Heritage Insurance (HRTG) 10-Q 8 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 05, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	HRTG
Entity Registrant Name	HERITAGE INSURANCE HOLDINGS, INC.
Entity Central Index Key	0001598665
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Common Stock, Shares Outstanding		30,013,018

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Fixed maturities, available-for-sale, at fair value (amortized cost of $528,193 and $518,391)	$ 527,940	$ 509,649
Equity securities, at fair value (cost of $18,249 and $18,698)	17,375	16,456
Other investments	21,693	2,488
Total investments	567,008	528,593
Cash and cash equivalents	279,720	250,117
Restricted cash	12,257	12,253
Accrued investment income	4,618	4,468
Premiums receivable, net	55,096	57,000
Reinsurance recoverable on paid and unpaid claims	263,266	317,930
Prepaid reinsurance premiums	161,015	233,071
Income taxes receivable	365	35,586
Deferred policy acquisition costs, net	69,883	73,055
Property and equipment, net	21,317	17,998
Intangibles, net	74,757	76,850
Goodwill	152,459	152,459
Other assets	15,232	9,333
Total Assets	1,676,993	1,768,713
LIABILITIES AND STOCKHOLDERS' EQUITY
Unpaid losses and loss adjustment expenses	404,484	432,359
Unearned premiums	454,225	472,357
Reinsurance payable	114,263	166,975
Long-term debt, net	132,176	148,794
Deferred income tax	5,967	7,705
Advance premiums	27,892	20,000
Accrued compensation	7,752	9,226
Accounts payable and other liabilities	95,147	85,964
Total Liabilities	1,241,906	1,343,380
Commitments and contingencies (Note 17)
Stockholders’ Equity:
Common stock, $0.0001 par value, 50,000,000 shares authorized, 30,013,018 shares issued and 29,432,217 shares outstanding at March 31, 2019 and 30,083,559 shares issued and 29,477,756 shares outstanding at December 31, 2018	3	3
Additional paid-in capital	328,937	325,292
Accumulated other comprehensive loss	(564)	(6,527)
Treasury stock, at cost, 7,562,537 shares at March 31, 2019 and 7,214,797 shares at December 31, 2018	(94,196)	(89,185)
Retained earnings	200,907	195,750
Total Stockholders' Equity	435,087	425,333
Total Liabilities and Stockholders' Equity	$ 1,676,993	$ 1,768,713

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Fixed maturities, at amortized cost	$ 528,193	$ 518,391
Equity securities, cost	$ 18,249	$ 18,698
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	30,013,018	30,083,559
Common stock, shares outstanding	29,432,217	29,477,756
Treasury stock, shares	7,562,537	7,214,797

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Other Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
REVENUES:
Gross premiums written	$ 210,348	$ 204,366
Change in gross unearned premiums	18,242	22,797
Gross premiums earned	228,590	227,163
Ceded premiums	(118,899)	(121,055)
Net premiums earned	109,691	106,108
Net investment income	3,672	3,302
Net realized gains (losses)	1,024	(227)
Other revenue	3,874	2,843
Total revenues	118,261	112,026
EXPENSES:
Losses and loss adjustment expenses	62,139	53,091
Policy acquisition costs, net of ceding commission income of $12.9 million and $14.3 million	26,020	12,187
General and administrative expenses, net of ceding commission income of $4.3 million and $4.7 million	18,604	21,931
Total expenses	106,763	87,209
Operating income	11,498	24,817
Interest expense, net	2,117	4,820
Other non-operating (income)/loss, net	48
Income before income taxes	9,333	19,997
Provision for income taxes	2,369	5,168
Net income	6,964	14,829
OTHER COMPREHENSIVE INCOME
Change in net unrealized gains (losses) on investments	8,036	(6,478)
Reclassification adjustment for net realized investment losses	335	227
Income tax (expense) benefit related to items of other comprehensive income	(2,408)	1,823
Total comprehensive income	$ 12,927	$ 10,401
Weighted average shares outstanding
Basic	29,540,514	25,727,553
Diluted	29,544,563	26,732,019
Earnings per share
Basic	$ 0.24	$ 0.58
Diluted	$ 0.24	$ 0.55

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Operations and Other Comprehensive Income (Parenthetical) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Ceding commission income	$ 17,169	$ 18,993
Policy Acquisition Costs [Member]
Ceding commission income	12,900	14,300
General and Administrative Expenses [Member]
Ceding commission income	$ 4,300	$ 4,700

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Shares [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2017	$ 379,816	$ 3	$ 294,836	$ 175,226	$ (87,185)	$ (3,064)
Beginning Balance, Shares at Dec. 31, 2017		25,885,006
Cumulative effective of change in accounting principle (ASU 2016-01), net of tax at Dec. 31, 2017				(267)		267
Beginning balance as adjusted at Dec. 31, 2017	379,816	$ 3	294,836	174,959	(87,185)	(2,797)
Net unrealized change in investments, net of tax	(4,428)					(4,428)
Stock buy-back	$ (1,999)				(1,999)
Stock buy-back, Shares	(115,200)	(115,200)
Stock-based compensation	$ 1,306		1,306
Reclassification of income taxes upon early adoption of ASU 2018-02				424		(424)
Tax effect of warrant reclassification	970		970
Dividends declared on common stock	(1,601)			(1,601)
Net income	14,829			14,829
Ending balance at Mar. 31, 2018	388,893	$ 3	297,112	188,611	(89,184)	(7,649)
Ending balance, Shares at Mar. 31, 2018		25,769,806
Beginning Balance at Dec. 31, 2018	425,333	$ 3	325,292	195,750	(89,185)	(6,527)
Beginning Balance, Shares at Dec. 31, 2018		29,477,756
Net unrealized change in investments, net of tax	5,963					5,963
Restricted stock vested, net of surrendered shares	(118)		(118)
Restricted stock vested, net of surrendered shares, Shares		17,000
Stock-based compensation on vested restricted stock	1,345		1,345
Convertible Option debt extinguishment	(1,840)		(1,840)
Stock issued on convertible note conversion	4,210		4,210
Stock issued on convertible note conversion, Shares		285,201
Stock buy-back	$ (5,011)				(5,011)
Stock buy-back, Shares	(347,740)	(347,740)
Dividends declared on common stock	$ (1,807)			(1,807)
Tax rate change	48		48
Net income	6,964			6,964
Ending balance at Mar. 31, 2019	$ 435,087	$ 3	$ 328,937	$ 200,907	$ (94,196)	$ (564)
Ending balance, Shares at Mar. 31, 2019		29,432,217

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES
Net income	$ 6,964	$ 14,829
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock-based compensation	1,345	1,306
Bond amortization and accretion	1,229	1,792
Amortization of original issuance discount on debt	390	871
Depreciation and amortization	2,696	7,041
Net realized (gains) losses	(1,024)	227
Net loss from repurchase of debt	48
Deferred income taxes	(4,098)	(13,260)
Changes in operating assets and liabilities:
Accrued investment income	(150)	816
Premiums receivable, net	1,904	1,023
Prepaid reinsurance premiums	72,056	63,703
Reinsurance premiums receivable and recoverable	54,664	(196,466)
Income taxes receivable	35,221	19,815
Deferred policy acquisition costs, net	3,171	(12,184)
Other assets	(5,898)	(3,019)
Unpaid losses and loss adjustment expenses	(27,875)	77,652
Unearned premiums	(18,132)	(22,797)
Reinsurance payable	(52,712)	38,431
Accrued interest	127	3,217
Accrued compensation	(1,474)	(9,219)
Advance premiums	7,892	14,090
Income taxes payable	5,725
Other liabilities	3,253
Net cash provided by (used in) operating activities	85,322	(12,132)
INVESTING ACTIVITIES
Marketable securities sales	25,486	127,328
Marketable securities purchases	(37,203)	(71,498)
Proceeds from sales of equity securities	2,291
Purchase of equity securities	(1,617)
Limited partnership interest	(19,205)
Proceeds from sale of assets	71
Cost of property and equipment acquired	(3,994)	(83)
Net cash (used in) provided by investing activities	(34,171)	55,747
FINANCING ACTIVITIES
Repayment of term note	(11,875)
Mortgage loan payments	(70)	(68)
Repurchase of convertible notes	(2,869)
Purchase of treasury stock	(5,011)	(1,999)
Tax withholdings on share-based compensation awards	(118)
Dividends paid	(1,601)	(1,601)
Net cash used in financing activities	(21,544)	(3,668)
Increase in cash, cash equivalents, and restricted cash	29,607	39,947
Cash, cash equivalents and restricted cash, beginning of period	262,370	174,530
Cash, cash equivalents and restricted cash, end of period	291,977	214,477
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest paid	2,977	$ 5,406
Issuance of shares on conversion of convertible notes	$ 4,210

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Parenthetical) (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Statement Of Cash Flows [Abstract]
Cash and cash equivalents	$ 279,720	$ 250,117
Restricted cash	12,257	12,253
Total	$ 291,977	$ 262,370	$ 214,477	$ 174,530

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	NOTE 1. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The condensed consolidated financial statements include the accounts of the Heritage Insurance Holdings, Inc. (together with its subsidiaries, the “Company”). These statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain financial information that is normally included in annual financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. In the opinion of the Company’s management, all material intercompany transactions and balances have been eliminated and all adjustments consisting of normal recurring accruals which are, necessary for a fair statement of the financial condition and results of operations for the interim periods have been reflected. The accompanying interim consolidated financial statements and related footnotes should be read in conjunction with the Company’s consolidated financial statements and related footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 (the “ 2018 Form 10- Significant accounting policies Leases We lease office space as the lessor and tenant and have entered into various other lease agreements in conducting our business. We evaluate each lease agreement to determine whether the lease is an operating or financing lease and effective for the first quarter of 2019, we have established a right-of-use (“ROU”) asset and corresponding lease liability on the balance sheet. As described below under “Recently Adopted Accounting Pronouncements” we adopted the Financial Accounting Standards Update, or ASU, “Leases”, or “FASB 842” as of January 1, 2019. The Company did not recognize an opening adjustment to retained earnings as a result of the adoption of FASB 842. Refer to Note 5-Leases herein for further information. Reclassification We have reclassified certain amounts in the 2018 condensed consolidated balance sheet to confirm to our 2019 presentation. Recently Adopted Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases We adopted the guidance prospectively during the first quarter of 2019. As part of our adoption, we elected not to reassess historical lease classification, recognize short-term leases on our balance sheet, nor separate lease and non-lease components for our real estate leases. At implementation, we recorded approximately $2.8 million as right-of-use operating and financing Accounting Pronouncements Not Yet Adopted For information regarding accounting standards that the Company has not yet adopted, refer to our Annual Report on Form 10-K, filed on March 12, 2019, the section of Note 1 of the notes to the consolidated financial statements the “Accounting Pronouncement Not Yet Adopted”.

