over time due to changes in operational emphasis, revenues, and results of operations. The Company’s chief executive officer, who serves as the Company’s chief operating decision maker, evaluates each division’s financial and operating performance based on revenue and operating income. For the years ended December 31, 2020, 2019 and 2018, revenues from the Company’s insurance operations before intracompany elimination represented 88.4%, 95.0% and 95.0%, respectively, of total revenues of all operating segments. At December 31, 2020 and 2019, insurance operations’ total assets represented 84.2% and 85.5%, 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. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2020 Revenue: Net premiums earned $ 262,460 $ — $ — $ — $ 262,460 Net investment income (loss) 6,655 3 (492 ) (1,602 ) 4,564 Net realized investment gains 670 — 330 — 1,000 Net unrealized investment gains 450 — 229 — 679 Credit losses on investments (591 ) — (20 ) — (611 ) Policy fee income 3,522 — — — 3,522 Gain on involuntary conversion — 36,969 — — 36,969 Other 1,067 9,502 2,831 (11,546 ) 1,854 Total revenue 274,233 46,474 2,878 (13,148 ) 310,437 Expenses: Losses and loss adjustment expenses 160,036 — — — 160,036 Amortization of deferred policy acquisition costs 49,125 — — — 49,125 Interest expense 2 1,947 10,710 (925 ) 11,734 Depreciation and amortization 115 2,526 1,706 (2,494 ) 1,853 Other 32,184 5,486 22,820 (9,729 ) 50,761 Total expenses 241,462 9,959 35,236 (13,148 ) 273,509 Income (loss) before income taxes $ 32,771 $ 36,515 $ (32,358 ) $ — $ 36,928 Total revenue from non-affiliates(c) $ 274,233 $ 44,709 $ 848 (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 of certain revenue and expenses to conform with an insurance company’s presentation. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2019 Revenue: Net premiums earned $ 216,314 $ — $ — $ — $ 216,314 Net investment income 12,230 1 2,348 (937 ) 13,642 Net realized investment gains (losses) 286 — (540 ) — (254 ) Net unrealized investment gains 6,565 — 1,385 — 7,950 Net other-than-temporary impairment losses (289 ) — — — (289 ) Policy fee income 3,229 — — — 3,229 Other 762 9,366 5,738 (13,984 ) 1,882 Total revenue 239,097 9,367 8,931 (14,921 ) 242,474 Expenses: Losses and loss adjustment expenses 107,514 — — — 107,514 Amortization of deferred policy acquisition costs 37,146 — — — 37,146 Interest expense 2 1,653 12,043 (643 ) 13,055 Depreciation and amortization 113 2,542 1,285 (2,390 ) 1,550 Other 30,590 5,168 23,246 (11,888 ) 47,116 Total expenses 175,365 9,363 36,574 (14,921 ) 206,381 Income (loss) before income taxes $ 63,732 $ 4 $ (27,643 ) $ — $ 36,093 Total revenue from non-affiliates(c) $ 239,097 $ 7,738 $ 7,176 (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 of certain revenue and expenses to conform with an insurance company’s presentation. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2018 Revenue: Net premiums earned $ 213,422 $ — $ — $ — $ 213,422 Net investment income 10,862 1 5,554 164 16,581 Net realized investment gains 4,639 — 1,544 — 6,183 Net unrealized investment losses (8,688 ) — (1,514 ) — (10,202 ) Net other-than-temporary impairment losses — — (80 ) — (80 ) Policy fee income 3,389 — — — 3,389 Other 583 9,324 4,999 (12,907 ) 1,999 Total revenue 224,207 9,325 10,503 (12,743 ) 231,292 Expenses: Losses and loss adjustment expenses 109,328 — — — 109,328 Amortization of deferred policy acquisition costs 35,204 — — — 35,204 Interest expense 1 1,568 17,008 (481 ) 18,096 Depreciation and amortization 125 2,373 1,011 (2,140 ) 1,369 Other 25,797 4,254 20,464 (10,122 ) 40,393 Total expenses 170,455 8,195 38,483 (12,743 ) 204,390 Income (loss) before income taxes $ 53,752 $ 1,130 $ (27,980 ) $ — $ 26,902 Total revenue from non-affiliates(c) $ 224,207 $ 7,718 $ 9,331 (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 of certain revenue and expenses to conform with an insurance company’s presentation. The following table presents segment assets reconciled to the Company’s total assets o n the consolidated balance sheets. December 31, 2020 2019 Segment: Insurance Operations $ 799,299 $ 663,280 Real Estate Operations 128,383 93,727 Corporate and Other 38,548 60,662 Consolidation and Elimination (24,917 ) (15,060 ) Total assets $ 941,313 $ 802,609 After the balance sheet date, the composition of reportable segments was changed to present TypTap Insurance Group, Inc. (“TTIG”) and its subsidiaries as a separate segment. See Note 28 -- “Subsequent Events.”

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Note 17 -- Leases The table below summarizes the Company’s ROU assets and corresponding liabilities for operating and finance leases: December 31 2020 2019 Operating leases: ROU assets $ 4,002 $ 484 Liabilities $ 4,014 $ 513 Finance leases: ROU assets $ 79 $ 79 Liabilities $ 43 $ 60 As a result of the change in ownership of the Company’s headquarters building through the eminent domain proceeding described in Note 9 -- “Property and Equipment, Net,” all existing intercompany operating leases related to this building that were previously eliminated on consolidation are now reflected on the balance sheet. These leases were determined to be at market rates on the date of the ownership change. In December 2020, the Company, as a lessee, terminated one of its operating leases for office space in Tampa, Florida. There was no gain or loss recognized for this early termination. The following table summarizes the Company’s operating and finance leases in which the Company is a lessee: Renewal Other Terms and Class of Assets Initial Term Option Conditions Operating lease: Office equipment 1 to 63 months Yes (a), (b) Office space 3 to 10 years Yes (b), (c) Finance lease: Office equipment 3 to 5 years Not applicable (d) (a) At the end of the lease term, the Company can purchase the equipment at fair market value. (b) There are no variable lease payments. (c) Rent escalation provisions exist. (d) There is a bargain purchase option. As of December 31, 2020, maturities of lease liabilities were as follows: Leases Operating Finance Due in Year 2021 $ 1,724 $ 19 2022 1,536 17 2023 887 9 Total lease payments 4,147 45 Less: interest and foreign taxes 133 2 Total lease obligations $ 4,014 $ 43 The following table provides quantitative information with regard to the Company’s operating and finance leases: Years Ended December 31, 2020 2019 Lease costs: Finance lease costs: Amortization – ROU assets* $ 18 $ 15 Interest expense 2 2 Operating lease costs* 1,123 314 Short-term lease costs* 167 198 Total lease costs $ 1,310 $ 529 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows – finance leases $ 2 $ 2 Operating cash flows – operating leases $ 1,132 $ 318 Financing cash flows – finance leases $ 17 $ 14 December 31, 2020 Weighted-average remaining lease term: Finance leases (in years) 2.7 Operating leases (in years) 2.8 Weighted-average discount rate: Finance leases 3.7 % Operating leases 2.8 % * Included in other operating expenses on the consolidated statements of income. The following table summarizes the Company’s operating leases in which the Company is a lessor: Renewal Other Terms and Class of Assets Initial Term Option Conditions Operating lease: Office space 1 to 3 years Yes (e) Retail space 3 to 20 years Yes (e) Boat docks/wet slips 1 to 12 months Yes (e) (e) There are no purchase options.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Note 18 -- Income Taxes A summary of income tax expense is as follows: Years Ended December 31, 2020 2019 2018 Current: Federal $ 1,089 $ 6,177 $ 7,443 State 30 1,362 1,490 Foreign 106 107 104 Total current taxes 1,225 7,646 9,037 Deferred: Federal 6,694 1,586 (245 ) State 1,436 287 392 Foreign (7 ) (2 ) (7 ) Total deferred taxes 8,123 1,871 140 Income tax expense $ 9,348 $ 9,517 $ 9,177 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, 2020 2019 2018 Amount % Amount % Amount % Income taxes at statutory rate $ 7,755 21.0 $ 7,579 21.0 $ 5,649 21.0 Increase (decrease) in income taxes resulting from: State income taxes, net of federal tax benefits 1,364 3.7 1,362 3.8 1,303 4.8 Effects of tax rate changes — — (37 ) — — — Stock-based compensation (296 ) (0.8 ) (159 ) (0.4 ) 2,156 8.0 Non-deductible executive compensation 757 2.0 685 1.9 306 1.1 Other (232 ) (0.6 ) 87 0.1 (237 ) (0.8 ) Income tax expense $ 9,348 25.3 $ 9,517 26.4 $ 9,177 34.1 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, 2019, 2018, and 2017 remain subject to examination by the Company’s major taxing jurisdictions. The Company elected to classify interest and penalties, if any, 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, 2020, 2019 and 2018. For the years ended December 31, 2020, 2019 and 2018, the Company recorded income taxes of $9,348, $9,517 and $9,177, respectively, resulting in effective tax rates of 25.3%, 26.4% and 34.1%, respectively. The decrease in the effective tax rate in 2019 as compared with 2018 was primarily attributable to the unfavorable factors in 2018 consisting of the negative effect of the derecognition of deferred tax assets of $1,825 for restricted stock awards of which market conditions would not be met prior to their expiry date, the disallowance of the deductibility of the $1,887 expense representing dividends cumulatively paid on such restricted stock awards which were reclassified from retained income (see Restricted Stock Awards in Note 21 -- “Stock-Based Compensation”), offset by an increase in nondeductible performance-based compensation expenses for 2019. 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 liabilities are as follows: December 31, 2020 2019 Deferred tax assets: Unearned premiums $ 9,687 $ 6,272 Losses and loss adjustment expenses 2,902 2,838 Stock-based compensation 1,084 878 Unearned revenue 335 120 Accrued expenses 146 86 Credit losses 120 77 Organizational costs 76 63 Bad debt reserve 52 9 Total deferred tax assets 14,402 10,343 Deferred tax liabilities: Gain on involuntary conversion (9,066 ) — Deferred policy acquisition costs (9,459 ) (5,469 ) Intangible assets (2,226 ) (2,214 ) Basis difference related to partnership investments (1,578 ) (1,188 ) Prepaid expenses (454 ) (392 ) Net unrealized investment gains (1,507 ) (1,547 ) Property and equipment (1,262 ) (1,661 ) Basis difference related to convertible senior notes (242 ) (1,256 ) Other (533 ) (624 ) Total deferred tax liabilities (26,327 ) (14,351 ) Net deferred tax liabilities $ (11,925 ) $ (4,008 ) 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, 2020 or 2019.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Note 19 -- Earnings Per Share U.S. GAAP requires the Company to use the two-class method in computing basic earnings (loss) per share since holders of the Company’s restricted stock have the right to share in dividends, if declared, equally with common stockholders. These participating securities affect the computation of both basic and diluted earnings (loss) per share during periods of net income (loss). A summary of the numerator and denominator of the basic and fully diluted earnings (loss) per common share is presented below: Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2020 Net income $ 27,580 Less: Income attributable to participating securities (1,462 ) Basic Earnings Per Share: Income allocated to common stockholders 26,118 7,351 $ 3.55 Effect of Dilutive Securities: Stock options — 23 Convertible senior notes 7,705 2,320 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 33,823 9,694 $ 3.49 (a) Shares in thousands. Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2019 Net income $ 26,576 Less: Income attributable to participating securities (1,448 ) Basic Earnings Per Share: Income allocated to common stockholders 25,128 7,580 $ 3.32 Effect of Dilutive Securities: Stock options — 12 Convertible senior notes 8,748 2,646 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 33,876 10,238 $ 3.31 (a) Shares in thousands. Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2018 Net income $ 17,725 Less: Loss attributable to participating securities* 717 Basic Earnings Per Share: Income allocated to common stockholders 18,442 7,878 $ 2.34 Effect of Dilutive Securities:** Stock options — 17 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 18,442 7,895 $ 2.34 (a) Shares in thousands. * Loss attributable to participating securities included the reclassification of cumulative dividends paid on certain restricted stock with market based vesting conditions from retained income to expense. See Restricted Stock Awards in Note 21 -- “Stock-Based Compensation” for additional information. ** Convertible senior notes were excluded due to antidilutive effect.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Stockholders' Equity	Note 20 -- Stockholders’ Equity Common Stock On December 19, 2019, the Board of Directors decided to extend the term of the 2019 stock repurchase plan to March 15, 2020. On March 13, 2020, the Board approved a stock repurchase plan for 2020 to repurchase up to During the years ended December 31, 2020, 2019 and 2018, the Company repurchased and retired 129,142, 454,010 and 511,628 shares, respectively, at weighted average prices per share of $39.93, $41.49 and $39.09, respectively. The total costs of shares repurchased, inclusive of fees and commissions, during the years ended December 31, 2020, 2019 and 2018 were $5,161, $18,851 and $20,015, respectively, or $39.96, $41.52 and $39.12 per share, respectively. On October 16, 2020, the Company’s Board of Directors declared a quarterly dividend of $0.40 per common share. The dividends were paid on December 18, 2020 to stockholders of record on November 20, 2020. Prepaid Share Repurchase Forward Contracts The Company has one outstanding prepaid share repurchase forward contract entered into with Societe Generale, a forward counterparty. The Company entered into this forward contract in conjunction with the issuance of the 4.25% Convertible Notes as described in Note 13 -- “Long-Term Debt” under Convertible Senior Notes The 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 the 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, the forward counterparty will pay an equivalent amount to the Company. The shares to be purchased under the forward contract will be treated as retired for financial statement purposes as of the effective date of the forward contract, but will remain outstanding for corporate law purposes, including for purposes of any future stockholder votes. The Company determined that the 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 earnings (loss) per share. Preferred Stock On May 15, 2020, the Company amended its Articles of Incorporation, effective on the same date, to cancel the designation of 1,500,000 shares of the Company’s authorized preferred stock as Series A Cumulative Redeemable Preferred Stock, and the designation of 400,000 shares of the Company’s authorized preferred stock as Series B Junior Participating Preferred Stock. As a result, all 20,000,000 authorized shares of the Company’s preferred stock are undesignated. Since the designation of these types of preferred stock, none have ever been issued by the Company.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note 21 -- Stock-Based Compensation Incentive Plan The Company currently has outstanding stock-based awards granted under its 2007 Stock Option and Incentive Plan and 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. At December 31, 2020, there were 1,477,976 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, 2020, 2019 and 2018 is as follows (option amounts not in thousands): Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Outstanding at January 1, 2018 130,000 $ 34.82 8.2 years $ 472 Granted 110,000 $ 40.00 Outstanding at December 31, 2018 240,000 $ 37.19 8.8 years $ 3,278 Granted 110,000 $ 53.00 Exercised (10,000 ) $ 6.30 Outstanding at December 31, 2019 340,000 $ 43.21 7.9 years $ 1,657 Granted 110,000 $ 48.00 Exercised (10,000 ) $ 6.30 Outstanding at December 31, 2020 440,000 $ 45.25 7.6 years $ 3,113 Exercisable at December 31, 2020 165,000 $ 42.17 6.7 years $ 1,664 The following table summarizes information about options exercised for the years ended December 31, 2020, 2019 and 2018 (option amounts not in thousands): 2020 2019 2018 Options exercised 10,000 10,000 — Total intrinsic value of exercised options $ 288 $ 347 $ — Tax benefits realized $ 71 $ 85 $ — For the years ended December 31, 2020, 2019 and 2018, the Company recognized $1,180, $870 and $521, respectively, of compensation expense which was included in general and administrative personnel expenses. Deferred tax benefits related to stock options were $76, $22 and $79 for the years ended December 31, 2020, 2019 and 2018, respectively. At December 31, 2020 and 2019, there was $1,889 and $1,835, 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 2.4 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 years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Expected dividend yield 3.48 % 3.34 % 4.00 % Expected volatility 38.68 % 40.17 % 42.22 % Risk-free interest rate 1.63 % 2.53 % 2.57 % Expected life (in years) 5 5 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 include only service conditions. The determination of fair value with respect to the awards with only 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, 2020, 2019 and 2018 is as follows: Number of Restricted Stock Awards Weighted Average Grant Date Fair Value Nonvested at January 1, 2018 597,690 $ 32.82 Granted 189,860 $ 41.81 Vested (98,617 ) $ 40.82 Forfeited (56,637 ) $ 36.46 Nonvested at December 31, 2018 632,296 $ 33.33 Granted 180,404 $ 42.79 Vested (116,164 ) $ 40.10 Forfeited (299,776 ) $ 25.31 Nonvested at December 31, 2019 396,760 $ 41.71 Granted 192,680 $ 45.57 Vested (146,801 ) $ 40.54 Forfeited (18,852 ) $ 43.60 Nonvested at December 31, 2020 423,787 $ 43.79 The Company recognized compensation expense related to restricted stock, which is included in general and administrative personnel expenses, of $6,953, $5,590 and $4,111 for the years ended December 31, 2020, 2019 and 2018, respectively. At December 31, 2020 and 2019, there was approximately $13,666 and $12,661, 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 2.3 years. 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, 2020, 2019 and 2018. 2020 2019 2018 Deferred tax benefits recognized $ 1,296 $ 1,075 $ 862 Tax benefits realized for restricted stock and paid dividends $ 1,448 $ 1,129 $ 1,086 Fair value of vested restricted stock $ 5,952 $ 4,658 $ 4,025 During 2019, 284,000 shares of the Company’s restricted stock awards granted to employee and nonemployee directors were forfeited for not meeting their market-based vesting conditions. Any dividend payment associated with these awards during 2019 was expensed when declared. As a result, for the year ended December 31, 2019, the Company recognized dividends of $237 in general and administrative personnel expenses for $170 and in other operating expenses for $67. During 2018, the Company reclassified from retained income dividends of $1,887 cumulatively paid on unvested restricted stock awards with market based vesting conditions to general and administrative personnel expenses for $1,346 and to other operating expenses for $541. These awards, of which the market conditions would not have been met, were granted to the Company’s employee and nonemployee directors during 2013. As a result, for the year ended December 31, 2018, the Company recognized dividends of $195 related to these awards in general and administrative personnel expenses for $159 and in other operating expenses for $36. During the years ended December 31, 2020, 2019 and 2018, no awards were issued with other than service-based vesting conditions.

Employee Benefit Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2020
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plan	Note 22 -- 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 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 benefits. The Company’s liability for the gratuity plan reflects the undiscounted benefit obligation payable as of the balance sheet date, which was based upon the employees’ salary and years of service. At December 31, 2020 and 2019, the amounts accrued under the gratuity plan were $130 and $89, respectively. In addition, the Company provides matching contributions with respect to two defined contribution plans: the Provident Fund and the Employees State Insurance Fund, both of which are available to qualifying employees in India. Expense recognized by the Company for all benefit plans in India was $41, $17 and $14, respectively, for the years ended December 31, 2020, 2019 and 2018.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 23 -- Commitments and Contingencies Rental Income The Company leases available space at the Company’s various investment properties to non-affiliates at various terms. In addition, the Company leases boat slips and docks on a long-term basis. Expected annual rental income due under non-cancellable operating leases for all properties owned at December 31, 2020 is as follows: Year Amount 2021 $ 3,706 2022 3,537 2023 3,428 2024 3,414 2025 3,335 Thereafter 13,710 Total $ 31,130 Capital Commitment As described in Note 5 -- “Investments” under Limited Partnership Investments Litigation On April 1, 2020, Gulf to Bay LM, LLC (“GTB”), a wholly-owned real estate subsidiary of the Company, sued The Kroger Co. in federal district court to enforce a guaranty of a commercial lease executed between GTB and Lucky’s Market Operating Company, LLC which filed for bankruptcy in the first quarter of 2020. See Note 28 -- “Subsequent Events.”

Quarterly Results of Operations

Quarterly Results of Operations	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations	Note 24 -- Quarterly Results of Operations (Unaudited) The tables below summarize unaudited quarterly results of operations for 2020, 2019 and 2018. Three Months Ended 03/31/20 06/30/20 09/30/20 12/31/20 Net premiums earned $ 61,646 $ 73,449 $ 62,463 $ 64,902 Total revenue 55,380 80,717 104,027 70,313 Losses and loss adjustment expenses 28,078 39,843 51,743 40,372 Policy acquisition and other underwriting expenses 11,826 12,991 14,210 14,832 Interest expense 2,970 3,020 2,856 2,888 Total expenses 54,723 68,894 82,491 67,401 Income before income taxes 657 11,823 21,536 2,912 Net income 547 8,936 15,390 2,707 Comprehensive (loss) income (1,585 ) 10,286 15,634 2,611 Earnings per share: Basic $ 0.07 $ 1.16 $ 1.97 $ 0.35 Diluted* $ 0.07 $ 1.08 $ 1.68 $ 0.35 * During the quarters ended March 31, 2020 and December 31, 2020, the convertible senior notes were antidilutive. Three Months Ended 03/31/19 06/30/19 09/30/19 12/31/19 Net premiums earned $ 51,184 $ 51,998 $ 54,434 $ 58,698 Total revenue 60,634 58,630 59,979 63,231 Losses and loss adjustment expenses 26,996 24,293 27,327 28,898 Policy acquisition and other underwriting expenses 9,673 10,077 10,988 11,759 Interest expense 4,337 2,884 2,907 2,927 Total expenses 51,351 48,315 52,260 54,455 Income before income taxes 9,283 10,315 7,719 8,776 Net income 6,738 7,553 5,853 6,432 Comprehensive income 8,732 8,767 6,189 6,519 Earnings per share: Basic $ 0.82 $ 0.93 $ 0.73 $ 0.84 Diluted** $ 0.82 $ 0.90 $ 0.73 $ 0.82 * * During the quarters ended March 31, 2019 and September 30, 2019, the convertible senior notes were antidilutive. Three Months Ended 03/31/18 06/30/18 09/30/18 12/31/18 Net premiums earned $ 53,522 $ 52,965 $ 54,177 $ 52,758 Total revenue 57,739 58,813 61,743 52,997 Losses and loss adjustment expenses 19,655 21,803 25,769 42,101 Policy acquisition and other underwriting expenses 9,360 9,959 9,829 9,795 Interest expense 4,470 4,505 4,552 4,569 Total expenses 42,935 47,293 49,820 64,342 Income (loss) before income taxes 14,804 11,520 11,923 (11,345 ) Net income (loss) 10,791 6,403 8,997 (8,466 ) Comprehensive income (loss) 8,340 6,413 8,955 (8,818 ) Earnings (loss) per share: Basic $ 1.25 $ 0.96 $ 1.08 $ (0.95 ) Diluted*** $ 1.11 $ 0.92 $ 1.00 $ (0.95 ) * ** During the quarter ended December 31, 2018, the convertible senior notes and stock options were antidilutive.

