10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the quarterly period ended June 30, 2018

☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from _______ to _______

Commission File Number: 001-37848

	KINSALE CAPITAL GROUP, INC. (Exact name of registrant as specified in its charter)
Delaware (State or other jurisdiction of incorporation or organization)		98-0664337 (I.R.S. Employer Identification Number)

2221 Edward Holland Drive, Suite 600

Richmond, VA 23230

(Address of principal executive offices)

(804) 289-1300

(Registrant's telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒   No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ (Do not check if a smaller reporting company) Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).


Yes  ☐     No  ☒

Number of shares of the registrant's common shares outstanding at July 31, 2018: 21,181,127

KINSALE CAPITAL GROUP, INC.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements	2
	Consolidated Balance Sheets (Unaudited) at June 30, 2018 and December 31, 2017	2
	Consolidated Statements of Income and Comprehensive Income (Unaudited) for the Three and Six Months Ended June 30, 2018 and 2017	3
	Consolidated Statements of Changes in Stockholders' Equity (Unaudited) for the Six Months Ended June 30, 2018 and 2017	4
	Condensed Consolidated Statements of Cash Flows (Unaudited) for the Six Months Ended June 30, 2018 and 2017	5
	Notes to Condensed Consolidated Financial Statements (Unaudited)	6
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	38
Item 4.	Controls and Procedures	38
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	39
Item 1A.	Risk Factors	39
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	39
Item 6.	Exhibits	39
	Signatures	40

1

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Balance Sheets (Unaudited)

	June 30, 2018			December 31, 2017
	(in thousands, except share and per share data)
Assets
Investments:
Fixed-maturity securities available for sale, at fair value (amortized cost: $472,418 in 2018; $422,255 in 2017)	$	467,922		$	425,191
Equity securities, at fair value (cost: $51,190 in 2018; $45,916 in 2017)	58,219			54,132
Total investments	526,141			479,323
Cash and cash equivalents	79,670			81,747
Investment income due and accrued	3,343			3,077
Premiums receivable, net	24,023			19,787
Reinsurance recoverables	54,436			49,593
Ceded unearned premiums	14,463			13,858
Deferred policy acquisition costs, net of ceding commissions	14,123			11,775
Intangible assets	3,538			3,538
Deferred income tax asset, net	5,073			2,492
Other assets	4,093			2,659
Total assets	$	728,903		$	667,849
Liabilities and Stockholders' Equity
Liabilities:
Reserves for unpaid losses and loss adjustment expenses	$	344,565		$	315,717
Unearned premiums	120,742			103,110
Payable to reinsurers	3,711			3,226
Accounts payable and accrued expenses	4,230			6,519
Other liabilities	7,710			1,088
Total liabilities	480,958			429,660
Stockholders’ equity:
Common stock, $0.01 par value, 400,000,000 shares authorized, 21,169,384 and 21,036,087 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	211			210
Additional paid-in capital	156,264			155,082
Retained earnings	93,129			73,502
Accumulated other comprehensive (loss) income	(1,659		)	9,395
Total stockholders’ equity	247,945			238,189
Total liabilities and stockholders’ equity	$	728,903		$	667,849

See accompanying notes to condensed consolidated financial statements.

2

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Income and Comprehensive Income (Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands, except per share data)
Revenues:
Gross written premiums	$	69,981		$	57,753		$	133,828		$	110,615
Ceded written premiums	(9,090		)	(7,980		)	(17,846		)	(16,680		)
Net written premiums	60,891			49,773			115,982			93,935
Change in unearned premiums	(9,998		)	(6,721		)	(17,028		)	(10,450		)
Net earned premiums	50,893			43,052			98,954			83,485
Net investment income	3,782			2,432			7,011			4,718
Net unrealized gains (losses) on equity securities	94			—			(1,185		)	—
Net realized gains (losses) on investments	174			24			286			(8		)
Other income	4			—			7			—
Total revenues	54,947			45,508			105,073			88,195
Expenses:
Losses and loss adjustment expenses	29,967			21,859			58,866			43,966
Underwriting, acquisition and insurance expenses	12,519			10,492			24,917			21,786
Other expenses	—			402			14			402
Total expenses	42,486			32,753			83,797			66,154
Income before income taxes	12,461			12,755			21,276			22,041
Total income tax expense	2,349			4,260			3,877			7,265
Net income	10,112			8,495			17,399			14,776
Other comprehensive income (loss):
Change in unrealized (losses) gains on available-for-sale investments, net of taxes of ($270) and ($1,561) in 2018 and $1,171 and $1,748 in 2017	(1,016		)	2,174			(5,872		)	3,247
Total comprehensive income	$	9,096		$	10,669		$	11,527		$	18,023

Earnings per share:
Basic	$	0.48	$	0.41	$	0.83	$	0.70
Diluted	$	0.47	$	0.40	$	0.80	$	0.69
Weighted-average shares outstanding:
Basic	21,070		20,969		21,058		20,969
Diluted	21,666		21,457		21,648		21,425
Cash dividends declared per share	$	0.07	$	0.06	$	0.14	$	0.12

See accompanying notes to condensed consolidated financial statements.

3

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Changes in Stockholders' Equity (Unaudited)

	Shares of Common Stock	Common Stock		Additional Paid-in Capital		Retained Earnings			Accumu- lated  Other Compre- hensive Income (Loss)			Total Stock- holders' Equity
	(in thousands)
Balance at December 31, 2016	20,969	$	210	$	153,353	$	53,640		$	3,011		$	210,214
Stock-based compensation	—	—		324		—			—			324
Dividends declared	—	—		—		(2,516		)	—			(2,516		)
Other comprehensive income, net of tax	—	—		—		—			3,247			3,247
Net income	—	—		—		14,776			—			14,776
Balance at June 30, 2017	20,969	$	210	$	153,677	$	65,900		$	6,258		$	226,045
Balance at December 31, 2017	21,036	$	210	$	155,082	$	73,502		$	9,395		$	238,189
Cumulative effect adjustment - net unrealized gains on equity securities, net of tax	—	—		—		6,490			(6,490		)	—
Balance at January 1, 2018, as adjusted	21,036	210		155,082		79,992			2,905			238,189
Reclassification of tax effects resulting from the TCJA	—	—		—		(1,308		)	1,308			—
Issuance of common stock under stock-based compensation plan	133	1		623		—			—			624
Stock-based compensation	—	—		559		—			—			559
Dividends declared	—	—		—		(2,954		)	—			(2,954		)
Other comprehensive loss, net of tax	—	—		—		—			(5,872		)	(5,872		)
Net income	—	—		—		17,399			—			17,399
Balance at June 30, 2018	21,169	$	211	$	156,264	$	93,129		$	(1,659	)	$	247,945

See accompanying notes to condensed consolidated financial statements.

4

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows (Unaudited)

	Six Months Ended June 30,
	2018			2017
	(in thousands)
Operating activities:
Net cash provided by operating activities	$	50,423		$	40,782
Investing activities:
Purchase of property and equipment	(458		)	(62		)
Change in short-term investments, net	—			(14,481		)
Purchases – fixed-maturity securities	(110,023		)	(21,161		)
Purchases – equity securities	(7,199		)	(6,301		)
Sales – fixed-maturity securities	3,913			719
Sales – equity securities	1,910			—
Maturities and calls – fixed-maturity securities	61,681			45,707
Net cash (used in) provided by investing activities	(50,176		)	4,421
Financing activities:
Proceeds from stock options exercised	624			—
Dividends paid	(2,948		)	(2,516		)
Payments on capital lease	—			(9		)
Net cash used in financing activities	(2,324		)	(2,525		)
Net change in cash and cash equivalents	(2,077		)	42,678
Cash and cash equivalents at beginning of year	81,747			50,752
Cash and cash equivalents at end of period	$	79,670		$	93,430

See accompanying notes to condensed consolidated financial statements.

5

KINSALE CAPITAL GROUP, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements (Unaudited)

1.    Summary of significant accounting policies

Basis of presentation

The accompanying condensed consolidated financial statements and notes have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and do not contain all of the information and footnotes required by U.S. GAAP for complete financial statements. For a more complete description of the Company’s business and accounting policies, these condensed consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements of Kinsale Capital Group, Inc. and its wholly owned subsidiaries (the "Company") included in the Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of management, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included. Such adjustments consist only of normal recurring items. All significant intercompany balances and transactions have been eliminated in consolidation. Interim results are not necessarily indicative of results of operations for the full year.

Use of estimates

The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions.

Recently adopted accounting pronouncements

ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"), which eliminated the available-for-sale classification for equity investments, required changes in unrealized gains and losses in fair value of equity investments to be recognized in net income, required public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, required separate presentation of financial assets and financial liabilities by measurement category and form of financial asset, and eliminated the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that was required to be disclosed for financial instruments measured at amortized cost. Effective January 1, 2018, the Company adopted this ASU and recorded a cumulative-effect adjustment, which reclassified unrealized gains of $6.5 million, net of taxes, on equity investments from accumulated other comprehensive income ("AOCI") to retained earnings. Prior periods have not been restated to conform to the current presentation. 

ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

In February 2018, the FASB issued ASU 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which permitted companies to reclassify the disproportionate income tax effects of the Tax Cuts and Jobs Act of 2017 (the "TCJA") on items within AOCI to retained earnings. The FASB refers to these amounts as "stranded tax effects." The guidance is effective for all companies for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. Effective January 1,

6

2018, the Company elected to early adopt this ASU and to reclassify the stranded income tax effects for available-for-sale securities of $1.3 million from AOCI to retained earnings. Other than those effects related to the TCJA, the Company uses the portfolio approach to release stranded tax effects in AOCI related to its available-for-sale fixed-maturity securities and its available-for-sale equity securities (prior to the adoption of ASU 2016-01). Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities and available-for-sale equity securities are liquidated, sold or extinguished.

Prospective accounting pronouncements

ASU 2016-02, Leases (Topic 842)

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" to improve the financial reporting of leasing transactions. Under this ASU, lessees will recognize a right-of-use asset and corresponding liability on the balance sheet for all leases, except for leases covering a period of fewer than 12 months. The liability is to be initially measured at the present value of the future minimum lease payments taking into account renewal options if applicable plus initial incremental direct costs such as commissions. The minimum payments are discounted using the rate implicit in the lease or, if not known, the lessee’s incremental borrowing rate at the inception of the lease. The lessee’s income statement treatment for leases will vary depending on the nature of what is being leased. A financing type lease is present when, among other matters, the asset is being leased for a substantial portion of its economic life or has an end-of-term title transfer or a bargain purchase option as in today’s practice. The payment of the liability set up for such leases will be apportioned between interest and principal; the right-of use asset will be generally amortized on a straight-line basis. If the lease does not qualify as a financing type lease, it will be accounted for on the income statement as rent on a straight-line basis. This ASU is effective for annual and interim reporting periods beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2016-13, Financial Instruments – Credit Losses (Topic 326)

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments – Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. Current GAAP delays the recognition of credit losses until it is probable a loss has been incurred. The update will require a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale debt securities will also be recorded through an allowance for credit losses. However, the amendments would limit the amount of the allowance to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under current GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. This ASU is effective for annual and interim reporting periods beginning after December 15, 2019. Early adoption is permitted beginning after December 15, 2018. Upon adoption, the update will be applied using the modified-retrospective approach, by which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period presented. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2017-08, Premium Amortization on Purchased Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, "Premium Amortization on Purchased Callable Debt Securities," which shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. This ASU is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted, including in an interim period. Upon adoption, the update will be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period presented. The Company does not expect the adoption of ASU 2017-08 to have a material impact on its financial statements.

7

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

2.     Investments

Available-for-sale investments

The following tables summarize the available-for-sale investments at June 30, 2018 and December 31, 2017:

	June 30, 2018
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	608	$	2	$	(3	)	$	607
Obligations of states, municipalities and political subdivisions	155,799		1,672		(1,870		)	155,601
Corporate and other securities	85,672		221		(885		)	85,008
Asset-backed securities	125,030		119		(1,101		)	124,048
Residential mortgage-backed securities	105,309		384		(3,035		)	102,658
Total available-for-sale investments	$	472,418	$	2,398	$	(6,894	)	$	467,922

	December 31, 2017
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,108	$	4	$	(14	)	$	9,098
Obligations of states, municipalities and political subdivisions	161,012		3,726		(412		)	164,326
Corporate and other securities	71,224		579		(172		)	71,631
Asset-backed securities	95,223		405		(268		)	95,360
Residential mortgage-backed securities	85,688		466		(1,378		)	84,776
Total fixed-maturity securities	422,255		5,180		(2,244		)	425,191
Equity securities:
Exchange traded funds	26,041		8,339		—			34,380
Nonredeemable preferred stock	19,875		108		(231		)	19,752
Total equity securities	45,916		8,447		(231		)	54,132
Total available-for-sale investments	$	468,171	$	13,627	$	(2,475	)	$	479,323

Available-for-sale securities in a loss position

The Company regularly reviews all available-for-sale securities with unrealized losses to assess whether the decline in the securities’ fair value is deemed to be an other-than-temporary impairment ("OTTI"). The Company considers a number of factors in completing its OTTI review, including the length of time and the extent to which fair value

8

has been below cost and the financial condition of an issuer. In addition to specific issuer information, the Company also evaluates the current market and interest rate environment. Generally, a change in a security’s value caused by a change in the market or interest rate environment does not constitute an OTTI, but rather a temporary decline in fair value.

For fixed maturities, the Company considers whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before recovery, the credit quality of the issuer and the ability to recover all amounts outstanding when contractually due. When assessing whether it intends to sell a fixed-maturity security or if it is likely to be required to sell a fixed-maturity security before recovery of its amortized cost, the Company evaluates facts and circumstances including, but not limited to, decisions to reposition the investment portfolio, potential sales of investments to meet cash flow needs and potential sales of investments to capitalize on favorable pricing. For equity securities prior to the adoption of ASU 2016-01, the Company considered the near-term prospects of an issuer and its ability and intent to hold the security for a period of time sufficient to allow for anticipated recovery.

For fixed maturities where a decline in fair value is considered to be other-than-temporary and the Company intends to sell the security, or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost, an impairment is recognized in net income based on the fair value of the security at the time of assessment, resulting in a new cost basis for the security. If the decline in fair value of a fixed-maturity security below its amortized cost is considered to be other-than-temporary based upon other considerations, the Company compares the estimated present value of the cash flows expected to be collected to the amortized cost of the security. The extent to which the estimated present value of the cash flows expected to be collected is less than the amortized cost of the security represents the credit-related portion of the OTTI, which is recognized in net income, resulting in a new cost basis for the security. Any remaining decline in fair value represents the noncredit portion of the OTTI, which is recognized in other comprehensive income. For equity securities prior to the adoption of ASU 2016-01, a decline in fair value that was considered to be other-than-temporary was recognized in net income based on the fair value of the security at the time of assessment, resulting in a new cost basis for the security.

The following tables summarize gross unrealized losses and fair value for available-for-sale securities by length of time that the securities have continuously been in an unrealized loss position:

	June 30, 2018
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	—	$	—		$	495	$	(3	)	$	495	$	(3	)
Obligations of states, municipalities and political subdivisions	57,877		(742		)	34,451		(1,128		)	92,328		(1,870		)
Corporate and other securities	64,209		(763		)	7,382		(122		)	71,591		(885		)
Asset-backed securities	73,520		(823		)	9,511		(278		)	83,031		(1,101		)
Residential mortgage-backed securities	22,523		(362		)	52,224		(2,673		)	74,747		(3,035		)
Total fixed-maturity securities	$	218,129	$	(2,690	)	$	104,063	$	(4,204	)	$	322,192	$	(6,894	)

9

At June 30, 2018, the Company held 324 fixed-maturity securities in an unrealized loss position with a total estimated fair value of $322.2 million and gross unrealized losses of $6.9 million. Of these securities, 122 were in a continuous unrealized loss position for greater than one year. As discussed above, the Company regularly reviews all fixed-maturity securities within its investment portfolio to determine whether any impairment has occurred. Unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At June 30, 2018, 89.5% of the Company’s fixed-maturity securities were rated "A-" or better and all of the Company’s fixed-maturity securities made expected coupon payments under the contractual terms of the securities. Management concluded that there were no other-than-temporary impairments from fixed-maturity securities with unrealized losses for the six months ended June 30, 2018.

	December 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	3,497	$	(2	)	$	5,488	$	(12	)	$	8,985	$	(14	)
Obligations of states, municipalities and political subdivisions	7,258		(36		)	38,143		(376		)	45,401		(412		)
Corporate and other securities	30,944		(98		)	13,444		(74		)	44,388		(172		)
Asset-backed securities	27,609		(108		)	10,706		(160		)	38,315		(268		)
Residential mortgage-backed securities	9,081		(83		)	57,262		(1,295		)	66,343		(1,378		)
Total fixed-maturity securities	78,389		(327		)	125,043		(1,917		)	203,432		(2,244		)
Equity securities:
Exchange traded funds	130		—			—		—			130		—
Nonredeemable preferred stocks	10,649		(231		)	—		—			10,649		(231		)
Total equity securities	10,779		(231		)	—		—			10,779		(231		)
Total investments available for sale	$	89,168	$	(558	)	$	125,043	$	(1,917	)	$	214,211	$	(2,475	)

At December 31, 2017, the Company held 195 fixed-maturity securities in an unrealized loss position with a total estimated fair value of $203.4 million and gross unrealized losses of $2.2 million. Of those securities, 126 were in a continuous unrealized loss position for greater than one year. Unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At December 31, 2017, 91.1% of the Company’s fixed-maturity securities were rated "A-" or better and all of the Company’s fixed-maturity securities made expected coupon payments under the contractual terms of the securities. At December 31, 2017, the Company held 13 securities in its equity portfolio with a total estimated fair value of $10.8 million and gross unrealized losses of $0.2 million. None of these securities were in a continuous unrealized loss position for greater than one year. Based on its review, the Company concluded that were no other-than-temporary impairments from fixed-maturity or equity securities with unrealized losses for the year ended December 31, 2017.

10

Contractual maturities of available-for-sale fixed-maturity securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at June 30, 2018 are summarized, by contractual maturity, as follows:

	June 30, 2018
	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	24,944	$	24,857
Due after one year through five years	49,867		49,735
Due after five years through ten years	39,180		39,529
Due after ten years	128,088		127,095
Asset-backed securities	125,030		124,048
Residential mortgage-backed securities	105,309		102,658
Total fixed maturities	$	472,418	$	467,922

Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties, and the lenders may have the right to put the securities back to the borrower.

