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, 2017

or

☐ Transitional Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from              to

Commission file number 0-15886

The Navigators Group, Inc.

(Exact name of registrant as specified in its charter)

Delaware	13-3138397
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
400 Atlantic Street, Stamford, Connecticut	06901
(Address of principal executive offices)	(Zip Code)

(203) 905-6090

(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report.)

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 (§232.405 of this chapter) 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, a smaller reporting company, or an emerging growth company. See the definition of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check One):

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	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 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes☐    No  ☒

The number of common shares outstanding as of July 28, 2017 was 29,498,176.

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

INDEX

Contents

PART I. FINANCIAL INFORMATION	3
Item 1.      Financial Statements	3
Consolidated Balance Sheets – June 30, 2017 (Unaudited) and December 31, 2016	3
Consolidated Statements of Income (Unaudited) – Three and Six Months Ended June 30, 2017 and 2016	4
Consolidated Statements of Comprehensive Income (Unaudited) – Three and Six Months Ended June 30, 2017 and 2016	5
Consolidated Statement of Stockholders’ Equity (Unaudited) –Six Months Ended June 30, 2017	6
Consolidated Statements of Cash Flows (Unaudited) – Six Months Ended June 30, 2017 and 2016	7
Notes to Interim Consolidated Financial Statements (Unaudited)	8
Item 2.      Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.      Quantitative and Qualitative Disclosures about Market Risk	50
Item 4.      Controls and Procedures	50
PART II. OTHER INFORMATION	51
Item 1.      Legal Proceedings	51
Item 1A.   Risk Factors	51
Item 2.      Unregistered Sales of Equity Securities and Use of Proceeds	51
Item 3.      Defaults Upon Senior Securities	51
Item 4.      Mine Safety Disclosures	51
Item 5.      Other Information	51
Item 6.      Exhibits	52
Signatures	53
Index to Exhibits	54

2

PART I. FINANCIAL INFORMATION

Item 1.  Financial Statements

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	June 30,			December 31,
	2017			2016
amounts in thousands, except per share amounts	(Unaudited)
ASSETS
Investments:
Fixed Maturities, available-for-sale, at fair value (amortized cost: 2017:  $2,715,910;    2016: $2,628,225)	$	2,750,404		$	2,635,882
Equity Securities, available-for-sale, at fair value (cost: 2017: $312,511; 2016: $327,911)		352,062			349,142
Other Invested Assets		1,781			1,960
Short-Term Investments, at fair value (amortized cost: 2017: $130,598; 2016: $143,451)		130,881			143,539
Total Investments	$	3,235,128		$	3,130,523
Cash		69,222			64,643
Premiums Receivable		423,767			306,686
Prepaid Reinsurance Premiums		238,359			213,377
Reinsurance Recoverable on Paid Losses		67,567			82,582
Reinsurance Recoverable on Unpaid Losses and Loss Adjustment Expenses		782,864			779,276
Deferred Policy Acquisition Costs		132,796			119,660
Accrued Investment Income		18,196			17,315
Goodwill and Other Intangible Assets		6,499			6,451
Current Income Tax Receivable, Net		16,113			20,556
Deferred Income Tax, Net		15,430			20,938
Other Assets		57,953			52,030
Total Assets	$	5,063,894		$	4,814,037
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities:
Reserves for Losses and Loss Adjustment Expenses	$	2,346,327		$	2,289,727
Unearned Premiums		1,002,855			887,344
Reinsurance Balances Payable		125,357			108,980
Senior Notes		263,806			263,728
Payable for Investments Purchased		12,000			—
Accounts Payable and Other Liabilities		69,381			86,070
Total Liabilities	$	3,819,726		$	3,635,849
Stockholders' Equity: (1)
Preferred Stock ($.10 par value per share, authorized 1,000 shares, none issued)	$	—		$	—
Common Stock ($.10 par value per share, authorized 50,000 shares, issued    36,498 shares for 2017 and 36,147 shares for 2016)		3,647			3,612
Additional Paid-In Capital		371,410			373,983
Treasury Stock, at cost (7,023 shares for 2017 and 2016)		(155,801	)		(155,801	)
Retained Earnings		986,039			947,519
Accumulated Other Comprehensive Income		38,873			8,875
Total Stockholders' Equity	$	1,244,168		$	1,178,188
Total Liabilities and Stockholders' Equity	$	5,063,894		$	4,814,037

(1) - We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

See accompanying Notes to Interim Consolidated Financial Statements.