Regulatory Requirements and Res

Regulatory Requirements and Restrictions	12 Months Ended
	Dec. 31, 2020
Regulatory Requirements And Restrictions [Abstract]
Regulatory Requirements and Restrictions	Note 25 -- 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 2020, without prior regulatory approval, $139,670 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 2021. 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 (“FLOIR”), 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 and TypTap to maintain capital and surplus equal to the greater of 10% of their respective liabilities or a statutory minimum as defined in the Code. At December 31, 2020, HCPCI and TypTap were required to maintain minimum capital and surplus of $31,140 and $10,000, respectively. At December 31, 2019, HCPCI and TypTap were required to maintain minimum capital and surplus of $21,700 and $10,000, respectively. HCPCI and TypTap were in compliance with these requirements at December 31, 2020 and 2019. 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 to September 2020, HCPCI and TypTap have each maintained a cash deposit with the Insurance Commissioner of the State of Florida in the amount of $300 to meet regulatory requirements. TypTap later increased its cash deposit to $2,000 and placed a U.S. Government security in the amount of $310 with the State during the fourth quarter of 2020 in connection with its current expansion. 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, only HCPCI was qualified to make dividend payments at December 31, 2020, 2019 and 2018. Without prior written approval from the FLOIR, TypTap was not permitted to make any dividend payments. In addition, Florida property and casualty insurance companies are required to adhere to prescribed premium-to-capital surplus ratios. Florida state law requires that the ratio of 90% of written premiums divided by surplus as to policyholders does not exceed 10 to 1 for gross written premiums or 4 to 1 for net written premiums. 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, 2020 2019 2018 HCPCI: Gross 3.02 to 1 1.92 to 1 2.17 to 1 Net 1.84 to 1 1.15 to 1 1.27 to 1 TypTap: Gross 2.47 to 1 2.23 to 1 0.57 to 1 Net 1.50 to 1 1.63 to 1 0.38 to 1 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, 2020 and 2019, Claddaugh’s statutory capital and surplus was approximately $58,300 and $34,500, respectively. For the years ended December 31, 2020, Claddaugh reported statutory net income of approximately of $1,400 as opposed to statutory net losses of approximately $4,400 and $8,100 for the years ended December 31, 2019 and 2018, respectively. During 2020, the Company contributed approximately $22,600 of capital to Claddaugh versus $6,000 and $10,000 of capital returned by Claddaugh during 2019 and 2018, respectively. 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, 2020 and 2019, 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, 2020, the combined statutory capital and surplus and minimum capital and surplus of the Company’s U.S. insurance subsidiaries were approximately $158,430 and $122,959, respectively. At December 31, 2020 and 2019, restricted net assets represented by the Company’s insurance subsidiaries amounted to $160,710 and $191,210, respectively.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Note 26 -- Related Party Transactions Claddaugh had a reinsurance agreement with Oxbridge Reinsurance Limited (“Oxbridge”) whereby a portion of the business assumed from the Company’s insurance subsidiary, HCPCI, was ceded by Claddaugh to Oxbridge. On May 28, 2018, Claddaugh terminated its multi-year reinsurance contract with Oxbridge, effective June 1, 2018. Upon termination, Claddaugh agreed to pay Oxbridge a settlement fee of $600 and derecognized the benefits accrued in connection with retrospective provisions. The settlement fee and the derecognition of the $622 of accrued benefits were recorded in premiums ceded. 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. Among the Oxbridge shareholders were Paresh Patel, the Company’s chief executive officer, and members of his immediate family and three of the Company’s non-employee directors including Sanjay Madhu who served as Oxbridge’s president and chief executive officer. In March 2018, the Company purchased six-month 2018, the Company moved the funds from the certificate of deposit accounts to a money market account. The interest rates and terms of the accounts were comparable to those offered at the time to other clients of the bank. All accounts with this bank were closed during 2019 .

Condensed Financial Information

Condensed Financial Information of HCI Group, Inc.	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Condensed Financial Information of HCI Group, Inc.	Note 27 -- Condensed Financial Information of HCI Group, Inc. Condensed financial information of HCI Group, Inc. is as follows: Balance Sheets December 31, 2020 2019 Assets Cash and cash equivalents $ 13,944 $ 17,738 Fixed-maturity securities, available for sale, at fair value 216 745 Equity securities, at fair value 9,496 6,689 Limited partnership investments, at equity 20,542 21,405 Note receivable – related party 23,280 1,280 Investment in subsidiaries 304,816 290,675 Property and equipment, net 753 345 Right-of-use assets - operating leases 7,118 2,023 Income tax receivable 8,348 — Other assets 4,036 2,443 Total assets $ 392,549 $ 343,343 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 6,660 $ 5,813 Lease liabilities - operating leases 4,319 713 Income tax payable — 1,443 Deferred income taxes, net 1,645 2,587 Revolving credit facility 23,750 9,750 Long-term debt 133,967 134,080 Due to related parties 21,072 3,414 Total liabilities 191,413 157,800 Total stockholders’ equity 201,136 185,543 Total liabilities and stockholders’ equity $ 392,549 $ 343,343 Statements of Income Years Ended December 31, 2020 2019 2018 Net investment (loss) income $ (676 ) $ 2,295 $ 5,348 Net realized investment gains (losses) 330 (541 ) 1,544 Net unrealized investment gains (losses) 229 1,385 (1,514 ) Net other-than-temporary impairment losses — — (80 ) Credit losses on investments (20 ) — — Loss on repurchases of convertible senior notes (150 ) — — Interest expense (10,710 ) (12,042 ) (17,007 ) Operating expenses (6,887 ) (6,353 ) (5,429 ) Loss before income tax benefit and equity in income of subsidiaries (17,884 ) (15,256 ) (17,138 ) Income tax benefit 4,024 3,092 1,856 Net loss before equity in income of subsidiaries (13,860 ) (12,164 ) (15,282 ) Equity in income of subsidiaries 41,440 38,740 33,007 Net income $ 27,580 $ 26,576 $ 17,725 Statements of Cash Flows Years Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 27,580 $ 26,576 $ 17,725 Adjustments to reconcile net income to net cash used in operating activities: Stock-based compensation 4,488 3,638 2,550 Net realized investment (gains) losses (330 ) 541 (1,544 ) Net unrealized investment (gains) losses (229 ) (1,385 ) 1,514 Net (accretion of discount) amortization of premiums on investments in fixed-maturity securities (42 ) 66 (3 ) Depreciation and amortization 4,686 5,194 7,737 Net income from limited partnership investments 1,781 (701 ) (3,007 ) Distributions from limited partnership interests 844 1,661 1,495 Other-than-temporary impairment losses — — 80 Credit losses on investments 20 — — Loss on repurchases of convertible senior notes 150 — — Equity in income of subsidiaries (41,440 ) (38,740 ) (33,007 ) Deferred income taxes (935 ) (916 ) 1,075 Changes in operating assets and liabilities: Income taxes (9,791 ) 4,462 4 Other assets (629 ) (3,042 ) (144 ) Accrued expenses and other liabilities 1,096 1,750 273 Due to related parties 17,438 (16,754 ) (2,600 ) Net cash provided by (used in) operating activities 4,687 (17,650 ) (7,852 ) Cash flows from investing activities: Investment in limited partnership interest (3,376 ) (1,602 ) (5,125 ) Investment in note receivable – related party (22,000 ) — — Purchase of fixed-maturity securities (7 ) (234 ) (5,864 ) Purchase of equity securities (35,855 ) (8,733 ) (16,913 ) Purchase of short-term and other investments (200 ) (187 ) (50,510 ) Purchase of property and equipment (742 ) (176 ) (154 ) Proceeds from sales of fixed-maturity securities 447 477 2,215 Proceeds from calls, repayments and maturities of fixed-maturity securities 27 35,361 — Proceeds from sales of equity securities 30,688 9,906 20,698 Proceeds from sales, redemptions and maturities of short-term and other investments 537 25,733 25,401 Collection of note receivable – related party — — 6,000 Distributions from limited partnership interests 1,614 948 158 Dividends received from subsidiary 52,500 44,000 42,000 Return of capital from subsidiary 9 6,000 10,000 Investment in subsidiaries (22,629 ) (5,000 ) — Net cash provided by investing activities 1,013 106,493 27,906 (continued) Statements of Cash Flows - (Continued) Years Ended December 31, 2020 2019 2018 Cash flows from financing activities: Repurchases of common stock (1,547 ) (1,203 ) (1,151 ) Repurchases of common stock under share repurchase plan (5,161 ) (18,851 ) (20,015 ) Repurchases of convertible senior notes (4,459 ) — — Debt issuance costs paid — (459 ) — Cash dividends paid to stockholders (12,694 ) (13,012 ) (11,318 ) Cash dividends received under share repurchase forward contract 306 306 967 Net borrowing under revolving credit facility 14,000 9,750 — Proceeds from exercise of stock options 63 63 — Repayment of long-term debt (2 ) (89,991 ) — Net cash used in financing activities (9,494 ) (113,397 ) (31,517 ) Net decrease in cash and cash equivalents (3,794 ) (24,554 ) (11,463 ) Cash and cash equivalents at beginning of year 17,738 42,292 53,755 Cash and cash equivalents at end of year $ 13,944 $ 17,738 $ 42,292

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Note 28 -- Subsequent Events On January 15, 2021, the Company’s Board of Directors declared a quarterly dividend of $0.40 per common share. The dividends are payable on March 19, 2021 to stockholders of record on February 19, 2021. On January 18, 2021, the Company entered into a renewal rights agreement with United in connection with the assumed business described in Note 1 -- “Nature of Operations.” Under the agreement, the Company acquired all rights to renew and/or replace United’s insurance policies at the end of their respective policy periods in the states of Connecticut, Massachusetts, New Jersey and Rhode Island. The policy replacement date is June 1, 2021 or later as mutually agreed by both parties. The agreement also contains a non-compete clause that does not permit United to engage in marketing, selling, writing, renewing, or servicing any insurance contract in these states until July 1, 2024. In return, United received 100,000 shares of HCI’s common stock and a 6% commission on the aggregate replacement premium in excess of $80,000. The total commission will not exceed $3,100. On February 12, 2021, the Company committed to provide a revolving line of credit with borrowing capacity of up to $60,000 to TypTap Insurance Group, Inc., a wholly-owned subsidiary. The credit line was available until the earlier of June 30, 2022 and the securing of alternative financing. This commitment has ended on February 26, 2021 after the investment transaction described below. On February 26, 2021, TTIG, the Company’s wholly-owned subsidiary, completed an investment transaction with a fund associated with Centerbridge Partners, L.P. Under the agreement, TTIG issued 9,000,000 voting shares of its Series A-1 Preferred Stock and 1,000,000 non-voting shares of its Series A-2 Preferred Stock (together “Series A Preferred Stock”), $0.001 par value, at a price of $10 per share for total proceeds of $100,000. Cumulative dividends are payable semi-annually in cash or paid-in-kind at TTIG’s option. Cash dividend rates are $0.50 per share in Year 1, $0.60 per share in Year 2, $0.75 per share in Year 3, and $0.95 in Year 4 and thereafter. The rates for paid-in-kind are $0.60 per share in Year 1 and $0.70 per share in Year 2. The holders of the Series A Preferred Stock have the right to convert the stock at any time into shares of common stock with an initial conversion rate of 1 to 1 In connection with the transaction, the lead investor was granted warrants to purchase 750,000 shares of HCI with an exercise price of $54.40 per share. The warrants will be immediately exercisable and will expire on the fourth anniversary of the date of issuance. On March 2, 2021, GTB received from Kroger Co. approximately $3,100 in settlement of the lawsuit filed by GTB to enforce the guaranty described in Note 23 -- “Commitments and Contingencies.” GTB recorded this settlement in 2021. On March 8, 2021, the Company repaid the outstanding balance of $23,750 on its revolving credit facility. The borrowing capacity of the facility is now $65,000.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation. The accompanying financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”).
Adoption of New Accounting Standards	Adoption of New Accounting Standards. In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2016-13 (“ASU 2016-13”), Financial Instruments – Credit Losses (Topic 326), effective January 1, 2020. This update amends guidance on the recognition and measurement of credit losses for assets held at amortized cost and available-for-sale debt securities. For assets held at amortized cost, ASU 2016-13 eliminates the probable initial recognition threshold and, instead, requires credit losses to be measured using the Current Expected Credit Loss (“CECL”) model. The CECL model requires the measurement of all expected credit losses based on historical experience, current conditions, and reasonable and supportable forecasts which incorporate forward-looking information. The incurred loss model previously used to estimate credit losses is replaced with the CECL model for premiums receivable and reinsurance recoverable. For available-for-sale debt securities, credit losses will continue to be measured in a manner similar to the current standard. See also “Allowance for Credit Losses” within this note. Effective January 1, 2020, the Company used a modified retrospective method for transition to the CECL model. The Company recognized a cumulative-effect adjustment of $453 related to reinsurance recoverable to beginning retained income with a corresponding entry to an allowance for credit losses account. Any subsequent changes to the expected credit losses will be recognized in the Company’s consolidated statement of income.
Principles of Consolidation	Principles of Consolidation. The accompanying consolidated financial statements include the accounts of HCI Group, Inc. and its majority-owned and controlled subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. In addition, the Company evaluates its relationships or investments for consolidation pursuant to authoritative accounting guidance related to the consolidation of variable interest entities under the Variable Interest Model prescribed by the FASB. A variable interest entity is consolidated when the Company has the power to direct activities that most significantly impact the economic performance of the variable interest entity and has the obligation to absorb losses or the right to receive benefits from the variable interest entity that could potentially be significant to the variable interest entity. When a variable interest entity is not consolidated, the Company uses the equity method to account for the investment. Under this method, the carrying value is generally the Company’s share of the net asset value of the unconsolidated entity, and changes in the Company’s share of the net asset value are recorded in net investment income.
Use of Estimates	Use of Estimates. The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as well as the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ materially from these estimates. Material estimates that are particularly susceptible to significant change in the near term are primarily related to losses and loss adjustment expenses, reinsurance with retrospective provisions, reinsurance recoverable, deferred income taxes, limited partnership investments and stock-based compensation expense.
Cash and Cash Equivalents	Cash and Cash Equivalents. The Company considers all short-term highly liquid investments with original maturities of less than three months to be cash and cash equivalents. At December 31, 2020 and 2019, cash and cash equivalents consisted of cash on deposit with financial institutions and securities brokerage firms, and certificates of deposit.
Available-for-Sale Fixed-Maturity Securities	Available-for-Sale Fixed-Maturity Securities. Fixed-maturity securities that are available for sale include debt securities and redeemable preferred stock. The Company’s available-for-sale securities are carried at fair value. Changes in the fair value of available-for-sale securities representing unrealized gains or losses, other than impairments, are excluded from net investment income and reported in stockholders’ equity as a component of accumulated other comprehensive income, net of deferred income taxes. Realized investment gains and losses from sales are recorded on the trade date and are determined using the first-in first-out (“FIFO”) method. Investment income is recognized as earned and discounts or premiums arising from the purchase of debt securities are recognized in investment income using the interest method over the estimated remaining term of the security. Gains and losses from call redemptions and repayments are charged to investment income. The Company reviews fixed-maturity securities for impairment on a monthly basis. Effective January 1, 2020, net unrealized loss in the fair value of an available-for-sale fixed-maturity security is evaluated for impairment. When reviewing impaired 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 currently as impairment losses in income. Impaired securities where the Company has the ability and intent to hold until recovery and believes it is not probable that the Company will be required to sell these securities prior to their anticipated recovery or maturity, are evaluated for the existence of credit-related losses. 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, the failure of the issuer to make a scheduled payment, 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. If such credit-related losses exist, an allowance for credit losses is established with a charge in the statement of income. Subsequent changes in the allowance, whether favorable or unfavorable, are recorded on the statement of income. See additional information in the Allowance for Credit Losses section within this note. Any remaining impairment loss related to other non-credit factors such as changes in interest rates or market conditions is reflected as a component of accumulated other comprehensive income (loss). Prior to January 1, 2020, when the fair value of any investment was lower than its cost, an assessment was made to determine whether the decline was temporary or other-than-temporary. If the decline was determined to be other-than-temporary, the investment was written down to fair value and an impairment loss was recognized in income in the period in which the Company made such determination. When reviewing impaired securities, the Company considered its ability and intent to hold these securities and whether it was probable that the Company would be required to sell these securities prior to their anticipated recovery or maturity. For the fixed-maturity securities that the Company intended to sell or it was probable that the Company would have to sell before recovery or maturity, the unrealized losses were recognized as other-than-temporary losses in income. In instances where there were credit-related losses associated with the impaired fixed-maturity securities for which the Company asserted that it did not have the intent to sell, and it was probable that the Company would 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 was recognized in income, and the amount of the other-than-temporary impairment loss related to other non-credit factors such as changes in interest rates or market conditions was recorded as a component of accumulated other comprehensive income (loss).
Allowance for Credit Losses	Allowance for Credit Losses. Allowance for credit losses represents an estimation of potential losses that the Company may experience due to credit risk. The allowance for credit losses account is a contra account of a financial asset to reflect the net amount expected to be collected. Any increase or decrease in the allowance for credit losses related to investments is recognized and reflected as credit losses on investments in the Company’s consolidated statements of income. For all other financial assets, credit loss expense is included in other operating expenses. When the risk of credit loss becomes certain, the allowance for credit losses account will be written off against the financial asset. Under the CECL model, the Company measures all expected credit losses related to relevant financial assets based on historical experience, current conditions, and reasonable and supportable forecasts which incorporate forward-looking information. The Company primarily uses a discounted cash flow method and a rating-based method in estimating credit losses at a reporting date for financial assets under the scope of the CECL model. The discounted cash flow method is a valuation method used to estimate the value of a financial asset based on its future cash flows. The Company uses this method to determine the expected credit losses for available-for-sale fixed-maturity securities. In addition, the Company elected not to measure an allowance for credit losses for accrued interest receivable as any uncollectible amount is adjusted to interest income on a monthly basis. For certain financial assets related to insurance business such as reinsurance recoverable and reinsurance receivable for premium refund, the Company uses a rating-based method, which is a modified version of the probability of default method. It requires two key inputs: a) the liquidation rate and b) the amount of loss exposure. The liquidation rate, which is published annually, is the ratio of impaired insurance companies that were eventually liquidated to the group of insurance companies considered by A.M. Best in its study. The amount of loss exposure represents the future billing balance, net of any collateral, spread over the projected periods that are based on the Company’s historical claim payment pattern. The rating-based method measures credit losses by multiplying the future billings grouped by insurance rating over the projected periods by their corresponding liquidation rates by insurance rating. At present, the exposure to credit losses for certain financial assets related to non-insurance business is considered immaterial to the Company’s financial position.
Equity Securities	Equity Securities. Equity securities represent ownership interests held by the Company in entities for investment purposes. Unrealized holding gains and losses related to equity securities are reported in the consolidated statement of income as net unrealized investment gains and losses. Realized investment gains and losses from sales are recorded on the trade date and are determined using the FIFO method (see Equity Securities in Note 5 -- “Investments”).
Short Term Investment	Short-Term Investments. Short-term investments include certificates of deposit issued by financial institutions with original maturities of more than three months but less than one year at date of acquisition. These short-term investments are carried at cost or amortized cost, which approximates fair value.
Limited Partnerships Investments	Limited Partnership Investments. The Company has interests in limited partnerships that are not registered under the United States Securities Act of 1933, as amended, the securities laws of any state or the securities laws of any other jurisdictions. The partnership interests cannot be resold in the public market and any withdrawal is subject to the terms and conditions of the partnership agreement. The Company has no influence over partnership operating and financial policies. The Company uses the equity method to account for the investments with ownership interest greater than five percent. For the investments with ownership interest at five percent or less, the Company uses the net asset value method to estimate the fair value of these investments. The Company generally recognizes its share of the limited partnership’s earnings or losses on a three-month lag. Due to the lag, the Company may record an adjustment to the Company’s most recent share of net asset value when the amount can be reasonably estimated and a significant adverse impact on the net asset value is expected as a result of a major economic event Net investment income or loss from limited partnerships represents a net aggregate amount of operating results allocated to the Company based on the percentage of ownership interest in each limited partnership. 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. The Company has a 90% equity interest in a limited liability company (treated as a joint venture under U.S. GAAP) that owns land for lease or for sale. The joint venture was determined to be a variable interest entity as it lacks sufficient equity to finance its activities without additional subordinated financial support. Despite having a majority equity interest, the Company does not have the power to direct the activities that most significantly impact the economic performance of the joint venture and, accordingly, is not required to consolidate the joint venture as its primary beneficiary. As a result, the Company uses the equity method to account for this investment. 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.
Assets Held For Sale	Assets Held for Sale. Assets held for sale are valued at the lower of the carrying value or fair value less costs to sell. Assets are classified as held for sale when the following criteria are met: (i) management has the authority and commits to a plan to sell the asset; (ii) the asset is available for immediate sale in its present condition; (iii) there is an active program to locate a buyer and the plan to sell the asset has been initiated; (iv) the sale of the asset is probable within one year; (v) the property is being actively marketed at a reasonable sale price relative to its current fair value; and (vi) it is unlikely that the plan to sell will be withdrawn or that significant changes to the plan will be made. In determining the fair value of the assets less costs to sell, the Company primarily relies on the value determined by an independent appraiser. If the estimated fair value less costs to sell is less than the carrying value of the asset, the asset is written down to its estimated fair value less costs to sell and an impairment loss is recognized in the consolidated statement of income. Depreciation is not recorded while assets are classified as held for sale.
Real Estate Investments	Real Estate Investments. Real estate investments include real estate and the related assets purchased for investment purposes (see Note 5 -- “Investments”). 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. Deferred policy acquisition costs (“DAC”) represent direct costs to acquire insurance contracts and consist of premium taxes and commissions paid to outside agents at the time of collection of the policy premium. DAC also includes a cash bonus and other related expenses in association with the successful transition of policies from Anchor for the replacement policies and issuance of renewal policies under the Company’s own rates and terms. DAC is amortized over the life of the related policy in relation to the amount of gross premiums earned. Ceding commission and related costs paid to United under the quota share reinsurance agreement are also deferred and amortized over the life of the reinsurance agreement. 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 gross premium earned 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 gross premium earned estimates discussed above are revised.
Property and Equipment	Property and Equipment. Property and equipment is stated at cost less accumulated depreciation and amortization, which is included in other operating expenses. Depreciation is calculated on a straight-line basis over the estimated useful lives as follows: building, 39 years; computer hardware and software, three years; and furniture and office equipment, three to seven years. Leasehold improvements are amortized over the shorter of the lease term or the asset’s useful life. Land is not depreciated. Expenditures for improvements are capitalized to the property accounts. Replacements and maintenance and repairs that do not improve or extend the life of the respective assets are expensed as incurred. The Company capitalizes both internal and external costs for internally developed software during the application development stage. During the preliminary project and post-implementation stage, internal-use software development costs are expensed as incurred. Capitalized software costs are depreciated on a straight-line basis over the estimated useful life of seven years.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets. Long-lived assets, such as property and equipment, are reviewed for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. The Company assesses the recoverability of long-lived assets by determining whether the assets can be recovered from undiscounted future cash flows. Recoverability of long-lived assets is dependent upon, among other things, the Company’s ability to maintain profitability so as to be able to meet its obligations when they become due. In the opinion of management, based upon current information and projections, long-lived assets will be recovered over the period of benefit.
Intangible Assets	Intangible Assets. Intangibles consist of the value attributable to the acquired in-place leases and the primary, or anchor, tenant relationships. The value attributable to the anchor tenant relationship represents the economic benefits of having a nationally recognized retailer as the lead tenant, which draws consumer traffic and other tenants to the retail center. These intangibles are amortized to expense over the related lease term. Amortization of the intangibles related to real estate investments is reflected in net investment income in the consolidated statement of income. The Company reviews these intangible assets for impairment annually or when events or changes in circumstances indicate the carrying value may not be recoverable. In the event the Company determines the carrying value is not recoverable, an impairment loss is recorded in the Company’s consolidated statement of income.
Leases	Leases. The Company leases office equipment, storage units, and office space from non-affiliates under terms ranging from one month up to ten years. In assessing whether a contract is or contains a lease, the Company first determines whether there is an identified asset in the contract. The Company then determines whether the contract conveys the right to obtain substantially all of the economic benefits from use of the identified asset or the right to direct the use of the identified asset. The Company elects not to record any lease with a term of 12 months or less on the consolidated balance sheet. For such short-term leases, the Company recognizes the lease payments in expense on a straight-line basis over the lease term. If the contract is or contains a lease and the Company has the right to control the use of the identified asset, the right-of-use (“ROU”) asset and the lease liability is measured from the lease component of the contract and recognized on the consolidated balance sheet. In measuring the lease liability, the Company uses its incremental borrowing rate for a loan secured by a similar asset that has a term similar to the lease term to discount the lease payments. The contract is further evaluated to determine the classification of the lease as to whether it is finance or operating. If the lease is a finance lease, the ROU asset is depreciated to depreciation expense over the shorter of the useful life of the asset or the lease term. Interest expense is recorded in connection with the lease liability using the effective interest method. If the lease is an operating lease, the ROU asset is amortized to lease expense on a straight-line basis over the lease term. For the presentation of finance leases on the Company’s consolidated balance sheet, ROU assets and corresponding lease liabilities are included with property and equipment, net, and long-term debt, respectively. For the presentation of operating leases on the Company’s consolidated balance sheet, ROU assets are presented as right-of-use assets – operating leases and corresponding lease liabilities are reflected as lease liabilities – operating leases. The Company as a lessor leases its commercial and retail properties, boat slips, and docks to non-affiliates at various terms. If the contract gives the Company’s customer the right to control the use of the identified asset, revenue is recognized on a straight-line basis over the lease term. Initial direct costs incurred by the Company are deferred and amortized on a straight-line basis over the lease term. The Company also records an unbilled receivable, which is the amount by which straight-line revenue exceeds the amount billed in accordance with the lease.
Lease Acquisition Costs	Lease Acquisition Costs. Lease acquisition costs represent capitalized costs of finding and acquiring tenants such as leasing commissions, legal, and marketing expenses. The costs are included in other assets on the consolidated balance sheet. The Company amortizes these costs in other operating expenses on a straight-line basis over the term of a lease.
Long-Term Debt	Long-Term Debt. Long-term debt includes debt instruments and finance lease obligations. A debt instrument is generally classified as a liability and carried at amortized cost, net of any discount and issuance costs. At issuance, a debt instrument with embedded features such as conversion and redemption options is evaluated to determine whether bifurcation and derivative accounting is applicable. If such instrument is not subject to derivative accounting, it is further evaluated to determine if the Company is required to separately account for the liability and equity components. 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 Stock Repurchase Forward Contract	Prepaid Share Repurchase Forward Contract. A prepaid share repurchase forward contract is generally a contract that allows the Company to buy from the counterparty a specified number of common shares at a specific time at a given forward price. The Company entered into such a contract and evaluated the characteristics of the forward contract to determine whether it met the definition of a derivative financial instrument pursuant to U.S. GAAP. The Company determined the forward contract is an equity contract on the Company’s common shares requiring physical settlement in common shares of the Company. As such, the transaction is recognized as a component of stockholders’ equity with a charge to additional paid-in capital equal to the prepayment amount, which represents the cash paid to the counterparty. There will be no recognition in earnings for changes in fair value in subsequent periods.
Losses and Loss Adjustment Expenses	Losses and Loss Adjustment Expenses. Reserves for losses and loss adjustment expenses (“LAE”) are determined by establishing liabilities in amounts estimated to cover incurred losses and LAE. Such reserves are determined based on the assessment of claims reported and the development of pending claims. These reserves are based on individual case estimates for the reported losses and LAE and estimates of such amounts that are incurred but not reported. Changes in the estimated liability are charged or credited to income as the losses and LAE are settled. 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 payments received prior to the policy effective date are recorded as advance premiums. Once the policy is in force, the premiums are recorded as described under “ Premium Revenue ” below.
Premium Receivable	Premium Receivable. Premium receivable represents the amount of premiums due from policyholders for insurance coverage. Premiums are recorded as receivable in the Company’s general ledger on the effective date of the policy. Premiums are billed to the policyholder 45-60 days in advance of the effective date. The policyholder is given a 30-day grace period after the effective date to pay the premium before the insurance coverage is cancelled. If the policyholder does not pay the premium, the Company can cancel the policy and has no obligation to provide insurance coverage. Unpaid renewal policies are cancelled at midnight on the last day of the period for which the policyholder has paid. The unearned premium liability for the cancelled policy is reversed along with the premium receivable balance. Therefore, there is no unpaid earned premium and credit loss associated with the cancelled policy However, when the 30-day grace period falls between two reporting periods, the premium receivable balance at the end of the first reporting period may potentially be overstated for not considering the policy that is subsequently cancelled during the following reporting period. To mitigate the overstatement issue, the Company estimates the monetary impact from the subsequent policy cancellation by multiplying the historical cancellation rate to the premium receivable balance at the reporting date. The premium receivable balance, together with the unearned premium liability, is then reduced by the computed amount. At December 31, 2020 and 2019, allowances for uncollectible premiums were $2,053 and $528, respectively.
Reinsurance	Reinsurance . In the normal course of business, the Company seeks to reduce the loss that may arise from catastrophes or other events by reinsuring certain levels of risk in various areas of exposure with other insurance enterprises or reinsurers. The Company contracts with a number of reinsurers to secure its annual reinsurance coverage, which generally becomes effective June 1st of each year. The Company purchases reinsurance each year taking into consideration probable maximum losses and reinsurance market conditions. Amounts recoverable from reinsurers are estimated in a manner consistent with the applicable reinsurance contract or contracts. Reinsurance premiums and reserves related to reinsured business are accounted for on a basis consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums ceded to other companies have been reported as a reduction of gross premiums earned. Prepaid reinsurance premiums represent the unexpired portion of premiums ceded to reinsurers. One of the Company’s current reinsurance contracts contains retrospective provisions including terms and conditions that adjust premiums based on the loss experience under the contracts. In such cases, a with-and-without method is used to estimate the asset or liability amount to be recognized at each reporting date. The amount of the estimate is the difference between the net contract costs before and after the loss experience under the contract. Estimates related to premium adjustments are recognized in ceded premiums earned. These estimates are reviewed monthly based on the loss experience to date and as adjustments become necessary. Such adjustments are reflected in the Company’s current operations and recorded in other assets until 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 acquisition costs and other underwriting expenses. Ceding commissions are recognized as income on a pro-rata basis over the terms of the policies reinsured, the amount of which is included in policy acquisition and other underwriting expenses in the consolidated statement of income. The unearned portion of ceding commissions that represents recovery of capitalized acquisition costs is classified as a reduction of DAC whereas the remaining unearned balance is classified as deferred revenue in other liabilities.
Premium Revenue	Premium Revenue. Premium revenue is earned on a daily pro-rata basis over the term of the policies and is included in gross premiums earned. Unearned premiums represent the portion of the premiums attributable to the unexpired policy term. The Company reviews its policy detail and establishes an allowance for any amount outstanding for more than 90 days.
Policy Fees	Policy Fees. Policy fees represent nonrefundable fees for insurance coverage, which are intended to reimburse a portion of the costs incurred to underwrite the policy. Policy fees are recognized ratably over the policy coverage period.
Insurance Guaranty Association Assessments	Insurance Guaranty Association Assessments. The Company’s insurance subsidiaries may be assessed by state associations such as the Florida Guaranty Association. The assessments are intended to be used for the payment of covered claims of insolvent insurance entities. The assessments are generally based on a percentage of premiums written during or following the year of insolvency. Liabilities are recognized when the assessments are probable to be imposed on the premiums on which they are expected to be based and the amounts can be reasonably estimated. An insurer is generally permitted to recover the entire amount of assessments from in-force and future policyholders through policy surcharges. U.S. GAAP provides that the Company should record an asset based on the amount of written or obligated-to-write premiums and limited to the amounts recoverable over the life of the in-force policies.
Foreign Currency	Foreign Currency. The functional currency of the Company’s Indian subsidiary is the U.S. dollar. As such, the monetary assets and liabilities of this subsidiary are remeasured into U.S. dollars at the exchange rate in effect on the balance sheet date. Non-monetary assets and liabilities are remeasured using historical rates. Expenses recorded in the local currency are remeasured at the prevailing exchange rate. Exchange gains and losses resulting from these remeasurements are included in other operating expenses.
Income Taxes	Income Taxes. The Company files consolidated federal and state income tax returns and allocates taxes among its wholly owned subsidiaries in accordance with a written tax-allocation agreement. The Company accounts for income taxes in accordance with U.S. GAAP, resulting in two components of income tax expense and benefit: current and deferred. Current income tax expense and benefit 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 and benefit 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 recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than fifty percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely-than-not recognition threshold considers the facts, circumstances, and information available at the reporting date and is subject to management’s judgment. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. As of December 31, 20 20 , management is not aware of any uncertain tax positions that would have a material effect on the Company’s consolidated financial statements .
Fair Value of Financial Instruments	Fair Value of Financial Instruments. The carrying amounts for the Company’s cash and cash equivalents approximate their fair values at December 31, 2020 and 2019. Fair values for securities or financial instruments are based on the framework for measuring fair value established by U.S. GAAP (see Note 7 -- “Fair Value Measurements”).
Stock-Based Compensation	Stock-Based Compensation. The Company accounts for stock-based compensation under the fair value recognition provisions of U.S. GAAP which requires the measurement and recognition of compensation for all stock-based awards made to employees and directors based on estimated fair values. In accordance with U.S. GAAP, the fair value of stock-based awards is generally recognized as compensation expense over the requisite service period, which is defined as the period during which a recipient is required to provide service in exchange for an award. Forfeitures of the Company’s stock-based awards are accounted for as they occur. The Company uses a straight-line attribution method for all grants that include only a service condition. The Company’s outstanding stock-based awards include stock options and restricted stock awards with service conditions. Compensation expense related to all awards is included in general and administrative personnel expenses. The Company receives a windfall tax benefit for certain stock option exercises and for restricted stock awards if these awards vest at a higher value than the value used to recognize compensation expense. In the event the restricted stock awards vest at a lower value than the value used to recognize compensation expense, the Company experiences a tax shortfall. The Company recognizes tax windfalls and shortfalls in the consolidated statement of income.
Basic and Diluted Earnings Per Common Share	Basic and Diluted Earnings Per Common Share. Basic earnings per common share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding for the period. U.S. GAAP requires the inclusion of restricted stock as participating securities since holders of the Company’s restricted stock have the right to share in dividends, if declared, equally with common stockholders. In addition, the intrinsic value of restricted stock declines when the Company experiences operating losses. As a result, holders of the Company’s restricted stock are allocated a proportional share of net income and loss determined by dividing total weighted-average shares of restricted stock by the sum of total weighted-average common shares and shares of restricted stock (the “two-class method”). Diluted earnings per common share reflect the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted as well as participating equities. During loss periods, common stock equivalents such as stock options and convertible debt are excluded from the calculation of diluted loss per share, as the inclusion would have an anti-dilutive effect. See Note 19 -- “Earnings Per Share” for potentially dilutive securities at December 31, 2020, 2019 and 2018.
Statutory Accounting Practices	Statutory Accounting Practices. The Company’s U.S. insurance subsidiaries comply with statutory accounting practices prescribed by the National Association of Insurance Commissioners. There are no state prescribed or permitted practices that have been adopted by the Company’s U.S. subsidiaries. In addition, the Company’s Bermuda insurance subsidiary prepares and files financial statements in accordance with the prescribed regulatory accounting practices of the Bermuda Monetary Authority.
Reclassification	Reclassification. Certain prior year amounts have been reclassified to conform to the current year presentation. ROU assets and corresponding lease liabilities - operating leases were reclassified out of other assets and other liabilities, respectively, at December 31, 2019.