Net investment income

The following table presents the components of net investment income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Interest:
Taxable bonds	$	2,239		$	1,508		$	4,000		$	3,045
Tax exempt municipal bonds	1,083			818			2,168			1,612
Cash equivalents and short-term investments	217			167			477			254
Dividends on equity securities	512			185			924			295
Gross investment income	4,051			2,678			7,569			5,206
Investment expenses	(269		)	(246		)	(558		)	(488		)
Net investment income	$	3,782		$	2,432		$	7,011		$	4,718

11

Realized investment gains and losses

The following table presents realized investment gains and losses for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,					Six Months Ended June 30,
	2018			2017		2018			2017
	(in thousands)
Fixed-maturity securities:
Realized gains	$	189		$	24	$	244		$	24
Realized losses	(4		)	—		(4		)	(32		)
Net realized gains (losses) fixed-maturity securities	185			24		240			(8		)
Equity securities:
Realized gains	—			—		57			—
Realized losses	(11		)	—		(11		)	—
Net realized gains (losses) equity securities	(11		)	—		46			—
Net realized investment gains (losses)	$	174		$	24	$	286		$	(8	)

Change in net unrealized gains (losses) on investments

For the three and six months ended June 30, 2018, the changes in net unrealized losses for fixed-maturity securities were $1.3 million and $7.4 million, respectively. For the three and six months ended June 30, 2017, the changes in net unrealized gains for fixed-maturity securities were $2.8 million and $3.5 million and the change in net unrealized gains for equity securities was $0.6 million and $1.5 million, respectively.

Insurance – statutory deposits

The Company had invested assets with a carrying value of $6.9 million and $7.1 million on deposit with state regulatory authorities at June 30, 2018 and December 31, 2017, respectively.

Payable for investments purchased

The Company recorded a payable for investments purchased, not yet settled, of $7.7 million at June 30, 2018 and $1.0 million at December 31, 2017. The payable balances were included in the "other liabilities" line item of the balance sheet and treated as non-cash transactions for purposes of cash flow presentation. 

3.     Fair value measurements

Fair value was estimated for each class of financial instrument for which it was practical to estimate fair value. Fair value is defined as the price in the principal market that would be received for an asset to facilitate an orderly transaction between market participants on the measurement date. Market participants are assumed to be independent, knowledgeable, able and willing to transact an exchange and not acting under duress. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and

12

the lowest priority to unobservable inputs (Level 3 measurements). Adjustments to transaction prices or quoted market prices may be required in illiquid or disorderly markets in order to estimate fair value.

The three levels of the fair value hierarchy are defined as follows:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

Fair values of the Company's investment portfolio are estimated using unadjusted prices obtained by its investment manager from third party pricing services, where available. For securities where the Company is unable to obtain fair values from a pricing service or broker, fair values are estimated using information obtained from the Company's investment manager. Management performs several procedures to ascertain the reasonableness of investment values included in the condensed consolidated financial statements including 1) obtaining and reviewing internal control reports from the Company's investment manager that obtain fair values from third party pricing services, 2) discussing with the Company's investment manager its process for reviewing and validating pricing obtained from outside pricing services and 3) reviewing the security pricing received from the Company's investment manager and monitoring changes in unrealized gains and losses. The Company has evaluated the various types of securities in its investment portfolio to determine an appropriate fair value hierarchy level based upon trading activity and the observability of market inputs.

The following tables present the balances of assets measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017, by level within the fair value hierarchy.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	607	$	—	$	—	$	607
Obligations of states, municipalities and political subdivisions	—		155,601		—		155,601
Corporate and other securities	—		85,008		—		85,008
Asset-backed securities	—		124,048		—		124,048
Residential mortgage-backed securities	—		102,658		—		102,658
Total fixed maturities	607		467,315		—		467,922
Equity securities:
Exchange traded funds	39,434		—		—		39,434
Nonredeemable preferred stock	—		18,785		—		18,785
Total equity securities	39,434		18,785		—		58,219
Total	$	40,041	$	486,100	$	—	$	526,141

13

	December 31, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,098	$	—	$	—	$	9,098
Obligations of states, municipalities and political subdivisions	—		164,326		—		164,326
Corporate and other securities	—		71,631		—		71,631
Asset-backed securities	—		95,360		—		95,360
Residential mortgage-backed securities	—		84,776		—		84,776
Total fixed maturities	9,098		416,093		—		425,191
Equity securities:
Exchange traded funds	34,380		—		—		34,380
Nonredeemable preferred stock	—		19,752		—		19,752
Total equity securities	34,380		19,752		—		54,132
Total	$	43,478	$	435,845	$	—	$	479,323

There were no transfers into or out of Level 1 and Level 2 during the three months ended June 30, 2018. There were no assets or liabilities measured at fair value on a nonrecurring basis as of June 30, 2018 or December 31, 2017.

Due to the relatively short-term nature of cash and cash equivalents, short-term investments, receivables and payables, their carrying amounts are reasonable estimates of fair value.

4.     Deferred policy acquisition costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Balance, beginning of period	$	12,768		$	10,501		$	11,775		$	10,150
Policy acquisition costs deferred:
Direct commissions	10,298			8,625			19,675			16,505
Ceding commissions	(2,609		)	(2,392		)	(5,150		)	(4,983		)
Other underwriting and policy acquisition costs	694			756			1,503			1,517
Policy acquisition costs deferred	8,383			6,989			16,028			13,039
Amortization of net policy acquisition costs	(7,028		)	(5,912		)	(13,680		)	(11,611		)
Balance, end of period	$	14,123		$	11,578		$	14,123		$	11,578

14

5.     Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses for the three and six months ended June 30, 2018 and 2017 consist of the following:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	8,756		$	7,544		$	17,135		$	14,693
Ceding commissions	(2,464		)	(2,466		)	(4,908		)	(4,812		)
Other operating expenses	6,227			5,414			12,690			11,905
Total	$	12,519		$	10,492		$	24,917		$	21,786

Other operating expenses within underwriting, acquisition and insurance expenses include salaries, bonus and employee benefits expenses of $5.3 million and $4.5 million for the three months ended June 30, 2018 and 2017, respectively. Salaries, bonus and employee benefits expenses were $10.3 million and $9.5 million for the six months ended June 30, 2018 and 2017, respectively.

6.    Stock-based compensation

On July 27, 2016, the Kinsale Capital Group, Inc. 2016 Omnibus Incentive Plan (the "2016 Incentive Plan") became effective. The 2016 Incentive Plan provides for grants of stock options, stock appreciation rights, restricted stock, other stock-based awards and other cash-based awards to directors, officers and other employees, as well as independent contractors or consultants providing consulting or advisory services to the Company. The number of shares of common stock available for issuance under the 2016 Incentive Plan may not exceed 2,073,832. The compensation cost that has been charged against income for share-based compensation arrangements was $0.6 million and $0.3 million for the six months ended June 30, 2018 and 2017, respectively.

Restricted Stock Awards

During the six months ended June 30, 2018, the Board of Directors approved, and the Company granted, restricted stock awards under the 2016 Incentive Plan. The restricted stock awards were valued on the date of grant and will vest over a period of one to four years corresponding to the anniversary date of the grants. The fair value of restricted stock awards was determined based on the closing trading price of the Company’s shares on the grant date or, if no shares were traded on the grant date, the last preceding date for which there was a sale of shares. Except for restrictions placed on the transferability of restricted stock, holders of unvested restricted stock have full stockholder’s rights, including voting rights and the right to receive cash dividends. Unvested shares of restricted stock awards and accrued dividends, if any, are forfeited upon the termination of service to or employment with the Company.

15

A summary of all restricted stock activity under the equity compensation plans for the six months ended June 30, 2018 is as follows:

	For the Six Months Ended June 30, 2018
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	—	$	—
Granted	94,270	$	52.99
Vested	—	$	—
Forfeited	—	$	—
Nonvested outstanding at the end of the period	94,270	$	52.99

As of June 30, 2018, the Company had $4.7 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 3.8 years.

Stock Options

On July 27, 2016, the Board of Directors approved, and the Company granted, 1,036,916 stock options with an exercise price equal to the Initial Public Offering price of $16.00 per share and a weighted-average grant-date fair value of $2.71 per share. The options have a maximum contractual term of 10 years and vest in 4 equal annual installments following the date of the grant.

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

⁽¹⁾ Expected volatility was based on the Company’s competitors within the industry.

⁽²⁾ Expected life was calculated using the simplified method, which was an average of the contractual term of the option and its ordinary vesting period, as the Company did not have sufficient historical data for determining the expected term of our stock option awards.

16

A summary of option activity as of June 30, 2018, and changes during the period then ended is presented below:

	Number of Shares		Weighted-average exercise price		Weighted-average remaining years of contractual term	Aggregate intrinsic value (in thousands)
Outstanding at January 1, 2018	930,440		$	16.00
Granted	—		—
Forfeited	(8,985	)	16.00
Exercised	(39,027	)	16.00
Outstanding at June 30, 2018	882,428		$	16.00	8.1	$	34,291
Exercisable at June 30, 2018	179,803		$	16.00	8.1	$	6,987

The total intrinsic value of options exercised during the six months ended June 30, 2018 was $1.4 million. There were no options exercised during the six months ended June 30, 2017. As of June 30, 2018, the Company had $1.3 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 2.1 years.

7.    Earnings per share

The following represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in thousands, except per share data)
Net income	$	10,112	$	8,495	$	17,399	$	14,776
Weighted average common shares outstanding - basic	21,070		20,969		21,058		20,969
Effect of potential dilutive securities:
Conversion of stock options	593		488		588		456
Conversion of restricted stock	3		—		2		—
Weighted average common shares outstanding - diluted	21,666		21,457		21,648		21,425
Earnings per common share:
Basic	$	0.48	$	0.41	$	0.83	$	0.70
Diluted	$	0.47	$	0.40	$	0.80	$	0.69

There were approximately 88 thousand anti-dilutive stock awards for the three and six months ended June 30, 2018. There were no anti-dilutive stock awards for the three and six months ended June 30, 2017.

17

8. Income taxes

On December 22, 2017, the President of the United States signed into law the TCJA. The legislation significantly changed U.S. tax law by, among other things, lowering corporate income tax rates from 35% to 21% effective January 1, 2018, and modifying the manner in which property and casualty insurance loss reserves are computed for federal income tax purposes. The Company records a deduction for unpaid losses and loss adjustment expenses when computing its taxable income. Prior to the new legislation, the deduction was discounted using interest rates and loss payment patterns prescribed by the U.S. Treasury. The TCJA changed the prescribed interest rates, which are now based on corporate bond yield curves, and extended the applicable time periods for the loss payment pattern period for long-tailed lines of business. Beginning in 2018, a transition rule will spread the adjustments related to pre-effective-date losses and loss adjustment expenses over the next eight years.

U.S. GAAP requires companies to recognize the effect of tax law changes in the period of enactment. The SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the TCJA. The TCJA did not specify the application of certain elements of the legislation and the U.S. Treasury has yet to issue interpretive guidance to specify the loss payment patterns and the corporate bond yield curve under the new law for 2018. The Company recognized provisional tax amounts of $3.5 million related to the transition adjustment for loss discounting, which was included in its components of deferred tax assets and liabilities as part of its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from these provisional amounts due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company may take as a result of the TCJA. During the six months ended June 30, 2018, there were no changes to these amounts and no measurement period adjustments were recorded. The accounting is expected to be complete when the U.S. Treasury issues further guidance and the Company has completed its calculations.

The Company uses the estimated annual effective tax rate method for calculating its tax provision in interim periods, which represents the Company's best estimate of the effective tax rate expected for the full year. The estimated annual effective tax rate typically differs from the U.S. statutory tax rate primarily as a result of tax-exempt investment income and any discrete items recognized during the period. The Company's effective tax rate was 18.9% and 18.2% for the three and six months ended June 30, 2018, respectively. The Company's effective tax rate was 33.4% and 33.0% for the three and six months ended June 30, 2017, respectively. The decrease in the effective tax rates in the second quarter and first half of 2018 compared to the same periods in the prior year was primarily due to the impact of the TCJA, which lowered the U.S. statutory tax rate from 35% to 21% starting January 1, 2018, and the recognition of tax benefits related to stock options exercised during the second quarter and first six months of 2018.

18

9.     Reserves for unpaid losses and loss adjustment expenses

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	June 30,
	2018			2017
	(in thousands)
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	$	267,493		$	194,602
Commutation of MLQS	—			27,929
Adjusted net reserves for losses and loss adjustment expenses, beginning of year	267,493			222,531
Incurred losses and loss adjustment expenses:
Current year	62,389			52,902
Prior years	(3,523		)	(8,936		)
Total net losses and loss adjustment expenses incurred	58,866			43,966
Payments:
Current year	1,858			2,185
Prior years	33,309			19,508
Total payments	35,167			21,693
Net reserves for unpaid losses and loss adjustment expenses, end of period	291,192			244,804
Reinsurance recoverable on unpaid losses	53,373			39,624
Gross reserves for unpaid losses and loss adjustment expenses, end of period	$	344,565		$	284,428

During the six months ended June 30, 2018, the reserves for unpaid losses and loss adjustment expenses held at December 31, 2017 developed favorably by $3.5 million. The favorable development was primarily attributable to the 2017 accident year of $2.5 million, the 2016 accident year of $3.0 million and the 2015 accident year of $0.8 million, which resulted from reported losses emerging at a lower level than expected. This favorable development was offset in part by adverse development from the 2011 through 2014 accident years of $2.8 million.

During the six months ended June 30, 2017, the reserves for unpaid losses and loss adjustment expenses held at December 31, 2016 developed favorably by $8.9 million. The favorable development was attributable primarily to the 2016 accident year of $5.8 million and the 2015 accident year of $3.7 million, which was due to reported losses emerging at a lower level than expected. The favorable development was offset in part by adverse development of $1.1 million for the 2013 accident year.

Multi-line quota share reinsurance

Effective January 1, 2017, the Company commuted its multi-line quota share treaty ("MLQS") covering the period January 1, 2015 to December 31, 2015, which reduced reinsurance recoverables on unpaid losses by approximately $27.9 million. The commutation did not have any effect on the Company's results of operations or cash flows for the applicable period.

19

10.     Reinsurance

The following table summarizes the effect of reinsurance on premiums written and earned for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Written:
Direct	$	69,981		$	57,753		$	133,828		$	110,615
Assumed	—			—			—			—
Ceded	(9,090		)	(7,980		)	(17,846		)	(16,680		)
Net written	$	60,891		$	49,773		$	115,982		$	93,935
Earned:
Direct	$	59,603		$	51,304		$	116,196		$	99,766
Assumed	—			—			—			—
Ceded	(8,710		)	(8,252		)	(17,242		)	(16,281		)
Net earned	$	50,893		$	43,052		$	98,954		$	83,485

Incurred losses and loss adjustment expenses were net of reinsurance (ceded incurred losses and loss adjustment expenses) of $5.0 million and $(0.6) million for the three months ended June 30, 2018 and 2017, respectively. Ceded incurred losses and loss adjustment expenses were $7.9 million and $1.8 million for the six months ended June 30, 2018 and 2017, respectively. At June 30, 2018, reinsurance recoverables on paid and unpaid losses were $1.0 million and $53.4 million, respectively. At December 31, 2017, reinsurance recoverables on paid and unpaid losses were $1.4 million and $48.2 million, respectively.

20

11.     Other comprehensive (loss) income

The following table summarizes the components of other comprehensive (loss) income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Unrealized (losses) gains arising during the period, before income taxes:
Fixed-maturity securities	$	(1,101	)	$	2,792		$	(7,193	)	$	3,489
Equity securities (1)	—			577			—			1,498
Total unrealized (losses) gains arising during the period, before income taxes	(1,101		)	3,369			(7,193		)	4,987
Income taxes	232			(1,179		)	1,511			(1,745		)
Unrealized (losses) gains arising during the period, net of income taxes	(869		)	2,190			(5,682		)	3,242
Less reclassification adjustment:
Net realized gains (losses) on fixed-maturity securities, before income taxes	185			24			240			(8		)
Income taxes	(38		)	(8		)	(50		)	3
Reclassification adjustment included in net income	147			16			190			(5		)
Other comprehensive (loss) income	$	(1,016	)	$	2,174		$	(5,872	)	$	3,247

⁽¹⁾ Adoption of ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities," which was effective January 1, 2018, eliminated the available-for-sale classification for equity investments and required changes in unrealized gains and losses in the fair value of equity securities to be recognized in net income.

The sale of an available-for-sale fixed-maturity security results in amounts being reclassified from accumulated other comprehensive income to realized gains or losses in current period earnings. The related tax effect of the reclassification adjustment is recorded in income tax expense in current period earnings. See Note 2 for additional information.

21

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

The discussion and analysis below includes certain forward-looking statements that are subject to risks, uncertainties and other factors described in "Risk Factors" in the Annual Report on Form 10-K for the year ended December 31, 2017. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of many factors.

The results of operations for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the full year ended December 31, 2018, or for any other future period. The following discussion should be read in conjunction with the unaudited condensed consolidated financial statements and the notes thereto included in Part I, Item 1 of this Quarterly Report, and in conjunction with our audited consolidated financial statements and the notes thereto included in the Annual Report on Form 10-K for the year ended December 31, 2017.

References to the "Company," "Kinsale," "we," "us," and "our" are to Kinsale Capital Group, Inc. and its subsidiaries, unless the context otherwise requires.

Overview

Founded in 2009, Kinsale is a specialty insurance company. Kinsale focuses exclusively on the excess and surplus lines ("E&S") market in the U.S., where we use our underwriting expertise to write coverages for hard-to-place small business risks and personal lines risks. We market these insurance products in all 50 states, the District of Columbia, the Commonwealth of Puerto Rico and the U.S. Virgin Islands, primarily through a network of independent insurance brokers.

We have one reportable segment, our Excess and Surplus Lines Insurance segment, which offers property and casualty ("P&C") insurance products through the E&S market. For the first six months of 2018, the percentage breakdown of our gross written premiums was 91.4% casualty and 8.6% property. Our underwriting divisions include construction, small business, general casualty, energy, excess casualty, professional liability, life sciences, product liability, allied health, health care, commercial property, environmental, management liability, inland marine, public entity and commercial insurance. We also write a small amount of homeowners insurance in the personal lines market, which in aggregate represented 4.7% of our gross written premiums in the first six months of 2018.

Components of our results of operations

Gross written premiums

Gross written premiums are the amount received or to be received for insurance policies written or assumed by us during a specific period of time without reduction for policy acquisition costs, reinsurance costs or other deductions. The volume of our gross written premiums in any given period is generally influenced by:

• New business submissions;

• Conversion of new business submissions into policies;

• Renewals of existing policies; and

• Average size and premium rate of bound policies.

We earn insurance premiums on a pro rata basis over the term of a policy. Our insurance policies generally have a term of one year. Net earned premiums represent the earned portion of our gross written premiums, less that portion of our gross written premiums that is ceded under our reinsurance agreements.

Ceded written premiums

Ceded written premiums are the amount of gross written premiums ceded to reinsurers. We enter into reinsurance contracts to limit our exposure to potential large losses. Ceded written premiums are earned over the reinsurance contract

22

period in proportion to the period of risk covered. The volume of our ceded written premiums is impacted by the level of our gross written premiums and any decision we make to increase or decrease retention levels.

Net investment income

Net investment income is an important component of our results of operations. We earn investment income on our portfolio of cash and invested assets. Our cash and invested assets are primarily comprised of fixed-maturity securities, and may also include cash and cash equivalents, equity securities and short-term investments. The principal factors that influence net investment income are the size of our investment portfolio and the yield on that portfolio. As measured by amortized cost (which excludes changes in fair value, such as from changes in interest rates), the size of our investment portfolio is mainly a function of our invested equity capital along with premiums we receive from our insureds less payments on policyholder claims.