Investments

Investments	3 Months Ended
	Mar. 31, 2019
Investments Debt And Equity Securities [Abstract]
Investments	NOTE 2. INVESTMENTS Securities Available-for-Sale The following table details the difference between cost or adjusted/amortized cost and estimated fair value, by major investment category, at March 31, 2019 and December 31, 2018: March 31, 2019 Cost or Adjusted / Amortized Cost Gross Gains Gross Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities (1) $ 49,547 $ 81 $ 451 $ 49,177 States, municipalities and political subdivisions 65,988 440 151 66,277 Special revenue 244,841 1,463 1,479 244,825 Industrial and miscellaneous 163,514 943 951 163,506 Redeemable preferred stocks 4,303 5 153 4,155 $ 528,193 $ 2,932 $ 3,185 $ 527,940 December 31, 2018 Cost or Adjusted / Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities (1) $ 48,739 $ 40 $ 738 $ 48,041 States, municipalities and political subdivisions 60,028 46 785 59,289 Special revenue 249,026 210 3,881 245,355 Industrial and miscellaneous 155,678 81 3,302 152,457 Redeemable preferred stocks 4,920 — 413 4,507 $ 518,391 $ 377 $ 9,119 $ 509,649 (1) U.S. government and agency securities include pledged fixed maturity securities with an estimated fair value of $24 million and $31 million under the terms and condition of the advance agreement entered into with a financial institution as of March 31, 2019 and December 31, 2018, respectively. The Company is permitted to withdraw or exchange any portion of the pledged collateral over the minimum requirement at any time. The Company calculates the gain or loss realized on the sale of investments by comparing the sales price (fair value) to the cost or adjusted/amortized cost of the security sold. The Company determines the cost or adjusted/amortized cost of the security sold using the specific-identification method. The following tables detail the Company’s net realized gains (losses) by major investment category for the three months ended March 31, 2019 and 2018. 2019 2018 Gains (Losses) Fair Value at Sale Gains (Losses) Fair Value at Sale (In thousands) For the Three Months Ended March 31, Fixed maturity securities $ 5 $ 24,414 $ 87 $ 50,067 Equity securities — — 2 74 Total realized gains 5 24,414 89 50,141 Fixed maturity securities (67 ) 6,141 (218 ) 48,143 Equity securities (273 ) 513 (98 ) 2,167 Total realized losses (340 ) 6,654 (316 ) 50,310 Unrealized gains (losses) on equity securities (1) 1,359 — — — Net realized (losses) gains $ 1,024 $ 31,068 $ (227 ) $ 100,451 (1) For the three months ended March 31, 2018, the Company recognized $868,700 as unrealized losses on equity securities pursuant to ASC 2016-01, at the time of adoption the Company reported changes in the fair value of equity investments in Other revenue. The table below summarizes the Company’s fixed maturities at March 31, 2019 by contractual maturity periods. Actual results may differ as issuers may have the right to call or prepay obligations, with or without penalties, prior to the contractual maturity of those obligations. For the Three Months Ended March 31, 2019 Cost or Amortized Cost Percent of Total Fair Value Percent of Total Maturity dates: (In thousands) (In thousands) Due in one year or less $ 55,079 10 % $ 54,993 10 % Due after one year through five years 168,231 32 % 168,051 32 % Due after five years through ten years 138,520 26 % 138,978 26 % Due after ten years 166,363 32 % 165,918 32 % Total $ 528,193 100 % $ 527,940 100 % Equity Securities The following tables present realized gains and losses from securities included both sales of securities and unrealized gains losses included in net income as of March 31, 2019 and December 31, 2018 : March 31, 2019 March 31, 2018 (In thousands) Net gains (loss) recognized during the period on equity securities $ 1,086 $ (945 ) Less: Net losses (gains) recognized from equity securities sold 273 76 Unrealized gains (loss) recognized on equity securities still held at reporting date $ 1,359 $ (869 ) The following table summarizes the Company’s net investment income by major investment category for the three months ended March 31, 2019 and 2018, respectively: For the Three Months Ended March 31, 2019 2018 (In thousands) Fixed maturity securities $ 2,724 $ 2,945 Equity securities 309 307 Cash, cash equivalents and short-term investments 817 157 Other investments 342 259 Net investment income 4,192 3,668 Investment expenses 520 366 Net investment income, less investment expenses $ 3,672 $ 3,302 As of March 31, 2019, the Company evaluated its fixed maturity securities for impairment and determined that none of its investments in fixed maturity securities that reflected an unrealized loss position were other-than-temporarily impaired. The issuers of the fixed maturity securities in which the Company invests continue to make interest payments on a timely basis and have not suffered any credit rating reductions. The Company does not intend to sell, nor is it likely that it would be required to sell, the fixed maturity securities before the Company recovers its amortized cost basis. Limited Partnerships The Company has interests in limited partnerships that are not registered or readily tradable on a securities exchange. The investments are private equity funds managed by general partners who make financial policy and operational decisions. The Company is not the primary beneficiary and does not consolidate these partnerships. The Company carries these investments at fair value which is based on the net value of the funds. As of March 31, 2019, the estimated fair value of our investments in the limited partnership interests was $21.7 million. The general partner's objective is to achieve capital appreciation through investments in marketable securities and broad markets, preferred stock, industry-focused and fixed income exchange-traded funds (ETFs). During the first quarter of 2019 and 2018, the Company received total cash distributions of $259,800 and $121,170, respectively, representing return of capital on its investments. The Company incurred no allocated costs in the first quarter of 2019 and $5,000 for the comparable period of 2018. The following tables present an aging of our unrealized investment losses by investment class as of March 31, 2019 and December 31, 2018: Less Than Twelve Months Twelve Months or More March 31, 2019 Number of Securities Gross Unrealized Losses Fair Value Number of Securities Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities 9 $ 49 $ 2,635 59 $ 402 $ 19,792 States, municipalities and political subdivisions 1 1 523 35 150 29,693 Industrial and miscellaneous 54 109 16,848 235 842 70,928 Special revenue 23 82 13,985 318 1,397 96,391 Redeemable preferred stocks 25 24 1,368 17 129 2,215 Total fixed maturity securities 112 $ 265 $ 35,358 664 $ 2,920 $ 219,019 Less Than Twelve Months Twelve Months or More December 31, 2018 Number Gross Losses Fair Number of Securities Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities 17 $ 129 $ 10,485 66 $ 609 $ 20,488 States, municipalities and political subdivisions 13 103 12,864 42 682 39,979 Industrial and miscellaneous 214 1,479 70,156 232 1,822 70,375 Special revenue 105 1,260 76,335 323 2,621 108,319 Redeemable preferred stocks 55 193 2,541 27 221 1,965 Total fixed maturity securities 404 $ 3,164 $ 172,381 690 $ 5,955 $ 241,126 The Company is required to maintain assets on deposit with various regulatory authorities to support its insurance and reinsurance operations.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	NOTE 3. FAIR VALUE OF FINANCIAL INSTRUMENTS For the Company’s investments in U.S. government securities that do not have prices in active markets, agency securities, state and municipal governments, and corporate bonds, the Company obtains the fair values from its third-party valuation service and we evaluate the relevant inputs, assumptions, methodologies and conclusions associated with such valuations. The valuation service calculates prices for the Company’s investments in the aforementioned security types on a month-end basis by using several matrix-pricing methodologies that incorporate inputs from various sources. The model the valuation service uses to price U.S. government securities and securities of states and municipalities incorporates inputs from active market makers and inter-dealer brokers. To price corporate bonds and agency securities, the valuation service calculates non-call yield spreads on all issuers, uses option-adjusted yield spreads to account for any early redemption features, then adds final spreads to the U.S. Treasury curve as of quarter end. The inputs the valuation service uses in their calculations are not quoted prices in active markets, but are observable inputs, and therefore represent Level 2 inputs. The following table presents information about the Company’s assets measured at fair value on a recurring basis. The Company assesses the levels for the investments at each measurement date, and transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Company’s accounting policy regarding the recognitions of transfers between levels of the fair value hierarchy. As of March 31, 2019, and December 31, 2018, there were no transfers in or out of Level 1, 2, and 3. The Company also invests small amounts in equity securities, real estate and private limited partnerships. This investment class has the potential for higher returns but also the potential for higher degrees of risk, including less than stable rates of returns and may provide less liquidity. Investments excluded from the fair value hierarchy Limited partnerships carried at fair value, which do not have readily determinable fair value, use NAV (net asset value) provided by the investees and are excluded from the fair value hierarchy. The Company may, as of the last day of each calendar quarter, upon at least 65 days’ prior written notice, withdrawal all or any portion of the balance in its investment. There is a 3 percent withdrawal fee if made during the first year of investment. March 31, 2019 Total Level 1 Level 2 Level 3 Invested Assets: (In thousands) Fixed maturity securities, available-for-sale: U.S. government and agency securities $ 49,177 $ 359 $ 48,818 $ — States, municipalities and political subdivisions 66,277 — 66,277 — Special revenue 244,825 — 244,825 — Industrial and miscellaneous 163,506 — 163,506 — Redeemable preferred stocks 4,155 4,155 — — Total fixed maturity securities 527,940 4,514 523,426 — Equity securities Common stock 3,825 3,825 — — Non-redeemable preferred stock 13,550 13,550 — — Total equity securities 17,375 17,375 — — Total investments 545,315 21,889 523,426 — Investments reported at NAV 21,693 — — — Total $ 567,008 $ 21,889 $ 523,426 $ — December 31, 2018 Total Level 1 Level 2 Level 3 Invested Assets: (in thousands) Fixed maturity securities, available-for-sale: U.S. government and agency securities $ 48,041 $ 354 $ 47,687 $ — States, municipalities and political subdivisions 59,289 — 59,289 — Special revenue 245,355 — 245,355 — Industrial and miscellaneous 152,457 — 152,457 — Redeemable preferred stocks 4,507 4,507 — — Total fixed maturity securities 509,649 4,861 504,788 — Equity securities Common stock 3,686 3,686 — — Non-redeemable preferred stock 12,770 12,770 — — Total equity securities 16,456 16,456 — — Total investments 526,105 21,317 504,788 — Investments reported at NAV 2,488 — — — Total $ 528,593 $ 21,317 $ 504,788 $ — At December 31, 2018, the Company recorded the $2.4 million of limited partnership investments at net asset value and therefore, excluded from the fair value hierarchy. Non-recurring fair value measurements Assets and liabilities that are measured at fair value on a non-recurring basis include intangible assets and goodwill which are recognized at fair value during the period in which an acquisition is completed, from updated estimates and assumptions during the measurement period, or when they are considered to be impaired. These non-recurring fair value measurements, primarily for intangible assets acquired, were based on Level 3 unobservable inputs. For the three months ended March 31, 2019 and 2018, these non-recurring fair values inputs consisted of brand, agent relationships, renewal rights, customer relations, trade names, value of business acquired, non-compete and goodwill. To evaluate such assets for a potential impairment, we determine the fair value of the goodwill and intangible assets using a combination of a discounted cash flow approach and market approaches, which contain significant unobservable inputs and therefore is considered a Level 3 fair value measurement. The unobservable inputs in the analysis generally include future cash flow projections and a discount rate. There were no non-recurring fair value adjustments to intangible assets and goodwill during the first quarter of 2019 and 2018. We record any measurement period adjustments to the fair value of assets acquired and liabilities assumed, with the corresponding offset to goodwill.

Other Comprehensive Income

Other Comprehensive Income	3 Months Ended
	Mar. 31, 2019
Comprehensive Income Net Of Tax [Abstract]
Other Comprehensive Income	NOTE 4. OTHER COMPREHENSIVE INCOME Other comprehensive income (loss) was $6.0 million and $(4.4) million for the three months ended March 31, 2019 and 2018, respectively. The difference between net income as reported and comprehensive income was due to the changes in unrealized gains and losses, net of taxes on fixed maturities securities. For the Three Months Ended March 31, 2019 2018 Pre-tax Tax After-tax Pre-tax Tax After-tax (In thousands) Other comprehensive income Change in unrealized losses on investments, net $ 8,036 $ (2,323 ) $ 5,713 $ (6,478 ) $ 1,871 $ (4,607 ) Reclassification adjustment of realized losses (gains) included in net income 335 (85 ) 250 227 (48 ) 179 Effect on other comprehensive income $ 8,371 $ (2,408 ) $ 5,963 $ (6,251 ) $ 1,823 $ (4,428 )

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	NOTE 5. LEASES The Company has entered into operating and financing leases primarily for real estate and vehicles. The Company will determine whether an arrangement is a lease at inception of the agreement. The operating leases have terms of one to ten years, and often include one or more options to renew. These renewal terms can extend the lease term from three to ten years, and are included in the lease term when it is reasonably certain that the Company will exercise the option. The Company considers these options in determining the lease term used in establishing our right-of-use asset and lease obligations. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. Because the rate implicit in each operating lease in not readily determinable, the Company uses its incremental borrowing rate to determine present value of the lease payments. The Company used the implicit rates within the finance leases. Components of our lease costs for the three months ended March 31, 2019 are as follows (in thousands): March 31, 2019 Amortization of ROU assets - Finance leases $ 23 Interest on lease liabilities - Finance leases 7 Variable lease cost (cost excluded from lease payments) 111 Operating lease cost (cost resulting from lease payments) 176 Total lease cost $ 317 New ROU assets - Operating leases $ 6,955 Supplemental cash flow information and non-cash activity related to our operating and financing leases as of March 31, 2019 are as follows (in thousands): March 31, 2019 Finance lease - Operating cash flows $ 8 Finance lease - Financing cash flows $ 17 Operating lease - Operating cash flows (fixed payments) $ 171 Operating lease - Operating cash flows (liability reduction) $ 141 Supplemental balance sheet information related to our operating and financing leases as of March 31, 2019 are as follows (in thousands): Balance Sheet Classification March 31, 2019 Right-of-use assets (1) Other assets $ 7,129 Lease Liability Accounts payable and other liabilities $ (8,581 ) (1) Right-of-use asset is reduced by $1.3 million in lease incentives received in March 2019, for the new February 1, 2019 lease agreement. Weighted-average remaining lease term and discount rate for our operating and financing leases as of March 31, 2019 are as follows: March 31, 2019 Weighted average lease term - Finance leases 4.12 yrs. Weighted average lease term - Operating leases 8.48 yrs. Weighted average discount rate - Finance leases 8.1 % Weighted average discount rate - Operating leases 5.3 % Maturities of lease liabilities by fiscal year for our operating and financing leases as of March 31, 2019 are as follows (in thousands): March 31, 2019 2019 remaining $ 879 2020 1,437 2021 1,405 2022 1,439 2023 1,254 2024 and thereafter 4,449 Total lease payments 10,863 Less: imputed interest (2,282 ) Present value of lease liabilities $ 8,581