3

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands, except  per share amounts	2017			2016			2017			2016
Gross Written Premiums	$	452,179		$	412,565		$	902,484		$	826,442
Revenues:
Net Written Premiums		333,282			306,535			670,445			626,355
Change in Unearned Premiums		(39,447	)		(38,543	)		(90,479	)		(94,005	)
Net Earned Premiums	$	293,835		$	267,992		$	579,966		$	532,350
Net Investment Income		22,265			19,875			43,713			39,469
Total Other-Than-Temporary Impairment Losses		29			(162	)		(1,048	)		(271	)
Portion of Loss Recognized in Other Comprehensive    Income (Before Tax)		(29	)		12			(45	)		121
Net Other-Than-Temporary Impairment Losses Recognized    in Earnings		—			(150	)		(1,093	)		(150	)
Net Realized Gains		1,694			1,960			2,743			3,557
Other Income (Loss)		(411	)		4,430			657			6,979
Total Revenues	$	317,383		$	294,107		$	625,986		$	582,205
Expenses:
Net Losses and Loss Adjustment Expenses	$	177,110		$	167,206		$	346,710		$	320,162
Commission Expenses		48,173			40,726			96,017			78,280
Other Operating Expenses		60,766			59,074			119,304			119,883
Interest Expense		3,861			3,858			7,722			7,716
Total Expenses	$	289,910		$	270,864		$	569,753		$	526,041
Income Before Income Taxes	$	27,473		$	23,243		$	56,233		$	56,164
Income Tax Expense		6,971			7,053			14,621			17,042
Net Income	$	20,502		$	16,190		$	41,612		$	39,122
Net Income per Common Share: (1)
Basic	$	0.70		$	0.56		$	1.42		$	1.35
Diluted	$	0.69		$	0.54		$	1.39		$	1.31
Average Common Shares Outstanding: (1)
Basic		29,470			29,074			29,377			29,029
Diluted		29,918			29,953			29,897			29,884
Cash Dividends Declared per Common Share	$	0.06		$	0.045		$	0.105		$	0.045

(1) - We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

See accompanying Notes to Interim Consolidated Financial Statements.

4

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

	Three Months Ended June 30,
amounts in thousands	2017			2016
Net Income	$	20,502		$	16,190
Other Comprehensive Income (Loss):
Change in Net Unrealized Gains on Investments:
Unrealized Gains on Investments arising during the period, net    of Deferred Tax of $(7,907) and $(12,788) in 2017 and 2016, respectively		14,684			23,751
Reclassification adjustment for Net Realized Gains included    in Net Income net of Deferred Tax of $157 and $178 in 2017 and    2016, respectively		(291	)		(331	)
Change in Net Unrealized Gains on Investments	$	14,393		$	23,420
Change in Other-Than-Temporary Impairments
Non Credit Other-Than-Temporary Impairments arising during the period,    net of Deferred Tax of $(10) and $4 in 2017 and 2016, respectively		19			(8	)
Reclassification Adjustment for Other-Than-Temporary Impairment Credit    Losses Recognized in Net Income net of Deferred Tax of $0 and $(603) in    2017 and 2016, respectively		—			1,119
Change in Other-Than-Temporary Impairments	$	19		$	1,111
Change in Foreign Currency Translation Gains (Losses), net of Deferred    Tax of $(423) and $2,963 in 2017 and 2016, respectively		785			(5,493	)
Other Comprehensive Income	$	15,197		$	19,038
Comprehensive Income	$	35,699		$	35,228