Cash, Cash Equivalents, and R_2

Cash, Cash Equivalents, and Restricted Cash (Tables)	12 Months Ended
	Dec. 31, 2020
Cash And Cash Equivalents [Abstract]
Summary of Cash, Cash Equivalents, and Restricted Cash	The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Company’s consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. December 31, 2020 2019 Cash and cash equivalents $ 431,341 $ 229,218 Restricted cash 2,400 700 Total $ 433,741 $ 229,918

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2020
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 that are classified as available-for-sale. At December 31, 2020 and 2019, the cost or amortized cost, gross unrealized gains and losses, and estimated fair value of the Company’s available-for-sale securities by security type were as follows: Cost or Amortized Allowance for Gross Unrealized Gross Unrealized Estimated Fair Cost Credit Loss Gain Loss Value As of December 31, 2020 U.S. Treasury and U.S. government agencies $ 13,759 $ — $ 210 $ (1 ) $ 13,968 Corporate bonds 49,957 (579 ) 1,570 (17 ) 50,931 State, municipalities, and political subdivisions 3,023 — 60 (2 ) 3,081 Exchange-traded debt 3,491 (9 ) 230 (5 ) 3,707 Redeemable preferred stock 35 — — — 35 Total $ 70,265 $ (588 ) $ 2,070 $ (25 ) $ 71,722 As of December 31, 2019 U.S. Treasury and U.S. government agencies $ 26,220 $ 78 $ (3 ) $ 26,295 Corporate bonds 157,155 2,212 (3 ) 159,364 State, municipalities, and political subdivisions 7,763 149 — 7,912 Exchange-traded debt 8,698 462 (15 ) 9,145 Redeemable preferred stock 118 5 — 123 Total $ 199,954 $ 2,906 $ (21 ) $ 202,839
Scheduled Contractual Maturities of Fixed-Maturity Securities	The scheduled contractual maturities of fixed-maturity securities at December 31, 2020 and 2019 are as follows: December 31, 2020 2019 Cost or Estimated Cost or Estimated Amortized Fair Amortized Fair Cost Value Cost Value Available-for-sale Due in one year or less $ 21,122 $ 21,258 $ 63,135 $ 63,429 Due after one year through five years 43,561 44,339 125,833 127,660 Due after five years through ten years 2,731 3,060 6,896 7,350 Due after ten years 2,851 3,065 4,090 4,400 $ 70,265 $ 71,722 $ 199,954 $ 202,839
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 fixed-maturity securities, for the years ended December 31, 2020, 2019 and 2018 were as follows: Gross Gross Realized Realized Proceeds Gains Losses Year ended December 31, 2020 $ 81,433 $ 1,773 $ (610 ) Year ended December 31, 2019 $ 7,947 $ 221 $ (3 ) Year ended December 31, 2018 $ 81,809 $ 1,293 $ (570 )
Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category	Securities with gross unrealized loss positions at December 31, 2020 and 2019, 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, 2020 Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value U.S. Treasury and U.S. government agencies $ (1 ) $ 1,337 $ — $ — $ (1 ) $ 1,337 Corporate bonds (17 ) 3,085 — — (17 ) 3,085 States, municipalities, and political subdivisions (2 ) 1,268 — — (2 ) 1,268 Exchange-traded debt (5 ) 336 — — (5 ) 336 Total available-for-sale securities $ (25 ) $ 6,026 $ — $ — $ (25 ) $ 6,026 Less Than Twelve Months Twelve Months or Longer Total As of December 31, 2019 Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value Gross Unrealized Loss Estimated Fair Value U.S. Treasury and U.S. government agencies $ (3 ) $ 2,292 $ — $ — $ (3 ) $ 2,292 Corporate bonds (3 ) 4,597 — — (3 ) 4,597 Exchange-traded debt (15 ) 345 — — (15 ) 345 Total available-for-sale securities $ (21 ) $ 7,234 $ — $ — $ (21 ) $ 7,234
Summary of Allowance for Credit Losses of Available-for-Sale Securities	The table below summarized the activity in the allowance for credit losses of available-for-sale fixed-maturity securities for the year ended on December 31, 2020: 2020 Balance at January 1 $ — Credit loss expense 611 Reductions for securities sold (23 ) Balance at December 31 $ 588
Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value Of Equity Securities	The Company holds investments in equity securities measured at fair values which are readily determinable. At December 31, 2020 and 2019, the cost, gross unrealized gains and losses, and estimated fair value of the Company’s equity securities were as follows: Gross Unrealized Gross Unrealized Estimated Fair Cost Gain Loss Value December 31, 2020 $ 47,029 $ 4,649 $ (548 ) $ 51,130 December 31, 2019 $ 31,863 $ 3,652 $ (230 ) $ 35,285
Summary of Unrealized Gains and Losses for Equity Securities	The table below presents the portion of unrealized gains and losses in the Company’s consolidated statements of income related to equity securities still held. Years Ended December 31, 2020 2019 2018 Net gains (losses) recognized $ 435 $ 7,424 $ (4,811 ) Exclude: Net realized (losses) gains recognized for securities sold (244 ) (526 ) 5,391 Net unrealized gains (losses) recognized $ 679 $ 7,950 $ (10,202 )
Summary of Proceeds Received, Gross Realized Gains and Losses from Sales of Equity Securities	Proceeds received, and the gross realized gains and losses from sales of equity securities, for the years ended December 31, 2020, 2019 and 2018 were as follows: Gross Realized Gross Realized Proceeds Gains Losses Year ended December 31, 2020 $ 47,312 $ 2,868 $ (3,112 ) Year ended December 31, 2019 $ 37,669 $ 2,448 $ (2,974 ) Year ended December 31, 2018 $ 66,439 $ 7,324 $ (1,933 )
Schedule of Company's Investments in Limited Partnerships	The following table provides information related to the Company’s investments in limited partnerships: December 31, 2020 December 31, 2019 Carrying Unfunded Carrying Unfunded Investment Strategy Value Balance (%) (a) Value Balance (%) (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) $ 8,131 $ 2,085 15.37 $ 9,659 $ 2,085 15.37 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) 5,512 — 1.76 5,985 — 1.76 High returns and long-term capital appreciation through investments in the power, utility and energy industries, and in the infrastructure sector. (b)(f)(g) 6,513 1,401 0.18 9,188 1,391 0.18 Value-oriented investments in less liquid and mispriced senior and junior debts of private equity-backed companies. (b)(h)(i) 4,262 — 0.47 1,602 3,106 0.47 Value-oriented investments in mature real estate private equity funds and portfolios globally. (b)(j) 3,273 6,818 2.24 1,912 8,548 2.24 Total $ 27,691 $ 10,304 $ 28,346 $ 15,130 (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 ten-year (d) Expected to have a three-year (e) At the fund manager’s discretion, the term of the fund may be extended for up to two additional one-year periods. (f) Expected to have a ten-year (g) With the consent of a supermajority of partners, the term of the fund may be extended for up to three additional one-year periods. (h) Expected to have a six-year (i) The capital commitment has expired in December 2020 (j) Expected to have an eight-year
Summary of Unaudited Financial Information and Unaudited Financial Position	Years Ended December 31, 2020 2019 2018 Operating results: Total revenues $ — $ 2 $ 438 Total expenses 64 93 100 Net (loss) income $ (64 ) $ (91 ) $ 338 The Company’s share of net (loss) income* $ (57 ) $ (83 ) $ 304 * Included in net investment income in the Company’s consolidated statements of income. December 31, 2020 2019 Balance sheet: Property and equipment, net $ 705 $ 741 Cash 70 102 Other 13 4 Total assets $ 788 $ 847 Other liabilities $ 5 $ — Members’ capital 783 847 Total liabilities and members’ capital $ 788 $ 847 Investment in unconsolidated joint venture, at equity** $ 705 $ 762 * * Includes 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, 2020 and 2019: December 31, 2020 2019 Land $ 39,069 $ 39,511 Land improvements 11,917 11,907 Building 29,115 24,086 Tenant and leasehold improvements 1,487 1,487 Other 1,465 3,489 Total, at cost 83,053 80,480 Less: accumulated depreciation and amortization (8,581 ) (6,717 ) Real estate investments $ 74,472 $ 73,763
Investment (Loss) Income Summarized	Net investment income (loss), by source, is summarized as follows: Years Ended December 31, 2020 2019 2018 Available-for-sale fixed-maturity securities $ 4,252 $ 6,506 $ 5,097 Equity securities 1,388 1,333 2,131 Investment expense (497 ) (465 ) (581 ) Limited partnership investments (1,595 ) 1,176 4,430 Real estate investments (620 ) (211 ) 340 (Loss) income from unconsolidated joint venture (57 ) (83 ) 304 Cash and cash equivalents 1,691 4,970 3,485 Short-term investments 2 416 1,375 Net investment income $ 4,564 $ 13,642 $ 16,581
Limited Partnership [Member]
Summary of Unaudited Financial Information and Unaudited Financial Position	The following is the summary of aggregated 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. The financial statements of these limited partnerships are audited annually. Years Ended December 31, 2020 2019 2018 Operating results: Total income $ (1,432,907 ) $ 27,171 $ 1,821,935 Total expenses 133,281 139,252 146,079 Net (loss) income $ (1,566,188 ) $ (112,081 ) $ 1,675,856 December 31, 2020 2019 Balance sheet: Total assets $ 5,529,199 $ 6,850,913 Total liabilities $ 612,048 $ 549,562

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 Before Tax Income Tax Effect Net of Tax Unrealized gain arising during the period $ 86 $ 21 $ 65 Credit losses on investments 611 150 461 Call and repayment gains charged to investment income (374 ) (92 ) (282 ) Reclassification adjustment for realized gains (1,163 ) (285 ) (878 ) Total other comprehensive loss $ (840 ) $ (206 ) $ (634 ) Year Ended December 31, 2019 Income Tax Before Tax Effect Net of Tax Unrealized gain arising during the period $ 4,902 $ 1,219 $ 3,683 Other-than-temporary impairment loss 289 71 218 Call and repayment gains charged to investment income (141 ) (35 ) (106 ) Reclassification adjustment for realized gains (218 ) (54 ) (164 ) Total other comprehensive income $ 4,832 $ 1,201 $ 3,631 Year Ended December 31, 2018 Income Tax Before Tax Effect Net of Tax Unrealized loss arising during the period $ (3,137 ) $ (795 ) $ (2,342 ) Other-than-temporary impairment loss 80 20 60 Call and repayment losses charged to investment income (18 ) (5 ) (13 ) Reclassification adjustment for realized gains (723 ) (183 ) (540 ) Total other comprehensive loss $ (3,798 ) $ (963 ) $ (2,835 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
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 Date Valuation Methodology 4.25% Convertible Senior Notes 2037 Quoted price 3.90% Promissory Note 2032 Discounted cash flow method/Level 3 inputs 4.00% Promissory Note 2031 Discounted cash flow method/Level 3 inputs 3.75% Callable Promissory Note 2036 Discounted cash flow method/Level 3 inputs 4.55% Promissory Note 2036 Discounted cash flow method/Level 3 inputs 3.95% Promissory Note 2020 Discounted cash flow method/Level 3 inputs
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 tables indicate the fair value hierarchy of the valuation techniques utilized by the Company to determine such fair value as of December 31, 2020 and 2019: Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2020 Financial Assets: Cash and cash equivalents $ 431,341 $ — $ — $ 431,341 Restricted cash $ 2,400 $ — $ — $ 2,400 Fixed-maturity securities: U.S. Treasury and U.S. government agencies $ 11,236 $ 2,732 $ — $ 13,968 Corporate bonds 50,931 — — 50,931 States, municipalities, and political subdivisions — 3,081 — 3,081 Exchange-traded debt 3,707 — — 3,707 Redeemable preferred stock 35 — — 35 Total available-for-sale securities $ 65,909 $ 5,813 $ — $ 71,722 Equity securities $ 51,130 $ — $ — $ 51,130 Fair Value Measurements Using (Level 1) (Level 2) (Level 3) Total As of December 31, 2019 Financial Assets: Cash and cash equivalents $ 229,218 $ — $ — $ 229,218 Restricted cash $ 700 $ — $ — $ 700 Short-term investments $ 491 $ — $ — $ 491 Fixed-maturity securities: U.S. Treasury and U.S. government agencies $ 25,294 $ 1,001 $ — $ 26,295 Corporate bonds 159,364 — — 159,364 States, municipalities, and political subdivisions — 7,912 — 7,912 Exchange-traded debt 9,145 — — 9,145 Redeemable preferred stock 123 — — 123 Total available-for-sale securities $ 193,926 $ 8,913 $ — $ 202,839 Equity securities $ 35,285 $ — $ — $ 35,285
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, 2020 and 2019: Carrying Value Fair Value Measurements Using Estimated Fair Value (Level 1) (Level 2) (Level 3) As of December 31, 2020 Financial Liabilities: Revolving credit facility $ 23,750 $ — $ 23,750 $ — $ 23,750 Long-term debt: 4.25% Convertible senior notes $ 133,964 $ — $ 147,236 $ — $ 147,236 3.90% Promissory note 9,617 — — 10,044 10,044 3.75% Callable promissory note 7,502 — — 7,747 7,747 4.55% Promissory note 5,385 — — 5,809 5,809 Total long-term debt $ 156,468 $ — $ 147,236 $ 23,600 $ 170,836 Carrying Value Fair Value Measurements Using Estimated Fair Value (Level 1) (Level 2) (Level 3) As of December 31, 2019 Financial Liabilities: Revolving credit facility $ 9,750 $ — $ 9,750 $ — $ 9,750 Long-term debt: 4.25% Convertible senior notes $ 134,075 $ — $ 147,375 $ — $ 147,375 3.95% Promissory note $ 8,875 $ — $ — $ 8,887 $ 8,887 4.00% Promissory note 7,237 — — 7,409 7,409 3.75% Callable promissory note 7,837 — — 7,861 7,861 4.55% Promissory note 5,611 — — 5,802 5,802 Total long-term debt $ 163,635 $ — $ 147,375 $ 29,959 $ 177,334