Property and Equipment, Net

Property and Equipment, Net	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Property and Equipment, Net	NOTE 6. PROPERTY AND EQUIPMENT, NET Property and equipment, net consisted of the following at March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Land $ 2,582 $ 2,582 Building 11,390 11,390 Computer hardware and software 5,163 4,901 Office furniture and equipment 1,855 1,397 Tenant and leasehold improvements 7,717 4,477 Vehicle fleet 783 854 Total, at cost 29,490 25,601 Less: accumulated depreciation and amortization (8,173 ) (7,603 ) Property and equipment, net $ 21,317 $ 17,998 Depreciation and amortization expense for property and equipment was $571,000 and $414,000 for the three months ended March 31, 2019 and 2018, respectively. The Company’s real estate consists of 15 acres of land and five buildings with a gross area of 229,000 square feet and a parking garage.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	NOTE 7. GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill and Intangible Assets At March 31, 2019 and December 31, 2018 goodwill was $152.5 million and intangible assets were $74.8 million and $76.8 million, respectively. The Company has determined the useful life of the other intangible assets to range between 2.5-15 years. The Company has recorded $1.3 million relating to insurance licenses and classified as an indefinite lived intangible which is subject to annual impairment testing concurrent with goodwill. Goodwill (In thousands) Balance as of December 31, 2018 $ 152,459 Goodwill acquired — Impairment — Balance as of March 31, 2019 $ 152,459 Other Intangible Assets Our intangible assets resulted primarily from the acquisitions of Zephyr Acquisition Company and NBIC Holdings, Inc. and consist of brand, agent relationships, renewal rights, customer relations, trade names, non-competes and insurance licenses. Finite-lived intangibles assets are amortized over their useful lives from one to fifteen years. Amortization expense of our intangible assets was $2.1 million and $6.6 million for the three months ended March 31, 2019 and March 31, 2018, respectively. No impairment in the value of amortizing or non-amortizing intangible assets was recognized during the three months ended March 31, 2019 or 2018. Estimated annual pretax amortization of intangible assets for each of the next five years and thereafter is as follows (in thousands): Year Amount 2019 remaining $ 6,115 2020 $ 6,365 2021 $ 6,351 2022 $ 6,351 2023 $ 6,351 2024 $ 6,351 Thereafter $ 35,558 $ 73,442 (1) Excludes insurance licenses valued at $1.3 million and classified as an indefinite lived intangible which is subject to annual impairment testing and not amortized.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 8. EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per share (“EPS”) for the periods indicated. For the Three Months Ended March 31, 2019 2018 Basic earnings per share: Net income attributable to common stockholders (000's) $ 6,964 $ 14,829 Weighted average shares outstanding 29,540,514 25,727,553 Basic earnings per share: $ 0.24 $ 0.58 Diluted earnings per share: Net income attributable to common stockholders (000's) $ 6,964 $ 14,829 Weighted average shares outstanding 29,540,514 25,727,553 Weighted average dilutive shares 4,049 1,004,466 Total weighted average dilutive shares 29,544,563 26,732,019 Diluted earnings per share: $ 0.24 $ 0.55

Deferred Reinsurance Ceding Com

Deferred Reinsurance Ceding Commission	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Deferred Reinsurance Ceding Commission	NOTE 9. DEFERRED REINSURANCE CEDING COMMISSION The Company defers reinsurance ceding commission income, which is amortized over the effective period of the related insurance policies. For the three months ended March 31, 2019 and 2018, the Company allocated ceding commission income of $12.9 million and $14.3 million to policy acquisition costs and $4.3 million and $4.7 million to general and administrative expense, respectively. The table below depicts the activity with regard to deferred reinsurance ceding commission during the three-month periods ended March 31, 2019 and 2018. For the Three Months Ended March 31, 2019 2018 (In thousands) Beginning balance of deferred ceding commission income $ 44,996 $ 51,277 Ceding commission deferred 12,647 15,557 Less: ceding commission earned (17,169 ) (18,993 ) Ending balance of deferred ceding commission income $ 40,474 $ 47,841

Deferred Policy Acquisition Cos

Deferred Policy Acquisition Costs	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Deferred Policy Acquisition Costs	NOTE 10. DEFERRED POLICY ACQUISITION COSTS The Company defers certain costs in connection with written policies, called deferred policy acquisition costs (“DPAC”), which are amortized over the effective period of the related insurance policies. The Company anticipates that its DPAC costs will be fully recoverable in the near term. The table below depicts the activity with regard to DPAC during the three-month periods ended March 31, 2019 and 2018. For the Three Months Ended March 31, 2019 2018 (In thousands) Beginning Balance $ 73,055 $ 41,678 Policy acquisition costs deferred 35,965 24,371 Amortization (39,137 ) (12,187 ) Ending Balance $ 69,883 $ 53,862

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 11. INCOME TAXES During the three months ended March 31, 2019 and 2018, the Company recorded $2.4 million and $5.2 million, respectively, of income tax expense which corresponds to an estimated annual effective tax rate of 25.4% and 25.8%, respectively. Effective tax rates are dependent upon components of pre-tax earnings and the related tax effects. The effective tax rate can fluctuate throughout the year as estimates used in the tax provision for the first quarter are updated as more information becomes available throughout the year. The table below summarizes the significant components of our net deferred tax assets (liabilities): March 31, 2019 December 31, 2018 Deferred tax assets: (In thousands) Unearned premiums $ 15,264 $ 12,090 Unearned commission 9,657 10,733 Net operating loss 109 109 Tax-related discount on loss reserve 2,418 2,329 Unrealized loss 431 2,631 Stock-based compensation 528 297 Accrued expenses 2,050 2,321 Other 1,870 1,443 Total deferred tax asset 32,327 31,953 Deferred tax liabilities: Deferred acquisition costs 16,735 17,494 Prepaid expenses 65 112 Property and equipment 533 664 Note discount 536 710 Basis in purchased investments 149 163 Basis in purchased intangibles 18,509 18,982 Other 1,767 1,533 Total deferred tax liabilities 38,294 39,658 Net deferred tax liability $ (5,967 ) $ (7,705 ) In April 2019, the Company was notified by the tax authority that the 2015, 2016 and 2017 tax years federal income tax returns will be examined. The Company does not believe the examination results will have an adverse impact on the condensed consolidated financial statements. At March 31, 2019 and December 31, 2018, we had no significant uncertain tax positions or unrecognized tax benefits that, if recognized, would impact the effective income tax rate.

Reinsurance

Reinsurance	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Reinsurance	NOTE 12. REINSURANCE The Company’s reinsurance program is designed, utilizing the Company’s risk management methodology, to address its exposure to catastrophes or large non-catastrophic losses. The Company’s program provides reinsurance protection for catastrophes including hurricanes, tropical storms, tornadoes and winter storms. The Company’s reinsurance agreements are part of its catastrophe management strategy, which is intended to provide its stockholders an acceptable return on the risks assumed in its property business, and to reduce variability of earnings, while providing protection to the Company’s policyholders. We purchase significant reinsurance from third party reinsurers, including the Florida Hurricane Catastrophe Fund, and sponsor catastrophe bonds issued by Citrus Re. Our insurance affiliates may also purchase reinsurance from our captive reinsurer, Osprey Re Ltd. The catastrophe reinsurance may be on an excess of loss or quota share basis. We also purchase reinsurance for non-catastrophe losses on a quota share, per risk or facultative basis. Purchasing a sufficient amount of reinsurance to consider catastrophic losses from single or multiple events or significant non-catastrophe losses is an important part of our risk strategy, and premiums paid (or ceded) to reinsurers is one of our largest cost components. Reinsurance involves transferring, or “ceding”, a portion of the risk exposure on policies we write to another insurer, known as a reinsurer. To the extent that our reinsurers are unable to meet the obligations they assume under our reinsurance agreements, we remain liable for the entire insured loss. Our reinsurance agreements are prospective contracts. We record an asset, prepaid reinsurance premiums, and a liability, reinsurance payable, for the entire contract amount upon commencement of our new reinsurance agreements. We generally amortize our catastrophe reinsurance premiums over the 12-month contract period on a straight-line basis, which is June 1 through May 31. Our quota share reinsurance is amortized over the 12-month contract period and may be purchased on a calendar or fiscal year basis. In the event that we incur losses and loss adjustment expenses recoverable under our reinsurance program, we record amounts recoverable from our reinsurers on paid losses plus an estimate of amounts recoverable on unpaid losses. The estimate of amounts recoverable on unpaid losses is a function of our liability for unpaid losses associated with the reinsured policies; therefore, the amount changes in conjunction with any changes to our estimate of unpaid losses. As a result, a reasonable possibility exists that an estimated recovery may change significantly in the near term from the amounts included in our consolidated financial statements. Our insurance regulators require all insurance companies, like us, to have a certain amount of capital and reinsurance coverage in order to cover losses and loss adjustment expenses upon the occurrence of a catastrophic event. Our 2018-2019 reinsurance program provides reinsurance in excess of our state regulator requirements, which are based on the probable maximum loss that we would incur from an individual catastrophic event estimated to occur once in every 100 years based on our portfolio of insured risks. The nature, severity and location of the event giving rise to such a probable maximum loss differs for each insurer depending on the insurer’s portfolio of insured risks, including, among other things, the geographic concentration of insured value within such portfolio. As a result, a particular catastrophic event could be a one-in-100-year loss event for one insurance company while having a greater or lesser probability of occurrence for another insurance company. We also purchase reinsurance coverage to protect against the potential for multiple catastrophic events occurring in the same year. We share portions of our reinsurance program coverage among our insurance company affiliates. The Company’s reinsurance arrangements had the following effect on certain items in the condensed consolidated statement of income for the three months ended March 31, 2019 and 2018: For the Three Months Ended March 31, 2019 2018 (In thousands) Premium written: Direct $ 210,348 $ 204,366 Ceded (46,842 ) (57,350 ) Net $ 163,506 $ 147,016 Premiums earned: Direct 228,590 $ 227,163 Ceded (118,899 ) (121,055 ) Net $ 109,691 $ 106,108 Loss and Loss Adjustment Expenses Direct $ 112,176 $ 335,729 Ceded (50,037 ) (282,638 ) Net $ 62,139 $ 53,091

Reserve For Unpaid Losses

Reserve For Unpaid Losses	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Reserve for Unpaid Losses	NOTE 13. RESERVE FOR UNPAID LOSSES The Company determines the reserve for unpaid losses on an individual-case basis for all incidents reported. The liability also includes amounts which are commonly referred to as incurred but not reported, or “IBNR”, claims as of the balance sheet date. The table below summarizes the activity related to the Company’s reserve for unpaid losses: For the Three Months Ended March 31, 2019 2018 (In thousands) Balance, beginning of period $ 432,359 $ 470,083 Less: reinsurance recoverable on unpaid losses 250,507 315,353 Net balance, beginning of period 181,852 154,730 Incurred related to: Current year 62,725 51,361 Prior years (586 ) 1,730 Total incurred 62,139 53,091 Paid related to: Current year 8,362 (1,252 ) Prior years 45,616 46,737 Total paid 53,978 45,485 Net balance, end of period 190,013 162,336 Plus: reinsurance recoverable on unpaid losses 214,471 385,399 Balance, end of period $ 404,484 $ 547,735 As of March 31, 2019, we reported $190.0 million in unpaid losses and loss adjustment expenses, net of reinsurance which included $143.1 million attributable to IBNR net of reinsurance recoverable, or 75% of net reserves for unpaid losses and loss adjustment expenses. The Company’s losses incurred for the three months ended March 31, 2019 and 2018 reflect favorable development of $0.6 million and unfavorable development of $1.7 million, respectively, associated with management’s best estimate of the actuarial loss and LAE reserves with consideration given to Company specific historical loss experience. While a portion of the 2018 development includes additional retention for hurricane losses, the majority of the 2018 loss development related to personal lines litigated and AOB claims from 2016 and 2017 accident years.