	Six Months Ended June 30,
amounts in thousands	2017		2016
Net Income	$	41,612	$	39,122
Other Comprehensive Income (Loss):
Change in Net Unrealized Gains on Investments:
Unrealized Gains on Investments arising during the period, net    of Deferred Tax of $(15,433) and $(24,239) in 2017 and 2016, respectively		28,661		45,018
Reclassification adjustment for Net Realized Losses included    in Net Income net of Deferred Tax of $(215) and $(760) in 2017 and    2016, respectively		399		1,411
Change in Net Unrealized Gains on Investments	$	29,060	$	46,429
Change in Other-Than-Temporary Impairments
Non Credit Other-Than-Temporary Impairments arising during the period,    net of Deferred Tax of $(16) and $42 in 2017 and 2016, respectively		29		(79	)
Reclassification Adjustment for Other-Than-Temporary Impairment Credit    Losses Recognized in Net Income net of Deferred Tax of $(209) and $(709) in    2017 and 2016, respectively		389		1,316
Change in Other-Than-Temporary Impairments	$	418	$	1,237
Change in Foreign Currency Translation Gains (Losses), net of Deferred    Tax of $(280) and $3,146 in 2017 and 2016, respectively		520		(5,840	)
Other Comprehensive Income	$	29,998	$	41,826
Comprehensive Income	$	71,610	$	80,948

See accompanying Notes to Interim Consolidated Financial Statements.

5

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited)

					Additional											Accumulated Other		Total
	Common Stock				Paid-in			Treasury Stock					Retained			Comprehensive		Stockholders'
amounts in thousands	Shares(1)		Amount		Capital			Shares(1)		Amount			Earnings			Income (Loss)		Equity
Balance, December 31, 2016		36,147	$	3,612	$	373,983			7,023	$	(155,801	)	$	947,519		$	8,875	$	1,178,188
Net Income		—		—		—			—		—			41,612			—		41,612
Dividends Declared		—		—		—			—		—			(3,092	)		—		(3,092	)
Changes in Comprehensive Income:
Change in Net Unrealized Gain on    Investments		—		—		—			—		—			—			29,060		29,060
Change in Net Non-Credit Other-Than-    Temporary Impairment Losses		—		—		—			—		—			—			418		418
Change in Foreign Currency Translation    Gain		—		—		—			—		—			—			520		520
Total Comprehensive Income		—		—		—			—		—			—			29,998		29,998
Shares Issued(2)		351		35		(11,719	)		—		—			—			—		(11,684	)
Share-Based Compensation		—		—		9,146			—		—			—			—		9,146
Balance, June 30, 2017		36,498	$	3,647	$	371,410			7,023	$	(155,801	)	$	986,039		$	38,873	$	1,244,168

(1) - We completed a two-for-one stock split on January 20, 2017. All share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

(2) - Includes shares issued under the Second Amended and Restated 2005 Stock Incentive Plan to Directors and the Employee Stock Purchase Plan.

See accompanying Notes to Interim Consolidated Financial Statements.