Deferred Policy Acquisition C_2

Deferred Policy Acquisition Costs (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 Beginning balance $ 21,663 $ 16,507 Policy acquisition costs deferred 71,320 42,302 Amortization (49,125 ) (37,146 ) Ending balance $ 43,858 $ 21,663

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2020
Property Plant And Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consists of the following: December 31, 2020 2019 Land $ 2,134 $ 1,642 Building 3,997 8,101 Computer hardware and software 11,072 6,770 Office furniture and equipment 2,255 2,154 Tenant and leasehold improvements 620 3,388 Other 1,267 3,377 Total, at cost 21,345 25,432 Less: accumulated depreciation and amortization (8,578 ) (10,734 ) Property and equipment, net $ 12,767 $ 14,698

Intangible Assets, Net (Tables)

Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Details of Intangible Assets	The Company’s intangible assets, net consist of the following: December 31, 2020 2019 Anchor tenant relationships* $ 1,761 $ 1,761 In-place leases 4,215 4,215 Total, at cost 5,976 5,976 Less: accumulated amortization (2,408 ) (1,784 ) Intangible assets, net $ 3,568 $ 4,192 * An anchor tenant is a tenant that attracts more customers than other tenants.
Schedule of Amortization Expense for Intangible Assets	Amortization expense for intangible assets after December 31, 2020 is as follows: Year Amount 2021 $ 519 2022 445 2023 337 2024 333 2025 333 Thereafter 1,601 Total $ 3,568

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Summary of Other Assets	The following table summarizes the Company’s other assets: December 31, 2020 2019 Benefits receivable related to retrospective reinsurance contracts $ 10,920 $ 9,480 Prepaid expenses 2,365 2,107 Deposits 445 1,678 Lease acquisition costs, net 453 566 Other 8,428 2,765 Total other assets $ 22,611 $ 16,596

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Summary of Long-term Debt	The following table summarizes the Company’s long-term debt: December 31, 2020 2019 4.25% Convertible Senior Notes, due March 1, 2037 $ 139,200 $ 143,750 3.95% Promissory note, due through February 17, 2020 — 8,881 4.00% Promissory note, due through February 1, 2031 — 7,345 3.90% Promissory note, due through April 1, 2032 9,777 — 3.75% Promissory note, due through September 1, 2036 7,607 7,955 4.55% Promissory note, due through August 1, 2036 5,470 5,704 Finance lease liabilities, due through August 15, 2023 43 60 Total principal amount 162,097 173,695 Less: unamortized discount and issuance costs (5,586 ) (10,000 ) Total long-term debt $ 156,511 $ 163,695
Summary of Future Maturities of Long-Term Debt	The following table summarizes future maturities of long-term debt as of December 31, 2020, which takes into consideration the assumption that the 4.25% Convertible Senior Notes are repurchased at the earliest call date: Due in 12 months following December 31, 2020 $ 970 2021 140,207 2022 1,041 2023 1,074 2024 1,117 Thereafter 17,688 Total $ 162,097
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, 2020 2019 2018 Interest Expense: Contractual interest $ 7,083 $ 8,061 $ 10,740 Non-cash expense (a) 4,247 4,845 7,487 Capitalized interest (b) (97 ) (303 ) (131 ) Total $ 11,233 $ 12,603 $ 18,096 (a) Represents amortization of debt discount and issuance costs. (b) Interest was capitalized for construction projects.
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, 2020 2019 Principal amount $ 139,200 $ 143,750 Unamortized discount (4,083 ) (7,545 ) Liability component – net carrying value before issuance costs $ 135,117 $ 136,205 Equity component – conversion, net of offering costs $ 15,151 $ 15,151

Reinsurance (Tables)

Reinsurance (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 2018 Premiums Written: Direct $ 459,615 $ 360,525 $ 336,565 Assumed 44,539 4,430 (109 ) Gross written 504,154 364,955 336,456 Ceded (153,458 ) (125,765 ) (129,643 ) Net premiums written $ 350,696 $ 239,190 $ 206,813 Premiums Earned: Direct $ 412,999 $ 340,656 $ 340,966 Assumed 2,919 1,423 2,099 Gross earned 415,918 342,079 343,065 Ceded (153,458 ) (125,765 ) (129,643 ) Net premiums earned $ 262,460 $ 216,314 $ 213,422

Losses and Loss Adjustment Ex_2

Losses and Loss Adjustment Expenses (Tables)	12 Months Ended
	Dec. 31, 2020
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, 2020 2019 2018 Net balance, beginning of year* $ 98,174 $ 94,826 $ 97,818 Incurred, net of reinsurance, related to: Current year 158,236 96,955 96,860 Prior years 1,800 10,559 12,468 Total incurred, net of reinsurance 160,036 107,514 109,328 Paid, net of reinsurance, related to: Current year (71,772 ) (48,456 ) (54,698 ) Prior years (45,373 ) (55,710 ) (57,622 ) Total paid, net of reinsurance (117,145 ) (104,166 ) (112,320 ) Net balance, end of year 141,065 98,174 94,826 Add: reinsurance recoverable 71,104 116,523 112,760 Gross balance, end of year $ 212,169 $ 214,697 $ 207,586 * Net balance represents beginning-of-period liability for unpaid losses and LAE less beginning-of-period reinsurance recoverable for unpaid losses and LAE.
Schedule of Incurred and Paid Claims Development	The following is information about incurred and paid claims development as of December 31, 2020, net of reinsurance, as well as cumulative claim frequency and the total of incurred-but-not-reported liabilities plus expected development on reported claims included within the net incurred claims amounts. The information about incurred and paid claims development for the years ended December 31, 2015 to 2012 is presented as supplementary information and is unaudited. Homeowners Multi-peril and Dwelling Fire Insurance (a) As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2012 $ 66,425 $ 62,742 $ 64,083 $ 66,505 $ 67,058 $ 66,465 $ 67,220 $ 67,469 $ 67,869 405 6,620 2013 — 67,579 69,932 69,906 72,015 71,604 73,763 74,043 74,543 226 7,008 2014 — — 75,810 81,773 84,917 88,053 90,084 92,454 92,945 1 7,661 2015 — — — 78,017 90,902 96,173 101,272 102,149 102,587 129 7,661 2016 — — — — 81,446 90,879 92,684 92,986 92,752 1,325 6,931 2017 — — — — — 91,443 88,937 89,652 90,958 6,165 5,764 2018 — — — — — — 79,436 83,976 83,123 9,461 4,756 2019 — — — — — — — 95,467 94,018 20,026 5,314 2020 — — — — — — — — 133,908 59,502 8,008 Total $ 832,703 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2012 $ 36,914 $ 53,225 $ 59,041 $ 62,836 $ 64,667 $ 65,903 $ 67,059 $ 67,203 $ 67,430 2013 — 40,240 57,374 64,257 68,106 70,224 72,492 73,420 73,986 2014 — — 47,650 68,897 77,712 82,463 87,125 90,707 92,264 2015 — — — 50,939 76,042 87,784 95,179 99,200 101,424 2016 — — — — 51,663 73,037 83,311 89,144 90,989 2017 — — — — — 43,039 66,996 78,808 83,383 2018 — — — — — — 41,014 63,958 71,809 2019 — — — — — — — 47,471 70,182 2020 — — — — — — — — 58,396 Total $ 709,863 All outstanding liabilities before 2012, net of reinsurance 898 Liabilities for loss and LAE, net of reinsurance $ 123,738 (a) Excludes losses from Wind-only insurance (2012 through 2020) and any hurricane event prior to 2020. (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Homeowners Wind-only Insurance (a) * As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2015 $ — $ — $ — $ 308 $ 401 $ 569 $ 692 $ 605 $ 582 $ — 100 2016 — — — — 1,005 1,314 1,814 1,853 1,837 13 228 2017 — — — — — 1,529 1,119 815 792 — 156 2018 — — — — — — 798 708 1,061 249 136 2019 — — — — — — — 1,132 1,501 165 152 2020 — — — — — — — — 2,293 1,213 248 Total $ 8,066 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2015 $ — $ — $ — $ 156 $ 332 $ 465 $ 582 $ 582 $ 582 2016 — — — — 689 1,155 1,405 1,772 1,821 2017 — — — — — 484 786 789 792 2018 — — — — — — 216 607 745 2019 — — — — — — — 828 1,290 2020 — — — — — — — — 750 Total $ 5,980 Liabilities for loss and LAE, net of reinsurance $ 2,086 * The Company began writing Homeowners Wind-only insurance in 2015. (a)  Excludes losses from multi-peril and dwelling fire insurance (2012 through 2020) and any hurricane event prior to 2020. (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Losses Specific to Any Hurricane Event prior to 20 20 As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2016 $ — $ — $ — $ — $ 21,414 $ 24,126 $ 26,211 $ 28,133 $ 27,634 $ 1,179 2,420 2017 — — — — — 53,602 54,080 53,557 53,624 4,198 21,765 2018 — — — — — — 16,543 16,532 16,532 95 1,715 2019 — — — — — — — — — — 144 2020 — — — — — — — — — — 42 Total $ 97,790 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2016 $ — $ — $ — $ — $ 12,227 $ 20,025 $ 23,316 $ 25,849 $ 26,098 2017 — — — — — 43,905 47,514 47,524 49,425 2018 — — — — — — 13,391 15,992 16,436 2019 — — — — — — — — — 2020 — — — — — — — — — Total $ 91,959 Liabilities for loss and LAE, net of reinsurance $ 5,831 (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company. Losses Specific to Hurricane Sally (2020) As of December 31, 2020 Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Total of IBNR Plus Expected Development Reported Cumulative Number of Reported Claims (Not in Dollar Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 Claims Amounts)(b) 2020 $ — $ — $ — $ — $ — $ — $ — $ — $ 20,264 $ 6,716 1,685 Total $ 20,264 Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance For the Years Ended December 31, Year 2012 2013 2014 2015 2016 2017 2018 2019 2020 2020 $ — $ — $ — $ — $ — $ — $ — $ — $ 11,834 Total $ 11,834 Liabilities for loss and LAE, net of reinsurance $ 8,430 (b)  The cumulative number of reported claims is measured as the number of per-policyholder, per-event claims for all coverages regardless of whether the claim results in loss or expense to the Company.
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, 2020 2019 Net outstanding liabilities Homeowners multi-peril and dwelling fire insurance $ 123,738 $ 88,583 Homeowners Wind-only insurance 2,086 535 Losses specific to any hurricane event prior to 2020 5,831 8,857 Losses specific to Hurricane Sally (2020) 8,430 — Other short-duration insurance lines 980 199 Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance 141,065 98,174 Reinsurance recoverables 71,104 116,523 Total gross liability for unpaid losses and loss adjustment expenses $ 212,169 $ 214,697
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, 2020: Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance Years 1 2 3 4 5 6 7 8 9 Homeowners multi-peril and dwelling fire insurance 53.1 % 20.5 % 8.9 % 0.6 % 1.7 % 1.1 % 0.1 % 0.0 % 0.0 % Homeowners Wind-only insurance 38.7 % 22.3 % 6.5 % 2.0 % 0.6 % 0.0 % * * * Other short-duration insurance lines 52.4 % 15.2 % 0.2 % 0.0 % 0.0 % — — — — Losses specific to any hurricane prior to 2020 70.9 % 14.5 % 3.9 % 4.5 % 0.3 % — — — — Losses specific to Hurricane Sally (2020) 58.4 % — — — — — — — — * The Company began writing Homeowners Wind-only insurance in 2015.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2020
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. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2020 Revenue: Net premiums earned $ 262,460 $ — $ — $ — $ 262,460 Net investment income (loss) 6,655 3 (492 ) (1,602 ) 4,564 Net realized investment gains 670 — 330 — 1,000 Net unrealized investment gains 450 — 229 — 679 Credit losses on investments (591 ) — (20 ) — (611 ) Policy fee income 3,522 — — — 3,522 Gain on involuntary conversion — 36,969 — — 36,969 Other 1,067 9,502 2,831 (11,546 ) 1,854 Total revenue 274,233 46,474 2,878 (13,148 ) 310,437 Expenses: Losses and loss adjustment expenses 160,036 — — — 160,036 Amortization of deferred policy acquisition costs 49,125 — — — 49,125 Interest expense 2 1,947 10,710 (925 ) 11,734 Depreciation and amortization 115 2,526 1,706 (2,494 ) 1,853 Other 32,184 5,486 22,820 (9,729 ) 50,761 Total expenses 241,462 9,959 35,236 (13,148 ) 273,509 Income (loss) before income taxes $ 32,771 $ 36,515 $ (32,358 ) $ — $ 36,928 Total revenue from non-affiliates(c) $ 274,233 $ 44,709 $ 848 (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 of certain revenue and expenses to conform with an insurance company’s presentation. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2019 Revenue: Net premiums earned $ 216,314 $ — $ — $ — $ 216,314 Net investment income 12,230 1 2,348 (937 ) 13,642 Net realized investment gains (losses) 286 — (540 ) — (254 ) Net unrealized investment gains 6,565 — 1,385 — 7,950 Net other-than-temporary impairment losses (289 ) — — — (289 ) Policy fee income 3,229 — — — 3,229 Other 762 9,366 5,738 (13,984 ) 1,882 Total revenue 239,097 9,367 8,931 (14,921 ) 242,474 Expenses: Losses and loss adjustment expenses 107,514 — — — 107,514 Amortization of deferred policy acquisition costs 37,146 — — — 37,146 Interest expense 2 1,653 12,043 (643 ) 13,055 Depreciation and amortization 113 2,542 1,285 (2,390 ) 1,550 Other 30,590 5,168 23,246 (11,888 ) 47,116 Total expenses 175,365 9,363 36,574 (14,921 ) 206,381 Income (loss) before income taxes $ 63,732 $ 4 $ (27,643 ) $ — $ 36,093 Total revenue from non-affiliates(c) $ 239,097 $ 7,738 $ 7,176 (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 of certain revenue and expenses to conform with an insurance company’s presentation. Insurance Operations Real Estate(a) Corporate/ Other(b) Reclassification/ Elimination Consolidated For the Year Ended December 31, 2018 Revenue: Net premiums earned $ 213,422 $ — $ — $ — $ 213,422 Net investment income 10,862 1 5,554 164 16,581 Net realized investment gains 4,639 — 1,544 — 6,183 Net unrealized investment losses (8,688 ) — (1,514 ) — (10,202 ) Net other-than-temporary impairment losses — — (80 ) — (80 ) Policy fee income 3,389 — — — 3,389 Other 583 9,324 4,999 (12,907 ) 1,999 Total revenue 224,207 9,325 10,503 (12,743 ) 231,292 Expenses: Losses and loss adjustment expenses 109,328 — — — 109,328 Amortization of deferred policy acquisition costs 35,204 — — — 35,204 Interest expense 1 1,568 17,008 (481 ) 18,096 Depreciation and amortization 125 2,373 1,011 (2,140 ) 1,369 Other 25,797 4,254 20,464 (10,122 ) 40,393 Total expenses 170,455 8,195 38,483 (12,743 ) 204,390 Income (loss) before income taxes $ 53,752 $ 1,130 $ (27,980 ) $ — $ 26,902 Total revenue from non-affiliates(c) $ 224,207 $ 7,718 $ 9,331 (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 of certain revenue and expenses to conform with an insurance company’s presentation.
Summary of Segment Assets Reconciled to Consolidated Balance Sheet	December 31, 2020 2019 Segment: Insurance Operations $ 799,299 $ 663,280 Real Estate Operations 128,383 93,727 Corporate and Other 38,548 60,662 Consolidation and Elimination (24,917 ) (15,060 ) Total assets $ 941,313 $ 802,609

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Leases [Abstract]
Disclosure of right-of-use assets and liabilities for operating and finance leases	The table below summarizes the Company’s ROU assets and corresponding liabilities for operating and finance leases: December 31 2020 2019 Operating leases: ROU assets $ 4,002 $ 484 Liabilities $ 4,014 $ 513 Finance leases: ROU assets $ 79 $ 79 Liabilities $ 43 $ 60
Disclosure of operating and finance leases of lessee	The following table summarizes the Company’s operating and finance leases in which the Company is a lessee: Renewal Other Terms and Class of Assets Initial Term Option Conditions Operating lease: Office equipment 1 to 63 months Yes (a), (b) Office space 3 to 10 years Yes (b), (c) Finance lease: Office equipment 3 to 5 years Not applicable (d) (a) At the end of the lease term, the Company can purchase the equipment at fair market value. (b) There are no variable lease payments. (c) Rent escalation provisions exist. (d) There is a bargain purchase option.
Disclosure of lease liabilities maturities	As of December 31, 2020, maturities of lease liabilities were as follows: Leases Operating Finance Due in Year 2021 $ 1,724 $ 19 2022 1,536 17 2023 887 9 Total lease payments 4,147 45 Less: interest and foreign taxes 133 2 Total lease obligations $ 4,014 $ 43
Disclosure of quantitative information of operating and finance leases	The following table provides quantitative information with regard to the Company’s operating and finance leases: Years Ended December 31, 2020 2019 Lease costs: Finance lease costs: Amortization – ROU assets* $ 18 $ 15 Interest expense 2 2 Operating lease costs* 1,123 314 Short-term lease costs* 167 198 Total lease costs $ 1,310 $ 529 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows – finance leases $ 2 $ 2 Operating cash flows – operating leases $ 1,132 $ 318 Financing cash flows – finance leases $ 17 $ 14 December 31, 2020 Weighted-average remaining lease term: Finance leases (in years) 2.7 Operating leases (in years) 2.8 Weighted-average discount rate: Finance leases 3.7 % Operating leases 2.8 % * Included in other operating expenses on the consolidated statements of income.
Disclosure of operating leases of lessor entity	The following table summarizes the Company’s operating leases in which the Company is a lessor: Renewal Other Terms and Class of Assets Initial Term Option Conditions Operating lease: Office space 1 to 3 years Yes (e) Retail space 3 to 20 years Yes (e) Boat docks/wet slips 1 to 12 months Yes (e) (e) There are no purchase options.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Summary of Income Tax Expense	A summary of income tax expense is as follows: Years Ended December 31, 2020 2019 2018 Current: Federal $ 1,089 $ 6,177 $ 7,443 State 30 1,362 1,490 Foreign 106 107 104 Total current taxes 1,225 7,646 9,037 Deferred: Federal 6,694 1,586 (245 ) State 1,436 287 392 Foreign (7 ) (2 ) (7 ) Total deferred taxes 8,123 1,871 140 Income tax expense $ 9,348 $ 9,517 $ 9,177
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, 2020 2019 2018 Amount % Amount % Amount % Income taxes at statutory rate $ 7,755 21.0 $ 7,579 21.0 $ 5,649 21.0 Increase (decrease) in income taxes resulting from: State income taxes, net of federal tax benefits 1,364 3.7 1,362 3.8 1,303 4.8 Effects of tax rate changes — — (37 ) — — — Stock-based compensation (296 ) (0.8 ) (159 ) (0.4 ) 2,156 8.0 Non-deductible executive compensation 757 2.0 685 1.9 306 1.1 Other (232 ) (0.6 ) 87 0.1 (237 ) (0.8 ) Income tax expense $ 9,348 25.3 $ 9,517 26.4 $ 9,177 34.1
Significant Components of Net Deferred Income Tax Liabilities	Significant components of the Company’s net deferred income tax liabilities are as follows: December 31, 2020 2019 Deferred tax assets: Unearned premiums $ 9,687 $ 6,272 Losses and loss adjustment expenses 2,902 2,838 Stock-based compensation 1,084 878 Unearned revenue 335 120 Accrued expenses 146 86 Credit losses 120 77 Organizational costs 76 63 Bad debt reserve 52 9 Total deferred tax assets 14,402 10,343 Deferred tax liabilities: Gain on involuntary conversion (9,066 ) — Deferred policy acquisition costs (9,459 ) (5,469 ) Intangible assets (2,226 ) (2,214 ) Basis difference related to partnership investments (1,578 ) (1,188 ) Prepaid expenses (454 ) (392 ) Net unrealized investment gains (1,507 ) (1,547 ) Property and equipment (1,262 ) (1,661 ) Basis difference related to convertible senior notes (242 ) (1,256 ) Other (533 ) (624 ) Total deferred tax liabilities (26,327 ) (14,351 ) Net deferred tax liabilities $ (11,925 ) $ (4,008 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Summary of Numerator and Denominator of Basic and Diluted Earnings (loss) Per Common Share	A summary of the numerator and denominator of the basic and fully diluted earnings (loss) per common share is presented below: Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2020 Net income $ 27,580 Less: Income attributable to participating securities (1,462 ) Basic Earnings Per Share: Income allocated to common stockholders 26,118 7,351 $ 3.55 Effect of Dilutive Securities: Stock options — 23 Convertible senior notes 7,705 2,320 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 33,823 9,694 $ 3.49 (a) Shares in thousands. Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2019 Net income $ 26,576 Less: Income attributable to participating securities (1,448 ) Basic Earnings Per Share: Income allocated to common stockholders 25,128 7,580 $ 3.32 Effect of Dilutive Securities: Stock options — 12 Convertible senior notes 8,748 2,646 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 33,876 10,238 $ 3.31 (a) Shares in thousands. Income (Numerator) Shares (a) (Denominator) Per Share Amount Year Ended December 31, 2018 Net income $ 17,725 Less: Loss attributable to participating securities* 717 Basic Earnings Per Share: Income allocated to common stockholders 18,442 7,878 $ 2.34 Effect of Dilutive Securities:** Stock options — 17 Diluted Earnings Per Share: Income available to common stockholders and assumed conversions $ 18,442 7,895 $ 2.34 (a) Shares in thousands. * Loss attributable to participating securities included the reclassification of cumulative dividends paid on certain restricted stock with market based vesting conditions from retained income to expense. See Restricted Stock Awards in Note 21 -- “Stock-Based Compensation” for additional information. ** Convertible senior notes were excluded due to antidilutive effect.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Company's Stock Option Plan Activity	A summary of the stock option activity for the years ended December 31, 2020, 2019 and 2018 is as follows (option amounts not in thousands): Number of Options Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Outstanding at January 1, 2018 130,000 $ 34.82 8.2 years $ 472 Granted 110,000 $ 40.00 Outstanding at December 31, 2018 240,000 $ 37.19 8.8 years $ 3,278 Granted 110,000 $ 53.00 Exercised (10,000 ) $ 6.30 Outstanding at December 31, 2019 340,000 $ 43.21 7.9 years $ 1,657 Granted 110,000 $ 48.00 Exercised (10,000 ) $ 6.30 Outstanding at December 31, 2020 440,000 $ 45.25 7.6 years $ 3,113 Exercisable at December 31, 2020 165,000 $ 42.17 6.7 years $ 1,664
Information about Options Exercised	The following table summarizes information about options exercised for the years ended December 31, 2020, 2019 and 2018 (option amounts not in thousands): 2020 2019 2018 Options exercised 10,000 10,000 — Total intrinsic value of exercised options $ 288 $ 347 $ — Tax benefits realized $ 71 $ 85 $ —
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 years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Expected dividend yield 3.48 % 3.34 % 4.00 % Expected volatility 38.68 % 40.17 % 42.22 % Risk-free interest rate 1.63 % 2.53 % 2.57 % Expected life (in years) 5 5 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, 2020, 2019 and 2018 is as follows: Number of Restricted Stock Awards Weighted Average Grant Date Fair Value Nonvested at January 1, 2018 597,690 $ 32.82 Granted 189,860 $ 41.81 Vested (98,617 ) $ 40.82 Forfeited (56,637 ) $ 36.46 Nonvested at December 31, 2018 632,296 $ 33.33 Granted 180,404 $ 42.79 Vested (116,164 ) $ 40.10 Forfeited (299,776 ) $ 25.31 Nonvested at December 31, 2019 396,760 $ 41.71 Granted 192,680 $ 45.57 Vested (146,801 ) $ 40.54 Forfeited (18,852 ) $ 43.60 Nonvested at December 31, 2020 423,787 $ 43.79
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, 2020, 2019 and 2018. 2020 2019 2018 Deferred tax benefits recognized $ 1,296 $ 1,075 $ 862 Tax benefits realized for restricted stock and paid dividends $ 1,448 $ 1,129 $ 1,086 Fair value of vested restricted stock $ 5,952 $ 4,658 $ 4,025