Long-Term Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	Convertible Senior Notes In August 2017 and September 2017, we issued in aggregate $136.8 million of 5.875% Convertible Senior Notes (“Convertible Notes”) maturing on August 1, 2037, unless earlier repurchased, redeemed or converted. Interest is payable semi-annually in arrears, on February 1, and August 1 of each year, commencing in 2018. As of March 31, 2019, we have $20.8 million Convertible Notes outstanding, net of issuance and debt discount costs in aggregate of approximately, $2.6 million. For the first quarters of 2019 and 2018, the Company made interest payments of approximately $1.5 million and $3.7 million, respectively on the Convertible Notes. Debt Extinguishment On February 19, 2019, the Company reacquired $5.8 million of its outstanding Convertible Notes, payment was made in cash of approximately $2.9 million and issuance of 285,201 shares of the Company’s common stock valued at $4.2 million. The repurchase resulted in a $48,000 non-operating loss. Senior Secured Credit Facility In December 2018, the Company entered in to a five-year, $125 million credit agreement (the “Credit Agreement”) with a syndicate of lenders consisting of $75 million senior secured term loan facility (the “Term Loan Facility”) and a $50.0 million senior secured revolving credit facility (the “Revolving Credit Facility” and together with the Term Loan Facility, the “Credit Facilities”). Term Loan Facility: The principal amount of the Term Loan Facility amortizes in quarterly installments, beginning with the close of the fiscal quarter ending March 31, 2019, in an amount equal to $1.9 million per quarter, with the remaining balance payable at maturity. As of December 31, 2018, there was $75.0 million in aggregate principal outstanding on the Term Loan Facility. As of March 31, 2019, the balance of the term loan was $73.1 million. For the three months ended March 31, 2019, the Company made interest payments of approximately $1.1 million on the term loan. Revolving Credit Facility : The Revolving Credit Facility allows for borrowings of up to $50.0 million inclusive of a $5.0 million sublimit for the issuance of letters of credit and a $10.0 million sublimit for swingline loans. As of March 31, 2019, the Company had $10.0 million of borrowings and no letters of credit outstanding under the Revolving Credit Facility. For the three months ended March 31, 2019, the Company made interest payments of approximately $251,700 under the credit facility. Mortgage Loan In October 2017, the Company and its subsidiary, Skye Lane Properties LLC, jointly obtained a commercial real estate mortgage loan in the amount of $12.7 million, bearing interest of 4.95% per annum and expiring on October 30, 2027. On October 30, 2022, the interest rate shall adjust to an interest rate equal to the annualized interest rate of the United States 5-year Treasury Notes as reported by Federal Reserve on a weekly average basis plus 3.10%. The Company makes monthly principal and interest payments against the loan. For each of the first quarters of 2019 and 2018, the Company made principal and interest payments of approximately $223,200 on the mortgage loan. FHLB Loan Agreements In November 2018, a subsidiary of the Company received a fixed interest rate 3.094% cash loan of $19.2 million from the Federal Home Loan Bank (“FHLB”) Atlanta. In connection with the agreement, the subsidiary became a member of FHLB. Membership in the FHLB required an investment in FHLB’s common stock which was purchased in December 2018 and valued at $1.4 million. Additionally, the transaction required securities be pledged as collateral. As of March 31, 2019, the fair value of the collateralized securities was $24.2 million and the equity investment in FHLB common stock was $1.4 million. As of March 31, 2019, the Company made quarterly interest payments of approximately $148,500 per the terms of the agreement. The following table summarizes the Company’s long-term debt as of March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Convertible debt $ 23,413 $ 29,163 Mortgage loan 12,324 12,394 Term loan facility 73,125 75,000 Revolving credit facility 10,000 20,000 FHLB loan agreement 19,200 19,200 Total principal amount $ 138,062 $ 155,757 Less: unamortized discount and issuance costs $ 5,886 $ 6,963 Total long-term debt $ 132,176 $ 148,794 As of the date of this report, we were in compliance with the applicable terms of all our covenants and other requirements under the Revolving agreement, Term Note, Convertible Debt, cash borrowings and other loans. Our ability to secure future debt financing depend, in part, on our ability to remain in such compliance. As long as there is no default or an event of default exist we are allowed to payout dividends in an aggregate amount not to exceed $10.0 million in any fiscal year. The schedule of principal payments on long-term debt is as follows: Year Amount (In thousands) 2019 remaining $ 5,832 2020 7,790 2021 7,806 2022 7,822 2023 74,589 Thereafter 34,223 Total $ 138,062

Accounts Payable and Other Liab

Accounts Payable and Other Liabilities	3 Months Ended
	Mar. 31, 2019
Other Liabilities Disclosure [Abstract]
Accounts Payable and Other Liabilities	NOTE 15. ACCOUNTS PAYABLE AND OTHER LIABILITIES Accounts payable and other liabilities consist of the following as of March 31, 2019 and December 31, 2018: Description March 31, 2019 December 31, 2018 (In thousands) Deferred ceding commission $ 40,474 $ 44,996 Outstanding claim checks 15,624 15,360 Accounts payable and other payables 11,051 8,379 Lease obligations 8,581 — Accrued interest and issuance costs 697 1,285 Accrued dividends 1,807 1,589 Premium tax 406 2,241 Current income taxes 5,725 — Other liabilities — 460 Commission payables $ 10,782 11,654 Total other liabilities $ 95,147 $ 85,964

Statutory Accounting and Regula

Statutory Accounting and Regulations	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Statutory Accounting and Regulations	NOTE 16. STATUTORY ACCOUNTING AND REGULATIONS State laws and regulations, as well as national regulatory agency requirements, govern the operations of all insurers such as our insurance subsidiaries. The various laws and regulations require that insurers maintain minimum amounts of statutory surplus and risk-based capital, restrict insurers’ ability to pay dividends, restrict the allowable investment types and investment mixes, and subject the Company’s insurers to assessments. The Company’s insurance subsidiaries must maintain capital and surplus ratios or balances as determined by the regulatory authority of the states in which they are domiciled. Heritage P&C is required to maintain capital and surplus equal to the greater of $15 million or 10% of their respective liabilities. Zephyr is required to maintain a deposit of $750,000 in a federally insured financial institution. NBIC is required to maintain capital and surplus of $3.0 million. The combined statutory surplus for Heritage P&C, Zephyr and NBIC was $366.6 million for the three months ended March 31, 2019. The combined statutory surplus for Heritage P&C, Zephyr and NBIC was $376.3 million at December 31, 2018. State law also requires the Company’s insurance subsidiaries to adhere to prescribed premium-to-capital surplus ratios, with which the Company is in compliance. At March 31, 2019, our insurance subsidiaries met the financial and regulatory requirements of the states in which they do business.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 17. COMMITMENTS AND CONTINGENCIES The Company is involved in claims-related legal actions arising in the ordinary course of business. The Company accrues amounts resulting from claims-related legal actions in unpaid losses and loss adjustment expenses during the period that it determines an unfavorable outcome becomes probable and it can estimate the amounts. Management makes revisions to its estimates based on its analysis of subsequent information that the Company receives regarding various factors, including: (i) per claim information; (ii) company and industry historical loss experience; (iii) judicial decisions and legal developments in the awarding of damages; and (iv) trends in general economic conditions, including the effects of inflation. When determinable, the Company discloses the range of possible losses in excess of those accrued and for reasonably possible losses.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 18. RELATED PARTY TRANSACTIONS The Company has been party to various related party transactions involving certain of its officers, directors and significant stockholders as set forth below. The Company has entered into each of these arrangements without obligation to continue its effect in the future and the associated expense was immaterial to its results of operations or financial position as of March 31, 2019 and 2018. • In January 2017, the Company entered into a consulting agreement with Mrs. Shannon Lucas, the wife of the Chairman and CEO, in which she agreed to provide consulting services related to the Company’s catastrophe reinsurance and risk management program at a rate of $400 per hour. The consulting agreement has no specific term and either party may terminate the agreement upon providing written notice. Additionally, she serves as a director of Heritage P&C with an annual compensation of $150,000. For the three months ended March 31, 2019 and 2018 the Company paid consulting fees to Ms. Lucas of approximately $102,800 and $171,000, respectively

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2019
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	NOTE 19. EMPLOYEE BENEFIT PLANS The Company provides a 401(k) plan for substantially all employees. The Company provides a matching contribution of 100% on the first 3% of employees’ contribution and 50% on the next 2% of the employees’ contribution to the plan. The maximum match is 4%. For the three-month periods ended March 31, 2019 and 2018, the contributions made to the plan on behalf of the participating employees were approximately $255,700 and $394,200, respectively. The Company provides for its employees a partially self-insured healthcare plan and benefits. For the three months ended March 31, 2019 and 2018, incurred medical premium costs amounted to an aggregate of $841,400 and $853,000, respectively. An additional liability of approximately $303,000 was recorded for unpaid claims as of March 31, 2019. A stop loss reinsurance policy caps the maximum loss that could be incurred by the Company under the self-insured plan. The Company’s stop loss coverage per employee is $150,000 for which any excess cost would be covered by the reinsurer subject to an aggregate limit for losses in excess of $1.5 million which would provide up to $1.0 million of coverage. Any excess of the $1.5 million retention and the $1 million of aggregate coverage would be borne by the Company. The aggregate stop loss commences once our expenses exceed 125% of the annual aggregate expected claims.

Equity

Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Equity	NOTE 20. EQUITY The total amount of authorized capital stock consists of 50,000,000 shares of common stock and 5,000,000 shares of preferred stock. As of March 31, 2019, the Company had 29,432,217 shares of common stock outstanding, 7,562,537 treasury shares of common stock and 580,801 unvested shares of restricted common stock issued reflecting total paid-in capital of $328.9 million as of such date. As more fully disclosed in our audited consolidated financial statements for the year ended December 31, 2018, there were, as of December 31, 2018, 29,477,756 shares of common stock outstanding, 7,214,797 treasury shares of common stock and 605,801 unvested shares of restricted common stock, representing $325.3 million of additional paid-in capital. Common Stock Holders of common stock are entitled to one vote for each share held on all matters subject to a vote of stockholders, subject to the rights of holders of any outstanding preferred stock. Accordingly, holders of a majority of the shares of common stock entitled to vote in any election of directors may elect all of the directors standing for election, subject to the rights of holders of any outstanding preferred stock. Holders of common stock will be entitled to receive ratably any dividends that the board of directors may declare out of funds legally available therefor, subject to any preferential dividend rights of outstanding preferred stock. Upon the Company’s liquidation, dissolution or winding up, the holders of common stock will be entitled to receive ratably its net assets available after the payment of all debts and other liabilities and subject to the prior rights of holders of any outstanding preferred stock. Holders of common stock have no preemptive, subscription, redemption or conversion rights. There are no redemption or sinking fund provisions applicable to the common stock. All outstanding shares of the Company’s capital stock are fully paid and nonassessable. Stock Repurchase Program On August 1, 2018, the Company announced that its Board of Directors authorized a stock repurchase program authorizing the Company to repurchase up to $50 million of its common stock through December 31, 2020 under our current Rule 10b5-1 trading plan, which allows the Company to purchase shares below a predetermined price per share. During the first quarter of 2019, the Company purchased 347,740 shares of its common stock for $5.0 million. At March 31, 2019, the Company has the capacity to repurchase $45.0 million of its common shares until December 2020. During the first quarter of 2018, the Company repurchased 115,200 shares of its common stock for $2.0 million. Dividends On February 25, 2019, the Company’s Board of Directors declared a $0.06 per share quarterly dividend payable on April 3, 2019, to shareholders of record as of March 15, 2019. The declaration and payment of any future dividends will be subject to the discretion of the Board of Directors and will depend on a variety of factors including the Company’s financial condition and results of operations.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	NOTE 21. STOCK-BASED COMPENSATION Restricted Stock The Company has adopted the Heritage Insurance Holdings, Inc., Omnibus Incentive Plan (the “Plan”) effective on May 22, 2014. The Plan authorized 2,981,737 shares of common stock for issuance under the Plan for future grants. As of December 31, 2018, all unexercised shares have been forfeited. At March 31, 2019 there were 1,321,398 shares available for grant under the Plan. The Company recognizes compensation expense under ASC 718 for its stock-based payments based on the fair value of the awards. In 2018, the Board of Directors granted 155,801 restricted shares vesting over three to five years, to the Company’s executives and other key employees. No restricted stock was granted during quarter ended March 31, 2019. The Company grants stock options at exercise prices equal to the fair market value of the Company’s stock on the dates the options are granted. The options have a maximum term of ten years from the date of grant and vest primarily in equal annual installments over a range of one to five-year periods following the date of grant for employee options. If a participant’s employment relationship ends, the participant’s vested awards will remain exercisable for the shorter of a period of 30 days or the period ending on the latest date on which such award could have been exercisable. The fair value of each option grant is separately estimated for each grant date. The fair value of each option is amortized into compensation expense on a straight-line basis between the grant date for the award and each vesting date. The Company estimates the fair value of all stock option awards as of the date of the grant by applying the Black-Scholes-Merton multiple-option pricing valuation model. The application of this valuation model involves assumptions that are judgmental and highly sensitive in the determination of compensation expense. The Company has also granted shares of its common stock subject to certain restrictions under the Plan. Restricted stock awards granted to employees vest in equal installments generally over a five-year period from the grant date subject to the recipient’s continued employment. The fair value of restricted stock awards is estimated by the market price at the date of grant and amortized on a straight-line basis to expense over the period of vesting. Recipients of restricted stock awards have the right to receive dividends. Restricted stock activity for the quarter ended March 31, 2019 is as follows: Weighted-Average Grant-Date Fair Number of shares Value per Share Non-vested, at December 31, 2018 605,801 $ 20.41 Granted — — Vested (17,000 ) 14.72 Canceled and surrendered (8,000 ) 14.72 Non-vested, at March 31, 2019 580,801 $ 20.65 Awards are being amortized to expense over the three to five-year vesting period. The Company recognized $1.3 million and $1.3 million of compensation expense for the three months ended March 31, 2019 and 2018, respectively. There was approximately $9.6 million of unrecognized compensation expense related to the un-vested restricted stock at March 31, 2019. The Company expects to recognize substantially all of remaining compensation expense over approximately over the next 1.9 years. During the quarter ended March 31, 2019, 25,000 restricted shares were vested and released, all of which had been granted to employees. Of the shares released to employees, 8,000 shares were withheld by the Company to cover withholding taxes of $118,000. During the first quarter of 2018, no shares were vested and released.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	NOTE 22. SUBSEQUENT EVENTS The Company performed an evaluation of subsequent events through the date the financial statements were issued and determined there were no recognized or unrecognized subsequent events that would require an adjustment or additional disclosure in the financial statements as of March 31, 2019. On May 6, 2019, the Company announced that its Board of Directors declared a $0.06 per share quarterly dividend payable on July 3, 2019 to stockholders of record as of June 14, 2019.