6

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

	Six Months Ended June 30,
amounts in thousands	2017			2016
Operating Activities:
Net Income	$	41,612		$	39,122
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation & Amortization		2,411			2,816
Share-Based Compensation		9,146			9,409
Deferred Income Taxes		(10,793	)		(3,076	)
Net Realized Gains		(2,743	)		(3,557	)
Net Other-Than-Temporary Impairments Recognized in Earnings		1,093			150
Non-Cash Foreign Exchange Gains		(1,137	)		(6,983	)
Changes in Assets And Liabilities:
Reinsurance Recoverable on Paid and Unpaid Losses and Loss Adjustment    Expenses		13,107			(19,743	)
Reserves for Losses and Loss Adjustment Expenses		52,063			77,812
Prepaid Reinsurance Premiums		(24,982	)		10,174
Unearned Premiums		115,511			83,831
Premiums Receivable		(116,689	)		(92,004	)
Deferred Policy Acquisition Costs		(13,137	)		(21,411	)
Accrued Investment Income		(881	)		(176	)
Reinsurance Balances Payable		16,145			22,497
Current Income Tax Payable, Net		7,175			3,748
Other		(14,997	)		15,885
Net Cash Provided by Operating Activities	$	72,904		$	118,494
Investing Activities:
Fixed Maturities
Redemptions and Maturities	$	165,690		$	127,952
Sales		95,240			225,363
Purchases		(356,970	)		(515,752	)
Equity Securities
Sales		39,487			28,189
Purchases		(21,022	)		(37,898	)
Change in Payable for Securities		12,028			47,062
Net Change in Short-Term Investments		12,649			74,399
Purchase of Property and Equipment		(2,098	)		(3,422	)
Net Cash Used in Investing Activities	$	(54,996	)	$	(54,107	)
Financing Activities:
Proceeds of Stock Issued From Employee Stock Purchase Plan	$	1,147		$	867
Payment of Employee Tax Withholding on Stock Compensation		(13,189	)		(4,914	)
Dividends Paid		(3,092	)		—
Net Cash Used in Financing Activities	$	(15,134	)	$	(4,047	)
Effect of Exchange Rate on Cash	$	1,805		$	(8,373	)
Change in Cash	$	4,579		$	51,967
Cash at Beginning of Year		64,643			69,901
Cash at End of Period	$	69,222		$	121,868
Supplemental Information:
Income Taxes Paid, Net	$	21,445		$	14,950
Interest Paid	$	7,619		$	7,619
Issuance of Stock to Directors	$	578		$	633
Dividends Declared and Unpaid	$	—		$	1,309

See accompanying Notes to Interim Consolidated Financial Statements.

7

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

Notes to Interim Consolidated Financial Statements (Unaudited)

NOTE 1.  ORGANIZATION & SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Unless the context requires otherwise, the terms “we,” “us,” “our” or “our Company” are used to mean The Navigators Group, Inc., a Delaware holding company established in 1982, and its subsidiaries. The term “Parent Company” is used to mean The Navigators Group, Inc. without its subsidiaries.

Organization

We are an international insurance company with a long-standing area of specialization in Marine insurance. We also offer Property and Casualty (“P&C”) insurance, primarily general liability coverage and umbrella & excess liability coverage to commercial enterprises through our Primary and Excess Casualty divisions. We have also developed niches in Professional Liability insurance, through our Directors & Officers (“D&O”) and Errors & Omissions (“E&O”) divisions, as well as assumed reinsurance products.

We operate through various wholly-owned insurance and service companies. Our subsidiaries domiciled in the United States (“U.S.”) include two insurance companies, Navigators Insurance Company (“NIC”) and Navigators Specialty Insurance Company (“NSIC”), as well as our U.S. underwriting agency, Navigators Management Company (“NMC”). NIC includes a branch in the United Kingdom (“U.K”). We also have operations domiciled in the U.K., Hong Kong and Europe. Navigators International Insurance Company Ltd. (“NIIC”), Navigators Management (U.K.) Ltd. (“NMUK”) and Navigators Underwriting Ltd. (“NUL”) are domiciled in the U.K. and NUL includes European branches. Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s of London (“Lloyd’s”) underwriting agency, manages and provides the capital, through Navigators Corporate Underwriters Ltd. (“NCUL”), for our Lloyd’s Syndicate 1221 (the “Syndicate”), and is also domiciled in the U.K. We control 100% of the Syndicate’s stamp capacity.

Effective January 1, 2017, we sold our underwriting agency operations in Sweden and Denmark. The transaction represented a 100% disposition of our Sweden and Denmark corporations, NUAL AB and Navigators A/S, respectively. This transaction did not have a material impact on our financial statements.

Basis of Presentation

The Consolidated Balance Sheet at June 30, 2017 and the Consolidated Statements of Income, Comprehensive Income, Stockholders’ Equity and Cash Flows for the periods ended June 30, 2017 and 2016 are unaudited. The Balance Sheet at December 31, 2016 is derived from our audited Financial Statements. The accompanying Interim Consolidated Financial Statements reflect all adjustments, which, in the opinion of management, are necessary to fairly present the results of our Company for the interim periods presented on the basis of U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the U.S. Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. All significant intercompany transactions and balances have been eliminated in consolidation. The preparation of these Financial Statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the Financial Statements and the reported revenues and expenses during the reporting periods. The results of operations for any interim period are not necessarily indicative of results for the full year. The Interim Consolidated Financial Statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2016. Certain amounts for the prior period have been reclassified to conform with the current period presentation.