Net investment gains (losses)

Net investment gains (losses) are a function of the difference between the amount received by us on the sale of a security and the security's amortized cost, unrealized gains and losses on our equity portfolio, as well as any "other-than-temporary" impairments recognized in earnings.

Losses and loss adjustment expenses

Losses and loss adjustment expenses are a function of the amount and type of insurance contracts we write and the loss experience associated with the underlying coverage. In general, our losses and loss adjustment expenses are affected by:

• Frequency of claims associated with the particular types of insurance contracts that we write;

• Trends in the average size of losses incurred on a particular type of business;

• Mix of business written by us;

• Changes in the legal or regulatory environment related to the business we write;

• Trends in legal defense costs;

• Wage inflation; and

• Inflation in medical costs.

Losses and loss adjustment expenses are based on an actuarial analysis of the estimated losses, including losses incurred during the period and changes in estimates from prior periods. Losses and loss adjustment expenses may be paid out over a period of years.

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses include policy acquisition costs and other underwriting expenses. Policy acquisition costs are principally comprised of the commissions we pay our brokers, net of ceding commissions we receive on business ceded under certain reinsurance contracts. Policy acquisition costs that are directly related to the successful acquisition of those policies are deferred. The amortization of such policy acquisition costs is charged to expense in proportion to premium earned over the policy life. Other underwriting expenses represent the general and administrative expenses of our insurance business including employment costs, telecommunication and technology costs, the costs of our lease, and legal and auditing fees.

Income tax expense

Currently all of our income tax expense relates to federal income taxes. Kinsale Insurance Company is generally not subject to income taxes in the states in which it operates; however, our non-insurance subsidiaries are subject to state income taxes. The amount of income tax expense or benefit recorded in future periods will depend on the jurisdictions in which we operate and the tax laws and regulations in effect.

23

Key metrics

We discuss certain key metrics, described below, which provide useful information about our business and the operational factors underlying our financial performance.

Underwriting income is a non-GAAP financial measure. We define underwriting income as pre-tax income, excluding net investment income, net investment gains and losses, and other income and expenses. See "—Reconciliation of non-GAAP financial measures" for a reconciliation of net income to underwriting income in accordance with GAAP.

Loss ratio, expressed as a percentage, is the ratio of losses and loss adjustment expenses to net earned premiums, net of the effects of reinsurance.

Expense ratio, expressed as a percentage, is the ratio of underwriting, acquisition and insurance expenses to net earned premiums.

Combined ratio is the sum of the loss ratio and the expense ratio. A combined ratio under 100% generally indicates an underwriting profit. A combined ratio over 100% generally indicates an underwriting loss.

Return on equity is net income expressed on an annualized basis as a percentage of average beginning and ending stockholders’ equity during the period. Our overall financial goal is to produce a return on equity in the mid-teens or higher over the long-term.

Net retention ratio is the ratio of net written premiums to gross written premiums.

Three months ended June 30, 2018 compared to three months ended June 30, 2017

The following table summarizes our results of operations for the three months ended June 30, 2018 and 2017:

	Three Months Ended June 30,
($ in thousands)	2018			2017			Change			% Change
Gross written premiums	$	69,981		$	57,753		$	12,228		21.2	%
Ceded written premiums	(9,090		)	(7,980		)	(1,110		)	13.9	%
Net written premiums	$	60,891		$	49,773		$	11,118		22.3	%
Net earned premiums	$	50,893		$	43,052		$	7,841		18.2	%
Losses and loss adjustment expenses	29,967			21,859			8,108			37.1	%
Underwriting, acquisition and insurance expenses	12,519			10,492			2,027			19.3	%
Underwriting income (1)	8,407			10,701			(2,294		)	(21.4	)%
Other income (expenses), net	4			(402		)	406			(101.0	)%
Net investment income	3,782			2,432			1,350			55.5	%
Net unrealized gains on equity securities	94			—			94			NM
Net realized gains on investments	174			24			150			625.0	%
Income before taxes	12,461			12,755			(294		)	(2.3	)%
Income tax expense	2,349			4,260			(1,911		)	(44.9	)%
Net income	$	10,112		$	8,495		$	1,617		19.0	%
Annualized return on equity	16.6		%	15.4		%
Loss ratio	58.9		%	50.8		%
Expense ratio	24.6		%	24.4		%
Combined ratio	83.5		%	75.2		%

NM - Percentage change not meaningful

24

⁽¹⁾ Underwriting income is a non-GAAP financial measure. See "—Reconciliation of non-GAAP financial measures" for a reconciliation of net income to underwriting income in accordance with GAAP.

Net income was $10.1 million for the three months ended June 30, 2018 compared to $8.5 million for the three months ended June 30, 2017, an increase of 19.0%. The increase in net income for the second quarter of 2018 over the second quarter of 2017 was due to a lower effective tax rate of 18.9%, resulting from the TCJA and the recognition of tax benefits related to stock options exercised during the second quarter of 2018, and higher net investment income.

Underwriting income was $8.4 million for the three months ended June 30, 2018 compared to $10.7 million for the three months ended June 30, 2017, a decrease of 21.4%. The corresponding combined ratios were 83.5% for the three months ended June 30, 2018 compared to 75.2% for the three months ended June 30, 2017. The decrease in our underwriting income was due to both lower net favorable prior accident year loss reserve development and a higher current accident year loss ratio, offset in part by higher net earned premiums.

Premiums

Our gross written premiums were $70.0 million for the three months ended June 30, 2018 compared to $57.8 million for the three months ended June 30, 2017, an increase of $12.2 million, or 21.2%. The increase in gross written premiums for the second quarter of 2018 over the same period last year was due to higher submissions activity across most lines of business. The average premium on a policy written was approximately $7,200 in the second quarter of 2018 compared to approximately $7,800 in the second quarter of 2017. The decrease in the average premium per policy written was due to changes in the mix of business during the second quarter of 2018 compared to the same period last year.

Net written premiums increased by $11.1 million, or 22.3%, to $60.9 million for the three months ended June 30, 2018 from $49.8 million for the three months ended June 30, 2017. The increase in net written premiums for the second quarter of 2018 compared to the same period last year was primarily due to higher gross written premiums.The net retention ratio was 87.0% for the three months ended June 30, 2018 compared to 86.2% for the three months ended June 30, 2017.

Net earned premiums increased by $7.8 million, or 18.2%, to $50.9 million for the three months ended June 30, 2018 from $43.1 million for the three months ended June 30, 2017 due to growth in gross written premiums.

Loss ratio

The loss ratio was 58.9% for the three months ended June 30, 2018 compared to 50.8% for the three months ended June 30, 2017. The increase in the loss ratio for the second quarter of 2018 compared to the second quarter of 2017 was due to lower net favorable development of loss reserves for prior accident years and an increase in the loss ratio for the current accident year.

During the second quarter of 2018 and 2017, the favorable development of loss reserves for prior accident years was primarily due to reported losses emerging at lower levels than expected. During the second quarter of 2018, prior accident years developed favorably by $2.2 million, of which $3.1 million was attributable to accident years 2015 and 2016. This favorable development was offset in part by adverse development from accident years 2011 through 2014 of $0.9 million. During the second quarter of 2017, loss reserves for prior accident years developed favorably by $3.8 million, which was attributable to accident years 2014 to 2016 of $4.3 million. This favorable development was offset in part by adverse development in the 2012 and 2013 accident year of $0.5 million.

25

The following table summarizes the loss ratios for the three months ended June 30, 2018 and 2017:

	Three Months Ended June 30,
	2018					2017
($ in thousands)	Losses and Loss Adjustment Expenses			% of Earned Premiums		Losses and Loss Adjustment Expenses			% of Earned Premiums
Loss ratio:
Current accident year before catastrophe losses	$	32,050		63.0	%	$	25,651		59.6	%
Current year catastrophe losses	156			0.3	%	40			0.1	%
Effect of prior year development	(2,239		)	(4.4	)%	(3,832		)	(8.9	)%
Total	$	29,967		58.9	%	$	21,859		50.8	%

Expense ratio

The expense ratio for the three months ended June 30, 2018 was relatively flat compared to the three months ended June 30, 2017. The following table summarizes the components of the expense ratio for the three months ended June 30, 2018 and 2017:

	Three Months Ended June 30,
	2018					2017
($ in thousands)	Underwriting Expenses			% of Earned Premiums		Underwriting Expenses			% of Earned Premiums
Commissions incurred:
Direct	$	8,756		17.2	%	$	7,544		17.5	%
Ceding	(2,464		)	(4.8	)%	(2,466		)	(5.7	)%
Net commissions incurred	6,292			12.4	%	5,078			11.8	%
Other underwriting expenses	6,227			12.2	%	5,414			12.6	%
Underwriting, acquisition and insurance expenses	$	12,519		24.6	%	$	10,492		24.4	%

The decrease in the other underwriting expense ratio for the three months ended June 30, 2018 compared to the same period last year reflected the benefit of higher net earned premiums without a proportional increase in total other underwriting expenses from management's focus on controlling costs. Direct commissions paid as a percent of gross written premiums was 14.7% for the three months ended June 30, 2018 and 14.8% for the three months ended June 30, 2017.

Combined ratio

Our combined ratio was 83.5% for the three months ended June 30, 2018 compared to 75.2% for the three months ended June 30, 2017.

Other expenses, net

Other expenses of $0.4 million for the three months ended June 30, 2017 were comprised of expenses related to the secondary offering of our common stock in May 2017.

26

Investing results

Our net investment income increased by 55.5% to $3.8 million for the three months ended June 30, 2018 from $2.4 million for the three months ended June 30, 2017. This increase was primarily due to growth in our investment portfolio balance from excess operating funds generated since the second quarter of 2017 and higher gross investment returns in the second quarter of 2018 compared to the same period last year as a result of a more favorable interest rate environment and higher dividends.

The following table summarizes net investment income and net realized and unrealized investment gains for the three months ended June 30, 2018 and 2017:

	Three Months Ended June 30,
($ in thousands)	2018			2017			Change			% Change
Interest from fixed-maturity securities	$	3,322		$	2,326		$	996		42.8	%
Dividends from equity securities	512			185			327			176.8	%
Other	217			167			50			29.9	%
Gross investment income	4,051			2,678			1,373			51.3	%
Investment expenses	(269		)	(246		)	(23		)	9.3	%
Net investment income	3,782			2,432			1,350			55.5	%
Net unrealized gains on equity securities	94			—			94			NM
Net realized gains on investments	174			24			150			625.0	%
Net realized and unrealized investment gains	268			24			244			1,016.7	%
Total	$	4,050		$	2,456		$	1,594		64.9	%

NM - Percentage change not meaningful

Our investment portfolio, excluding cash equivalents and unrealized gains and losses, had an annualized gross investment return of 2.9% for the three months ended June 30, 2018, compared to 2.4% for the three months ended June 30, 2017. As discussed previously, effective January 1, 2018, we adopted a new accounting standard which required changes in the fair value of equity investments to be recognized in net income. During the second quarter of 2018, we recognized unrealized gains of $0.1 million related to our equity portfolio.

We perform quarterly reviews of all available-for-sale securities within our investment portfolio to determine whether any other-than-temporary impairment has occurred. Management concluded that there were no other-than-temporary impairments from available-for-sale investments for the three months ended June 30, 2018 or 2017.

Income tax expense

Our income tax expense was $2.3 million for the three months ended June 30, 2018 compared to $4.3 million for the three months ended June 30, 2017. Our effective tax rate was approximately 18.9% for the three months ended June 30, 2018 compared to 33.4% for the three months ended June 30, 2017. For the second quarter of 2018, our effective tax rate reflected the Tax Cuts and Jobs Act of 2017, which among other provisions, lowered the federal corporate tax rate from 35% to 21% starting January 1, 2018. The decrease in the effective tax rate for the three months ended June 30, 2018 compared to the prior-year period was also due to the recognition of tax benefits related to stock options exercised during the second quarter of 2018.

27

Six months ended June 30, 2018 compared to six months ended June 30, 2017

The following table summarizes our results of operations for the six months ended June 30, 2018 and 2017:

	Six Months Ended June 30,
($ in thousands)	2018			2017			Change			% Change
Gross written premiums	$	133,828		$	110,615		$	23,213		21.0	%
Ceded written premiums	(17,846		)	(16,680		)	(1,166		)	7.0	%
Net written premiums	$	115,982		$	93,935		$	22,047		23.5	%
Net earned premiums	$	98,954		$	83,485		$	15,469		18.5	%
Losses and loss adjustment expenses	58,866			43,966			14,900			33.9	%
Underwriting, acquisition and insurance expenses	24,917			21,786			3,131			14.4	%
Underwriting income (1)	15,171			17,733			(2,562		)	(14.4	)%
Other expenses, net	(7		)	(402		)	395			(98.3	)%
Net investment income	7,011			4,718			2,293			48.6	%
Net unrealized losses on equity securities	(1,185		)	—			(1,185		)	NM
Net realized gains (losses) on investments	286			(8		)	294			NM
Income before taxes	21,276			22,041			(765		)	(3.5	)%
Income tax expense	3,877			7,265			(3,388		)	(46.6	)%
Net income	$	17,399		$	14,776		$	2,623		17.8	%
Annualized return on equity	14.3		%	13.5		%
Loss ratio	59.5		%	52.7		%
Expense ratio	25.2		%	26.1		%
Combined ratio	84.7		%	78.8		%

NM - Percentage change not meaningful

⁽¹⁾ Underwriting income is a non-GAAP financial measure. See "—Reconciliation of non-GAAP financial measures" for a reconciliation of net income to underwriting income in accordance with GAAP.

Net income was $17.4 million for the six months ended June 30, 2018 compared to $14.8 million for the six months ended June 30, 2017, an increase of 17.8%. The increase in net income for the first half of 2018 over the first half of 2017 was due to a lower effective tax rate of 18.2%, resulting from the TCJA and the recognition of tax benefits related to stock options exercised during the first half of 2018, and higher net investment income. These factors were offset in part by unrealized losses of $1.2 million related to changes in the fair value of equity investments, which were required to be recognized in net income upon the adoption of a new accounting standard.

Underwriting income was $15.2 million for the six months ended June 30, 2018 compared to $17.7 million for the six months ended June 30, 2017, a decrease of 14.4%. The corresponding combined ratios were 84.7% for the six months ended June 30, 2018 compared to 78.8% for the six months ended June 30, 2017. The decrease in our underwriting income in the first half of 2018 compared to the first half of 2017, was due to lower net favorable development of loss reserves for prior accident years, offset in part by higher net earned premiums.

28

Premiums

Our gross written premiums were $133.8 million for the six months ended June 30, 2018 compared to $110.6 million for the six months ended June 30, 2017, an increase of $23.2 million, or 21.0%. The increase in gross written premiums for the first six months of 2018 over the same period last year was due to higher submission activity across most lines of business. The average premium on a policy written was approximately $7,500 in the first six months of 2018 compared to approximately $8,200 in the first six months of 2017. The decrease in the average premium per policy written was due to changes in the mix of business during the first half of 2018 compared to the same period last year.

Net written premiums increased by $22.0 million, or 23.5%, to $116.0 million for the six months ended June 30, 2018 from $93.9 million for the six months ended June 30, 2017. The increase in net written premiums for the first six months of 2018 compared to the same period last year was primarily due to higher gross written premiums while ceded premiums remained relatively flat. The net retention ratio was 86.7% for the six months ended June 30, 2018 compared to 84.9% for the six months ended June 30, 2017. The increase in the net retention ratio was due to an increase in our retention on the excess casualty reinsurance treaty effective with the renewal on June 1, 2017 and a change in the mix of business.

Net earned premiums increased by $15.5 million, or 18.5%, to $99.0 million for the six months ended June 30, 2018 from $83.5 million for the six months ended June 30, 2017 due to growth in gross written premiums.

Loss ratio

The loss ratio was 59.5% for the six months ended June 30, 2018 compared to 52.7% for the six months ended June 30, 2017. The increase in the loss ratio for the first six months of 2018 was due to lower net favorable development of loss reserves for prior accident years in the first half of 2018 compared to the first half of 2017.

During the first half of 2018 and 2017, the favorable development of loss reserves for prior accident years was primarily due to reported losses emerging at lower levels than expected. During the six months ended June 30, 2018, prior accident years developed favorably by $3.5 million, of which $6.3 million was attributable to accident years 2015 through 2017. This favorable development was offset in part by adverse development from accident years 2011 through 2014 of $2.8 million. During the six months ended June 30, 2017, loss reserves for prior accident years developed favorably by $8.9 million, which was largely attributable to accident years 2015 and 2016 of $9.5 million. This favorable development was offset in part by adverse development in the 2013 accident year of $1.1 million.

The following table summarizes the loss ratios for the six months ended June 30, 2018 and 2017:

	Six Months Ended June 30,
	2018					2017
($ in thousands)	Losses and Loss Adjustment Expenses			% of Earned Premiums		Losses and Loss Adjustment Expenses			% of Earned Premiums
Loss ratio:
Current accident year before catastrophe losses	$	62,233		62.9	%	$	52,788		63.3	%
Current year catastrophe losses	156			0.2	%	114			0.1	%
Effect of prior year development	(3,523		)	(3.6	)%	(8,936		)	(10.7	)%
Total	$	58,866		59.5	%	$	43,966		52.7	%

29

Expense ratio

The following table summarizes the components of the expense ratio for the six months ended June 30, 2018 and 2017:

	Six Months Ended June 30,
	2018					2017
($ in thousands)	Underwriting Expenses			% of Earned Premiums		Underwriting Expenses			% of Earned Premiums
Commissions incurred:
Direct	$	17,135		17.3	%	$	14,693		17.6	%
Ceding	(4,908		)	(4.9	)%	(4,812		)	(5.8	)%
Net commissions incurred	12,227			12.4	%	9,881			11.8	%
Other underwriting expenses	12,690			12.8	%	11,905			14.3	%
Underwriting, acquisition and insurance expenses	$	24,917		25.2	%	$	21,786		26.1	%

The expense ratio was 25.2% for the six months ended June 30, 2018 compared to 26.1% for the six months ended June 30, 2017. The decrease in the other underwriting expense ratio for the six months ended June 30, 2018 compared to the expense ratio for the same period last year reflected the benefit of higher net earned premiums without a proportional increase in total other underwriting expenses from management's focus on controlling costs. Direct commissions paid as a percent of gross written premiums was 14.7% for the six months ended June 30, 2018 and 14.8% for the six months ended June 30, 2017.

Combined ratio

Our combined ratio was 84.7% for the six months ended June 30, 2018 compared to 78.8% for the six months ended June 30, 2017.

Other expenses, net

Other expenses of $0.4 million for the six months ended June 30, 2017 were comprised of expenses related to the secondary offering of our common stock in May 2017.

Investing results

Our net investment income increased by 48.6% to $7.0 million for the six months ended June 30, 2018 from $4.7 million for the six months ended June 30, 2017. This increase was primarily due to growth in our investment portfolio balance generated from excess operating funds and higher gross investment returns in the first half of 2018 compared to the same period last year as a result of a more favorable interest rate environment and higher dividends.