Basis of Presentation and Sig_2

Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements include the accounts of the Heritage Insurance Holdings, Inc. (together with its subsidiaries, the “Company”). These statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Certain financial information that is normally included in annual financial statements prepared in accordance with GAAP, but that is not required for interim reporting purposes, has been omitted. In the opinion of the Company’s management, all material intercompany transactions and balances have been eliminated and all adjustments consisting of normal recurring accruals which are, necessary for a fair statement of the financial condition and results of operations for the interim periods have been reflected. The accompanying interim consolidated financial statements and related footnotes should be read in conjunction with the Company’s consolidated financial statements and related footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 (the “ 2018 Form 10-
Leases	Leases We lease office space as the lessor and tenant and have entered into various other lease agreements in conducting our business. We evaluate each lease agreement to determine whether the lease is an operating or financing lease and effective for the first quarter of 2019, we have established a right-of-use (“ROU”) asset and corresponding lease liability on the balance sheet. As described below under “Recently Adopted Accounting Pronouncements” we adopted the Financial Accounting Standards Update, or ASU, “Leases”, or “FASB 842” as of January 1, 2019. The Company did not recognize an opening adjustment to retained earnings as a result of the adoption of FASB 842. Refer to Note 5-Leases herein for further information.
Reclassification	Reclassification We have reclassified certain amounts in the 2018 condensed consolidated balance sheet to confirm to our 2019 presentation.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases We adopted the guidance prospectively during the first quarter of 2019. As part of our adoption, we elected not to reassess historical lease classification, recognize short-term leases on our balance sheet, nor separate lease and non-lease components for our real estate leases. At implementation, we recorded approximately $2.8 million as right-of-use operating and financing Accounting Pronouncements Not Yet Adopted For information regarding accounting standards that the Company has not yet adopted, refer to our Annual Report on Form 10-K, filed on March 12, 2019, the section of Note 1 of the notes to the consolidated financial statements the “Accounting Pronouncement Not Yet Adopted”.

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2019
Investments Debt And Equity Securities [Abstract]
Schedule of Difference between Cost or Adjusted/Amortized Cost and Estimated Fair Value, by Major Investment Category	Securities Available-for-Sale The following table details the difference between cost or adjusted/amortized cost and estimated fair value, by major investment category, at March 31, 2019 and December 31, 2018: March 31, 2019 Cost or Adjusted / Amortized Cost Gross Gains Gross Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities (1) $ 49,547 $ 81 $ 451 $ 49,177 States, municipalities and political subdivisions 65,988 440 151 66,277 Special revenue 244,841 1,463 1,479 244,825 Industrial and miscellaneous 163,514 943 951 163,506 Redeemable preferred stocks 4,303 5 153 4,155 $ 528,193 $ 2,932 $ 3,185 $ 527,940 December 31, 2018 Cost or Adjusted / Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities (1) $ 48,739 $ 40 $ 738 $ 48,041 States, municipalities and political subdivisions 60,028 46 785 59,289 Special revenue 249,026 210 3,881 245,355 Industrial and miscellaneous 155,678 81 3,302 152,457 Redeemable preferred stocks 4,920 — 413 4,507 $ 518,391 $ 377 $ 9,119 $ 509,649 (1) U.S. government and agency securities include pledged fixed maturity securities with an estimated fair value of $24 million and $31 million under the terms and condition of the advance agreement entered into with a financial institution as of March 31, 2019 and December 31, 2018, respectively. The Company is permitted to withdraw or exchange any portion of the pledged collateral over the minimum requirement at any time.
Schedule of Net Realized Gains (Losses) by Major Investment Category	The Company calculates the gain or loss realized on the sale of investments by comparing the sales price (fair value) to the cost or adjusted/amortized cost of the security sold. The Company determines the cost or adjusted/amortized cost of the security sold using the specific-identification method. The following tables detail the Company’s net realized gains (losses) by major investment category for the three months ended March 31, 2019 and 2018. 2019 2018 Gains (Losses) Fair Value at Sale Gains (Losses) Fair Value at Sale (In thousands) For the Three Months Ended March 31, Fixed maturity securities $ 5 $ 24,414 $ 87 $ 50,067 Equity securities — — 2 74 Total realized gains 5 24,414 89 50,141 Fixed maturity securities (67 ) 6,141 (218 ) 48,143 Equity securities (273 ) 513 (98 ) 2,167 Total realized losses (340 ) 6,654 (316 ) 50,310 Unrealized gains (losses) on equity securities (1) 1,359 — — — Net realized (losses) gains $ 1,024 $ 31,068 $ (227 ) $ 100,451 (1) For the three months ended March 31, 2018, the Company recognized $868,700 as unrealized losses on equity securities pursuant to ASC 2016-01, at the time of adoption the Company reported changes in the fair value of equity investments in Other revenue.
Schedule of Amortized Cost and Fair Value of Investment Securities by Contractual Maturity	The table below summarizes the Company’s fixed maturities at March 31, 2019 by contractual maturity periods. Actual results may differ as issuers may have the right to call or prepay obligations, with or without penalties, prior to the contractual maturity of those obligations. For the Three Months Ended March 31, 2019 Cost or Amortized Cost Percent of Total Fair Value Percent of Total Maturity dates: (In thousands) (In thousands) Due in one year or less $ 55,079 10 % $ 54,993 10 % Due after one year through five years 168,231 32 % 168,051 32 % Due after five years through ten years 138,520 26 % 138,978 26 % Due after ten years 166,363 32 % 165,918 32 % Total $ 528,193 100 % $ 527,940 100 %
Schedule of Realized Gains and Losses from Securities Include Sales of Securities and Unrealized Gains and Losses	The following tables present realized gains and losses from securities included both sales of securities and unrealized gains losses included in net income as of March 31, 2019 and December 31, 2018 : March 31, 2019 March 31, 2018 (In thousands) Net gains (loss) recognized during the period on equity securities $ 1,086 $ (945 ) Less: Net losses (gains) recognized from equity securities sold 273 76 Unrealized gains (loss) recognized on equity securities still held at reporting date $ 1,359 $ (869 )
Summary of Net Investment Income	The following table summarizes the Company’s net investment income by major investment category for the three months ended March 31, 2019 and 2018, respectively: For the Three Months Ended March 31, 2019 2018 (In thousands) Fixed maturity securities $ 2,724 $ 2,945 Equity securities 309 307 Cash, cash equivalents and short-term investments 817 157 Other investments 342 259 Net investment income 4,192 3,668 Investment expenses 520 366 Net investment income, less investment expenses $ 3,672 $ 3,302
Aging of Gross Unrealized Investment Losses	The following tables present an aging of our unrealized investment losses by investment class as of March 31, 2019 and December 31, 2018: Less Than Twelve Months Twelve Months or More March 31, 2019 Number of Securities Gross Unrealized Losses Fair Value Number of Securities Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities 9 $ 49 $ 2,635 59 $ 402 $ 19,792 States, municipalities and political subdivisions 1 1 523 35 150 29,693 Industrial and miscellaneous 54 109 16,848 235 842 70,928 Special revenue 23 82 13,985 318 1,397 96,391 Redeemable preferred stocks 25 24 1,368 17 129 2,215 Total fixed maturity securities 112 $ 265 $ 35,358 664 $ 2,920 $ 219,019 Less Than Twelve Months Twelve Months or More December 31, 2018 Number Gross Losses Fair Number of Securities Gross Unrealized Losses Fair Value (In thousands) Fixed maturity securities, available-for-sale U.S. government and agency securities 17 $ 129 $ 10,485 66 $ 609 $ 20,488 States, municipalities and political subdivisions 13 103 12,864 42 682 39,979 Industrial and miscellaneous 214 1,479 70,156 232 1,822 70,375 Special revenue 105 1,260 76,335 323 2,621 108,319 Redeemable preferred stocks 55 193 2,541 27 221 1,965 Total fixed maturity securities 404 $ 3,164 $ 172,381 690 $ 5,955 $ 241,126

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Financial Instruments	The following table presents information about the Company’s assets measured at fair value on a recurring basis. The Company assesses the levels for the investments at each measurement date, and transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Company’s accounting policy regarding the recognitions of transfers between levels of the fair value hierarchy. As of March 31, 2019, and December 31, 2018, there were no transfers in or out of Level 1, 2, and 3. March 31, 2019 Total Level 1 Level 2 Level 3 Invested Assets: (In thousands) Fixed maturity securities, available-for-sale: U.S. government and agency securities $ 49,177 $ 359 $ 48,818 $ — States, municipalities and political subdivisions 66,277 — 66,277 — Special revenue 244,825 — 244,825 — Industrial and miscellaneous 163,506 — 163,506 — Redeemable preferred stocks 4,155 4,155 — — Total fixed maturity securities 527,940 4,514 523,426 — Equity securities Common stock 3,825 3,825 — — Non-redeemable preferred stock 13,550 13,550 — — Total equity securities 17,375 17,375 — — Total investments 545,315 21,889 523,426 — Investments reported at NAV 21,693 — — — Total $ 567,008 $ 21,889 $ 523,426 $ — December 31, 2018 Total Level 1 Level 2 Level 3 Invested Assets: (in thousands) Fixed maturity securities, available-for-sale: U.S. government and agency securities $ 48,041 $ 354 $ 47,687 $ — States, municipalities and political subdivisions 59,289 — 59,289 — Special revenue 245,355 — 245,355 — Industrial and miscellaneous 152,457 — 152,457 — Redeemable preferred stocks 4,507 4,507 — — Total fixed maturity securities 509,649 4,861 504,788 — Equity securities Common stock 3,686 3,686 — — Non-redeemable preferred stock 12,770 12,770 — — Total equity securities 16,456 16,456 — — Total investments 526,105 21,317 504,788 — Investments reported at NAV 2,488 — — — Total $ 528,593 $ 21,317 $ 504,788 $ —

Other Comprehensive Income (Tab

Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2019
Comprehensive Income Net Of Tax [Abstract]
Effect on Other Comprehensive Income due to Changes in Unrealized Gains and Losses, Net of Tax on Available-for-sale Fixed Maturities Securities	The difference between net income as reported and comprehensive income was due to the changes in unrealized gains and losses, net of taxes on fixed maturities securities. For the Three Months Ended March 31, 2019 2018 Pre-tax Tax After-tax Pre-tax Tax After-tax (In thousands) Other comprehensive income Change in unrealized losses on investments, net $ 8,036 $ (2,323 ) $ 5,713 $ (6,478 ) $ 1,871 $ (4,607 ) Reclassification adjustment of realized losses (gains) included in net income 335 (85 ) 250 227 (48 ) 179 Effect on other comprehensive income $ 8,371 $ (2,408 ) $ 5,963 $ (6,251 ) $ 1,823 $ (4,428 )

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Components of Lease Costs	Components of our lease costs for the three months ended March 31, 2019 are as follows (in thousands): March 31, 2019 Amortization of ROU assets - Finance leases $ 23 Interest on lease liabilities - Finance leases 7 Variable lease cost (cost excluded from lease payments) 111 Operating lease cost (cost resulting from lease payments) 176 Total lease cost $ 317 New ROU assets - Operating leases $ 6,955
Supplemental Cash Flow Information and Non-Cash Activity Related to Operating and Financing Leases	Supplemental cash flow information and non-cash activity related to our operating and financing leases as of March 31, 2019 are as follows (in thousands): March 31, 2019 Finance lease - Operating cash flows $ 8 Finance lease - Financing cash flows $ 17 Operating lease - Operating cash flows (fixed payments) $ 171 Operating lease - Operating cash flows (liability reduction) $ 141
Supplemental Balance Sheet Information Related to Operating and Financing Leases	Supplemental balance sheet information related to our operating and financing leases as of March 31, 2019 are as follows (in thousands): Balance Sheet Classification March 31, 2019 Right-of-use assets (1) Other assets $ 7,129 Lease Liability Accounts payable and other liabilities $ (8,581 ) (1) Right-of-use asset is reduced by $1.3 million in lease incentives received in March 2019, for the new February 1, 2019 lease agreement.
Weighted-Average Remaining Lease Term and Discount Rate for Operating and Financing Leases	Weighted-average remaining lease term and discount rate for our operating and financing leases as of March 31, 2019 are as follows: March 31, 2019 Weighted average lease term - Finance leases 4.12 yrs. Weighted average lease term - Operating leases 8.48 yrs. Weighted average discount rate - Finance leases 8.1 % Weighted average discount rate - Operating leases 5.3 %
Maturities of Lease Liabilities by Fiscal Year for Operating and Financing Leases	Maturities of lease liabilities by fiscal year for our operating and financing leases as of March 31, 2019 are as follows (in thousands): March 31, 2019 2019 remaining $ 879 2020 1,437 2021 1,405 2022 1,439 2023 1,254 2024 and thereafter 4,449 Total lease payments 10,863 Less: imputed interest (2,282 ) Present value of lease liabilities $ 8,581