Income Taxes

The interim income tax provision has been computed based on our estimated annual Effective Tax Rate, which represents our best estimate on a year to date basis for the interim period. As a result, the tax provision for a given quarter equals the difference between the provision recorded cumulatively year to date less the amount recorded cumulatively as of the end of the prior interim period. Our Effective Tax Rate for the quarter and year to date differs from the federal tax rate of 35% primarily due to an excess tax benefit related to the vesting of stock compensation at fair market value, tax-exempt investment income and dividends received deduction.

Starting in the first quarter of 2017, excess tax benefits related to the vesting of stock compensation were recognized as a reduction to Income Tax Expense rather than as an increase to Additional Paid-In Capital as a result of the adoption of the Accounting Standards Update (“ASU”) 2016-09 (see section New Accounting Standards Adopted in 2017 of this footnote for further information on the adoption of this standard).

8

Significant Accounting Policies

There were no changes in our significant accounting policies subsequent to our Annual Report on Form 10-K for the year ended December 31, 2016.

New Accounting Standards Adopted in 2017

Share-Based Compensation Accounting

Effective January 1, 2017, our Company adopted ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” issued by the Financial Accounting Standards Board (the “FASB”). This guidance requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, eliminates the requirement that excess tax benefits be realized before companies can recognize them, requires the presentation of excess tax benefits as an operating activity on the statement of cash flows, allows employers to increase the amounts withheld to cover income taxes on share-based compensation awards without requiring liability classification, requires the presentation of employee taxes paid as a financing activity on the statement of cash flows, and requires companies to elect whether they will account for award forfeitures by recognizing forfeitures only as they occur or by estimating the number of awards expected to be forfeited.

The requirement to recognize all income tax effects of awards in the income statement when the awards vest or are settled was adopted on a prospective basis. Previously, these amounts were recorded in Additional Paid-In Capital. This change also prospectively impacts the calculation of potential common shares used to determine Diluted Net Income per Common Share under the treasury stock method. The new standard requires that assumed proceeds under the treasury stock method be modified to exclude the amount of excess tax benefits that previously would have been recognized in Additional Paid-In Capital.

We elected to account for forfeitures of share-based payment awards by recognizing forfeitures of awards as they occur, and upon adoption of this guidance, the payment of employee taxes was retrospectively adjusted on the Consolidated Statements of Cash Flows to be classified as a financing activity. All other changes in the ASU did not result in cumulative-effect or retrospective adjustments. The adoption of this guidance did not materially impact our results of operations, financial condition or liquidity.

Transition to Equity Method of Accounting

Effective January 1, 2017, our Company adopted the ASU 2016-07, “Simplifying the Transition to the Equity Method of Accounting” issued by the FASB. This guidance eliminates the requirement to retrospectively apply equity method accounting when an investment that had been accounted for by another method initially qualifies for the equity method. Our Company did not have any investments transitioning to the equity method of accounting during the six months ended June 30, 2017. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Share-Based Compensation Modification Accounting

During the second quarter of 2017, our Company early adopted the ASU 2017-09, “Scope of Modification Accounting” issued by the FASB. This guidance clarifies when changes to the terms or conditions of a share-based award must be accounted for as modifications. Under the new guidance, modification accounting is required if the value, vesting conditions or classification of the award changes. This guidance will be applied prospectively to awards modified on or after the adoption date. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Recently Issued Accounting Standards Not Yet Adopted

Definition of a Business

In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business” with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This guidance is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years with early adoption permitted. This guidance will be applied prospectively to any transactions occurring within the period of adoption.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment” that eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of the current goodwill impairment test) to measure a goodwill impairment charge. Instead, an impairment charge will be based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on Step 1 of the current goodwill impairment test). This guidance is effective for annual and interim impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. This guidance will be adopted on a prospective basis.