30

The following table summarizes net investment income and net realized and unrealized investment gains and losses for the six months ended June 30, 2018 and 2017:

	Six Months Ended June 30,
($ in thousands)	2018			2017			Change			% Change
Interest from fixed-maturity securities	$	6,168		$	4,657		$	1,511		32.4	%
Dividends from equity securities	924			295			629			213.2	%
Other	477			254			223			87.8	%
Gross investment income	7,569			5,206			2,363			45.4	%
Investment expenses	(558		)	(488		)	(70		)	14.3	%
Net investment income	7,011			4,718			2,293			48.6	%
Net unrealized losses on equity securities	(1,185		)	—			(1,185		)	NM
Net realized gains (losses) on investments	286			(8		)	294			NM
Net realized and unrealized investment losses	(899		)	(8		)	(891		)	NM
Total	$	6,112		$	4,710		$	1,402		29.8	%

NM - Percentage change not meaningful

Our investment portfolio, excluding cash equivalents and unrealized gains and losses, had an annualized gross investment return of 2.9% for the six months ended June 30, 2018, compared to 2.3% for the six months ended June 30, 2017. As discussed previously, effective January 1, 2018, we adopted a new accounting standard which required changes in the fair value of equity investments to be recognized in net income. During the first half of 2018, we recognized unrealized losses of $1.2 million related to our equity portfolio.

We perform quarterly reviews of all available-for-sale securities within our investment portfolio to determine whether any other-than-temporary impairment has occurred. Management concluded that there were no other-than-temporary impairments from available-for-sale investments for the six months ended June 30, 2018 or 2017.

Income tax expense

Our income tax expense was $3.9 million for the six months ended June 30, 2018 compared to $7.3 million for the six months ended June 30, 2017. Our effective tax rate was approximately 18.2% for the six months ended June 30, 2018 compared to 33.0% for the six months ended June 30, 2017. For the first six months of 2018, our effective tax rate reflected the Tax Cuts and Jobs Act of 2017, which among other provisions, lowered the federal corporate tax rate from 35% to 21% starting January 1, 2018. The decrease in the effective tax rate for the six months ended June 30, 2018 compared to the prior-year period was also due to the recognition of tax benefits related to stock options exercised during the first half of 2018.

Return on equity

Our annualized return on equity was 14.3% for the six months ended June 30, 2018 compared to 13.5% for the six months ended June 30, 2017. The increase in annualized return on equity for the six months ended June 30, 2018 was largely due to the lower income tax rate as a result of the Tax Cuts and Jobs Act of 2017 and higher overall returns on our investment portfolio.

31

Liquidity and capital resources

Sources and uses of funds

We are organized as a Delaware holding company with our operations primarily conducted by our wholly-owned insurance subsidiary, Kinsale Insurance Company, which is domiciled in Arkansas. Accordingly, we may receive cash through (1) loans from banks and other third parties, (2) issuance of equity and debt securities, (3) corporate service fees from our insurance subsidiary, (4) payments from our subsidiaries pursuant to our consolidated tax allocation agreement and other transactions, and (5) dividends from our insurance subsidiary. We may use the proceeds from these sources to contribute funds to Kinsale Insurance Company in order to support premium growth, reduce our reliance on reinsurance, pay dividends and taxes and for other business purposes.

We receive corporate service fees from Kinsale Insurance Company to reimburse us for most of the operating expenses that we incur. Reimbursement of expenses through corporate service fees is based on the actual costs that we expect to incur with no mark-up above our expected costs.

Management believes that the Company has sufficient liquidity available both in Kinsale and in its insurance subsidiary, Kinsale Insurance Company, as well as in its other operating subsidiaries, to meet its operating cash needs and obligations and committed capital expenditures for the next 12 months.

Cash flows

Our most significant source of cash is from premiums received from our insureds, which, for most policies, we receive at the beginning of the coverage period. Our most significant cash outflow is for claims that arise when a policyholder incurs an insured loss. Because the payment of claims occurs after the receipt of the premium, often years later, we invest the cash in various investment securities that earn interest and dividends. We also use cash to pay commissions to brokers, as well as to pay for ongoing operating expenses such as salaries, rent and taxes. As described under "—Reinsurance" below, we use reinsurance to manage the risk that we take on our policies. We cede, or pay out, part of the premiums we receive to our reinsurers and collect cash back when losses subject to our reinsurance coverage are paid.

The timing of our cash flows from operating activities can vary among periods due to the timing by which payments are made or received. Some of our payments and receipts, including loss settlements and subsequent reinsurance receipts, can be significant, so their timing can influence cash flows from operating activities in any given period. Management believes that cash receipts from premiums, proceeds from investment sales and redemptions and investment income are sufficient to cover cash outflows in the foreseeable future.

Our cash flows for the six months ended June 30, 2018 and 2017 were:

	Six Months Ended June 30,
	2018			2017
	(in thousands)
Cash and cash equivalents provided by (used in):
Operating activities	$	50,423		$	40,782
Investing activities	(50,176		)	4,421
Financing activities	(2,324		)	(2,525		)
Change in cash and cash equivalents	$	(2,077	)	$	42,678

Net cash provided by operating activities was approximately $50.4 million for the sixmonths ended June 30, 2018, compared to $40.8 million for the same period in 2017. This increase was largely driven by premium volume, the timing of claim payments, reinsurance recoveries, and changes in operating assets and liabilities.

Net cash used in investing activities was $50.2 million for the six months ended June 30, 2018, compared to net cash provided by investing activities of $4.4 million for the six months ended June 30, 2017. Net cash used in investing activities during the first six months of 2018 reflected purchases of fixed-maturity securities of $110.0 million, comprised largely of corporate bonds and asset-backed securities, and purchases of equity securities of $7.2 million, principally

32

exchange traded funds ("ETFs"). During the first half of 2018, we received proceeds of $65.6 million from maturities and sales of fixed-maturity securities and $1.9 million from the sale of an intermediate-term bond ETF and preferred stocks. Cash provided by investing activities during the first half of 2017 reflected proceeds received from sales and maturing fixed income securities of $46.4 million, offset in part by selective purchases of fixed income securities, principally municipal bonds and asset backed securities of $21.2 million. In addition, we purchased $14.5 million of short-term investments and $6.3 million of equity securities during the first six months of 2017.

During the first six months of 2018, cash used in financing activities primarily reflected dividends paid of $0.14 per common share, or $2.9 million in aggregate. During the first six months of 2017, cash used in financing activities primarily reflected dividends paid of $0.12 per common share, or $2.5 million in aggregate.

Reinsurance

We enter into reinsurance contracts primarily to limit our exposure to potential large losses. Reinsurance involves an insurance company transferring ("ceding") a portion of its exposure on a risk to another insurer, the reinsurer. The reinsurer assumes the exposure in return for a portion of the premium. Our reinsurance is primarily contracted under quota-share reinsurance contracts and excess of loss contracts. In quota share reinsurance, the reinsurer agrees to assume a specified percentage of the ceding company's losses arising out of a defined class of business in exchange for a corresponding percentage of premiums, net of a ceding commission. In excess of loss reinsurance, the reinsurer agrees to assume all or a portion of the ceding company's losses, in excess of a specified amount. Under excess of loss reinsurance, the premium payable to the reinsurer is negotiated by the parties based on their assessment of the amount of risk being ceded to the reinsurer because the reinsurer does not share proportionately in the ceding company's losses.

We use facultative reinsurance coverage on a limited basis. Facultative coverage refers to a reinsurance contract on individual risks as opposed to a group or class of business. It is used for a variety of reasons, including supplementing the limits provided by the treaty coverage or covering risks or perils excluded from treaty reinsurance.

The following is a summary of our significant reinsurance programs as of June 30, 2018:

Line of Business Covered	Company Policy Limit	Reinsurance Coverage	Company Retention
Property - per risk	Up to $10.0 million per risk	$9.0 million excess of $1.0 million	$1.0 million per occurrence
Property - catastrophe (1)	N/A	$45.0 million excess of $5.0 million	$5.0 million per catastrophe
Primary casualty (2)	Up to $10.0 million per occurrence	$9.0 million excess of $1.0 million	$1.0 million per occurrence
Excess casualty (3)	Up to $10.0 million per occurrence	Variable quota share	$1.5 million per occurrence except as described in note (3) below

(1) Our property catastrophe reinsurance reduces the financial impact of a catastrophe event involving multiple claims and policyholders. Our property catastrophe reinsurance includes a reinstatement provision which requires us to pay reinstatement premiums after a loss has occurred in order to preserve coverage. Including the reinstatement provision, the maximum aggregate loss recovery limit is $90 million and is in addition to the per-occurrence coverage provided by our facultative and other treaty coverages. 

(2) Reinsurance is not applicable to any individual policy with a per occurrence limit of $1.0 million or less.

(3) For policies with a per occurrence limit higher than $1.0 million, the quota share ceding percentage varies such that the retention is always $1.5 million or less. For example, for a $2.0 million limit excess policy, our retention would be 75%, whereas for a $10.0 million limit excess policy, our retention would be 15%. For policies for which we also write an underlying primary limit, the retention on the primary and excess policy combined would not exceed $1.5 million.

33

At each renewal, we consider any plans to change the underlying insurance coverage we offer, as well as updated loss activity, the level of our capital and surplus, changes in our risk appetite and the cost and availability of reinsurance treaties.

Reinsurance contracts do not relieve us from our obligations to policyholders. Failure of the reinsurer to honor its obligations could result in losses to us, and therefore, we establish allowances for amounts considered uncollectible. In formulating our reinsurance programs, we are selective in our choice of reinsurers and we consider numerous factors, the most important of which are the financial stability of the reinsurer, its history of responding to claims and its overall reputation. In an effort to minimize our exposure to the insolvency of our reinsurers, we review the financial condition of each reinsurer annually. In addition, we continually monitor for rating downgrades involving any of our reinsurers. At June 30, 2018, all reinsurance contracts that our insurance subsidiary was a party to were with companies with A.M. Best ratings of "A" (Excellent) or better. As of June 30, 2018, we have never had a loss for uncollectible reinsurance.

Ratings

Kinsale Insurance Company has a financial strength rating of "A-" (Excellent) with a positive outlook from A.M. Best. A.M. Best assigns 16 ratings to insurance companies, which currently range from "A++" (Superior) to "F" (In Liquidation). "A-" (Excellent) is the fourth highest rating issued by A.M. Best. The "A-" (Excellent) rating is assigned to insurers that have, in A.M. Best's opinion, an excellent ability to meet their ongoing obligations to policyholders. This rating is intended to provide an independent opinion of an insurer's ability to meet its obligation to policyholders and is not an evaluation directed at investors.

The financial strength ratings assigned by A.M. Best have an impact on the ability of the insurance companies to attract and retain agents and brokers and on the risk profiles of the submissions for insurance that the insurance companies receive. The "A-" (Excellent) rating obtained by Kinsale Insurance Company is consistent with our business plan and allows us to actively pursue relationships with the agents and brokers identified in our marketing plan.

Financial condition

Stockholders' equity

At June 30, 2018, total stockholders' equity was $247.9 million and tangible stockholders' equity was $245.2 million, compared to total stockholders' equity of $238.2 million and tangible stockholders' equity $235.4 million at December 31, 2017. The increases in both total and tangible stockholders' equity over the prior year-end balances were primarily due to profits generated during the period offset in part by an increase in unrealized losses on investments, net of taxes, and payment of dividends.

Tangible stockholders’ equity is a non-GAAP financial measure. We define tangible stockholders’ equity as stockholders’ equity less intangible assets, net of deferred taxes. Our definition of tangible stockholders’ equity may not be comparable to that of other companies, and it should not be viewed as a substitute for stockholders’ equity calculated in accordance with GAAP. We use tangible stockholders' equity internally to evaluate the strength of our balance sheet and to compare returns relative to this measure.

Stockholders' equity at June 30, 2018 and December 31, 2017, reconciles to tangible stockholders' equity as follows:

	June 30, 2018		December 31, 2017
	(in thousands)
Stockholders' equity	$	247,945	$	238,189
Less: intangible assets, net of deferred taxes	2,795		2,795
Tangible stockholders' equity	$	245,150	$	235,394

Investment portfolio

AtJune 30, 2018, our cash and invested assetsof $605.8 millionconsisted of fixed-maturity securities, cash and cash equivalents and equity securities. At June 30, 2018, the majority of the investment portfolio was comprised of fixed-maturity securities of $467.9 million that were classified as available-for-sale. Available-for-sale investments are carried

34

at fair value with unrealized gains and losses on these securities, net of applicable taxes, reported as a separate component of accumulated other comprehensive income. At June 30, 2018, we also held $79.7 million of cash and cash equivalents and $58.2 million of equity securities, which are comprised of ETFs and nonredeemable preferred stock. Effective January 1, 2018, we adopted a new accounting standard ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities," which eliminated the available-for-sale classification for equity securities and required changes in unrealized gains and losses in fair value of these investments to be recognized in net income. Our fixed-maturity securities, including cash equivalents, had a weighted average duration of 4.0 years at June 30, 2018 compared to 3.9 years at December 31, 2017 and an average rating of "AA" at June 30, 2018 and December 31, 2017.

At June 30, 2018 and December 31, 2017, the amortized cost and fair value on fixed-maturity securities were as follows:

	June 30, 2018						December 31, 2017
	Amortized Cost		Estimated Fair Value		% of Total Fair Value		Amortized Cost		Estimated Fair Value		% of Total Fair Value
	($ in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	608	$	607	0.1	%	$	9,108	$	9,098	2.1	%
Obligations of states, municipalities and political subdivisions	155,799		155,601		33.3	%	161,012		164,326		38.7	%
Corporate and other securities	85,672		85,008		18.2	%	71,224		71,631		16.9	%
Asset-backed securities	125,030		124,048		26.5	%	95,223		95,360		22.4	%
Residential mortgage-backed securities	105,309		102,658		21.9	%	85,688		84,776		19.9	%
Total fixed maturities	$	472,418	$	467,922	100.0	%	$	422,255	$	425,191	100.0	%

The table below summarizes the credit quality of our fixed-maturity securities at June 30, 2018 and December 31, 2017, as rated by Standard & Poor’s Financial Services, LLC ("Standard & Poor's"):

	June 30, 2018				December 31, 2017
Standard & Poor’s or Equivalent Designation	Estimated Fair Value		% of Total		Estimated Fair Value		% of Total
	($ in thousands)
AAA	$	113,012	24.1	%	$	85,199	20.0	%
AA	192,242		41.1	%	190,044		44.7	%
A	113,627		24.3	%	112,129		26.4	%
BBB	40,668		8.7	%	28,715		6.8	%
Below BBB and unrated	8,373		1.8	%	9,104		2.1	%
Total	$	467,922	100.0	%	$	425,191	100.0	%

35

The amortized cost and fair value of our available-for-sale investments in fixed-maturity securities summarized by contractual maturity as of June 30, 2018 and December 31, 2017, were as follows:

	June 30, 2018						December 31, 2017
	Amortized Cost		Estimated Fair Value		% of Total Fair Value		Amortized Cost		Estimated Fair Value		% of Total Fair Value
	($ in thousands)
Due in one year or less	$	24,944	$	24,857	5.3	%	$	50,020	$	49,973	11.8	%
Due after one year through five years	49,867		49,735		10.6	%	28,979		29,299		6.9	%
Due after five years through ten years	39,180		39,529		8.5	%	28,733		29,800		7.0	%
Due after ten years	128,088		127,095		27.2	%	133,612		135,983		32.0	%
Asset-backed securities	125,030		124,048		26.5	%	95,223		95,360		22.4	%
Residential mortgage-backed securities	105,309		102,658		21.9	%	85,688		84,776		19.9	%
Total fixed maturities	$	472,418	$	467,922	100.0	%	$	422,255	$	425,191	100.0	%

Actual maturities may differ from contractual maturities because some borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

As of June 30, 2018, approximately 6.5% of our total cash and investments were invested in ETFs, which provide low-cost diversification. At June 30, 2018 and December 31, 2017, our ETF balance was comprised of the following funds:

	June 30, 2018				December 31, 2017
Fund	Fair Value		% of Total		Fair Value		% of Total
	($ in thousands)
Domestic stock market fund	$	21,669	54.9	%	$	16,088	46.8	%
Foreign stock market fund	9,879		25.1	%	9,297		27.0	%
Dividend yield equity fund	7,886		20.0	%	8,010		23.3	%
Intermediate-term corporate bond fund	—		—	%	985		2.9	%
Total	$	39,434	100.0	%	$	34,380	100.0	%

As of June 30, 2018, approximately3.1%of our total cash and investments were invested in nonredeemable preferred stock. A summary of these securities by industry segment is shown below as of June 30, 2018 and December 31, 2017:

	June 30, 2018				December 31, 2017
Industry	Fair Value		% of Total		Fair Value		% of Total
	($ in thousands)
Financial	$	14,292	76.1	%	$	15,859	80.3	%
Utilities	2,808		14.9	%	2,120		10.7	%
Industrials and other	1,685		9.0	%	1,773		9.0	%
Total	$	18,785	100.0	%	$	19,752	100.0	%

Restricted investments

In order to conduct business in certain states, we are required to maintain letters of credit or assets on deposit to support state-mandated insurance regulatory requirements and to comply with certain third-party agreements. Assets held on deposit or in trust accounts are primarily in the form of high-grade securities. The fair value of our restricted assets was$6.9 million at June 30, 2018 and $7.1 million at December 31, 2017.

Off-balance sheet arrangements

We do not have any material off-balance sheet arrangements at June 30, 2018.

36

Reconciliation of non-GAAP financial measures

Reconciliation of underwriting income

Underwriting income is a non-GAAP financial measure that we believe is useful in evaluating our underwriting performance without regard to investment income. Underwriting income represents the pre-tax profitability of our insurance operations and is derived by subtracting losses and loss adjustment expenses and underwriting, acquisition and insurance expenses from net earned premiums. We use underwriting income as an internal performance measure in the management of our operations because we believe it gives us and users of our financial information useful insight into our results of operations and our underlying business performance. Underwriting income should not be viewed as a substitute for net income calculated in accordance with GAAP, and other companies may define underwriting income differently.

Net income for the three and six months ended June 30, 2018 and 2017, reconciles to underwriting income as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2018			2017			2018			2017
Net income	$	10,112		$	8,495		$	17,399		$	14,776
Income tax expense	2,349			4,260			3,877			7,265
Income before income taxes	12,461			12,755			21,276			22,041
Other expenses	—			402			14			402
Net investment income	(3,782		)	(2,432		)	(7,011		)	(4,718		)
Net unrealized (gains) losses on equity securities	(94		)	—			1,185			—
Net realized (gains) losses on investments	(174		)	(24		)	(286		)	8
Other income	(4		)	—			(7		)	—
Underwriting income	$	8,407		$	10,701		$	15,171		$	17,733

Critical accounting estimates

We identified the accounting estimates which are critical to the understanding of our financial position and results of operations. Critical accounting estimates are defined as those estimates that are both important to the portrayal of our financial condition and results of operations and require us to exercise significant judgment. We use significant judgment concerning future results and developments in applying these critical accounting estimates and in preparing our consolidated financial statements. These judgments and estimates affect our reported amounts of assets, liabilities, revenues and expenses and the disclosure of our material contingent assets and liabilities. Actual results may differ materially from the estimates and assumptions used in preparing the consolidated financial statements. We evaluate our estimates regularly using information that we believe to be relevant. Our critical accounting policies and estimates are described in our annual consolidated financial statements and the related notes in our Annual Report on Form 10-K for the year ended December 31, 2017.