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following at March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Land $ 2,582 $ 2,582 Building 11,390 11,390 Computer hardware and software 5,163 4,901 Office furniture and equipment 1,855 1,397 Tenant and leasehold improvements 7,717 4,477 Vehicle fleet 783 854 Total, at cost 29,490 25,601 Less: accumulated depreciation and amortization (8,173 ) (7,603 ) Property and equipment, net $ 21,317 $ 17,998

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Goodwill (In thousands) Balance as of December 31, 2018 $ 152,459 Goodwill acquired — Impairment — Balance as of March 31, 2019 $ 152,459
Schedule of Estimated Amortization of Intangible Assets	Estimated annual pretax amortization of intangible assets for each of the next five years and thereafter is as follows (in thousands): Year Amount 2019 remaining $ 6,115 2020 $ 6,365 2021 $ 6,351 2022 $ 6,351 2023 $ 6,351 2024 $ 6,351 Thereafter $ 35,558 $ 73,442 (1) Excludes insurance licenses valued at $1.3 million and classified as an indefinite lived intangible which is subject to annual impairment testing and not amortized.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings Per Share (EPS)	The following table sets forth the computation of basic and diluted earnings per share (“EPS”) for the periods indicated. For the Three Months Ended March 31, 2019 2018 Basic earnings per share: Net income attributable to common stockholders (000's) $ 6,964 $ 14,829 Weighted average shares outstanding 29,540,514 25,727,553 Basic earnings per share: $ 0.24 $ 0.58 Diluted earnings per share: Net income attributable to common stockholders (000's) $ 6,964 $ 14,829 Weighted average shares outstanding 29,540,514 25,727,553 Weighted average dilutive shares 4,049 1,004,466 Total weighted average dilutive shares 29,544,563 26,732,019 Diluted earnings per share: $ 0.24 $ 0.55

Deferred Reinsurance Ceding C_2

Deferred Reinsurance Ceding Commission (Tables)	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Schedule of Activity with Regard to Deferred Reinsurance Ceding Commission	The table below depicts the activity with regard to deferred reinsurance ceding commission during the three-month periods ended March 31, 2019 and 2018. For the Three Months Ended March 31, 2019 2018 (In thousands) Beginning balance of deferred ceding commission income $ 44,996 $ 51,277 Ceding commission deferred 12,647 15,557 Less: ceding commission earned (17,169 ) (18,993 ) Ending balance of deferred ceding commission income $ 40,474 $ 47,841

Deferred Policy Acquisition C_2

Deferred Policy Acquisition Costs (Tables)	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Summary of Activity in Deferred Policy Acquisition Costs (DPAC)	The table below depicts the activity with regard to DPAC during the three-month periods ended March 31, 2019 and 2018. For the Three Months Ended March 31, 2019 2018 (In thousands) Beginning Balance $ 73,055 $ 41,678 Policy acquisition costs deferred 35,965 24,371 Amortization (39,137 ) (12,187 ) Ending Balance $ 69,883 $ 53,862

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Components of Deferred Tax Assets (Liabilities)	The table below summarizes the significant components of our net deferred tax assets (liabilities): March 31, 2019 December 31, 2018 Deferred tax assets: (In thousands) Unearned premiums $ 15,264 $ 12,090 Unearned commission 9,657 10,733 Net operating loss 109 109 Tax-related discount on loss reserve 2,418 2,329 Unrealized loss 431 2,631 Stock-based compensation 528 297 Accrued expenses 2,050 2,321 Other 1,870 1,443 Total deferred tax asset 32,327 31,953 Deferred tax liabilities: Deferred acquisition costs 16,735 17,494 Prepaid expenses 65 112 Property and equipment 533 664 Note discount 536 710 Basis in purchased investments 149 163 Basis in purchased intangibles 18,509 18,982 Other 1,767 1,533 Total deferred tax liabilities 38,294 39,658 Net deferred tax liability $ (5,967 ) $ (7,705 )

Reinsurance (Tables)

Reinsurance (Tables)	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Schedule of Effect of Reinsurance Arrangements in Consolidated Statement of Income	The Company’s reinsurance arrangements had the following effect on certain items in the condensed consolidated statement of income for the three months ended March 31, 2019 and 2018: For the Three Months Ended March 31, 2019 2018 (In thousands) Premium written: Direct $ 210,348 $ 204,366 Ceded (46,842 ) (57,350 ) Net $ 163,506 $ 147,016 Premiums earned: Direct 228,590 $ 227,163 Ceded (118,899 ) (121,055 ) Net $ 109,691 $ 106,108 Loss and Loss Adjustment Expenses Direct $ 112,176 $ 335,729 Ceded (50,037 ) (282,638 ) Net $ 62,139 $ 53,091

Reserve for Unpaid Losses (Tabl

Reserve for Unpaid Losses (Tables)	3 Months Ended
	Mar. 31, 2019
Insurance [Abstract]
Summary of Reserve for Unpaid Losses	The table below summarizes the activity related to the Company’s reserve for unpaid losses: For the Three Months Ended March 31, 2019 2018 (In thousands) Balance, beginning of period $ 432,359 $ 470,083 Less: reinsurance recoverable on unpaid losses 250,507 315,353 Net balance, beginning of period 181,852 154,730 Incurred related to: Current year 62,725 51,361 Prior years (586 ) 1,730 Total incurred 62,139 53,091 Paid related to: Current year 8,362 (1,252 ) Prior years 45,616 46,737 Total paid 53,978 45,485 Net balance, end of period 190,013 162,336 Plus: reinsurance recoverable on unpaid losses 214,471 385,399 Balance, end of period $ 404,484 $ 547,735

Long-Term Debt (Tables)

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Schedule of Company's Long-Term Debt	The following table summarizes the Company’s long-term debt as of March 31, 2019 and December 31, 2018: March 31, 2019 December 31, 2018 (In thousands) Convertible debt $ 23,413 $ 29,163 Mortgage loan 12,324 12,394 Term loan facility 73,125 75,000 Revolving credit facility 10,000 20,000 FHLB loan agreement 19,200 19,200 Total principal amount $ 138,062 $ 155,757 Less: unamortized discount and issuance costs $ 5,886 $ 6,963 Total long-term debt $ 132,176 $ 148,794
Schedule of Principal Payments on Long-Term Debt	The schedule of principal payments on long-term debt is as follows: Year Amount (In thousands) 2019 remaining $ 5,832 2020 7,790 2021 7,806 2022 7,822 2023 74,589 Thereafter 34,223 Total $ 138,062

Accounts Payable and Other Li_2

Accounts Payable and Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Other Liabilities Disclosure [Abstract]
Schedule of Accounts Payable and Other Liabilities	Accounts payable and other liabilities consist of the following as of March 31, 2019 and December 31, 2018: Description March 31, 2019 December 31, 2018 (In thousands) Deferred ceding commission $ 40,474 $ 44,996 Outstanding claim checks 15,624 15,360 Accounts payable and other payables 11,051 8,379 Lease obligations 8,581 — Accrued interest and issuance costs 697 1,285 Accrued dividends 1,807 1,589 Premium tax 406 2,241 Current income taxes 5,725 — Other liabilities — 460 Commission payables $ 10,782 11,654 Total other liabilities $ 95,147 $ 85,964

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Restricted Stock Activity	Weighted-Average Grant-Date Fair Number of shares Value per Share Non-vested, at December 31, 2018 605,801 $ 20.41 Granted — — Vested (17,000 ) 14.72 Canceled and surrendered (8,000 ) 14.72 Non-vested, at March 31, 2019 580,801 $ 20.65

Basis of Presentation and Sig_3

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) $ in Millions	Mar. 31, 2019USD ($)
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Right-of-use assets	$ 2.8
Lease liabilities	$ 2.8

Investments - Schedule of Diffe

Investments - Schedule of Difference between Cost or Adjusted/Amortized Cost and Estimated Fair Value, by Major Investment Category (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	$ 528,193	$ 518,391
Available-for-sale, Fair Value	527,940	509,649
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	528,193	518,391
Available-for-sale, Gross Unrealized Gains	2,932	377
Available-for-sale, Gross Unrealized Losses	3,185	9,119
Available-for-sale, Fair Value	527,940	509,649
U.S. government and agency securities [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	49,547	48,739
Available-for-sale, Gross Unrealized Gains	81	40
Available-for-sale, Gross Unrealized Losses	451	738
Available-for-sale, Fair Value	49,177	48,041
States, Municipalities and Political Subdivisions [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	65,988	60,028
Available-for-sale, Gross Unrealized Gains	440	46
Available-for-sale, Gross Unrealized Losses	151	785
Available-for-sale, Fair Value	66,277	59,289
Special Revenue [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	244,841	249,026
Available-for-sale, Gross Unrealized Gains	1,463	210
Available-for-sale, Gross Unrealized Losses	1,479	3,881
Available-for-sale, Fair Value	244,825	245,355
Industrial and Miscellaneous [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	163,514	155,678
Available-for-sale, Gross Unrealized Gains	943	81
Available-for-sale, Gross Unrealized Losses	951	3,302
Available-for-sale, Fair Value	163,506	152,457
Redeemable Preferred Stocks [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Cost or Adjusted / Amortized Cost	4,303	4,920
Available-for-sale, Gross Unrealized Gains	5
Available-for-sale, Gross Unrealized Losses	153	413
Available-for-sale, Fair Value	$ 4,155	$ 4,507

Investments - Schedule of Dif_2

Investments - Schedule of Difference between Cost or Adjusted/Amortized Cost and Estimated Fair Value, by Major Investment Category (Parenthetical) (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 527,940	$ 509,649
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	527,940	509,649
U.S. government and agency securities [Member] | Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	49,177	48,041
U.S. government and agency securities [Member] | Fixed Maturity Securities [Member] | Pledged securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 24,000	$ 31,000

Investments - Schedule of Net R

Investments - Schedule of Net Realized Gains (Losses) by Major Investment Category (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Total realized gains	$ 5	$ 89
Total realized losses	(340)	(316)
Unrealized gains (losses) on equity securities	1,359	(869)
Net realized (losses) gains	1,024	(227)
Total realized gains, Fair Value at Sale	24,414	50,141
Total realized losses, Fair Value at Sale	6,654	50,310
Net realized gain (losses), Fair Value at Sale	31,068	100,451
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total realized gains	5	87
Total realized losses	(67)	(218)
Total realized gains, Fair Value at Sale	24,414	50,067
Total realized losses, Fair Value at Sale	6,141	48,143
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total realized gains		2
Total realized losses	(273)	(98)
Total realized gains, Fair Value at Sale		74
Total realized losses, Fair Value at Sale	$ 513	$ 2,167

Investments - Schedule of Net_2

Investments - Schedule of Net Realized Gains (Losses) by Major Investment Category (Parenthetical) (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on equity securities	$ (1,359,000)	$ 869,000
ASC 2016-01 [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on equity securities		$ 868,700

Investments - Schedule of Amort

Investments - Schedule of Amortized Cost and Fair Value of Investment Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]
Maturity date Due in one year or less, Cost or Amortized Cost	$ 55,079
Maturity date Due after one year through five years, Cost or Amortized Cost	168,231
Maturity date Due after five years through ten years, Cost or Amortized Cost	138,520
Maturity date Due after ten years, Cost or Amortized Cost	166,363
Available-for-sale, Cost or Adjusted / Amortized Cost	$ 528,193	$ 518,391
Maturity date Due in one year or less, Percentage of Total	10.00%
Maturity date Due after one year through five years, Percentage of Total	32.00%
Maturity date Due after five years through ten years, Percentage of Total	26.00%
Maturity date Due after ten years, Percentage of Total	32.00%
Maturity date Total, Percentage	100.00%
Maturity date Due in one year or less, Fair Value	$ 54,993
Maturity date Due after one year through five years, Fair Value	168,051
Maturity date Due after five years through ten years, Fair Value	138,978
Maturity date Due after ten years, Fair Value	165,918
Maturity date Total, Fair Value	$ 527,940	$ 509,649
Maturity date Due in one year or less, Percentage of Total	10.00%
Maturity date Due after one year through five years, Percentage of Total	32.00%
Maturity date Due after five years through ten years, Percentage of Total	26.00%
Maturity date Due after ten years, Percentage of Total	32.00%
Maturity date Total, Percentage	100.00%