9

Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, “Premium Amortization on Purchased Callable Debt Securities” that shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. This guidance is effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years with early adoption permitted. This guidance will be adopted using a modified retrospective transition approach. The adoption of this guidance is not expected to materially impact our results of operations, financial condition or liquidity.

NOTE 2.  SEGMENT INFORMATION

We report our results of operations consistent with the manner in which our Chief Operating Decision Maker reviews the business to assess performance through our reporting segments: U.S. Insurance, International Insurance (“Int’l Insurance”), Global Reinsurance (“GlobalRe”) and Corporate. 

We classify our business into three underwriting segments: U.S. Insurance, Int’l Insurance and GlobalRe.  Both the U.S. Insurance and Int’l Insurance reporting segments are each comprised of three operating segments: Marine, P&C and Professional Liability.

We evaluate the performance of each of the underwriting segments based on underwriting results.  Underwriting results are measured based on Underwriting Profit or Loss and the related Combined Ratio, which are both measures of underwriting profitability.   Underwriting Profit (Loss) is calculated from Net Earned Premiums less the sum of Net Losses and Loss Adjustment Expenses (“LAE”), Commission Expenses, Other Operating Expenses and Other Underwriting Income (Expense).  The Combined Ratio is derived by dividing the sum of Net Losses and LAE, Commission Expenses, Other Operating Expenses and Other Underwriting Income (Expense) by Net Earned Premiums.  A Combined Ratio of less than 100% indicates an Underwriting Profit and greater than 100% indicates an Underwriting Loss.  Our underwriting performance is evaluated separately from the rest of our operations.  

The performance of our investment portfolios, our liquidity and capital resource needs, our foreign currency exposure and our tax planning strategies are evaluated on a consolidated basis within our Corporate segment. We do not allocate our assets by underwriting segment as we evaluate the underwriting results of these segments separately from the results of our investments portfolio.

Financial data by segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	167,087		$	82,100		$	44,648		$	—		$	293,835
Net Losses and LAE		(105,270	)		(44,095	)		(27,745	)		—			(177,110	)
Commission Expenses		(20,460	)		(19,001	)		(8,970	)		258			(48,173	)
Other Operating Expenses		(33,140	)		(22,506	)		(5,120	)		—			(60,766	)
Other Underwriting Income (Expense)		100			—			169			(258	)		11
Underwriting Profit (Loss)	$	8,317		$	(3,502	)	$	2,982		$	—		$	7,797
Net Investment Income											22,265			22,265
Net Realized Gains											1,694			1,694
Interest Expense											(3,861	)		(3,861	)
Other Loss											(422	)		(422	)
Income (Loss) Before Income Taxes	$	8,317		$	(3,502	)	$	2,982		$	19,676		$	27,473
Income Tax Expense											(6,971	)		(6,971	)
Net Income													$	20,502
Losses and LAE Ratio		63.0	%		53.7	%		62.1	%					60.3	%
Commission Expense Ratio		12.2	%		23.1	%		20.1	%					16.4	%
Other Operating Expense Ratio (2)		19.8	%		27.5	%		11.1	%					20.6	%
Combined Ratio		95.0	%		104.3	%		93.3	%					97.3	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