37

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Market risk is the risk of economic losses due to adverse changes in the estimated fair value of a financial instrument as the result of changes in interest rates, equity prices, foreign currency exchange rates and commodity prices.Our primary market risks have been equity price risk associated with investments in equity securities and interest rate risk associated with investments in fixed maturities. We do not have any material exposure to foreign currency exchange rate risk or commodity risk.

There have been no material changes in market risk from the information provided in our Annual Report on Form 10-K for the year ended December 31, 2017.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in the reports we file under the Securities Exchange Act of 1934 (the "Exchange Act") is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer ("CEO") and Chief Financial Officer ("CFO"), as appropriate, to allow timely decisions regarding required financial disclosure.

As of the end of the period covered by this Quarterly Report on Form 10-Q, we carried out an evaluation, under the supervision and with the participation of our management, including our CEO and CFO, of the effectiveness of the design and operation of our disclosure controls and procedures defined under Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based upon this evaluation, our CEO and CFO concluded that our disclosure controls and procedures were effective.

Changes in Internal Controls over Financial Reporting

No changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the quarter ended June 30, 2018 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Controls

The effectiveness of any system of controls and procedures is subject to certain limitations, and, as a result, there can be no assurance that our controls and procedures will detect all errors or fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system will be attained.

38

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

We are party to legal proceedings which arise in the ordinary course of business. We believe that the outcome of such matters, individually and in the aggregate, will not have a material adverse effect on our consolidated financial position.

Item 1A. Risk Factors

There have been no material changes in our risk factors from those disclosed in our Annual Report on Form 10-K for the year ended December 31, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 6. Exhibits

Exhibit Number	Description
31.1	Certification of principal executive officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of principal financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

* This certification is deemed not filed for purposes of section 18 of the Exchange Act, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act.

39

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		KINSALE CAPITAL GROUP, INC.
Date: August 6, 2018	By:	/s/ Michael P. Kehoe
		Michael P. Kehoe President and Chief Executive Officer
Date: August 6, 2018	By:	/s/ Bryan P. Petrucelli
		Bryan P. Petrucelli Senior Vice President, Chief Financial Officer and Treasurer

40

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Michael P. Kehoe, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kinsale Capital Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f), for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

August 6, 2018	/s/ Michael P. Kehoe
	Michael P. Kehoe
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Bryan P. Petrucelli, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Kinsale Capital Group, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f), for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

August 6, 2018	/s/ Bryan P. Petrucelli
	Bryan P. Petrucelli
	Senior Vice President, Chief Financial Officer and Treasurer
	(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report on Form 10-Q of Kinsale Capital Group, Inc. (the "Company") for the period ended June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Michael P. Kehoe, President and Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

August 6, 2018	/s/ Michael P. Kehoe
	Michael P. Kehoe
	President and Chief Executive Officer
	(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report on Form 10-Q of Kinsale Capital Group, Inc. (the "Company") for the period ended June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Bryan P. Petrucelli, Senior Vice President, Chief Financial Officer and Treasurer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

August 6, 2018	/s/ Bryan P. Petrucelli
	Bryan P. Petrucelli
	Senior Vice President, Chief Financial Officer and Treasurer
	(Principal Financial Officer)

XML

Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Kinsale Capital Group, Inc.
Entity Central Index Key	0001669162
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		21,181,127

XML

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Fixed-maturity securities available for sale, at fair value (amortized cost: $472,418 in 2018; $422,255 in 2017)	$ 467,922	$ 425,191
Equity securities at fair value (cost: $51,190 in 2018)	58,219
Equity securities available or sale, at fair value (cost: $45,916 in 2017)		54,132
Total investments	526,141	479,323
Cash and cash equivalents	79,670	81,747
Investment income due and accrued	3,343	3,077
Premiums receivable, net	24,023	19,787
Reinsurance recoverables	54,436	49,593
Ceded unearned premiums	14,463	13,858
Deferred policy acquisition costs, net of ceding commissions	14,123	11,775
Intangible assets	3,538	3,538
Deferred income tax asset, net	5,073	2,492
Other assets	4,093	2,659
Total assets	728,903	667,849
Liabilities
Reserves for unpaid losses and loss adjustment expenses	344,565	315,717
Unearned premiums	120,742	103,110
Payable to reinsurers	3,711	3,226
Accounts payable and accrued expenses	4,230	6,519
Other liabilities	7,710	1,088
Total liabilities	480,958	429,660
Stockholders' Equity
Common stock, $0.01 par value, 400,000,000 shares authorized, 21,169,384 and 21,036,087 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	211	210
Additional paid-in capital	156,264	155,082
Retained earnings	93,129	73,502
Accumulated other comprehensive (loss) income	(1,659)	9,395
Total stockholders’ equity	247,945	238,189
Total liabilities and stockholders’ equity	$ 728,903	$ 667,849

XML

Consolidated Balance Sheet (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets [Abstract]
Fixed maturity securities available-for-sale, amortized cost	$ 472,418	$ 422,255
Equity securities - cost	$ 51,190
Equity securities available for sale, cost		$ 45,916
Stockholders' Equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	21,169,384	21,036,087
Common stock, shares outstanding (in shares)	21,169,384	21,036,087

XML

Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Gross written premiums	$ 69,981	$ 57,753	$ 133,828	$ 110,615
Ceded written premiums	(9,090)	(7,980)	(17,846)	(16,680)
Net written premiums	60,891	49,773	115,982	93,935
Change in unearned premiums	(9,998)	(6,721)	(17,028)	(10,450)
Net earned premiums	50,893	43,052	98,954	83,485
Net investment income	3,782	2,432	7,011	4,718
Net unrealized gains (losses) on equity securities	94	0	(1,185)	0
Realized gains (losses) on investments	174	24	286	(8)
Other income	4	0	7	0
Total revenues	54,947	45,508	105,073	88,195
Expenses:
Losses and loss adjustment expenses	29,967	21,859	58,866	43,966
Underwriting, acquisition and insurance expenses	12,519	10,492	24,917	21,786
Other expenses	0	402	14	402
Total expenses	42,486	32,753	83,797	66,154
Income before income taxes	12,461	12,755	21,276	22,041
Total income tax expense	2,349	4,260	3,877	7,265
Net income	10,112	8,495	17,399	14,776
Other comprehensive income (loss):
Change in unrealized (losses) gains on available-for-sale investments, net of taxes of ($270) and ($1,561) in 2018 and $1,171 and $1,748 in 2017	(1,016)	2,174	(5,872)	3,247
Total comprehensive income	$ 9,096	$ 10,669	$ 11,527	$ 18,023
Earnings per share:
Basic	$ 0.48	$ 0.41	$ 0.83	$ 0.70
Diluted	$ 0.47	$ 0.40	$ 0.80	$ 0.69
Weighted average shares outstanding
Basic	21,070	20,969	21,058	20,969
Diluted	21,666	21,457	21,648	21,425
Cash dividends declared per share	$ 0.07	$ 0.06	$ 0.14	$ 0.12

XML

Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Income taxes on change in unrealized gains (losses) on available-for-sale investments	$ (270)	$ 1,171	$ (1,561)	$ 1,748

XML

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Balance, shares at Dec. 31, 2016	20,969,000
Balance, shares at Jun. 30, 2017	20,969,000
Balance at Dec. 31, 2016	$ 210,214	$ 210	$ 153,353	$ 53,640	$ 3,011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	324		324
Dividends declared	(2,516)			(2,516)
Other comprehensive income (loss), net of tax	3,247				3,247
Net income	14,776			14,776
Balance at Jun. 30, 2017	226,045	210	153,677	65,900	6,258
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment - net unrealized gains on equity securities | Accounting Standards Update 2016-01 [Member]	$ 0			6,490	(6,490)
Balance, shares at Dec. 31, 2017	21,036,087
Balance, shares (Accounting Standards Update 2016-01 [Member]) at Dec. 31, 2017	21,036,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation (shares)	133,000
Balance, shares at Jun. 30, 2018	21,169,384
Balance at Dec. 31, 2017	$ 238,189	210	155,082	73,502	9,395
Balance (Accounting Standards Update 2016-01 [Member]) at Dec. 31, 2017	238,189	210	155,082	79,992	2,905
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of tax effects resulting from the TCJA	0			(1,308)	1,308
Issuance of stock under stock-based compensation plan	624	1	623
Stock-based compensation	559		559
Dividends declared	(2,954)			(2,954)
Other comprehensive income (loss), net of tax	(5,872)				(5,872)
Net income	17,399			17,399
Balance at Jun. 30, 2018	247,945	$ 211	$ 156,264	$ 93,129	$ (1,659)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment - net unrealized gains on equity securities | Accounting Standards Update 2016-01 [Member]	$ 6,500

XML

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net cash provided by operating activities	$ 50,423	$ 40,782
Investing Activities
Purchase of property and equipment	(458)	(62)
Change in short-term investments, net	0	(14,481)
Purchases – fixed-maturity securities	(110,023)	(21,161)
Purchases - equity securities	(7,199)
Purchases – available-for-sale equity securities		(6,301)
Sales – fixed-maturity securities	3,913	719
Sales - equity securities	1,910
Sales - available-for-sale equity securities		0
Maturities and calls – fixed-maturity securities	61,681	45,707
Net cash (used in) provided by investing activities	(50,176)	4,421
Financing Activities
Proceeds from stock options exercised	624	0
Dividends paid	(2,948)	(2,516)
Payments on capital lease	0	(9)
Net cash used in financing activities	(2,324)	(2,525)
Net change in cash and cash equivalents	(2,077)	42,678
Cash and cash equivalents at beginning of year	81,747	50,752
Cash and cash equivalents at end of period	$ 79,670	$ 93,430

XML

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of significant accounting policies

Basis of presentation

The accompanying condensed consolidated financial statements and notes have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and do not contain all of the information and footnotes required by U.S. GAAP for complete financial statements. For a more complete description of the Company’s business and accounting policies, these condensed consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements of Kinsale Capital Group, Inc. and its wholly owned subsidiaries (the "Company") included in the Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of management, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included. Such adjustments consist only of normal recurring items. All significant intercompany balances and transactions have been eliminated in consolidation. Interim results are not necessarily indicative of results of operations for the full year.

Use of estimates

The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions.

Recently adopted accounting pronouncements

ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"), which eliminated the available-for-sale classification for equity investments, required changes in unrealized gains and losses in fair value of equity investments to be recognized in net income, required public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, required separate presentation of financial assets and financial liabilities by measurement category and form of financial asset, and eliminated the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that was required to be disclosed for financial instruments measured at amortized cost. Effective January 1, 2018, the Company adopted this ASU and recorded a cumulative-effect adjustment, which reclassified unrealized gains of $6.5 million, net of taxes, on equity investments from accumulated other comprehensive income ("AOCI") to retained earnings. Prior periods have not been restated to conform to the current presentation. 

ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

In February 2018, the FASB issued ASU 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which permitted companies to reclassify the disproportionate income tax effects of the Tax Cuts and Jobs Act of 2017 (the "TCJA") on items within AOCI to retained earnings. The FASB refers to these amounts as "stranded tax effects." The guidance is effective for all companies for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. Effective January 1, 2018, the Company elected to early adopt this ASU and to reclassify the stranded income tax effects for available-for-sale securities of $1.3 million from AOCI to retained earnings. Other than those effects related to the TCJA, the Company uses the portfolio approach to release stranded tax effects in AOCI related to its available-for-sale fixed-maturity securities and its available-for-sale equity securities (prior to the adoption of ASU 2016-01). Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities and available-for-sale equity securities are liquidated, sold or extinguished.

Prospective accounting pronouncements

ASU 2016-02, Leases (Topic 842)

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" to improve the financial reporting of leasing transactions. Under this ASU, lessees will recognize a right-of-use asset and corresponding liability on the balance sheet for all leases, except for leases covering a period of fewer than 12 months. The liability is to be initially measured at the present value of the future minimum lease payments taking into account renewal options if applicable plus initial incremental direct costs such as commissions. The minimum payments are discounted using the rate implicit in the lease or, if not known, the lessee’s incremental borrowing rate at the inception of the lease. The lessee’s income statement treatment for leases will vary depending on the nature of what is being leased. A financing type lease is present when, among other matters, the asset is being leased for a substantial portion of its economic life or has an end-of-term title transfer or a bargain purchase option as in today’s practice. The payment of the liability set up for such leases will be apportioned between interest and principal; the right-of use asset will be generally amortized on a straight-line basis. If the lease does not qualify as a financing type lease, it will be accounted for on the income statement as rent on a straight-line basis. This ASU is effective for annual and interim reporting periods beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2016-13, Financial Instruments – Credit Losses (Topic 326)

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments – Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. Current GAAP delays the recognition of credit losses until it is probable a loss has been incurred. The update will require a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale debt securities will also be recorded through an allowance for credit losses. However, the amendments would limit the amount of the allowance to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under current GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. This ASU is effective for annual and interim reporting periods beginning after December 15, 2019. Early adoption is permitted beginning after December 15, 2018. Upon adoption, the update will be applied using the modified-retrospective approach, by which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period presented. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2017-08, Premium Amortization on Purchased Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, "Premium Amortization on Purchased Callable Debt Securities," which shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. This ASU is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted, including in an interim period. Upon adoption, the update will be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period presented. The Company does not expect the adoption of ASU 2017-08 to have a material impact on its financial statements.

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

XML

Investments

6 Months Ended

Jun. 30, 2018

Investments [Abstract]

Investments

Investments

Available-for-sale investments

The following tables summarize the available-for-sale investments at June 30, 2018 and December 31, 2017:

	June 30, 2018
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	608	$	2	$	(3	)	$	607
Obligations of states, municipalities and political subdivisions	155,799		1,672		(1,870		)	155,601
Corporate and other securities	85,672		221		(885		)	85,008
Asset-backed securities	125,030		119		(1,101		)	124,048
Residential mortgage-backed securities	105,309		384		(3,035		)	102,658
Total available-for-sale investments	$	472,418	$	2,398	$	(6,894	)	$	467,922

	December 31, 2017
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,108	$	4	$	(14	)	$	9,098
Obligations of states, municipalities and political subdivisions	161,012		3,726		(412		)	164,326
Corporate and other securities	71,224		579		(172		)	71,631
Asset-backed securities	95,223		405		(268		)	95,360
Residential mortgage-backed securities	85,688		466		(1,378		)	84,776
Total fixed-maturity securities	422,255		5,180		(2,244		)	425,191
Equity securities:
Exchange traded funds	26,041		8,339		—			34,380
Nonredeemable preferred stock	19,875		108		(231		)	19,752
Total equity securities	45,916		8,447		(231		)	54,132
Total available-for-sale investments	$	468,171	$	13,627	$	(2,475	)	$	479,323

Available-for-sale securities in a loss position

The Company regularly reviews all available-for-sale securities with unrealized losses to assess whether the decline in the securities’ fair value is deemed to be an other-than-temporary impairment ("OTTI"). The Company considers a number of factors in completing its OTTI review, including the length of time and the extent to which fair value has been below cost and the financial condition of an issuer. In addition to specific issuer information, the Company also evaluates the current market and interest rate environment. Generally, a change in a security’s value caused by a change in the market or interest rate environment does not constitute an OTTI, but rather a temporary decline in fair value.

For fixed maturities, the Company considers whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before recovery, the credit quality of the issuer and the ability to recover all amounts outstanding when contractually due. When assessing whether it intends to sell a fixed-maturity security or if it is likely to be required to sell a fixed-maturity security before recovery of its amortized cost, the Company evaluates facts and circumstances including, but not limited to, decisions to reposition the investment portfolio, potential sales of investments to meet cash flow needs and potential sales of investments to capitalize on favorable pricing. For equity securities prior to the adoption of ASU 2016-01, the Company considered the near-term prospects of an issuer and its ability and intent to hold the security for a period of time sufficient to allow for anticipated recovery.

For fixed maturities where a decline in fair value is considered to be other-than-temporary and the Company intends to sell the security, or it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost, an impairment is recognized in net income based on the fair value of the security at the time of assessment, resulting in a new cost basis for the security. If the decline in fair value of a fixed-maturity security below its amortized cost is considered to be other-than-temporary based upon other considerations, the Company compares the estimated present value of the cash flows expected to be collected to the amortized cost of the security. The extent to which the estimated present value of the cash flows expected to be collected is less than the amortized cost of the security represents the credit-related portion of the OTTI, which is recognized in net income, resulting in a new cost basis for the security. Any remaining decline in fair value represents the noncredit portion of the OTTI, which is recognized in other comprehensive income. For equity securities prior to the adoption of ASU 2016-01, a decline in fair value that was considered to be other-than-temporary was recognized in net income based on the fair value of the security at the time of assessment, resulting in a new cost basis for the security.

The following tables summarize gross unrealized losses and fair value for available-for-sale securities by length of time that the securities have continuously been in an unrealized loss position:

	June 30, 2018
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	—	$	—		$	495	$	(3	)	$	495	$	(3	)
Obligations of states, municipalities and political subdivisions	57,877		(742		)	34,451		(1,128		)	92,328		(1,870		)
Corporate and other securities	64,209		(763		)	7,382		(122		)	71,591		(885		)
Asset-backed securities	73,520		(823		)	9,511		(278		)	83,031		(1,101		)
Residential mortgage-backed securities	22,523		(362		)	52,224		(2,673		)	74,747		(3,035		)
Total fixed-maturity securities	$	218,129	$	(2,690	)	$	104,063	$	(4,204	)	$	322,192	$	(6,894	)

At June 30, 2018, the Company held 324 fixed-maturity securities in an unrealized loss position with a total estimated fair value of $322.2 million and gross unrealized losses of $6.9 million. Of these securities, 122 were in a continuous unrealized loss position for greater than one year. As discussed above, the Company regularly reviews all fixed-maturity securities within its investment portfolio to determine whether any impairment has occurred. Unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At June 30, 2018, 89.5% of the Company’s fixed-maturity securities were rated "A-" or better and all of the Company’s fixed-maturity securities made expected coupon payments under the contractual terms of the securities. Management concluded that there were no other-than-temporary impairments from fixed-maturity securities with unrealized losses for the six months ended June 30, 2018.