Investments - Schedule of Reali

Investments - Schedule of Realized Gains and Losses from Securities Include Sales of Securities and Unrealized Gains and Losses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Investments Debt And Equity Securities [Abstract]
Net gains (loss) recognized during the period on equity securities	$ 1,086	$ (945)
Less: Net losses (gains) recognized from equity securities sold	273	76
Unrealized gains (loss) recognized on equity securities still held at reporting date	$ 1,359	$ (869)

Investments - Summary of Net In

Investments - Summary of Net Investment Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Gross investment income (loss)	$ 4,192	$ 3,668
Investment expenses	520	366
Net investment income, less investment expenses	3,672	3,302
Fixed Maturity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income (loss)	2,724	2,945
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income (loss)	309	307
Cash and Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income (loss)	817	157
Other Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross investment income (loss)	$ 342	$ 259

Investments - Additional Inform

Investments - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Investments [Line Items]
Other Investments, estimated fair value	$ 21,693,000		$ 2,488,000
Proceeds from return on preferred stock capital distributions	259,800	$ 121,170
Investment allocated cost	520,000	366,000
Limited Partnership [Member]
Investments [Line Items]
Other Investments, estimated fair value	21,700,000
Investment allocated cost	$ 0	$ 5,000

Investments - Aging of Gross Un

Investments - Aging of Gross Unrealized Investment Losses (Detail) - Fixed Maturity Securities [Member] $ in Thousands	Mar. 31, 2019USD ($)Security	Dec. 31, 2018USD ($)Security
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	112	404
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 265	$ 3,164
Available-for-sale, Less Than Twelve Months, Fair Value	$ 35,358	$ 172,381
Available-for-sale, Twelve Months or More, Number of Securities | Security	664	690
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 2,920	$ 5,955
Available-for-sale, Twelve Months or More, Fair Value	$ 219,019	$ 241,126
U.S. government and agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	9	17
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 49	$ 129
Available-for-sale, Less Than Twelve Months, Fair Value	$ 2,635	$ 10,485
Available-for-sale, Twelve Months or More, Number of Securities | Security	59	66
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 402	$ 609
Available-for-sale, Twelve Months or More, Fair Value	$ 19,792	$ 20,488
States, Municipalities and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	1	13
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 1	$ 103
Available-for-sale, Less Than Twelve Months, Fair Value	$ 523	$ 12,864
Available-for-sale, Twelve Months or More, Number of Securities | Security	35	42
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 150	$ 682
Available-for-sale, Twelve Months or More, Fair Value	$ 29,693	$ 39,979
Special Revenue [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	23	105
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 82	$ 1,260
Available-for-sale, Less Than Twelve Months, Fair Value	$ 13,985	$ 76,335
Available-for-sale, Twelve Months or More, Number of Securities | Security	318	323
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 1,397	$ 2,621
Available-for-sale, Twelve Months or More, Fair Value	$ 96,391	$ 108,319
Industrial and Miscellaneous [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	54	214
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 109	$ 1,479
Available-for-sale, Less Than Twelve Months, Fair Value	$ 16,848	$ 70,156
Available-for-sale, Twelve Months or More, Number of Securities | Security	235	232
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 842	$ 1,822
Available-for-sale, Twelve Months or More, Fair Value	$ 70,928	$ 70,375
Redeemable Preferred Stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale, Less Than Twelve Months, Number of Securities | Security	25	55
Available-for-sale, Less Than Twelve Months, Gross Unrealized Losses	$ 24	$ 193
Available-for-sale, Less Than Twelve Months, Fair Value	$ 1,368	$ 2,541
Available-for-sale, Twelve Months or More, Number of Securities | Security	17	27
Available-for-sale, Twelve Months or More, Gross Unrealized Losses	$ 129	$ 221
Available-for-sale, Twelve Months or More, Fair Value	$ 2,215	$ 1,965

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment exit load percentage within one year	3.00%
Other investment			$ 2,400,000
Nonrecurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-recurring fair value adjustments	$ 0	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Schedule of Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	$ 527,940	$ 509,649
Available for sale equity securities	17,375	16,456
Total investments	545,315	526,105
Investments reported at NAV	21,693	2,488
Total investments	567,008	528,593
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total investments	21,889	21,317
Total investments	21,889	21,317
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total investments	523,426	504,788
Total investments	523,426	504,788
Fixed Maturity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	527,940	509,649
Fixed Maturity Securities [Member] | U.S. government and agency securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	49,177	48,041
Fixed Maturity Securities [Member] | States, Municipalities and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	66,277	59,289
Fixed Maturity Securities [Member] | Special Revenue [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	244,825	245,355
Fixed Maturity Securities [Member] | Industrial and Miscellaneous [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	163,506	152,457
Fixed Maturity Securities [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	4,155	4,507
Fixed Maturity Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	4,514	4,861
Fixed Maturity Securities [Member] | Level 1 [Member] | U.S. government and agency securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	359	354
Fixed Maturity Securities [Member] | Level 1 [Member] | Redeemable Preferred Stocks [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	4,155	4,507
Fixed Maturity Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	523,426	504,788
Fixed Maturity Securities [Member] | Level 2 [Member] | U.S. government and agency securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	48,818	47,687
Fixed Maturity Securities [Member] | Level 2 [Member] | States, Municipalities and Political Subdivisions [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	66,277	59,289
Fixed Maturity Securities [Member] | Level 2 [Member] | Special Revenue [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	244,825	245,355
Fixed Maturity Securities [Member] | Level 2 [Member] | Industrial and Miscellaneous [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale, Fair Value	163,506	152,457
Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	17,375	16,456
Equity Securities [Member] | Nonredeemable Preferred Stocks [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	13,550	12,770
Equity Securities [Member] | Common Stock [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	3,825	3,686
Equity Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	17,375	16,456
Equity Securities [Member] | Level 1 [Member] | Nonredeemable Preferred Stocks [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	13,550	12,770
Equity Securities [Member] | Level 1 [Member] | Common Stock [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available for sale equity securities	$ 3,825	$ 3,686

Other Comprehensive Income - Ad

Other Comprehensive Income - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Comprehensive Income Net Of Tax [Abstract]
Other comprehensive income	$ 5,963	$ (4,428)

Other Comprehensive Income - Ef

Other Comprehensive Income - Effect on Other Comprehensive Income due to Changes in Unrealized Gains and Losses, Net of Taxes on Fixed Maturities Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Other comprehensive income
Change in unrealized losses on investments, net, Pre-tax	$ 8,036	$ (6,478)
Reclassification adjustment of realized losses (gains) included in net income, Pre-tax	335	227
Effect on other comprehensive income, Pre-tax	8,371	(6,251)
Change in unrealized losses on investments, net, Tax	(2,323)	1,871
Reclassification adjustment of realized losses (gains) included in net income, Tax	(85)	(48)
Effect on other comprehensive income, Tax	(2,408)	1,823
Change in unrealized losses on investments, net, After-tax	5,713	(4,607)
Reclassification adjustment of realized losses (gains) included in net income, After-tax	250	179
Effect on other comprehensive income, After-tax	$ 5,963	$ (4,428)

Leases - Additional Information

Leases - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2019
Lessee Lease Description [Line Items]
Lease renewal, Description	one or more options to renew.
Minimum [Member]
Lessee Lease Description [Line Items]
Lease terms	1 year
Renewal terms of lease	3 years
Maximum [Member]
Lessee Lease Description [Line Items]
Lease terms	10 years
Renewal terms of lease	10 years

Leases - Components of Lease Co

Leases - Components of Lease Costs (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Amortization of ROU assets - Finance leases	$ 23
Interest on lease liabilities - Finance leases	7
Variable lease cost (cost excluded from lease payments)	111
Operating lease cost (cost resulting from lease payments)	176
Total lease cost	317
New ROU assets - Operating leases	$ 6,955

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information and Non-Cash Activity Related to Operating and Financing Leases (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Finance lease - Operating cash flows	$ 8
Finance lease - Financing cash flows	17
Operating lease - Operating cash flows (fixed payments)	171
Operating lease - Operating cash flows (liability reduction)	$ 141

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information Related to Operating and Financing Leases (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Lessee Lease Description [Line Items]
Right-of-use assets	$ 2,800
Lease Liability	(2,800)
Other Assets [Member]
Lessee Lease Description [Line Items]
Right-of-use assets	7,129
Accounts Payable and Other Liabilities [Member]
Lessee Lease Description [Line Items]
Lease Liability	$ (8,581)

Leases - Supplemental Balance_2

Leases - Supplemental Balance Sheet Information Related to Operating and Financing Leases (Parenthetical) (Detail) $ in Millions	1 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Lease incentives received	$ 1.3

Leases - Weighted-Average Remai

Leases - Weighted-Average Remaining Lease Term and Discount Rate for Operating and Financing Leases (Detail)	Mar. 31, 2019
Leases [Abstract]
Weighted average lease term - Finance leases	4 years 1 month 13 days
Weighted average lease term - Operating leases	8 years 5 months 23 days
Weighted average discount rate - Finance leases	8.10%
Weighted average discount rate - Operating leases	5.30%

Leases - Maturities of Lease Li

Leases - Maturities of Lease Liabilities by Fiscal Year for Operating and Financing Leases (Detail) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2019 remaining	$ 879
2020	1,437
2021	1,405
2022	1,439
2023	1,254
2024 and thereafter	4,449
Total lease payments	10,863
Less: imputed interest	(2,282)
Present value of lease liabilities	$ 8,581

Property and Equipment, Net - S

Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total, at cost	$ 29,490	$ 25,601
Less: accumulated depreciation and amortization	(8,173)	(7,603)
Property and equipment, net	21,317	17,998
Land [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	2,582	2,582
Building [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	11,390	11,390
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	5,163	4,901
Office Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	1,855	1,397
Tenant and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	7,717	4,477
Vehicle Fleet [Member]
Property, Plant and Equipment [Line Items]
Total, at cost	$ 783	$ 854

Property and Equipment, Net - A

Property and Equipment, Net - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)aft²Building	Mar. 31, 2018USD ($)
Property Plant And Equipment Useful Life And Values [Abstract]
Depreciation and amortization expense | $	$ 571,000	$ 414,000
Number of acres of land purchased | a	15
Number of buildings | Building	5
Gross area of acquired property | ft²	229,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]
Goodwill	$ 152,459,000		$ 152,459,000
Intangibles, net	74,757,000		$ 76,850,000
Indefinite lived intangible, insurance licenses	1,300,000
Amortization of intangible assets	2,100,000	$ 6,600,000
Impairment of amortizing intangible assets	0	0
Impairment of non-amortizing intangible assets	$ 0	$ 0
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Useful life of intangible asset	2 years 6 months
Finite-lived intangible assets useful lives	1 year
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Useful life of intangible asset	15 years
Finite-lived intangible assets useful lives	15 years

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	Mar. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 152,459
Ending balance	$ 152,459

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Schedule of Estimated Amortization of Intangible Assets (Details) $ in Thousands	Mar. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
2019 remaining	$ 6,115
2020	6,365
2021	6,351
2022	6,351
2023	6,351
2024	6,351
Thereafter	35,558
Intangible Assets, net	$ 73,442

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Schedule of Estimated Amortization of Intangible Assets (Parenthetical) (Details) $ in Millions	Mar. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Indefinite lived intangible, insurance licenses	$ 1.3

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (EPS) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic earnings per share:
Net income attributable to common stockholders (000's)	$ 6,964	$ 14,829
Weighted average shares outstanding	29,540,514	25,727,553
Basic earnings per share:	$ 0.24	$ 0.58
Diluted earnings per share:
Net income attributable to common stockholders (000's)	$ 6,964	$ 14,829
Weighted average shares outstanding	29,540,514	25,727,553
Weighted average dilutive shares	4,049	1,004,466
Total weighted average dilutive shares	29,544,563	26,732,019
Diluted earnings per share:	$ 0.24	$ 0.55

Deferred Reinsurance Ceding C_3

Deferred Reinsurance Ceding Commission - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Policy Acquisition Costs [Member]
Deferred Reinsurance Ceding Commission [Line Items]
Ceding commission income	$ 12.9	$ 14.3
General and Administrative Expenses [Member]
Deferred Reinsurance Ceding Commission [Line Items]
Ceding commission income	$ 4.3	$ 4.7

Deferred Reinsurance Ceding C_4

Deferred Reinsurance Ceding Commission - Schedule of Activity with Regard to Deferred Reinsurance Ceding Commission (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Insurance [Abstract]
Beginning balance of deferred ceding commission income	$ 44,996	$ 51,277
Ceding commission deferred	12,647	15,557
Less: ceding commission earned	(17,169)	(18,993)
Ending balance of deferred ceding commission income	$ 40,474	$ 47,841

Deferred Policy Acquisition C_3

Deferred Policy Acquisition Costs - Summary of Activity in Deferred Policy Acquisition Costs (DPAC) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Insurance [Abstract]
Beginning Balance	$ 73,055	$ 41,678
Policy acquisition costs deferred	35,965	24,371
Amortization	(39,137)	(12,187)
Ending Balance	$ 69,883	$ 53,862