10

	Three Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	152,384		$	77,833		$	37,775		$	—		$	267,992
Net Losses and LAE		(93,428	)		(48,066	)		(25,712	)		—			(167,206	)
Commission Expenses		(16,894	)		(16,821	)		(7,492	)		481			(40,726	)
Other Operating Expenses		(31,570	)		(23,043	)		(4,461	)		—			(59,074	)
Other Underwriting Income (Expense)		342			—			203			(481	)		64
Underwriting Profit (Loss)	$	10,834		$	(10,097	)	$	313		$	—		$	1,050
Net Investment Income											19,875			19,875
Net Realized Gains											1,810			1,810
Interest Expense											(3,858	)		(3,858	)
Other Income											4,366			4,366
Income (Loss) Before Income Taxes	$	10,834		$	(10,097	)	$	313		$	22,193		$	23,243
Income Tax Expense											(7,053	)		(7,053	)
Net Income													$	16,190
Losses and LAE Ratio		61.3	%		61.8	%		68.1	%					62.4	%
Commission Expense Ratio		11.1	%		21.6	%		19.8	%					15.2	%
Other Operating Expense Ratio (2)		20.5	%		29.6	%		11.3	%					22.0	%
Combined Ratio		92.9	%		113.0	%		99.2	%					99.6	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	331,091		$	166,186		$	82,689		$	—		$	579,966
Net Losses and LAE		(204,096	)		(94,800	)		(47,814	)		—			(346,710	)
Commission Expenses		(40,844	)		(38,234	)		(17,462	)		523			(96,017	)
Other Operating Expenses		(66,612	)		(42,299	)		(10,393	)		—			(119,304	)
Other Underwriting Income (Expense)		210			—			345			(523	)		32
Underwriting Profit (Loss)	$	19,749		$	(9,147	)	$	7,365		$	—		$	17,967
Net Investment Income											43,713			43,713
Net Realized Gains											1,650			1,650
Interest Expense											(7,722	)		(7,722	)
Other Income											625			625
Income (Loss) Before Income Taxes	$	19,749		$	(9,147	)	$	7,365		$	38,266		$	56,233
Income Tax Expense											(14,621	)		(14,621	)
Net Income													$	41,612
Losses and LAE Ratio		61.6	%		57.0	%		57.8	%					59.8	%
Commission Expense Ratio		12.3	%		23.0	%		21.1	%					16.6	%
Other Operating Expense Ratio (2)		20.1	%		25.5	%		12.2	%					20.5	%
Combined Ratio		94.0	%		105.5	%		91.1	%					96.9	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

11

	Six Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate(1)			Total
Net Earned Premiums	$	300,724		$	155,841		$	75,785		$	—		$	532,350
Net Losses and LAE		(184,940	)		(88,476	)		(46,746	)		—			(320,162	)
Commission Expenses		(31,749	)		(32,176	)		(15,237	)		882			(78,280	)
Other Operating Expenses		(65,331	)		(44,814	)		(9,738	)		—			(119,883	)
Other Underwriting Income (Expense)		703			—			252			(882	)		73
Underwriting Profit (Loss)	$	19,407		$	(9,625	)	$	4,316		$	—		$	14,098
Net Investment Income											39,469			39,469
Net Realized Gains											3,407			3,407
Interest Expense											(7,716	)		(7,716	)
Other Income											6,906			6,906
Income (Loss) Before Income Taxes	$	19,407		$	(9,625	)	$	4,316		$	42,066		$	56,164
Income Tax Expense											(17,042	)		(17,042	)
Net Income													$	39,122
Losses and LAE Ratio		61.5	%		56.8	%		61.7	%					60.1	%
Commission Expense Ratio		10.6	%		20.6	%		20.1	%					14.7	%
Other Operating Expense Ratio (2)		21.4	%		28.8	%		12.5	%					22.6	%
Combined Ratio		93.5	%		106.2	%		94.3	%					97.4	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