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Rental Income Due Under Non-Cancellable Operating Leases	Expected annual rental income due under non-cancellable operating leases for all properties owned at December 31, 2020 is as follows: Year Amount 2021 $ 3,706 2022 3,537 2023 3,428 2024 3,414 2025 3,335 Thereafter 13,710 Total $ 31,130

Quarterly Results of Operatio_2

Quarterly Results of Operations (Tables)	12 Months Ended
	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Summary of Unaudited Quarterly Results of Operations	The tables below summarize unaudited quarterly results of operations for 2020, 2019 and 2018. Three Months Ended 03/31/20 06/30/20 09/30/20 12/31/20 Net premiums earned $ 61,646 $ 73,449 $ 62,463 $ 64,902 Total revenue 55,380 80,717 104,027 70,313 Losses and loss adjustment expenses 28,078 39,843 51,743 40,372 Policy acquisition and other underwriting expenses 11,826 12,991 14,210 14,832 Interest expense 2,970 3,020 2,856 2,888 Total expenses 54,723 68,894 82,491 67,401 Income before income taxes 657 11,823 21,536 2,912 Net income 547 8,936 15,390 2,707 Comprehensive (loss) income (1,585 ) 10,286 15,634 2,611 Earnings per share: Basic $ 0.07 $ 1.16 $ 1.97 $ 0.35 Diluted* $ 0.07 $ 1.08 $ 1.68 $ 0.35 * During the quarters ended March 31, 2020 and December 31, 2020, the convertible senior notes were antidilutive. Three Months Ended 03/31/19 06/30/19 09/30/19 12/31/19 Net premiums earned $ 51,184 $ 51,998 $ 54,434 $ 58,698 Total revenue 60,634 58,630 59,979 63,231 Losses and loss adjustment expenses 26,996 24,293 27,327 28,898 Policy acquisition and other underwriting expenses 9,673 10,077 10,988 11,759 Interest expense 4,337 2,884 2,907 2,927 Total expenses 51,351 48,315 52,260 54,455 Income before income taxes 9,283 10,315 7,719 8,776 Net income 6,738 7,553 5,853 6,432 Comprehensive income 8,732 8,767 6,189 6,519 Earnings per share: Basic $ 0.82 $ 0.93 $ 0.73 $ 0.84 Diluted** $ 0.82 $ 0.90 $ 0.73 $ 0.82 * * During the quarters ended March 31, 2019 and September 30, 2019, the convertible senior notes were antidilutive. Three Months Ended 03/31/18 06/30/18 09/30/18 12/31/18 Net premiums earned $ 53,522 $ 52,965 $ 54,177 $ 52,758 Total revenue 57,739 58,813 61,743 52,997 Losses and loss adjustment expenses 19,655 21,803 25,769 42,101 Policy acquisition and other underwriting expenses 9,360 9,959 9,829 9,795 Interest expense 4,470 4,505 4,552 4,569 Total expenses 42,935 47,293 49,820 64,342 Income (loss) before income taxes 14,804 11,520 11,923 (11,345 ) Net income (loss) 10,791 6,403 8,997 (8,466 ) Comprehensive income (loss) 8,340 6,413 8,955 (8,818 ) Earnings (loss) per share: Basic $ 1.25 $ 0.96 $ 1.08 $ (0.95 ) Diluted*** $ 1.11 $ 0.92 $ 1.00 $ (0.95 ) * ** During the quarter ended December 31, 2018, the convertible senior notes and stock options were antidilutive.

Regulatory Requirements and R_2

Regulatory Requirements and Restrictions (Tables)	12 Months Ended
	Dec. 31, 2020
Regulatory Requirements And Restrictions [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, 2020 2019 2018 HCPCI: Gross 3.02 to 1 1.92 to 1 2.17 to 1 Net 1.84 to 1 1.15 to 1 1.27 to 1 TypTap: Gross 2.47 to 1 2.23 to 1 0.57 to 1 Net 1.50 to 1 1.63 to 1 0.38 to 1

Condensed Financial Informati_2

Condensed Financial Information of HCI Group, Inc. (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]
Balance Sheets	Balance Sheets December 31, 2020 2019 Assets Cash and cash equivalents $ 13,944 $ 17,738 Fixed-maturity securities, available for sale, at fair value 216 745 Equity securities, at fair value 9,496 6,689 Limited partnership investments, at equity 20,542 21,405 Note receivable – related party 23,280 1,280 Investment in subsidiaries 304,816 290,675 Property and equipment, net 753 345 Right-of-use assets - operating leases 7,118 2,023 Income tax receivable 8,348 — Other assets 4,036 2,443 Total assets $ 392,549 $ 343,343 Liabilities and Stockholders’ Equity Accrued expenses and other liabilities $ 6,660 $ 5,813 Lease liabilities - operating leases 4,319 713 Income tax payable — 1,443 Deferred income taxes, net 1,645 2,587 Revolving credit facility 23,750 9,750 Long-term debt 133,967 134,080 Due to related parties 21,072 3,414 Total liabilities 191,413 157,800 Total stockholders’ equity 201,136 185,543 Total liabilities and stockholders’ equity $ 392,549 $ 343,343
Statements of Income	Statements of Income Years Ended December 31, 2020 2019 2018 Net investment (loss) income $ (676 ) $ 2,295 $ 5,348 Net realized investment gains (losses) 330 (541 ) 1,544 Net unrealized investment gains (losses) 229 1,385 (1,514 ) Net other-than-temporary impairment losses — — (80 ) Credit losses on investments (20 ) — — Loss on repurchases of convertible senior notes (150 ) — — Interest expense (10,710 ) (12,042 ) (17,007 ) Operating expenses (6,887 ) (6,353 ) (5,429 ) Loss before income tax benefit and equity in income of subsidiaries (17,884 ) (15,256 ) (17,138 ) Income tax benefit 4,024 3,092 1,856 Net loss before equity in income of subsidiaries (13,860 ) (12,164 ) (15,282 ) Equity in income of subsidiaries 41,440 38,740 33,007 Net income $ 27,580 $ 26,576 $ 17,725
Statements of Cash Flows	Statements of Cash Flows Years Ended December 31, 2020 2019 2018 Cash flows from operating activities: Net income $ 27,580 $ 26,576 $ 17,725 Adjustments to reconcile net income to net cash used in operating activities: Stock-based compensation 4,488 3,638 2,550 Net realized investment (gains) losses (330 ) 541 (1,544 ) Net unrealized investment (gains) losses (229 ) (1,385 ) 1,514 Net (accretion of discount) amortization of premiums on investments in fixed-maturity securities (42 ) 66 (3 ) Depreciation and amortization 4,686 5,194 7,737 Net income from limited partnership investments 1,781 (701 ) (3,007 ) Distributions from limited partnership interests 844 1,661 1,495 Other-than-temporary impairment losses — — 80 Credit losses on investments 20 — — Loss on repurchases of convertible senior notes 150 — — Equity in income of subsidiaries (41,440 ) (38,740 ) (33,007 ) Deferred income taxes (935 ) (916 ) 1,075 Changes in operating assets and liabilities: Income taxes (9,791 ) 4,462 4 Other assets (629 ) (3,042 ) (144 ) Accrued expenses and other liabilities 1,096 1,750 273 Due to related parties 17,438 (16,754 ) (2,600 ) Net cash provided by (used in) operating activities 4,687 (17,650 ) (7,852 ) Cash flows from investing activities: Investment in limited partnership interest (3,376 ) (1,602 ) (5,125 ) Investment in note receivable – related party (22,000 ) — — Purchase of fixed-maturity securities (7 ) (234 ) (5,864 ) Purchase of equity securities (35,855 ) (8,733 ) (16,913 ) Purchase of short-term and other investments (200 ) (187 ) (50,510 ) Purchase of property and equipment (742 ) (176 ) (154 ) Proceeds from sales of fixed-maturity securities 447 477 2,215 Proceeds from calls, repayments and maturities of fixed-maturity securities 27 35,361 — Proceeds from sales of equity securities 30,688 9,906 20,698 Proceeds from sales, redemptions and maturities of short-term and other investments 537 25,733 25,401 Collection of note receivable – related party — — 6,000 Distributions from limited partnership interests 1,614 948 158 Dividends received from subsidiary 52,500 44,000 42,000 Return of capital from subsidiary 9 6,000 10,000 Investment in subsidiaries (22,629 ) (5,000 ) — Net cash provided by investing activities 1,013 106,493 27,906 (continued) Years Ended December 31, 2020 2019 2018 Cash flows from financing activities: Repurchases of common stock (1,547 ) (1,203 ) (1,151 ) Repurchases of common stock under share repurchase plan (5,161 ) (18,851 ) (20,015 ) Repurchases of convertible senior notes (4,459 ) — — Debt issuance costs paid — (459 ) — Cash dividends paid to stockholders (12,694 ) (13,012 ) (11,318 ) Cash dividends received under share repurchase forward contract 306 306 967 Net borrowing under revolving credit facility 14,000 9,750 — Proceeds from exercise of stock options 63 63 — Repayment of long-term debt (2 ) (89,991 ) — Net cash used in financing activities (9,494 ) (113,397 ) (31,517 ) Net decrease in cash and cash equivalents (3,794 ) (24,554 ) (11,463 ) Cash and cash equivalents at beginning of year 17,738 42,292 53,755 Cash and cash equivalents at end of year $ 13,944 $ 17,738 $ 42,292

Nature of Operations - Addition

Nature of Operations - Additional Information (Detail) $ in Thousands	1 Months Ended
	Dec. 31, 2020USD ($)	Oct. 31, 2020State	Apr. 01, 2020Policy
United [Member]
Nature Of Operations [Line Items]
Quota share reinsurance percentage	69.50%
Allowance paid for policy acquisition | $	$ 4,400
Deferred policy acquisition costs, percentage of provisional ceding commission of premium	25.00%
Percentage of maximum potential acquisition costs in reinsured business	31.50%
Approximate annual premiums from assumed business | $	$ 125,000
TypTap [Member]
Nature Of Operations [Line Items]
Number of states applied for homeowners coverage license | State		23
Number of states approval received for homeowners coverage license | State		10
HCPCI [Member] | Anchor [Member] | Policy Replacement Agreement [Member]
Nature Of Operations [Line Items]
Number of replacement policies issued | Policy			40,000

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2020
Summary Of Significant Accounting Policies [Line Items]
Retained income	$ 199,592	$ 183,365
Minimum ownership interest percentage for limited partnerships accounted investments for using equity method	5.00%
Unpaid earned premium and credit loss	$ 0
Allowance for uncollectible premiums	$ 2,053	$ 528
Period for establishing allowance on insurance premiums receivable		90 days
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
Capitalized Software Cost [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%
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership interest to estimate net asset value method	5.00%
Operating lease term	10 years
Maximum [Member] | Furniture and Office Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	7 years
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Operating lease term	1 month
Minimum [Member] | Furniture and Office Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful lives of Property and Equipment	3 years
Allowance for Credit Losses [Member] | Reinsurance Recoverable [Member] | ASU 2016-13 [Member]
Summary Of Significant Accounting Policies [Line Items]
Retained income			$ 453

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements - Additional Information (Detail) - Accounting Standards Update Early Adoption [Member] - ASU 2020-06 [Member] - Forecast [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Change In Accounting Estimate [Line Items]
Increase in long-term debt	$ 4,000
Decrease in retained income	3,019
Decrease in deferred income tax liabilities	$ 981

Cash, Cash Equivalents, and R_3

Cash, Cash Equivalents, and Restricted Cash - Summary of Cash, Cash Equivalents, and Restricted Cash (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 431,341	$ 229,218
Restricted cash	2,400	700
Total	$ 433,741	$ 229,918

Cash, Cash Equivalents, and R_4

Cash, Cash Equivalents, and Restricted Cash - Additional Information (Detail) $ in Thousands	Dec. 31, 2020USD ($)BankAccount	Dec. 31, 2019USD ($)BankAccount
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 431,341	$ 229,218
Deposits representing cash and cash equivalents in percentage	73.60%	55.10%
Number of national banks | Bank	6	3
Number of custodial accounts | Account	2	2
Federal Deposit Insurance Corporation's coverage limit for insured deposit accounts	$ 250	$ 250
Custodial Accounts [Member]
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	141,481	12,188
Bank Deposits [Member]
Cash And Cash Equivalents [Line Items]
Cash and cash equivalents	$ 317,420	$ 126,347

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, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	$ 70,265	$ 199,954
Allowance for Credit Loss	(588)	0
Fixed-maturity securities, Gross Unrealized Gain	2,070	2,906
Fixed-maturity securities, Gross Unrealized Loss	(25)	(21)
Fixed-maturity securities, Estimated Fair Value	71,722	202,839
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	13,759	26,220
Fixed-maturity securities, Gross Unrealized Gain	210	78
Fixed-maturity securities, Gross Unrealized Loss	(1)	(3)
Fixed-maturity securities, Estimated Fair Value	13,968	26,295
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	49,957	157,155
Allowance for Credit Loss	(579)
Fixed-maturity securities, Gross Unrealized Gain	1,570	2,212
Fixed-maturity securities, Gross Unrealized Loss	(17)	(3)
Fixed-maturity securities, Estimated Fair Value	50,931	159,364
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	3,023	7,763
Fixed-maturity securities, Gross Unrealized Gain	60	149
Fixed-maturity securities, Gross Unrealized Loss	(2)
Fixed-maturity securities, Estimated Fair Value	3,081	7,912
Fixed-Maturity Securities [Member] | Exchange-Traded Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	3,491	8,698
Allowance for Credit Loss	(9)
Fixed-maturity securities, Gross Unrealized Gain	230	462
Fixed-maturity securities, Gross Unrealized Loss	(5)	(15)
Fixed-maturity securities, Estimated Fair Value	3,707	9,145
Fixed-Maturity Securities [Member] | Redeemable Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Fixed-maturity securities, Cost or Amortized Cost	35	118
Fixed-maturity securities, Gross Unrealized Gain		5
Fixed-maturity securities, Estimated Fair Value	$ 35	$ 123

Investments - Scheduled Contrac

Investments - Scheduled Contractual Maturities of Fixed-Maturity Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Due in one year or less, Cost or Amortized Cost	$ 21,122	$ 63,135
Due after one year through five years, Cost or Amortized Cost	43,561	125,833
Due after five years through ten years, Cost or Amortized Cost	2,731	6,896
Due after ten years, Cost or Amortized Cost	2,851	4,090
Fixed-maturity securities, Cost or Amortized Cost	70,265	199,954
Due in one year or less, Estimated Fair Value	21,258	63,429
Due after one year through five years, Estimated Fair Value	44,339	127,660
Due after five years through ten years, Estimated Fair Value	3,060	7,350
Due after ten years, Estimated Fair Value	3,065	4,400
Estimated Fair Value Total	$ 71,722	$ 202,839

Investments - Summary of Sales

Investments - Summary of Sales of Available-for-sale Fixed-Maturity Securities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Proceeds	$ 81,433	$ 7,947	$ 81,809
Fixed-Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Proceeds	81,433	7,947	81,809
Gross Realized Gains	1,773	221	1,293
Gross Realized Losses	$ (610)	$ (3)	$ (570)

Investments - Summary of Securi

Investments - Summary of Securities with Gross Unrealized Loss Positions Aggregated by Investment Category (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	$ (25)	$ (21)
Estimated Fair Value, Less than Twelve Months	6,026	7,234
Gross Unrealized Loss, Twelve Months or Longer	0	0
Estimated Fair Value, Twelve Months or Longer	0	0
Gross Unrealized Loss, Total	(25)	(21)
Estimated Fair Value, Total	6,026	7,234
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	(1)	(3)
Estimated Fair Value, Less than Twelve Months	1,337	2,292
Gross Unrealized Loss, Twelve Months or Longer	0	0
Estimated Fair Value, Twelve Months or Longer	0	0
Gross Unrealized Loss, Total	(1)	(3)
Estimated Fair Value, Total	1,337	2,292
Fixed-Maturity Securities [Member] | Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(17)	(3)
Estimated Fair Value, Less than Twelve Months	3,085	4,597
Gross Unrealized Loss, Twelve Months or Longer	0	0
Estimated Fair Value, Twelve Months or Longer	0	0
Gross Unrealized Loss, Total	(17)	(3)
Estimated Fair Value, Total	3,085	4,597
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	(2)
Estimated Fair Value, Less than Twelve Months	1,268
Gross Unrealized Loss, Twelve Months or Longer	0
Estimated Fair Value, Twelve Months or Longer	0
Gross Unrealized Loss, Total	(2)
Estimated Fair Value, Total	1,268
Fixed-Maturity Securities [Member] | Exchange-Traded Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss, Less than Twelve Months	(5)	(15)
Estimated Fair Value, Less than Twelve Months	336	345
Gross Unrealized Loss, Twelve Months or Longer	0	0
Estimated Fair Value, Twelve Months or Longer	0	0
Gross Unrealized Loss, Total	(5)	(15)
Estimated Fair Value, Total	$ 336	$ 345

Investments (Other-than-tempora

Investments (Other-than-temporary Impairment) - Additional Information (Detail) - Security	Dec. 31, 2020	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Number of securities in an unrealized loss position	12	8

Investments - Summary of Allowa

Investments - Summary of Allowance for Credit Losses of Available-for-Sale Securities (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Investments Debt And Equity Securities [Abstract]
Beginning Balance	$ 0
Credit loss expense	611
Reductions for securities sold	(23)
Ending Balance	$ 588

Investments (Allowance for Cred

Investments (Allowance for Credit Losses of Available-for-Sale Fixed-Maturity Securities) - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)Security	Dec. 31, 2019USD ($)Security	Dec. 31, 2018USD ($)Security
Schedule Of Investments [Line Items]
Credit loss expense	$ 611
Other-than-temporary impairment losses		$ 289	$ 80
Fixed-Maturity Securities [Member]
Schedule Of Investments [Line Items]
Credit loss expense	$ 611
Credit loss expense, number of securities | Security	2
Other-than-temporary impairment losses		$ 289	$ 80
Other-than-temporary impairment losses, number of securities | Security		1	1
Cumulative credit loss balances		$ 289	$ 0

Investments - Summary of Amor_2

Investments - Summary of Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Value of Equity Securities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Cost	$ 47,029	$ 31,863
Gross Unrealized Gain	4,649	3,652
Gross Unrealized Loss	(548)	(230)
Estimated Fair Value	$ 51,130	$ 35,285

Investments - Summary of Unreal

Investments - Summary of Unrealized Gains and Losses in Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gain (Loss) on Securities [Line Items]
Net unrealized gains (losses) recognized	$ 679	$ 7,950	$ (10,202)
Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Net gains (losses) recognized	435	7,424	(4,811)
Exclude: Net realized (losses) gains recognized for securities sold	(244)	(526)	5,391
Net unrealized gains (losses) recognized	$ 679	$ 7,950	$ (10,202)

Investments - Summary of Procee

Investments - Summary of Proceeds Received and The Gross Realized Gains and Losses From Sales of Equity Securities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt and Equity Securities, FV-NI [Line Items]
Proceeds	$ 47,312	$ 37,669	$ 66,439
Equity Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Proceeds	47,312	37,669	66,439
Gross Realized Gains	2,868	2,448	7,324
Gross Realized Losses	$ (3,112)	$ (2,974)	$ (1,933)

Investments - Schedule of Compa

Investments - Schedule of Company's Investments in Limited Partnerships (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Investment Securities [Line Items]
Carrying Value	$ 27,691	$ 28,346
Unfunded Balance	10,304	15,130
Private US Lower Middle Market Companies [Member]
Investment Securities [Line Items]
Carrying Value	8,131	9,659
Unfunded Balance	$ 2,085	$ 2,085
Percentage investment held by the entity	15.37%	15.37%
Bank Loans Public and Private Corporate Bonds Asset Backed Securities Equity and Debt Restructuring [Member]
Investment Securities [Line Items]
Carrying Value	$ 5,512	$ 5,985
Percentage investment held by the entity	1.76%	1.76%
Power Utility and Energy Industries and Infrastructure [Member]
Investment Securities [Line Items]
Carrying Value	$ 6,513	$ 9,188
Unfunded Balance	$ 1,401	$ 1,391
Percentage investment held by the entity	0.18%	0.18%
Senior and Junior Debts of Private Equity-Backed Companies [Member]
Investment Securities [Line Items]
Carrying Value	$ 4,262	$ 1,602
Unfunded Balance		$ 3,106
Percentage investment held by the entity	0.47%	0.47%
Mature Real Estate Private Equity Funds And Portfolio Globally [Member]
Investment Securities [Line Items]
Carrying Value	$ 3,273	$ 1,912
Unfunded Balance	$ 6,818	$ 8,548
Percentage investment held by the entity	2.24%	2.24%

Investments - Schedule of Com_2

Investments - Schedule of Company's Investments in Limited Partnerships (Parenthetical) (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Schedule Of Investments [Line Items]
Additional funding circumstances	$ 843
Private US Lower Middle Market Companies [Member]
Schedule Of Investments [Line Items]
Expected term	10 years
Investment additional maturity term	2 years
Bank Loans Public and Private Corporate Bonds Asset Backed Securities Equity and Debt Restructuring [Member]
Schedule Of Investments [Line Items]
Expected term	3 years
Investment additional maturity term	2 years
Power Utility and Energy Industries and Infrastructure [Member]
Schedule Of Investments [Line Items]
Expected term	10 years
Investment additional maturity term	3 years
Senior and Junior Debts of Private Equity-Backed Companies [Member]
Schedule Of Investments [Line Items]
Expected term	6 years
Investment additional maturity term	2 years
Expiration date of capital commitment	Dec. 31, 2020
Mature Real Estate Private Equity Funds And Portfolio Globally [Member]
Schedule Of Investments [Line Items]
Expected term	8 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, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]
Total income	$ 70,313	$ 104,027	$ 80,717	$ 55,380	$ 63,231	$ 59,979	$ 58,630	$ 60,634	$ 52,997	$ 61,743	$ 58,813	$ 57,739	$ 310,437	$ 242,474	$ 231,292
Net (loss) income													27,580	26,576	17,725
Balance sheet:
Total assets	941,313				802,609								941,313	802,609
Total liabilities	740,177				617,066								740,177	617,066
Limited Partnership [Member]
Schedule Of Equity Method Investments [Line Items]
Total income													(1,432,907)	27,171	1,821,935
Total expenses													133,281	139,252	146,079
Net (loss) income													(1,566,188)	(112,081)	$ 1,675,856
Balance sheet:
Total assets	5,529,199				6,850,913								5,529,199	6,850,913
Total liabilities	$ 612,048				$ 549,562								$ 612,048	$ 549,562

Investments (Limited Partnershi

Investments (Limited Partnership Investments) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Investments [Line Items]
Recognized investment income (loss)	$ (1,595)	$ 1,176	$ 4,430
Maximum exposure loss relating to VIE	705	762
Distributions received from limited partnership interests	1,215	4,176	2,345
Limited Partnership [Member]
Schedule Of Investments [Line Items]
Company's net cumulative contributed capital to the partnership	29,272	27,117
Maximum exposure loss relating to VIE	27,691	28,346
Cash distributions			2,503
Distributions received from limited partnership interests	1,215	4,176	2,345
Return of capital	$ 2,086	$ 2,121	$ 158

Investments (Investment in Unco

Investments (Investment in Unconsolidated Joint Venture) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Investments [Line Items]
Maximum exposure loss relating to VIE	$ 705	$ 762
Undistributed gain (loss) after equity distribution	0	0	$ 0
Earnings distribution			68
Capital distribution			695
FMKT Mel JV, LLC [Member]
Schedule Of Investments [Line Items]
Cash distribution	$ 0	$ 0	763
Earnings distribution			68
Capital distribution			$ 695