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 2,369,000	$ 5,168,000
Annual effective tax rate	25.40%	25.80%
Uncertain tax positions	$ 0		$ 0

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Assets (Liabilities) (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Unearned premiums	$ 15,264	$ 12,090
Unearned commission	9,657	10,733
Net operating loss	109	109
Tax-related discount on loss reserve	2,418	2,329
Unrealized loss	431	2,631
Stock-based compensation	528	297
Accrued expenses	2,050	2,321
Other	1,870	1,443
Total deferred tax asset	32,327	31,953
Deferred tax liabilities:
Deferred acquisition costs	16,735	17,494
Prepaid expenses	65	112
Property and equipment	533	664
Note discount	536	710
Basis in purchased investments	149	163
Basis in purchased intangibles	18,509	18,982
Other	1,767	1,533
Total deferred tax liabilities	38,294	39,658
Net deferred tax liability	$ (5,967)	$ (7,705)

Reinsurance - Additional inform

Reinsurance - Additional information (Detail)	3 Months Ended
	Mar. 31, 2019
Catastrophe [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Reinsurance premium, amortization period	12 months
Quota Share [Member]
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items]
Reinsurance premium, amortization period	12 months

Reinsurance - Schedule of Effec

Reinsurance - Schedule of Effect of Reinsurance Arrangements in Consolidated Statement of Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Premiums Written
Premiums Written, Direct	$ 210,348	$ 204,366
Premiums Written, Ceded	(46,842)	(57,350)
Premiums Written, Net	163,506	147,016
Premiums Earned
Premiums Earned, Direct	228,590	227,163
Premiums Earned, Ceded	(118,899)	(121,055)
Net premiums earned	109,691	106,108
Losses and Loss Adjustment Expenses
Losses and Loss Adjustment Expenses, Direct	112,176	335,729
Losses and Loss Adjustment Expenses, Ceded	(50,037)	(282,638)
Losses and Loss Adjustment Expenses, Net	$ 62,139	$ 53,091

Reserve for Unpaid Losses - Sum

Reserve for Unpaid Losses - Summary of Reserve for Unpaid Losses (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Insurance [Abstract]
Balance, beginning of period	$ 432,359	$ 470,083
Less: reinsurance recoverable on unpaid losses	250,507	315,353
Net balance, beginning of period	181,852	154,730
Incurred related to:
Current year	62,725	51,361
Prior years	(586)	1,730
Total incurred	62,139	53,091
Paid related to:
Current year	8,362	(1,252)
Prior years	45,616	46,737
Total paid	53,978	45,485
Net balance, end of period	190,013	162,336
Plus: reinsurance recoverable on unpaid losses	214,471	385,399
Balance, end of period	$ 404,484	$ 547,735

Reserve for Unpaid Losses - Add

Reserve for Unpaid Losses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Liability For Claims And Claims Adjustment Expense [Line Items]
Unpaid losses and loss adjustment expenses	$ 190,013	$ 162,336	$ 181,852	$ 154,730
Unpaid losses and loss adjustment expenses attributable to IBNR net of reinsurance recoverables	$ 143,100
Net reserves for unpaid losses and loss adjustment expenses, percentage	75.00%
Losses incurred favorable and unfavorable development	$ (586)	1,730
Hurricane Claims [Member]
Liability For Claims And Claims Adjustment Expense [Line Items]
Losses incurred favorable and unfavorable development	$ (600)	$ 1,700

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)	Feb. 19, 2019	Dec. 31, 2018	Oct. 31, 2017	Mar. 31, 2019	Mar. 31, 2018	Nov. 30, 2018	Sep. 30, 2017	Aug. 31, 2017
Debt Instrument [Line Items]
Long-term debt, net		$ 148,794,000		$ 132,176,000
Issuance and debt discount costs		6,963,000		5,886,000
Convertible notes converted into common stock				4,210,000
Payout dividends, aggregate amount				1,601,000	$ 1,601,000
Maximum [Member]
Debt Instrument [Line Items]
Payout dividends, aggregate amount				10,000,000
Federal Home Loan Bank Of Atlanta [Member]
Debt Instrument [Line Items]
Interest paid				148,500
FHLB advance Interest rate						3.094%
Cash loan received under advance from FHLB						$ 19,200,000
Required fair value of reinvestment in FHLB common stock.		$ 1,400,000		1,400,000
Estimated fair value of collateral with FHLB				$ 24,200,000
Convertible Note [Member] | Heritage Insurance Holdings, Inc. [Member]
Debt Instrument [Line Items]
Repurchase of convertible notes	$ 5,800,000
Cash consideration paid for repurchase of debt	$ 2,900,000
Shares issued for consideration of repurchase debt	285,201
Convertible notes converted into common stock	$ 4,200,000
Non-operating loss extinguishment of debt	$ (48,000)
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount							$ 136,800,000	$ 136,800,000
Interest rate							5.875%	5.875%
Notes maturity date				Aug. 1, 2037
Interest payments term				Interest is payable semi-annually in arrears, on February 1, and August 1 of each year, commencing in 2018.
Long-term debt, net				$ 20,800,000
Issuance and debt discount costs				2,600,000
Interest paid				1,500,000	3,700,000
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Notes maturity period		5 years
Maximum borrowing capacity		$ 125,000,000
Senior Secured Credit Facility [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount		75,000,000		1,900,000
Interest paid				1,100,000
Maximum borrowing capacity		75,000,000
Aggregate principal amount				73,100,000
Senior Secured Credit Facility [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest paid				251,700
Maximum borrowing capacity		$ 50,000,000		50,000,000
Outstanding borrowing capacity amount				10,000,000
Letters of credit outstanding amount				0
Senior Secured Credit Facility [Member] | Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				5,000,000
Senior Secured Credit Facility [Member] | Swingline Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 10,000,000
Collateral Financial Arrangement [Member] | Skye Lane Properties LLC [Member] | Mortgage Loan [Member]
Debt Instrument [Line Items]
Aggregate principal amount			$ 12,700,000
Interest rate			4.95%
Notes maturity date			Oct. 30, 2027
Frequency of periodic principal and interest payments				monthly
Payment of principal and interest				$ 223,200	$ 223,200
Collateral Financial Arrangement [Member] | Skye Lane Properties LLC [Member] | Mortgage Loan [Member] | 5-year Treasury Security [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			3.10%

Long-Term Debt - Schedule of Co

Long-Term Debt - Schedule of Company's Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Principal amount	$ 138,062	$ 155,757
Less: unamortized discount and issuance costs	5,886	6,963
Total long-term debt	132,176	148,794
Term Loan Facility [Member]
Debt Instrument [Line Items]
Principal amount	73,125	75,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Principal amount	10,000	20,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Principal amount	23,413	29,163
FHLB Loan Agreement [Member]
Debt Instrument [Line Items]
Principal amount	19,200	19,200
Mortgage Loan [Member]
Debt Instrument [Line Items]
Principal amount	$ 12,324	$ 12,394

Long-Term Debt - Schedule of Pr

Long-Term Debt - Schedule of Principal Payments on Long-Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total long-term debt	$ 132,176	$ 148,794
Long-term Debt Agreements [Member]
Debt Instrument [Line Items]
2019 remaining	5,832
2020	7,790
2021	7,806
2022	7,822
2023	74,589
Thereafter	34,223
Total long-term debt	$ 138,062

Accounts Payable and Other Li_3

Accounts Payable and Other Liabilities - Schedule of Accounts Payable and Other Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Deferred ceding commission	$ 40,474	$ 44,996
Outstanding claim checks	15,624	15,360
Accounts payable and other payables	11,051	8,379
Lease obligations	8,581
Accrued interest and issuance costs	697	1,285
Accrued dividends	1,807	1,589
Premium tax	406	2,241
Current income taxes	5,725
Other liabilities		460
Commission payables	10,782	11,654
Total other liabilities	$ 95,147	$ 85,964

Statutory Accounting and Regu_2

Statutory Accounting and Regulations - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Heritage P&C [Member]
Statutory Accounting Practices [Line Items]
Statutory accounting practices, capital and surplus requirements of insurance subsidiary	Greater of $15 million or 10% of their respective liabilities.
Minimum required amount of capital and surplus maintained by the insurance subsidiary	$ 15,000,000
Statutory capital and surplus requirements, percentage	10.00%
Zephyr [Member]
Statutory Accounting Practices [Line Items]
Deposits held	$ 750,000
NBIC [Member]
Statutory Accounting Practices [Line Items]
Statutory capital and surplus	3,000,000
Heritage P&C, Zephyr, and NBIC [Member]
Statutory Accounting Practices [Line Items]
Statutory capital and surplus	$ 366,600,000	$ 376,300,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Mrs. Shannon Lucas [Member]
Related Party Transaction [Line Items]
Consulting fees hourly rate	$ 400
Immediate Family Member of Management or Principal Owner [Member]
Related Party Transaction [Line Items]
Consulting fees		$ 102,800	$ 171,000
Heritage P&C [Member] | Director [Member]
Related Party Transaction [Line Items]
Director annual compensation	$ 150,000

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Defined Contribution Plan Disclosure [Line Items]
Contribution for participating employees	$ 255,700	$ 394,200
Defined Contribution Plan, Plan Name	401(k)
Medical premium cost	$ 841,400	$ 853,000
Additional liability for unpaid claims	303,000
Stop loss coverage per employee	150,000
Defined contribution plan, aggregate limit for losses	$ 1,500,000
Defined contribution plan, aggregate stop loss commences threshold percentage	125.00%
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of contribution on employee salary	4.00%
Defined contribution plan, aggregate limit for losses in provided amount	$ 1,000,000
First 3% of Employees [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of contribution on employee salary	100.00%
Next 2% of the Employees [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of contribution on employee salary	50.00%

Equity - Additional Information

Equity - Additional Information (Detail) - USD ($)	May 06, 2019	Feb. 25, 2019	Aug. 01, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Class Of Stock [Line Items]
Common stock, shares authorized				50,000,000		50,000,000
Preferred stock, shares authorized				5,000,000
Common stock, shares outstanding				29,432,217		29,477,756
Treasury stock, shares				7,562,537		7,214,797
Additional paid-in capital				$ 328,937,000		$ 325,292,000
Common stock voting rights				one vote
Stock repurchase program, authorized amount			$ 50,000,000	$ 45,000,000
Stock repurchase program, expiration date			Dec. 31, 2020	Dec. 31, 2020
Treasury shares repurchased, shares				347,740	115,200
Treasury shares repurchased, value				$ 5,011,000	$ 1,999,000
Cash dividend per common share	$ 0.06	$ 0.06
Cash dividend, payable date	Jul. 3, 2019	Apr. 3, 2019
Dividend payable, record date	Jun. 14, 2019	Mar. 15, 2019
Restricted Stock [Member]
Class Of Stock [Line Items]
Unvested restricted common stock issued				580,801		605,801

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	May 22, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum tenure of stock option from the date of grant	10 years
Exercisable period of vested awards	30 days
Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period	1 year
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period	5 years
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards granted	0
Stock-based compensation expense	$ 1,300,000	$ 1,300,000
Unrecognized stock compensation expense	$ 9,600,000
Unrecognized stock compensation expense, weighted average period	1 year 10 months 24 days
Restricted stock vested and released	25,000	0
Shares withheld to cover withholding taxes	8,000
Shares withheld to cover withholding taxes, value	$ 118,000
Restricted Stock [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period	3 years
Restricted Stock [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period	5 years
Restricted Stock [Member] | Employee [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock awards granted		155,801
Restricted Stock [Member] | Employee [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period		3 years
Restricted Stock [Member] | Employee [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock options, vesting period		5 years
Omnibus Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance			2,981,737
Shares available for grant	1,321,398

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Restricted Stock Activity (Detail) - Restricted Stock [Member]	3 Months Ended
	Mar. 31, 2019$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Beginning balance, Number of shares	605,801
Granted, Number of shares	0
Vested, Number of shares	(17,000)
Canceled and surrendered, Number of shares	(8,000)
Ending balance, Number of shares	580,801
Beginning balance, Weighted-Average Grant-Date Fair Value per Share | $ / shares	$ 20.41
Vested, Weighted-Average Grant-Date Fair Value per Share | $ / shares	14.72
Canceled and surrendered, Weighted-Average Grant-Date Fair Value per Share | $ / shares	14.72
Ending balance, Weighted-Average Grant-Date Fair Value per Share | $ / shares	$ 20.65

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - $ / shares	May 06, 2019	Feb. 25, 2019
Subsequent Events [Abstract]
Cash dividend, declared date	May 6, 2019
Cash dividend per common share	$ 0.06	$ 0.06
Cash dividend, payable date	Jul. 3, 2019	Apr. 3, 2019
Dividend payable, record date	Jun. 14, 2019	Mar. 15, 2019