	December 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	3,497	$	(2	)	$	5,488	$	(12	)	$	8,985	$	(14	)
Obligations of states, municipalities and political subdivisions	7,258		(36		)	38,143		(376		)	45,401		(412		)
Corporate and other securities	30,944		(98		)	13,444		(74		)	44,388		(172		)
Asset-backed securities	27,609		(108		)	10,706		(160		)	38,315		(268		)
Residential mortgage-backed securities	9,081		(83		)	57,262		(1,295		)	66,343		(1,378		)
Total fixed-maturity securities	78,389		(327		)	125,043		(1,917		)	203,432		(2,244		)
Equity securities:
Exchange traded funds	130		—			—		—			130		—
Nonredeemable preferred stocks	10,649		(231		)	—		—			10,649		(231		)
Total equity securities	10,779		(231		)	—		—			10,779		(231		)
Total investments available for sale	$	89,168	$	(558	)	$	125,043	$	(1,917	)	$	214,211	$	(2,475	)

At December 31, 2017, the Company held 195 fixed-maturity securities in an unrealized loss position with a total estimated fair value of $203.4 million and gross unrealized losses of $2.2 million. Of those securities, 126 were in a continuous unrealized loss position for greater than one year. Unrealized losses were caused by interest rate changes or other market factors and were not credit-specific issues. At December 31, 2017, 91.1% of the Company’s fixed-maturity securities were rated "A-" or better and all of the Company’s fixed-maturity securities made expected coupon payments under the contractual terms of the securities. At December 31, 2017, the Company held 13 securities in its equity portfolio with a total estimated fair value of $10.8 million and gross unrealized losses of $0.2 million. None of these securities were in a continuous unrealized loss position for greater than one year. Based on its review, the Company concluded that were no other-than-temporary impairments from fixed-maturity or equity securities with unrealized losses for the year ended December 31, 2017.

Contractual maturities of available-for-sale fixed-maturity securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at June 30, 2018 are summarized, by contractual maturity, as follows:

	June 30, 2018
	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	24,944	$	24,857
Due after one year through five years	49,867		49,735
Due after five years through ten years	39,180		39,529
Due after ten years	128,088		127,095
Asset-backed securities	125,030		124,048
Residential mortgage-backed securities	105,309		102,658
Total fixed maturities	$	472,418	$	467,922

Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties, and the lenders may have the right to put the securities back to the borrower.

Net investment income

The following table presents the components of net investment income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Interest:
Taxable bonds	$	2,239		$	1,508		$	4,000		$	3,045
Tax exempt municipal bonds	1,083			818			2,168			1,612
Cash equivalents and short-term investments	217			167			477			254
Dividends on equity securities	512			185			924			295
Gross investment income	4,051			2,678			7,569			5,206
Investment expenses	(269		)	(246		)	(558		)	(488		)
Net investment income	$	3,782		$	2,432		$	7,011		$	4,718

Realized investment gains and losses

The following table presents realized investment gains and losses for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,					Six Months Ended June 30,
	2018			2017		2018			2017
	(in thousands)
Fixed-maturity securities:
Realized gains	$	189		$	24	$	244		$	24
Realized losses	(4		)	—		(4		)	(32		)
Net realized gains (losses) fixed-maturity securities	185			24		240			(8		)
Equity securities:
Realized gains	—			—		57			—
Realized losses	(11		)	—		(11		)	—
Net realized gains (losses) equity securities	(11		)	—		46			—
Net realized investment gains (losses)	$	174		$	24	$	286		$	(8	)

Change in net unrealized gains (losses) on investments

For the three and six months ended June 30, 2018, the changes in net unrealized losses for fixed-maturity securities were $1.3 million and $7.4 million, respectively. For the three and six months ended June 30, 2017, the changes in net unrealized gains for fixed-maturity securities were $2.8 million and $3.5 million and the change in net unrealized gains for equity securities was $0.6 million and $1.5 million, respectively.

Insurance – statutory deposits

The Company had invested assets with a carrying value of $6.9 million and $7.1 million on deposit with state regulatory authorities at June 30, 2018 and December 31, 2017, respectively.

Payable for investments purchased

The Company recorded a payable for investments purchased, not yet settled, of $7.7 million at June 30, 2018 and $1.0 million at December 31, 2017. The payable balances were included in the "other liabilities" line item of the balance sheet and treated as non-cash transactions for purposes of cash flow presentation.

XML

Fair Value Measurements

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair value measurements

Fair value was estimated for each class of financial instrument for which it was practical to estimate fair value. Fair value is defined as the price in the principal market that would be received for an asset to facilitate an orderly transaction between market participants on the measurement date. Market participants are assumed to be independent, knowledgeable, able and willing to transact an exchange and not acting under duress. Fair value hierarchy disclosures are based on the quality of inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Adjustments to transaction prices or quoted market prices may be required in illiquid or disorderly markets in order to estimate fair value.

The three levels of the fair value hierarchy are defined as follows:

Level 1 - Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities traded in active markets.

Level 2 - Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability and market-corroborated inputs.

Level 3 - Inputs to the valuation methodology are unobservable for the asset or liability and are significant to the fair value measurement.

Fair values of the Company's investment portfolio are estimated using unadjusted prices obtained by its investment manager from third party pricing services, where available. For securities where the Company is unable to obtain fair values from a pricing service or broker, fair values are estimated using information obtained from the Company's investment manager. Management performs several procedures to ascertain the reasonableness of investment values included in the condensed consolidated financial statements including 1) obtaining and reviewing internal control reports from the Company's investment manager that obtain fair values from third party pricing services, 2) discussing with the Company's investment manager its process for reviewing and validating pricing obtained from outside pricing services and 3) reviewing the security pricing received from the Company's investment manager and monitoring changes in unrealized gains and losses. The Company has evaluated the various types of securities in its investment portfolio to determine an appropriate fair value hierarchy level based upon trading activity and the observability of market inputs.

The following tables present the balances of assets measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017, by level within the fair value hierarchy.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	607	$	—	$	—	$	607
Obligations of states, municipalities and political subdivisions	—		155,601		—		155,601
Corporate and other securities	—		85,008		—		85,008
Asset-backed securities	—		124,048		—		124,048
Residential mortgage-backed securities	—		102,658		—		102,658
Total fixed maturities	607		467,315		—		467,922
Equity securities:
Exchange traded funds	39,434		—		—		39,434
Nonredeemable preferred stock	—		18,785		—		18,785
Total equity securities	39,434		18,785		—		58,219
Total	$	40,041	$	486,100	$	—	$	526,141

	December 31, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,098	$	—	$	—	$	9,098
Obligations of states, municipalities and political subdivisions	—		164,326		—		164,326
Corporate and other securities	—		71,631		—		71,631
Asset-backed securities	—		95,360		—		95,360
Residential mortgage-backed securities	—		84,776		—		84,776
Total fixed maturities	9,098		416,093		—		425,191
Equity securities:
Exchange traded funds	34,380		—		—		34,380
Nonredeemable preferred stock	—		19,752		—		19,752
Total equity securities	34,380		19,752		—		54,132
Total	$	43,478	$	435,845	$	—	$	479,323

There were no transfers into or out of Level 1 and Level 2 during the three months ended June 30, 2018. There were no assets or liabilities measured at fair value on a nonrecurring basis as of June 30, 2018 or December 31, 2017.

Due to the relatively short-term nature of cash and cash equivalents, short-term investments, receivables and payables, their carrying amounts are reasonable estimates of fair value.

XML

Deferred Policy Acquisition Costs

6 Months Ended

Jun. 30, 2018

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred Policy Acquisition Costs

Deferred policy acquisition costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Balance, beginning of period	$	12,768		$	10,501		$	11,775		$	10,150
Policy acquisition costs deferred:
Direct commissions	10,298			8,625			19,675			16,505
Ceding commissions	(2,609		)	(2,392		)	(5,150		)	(4,983		)
Other underwriting and policy acquisition costs	694			756			1,503			1,517
Policy acquisition costs deferred	8,383			6,989			16,028			13,039
Amortization of net policy acquisition costs	(7,028		)	(5,912		)	(13,680		)	(11,611		)
Balance, end of period	$	14,123		$	11,578		$	14,123		$	11,578

XML

Underwriting, Acquisition and Insurance Expenses

6 Months Ended

Jun. 30, 2018

Underwriting, Acquisition and Insurance Expenses [Abstract]

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses for the three and six months ended June 30, 2018 and 2017 consist of the following:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	8,756		$	7,544		$	17,135		$	14,693
Ceding commissions	(2,464		)	(2,466		)	(4,908		)	(4,812		)
Other operating expenses	6,227			5,414			12,690			11,905
Total	$	12,519		$	10,492		$	24,917		$	21,786

Other operating expenses within underwriting, acquisition and insurance expenses include salaries, bonus and employee benefits expenses of $5.3 million and $4.5 million for the three months ended June 30, 2018 and 2017, respectively. Salaries, bonus and employee benefits expenses were $10.3 million and $9.5 million for the six months ended June 30, 2018 and 2017, respectively.

XML

Stock-based Compensation

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

Stock-based compensation

On July 27, 2016, the Kinsale Capital Group, Inc. 2016 Omnibus Incentive Plan (the "2016 Incentive Plan") became effective. The 2016 Incentive Plan provides for grants of stock options, stock appreciation rights, restricted stock, other stock-based awards and other cash-based awards to directors, officers and other employees, as well as independent contractors or consultants providing consulting or advisory services to the Company. The number of shares of common stock available for issuance under the 2016 Incentive Plan may not exceed 2,073,832. The compensation cost that has been charged against income for share-based compensation arrangements was $0.6 million and $0.3 million for the six months ended June 30, 2018 and 2017, respectively.

Restricted Stock Awards

During the six months ended June 30, 2018, the Board of Directors approved, and the Company granted, restricted stock awards under the 2016 Incentive Plan. The restricted stock awards were valued on the date of grant and will vest over a period of one to four years corresponding to the anniversary date of the grants. The fair value of restricted stock awards was determined based on the closing trading price of the Company’s shares on the grant date or, if no shares were traded on the grant date, the last preceding date for which there was a sale of shares. Except for restrictions placed on the transferability of restricted stock, holders of unvested restricted stock have full stockholder’s rights, including voting rights and the right to receive cash dividends. Unvested shares of restricted stock awards and accrued dividends, if any, are forfeited upon the termination of service to or employment with the Company.

A summary of all restricted stock activity under the equity compensation plans for the six months ended June 30, 2018 is as follows:

	For the Six Months Ended June 30, 2018
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	—	$	—
Granted	94,270	$	52.99
Vested	—	$	—
Forfeited	—	$	—
Nonvested outstanding at the end of the period	94,270	$	52.99

As of June 30, 2018, the Company had $4.7 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 3.8 years.

Stock Options

On July 27, 2016, the Board of Directors approved, and the Company granted, 1,036,916 stock options with an exercise price equal to the Initial Public Offering price of $16.00 per share and a weighted-average grant-date fair value of $2.71 per share. The options have a maximum contractual term of 10 years and vest in 4 equal annual installments following the date of the grant.

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

⁽¹⁾ Expected volatility was based on the Company’s competitors within the industry.

⁽²⁾ Expected life was calculated using the simplified method, which was an average of the contractual term of the option and its ordinary vesting period, as the Company did not have sufficient historical data for determining the expected term of our stock option awards.

A summary of option activity as of June 30, 2018, and changes during the period then ended is presented below:

	Number of Shares		Weighted-average exercise price		Weighted-average remaining years of contractual term	Aggregate intrinsic value (in thousands)
Outstanding at January 1, 2018	930,440		$	16.00
Granted	—		—
Forfeited	(8,985	)	16.00
Exercised	(39,027	)	16.00
Outstanding at June 30, 2018	882,428		$	16.00	8.1	$	34,291
Exercisable at June 30, 2018	179,803		$	16.00	8.1	$	6,987

The total intrinsic value of options exercised during the six months ended June 30, 2018 was $1.4 million. There were no options exercised during the six months ended June 30, 2017. As of June 30, 2018, the Company had $1.3 million of total unrecognized stock-based compensation expense expected to be charged to earnings over a weighted-average period of 2.1 years.

XML

Earnings Per Share

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share

Earnings per share

The following represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in thousands, except per share data)
Net income	$	10,112	$	8,495	$	17,399	$	14,776
Weighted average common shares outstanding - basic	21,070		20,969		21,058		20,969
Effect of potential dilutive securities:
Conversion of stock options	593		488		588		456
Conversion of restricted stock	3		—		2		—
Weighted average common shares outstanding - diluted	21,666		21,457		21,648		21,425
Earnings per common share:
Basic	$	0.48	$	0.41	$	0.83	$	0.70
Diluted	$	0.47	$	0.40	$	0.80	$	0.69

There were approximately 88 thousand anti-dilutive stock awards for the three and six months ended June 30, 2018. There were no anti-dilutive stock awards for the three and six months ended June 30, 2017.

XML

Income taxes

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

Income taxes

On December 22, 2017, the President of the United States signed into law the TCJA. The legislation significantly changed U.S. tax law by, among other things, lowering corporate income tax rates from 35% to 21% effective January 1, 2018, and modifying the manner in which property and casualty insurance loss reserves are computed for federal income tax purposes. The Company records a deduction for unpaid losses and loss adjustment expenses when computing its taxable income. Prior to the new legislation, the deduction was discounted using interest rates and loss payment patterns prescribed by the U.S. Treasury. The TCJA changed the prescribed interest rates, which are now based on corporate bond yield curves, and extended the applicable time periods for the loss payment pattern period for long-tailed lines of business. Beginning in 2018, a transition rule will spread the adjustments related to pre-effective-date losses and loss adjustment expenses over the next eight years.

U.S. GAAP requires companies to recognize the effect of tax law changes in the period of enactment. The SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the TCJA. The TCJA did not specify the application of certain elements of the legislation and the U.S. Treasury has yet to issue interpretive guidance to specify the loss payment patterns and the corporate bond yield curve under the new law for 2018. The Company recognized provisional tax amounts of $3.5 million related to the transition adjustment for loss discounting, which was included in its components of deferred tax assets and liabilities as part of its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from these provisional amounts due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company may take as a result of the TCJA. During the six months ended June 30, 2018, there were no changes to these amounts and no measurement period adjustments were recorded. The accounting is expected to be complete when the U.S. Treasury issues further guidance and the Company has completed its calculations.

The Company uses the estimated annual effective tax rate method for calculating its tax provision in interim periods, which represents the Company's best estimate of the effective tax rate expected for the full year. The estimated annual effective tax rate typically differs from the U.S. statutory tax rate primarily as a result of tax-exempt investment income and any discrete items recognized during the period. The Company's effective tax rate was 18.9% and 18.2% for the three and six months ended June 30, 2018, respectively. The Company's effective tax rate was 33.4% and 33.0% for the three and six months ended June 30, 2017, respectively. The decrease in the effective tax rates in the second quarter and first half of 2018 compared to the same periods in the prior year was primarily due to the impact of the TCJA, which lowered the U.S. statutory tax rate from 35% to 21% starting January 1, 2018, and the recognition of tax benefits related to stock options exercised during the second quarter and first six months of 2018.

XML

Reserves for Unpaid Losses and Loss Adjustment Expenses

6 Months Ended

Jun. 30, 2018

Liability for Unpaid Claims and Claims Adjustment Expense, Activity in Liability [Abstract]

Reserves for Unpaid Losses and Loss Adjustment Expenses

Reserves for unpaid losses and loss adjustment expenses

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	June 30,
	2018			2017
	(in thousands)
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	$	267,493		$	194,602
Commutation of MLQS	—			27,929
Adjusted net reserves for losses and loss adjustment expenses, beginning of year	267,493			222,531
Incurred losses and loss adjustment expenses:
Current year	62,389			52,902
Prior years	(3,523		)	(8,936		)
Total net losses and loss adjustment expenses incurred	58,866			43,966
Payments:
Current year	1,858			2,185
Prior years	33,309			19,508
Total payments	35,167			21,693
Net reserves for unpaid losses and loss adjustment expenses, end of period	291,192			244,804
Reinsurance recoverable on unpaid losses	53,373			39,624
Gross reserves for unpaid losses and loss adjustment expenses, end of period	$	344,565		$	284,428

During the six months ended June 30, 2018, the reserves for unpaid losses and loss adjustment expenses held at December 31, 2017 developed favorably by $3.5 million. The favorable development was primarily attributable to the 2017 accident year of $2.5 million, the 2016 accident year of $3.0 million and the 2015 accident year of $0.8 million, which resulted from reported losses emerging at a lower level than expected. This favorable development was offset in part by adverse development from the 2011 through 2014 accident years of $2.8 million.

During the six months ended June 30, 2017, the reserves for unpaid losses and loss adjustment expenses held at December 31, 2016 developed favorably by $8.9 million. The favorable development was attributable primarily to the 2016 accident year of $5.8 million and the 2015 accident year of $3.7 million, which was due to reported losses emerging at a lower level than expected. The favorable development was offset in part by adverse development of $1.1 million for the 2013 accident year.

Multi-line quota share reinsurance

Effective January 1, 2017, the Company commuted its multi-line quota share treaty ("MLQS") covering the period January 1, 2015 to December 31, 2015, which reduced reinsurance recoverables on unpaid losses by approximately $27.9 million. The commutation did not have any effect on the Company's results of operations or cash flows for the applicable period.

XML

Reinsurance

6 Months Ended

Jun. 30, 2018

Reinsurance Disclosures [Abstract]

Reinsurance

Reinsurance

The following table summarizes the effect of reinsurance on premiums written and earned for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Written:
Direct	$	69,981		$	57,753		$	133,828		$	110,615
Assumed	—			—			—			—
Ceded	(9,090		)	(7,980		)	(17,846		)	(16,680		)
Net written	$	60,891		$	49,773		$	115,982		$	93,935
Earned:
Direct	$	59,603		$	51,304		$	116,196		$	99,766
Assumed	—			—			—			—
Ceded	(8,710		)	(8,252		)	(17,242		)	(16,281		)
Net earned	$	50,893		$	43,052		$	98,954		$	83,485

Incurred losses and loss adjustment expenses were net of reinsurance (ceded incurred losses and loss adjustment expenses) of $5.0 million and $(0.6) million for the three months ended June 30, 2018 and 2017, respectively. Ceded incurred losses and loss adjustment expenses were $7.9 million and $1.8 million for the six months ended June 30, 2018 and 2017, respectively. At June 30, 2018, reinsurance recoverables on paid and unpaid losses were $1.0 million and $53.4 million, respectively. At December 31, 2017, reinsurance recoverables on paid and unpaid losses were $1.4 million and $48.2 million, respectively.

XML

Other Comprehensive Income

6 Months Ended

Jun. 30, 2018

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Other Comprehensive Income

Other comprehensive (loss) income

The following table summarizes the components of other comprehensive (loss) income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Unrealized (losses) gains arising during the period, before income taxes:
Fixed-maturity securities	$	(1,101	)	$	2,792		$	(7,193	)	$	3,489
Equity securities (1)	—			577			—			1,498
Total unrealized (losses) gains arising during the period, before income taxes	(1,101		)	3,369			(7,193		)	4,987
Income taxes	232			(1,179		)	1,511			(1,745		)
Unrealized (losses) gains arising during the period, net of income taxes	(869		)	2,190			(5,682		)	3,242
Less reclassification adjustment:
Net realized gains (losses) on fixed-maturity securities, before income taxes	185			24			240			(8		)
Income taxes	(38		)	(8		)	(50		)	3
Reclassification adjustment included in net income	147			16			190			(5		)
Other comprehensive (loss) income	$	(1,016	)	$	2,174		$	(5,872	)	$	3,247

⁽¹⁾ Adoption of ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities," which was effective January 1, 2018, eliminated the available-for-sale classification for equity investments and required changes in unrealized gains and losses in the fair value of equity securities to be recognized in net income.