Investments - Summary of Unau_2

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, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating results:
Total revenues	$ 70,313	$ 104,027	$ 80,717	$ 55,380	$ 63,231	$ 59,979	$ 58,630	$ 60,634	$ 52,997	$ 61,743	$ 58,813	$ 57,739	$ 310,437	$ 242,474	$ 231,292
Net (loss) income													27,580	26,576	17,725
The Company’s share of net (loss) income*													(57)	(83)	304
Balance sheet:
Other	22,611				16,596								22,611	16,596
Total assets	941,313				802,609								941,313	802,609
Other liabilities	40,771				27,516								40,771	27,516
Total liabilities and stockholders’ equity	941,313				802,609								941,313	802,609
Investment in unconsolidated joint venture, at equity	705				762								705	762
Unconsolidated Joint Venture [Member]
Balance sheet:
Property and equipment, net	705				741								705	741
Cash	70				102								70	102
Other	13				4								13	4
Total assets	788				847								788	847
Other liabilities	5												5
Members’ capital	783				847								783	847
Total liabilities and stockholders’ equity	$ 788				$ 847								788	847
FMKT Mel JV, LLC [Member] | Operating Expense [Member]
Operating results:
The Company’s share of net (loss) income*													(57)	(83)	304
FMKT Mel JV, LLC [Member] | Unconsolidated Joint Venture [Member]
Operating results:
Total revenues														2	438
Total expenses													64	93	100
Net (loss) income													$ (64)	$ (91)	$ 338

Investments - Summary of Unau_3

Investments - Summary of Unaudited Financial Information and Unaudited Financial Position of Joint Venture (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2020
Unconsolidated Joint Venture [Member]
Variable Interest Entity [Line Items]
Percentage of operating results	90.00%

Investments (Assets Held for Sa

Investments (Assets Held for Sale) - Additional Information (Detail) - USD ($) $ in Thousands	Apr. 09, 2020	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Investments [Line Items]
Real estate investments		$ 74,472	$ 73,763
Investment Property [Member]
Schedule Of Investments [Line Items]
Real estate investments		4,748
Real estate investments, additional improvement costs		229
Real estate investments, depreciation expense		$ 68
Investment Property [Member]
Schedule Of Investments [Line Items]
Assets held for sale	$ 4,519
Assets held for sale, impairment loss	$ 0

Investments - Summary of Real E

Investments - Summary of Real Estate Investment (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Real Estate [Abstract]
Land	$ 39,069	$ 39,511
Land improvements	11,917	11,907
Building	29,115	24,086
Tenant and leasehold improvements	1,487	1,487
Other	1,465	3,489
Total, at cost	83,053	80,480
Less: accumulated depreciation and amortization	(8,581)	(6,717)
Real estate investments	$ 74,472	$ 73,763

Investments (Real Estate Invest

Investments (Real Estate Investments) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 31, 2020
Schedule Of Investments [Line Items]
Depreciation and amortization expenses under real estate investments	$ 1,853	$ 1,550	$ 1,369
Real Estate Investments [Member]
Schedule Of Investments [Line Items]
Depreciation and amortization expenses under real estate investments	$ 1,864	$ 1,782	$ 1,536
Real Estate Investments [Member] | FDOT [Member]
Schedule Of Investments [Line Items]
Undeveloped land disposed through involuntary conversion				$ 443

Investments - Investment (Loss)

Investments - Investment (Loss) Income Summarized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Investments [Line Items]
Recognized investment income (loss)	$ (1,595)	$ 1,176	$ 4,430
Real estate investments	(620)	(211)	340
Net investment income	4,564	13,642	16,581
Available-for-Sale-Fixed-Maturity Securities [Member]
Schedule Of Investments [Line Items]
Investment income	4,252	6,506	5,097
Equity Securities [Member]
Schedule Of Investments [Line Items]
Investment income	1,388	1,333	2,131
Limited Partnership Investment [Member]
Schedule Of Investments [Line Items]
Recognized investment income (loss)	(1,595)	1,176	4,430
Cash and Cash Equivalents [Member]
Schedule Of Investments [Line Items]
Investment income	1,691	4,970	3,485
Short-term Investments [Member]
Schedule Of Investments [Line Items]
Investment income	2	416	1,375
Investment Expense [Member]
Schedule Of Investments [Line Items]
Investment expense	(497)	(465)	(581)
(Loss) Income from Unconsolidated Joint Venture [Member]
Schedule Of Investments [Line Items]
Investment income	$ (57)	$ (83)	$ 304

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Before Tax
Unrealized gain (loss) arising during the period, Before Tax	$ 86	$ 4,902	$ (3,137)
Credit losses on investments, Before Tax	611
Other-than-temporary impairment loss, Before Tax		289	80
Call and repayment (gains) losses charged to investment income, Before Tax	(374)	(141)	(18)
Reclassification adjustment for net realized gains	(1,163)	(218)	(723)
Total other comprehensive (losses) gains, Before Tax	(840)	4,832	(3,798)
Income Tax Effect
Unrealized gain (loss) arising during the period, Income Tax Effect	21	1,219	(795)
Credit losses on investments, Income Tax Effect	150
Other-than-temporary impairment loss, Income Tax Effect		71	20
Call and repayment (gains) losses charged to investment income, Income Tax Effect	(92)	(35)	(5)
Reclassification adjustment for realized gains, Income Tax Effect	(285)	(54)	(183)
Total other comprehensive (losses) gains, Income Tax Effect	(206)	1,201	(963)
Net of Tax
Unrealized gain (loss) arising during the period, Net of Tax	65	3,683	(2,342)
Credit losses on investments, Net of Tax	461
Other-than-temporary impairment loss, Net of Tax		218	60
Call and repayment (gains) losses charged to investment income, Net of Tax	(282)	(106)	(13)
Reclassification adjustment for realized gains, Net of Tax	(878)	(164)	(540)
Total other comprehensive (loss) income, net of income taxes	$ (634)	$ 3,631	$ (2,835)

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds and Certificate Of Deposit Maturity Period	90 days
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short Term Investements Maturity Period	91 days
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short Term Investements Maturity Period	365 days

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, 2020
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2037
Valuation Methodology	Quoted price
3.90% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2032
Valuation Methodology	Discounted cash flow method/Level 3 inputs
4.00% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2031
Valuation Methodology	Discounted cash flow method/Level 3 inputs
3.75% Callable Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2036
Valuation Methodology	Discounted cash flow method/Level 3 inputs
4.55% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2036
Valuation Methodology	Discounted cash flow method/Level 3 inputs
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date	2020
Valuation Methodology	Discounted cash flow method/Level 3 inputs

Fair Value Measurements - Com_2

Fair Value Measurements - Components of Long-Term Debt and Methods Used in Estimating Fair Values (Parenthetical) (Detail)	Dec. 31, 2020	Jul. 29, 2020	Feb. 28, 2020
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.25%
3.90% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.90%		3.90%
4.00% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.00%	4.00%
3.75% Callable Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.75%
4.55% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.55%
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.95%

Fair Value Measurements - Avail

Fair Value Measurements - Available-for-Sale Securities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial Assets:
Restricted cash	$ 2,400	$ 700
Short-term investments		491
Total available-for-sale securities	71,722	202,839
Equity securities	51,130	35,285
Fair Value, Measurements, Recurring [Member]
Financial Assets:
Cash and cash equivalents	431,341	229,218
Restricted cash	2,400	700
Short-term investments		491
Total available-for-sale securities	71,722	202,839
Equity securities	51,130	35,285
Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Cash and cash equivalents	431,341	229,218
Restricted cash	2,400	700
Short-term investments		491
Total available-for-sale securities	65,909	193,926
Equity securities	51,130	35,285
Fair Value, Measurements, Recurring [Member] | (Level 2) [Member]
Financial Assets:
Total available-for-sale securities	5,813	8,913
U.S. Treasury and U.S. Government Agencies [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Total available-for-sale securities	13,968	26,295
U.S. Treasury and U.S. Government Agencies [Member] | Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Total available-for-sale securities	11,236	25,294
U.S. Treasury and U.S. Government Agencies [Member] | Fair Value, Measurements, Recurring [Member] | (Level 2) [Member]
Financial Assets:
Total available-for-sale securities	2,732	1,001
Corporate Bonds [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Total available-for-sale securities	50,931	159,364
Corporate Bonds [Member] | Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Total available-for-sale securities	50,931	159,364
State, Municipalities, and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Total available-for-sale securities	3,081	7,912
State, Municipalities, and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member] | (Level 2) [Member]
Financial Assets:
Total available-for-sale securities	3,081	7,912
Exchange-Traded Debt [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Total available-for-sale securities	3,707	9,145
Exchange-Traded Debt [Member] | Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Total available-for-sale securities	3,707	9,145
Redeemable Preferred Stock [Member] | Fair Value, Measurements, Recurring [Member]
Financial Assets:
Total available-for-sale securities	35	123
Redeemable Preferred Stock [Member] | Fair Value, Measurements, Recurring [Member] | (Level 1) [Member]
Financial Assets:
Total available-for-sale securities	$ 35	$ 123

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, 2020	Dec. 31, 2019
Financial Liabilities:
Revolving credit facility	$ 23,750	$ 9,750
Total long-term debt	156,511	163,695
Carrying Value [Member]
Financial Liabilities:
Revolving credit facility	23,750	9,750
Total long-term debt	156,468	163,635
Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Revolving credit facility	23,750	9,750
Total long-term debt	170,836	177,334
Estimate of Fair Value Measurement [Member] | (Level 2) [Member]
Financial Liabilities:
Revolving credit facility	23,750	9,750
Total long-term debt	147,236	147,375
Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt	23,600	29,959
4.25% Convertible Senior Notes [Member] | Carrying Value [Member]
Financial Liabilities:
Total long-term debt	133,964	134,075
4.25% Convertible Senior Notes [Member] | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt	147,236	147,375
4.25% Convertible Senior Notes [Member] | Estimate of Fair Value Measurement [Member] | (Level 2) [Member]
Financial Liabilities:
Total long-term debt	147,236	147,375
3.75% Callable Promissory Note | Carrying Value [Member]
Financial Liabilities:
Total long-term debt	7,502	7,837
3.75% Callable Promissory Note | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt	7,747	7,861
3.75% Callable Promissory Note | Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt	7,747	7,861
3.90% Promissory Note [Member] | Carrying Value [Member]
Financial Liabilities:
Total long-term debt	9,617
3.90% Promissory Note [Member] | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt	10,044
3.90% Promissory Note [Member] | Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt	10,044
4.55% Promissory Note [Member] | Carrying Value [Member]
Financial Liabilities:
Total long-term debt	5,385	5,611
4.55% Promissory Note [Member] | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt	5,809	5,802
4.55% Promissory Note [Member] | Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt	$ 5,809	5,802
3.95% Promissory Note [Member] | Carrying Value [Member]
Financial Liabilities:
Total long-term debt		8,875
3.95% Promissory Note [Member] | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt		8,887
3.95% Promissory Note [Member] | Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt		8,887
4.00% Promissory Note [Member] | Carrying Value [Member]
Financial Liabilities:
Total long-term debt		7,237
4.00% Promissory Note [Member] | Estimate of Fair Value Measurement [Member]
Financial Liabilities:
Total long-term debt		7,409
4.00% Promissory Note [Member] | Estimate of Fair Value Measurement [Member] | (Level 3) [Member]
Financial Liabilities:
Total long-term debt		$ 7,409

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of Fair Value Information for Financial Assets and Liabilities Carried on Balance Sheet (Parenthetical) (Detail)	Dec. 31, 2020	Jul. 29, 2020	Feb. 28, 2020	Dec. 31, 2019
4.25% Convertible Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.25%
3.90% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.90%		3.90%
3.95% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.95%
4.00% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.00%	4.00%
4.55% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.55%
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%			4.25%
Estimate of Fair Value Measurement [Member] | 3.90% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.90%
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%
Estimate of Fair Value Measurement [Member] | 4.00% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate				4.00%
Estimate of Fair Value Measurement [Member] | 3.75% Callable Promissory Note
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] | 4.55% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.55%			4.55%
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%			4.25%
Carrying Value [Member] | 3.90% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.90%
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%
Carrying Value [Member] | 4.00% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate				4.00%
Carrying Value [Member] | 3.75% Callable Promissory Note
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	3.75%			3.75%
Carrying Value [Member] | 4.55% Promissory Note [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument stated interest rate	4.55%			4.55%

Deferred Policy Acquisition C_3

Deferred Policy Acquisition Costs - Summary of Activity with Respect to Deferred Policy Acquisition Costs (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Beginning balance	$ 21,663	$ 16,507
Policy acquisition costs deferred	71,320	42,302
Amortization	(49,125)	(37,146)	$ (35,204)
Ending balance	$ 43,858	$ 21,663	$ 16,507

Deferred Policy Acquisition C_4

Deferred Policy Acquisition Costs - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 01, 2020	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Policy Acquisition Cost [Line Items]
Amortization			$ 49,125	$ 37,146	$ 35,204
Additional direct costs			71,320	$ 42,302
Anchor [Member]
Deferred Policy Acquisition Cost [Line Items]
Additional direct costs			3,023
Cash bonus payable per $1,000,000 of premium in force	$ 50
Anchor [Member] | Bonus to Anchor [Member]
Deferred Policy Acquisition Cost [Line Items]
Additional direct costs			2,898
Anchor [Member] | Other Related Expenses [Member]
Deferred Policy Acquisition Cost [Line Items]
Additional direct costs			$ 125
United [Member]
Deferred Policy Acquisition Cost [Line Items]
Additional direct costs		$ 15,557

Property and Equipment, Net - S

Property and Equipment, Net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total, at cost	$ 21,345	$ 25,432
Less: accumulated depreciation and amortization	(8,578)	(10,734)
Property and equipment, net	12,767	14,698
Land [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	2,134	1,642
Building [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	3,997	8,101
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	11,072	6,770
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	2,255	2,154
Tenant and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	620	3,388
Other [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	$ 1,267	$ 3,377

Property and Equipment, Net - A

Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Thousands	Jul. 24, 2020	Apr. 02, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 29, 2020
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense			$ 1,854	$ 1,550	$ 1,370
4.00% Promissory Note [Member]
Property, Plant and Equipment [Line Items]
Debt instrument stated interest rate			4.00%			4.00%
Tampa, Florida [Member] | FDOT [Member]
Property, Plant and Equipment [Line Items]
Compensation to acquire for highway expansion project	$ 44,000
Legal and related expenses	3,500
Net gain from involuntary conversion	$ 36,969
Tampa, Florida [Member] | Greenleaf Capital, LLC [Member] | Tampa-Coconut Palms Office Building Exchange, LLC [Member]
Property, Plant and Equipment [Line Items]
Purchase price for office building		$ 4,000

Intangible Assets, Net - Detail

Intangible Assets, Net - Details of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Total, at cost	$ 5,976	$ 5,976
Less: accumulated amortization	(2,408)	(1,784)
Intangible assets, net	3,568	4,192
Anchor Tenant Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Total, at cost	1,761	1,761
In-Place Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Total, at cost	$ 4,215	$ 4,215

Intangible Assets, Net - Additi

Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ 624	$ 608	$ 604
Remaining weighted-average amortization period	11 years 3 months 18 days
Anchor Tenants Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period	13 years 3 months 18 days
In-Place Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining weighted-average amortization period	10 years

Intangible Assets, Net - Schedu

Intangible Assets, Net - Schedule of Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2021	$ 519
2022	445
2023	337
2024	333
2025	333
Thereafter	1,601
Intangible assets, net	$ 3,568	$ 4,192

Other Assets - Summary of Other

Other Assets - Summary of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Benefits receivable related to retrospective reinsurance contracts	$ 10,920	$ 9,480
Prepaid expenses	2,365	2,107
Deposits	445	1,678
Lease acquisition costs, net	453	566
Other	8,428	2,765
Total other assets	$ 22,611	$ 16,596

Revolving Credit Facility - Add

Revolving Credit Facility - Additional Information (Detail) - USD ($)	Jan. 22, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 08, 2021	Feb. 12, 2021
Line of Credit Facility [Line Items]
Net borrowing under revolving credit facility														$ 14,000,000	$ 9,750,000
Interest Expense		$ 2,888,000	$ 2,856,000	$ 3,020,000	$ 2,970,000	$ 2,927,000	$ 2,907,000	$ 2,884,000	$ 4,337,000	$ 4,569,000	$ 4,552,000	$ 4,505,000	$ 4,470,000	11,734,000	13,055,000	$ 18,096,000
Revolving credit facility		23,750,000				$ 9,750,000								$ 23,750,000	9,750,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility, expiration date														Dec. 5, 2021
Credit facility. borrowing capacity		65,000,000												$ 65,000,000
Net borrowing under revolving credit facility														14,000,000
Interest Expense														501,000	452,000
Amortization of Debt Issuance Costs														158,000	$ 157,000
Revolving credit facility		$ 23,750,000												$ 23,750,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Credit facility, expiration date	Dec. 31, 2023
Credit facility. borrowing capacity																	$ 65,000,000	$ 60,000,000

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total principal amount	$ 162,097	$ 173,695
Finance lease liabilities	43	60
Less: unamortized discount and issuance costs	(5,586)	(10,000)
Total long-term debt	156,511	163,695
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total principal amount	139,200	143,750
3.95% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount		8,881
4.00% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount		7,345
3.90% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	9,777
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	7,607	7,955
4.55% Promissory Note [Member]
Debt Instrument [Line Items]
Total principal amount	$ 5,470	$ 5,704

Long-Term Debt - Summary of L_2

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)	Feb. 28, 2020	Dec. 31, 2020	Jul. 29, 2020	Feb. 29, 2020	Jul. 06, 2018
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate		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
4.00% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate		4.00%	4.00%
Debt instrument, maturity date		Feb. 1, 2031
3.90% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.90%	3.90%
Debt instrument, maturity date	Mar. 1, 2032	Apr. 1, 2032
3.75% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate		3.75%
Debt instrument, maturity date		Sep. 1, 2036
4.55% Promissory Note [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate		4.55%			4.55%
Debt instrument, maturity date		Aug. 1, 2036
Finance Lease Liabilities [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date		Aug. 15, 2023

Long-Term Debt (Convertible Sen

Long-Term Debt (Convertible Senior Notes) - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020$ / shares	Dec. 31, 2019$ / shares	Dec. 31, 2018$ / shares
Debt Instrument [Line Items]
Cash dividends on common stock	$ 1.60	$ 1.60	$ 1.475
4.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument stated interest rate	4.25%
Debt conversion date	2037
Debt instrument frequency of periodic payment	semiannually in arrears on March 1 and September 1
Convertible debt, conversion ratio	16.43
Convertible debt, conversion price	$ 60.85
Debt instrument, effective interest rate	7.60%
Debt instrument effective rate till final maturity date	5.40%
Debt discount, remaining amortization period	1 year 2 months 1 day
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
4.25% Convertible Senior Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Cash dividends on common stock	$ 0.35
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
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 the 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 the indenture.
Convertible debt, threshold trading days	20
Convertible debt, threshold consecutive trading days	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 trading days	5 days
Convertible debt, threshold percentage of stock trigger price	98.00%

Long-Term Debt - Summary of Fut

Long-Term Debt - Summary of Future Maturities of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Long Term Debt Rolling Maturity [Abstract]
2020	$ 970
2021	140,207
2022	1,041
2023	1,074
2024	1,117
Thereafter	17,688
Total	$ 162,097	$ 173,695

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest Expense Debt [Abstract]
Contractual interest	$ 7,083	$ 8,061	$ 10,740
Non-cash expense	4,247	4,845	7,487
Capitalized interest	(97)	(303)	(131)
Total	$ 11,233	$ 12,603	$ 18,096

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, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal amount	$ 162,097	$ 173,695
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount	139,200	143,750
Unamortized discount	(4,083)	(7,545)
Liability component – net carrying value before issuance costs	135,117	136,205
Equity component – conversion, net of offering costs	$ 15,151	$ 15,151

Long-Term Debt (3.95% Promissor

Long-Term Debt (3.95% Promissory Note) - Additional Information (Detail) - 3.95% Promissory Note [Member] - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 29, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Debt instrument stated interest rate	3.95%	3.95%
Repayment of debt		In February 2020, the Company repaid its 3.95% Promissory Note for $8,891 including principal and unpaid interest payable at maturity date
Repayments of debt	$ 8,891

Long-Term Debt (3.90% Promissor

Long-Term Debt (3.90% Promissory Note) - Additional Information (Detail) $ in Thousands	Mar. 19, 2020	Feb. 28, 2020USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt			$ 10,000	$ 6,000
3.90% Promissory Note [Member]
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt		$ 10,000
Fixed interest rate		3.90%	3.90%
Debt instrument frequency of periodic payment		monthly
Debt instrument periodic payment		$ 60
Number of installment payments		143
Date of initial payment		Apr. 1, 2020
Debt instrument, balloon payment to be paid		$ 5,007
Outstanding principal and interest payment due date		Mar. 1, 2032	Apr. 1, 2032
Debt instruments, payment terms description		The promissory note may be repaid in full at any time as long as the Company provides at least 60 days’ written notice and pays a prepayment premium and processing fee.
Revised date of initial payment	May 1, 2020
Outstanding principal and interest payment revised due date	Apr. 1, 2032

Long-Term Debt (3.75% Promissor

Long-Term Debt (3.75% Promissory Note) - Additional Information (Detail) - 3.75% Callable Promissory Note [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Debt Instrument [Line Items]
Fixed interest rate	3.75%
Debt instrument, payment frequency description	monthly
Number of installment payments	240
Debt instrument periodic payment	$ 53
Debt instruments, payment terms description	The promissory note may be repaid in full 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	Jul. 29, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 98	$ 0	$ 0
4.00% Promissory Note [Member]
Debt Instrument [Line Items]
Fixed interest rate	4.00%	4.00%
Early retirement of debt - principal and interest	$ 7,062
Loss on extinguishment of debt	$ 98

Long-Term Debt (4.55% Promissor

Long-Term Debt (4.55% Promissory Note) - Additional Information (Detail) $ in Thousands	Jul. 06, 2018USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt		$ 10,000	$ 6,000
4.55% Promissory note [Member]
Debt Instrument [Line Items]
Secured loan agreement period	18 years
Proceeds from issuance of long-term debt	$ 6,000
Debt instrument stated interest rate	4.55%	4.55%
Debt instrument, payment frequency description	monthly
Number of installment payments	216
Debt instrument periodic payment	$ 41
Debt instruments, payment terms description	The promissory note may be repaid in full or in part after September 1, 2020 as long as the Company provides at least 30 days’ written notice and pays a prepayment consideration as specified in the loan agreement.