The sale of an available-for-sale fixed-maturity security results in amounts being reclassified from accumulated other comprehensive income to realized gains or losses in current period earnings. The related tax effect of the reclassification adjustment is recorded in income tax expense in current period earnings. See Note 2 for additional information.

XML

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of presentation

The accompanying condensed consolidated financial statements and notes have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and do not contain all of the information and footnotes required by U.S. GAAP for complete financial statements. For a more complete description of the Company’s business and accounting policies, these condensed consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements of Kinsale Capital Group, Inc. and its wholly owned subsidiaries (the "Company") included in the Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of management, all adjustments necessary for a fair presentation of the condensed consolidated financial statements have been included. Such adjustments consist only of normal recurring items. All significant intercompany balances and transactions have been eliminated in consolidation. Interim results are not necessarily indicative of results of operations for the full year.

Use of Estimates

Use of estimates

The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Management periodically reviews its estimates and assumptions.

Recently Adopted Accounting Pronouncements

Recently adopted accounting pronouncements

ASU 2016-01, Financial Instruments - Overall: Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-01, "Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"), which eliminated the available-for-sale classification for equity investments, required changes in unrealized gains and losses in fair value of equity investments to be recognized in net income, required public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, required separate presentation of financial assets and financial liabilities by measurement category and form of financial asset, and eliminated the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that was required to be disclosed for financial instruments measured at amortized cost. Effective January 1, 2018, the Company adopted this ASU and recorded a cumulative-effect adjustment, which reclassified unrealized gains of $6.5 million, net of taxes, on equity investments from accumulated other comprehensive income ("AOCI") to retained earnings. Prior periods have not been restated to conform to the current presentation. 

ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

In February 2018, the FASB issued ASU 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which permitted companies to reclassify the disproportionate income tax effects of the Tax Cuts and Jobs Act of 2017 (the "TCJA") on items within AOCI to retained earnings. The FASB refers to these amounts as "stranded tax effects." The guidance is effective for all companies for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. Effective January 1, 2018, the Company elected to early adopt this ASU and to reclassify the stranded income tax effects for available-for-sale securities of $1.3 million from AOCI to retained earnings. Other than those effects related to the TCJA, the Company uses the portfolio approach to release stranded tax effects in AOCI related to its available-for-sale fixed-maturity securities and its available-for-sale equity securities (prior to the adoption of ASU 2016-01). Under this approach, stranded tax effects remaining in AOCI are released only when the entire portfolio of the available-for-sale fixed-maturity securities and available-for-sale equity securities are liquidated, sold or extinguished.

Prospective Accounting Pronouncements

Prospective accounting pronouncements

ASU 2016-02, Leases (Topic 842)

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)" to improve the financial reporting of leasing transactions. Under this ASU, lessees will recognize a right-of-use asset and corresponding liability on the balance sheet for all leases, except for leases covering a period of fewer than 12 months. The liability is to be initially measured at the present value of the future minimum lease payments taking into account renewal options if applicable plus initial incremental direct costs such as commissions. The minimum payments are discounted using the rate implicit in the lease or, if not known, the lessee’s incremental borrowing rate at the inception of the lease. The lessee’s income statement treatment for leases will vary depending on the nature of what is being leased. A financing type lease is present when, among other matters, the asset is being leased for a substantial portion of its economic life or has an end-of-term title transfer or a bargain purchase option as in today’s practice. The payment of the liability set up for such leases will be apportioned between interest and principal; the right-of use asset will be generally amortized on a straight-line basis. If the lease does not qualify as a financing type lease, it will be accounted for on the income statement as rent on a straight-line basis. This ASU is effective for annual and interim reporting periods beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2016-13, Financial Instruments – Credit Losses (Topic 326)

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments – Credit Losses (Topic 326)" to provide more useful information about the expected credit losses on financial instruments. Current GAAP delays the recognition of credit losses until it is probable a loss has been incurred. The update will require a financial asset measured at amortized cost to be presented at the net amount expected to be collected by means of an allowance for credit losses that runs through net income. Credit losses relating to available-for-sale debt securities will also be recorded through an allowance for credit losses. However, the amendments would limit the amount of the allowance to the amount by which fair value is below amortized cost. The measurement of credit losses on available-for-sale securities is similar under current GAAP, but the update requires the use of the allowance account through which amounts can be reversed, rather than through an irreversible write-down. This ASU is effective for annual and interim reporting periods beginning after December 15, 2019. Early adoption is permitted beginning after December 15, 2018. Upon adoption, the update will be applied using the modified-retrospective approach, by which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period presented. The Company is currently evaluating the impact of the adoption on its consolidated financial statements.

ASU 2017-08, Premium Amortization on Purchased Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, "Premium Amortization on Purchased Callable Debt Securities," which shortens the amortization period of the premium for certain callable debt securities, from the contractual maturity date to the earliest call date. This ASU is effective in fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted, including in an interim period. Upon adoption, the update will be applied on a modified retrospective basis, with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period presented. The Company does not expect the adoption of ASU 2017-08 to have a material impact on its financial statements.

There are no other prospective accounting standards which, upon their effective date, would have a material impact on the Company's consolidated financial statements.

XML

Investments (Tables)

6 Months Ended

Jun. 30, 2018

Investments [Abstract]

Available-for-sale Investments

The following tables summarize the available-for-sale investments at June 30, 2018 and December 31, 2017:

	June 30, 2018
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	608	$	2	$	(3	)	$	607
Obligations of states, municipalities and political subdivisions	155,799		1,672		(1,870		)	155,601
Corporate and other securities	85,672		221		(885		)	85,008
Asset-backed securities	125,030		119		(1,101		)	124,048
Residential mortgage-backed securities	105,309		384		(3,035		)	102,658
Total available-for-sale investments	$	472,418	$	2,398	$	(6,894	)	$	467,922

	December 31, 2017
	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Estimated Fair Value
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,108	$	4	$	(14	)	$	9,098
Obligations of states, municipalities and political subdivisions	161,012		3,726		(412		)	164,326
Corporate and other securities	71,224		579		(172		)	71,631
Asset-backed securities	95,223		405		(268		)	95,360
Residential mortgage-backed securities	85,688		466		(1,378		)	84,776
Total fixed-maturity securities	422,255		5,180		(2,244		)	425,191
Equity securities:
Exchange traded funds	26,041		8,339		—			34,380
Nonredeemable preferred stock	19,875		108		(231		)	19,752
Total equity securities	45,916		8,447		(231		)	54,132
Total available-for-sale investments	$	468,171	$	13,627	$	(2,475	)	$	479,323

Available-for-sale Securities in a Loss Position

	December 31, 2017
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	3,497	$	(2	)	$	5,488	$	(12	)	$	8,985	$	(14	)
Obligations of states, municipalities and political subdivisions	7,258		(36		)	38,143		(376		)	45,401		(412		)
Corporate and other securities	30,944		(98		)	13,444		(74		)	44,388		(172		)
Asset-backed securities	27,609		(108		)	10,706		(160		)	38,315		(268		)
Residential mortgage-backed securities	9,081		(83		)	57,262		(1,295		)	66,343		(1,378		)
Total fixed-maturity securities	78,389		(327		)	125,043		(1,917		)	203,432		(2,244		)
Equity securities:
Exchange traded funds	130		—			—		—			130		—
Nonredeemable preferred stocks	10,649		(231		)	—		—			10,649		(231		)
Total equity securities	10,779		(231		)	—		—			10,779		(231		)
Total investments available for sale	$	89,168	$	(558	)	$	125,043	$	(1,917	)	$	214,211	$	(2,475	)

The following tables summarize gross unrealized losses and fair value for available-for-sale securities by length of time that the securities have continuously been in an unrealized loss position:

	June 30, 2018
	Less than 12 Months					12 Months or Longer					Total
	Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses			Estimated Fair Value		Gross Unrealized Holding Losses
	(in thousands)
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	—	$	—		$	495	$	(3	)	$	495	$	(3	)
Obligations of states, municipalities and political subdivisions	57,877		(742		)	34,451		(1,128		)	92,328		(1,870		)
Corporate and other securities	64,209		(763		)	7,382		(122		)	71,591		(885		)
Asset-backed securities	73,520		(823		)	9,511		(278		)	83,031		(1,101		)
Residential mortgage-backed securities	22,523		(362		)	52,224		(2,673		)	74,747		(3,035		)
Total fixed-maturity securities	$	218,129	$	(2,690	)	$	104,063	$	(4,204	)	$	322,192	$	(6,894	)

Contractual Maturities of Available-for-sale Fixed Maturity Securities

The amortized cost and estimated fair value of available-for-sale fixed-maturity securities at June 30, 2018 are summarized, by contractual maturity, as follows:

	June 30, 2018
	Amortized		Estimated
	Cost		Fair Value
	(in thousands)
Due in one year or less	$	24,944	$	24,857
Due after one year through five years	49,867		49,735
Due after five years through ten years	39,180		39,529
Due after ten years	128,088		127,095
Asset-backed securities	125,030		124,048
Residential mortgage-backed securities	105,309		102,658
Total fixed maturities	$	472,418	$	467,922

Net Investment Income

The following table presents the components of net investment income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Interest:
Taxable bonds	$	2,239		$	1,508		$	4,000		$	3,045
Tax exempt municipal bonds	1,083			818			2,168			1,612
Cash equivalents and short-term investments	217			167			477			254
Dividends on equity securities	512			185			924			295
Gross investment income	4,051			2,678			7,569			5,206
Investment expenses	(269		)	(246		)	(558		)	(488		)
Net investment income	$	3,782		$	2,432		$	7,011		$	4,718

Realized Gain (Loss) on Investments

The following table presents realized investment gains and losses for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,					Six Months Ended June 30,
	2018			2017		2018			2017
	(in thousands)
Fixed-maturity securities:
Realized gains	$	189		$	24	$	244		$	24
Realized losses	(4		)	—		(4		)	(32		)
Net realized gains (losses) fixed-maturity securities	185			24		240			(8		)
Equity securities:
Realized gains	—			—		57			—
Realized losses	(11		)	—		(11		)	—
Net realized gains (losses) equity securities	(11		)	—		46			—
Net realized investment gains (losses)	$	174		$	24	$	286		$	(8	)

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value on a Recurring Basis

The following tables present the balances of assets measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017, by level within the fair value hierarchy.

	June 30, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	607	$	—	$	—	$	607
Obligations of states, municipalities and political subdivisions	—		155,601		—		155,601
Corporate and other securities	—		85,008		—		85,008
Asset-backed securities	—		124,048		—		124,048
Residential mortgage-backed securities	—		102,658		—		102,658
Total fixed maturities	607		467,315		—		467,922
Equity securities:
Exchange traded funds	39,434		—		—		39,434
Nonredeemable preferred stock	—		18,785		—		18,785
Total equity securities	39,434		18,785		—		58,219
Total	$	40,041	$	486,100	$	—	$	526,141

	December 31, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Fixed maturities:
U.S. Treasury securities and obligations of U.S. government agencies	$	9,098	$	—	$	—	$	9,098
Obligations of states, municipalities and political subdivisions	—		164,326		—		164,326
Corporate and other securities	—		71,631		—		71,631
Asset-backed securities	—		95,360		—		95,360
Residential mortgage-backed securities	—		84,776		—		84,776
Total fixed maturities	9,098		416,093		—		425,191
Equity securities:
Exchange traded funds	34,380		—		—		34,380
Nonredeemable preferred stock	—		19,752		—		19,752
Total equity securities	34,380		19,752		—		54,132
Total	$	43,478	$	435,845	$	—	$	479,323

XML

Deferred Policy Acquisition Costs (Tables)

6 Months Ended

Jun. 30, 2018

Deferred Policy Acquisition Costs Disclosures [Abstract]

Deferred Policy Acquisition Costs

The following table presents the amounts of policy acquisition costs deferred and amortized for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Balance, beginning of period	$	12,768		$	10,501		$	11,775		$	10,150
Policy acquisition costs deferred:
Direct commissions	10,298			8,625			19,675			16,505
Ceding commissions	(2,609		)	(2,392		)	(5,150		)	(4,983		)
Other underwriting and policy acquisition costs	694			756			1,503			1,517
Policy acquisition costs deferred	8,383			6,989			16,028			13,039
Amortization of net policy acquisition costs	(7,028		)	(5,912		)	(13,680		)	(11,611		)
Balance, end of period	$	14,123		$	11,578		$	14,123		$	11,578

XML

Underwriting, Acquisition and Insurance Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Underwriting, Acquisition and Insurance Expenses [Abstract]

Underwriting, acquisition and insurance expenses

Underwriting, acquisition and insurance expenses for the three and six months ended June 30, 2018 and 2017 consist of the following:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Underwriting, acquisition and insurance expenses incurred:
Direct commissions	$	8,756		$	7,544		$	17,135		$	14,693
Ceding commissions	(2,464		)	(2,466		)	(4,908		)	(4,812		)
Other operating expenses	6,227			5,414			12,690			11,905
Total	$	12,519		$	10,492		$	24,917		$	21,786

XML

Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Restricted Stock Activity

A summary of all restricted stock activity under the equity compensation plans for the six months ended June 30, 2018 is as follows:

	For the Six Months Ended June 30, 2018
	Number of Shares	Weighted Average Grant Date Fair Value per Share
Nonvested outstanding at the beginning of the period	—	$	—
Granted	94,270	$	52.99
Vested	—	$	—
Forfeited	—	$	—
Nonvested outstanding at the end of the period	94,270	$	52.99

Stock Options Valuation Assumptions

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

Stock Options Activity

A summary of option activity as of June 30, 2018, and changes during the period then ended is presented below:

	Number of Shares		Weighted-average exercise price		Weighted-average remaining years of contractual term	Aggregate intrinsic value (in thousands)
Outstanding at January 1, 2018	930,440		$	16.00
Granted	—		—
Forfeited	(8,985	)	16.00
Exercised	(39,027	)	16.00
Outstanding at June 30, 2018	882,428		$	16.00	8.1	$	34,291
Exercisable at June 30, 2018	179,803		$	16.00	8.1	$	6,987

XML

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share

The following represents a reconciliation of the numerator and denominator of the basic and diluted earnings per share computations contained in the consolidated financial statements:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in thousands, except per share data)
Net income	$	10,112	$	8,495	$	17,399	$	14,776
Weighted average common shares outstanding - basic	21,070		20,969		21,058		20,969
Effect of potential dilutive securities:
Conversion of stock options	593		488		588		456
Conversion of restricted stock	3		—		2		—
Weighted average common shares outstanding - diluted	21,666		21,457		21,648		21,425
Earnings per common share:
Basic	$	0.48	$	0.41	$	0.83	$	0.70
Diluted	$	0.47	$	0.40	$	0.80	$	0.69

XML

Reserves for Unpaid Losses and Loss Adjustment Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Liability for Unpaid Claims and Claims Adjustment Expense, Activity in Liability [Abstract]

Schedule of Unpaid Losses and Loss Adjustment Expenses

The following table presents a reconciliation of consolidated beginning and ending reserves for unpaid losses and loss adjustment expenses:

	June 30,
	2018			2017
	(in thousands)
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	$	267,493		$	194,602
Commutation of MLQS	—			27,929
Adjusted net reserves for losses and loss adjustment expenses, beginning of year	267,493			222,531
Incurred losses and loss adjustment expenses:
Current year	62,389			52,902
Prior years	(3,523		)	(8,936		)
Total net losses and loss adjustment expenses incurred	58,866			43,966
Payments:
Current year	1,858			2,185
Prior years	33,309			19,508
Total payments	35,167			21,693
Net reserves for unpaid losses and loss adjustment expenses, end of period	291,192			244,804
Reinsurance recoverable on unpaid losses	53,373			39,624
Gross reserves for unpaid losses and loss adjustment expenses, end of period	$	344,565		$	284,428

XML

Reinsurance (Tables)

6 Months Ended

Jun. 30, 2018

Reinsurance Disclosures [Abstract]

Effects of Reinsurance

The following table summarizes the effect of reinsurance on premiums written and earned for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Written:
Direct	$	69,981		$	57,753		$	133,828		$	110,615
Assumed	—			—			—			—
Ceded	(9,090		)	(7,980		)	(17,846		)	(16,680		)
Net written	$	60,891		$	49,773		$	115,982		$	93,935
Earned:
Direct	$	59,603		$	51,304		$	116,196		$	99,766
Assumed	—			—			—			—
Ceded	(8,710		)	(8,252		)	(17,242		)	(16,281		)
Net earned	$	50,893		$	43,052		$	98,954		$	83,485

XML

Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2018

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Comprehensive Income (Loss)

The following table summarizes the components of other comprehensive (loss) income for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(in thousands)
Unrealized (losses) gains arising during the period, before income taxes:
Fixed-maturity securities	$	(1,101	)	$	2,792		$	(7,193	)	$	3,489
Equity securities (1)	—			577			—			1,498
Total unrealized (losses) gains arising during the period, before income taxes	(1,101		)	3,369			(7,193		)	4,987
Income taxes	232			(1,179		)	1,511			(1,745		)
Unrealized (losses) gains arising during the period, net of income taxes	(869		)	2,190			(5,682		)	3,242
Less reclassification adjustment:
Net realized gains (losses) on fixed-maturity securities, before income taxes	185			24			240			(8		)
Income taxes	(38		)	(8		)	(50		)	3
Reclassification adjustment included in net income	147			16			190			(5		)
Other comprehensive (loss) income	$	(1,016	)	$	2,174		$	(5,872	)	$	3,247

XML

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of tax effects resulting from the TCJA	$ 0
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment - net unrealized gains on equity securities	6,500	$ 0
Accounting Standards Update 2018-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of tax effects resulting from the TCJA	$ 1,300

XML

Investments Investments (Available for Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 472,418	$ 468,171
Gross Unrealized Holding Gains	2,398	13,627
Gross Unrealized Holding Losses	(6,894)	(2,475)
Estimated Fair Value	467,922	479,323
Total fixed maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		422,255
Gross Unrealized Holding Gains		5,180
Gross Unrealized Holding Losses		(2,244)
Estimated Fair Value		425,191
U.S. Treasury securities and obligations of U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	608	9,108
Gross Unrealized Holding Gains	2	4
Gross Unrealized Holding Losses	(3)	(14)
Estimated Fair Value	607	9,098
Obligations of states, municipalities and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	155,799	161,012
Gross Unrealized Holding Gains	1,672	3,726
Gross Unrealized Holding Losses	(1,870)	(412)
Estimated Fair Value	155,601	164,326
Corporate and other securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	85,672	71,224
Gross Unrealized Holding Gains	221	579
Gross Unrealized Holding Losses	(885)	(172)
Estimated Fair Value	85,008	71,631
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	125,030	95,223
Gross Unrealized Holding Gains	119	405
Gross Unrealized Holding Losses	(1,101)	(268)
Estimated Fair Value	124,048	95,360
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	105,309	85,688
Gross Unrealized Holding Gains	384	466
Gross Unrealized Holding Losses	(3,035)	(1,378)
Estimated Fair Value	$ 102,658	84,776
Total equity securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		45,916
Gross Unrealized Holding Gains		8,447
Gross Unrealized Holding Losses		(231)
Estimated Fair Value		54,132
Exchange traded funds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		26,041
Gross Unrealized Holding Gains		8,339
Gross Unrealized Holding Losses		0
Estimated Fair Value		34,380
Nonredeemable preferred stock [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		19,875
Gross Unrealized Holding Gains		108
Gross Unrealized Holding Losses		(231)
Estimated Fair Value		$ 19,752

XML

Investments Available-for-Sale Securities in a Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	$ 218,129	$ 89,168
Gross unrealized holding losses, less than 12 months	(2,690)	(558)
12 Months or Longer, Estimated Fair Value	104,063	125,043
12 Months or Longer, Gross Unrealized Holding Losses	(4,204)	(1,917)
Total Estimated Fair Value	322,192	214,211
Total Gross Unrealized Holding Losses	(6,894)	(2,475)
Total fixed maturities
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value		78,389
Gross unrealized holding losses, less than 12 months		(327)
12 Months or Longer, Estimated Fair Value		125,043
12 Months or Longer, Gross Unrealized Holding Losses		(1,917)
Total Estimated Fair Value	322,200	203,432
Total Gross Unrealized Holding Losses	(6,900)	(2,244)
U.S. Treasury securities and obligations of U.S. government agencies [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	0	3,497
Gross unrealized holding losses, less than 12 months	0	(2)
12 Months or Longer, Estimated Fair Value	495	5,488
12 Months or Longer, Gross Unrealized Holding Losses	(3)	(12)
Total Estimated Fair Value	495	8,985
Total Gross Unrealized Holding Losses	(3)	(14)
Obligations of states, municipalities and political subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	57,877	7,258
Gross unrealized holding losses, less than 12 months	(742)	(36)
12 Months or Longer, Estimated Fair Value	34,451	38,143
12 Months or Longer, Gross Unrealized Holding Losses	(1,128)	(376)
Total Estimated Fair Value	92,328	45,401
Total Gross Unrealized Holding Losses	(1,870)	(412)
Corporate and other securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	64,209	30,944
Gross unrealized holding losses, less than 12 months	(763)	(98)
12 Months or Longer, Estimated Fair Value	7,382	13,444
12 Months or Longer, Gross Unrealized Holding Losses	(122)	(74)
Total Estimated Fair Value	71,591	44,388
Total Gross Unrealized Holding Losses	(885)	(172)
Asset-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	73,520	27,609
Gross unrealized holding losses, less than 12 months	(823)	(108)
12 Months or Longer, Estimated Fair Value	9,511	10,706
12 Months or Longer, Gross Unrealized Holding Losses	(278)	(160)
Total Estimated Fair Value	83,031	38,315
Total Gross Unrealized Holding Losses	(1,101)	(268)
Residential mortgage-backed securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value	22,523	9,081
Gross unrealized holding losses, less than 12 months	(362)	(83)
12 Months or Longer, Estimated Fair Value	52,224	57,262
12 Months or Longer, Gross Unrealized Holding Losses	(2,673)	(1,295)
Total Estimated Fair Value	74,747	66,343
Total Gross Unrealized Holding Losses	$ (3,035)	(1,378)
Total equity securities
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value		10,779
Gross unrealized holding losses, less than 12 months		(231)
12 Months or Longer, Estimated Fair Value		0
12 Months or Longer, Gross Unrealized Holding Losses		0
Total Estimated Fair Value		10,779
Total Gross Unrealized Holding Losses		(231)
Exchange traded funds [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value		130
Gross unrealized holding losses, less than 12 months		0
12 Months or Longer, Estimated Fair Value		0
12 Months or Longer, Gross Unrealized Holding Losses		0
Total Estimated Fair Value		130
Total Gross Unrealized Holding Losses		0
Nonredeemable preferred stock [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Estimated Fair Value		10,649
Gross unrealized holding losses, less than 12 months		(231)
12 Months or Longer, Estimated Fair Value		0
12 Months or Longer, Gross Unrealized Holding Losses		0
Total Estimated Fair Value		10,649
Total Gross Unrealized Holding Losses		$ (231)

XML

Investments Available-for-Sale Securities in a Loss Position Narrative (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($) Rate	Dec. 31, 2017 USD ($) Rate
Debt Securities, Available-for-sale [Line Items]
Total estimated fair value	$ 322,192	$ 214,211
Total gross unrealized holding losses	6,894	2,475
Other-than- temporary impairment losses	$ 0	$ 0
Fixed maturities [Member]
Debt Securities, Available-for-sale [Line Items]
Number of available-for-sale securities in unrealized loss positions	324	195
Total estimated fair value	$ 322,200	$ 203,432
Total gross unrealized holding losses	$ 6,900	$ 2,244
Number of available-for-sale securities in unrealized loss positions, greater than one year	122	126
Available-for-sale securities, percentage of securities with ratings of A minus or better | Rate	89.50%	91.10%
Equity securities [Member]
Debt Securities, Available-for-sale [Line Items]
Number of available-for-sale securities in unrealized loss positions		13
Total estimated fair value		$ 10,779
Total gross unrealized holding losses		$ 231
Number of available-for-sale securities in unrealized loss positions, greater than one year		0

XML

Investments Contractual Maturities of Available-for-Sale Fixed Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Amortized Cost
Due in one year or less, Amortized Cost	$ 24,944
Due after one year through five years, Amortized Cost	49,867
Due after five years through ten years, Amortized Cost	39,180
Due after ten years, Amortized Cost	128,088
Total fixed maturities, Amortized Cost	472,418	$ 422,255
Estimated Fair Value
Due in one year or less, Estimated Fair Value	24,857
Due after one year through five years, Estimated Fair Value	49,735
Due after five years through ten years, Estimated Fair Value	39,529
Due after ten years, Estimated Fair Value	127,095
Total fixed maturities, Estimated Fair Value	467,922	$ 425,191
Asset-backed securities [Member]
Amortized Cost
Without single maturity date, Amortized Cost	125,030
Estimated Fair Value
Without single maturity date, Estimated Fair Value	124,048
Residential mortgage-backed securities [Member]
Amortized Cost
Without single maturity date, Amortized Cost	105,309
Estimated Fair Value
Without single maturity date, Estimated Fair Value	$ 102,658

XML

Investments Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Components of Net Investment Income [Abstract]
Taxable bonds	$ 2,239	$ 1,508	$ 4,000	$ 3,045
Tax exempt municipal bonds	1,083	818	2,168	1,612
Cash equivalents and short-term investments	217	167	477	254
Dividends on equity securities	512	185	924	295
Gross investment income	4,051	2,678	7,569	5,206
Investment expenses	(269)	(246)	(558)	(488)
Net investment income	$ 3,782	$ 2,432	$ 7,011	$ 4,718

XML

Investments Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Gain (Loss) on Securities [Line Items]
Realized gains, fixed-maturity securities	$ 189	$ 24	$ 244	$ 24
Realized losses, fixed-maturity securities	(4)	0	(4)	(32)
Net realized gains (losses), fixed-maturity securities	185	24	240	(8)
Realized gains, equity securities	0		57
Realized losses, equity securities	(11)		(11)
Net realized gains (losses), equity securities	(11)		46
Net realized investment gains	$ 174	24	$ 286	(8)
Equity securities [Member]
Gain (Loss) on Securities [Line Items]
Realized gains, available for sale		0		0
Realized losses, available for sale		0		0
Net Realized gains (losses), available for sale		$ 0		$ 0

XML

Investments Unrealized Gains (Losses) on Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Gain (Loss)	$ (1.3)	$ 2.8	$ (7.4)	$ 3.5
Available-for-sale Equity Securities, Gross Unrealized Gain		$ 0.6		$ 1.5

XML

Investments Investment Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Assets on deposit with state regulatory authorities	$ 6.9	$ 7.1
Payable for investments purchased	$ 7.7	$ 1.0

XML

Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	$ 467,922	$ 479,323
Fixed maturities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale		425,191
U.S. Treasury securities and obligations of U.S. government agencies [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	607	9,098
Obligations of states, municipalities and political subdivisions [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	155,601	164,326
Corporate and other securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	85,008	71,631
Asset-backed securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	124,048	95,360
Residential mortgage-backed securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	102,658	84,776
Equity securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale		54,132
Exchange traded funds [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale		34,380
Nonredeemable preferred stock [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale		19,752
Recurring
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	526,141
Fair value - available for sale		479,323
Recurring | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	40,041
Fair value - available for sale		43,478
Recurring | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	486,100
Fair value - available for sale		435,845
Recurring | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	0
Fair value - available for sale		0
Recurring | Fixed maturities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	467,922	425,191
Recurring | Fixed maturities [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	607	9,098
Recurring | Fixed maturities [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	467,315	416,093
Recurring | Fixed maturities [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | U.S. Treasury securities and obligations of U.S. government agencies [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	607	9,098
Recurring | U.S. Treasury securities and obligations of U.S. government agencies [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	607	9,098
Recurring | U.S. Treasury securities and obligations of U.S. government agencies [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | U.S. Treasury securities and obligations of U.S. government agencies [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Obligations of states, municipalities and political subdivisions [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	155,601	164,326
Recurring | Obligations of states, municipalities and political subdivisions [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Obligations of states, municipalities and political subdivisions [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	155,601	164,326
Recurring | Obligations of states, municipalities and political subdivisions [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Corporate and other securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	85,008	71,631
Recurring | Corporate and other securities [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Corporate and other securities [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	85,008	71,631
Recurring | Corporate and other securities [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Asset-backed securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	124,048	95,360
Recurring | Asset-backed securities [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Asset-backed securities [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	124,048	95,360
Recurring | Asset-backed securities [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Residential mortgage-backed securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	102,658	84,776
Recurring | Residential mortgage-backed securities [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Residential mortgage-backed securities [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	102,658	84,776
Recurring | Residential mortgage-backed securities [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value - available for sale	0	0
Recurring | Equity securities [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	58,219
Fair value - available for sale		54,132
Recurring | Equity securities [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	39,434
Fair value - available for sale		34,380
Recurring | Equity securities [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	18,785
Fair value - available for sale		19,752
Recurring | Equity securities [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	0
Fair value - available for sale		0
Recurring | Exchange traded funds [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	39,434
Fair value - available for sale		34,380
Recurring | Exchange traded funds [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	39,434
Fair value - available for sale		34,380
Recurring | Exchange traded funds [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	0
Fair value - available for sale		0
Recurring | Exchange traded funds [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	0
Fair value - available for sale		0
Recurring | Nonredeemable preferred stock [Member]
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	18,785
Fair value - available for sale		19,752
Recurring | Nonredeemable preferred stock [Member] | Level 1
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	0
Fair value - available for sale		0
Recurring | Nonredeemable preferred stock [Member] | Level 2
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	18,785
Fair value - available for sale		19,752
Recurring | Nonredeemable preferred stock [Member] | Level 3
Fair Value of Investments Measured on Recurring Basis [Line Items]
Fair value	$ 0
Fair value - available for sale		$ 0

XML

Fair Value Measurements Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers from Level 1 to Level 2	$ 0
Transfers from Level 2 to Level 1	0
Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value	0	$ 0
Liabilities measured at fair value	$ 0	$ 0

XML

Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	$ 12,768	$ 10,501	$ 11,775	$ 10,150
Policy acquisition costs deferred:
Direct commissions deferred	10,298	8,625	19,675	16,505
Ceding commissions deferred	(2,609)	(2,392)	(5,150)	(4,983)
Other underwriting and policy acquisition costs	694	756	1,503	1,517
Policy acquisition costs deferred	8,383	6,989	16,028	13,039
Amortization of net policy acquisition costs	(7,028)	(5,912)	(13,680)	(11,611)
Balance, end of period	$ 14,123	$ 11,578	$ 14,123	$ 11,578

XML

Underwriting, Acquisition and Insurance Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Underwriting, Acquisition and Insurance Expenses [Abstract]
Gross commissions	$ 8,756	$ 7,544	$ 17,135	$ 14,693
Ceding commissions	(2,464)	(2,466)	(4,908)	(4,812)
Other operating expenses	6,227	5,414	12,690	11,905
Underwriting, acquisition, and insurance expenses	12,519	10,492	24,917	21,786
Salaries, bonuses and employee benefits	$ 5,300	$ 4,500	$ 10,300	$ 9,500

XML

Stock-based Compensation Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 0.6	$ 0.3
2016 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for issuance	2,073,832

XML

Stock-based Compensation Narrative - Restricted Stock Awards (Details) - Restricted stock [Member] $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense	$ 4.7
Compensation cost not yet recognized, period	3 years 9 months
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years

XML

Stock-based Compensation Restrictive Stock Awards (Details) - Restricted stock [Member]	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Nonvested Restricted Stock, Weighted Average Grant Date Fair Value [Abstract]
Nonvested outstanding at the beginning of the period | $ / shares	$ 0.00
Granted | $ / shares	52.99
Vested | $ / shares	0.00
Forfeited | $ / shares	0.00
Nonvested outstanding at the end of the period | $ / shares	$ 52.99
Nonvested Restricted Stock, Number of Shares [Roll Forward]
Nonvested outstanding at the beginning of the period, shares | shares	0
Granted, shares | shares	94,270
Vested, shares | shares	0
Forfeited, shares | shares	0
Nonvested outstanding at the end of the period, shares | shares	94,270

XML

Stock-based Compensation Narrative - Stock Options (Details) - USD ($) $ / shares in Units, $ in Millions		6 Months Ended
	Jul. 27, 2016	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average exercise price, granted		$ 0.00
Exercised, shares		39,027	0
Stock option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised		$ 1.4
Weighted average exercise price, granted	$ 16.00
Weighted average grant date fair value	$ 2.71
Contractual term	10 years
Vesting period	4 years
Compensation not yet recognized		$ 1.3
Compensation cost not yet recognized, period		2 years 1 month

XML

Stock-based Compensation Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands		6 Months Ended
	Jul. 27, 2016	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding beginning of period, shares		930,440
Granted, shares		0
Forfeited, shares		(8,985)
Exercised, shares		(39,027)	0
Outstanding end of period, shares		882,428
Exercisable, shares		179,803
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding beginning of period		$ 16.00
Granted		0.00
Forfeited		16.00
Exercised		16.00
Exercisable		16.00
Outstanding end of period		$ 16.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding, weighted average remaining contractual term		8 years 1 month
Exercisable, weighted average remaining contractual term		8 years 1 month
Outstanding, aggregate intrinsic value		$ 34,291
Exercisable, aggregate intrinsic value		$ 6,987
Stock option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted, shares	1,036,916
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free rate of return	1.26%
Dividend yield	1.25%
Expected share price volatility	18.50%
Expected life in years	6 years 3 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Granted	$ 16.00

XML

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share, [Line Items]
Net income	$ 10,112	$ 8,495	$ 17,399	$ 14,776
Earnings Per Share, Basic [Abstract]
Earnings per share - basic	$ 0.48	$ 0.41	$ 0.83	$ 0.70
Earnings Per Share, Diluted [Abstract]
Earnings per share - diluted	$ 0.47	$ 0.40	$ 0.80	$ 0.69
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average shares outstanding - basic	21,070	20,969	21,058	20,969
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average shares outstanding - diluted	21,666	21,457	21,648	21,425
Stock option [Member]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Dilutive effect of shares issued under stock compensation arrangements	593	488	588	456
Restricted stock [Member]
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Dilutive effect of shares issued under stock compensation arrangements	3	0	2	0

XML

Earnings Per Share Narrative (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restricted stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities	88,000	0	88,000	0

XML

Income taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory income tax rate			21.00%		35.00%
Transition adjustment for loss discounting	$ 3.5		$ 3.5
Effective tax rate	18.90%	33.40%	18.20%	33.00%

XML

Reserves for Unpaid Losses and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Net reserves for unpaid losses and loss adjustment expenses, beginning of year	$ 267,493	$ 194,602
Commutations of MLQS	0	27,929
Adjusted net reserves for losses and loss adjustment expenses, beginning of year	267,493	222,531
Incurred losses and loss adjustment expenses:
Current year	62,389	52,902
Prior years	(3,523)	(8,936)
Total net losses and loss adjustment expenses incurred	58,866	43,966
Payments:
Current year	1,858	2,185
Prior years	33,309	19,508
Total payments	35,167	21,693
Net reserves for unpaid losses and loss adjustment expenses, end of period	291,192	244,804
Reinsurance recoverable on unpaid losses	53,373	39,624
Gross reserves for unpaid losses and loss adjustment expenses, end of period	$ 344,565	$ 284,428

XML

Reserves for Unpaid Losses and Loss Adjustment Expenses Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves	$ (3,523)	$ (8,936)
Accident Year 2017 [Member]
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves	(2,500)
Accident Year 2016 [Member]
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves	(3,000)	(5,800)
Accident Year 2015 [Member]
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves	(800)	(3,700)
Accident Year 2013 [Member]
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves		$ 1,100
Accident Years 2011 to 2014 [Member]
Claims Development [Line Items]
Adverse (favorable) development on prior year loss reserves	$ 2,800

XML

Reserves for Unpaid Losses and Loss Adjustment Expenses Multi-line Quota Share Reinsurance (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Reinsurance Retention Policy [Line Items]
Commutations of MLQS	$ 0	$ 27,929
Multi Line Quota Share Treaty - 2015 [Member]
Reinsurance Retention Policy [Line Items]
Commutations of MLQS		$ 27,900

XML

Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Premiums Written, Net [Abstract]
Direct written premiums	$ 69,981	$ 57,753	$ 133,828	$ 110,615
Assumed written premiums	0	0	0	0
Ceded written premiums	(9,090)	(7,980)	(17,846)	(16,680)
Net written premiums	60,891	49,773	115,982	93,935
Premiums Earned, Net [Abstract]
Direct earned premiums	59,603	51,304	116,196	99,766
Assumed earned premiums	0	0	0	0
Ceded earned premiums	(8,710)	(8,252)	(17,242)	(16,281)
Net earned premiums	50,893	43,052	98,954	83,485
Ceded incurred losses and loss adjustment expenses	5,000	$ (600)	7,900	$ 1,800
Reinsurance recoverables on paid losses	1,000		1,000		$ 1,400
Reinsurance recoverables on unpaid losses	$ 53,400		$ 53,400		$ 48,200

XML

Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) arising during the period, before income taxes	$ (1,101)	$ 3,369	$ (7,193)	$ 4,987
Income taxes	232	(1,179)	1,511	(1,745)
Unrealized gains (losses) arising during the period, net of income tax	(869)	2,190	(5,682)	3,242
Less reclassification adjustment [Abstract]
Net realized investment gains (losses)	185	24	240	(8)
Income taxes	(38)	(8)	(50)	3
Reclassification adjustment included in net income	147	16	190	(5)
Other comprehensive income (loss)	(1,016)	2,174	(5,872)	3,247
Fixed maturities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) arising during the period, before income taxes	(1,101)	2,792	(7,193)	3,489
Equity securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses) arising during the period, before income taxes	$ 0	$ 577	$ 0	$ 1,498