Reinsurance - Additional Inform

Reinsurance - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)Reinsurer	Dec. 31, 2019USD ($)Reinsurer	Dec. 31, 2018USD ($)
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Percentage of ceding commission on ceded premiums written	30.00%
Number of reinsurers | Reinsurer	38	31
Reinsurance recoverable	$ 85,146	$ 132,678
Assumed premiums written	$ 44,539	$ 4,430	$ (109)
Percentage of assumed premiums to net premium earned	1.11%	0.66%	0.98%
Ceded losses recognized as a reduction in losses and loss adjustment expenses	$ 9,413	$ 114,443	$ 149,120
Decrease in credit loss expense	368
Allowances for credit losses related to the reinsurance recoverable balance	85	0
Reduction in premiums ceded	15,120	6,778
Net reduction in premiums ceded			485
Other assets	22,611	16,596
Reinsurance [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Other assets	10,920	9,480
United [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Assumed premiums written	44,600
Oxbridge [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and loss adjustment expenses		7,400
Net increase in premiums ceded			448
Hurricane Irma [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and loss adjustment expenses	362	103,613	143,890
Hurricane Michael [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and loss adjustment expenses	4,000	10,750	$ 5,230
Hurricane Sally [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and loss adjustment expenses	88
Other Non-catastrophe Claims [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Ceded losses recognized as a reduction in losses and loss adjustment expenses	$ 4,963	$ 80
Reinsurance Recoverable [Member] | Reinsurer Concentration Risk [Member] | Florida Hurricane Catastrophe Fund [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Percentage of reinsurance recoverable major reinsurers	75.80%

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, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Premiums Written:
Direct													$ 459,615	$ 360,525	$ 336,565
Assumed													44,539	4,430	(109)
Gross written													504,154	364,955	336,456
Ceded													(153,458)	(125,765)	(129,643)
Net premiums written													350,696	239,190	206,813
Premiums Earned:
Direct													412,999	340,656	340,966
Assumed													2,919	1,423	2,099
Gross earned													415,918	342,079	343,065
Ceded													(153,458)	(125,765)	(129,643)
Net premiums earned	$ 64,902	$ 62,463	$ 73,449	$ 61,646	$ 58,698	$ 54,434	$ 51,998	$ 51,184	$ 52,758	$ 54,177	$ 52,965	$ 53,522	$ 262,460	$ 216,314	$ 213,422

Losses and Loss Adjustment Ex_3

Losses and Loss Adjustment Expenses - Losses and LAE (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Liability For Unpaid Claims And Claims Adjustment Expense Net [Abstract]
Net balance, beginning of year*	$ 98,174	$ 94,826	$ 97,818
Incurred, net of reinsurance, related to:
Current year	158,236	96,955	96,860
Prior years	1,800	10,559	12,468
Total incurred, net of reinsurance	160,036	107,514	109,328
Paid, net of reinsurance, related to:
Current year	(71,772)	(48,456)	(54,698)
Prior years	(45,373)	(55,710)	(57,622)
Total paid, net of reinsurance	(117,145)	(104,166)	(112,320)
Net balance, end of year	141,065	98,174	94,826
Add: reinsurance recoverable	71,104	116,523	112,760
Gross balance, end of year	$ 212,169	$ 214,697	$ 207,586

Losses and Loss Adjustment Ex_4

Losses and Loss Adjustment Expenses - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	$ 1,800	$ 10,559	$ 12,468
Accidental Year 2019 and Prior [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	1,800
Accidental Year 2020 [Member] | Tropical Storm Eta [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	10,000
Accidental Year 2020 [Member] | Anchor [Member] | Policy Replacement Agreement [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	14,850
Accidental Year 2020 [Member] | Hurricane Sally [Member]
Reserves For Losses And Loss Adjustment Expenses [Line Items]
Unpaid claims and claim adjustment expenses overall development	$ 20,264

Losses and Loss Adjustment Ex_5

Losses and Loss Adjustment Expenses - Schedule of Incurred and Paid Claims Development (Detail) $ in Thousands	Dec. 31, 2020USD ($)Account	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	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	$ 832,703
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	709,863
All outstanding liabilities before 2012, net of reinsurance	898
Liabilities for loss and LAE, net of reinsurance	123,738
Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	8,066
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	5,980
Liabilities for loss and LAE, net of reinsurance	2,086
Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	97,790
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	91,959
Liabilities for loss and LAE, net of reinsurance	5,831
Losses Specific to Hurricane Sally (2020) [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	20,264
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	11,834
Liabilities for loss and LAE, net of reinsurance	8,430
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	67,869	$ 67,469	$ 67,220	$ 66,465	$ 67,058	$ 66,505	$ 64,083	$ 62,742	$ 66,425
Total of IBNR Plus Expected Development Reported Claims	$ 405
Cumulative Number of Reported Claims | Account	6,620
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 67,430	67,203	67,059	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	74,543	74,043	73,763	71,604	72,015	69,906	69,932	67,579
Total of IBNR Plus Expected Development Reported Claims	$ 226
Cumulative Number of Reported Claims | Account	7,008
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 73,986	73,420	72,492	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	92,945	92,454	90,084	88,053	84,917	81,773	75,810
Total of IBNR Plus Expected Development Reported Claims	$ 1
Cumulative Number of Reported Claims | Account	7,661
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 92,264	90,707	87,125	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	102,587	102,149	101,272	96,173	90,902	78,017
Total of IBNR Plus Expected Development Reported Claims	$ 129
Cumulative Number of Reported Claims | Account	7,661
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 101,424	99,200	95,179	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	$ 582	605	692	569	401	308
Cumulative Number of Reported Claims | Account	100
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 582	582	582	465	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	92,752	92,986	92,684	90,879	81,446
Total of IBNR Plus Expected Development Reported Claims	$ 1,325
Cumulative Number of Reported Claims | Account	6,931
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 90,989	89,144	83,311	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	1,837	1,853	1,814	1,314	1,005
Total of IBNR Plus Expected Development Reported Claims	$ 13
Cumulative Number of Reported Claims | Account	228
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,821	1,772	1,405	1,155	689
Accident Year 2016 [Member] | Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	27,634	28,133	26,211	24,126	21,414
Total of IBNR Plus Expected Development Reported Claims	$ 1,179
Cumulative Number of Reported Claims | Account	2,420
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 26,098	25,849	23,316	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	90,958	89,652	88,937	91,443
Total of IBNR Plus Expected Development Reported Claims	$ 6,165
Cumulative Number of Reported Claims | Account	5,764
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 83,383	78,808	66,996	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	$ 792	815	1,119	1,529
Cumulative Number of Reported Claims | Account	156
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 792	789	786	484
Accident Year 2017 [Member] | Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	53,624	53,557	54,080	53,602
Total of IBNR Plus Expected Development Reported Claims	$ 4,198
Cumulative Number of Reported Claims | Account	21,765
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 49,425	47,524	47,514	$ 43,905
Accident Year 2018 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	83,123	83,976	79,436
Total of IBNR Plus Expected Development Reported Claims	$ 9,461
Cumulative Number of Reported Claims | Account	4,756
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 71,809	63,958	41,014
Accident Year 2018 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,061	708	798
Total of IBNR Plus Expected Development Reported Claims	$ 249
Cumulative Number of Reported Claims | Account	136
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 745	607	216
Accident Year 2018 [Member] | Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	16,532	16,532	16,543
Total of IBNR Plus Expected Development Reported Claims	$ 95
Cumulative Number of Reported Claims | Account	1,715
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 16,436	15,992	$ 13,391
Accident Year 2019 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	94,018	95,467
Total of IBNR Plus Expected Development Reported Claims	$ 20,026
Cumulative Number of Reported Claims | Account	5,314
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 70,182	47,471
Accident Year 2019 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	1,501	1,132
Total of IBNR Plus Expected Development Reported Claims	$ 165
Cumulative Number of Reported Claims | Account	152
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 1,290	$ 828
Accident Year 2019 [Member] | Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Cumulative Number of Reported Claims | Account	144
Accident Year 2020 [Member] | Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 133,908
Total of IBNR Plus Expected Development Reported Claims	$ 59,502
Cumulative Number of Reported Claims | Account	8,008
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 58,396
Accident Year 2020 [Member] | Homeowners Wind-only Insurance [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	2,293
Total of IBNR Plus Expected Development Reported Claims	$ 1,213
Cumulative Number of Reported Claims | Account	248
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 750
Accident Year 2020 [Member] | Losses Specific to Any Hurricane Event prior to 2020 [Member]
Claims Development [Line Items]
Cumulative Number of Reported Claims | Account	42
Accident Year 2020 [Member] | Losses Specific to Hurricane Sally (2020) [Member]
Claims Development [Line Items]
Incurred Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 20,264
Total of IBNR Plus Expected Development Reported Claims	$ 6,716
Cumulative Number of Reported Claims | Account	1,685
Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Reinsurance	$ 11,834

Losses and Loss Adjustment Ex_6

Losses and Loss Adjustment Expenses - Reconciliation of Net Incurred and Paid Loss Development Tables to Liability for Losses and Loss Adjustment Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	$ 141,065	$ 98,174	$ 94,826	$ 97,818
Reinsurance recoverables	71,104	116,523
Total gross liability for unpaid losses and loss adjustment expenses	212,169	214,697
Hurricane Sally [Member]
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	8,430
Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	123,738	88,583
Homeowners Wind-only Insurance [Member]
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	2,086	535
Losses Specific to Any Hurricane Event Prior to 2020 [Member]
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	5,831	8,857
Other Short-duration Insurance Product Lines [Member]
Shortduration Insurance Contracts Reconciliation Of Claims Development To Liability [Line Items]
Liabilities for unpaid losses and loss adjustment expenses, net of reinsurance	$ 980	$ 199

Losses and Loss Adjustment Ex_7

Losses and Loss Adjustment Expenses - Supplementary and Unaudited Information about Average Historical Claims Duration (Detail)	Dec. 31, 2020
Hurricane Sally [Member]
Shortduration Insurance Contracts Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	58.40%
Homeowners Multi-peril and Dwelling Fire Insurance [Member]
Shortduration Insurance Contracts Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	53.10%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	20.50%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	8.90%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 4	0.60%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 5	1.70%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 6	1.10%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 7	0.10%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 8	0.00%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 9	0.00%
Homeowners Wind-only Insurance [Member]
Shortduration Insurance Contracts Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	38.70%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	22.30%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	6.50%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 4	2.00%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 5	0.60%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 6	0.00%
Losses Specific to Any Hurricane Prior to 2020 [Member]
Shortduration Insurance Contracts Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	70.90%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	14.50%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	3.90%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 4	4.50%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 5	0.30%
Other Short-duration Insurance Product Lines [Member]
Shortduration Insurance Contracts Historical Claims Duration [Line Items]
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 1	52.40%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 2	15.20%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 3	0.20%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 4	0.00%
Average Annual Percentage Payout of Incurred Losses by Age, Net of Reinsurance, Year 5	0.00%

Segment Information - Additiona

Segment Information - Additional Information (Detail) - Segment	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Number of operating divisions	3
Sales Revenue, Net [Member] | Segment Concentration Risk [Member] | Insurance Operations [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	88.40%	95.00%	95.00%
Assets [Member] | Segment Concentration Risk [Member] | Insurance Operations [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	84.20%	85.50%

Segment Information - Summary o

Segment Information - Summary of Segment Information Reconciled to Consolidated Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue:
Net premiums earned	$ 64,902	$ 62,463	$ 73,449	$ 61,646	$ 58,698	$ 54,434	$ 51,998	$ 51,184	$ 52,758	$ 54,177	$ 52,965	$ 53,522	$ 262,460	$ 216,314	$ 213,422
Net investment income (loss)													4,564	13,642	16,581
Net realized investment gains (losses)													1,000	(254)	6,183
Net unrealized investment gains (losses)													679	7,950	(10,202)
Net other-than-temporary impairment losses														(289)	(80)
Credit losses on investments													(611)	0	0
Policy fee income													3,522	3,229	3,389
Gain on involuntary conversion													36,969	0	0
Other													1,854	1,882	1,999
Total revenue	70,313	104,027	80,717	55,380	63,231	59,979	58,630	60,634	52,997	61,743	58,813	57,739	310,437	242,474	231,292
Expenses:
Losses and loss adjustment expenses	40,372	51,743	39,843	28,078	28,898	27,327	24,293	26,996	42,101	25,769	21,803	19,655	160,036	107,514	109,328
Amortization of deferred policy acquisition costs													49,125	37,146	35,204
Interest expense	2,888	2,856	3,020	2,970	2,927	2,907	2,884	4,337	4,569	4,552	4,505	4,470	11,734	13,055	18,096
Depreciation and amortization													1,853	1,550	1,369
Other													50,761	47,116	40,393
Total expenses	67,401	82,491	68,894	54,723	54,455	52,260	48,315	51,351	64,342	49,820	47,293	42,935	273,509	206,381	204,390
Income before income taxes	$ 2,912	$ 21,536	$ 11,823	$ 657	$ 8,776	$ 7,719	$ 10,315	$ 9,283	$ (11,345)	$ 11,923	$ 11,520	$ 14,804	36,928	36,093	26,902
Operating Segments [Member] | Insurance Operations [Member]
Revenue:
Net premiums earned													262,460	216,314	213,422
Net investment income (loss)													6,655	12,230	10,862
Net realized investment gains (losses)													670	286	4,639
Net unrealized investment gains (losses)													450	6,565	(8,688)
Net other-than-temporary impairment losses														(289)
Credit losses on investments													(591)
Policy fee income													3,522	3,229	3,389
Other													1,067	762	583
Total revenue													274,233	239,097	224,207
Expenses:
Losses and loss adjustment expenses													160,036	107,514	109,328
Amortization of deferred policy acquisition costs													49,125	37,146	35,204
Interest expense													2	2	1
Depreciation and amortization													115	113	125
Other													32,184	30,590	25,797
Total expenses													241,462	175,365	170,455
Income before income taxes													32,771	63,732	53,752
Total revenue from non-affiliates													274,233	239,097	224,207
Operating Segments [Member] | Real Estate Operations [Member]
Revenue:
Net investment income (loss)													3	1	1
Gain on involuntary conversion													36,969
Other													9,502	9,366	9,324
Total revenue													46,474	9,367	9,325
Expenses:
Interest expense													1,947	1,653	1,568
Depreciation and amortization													2,526	2,542	2,373
Other													5,486	5,168	4,254
Total expenses													9,959	9,363	8,195
Income before income taxes													36,515	4	1,130
Total revenue from non-affiliates													44,709	7,738	7,718
Operating Segments [Member] | Corporate and Other [Member]
Revenue:
Net investment income (loss)													(492)	2,348	5,554
Net realized investment gains (losses)													330	(540)	1,544
Net unrealized investment gains (losses)													229	1,385	(1,514)
Net other-than-temporary impairment losses															(80)
Credit losses on investments													(20)
Other													2,831	5,738	4,999
Total revenue													2,878	8,931	10,503
Expenses:
Interest expense													10,710	12,043	17,008
Depreciation and amortization													1,706	1,285	1,011
Other													22,820	23,246	20,464
Total expenses													35,236	36,574	38,483
Income before income taxes													(32,358)	(27,643)	(27,980)
Total revenue from non-affiliates													848	7,176	9,331
Intersegment Eliminations [Member]
Revenue:
Net investment income (loss)													(1,602)	(937)	164
Other													(11,546)	(13,984)	(12,907)
Total revenue													(13,148)	(14,921)	(12,743)
Expenses:
Interest expense													(925)	(643)	(481)
Depreciation and amortization													(2,494)	(2,390)	(2,140)
Other													(9,729)	(11,888)	(10,122)
Total expenses													$ (13,148)	$ (14,921)	$ (12,743)

Segment Information - Summary_2

Segment Information - Summary of Segment Assets Reconciled to Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total assets	$ 941,313	$ 802,609
Consolidation, Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	(24,917)	(15,060)
Insurance Operations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	799,299	663,280
Real Estate Operations [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	128,383	93,727
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	$ 38,548	$ 60,662

Leases - Summarizes of Right-of

Leases - Summarizes of Right-of-use Assets and Liabilities for Operating and Finance Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating leases:
ROU assets	$ 4,002	$ 484
Liabilities	4,014	513
Finance leases:
ROU assets	79	79
Liabilities	$ 43	$ 60

Leases - Additional Information

Leases - Additional Information (Detail)	1 Months Ended
	Dec. 31, 2020USD ($)
Disclosure Of Leases [Abstract]
Gain (loss) on recognized early termination	$ 0

Leases - Summarizes the Company

Leases - Summarizes the Company's operating and finance leases in which the Company (Detail)	12 Months Ended
	Dec. 31, 2020
Minimum [Member]
Operating lease:
Initial Term	1 month
Maximum [Member]
Operating lease:
Initial Term	10 years
Office Equipment [Member]
Operating lease:
Renewal Option	Yes
Office Equipment [Member] | Minimum [Member]
Operating lease:
Initial Term	1 month
Finance lease:
Initial Term	3 years
Office Equipment [Member] | Maximum [Member]
Operating lease:
Initial Term	63 months
Finance lease:
Initial Term	5 years
Office space [Member]
Operating lease:
Renewal Option	Yes
Office space [Member] | Minimum [Member]
Operating lease:
Initial Term	3 years
Office space [Member] | Maximum [Member]
Operating lease:
Initial Term	10 years

Leases - Maturities of lease li

Leases - Maturities of lease liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
2021	$ 1,724
2022	1,536
2023	887
Total lease payments	4,147
Less: interest and foreign taxes	133
Total lease obligations	4,014	$ 513
2021	19
2022	17
2023	9
Total lease payments	45
Less: interest and foreign taxes	2
Total lease obligations	$ 43	$ 60

Leases -The Company's operating

Leases -The Company's operating and finance leases (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Finance lease costs:
Amortization – ROU assets	[1]	$ 18	$ 15
Interest expense		2	2
Operating lease costs	[1]	1,123	314
Short-term lease costs	[1]	167	198
Total lease costs		1,310	529
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows – finance leases		2	2
Operating cash flows – operating leases		1,132	318
Financing cash flows – finance leases		$ 17	$ 14
Weighted-average remaining lease term:
Finance leases (in years)		2 years 8 months 12 days
Operating leases (in years)		2 years 9 months 18 days
Weighted-average discount rate:
Finance leases		3.70%
Operating leases		2.80%
[1]	Included in other operating expenses on the consolidated statements of income.

Leases - Summarizes the Compa_2

Leases - Summarizes the Company's operating leases (Detail)	12 Months Ended
	Dec. 31, 2020
Office space [Member]
Operating lease:
Renewal Option	Yes
Office space [Member] | Minimum [Member]
Operating lease:
Initial Term	1 year
Office space [Member] | Maximum [Member]
Operating lease:
Initial Term	3 years
Retail space [Member]
Operating lease:
Renewal Option	Yes
Retail space [Member] | Minimum [Member]
Operating lease:
Initial Term	3 years
Retail space [Member] | Maximum [Member]
Operating lease:
Initial Term	20 years
Boat docks/wet slips [Member]
Operating lease:
Renewal Option	Yes
Boat docks/wet slips [Member] | Minimum [Member]
Operating lease:
Initial Term	1 month
Boat docks/wet slips [Member] | Maximum [Member]
Operating lease:
Initial Term	12 months

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Tax Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 1,089	$ 6,177	$ 7,443
State	30	1,362	1,490
Foreign	106	107	104
Total current taxes	1,225	7,646	9,037
Deferred:
Federal	6,694	1,586	(245)
State	1,436	287	392
Foreign	(7)	(2)	(7)
Total deferred taxes	8,123	1,871	140
Income tax expense	$ 9,348	$ 9,517	$ 9,177

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income taxes at statutory rate	$ 7,755	$ 7,579	$ 5,649
State income taxes, net of federal tax benefits	1,364	1,362	1,303
Effects of tax rate changes		(37)
Stock-based compensation	(296)	(159)	2,156
Non-deductible executive compensation	757	685	306
Other	(232)	87	(237)
Income tax expense	$ 9,348	$ 9,517	$ 9,177
Income taxes at statutory rate, percentage	21.00%	21.00%	21.00%
Increase (decrease) in income taxes resulting from:
State income taxes, net of federal tax benefits, percentage	3.70%	3.80%	4.80%
Stock-based compensation, percentage	(0.80%)	(0.40%)	8.00%
Non-deductible executive compensation, percentage	2.00%	1.90%	1.10%
Other, percentage	(0.60%)	0.10%	(0.80%)
Income tax expense, percentage	25.30%	26.40%	34.10%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Uncertain tax positions or unrecognized tax benefits	$ 0	$ 0	$ 0
Accrued interest and penalty	0	0	0
Income tax expense	$ 9,348,000	$ 9,517,000	$ 9,177,000
Effective tax rate	25.30%	26.40%	34.10%
Derecognition of deferred tax assets			$ 1,825,000
Disallowance of the deductibility dividends paid			$ 1,887,000

Income Taxes - Significant Comp

Income Taxes - Significant Components of Net Deferred Income Tax Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Unearned premiums	$ 9,687	$ 6,272
Losses and loss adjustment expenses	2,902	2,838
Stock-based compensation	1,084	878
Unearned revenue	335	120
Accrued expenses	146	86
Credit losses	120	77
Organizational costs	76	63
Bad debt reserve	52	9
Total deferred tax assets	14,402	10,343
Deferred tax liabilities:
Gain on involuntary conversion	(9,066)
Deferred policy acquisition costs	(9,459)	(5,469)
Intangible assets	(2,226)	(2,214)
Basis difference related to partnership investments	(1,578)	(1,188)
Prepaid expenses	(454)	(392)
Net unrealized investment gains	(1,507)	(1,547)
Property and equipment	(1,262)	(1,661)
Basis difference related to convertible senior notes	(242)	(1,256)
Other	(533)	(624)
Total deferred tax liabilities	(26,327)	(14,351)
Net deferred tax liabilities	$ (11,925)	$ (4,008)

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, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 2,707	$ 15,390	$ 8,936	$ 547	$ 6,432	$ 5,853	$ 7,553	$ 6,738	$ (8,466)	$ 8,997	$ 6,403	$ 10,791	$ 27,580	$ 26,576	$ 17,725
Less: (Income) loss attributable to participating securities													(1,462)	(1,448)	717
Basic Earnings Per Share:
Income allocated to common stockholders, Income (Numerator)													$ 26,118	$ 25,128	$ 18,442
Income allocated to common stockholders, Shares (Denominator)													7,351	7,580	7,878
Income allocated to common stockholders, Per Share Amount	$ 0.35	$ 1.97	$ 1.16	$ 0.07	$ 0.84	$ 0.73	$ 0.93	$ 0.82	$ (0.95)	$ 1.08	$ 0.96	$ 1.25	$ 3.55	$ 3.32	$ 2.34
Diluted Earnings Per Share:
Income available to common stockholders and assumed conversions, Income (Numerator)													$ 33,823	$ 33,876	$ 18,442
Income available to common stockholders and assumed conversions, Shares (Denominator)													9,694	10,238	7,895
Income available to common stockholders and assumed conversions, Per Share Amount	$ 0.35	$ 1.68	$ 1.08	$ 0.07	$ 0.82	$ 0.73	$ 0.90	$ 0.82	$ (0.95)	$ 1	$ 0.92	$ 1.11	$ 3.49	$ 3.31	$ 2.34
Convertible Senior Notes [Member]
Effect of Dilutive Securities:
Dilutive Securities, Income (Numerator)													$ 7,705	$ 8,748
Dilutive Securities, Shares (Denominator)													2,320	2,646
Stock Options [Member]
Effect of Dilutive Securities:
Dilutive Securities, Shares (Denominator)													23	12	17

Stockholders' Equity (Common St

Stockholders' Equity (Common Stock) - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Oct. 16, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 13, 2020
Class of Stock [Line Items]
Stock repurchased and retired, total costs		$ 1,547	$ 1,203	$ 1,151
Dividends per common share	$ 0.40
Dividends, date of declared	Oct. 16, 2020
Dividends, date of record	Nov. 20, 2020
Dividends. date of paid	Dec. 18, 2020
Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, shares		33,633	28,784	27,281
Share Repurchase Plan [Member]
Class of Stock [Line Items]
Common stock repurchase authorized amount					$ 20,000
Common stock repurchased and retired, weighted average price, excluding fees and commissions		$ 39.93	$ 41.49	$ 39.09
Stock repurchased and retired, total costs		$ 5,161	$ 18,851	$ 20,015
Common stock repurchased and retired, weighted average price, including fees and commissions		$ 39.96	$ 41.52	$ 39.12
Share Repurchase Plan [Member] | Common Stock [Member]
Class of Stock [Line Items]
Repurchase and retirement of common stock, shares		129,142	454,010	511,628

Stockholders' Equity (Prepaid S

Stockholders' Equity (Prepaid Share Repurchase Forward Contract) - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020shares
4.25% Convertible Senior Notes [Member]
Class of Stock [Line Items]
Debt instrument stated interest rate	4.25%
Share Repurchase Plan [Member]
Class of Stock [Line Items]
Number of outstanding prepaid share repurchase forward contract	1
Share Repurchase Plan [Member] | Societe Generale [Member] | 4.25% Convertible Senior Notes [Member]
Class of Stock [Line Items]
Repurchase of Common stock, shares	191,000
Prepaid stock repurchases forward contract settlement period	2022
Debt instrument stated interest rate	4.25%

Stockholders' Equity (Preferred

Stockholders' Equity (Preferred Stock) - Additional Information (Detail)	May 15, 2020shares
Class of Stock [Line Items]
Preferred stock unissued and undesignated	20,000,000
Series A Cumulative Redeemable Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock cancelled and undesignated	1,500,000
Series B Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock cancelled and undesignated	400,000

Stock-Based Compensation (Incen

Stock-Based Compensation (Incentive Plans) - Additional Information (Detail)	Dec. 31, 2020shares
Omnibus Incentive Plan New Plan 2012 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares available for grant	1,477,976

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock Options) - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options exercisable contractual term	10 years
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized compensation expenses	$ 1,180	$ 870	$ 521
Deferred tax benefits recognized	76	22	$ 79
Unrecognized compensation expense related to nonvested stock options	$ 1,889	$ 1,835
Recognition of remaining compensation expense over a weighted-average period	2 years 4 months 24 days
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, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward
Outstanding, Beginning Balance, Number of Options	340,000	240,000	130,000
Granted, Number of options	110,000	110,000	110,000
Exercised, Number of Options	(10,000)	(10,000)	0
Outstanding, Ending Balance, Number of Options	440,000	340,000	240,000	130,000
Exercisable, Number of Options	165,000
Outstanding, Beginning Balance, Weighted Average Exercise Price	$ 43.21	$ 37.19	$ 34.82
Granted, Weighted Average Exercise Price	48	53	40
Exercised, Weighted Average Exercise Price	6.30	6.30
Outstanding, Ending Balance, Weighted Average Exercise Price	45.25	$ 43.21	$ 37.19	$ 34.82
Exercisable, Weighted-Average Exercise Price	$ 42.17
Outstanding, Weighted-Average Remaining Contractual Term	7 years 7 months 6 days	7 years 10 months 24 days	8 years 9 months 18 days	8 years 2 months 12 days
Exercisable, Weighted-Average Remaining Contractual Term	6 years 8 months 12 days
Outstanding, Aggregate Intrinsic Value	$ 3,113	$ 1,657	$ 3,278	$ 472
Exercisable, Aggregate Intrinsic Value	$ 1,664

Stock-Based Compensation - Info

Stock-Based Compensation - Information about Options Exercised (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award Options Activity [Abstract]
Options exercised	10,000	10,000	0
Total intrinsic value of exercised options	$ 288	$ 347	$ 0
Tax benefits realized	$ 71	$ 85	$ 0

Stock-Based Compensation - Assu

Stock-Based Compensation - Assumptions Used to Estimate the Fair Value of Stock Options Granted (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected dividend yield	3.48%	3.34%	4.00%
Expected volatility	38.68%	40.17%	42.22%
Risk-free interest rate	1.63%	2.53%	2.57%
Expected life (in years)	5 years	5 years	5 years

Stock Based Compensation - Info

Stock Based Compensation - Information with Respect to Unvested Restricted Stock Awards Stock Option and Incentive Plan (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Forfeited, Number of Restricted Stock Awards		(284,000)
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance, shares	396,760	632,296	597,690
Granted, Number of Restricted Stock Awards	192,680	180,404	189,860
Vested, Number of Restricted Stock Awards	(146,801)	(116,164)	(98,617)
Forfeited, Number of Restricted Stock Awards	(18,852)	(299,776)	(56,637)
Ending balance, shares	423,787	396,760	632,296
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$ 41.71	$ 33.33	$ 32.82
Granted, Weighted-Average Grant Date Fair Value	45.57	42.79	41.81
Vested, Weighted-Average Grant Date Fair Value	40.54	40.10	40.82
Forfeited, Weighted-Average Grant Date Fair Value	43.60	25.31	36.46
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$ 43.79	$ 41.71	$ 33.33

Stock-Based Compensation (Restr

Stock-Based Compensation (Restricted Stock Awards) - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock Awards Forfeited		284,000
Declared dividends charged to earnings		$ 237,000	$ 195,000
Retained income dividends cumulatively paid			1,887,000
General and Administrative Personnel Expense [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Declared dividends charged to earnings		170,000	159,000
Retained income dividends cumulatively paid			1,346,000
Other Operating Income (Expense) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Declared dividends charged to earnings		67,000	36,000
Retained income dividends cumulatively paid			541,000
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized compensation expenses	$ 6,953,000	5,590,000	$ 4,111,000
Total unrecognized compensation expense, Nonvested restricted stock arrangements granted	$ 13,666,000	$ 12,661,000
Recognition of remaining compensation expense over a weighted-average period	2 years 3 months 18 days
Restricted Stock Awards Forfeited	18,852	299,776	56,637
Awards issued during the period	192,680	180,404	189,860
Other Than Service 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 - In_2

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Deferred tax benefits recognized	$ 1,296	$ 1,075	$ 862
Tax benefits realized for restricted stock and paid dividends	1,448	1,129	1,086
Fair value of vested restricted stock	$ 5,952	$ 4,658	$ 4,025

Employee Benefit Plan - Additio

Employee Benefit Plan - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)Plan	Dec. 31, 2018USD ($)
US Employees [Member]
Employee Benefit Plan [Line Items]
Maximum percentage of employee contribution	100.00%
Company contribution in the plan	$ 731,000	$ 638,000	$ 536,000
US Employees [Member] | Deferred Profit Sharing [Member]
Employee Benefit Plan [Line Items]
Company contribution in the plan	$ 0
US Employees [Member] | Maximum [Member]
Employee Benefit Plan [Line Items]
Maximum percentage of employer contribution	4.00%
India Employees [Member]
Employee Benefit Plan [Line Items]
Employment benefit accrued	$ 130,000	$ 89,000
Matching contribution, number of defined contribution plans | Plan		2
Defined benefit plan amount recognized	$ 41,000	$ 17,000	$ 14,000

Commitments and Contingencies -

Commitments and Contingencies - Rental Income Due Under Non-Cancellable Operating Leases (Detail) $ in Thousands	Dec. 31, 2020USD ($)
Commitments And Contingencies Disclosure [Abstract]
2021	$ 3,706
2022	3,537
2023	3,428
2024	3,414
2025	3,335
Thereafter	13,710
Total	$ 31,130

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Unfunded Balance	$ 10,304	$ 15,130

Quarterly Results of Operatio_3

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, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Net premiums earned	$ 64,902	$ 62,463	$ 73,449	$ 61,646	$ 58,698	$ 54,434	$ 51,998	$ 51,184	$ 52,758	$ 54,177	$ 52,965	$ 53,522	$ 262,460	$ 216,314	$ 213,422
Total revenues	70,313	104,027	80,717	55,380	63,231	59,979	58,630	60,634	52,997	61,743	58,813	57,739	310,437	242,474	231,292
Losses and loss adjustment expenses	40,372	51,743	39,843	28,078	28,898	27,327	24,293	26,996	42,101	25,769	21,803	19,655	160,036	107,514	109,328
Policy acquisition and other underwriting expenses	14,832	14,210	12,991	11,826	11,759	10,988	10,077	9,673	9,795	9,829	9,959	9,360	53,859	42,497	38,943
Interest expense	2,888	2,856	3,020	2,970	2,927	2,907	2,884	4,337	4,569	4,552	4,505	4,470	11,734	13,055	18,096
Total expenses	67,401	82,491	68,894	54,723	54,455	52,260	48,315	51,351	64,342	49,820	47,293	42,935	273,509	206,381	204,390
Income before income taxes	2,912	21,536	11,823	657	8,776	7,719	10,315	9,283	(11,345)	11,923	11,520	14,804	36,928	36,093	26,902
Net income (loss)	2,707	15,390	8,936	547	6,432	5,853	7,553	6,738	(8,466)	8,997	6,403	10,791	27,580	26,576	17,725
Comprehensive (loss) income	$ 2,611	$ 15,634	$ 10,286	$ (1,585)	$ 6,519	$ 6,189	$ 8,767	$ 8,732	$ (8,818)	$ 8,955	$ 6,413	$ 8,340	$ 26,946	$ 30,207	$ 14,890
Earnings (loss) per share:
Basic	$ 0.35	$ 1.97	$ 1.16	$ 0.07	$ 0.84	$ 0.73	$ 0.93	$ 0.82	$ (0.95)	$ 1.08	$ 0.96	$ 1.25	$ 3.55	$ 3.32	$ 2.34
Diluted	$ 0.35	$ 1.68	$ 1.08	$ 0.07	$ 0.82	$ 0.73	$ 0.90	$ 0.82	$ (0.95)	$ 1	$ 0.92	$ 1.11	$ 3.49	$ 3.31	$ 2.34

Regulatory Requirements and R_3

Regulatory Requirements and Restrictions - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2020USD ($)
Statutory Accounting Practices [Line Items]
Payment of dividends	$ 139,670
Restricted net assets of Company's insurance subsidiaries	$ 160,710	$ 191,210
TypTap [Member]
Statutory Accounting Practices [Line Items]
Statutory accounting practices, Future dividend payments restrictions, Capital Surplus Percentage	10.00%
Statutory capital and surplus	$ 38,500	27,200
Statutory net income (loss) Amount	(10,900)	$ (5,200)	$ 2,034
Deposit in Trust with state regulatory authorities	$ 2,000
Premium to capital surplus ratio for gross written premiums	2.47	2.23	0.57
Premium to capital surplus ratio for net written premiums	1.50	1.63	0.38
TypTap [Member] | U.S. Government Security [Member]
Statutory Accounting Practices [Line Items]
Deposit in Trust with state regulatory authorities	$ 310
TypTap [Member] | Minimum [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 10,000	$ 10,000
HCPCI Domiciled in Florida [Member]
Statutory Accounting Practices [Line Items]
Statutory accounting practices, Future dividend payments restrictions, Capital Surplus Percentage	10.00%
Statutory capital and surplus	$ 119,900	159,000
Statutory net income (loss) Amount	(28,780)	18,400	$ 20,700
HCPCI Domiciled in Florida [Member] | Minimum [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 31,140	21,700
HCPCI and TypTap [Member]
Statutory Accounting Practices [Line Items]
Deposit in Trust with state regulatory authorities				$ 300
Insurance Subsidiaries Domiciled In Florida [Member]
Statutory Accounting Practices [Line Items]
Statutory accounting practices, Future dividend payments restrictions, Capital Surplus Percentage	10.00%
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%
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%
Insurance Subsidiaries Domiciled In Florida [Member] | Maximum [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
Claddaugh Domiciled in Bermuda [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 2,000
Statutory capital and surplus	58,300	34,500
Statutory net income (loss) Amount	1,400	(4,400)	(8,100)
Statutory accounting practices returns of capital distribution		$ 6,000	$ 10,000
Statutory accounting practices capital contribution	22,600
Us Insurance Subsidiaries [Member]
Statutory Accounting Practices [Line Items]
Statutory capital and surplus	158,430
Us Insurance Subsidiaries [Member] | Minimum [Member]
Statutory Accounting Practices [Line Items]
Minimum amount of statutory capital and surplus required	$ 122,959

Regulatory Requirements and R_4

Regulatory Requirements and Restrictions - Summary of Required Ratio of Gross and Net Written Premium to Surplus (Detail)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
HCPCI [Member]
Statutory Accounting Practices [Line Items]
Premium to capital surplus ratio for gross written premiums	3.02	1.92	2.17
Premium to capital surplus ratio for net written premiums	1.84	1.15	1.27
TypTap [Member]
Statutory Accounting Practices [Line Items]
Premium to capital surplus ratio for gross written premiums	2.47	2.23	0.57
Premium to capital surplus ratio for net written premiums	1.50	1.63	0.38

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) $ in Thousands	May 28, 2018USD ($)	Mar. 31, 2018USD ($)Director	Dec. 31, 2020USD ($)Account
Oxbridge [Member]
Related Party Transaction [Line Items]
Number of non-employee directors | Account			3
Payment for contract termination settlement fee	$ 600
Derecognition of accrued benefits	$ 622
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
First Home Bank [Member]
Related Party Transaction [Line Items]
Certificates of deposits value		$ 15,094
Certificates of deposit maturity period		6 months
Number of directors as members on bank's board | Director		2

Condensed Financial Informati_3

Condensed Financial Information of HCI Group, Inc. - Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 431,341	$ 229,218
Fixed-maturity securities, available for sale, at fair value	71,722	202,839
Equity securities, at fair value	51,130	35,285
Limited partnership investments, at equity	27,691	28,346
Property and equipment, net	12,767	14,698
Right-of-use assets - operating leases	4,002	484
Income taxes receivable	4,554	1,040
Other assets	22,611	16,596
Total assets	941,313	802,609
Liabilities and Stockholders’ Equity
Lease liabilities - operating leases	4,014	513
Deferred income taxes, net	11,925	4,008
Revolving credit facility	23,750	9,750
Long-term debt	156,511	163,695
Total liabilities	740,177	617,066
Total stockholders’ equity	201,136	185,543	$ 181,441	$ 193,975
Total liabilities and stockholders’ equity	941,313	802,609
HCI Group [Member]
Assets
Cash and cash equivalents	13,944	17,738
Fixed-maturity securities, available for sale, at fair value	216	745
Equity securities, at fair value	9,496	6,689
Limited partnership investments, at equity	20,542	21,405
Note receivable – related party	23,280	1,280
Investment in subsidiaries	304,816	290,675
Property and equipment, net	753	345
Right-of-use assets - operating leases	7,118	2,023
Income taxes receivable	8,348
Other assets	4,036	2,443
Total assets	392,549	343,343
Liabilities and Stockholders’ Equity
Accrued expenses and other liabilities	6,660	5,813
Lease liabilities - operating leases	4,319	713
Income tax payable		1,443
Deferred income taxes, net	1,645	2,587
Revolving credit facility	23,750	9,750
Long-term debt	133,967	134,080
Due to related parties	21,072	3,414
Total liabilities	191,413	157,800
Total stockholders’ equity	201,136	185,543
Total liabilities and stockholders’ equity	$ 392,549	$ 343,343

Condensed Financial Informati_4

Condensed Financial Information of HCI Group, Inc. - Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements Captions [Line Items]
Net investment income (loss)													$ 4,564	$ 13,642	$ 16,581
Net realized investment gains (losses)													1,000	(254)	6,183
Net unrealized investment gains (losses)													679	7,950	(10,202)
Net other-than-temporary impairment losses													0	(289)	(80)
Credit losses on investments													(611)	0	0
Loss on repurchases of convertible senior notes													(150)	0	0
Interest expense	$ (2,888)	$ (2,856)	$ (3,020)	$ (2,970)	$ (2,927)	$ (2,907)	$ (2,884)	$ (4,337)	$ (4,569)	$ (4,552)	$ (4,505)	$ (4,470)	(11,734)	(13,055)	(18,096)
Income tax benefit													(9,348)	(9,517)	(9,177)
Equity in income of subsidiaries													(57)	(83)	304
Net income	$ 2,707	$ 15,390	$ 8,936	$ 547	$ 6,432	$ 5,853	$ 7,553	$ 6,738	$ (8,466)	$ 8,997	$ 6,403	$ 10,791	27,580	26,576	17,725
HCI Group [Member]
Condensed Financial Statements Captions [Line Items]
Net investment income (loss)													(676)	2,295	5,348
Net realized investment gains (losses)													330	(541)	1,544
Net unrealized investment gains (losses)													229	1,385	(1,514)
Net other-than-temporary impairment losses															(80)
Credit losses on investments													(20)
Loss on repurchases of convertible senior notes													(150)
Interest expense													(10,710)	(12,042)	(17,007)
Operating expenses													(6,887)	(6,353)	(5,429)
Loss before income tax benefit and equity in income of subsidiaries													(17,884)	(15,256)	(17,138)
Income tax benefit													4,024	3,092	1,856
Net loss before equity in income of subsidiaries													(13,860)	(12,164)	(15,282)
Equity in income of subsidiaries													41,440	38,740	33,007
Net income													$ 27,580	$ 26,576	$ 17,725

Condensed Financial Informati_5

Condensed Financial Information of HCI Group, Inc. - Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 2,707	$ 15,390	$ 8,936	$ 547	$ 6,432	$ 5,853	$ 7,553	$ 6,738	$ (8,466)	$ 8,997	$ 6,403	$ 10,791	$ 27,580	$ 26,576	$ 17,725
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation													8,133	6,460	4,632
Net realized investment (gains) losses													(1,000)	254	(6,183)
Net unrealized investment (gains) losses													(679)	(7,950)	10,202
Net (accretion of discount) amortization of premiums on investments in fixed-maturity securities													(100)	50	761
Depreciation and amortization													8,747	8,942	10,996
Net loss (income) from limited partnership interests													1,595	(1,176)	(4,430)
Distributions from limited partnership interests													1,215	4,176	2,345
Other-than-temporary impairment losses													0	289	80
Credit losses charged to income													611	0	0
Loss on repurchases of convertible senior notes													150	0	0
Loss (income) from unconsolidated joint venture													57	83	(304)
Deferred income taxes													8,123	1,871	141
Changes in operating assets and liabilities:
Income taxes													(3,514)	(69)	15,221
Other assets													(4,578)	(7,837)	408
Accrued expenses and other liabilities													16,872	9,413	2,444
Net cash provided by operating activities													77,311	54,047	28,595
Cash flows from investing activities:
Investments in limited partnership interests													(4,241)	(1,174)	(7,182)
Purchase of fixed-maturity securities													(34,951)	(82,662)	(113,174)
Purchase of equity securities													(68,223)	(24,637)	(52,250)
Purchase of short-term and other investments													(200)	(1,178)	(201,538)
Purchase of property and equipment													(6,437)	(2,887)	(2,187)
Proceeds from sales of fixed-maturity securities													81,433	7,947	81,809
Proceeds from calls, repayments and maturities of fixed-maturity securities													84,459	59,343	82,177
Proceeds from sales of equity securities													47,312	37,669	66,439
Distributions from limited partnership interests													2,086	2,121	158
Return of capital from subsidiary															695
Net cash provided by (used in) investing activities													143,215	50,459	(17,678)
Cash flows from financing activities:
Repurchases of common stock													(1,547)	(1,203)	(1,151)
Repurchases of common stock under share repurchase plan													(5,161)	(18,851)	(20,015)
Repurchases of convertible senior notes													(4,459)
Debt issuance costs paid													(165)	(459)	(105)
Cash dividends paid to stockholders													(12,694)	(13,012)	(11,318)
Cash dividends received under share repurchase forward contract													306	306	967
Proceeds from exercise of stock options													63	63
Net cash used in financing activities													(16,705)	(114,724)	(27,288)
Net increase (decrease) in cash, cash equivalents and restricted cash													203,823	(10,240)	(16,535)
Cash and cash equivalents at beginning of year				229,918									229,918
Cash and cash equivalents at end of year	433,741				229,918								433,741	229,918
HCI Group [Member]
Cash flows from operating activities:
Net income													27,580	26,576	17,725
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation													4,488	3,638	2,550
Net realized investment (gains) losses													(330)	541	(1,544)
Net unrealized investment (gains) losses													(229)	(1,385)	1,514
Net (accretion of discount) amortization of premiums on investments in fixed-maturity securities													(42)	66	(3)
Depreciation and amortization													4,686	5,194	7,737
Net loss (income) from limited partnership interests													1,781	(701)	(3,007)
Distributions from limited partnership interests													844	1,661	1,495
Other-than-temporary impairment losses															80
Credit losses charged to income													20
Loss on repurchases of convertible senior notes													150
Loss (income) from unconsolidated joint venture													(41,440)	(38,740)	(33,007)
Deferred income taxes													(935)	(916)	1,075
Changes in operating assets and liabilities:
Income taxes													(9,791)	4,462	4
Other assets													(629)	(3,042)	(144)
Accrued expenses and other liabilities													1,096	1,750	273
Due to related parties													17,438	(16,754)	(2,600)
Net cash provided by operating activities													4,687	(17,650)	(7,852)
Cash flows from investing activities:
Investments in limited partnership interests													(3,376)	(1,602)	(5,125)
Investment in note receivable – related party													(22,000)
Purchase of fixed-maturity securities													(7)	(234)	(5,864)
Purchase of equity securities													(35,855)	(8,733)	(16,913)
Purchase of short-term and other investments													(200)	(187)	(50,510)
Purchase of property and equipment													(742)	(176)	(154)
Proceeds from sales of fixed-maturity securities													447	477	2,215
Proceeds from calls, repayments and maturities of fixed-maturity securities													27	35,361
Proceeds from sales of equity securities													30,688	9,906	20,698
Proceeds from sales, redemptions and maturities of short-term and other investments													537	25,733	25,401
Collection of note receivable – related party															6,000
Distributions from limited partnership interests													1,614	948	158
Dividends received from subsidiary													52,500	44,000	42,000
Return of capital from subsidiary													9	6,000	10,000
Investment in subsidiaries													(22,629)	(5,000)
Net cash provided by (used in) investing activities													1,013	106,493	27,906
Cash flows from financing activities:
Repurchases of common stock													(1,547)	(1,203)	(1,151)
Repurchases of common stock under share repurchase plan													(5,161)	(18,851)	(20,015)
Repurchases of convertible senior notes													(4,459)
Debt issuance costs paid														(459)
Cash dividends paid to stockholders													(12,694)	(13,012)	(11,318)
Cash dividends received under share repurchase forward contract													306	306	967
Net borrowing under revolving credit facility													14,000	9,750
Proceeds from exercise of stock options													63	63
Repayment of long-term debt													(2)	(89,991)
Net cash used in financing activities													(9,494)	(113,397)	(31,517)
Net increase (decrease) in cash, cash equivalents and restricted cash													(3,794)	(24,554)	(11,463)
Cash and cash equivalents at beginning of year				$ 17,738				$ 42,292				$ 53,755	17,738	42,292	53,755
Cash and cash equivalents at end of year	$ 13,944				$ 17,738				$ 42,292				$ 13,944	$ 17,738	$ 42,292

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Mar. 08, 2021	Mar. 02, 2021	Feb. 26, 2021	Jan. 18, 2021	Jan. 15, 2021	Oct. 16, 2020	Feb. 12, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Dividends per common share						$ 0.40
Dividends, date of declared						Oct. 16, 2020
Dividends, date of record						Nov. 20, 2020
Dividends. date of paid						Dec. 18, 2020
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility. borrowing capacity								$ 65,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends per common share					$ 0.40
Dividends, date of declared					Jan. 15, 2021
Dividends, date of record					Feb. 19, 2021
Dividends. date of paid					Mar. 19, 2021
Policy replacement date				Jun. 1, 2021
Issuance of common stock shares				100,000
Commission percentage on aggregate replacement premium				6.00%
Warrant to purchase shares			750,000
Exercise price			$ 54.40
Subsequent Event [Member] | TTIG [Member]
Subsequent Event [Line Items]
Preferred stock par value			0.001
Preferred stock issued price per share			$ 10
Proceeds from issuance of preferred stock			$ 100,000,000
Cash dividend rates in Year 1			$ 0.50
Cash dividend rates in Year 2			0.60
Cash dividend rates in Year 3			0.75
Cash dividend rates in Year 4 and thereafter			0.95
Paid-in-kind in Year 1			0.60
Paid-in-kind in Year 2			$ 0.70
Minimum percentage of original purchase price of shares required for automatic conversion of preferred stock			150.00%
Subsequent Event [Member] | TTIG [Member] | Series A-1 Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock voting shares issued			9,000,000
Subsequent Event [Member] | TTIG [Member] | Series A-2 Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred stock non-voting shares issued			1,000,000
Subsequent Event [Member] | TTIG [Member] | Series A Preferred Stock [Member]
Subsequent Event [Line Items]
Initial conversion rate			100.00%
Subsequent Event [Member] | GTB [Member]
Subsequent Event [Line Items]
Litigation settlement amount		$ 3,100,000
Subsequent Event [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility. borrowing capacity	$ 65,000,000						$ 60,000,000
Repayment of revolving credit facility	$ 23,750,000
Subsequent Event [Member] | Minimum [Member]
Subsequent Event [Line Items]
Aggregate replacement premium				$ 80,000,000
Subsequent Event [Member] | Minimum [Member] | TTIG [Member]
Subsequent Event [Line Items]
Gross proceeds from issuance of common stock			$ 250,000,000
Subsequent Event [Member] | Maximum [Member]
Subsequent Event [Line Items]
Total commission				$ 3,100,000