Revenue by operating segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017									Three Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			Net Written Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	41,687	$	(19,451	)	$	22,236	$	21,812	$	46,187	$	(18,540	)	$	27,647	$	24,921		(9.7	%)		4.9	%		(19.6	%)		(12.5	%)
P&C		187,492		(51,147	)		136,345		121,226		168,654		(36,768	)		131,886		110,212		11.2	%		39.1	%		3.4	%		10.0	%
ProfessionalLiability		28,007		(3,259	)		24,748		24,049		29,083		(7,310	)		21,773		17,251		(3.7	%)		(55.4	%)		13.7	%		39.4	%
Total	$	257,186	$	(73,857	)	$	183,329	$	167,087	$	243,924	$	(62,618	)	$	181,306	$	152,384		5.4	%		17.9	%		1.1	%		9.6	%
Int'l Insurance
Marine	$	49,597	$	(12,536	)	$	37,061	$	39,525	$	41,147	$	(9,554	)	$	31,593	$	36,096		20.5	%		31.2	%		17.3	%		9.5	%
P&C		46,663		(20,362	)		26,301		23,337		63,002		(24,465	)		38,537		23,815		(25.9	%)		(16.8	%)		(31.8	%)		(2.0	%)
Professional Liability		34,933		(10,911	)		24,022		19,238		31,591		(7,891	)		23,700		17,922		10.6	%		38.3	%		1.4	%		7.3	%
Total	$	131,193	$	(43,809	)	$	87,384	$	82,100	$	135,740	$	(41,910	)	$	93,830	$	77,833		(3.3	%)		4.5	%		(6.9	%)		5.5	%
GlobalRe	$	63,800	$	(1,231	)	$	62,569	$	44,648	$	32,901	$	(1,502	)	$	31,399	$	37,775		93.9	%		(18.1	%)		99.3	%		18.2	%
Total	$	452,179	$	(118,897	)	$	333,282	$	293,835	$	412,565	$	(106,030	)	$	306,535	$	267,992		9.6	%		12.1	%		8.7	%		9.6	%

	Six Months Ended June 30, 2017									Six Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	82,637	$	(36,971	)	$	45,666	$	44,506	$	89,350	$	(36,187	)	$	53,163	$	48,171		(7.5	%)		2.2	%		(14.1	%)		(7.6	%)
P&C		358,126		(89,345	)		268,781		240,349		309,932		(67,275	)		242,657		219,371		15.5	%		32.8	%		10.8	%		9.6	%
ProfessionalLiability		54,028		(9,028	)		45,000		46,236		55,289		(13,653	)		41,636		33,182		(2.3	%)		(33.9	%)		8.1	%		39.3	%
Total	$	494,791	$	(135,344	)	$	359,447	$	331,091	$	454,571	$	(117,115	)	$	337,456	$	300,724		8.8	%		15.6	%		6.5	%		10.1	%
Int'l Insurance
Marine	$	118,430	$	(23,462	)	$	94,968	$	77,020	$	113,095	$	(20,643	)	$	92,452	$	74,952		4.7	%		13.7	%		2.7	%		2.8	%
P&C		87,031		(50,008	)		37,023		45,517		107,048		(41,694	)		65,354		45,024		(18.7	%)		19.9	%		(43.4	%)		1.1	%
ProfessionalLiability		67,592		(16,932	)		50,660		43,649		59,740		(14,544	)		45,196		35,865		13.1	%		16.4	%		12.1	%		21.7	%
Total	$	273,053	$	(90,402	)	$	182,651	$	166,186	$	279,883	$	(76,881	)	$	203,002	$	155,841		(2.4	%)		17.6	%		(10.0	%)		6.6	%
GlobalRe	$	134,640	$	(6,293	)	$	128,347	$	82,689	$	91,988	$	(6,091	)	$	85,897	$	75,785		46.4	%		3.3	%		49.4	%		9.1	%
Total	$	902,484	$	(232,039	)	$	670,445	$	579,966	$	826,442	$	(200,087	)	$	626,355	$	532,350		9.2	%		16.0	%		7.0	%		8.9	%

12

NOTE 3.  INVESTMENTS

The following tables set forth our Company’s available-for-sale investments as of June 30, 2017 and December 31, 2016 and include Other-Than-Temporary-Impairment (“OTTI”) securities recognized within Accumulated Other Comprehensive Income (“AOCI”):

	June 30, 2017
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	264,511	$	2,888	$	(2,660	)	$	264,283
States, Municipalities and Political Subdivisions		655,064		19,306		(2,004	)		637,762
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		455,133		3,849		(5,389	)		456,673
Residential Mortgage Obligations		18,037		506		(25	)		17,556
Asset-Backed Securities		315,945		1,915		(478	)		314,508
Commercial Mortgage-Backed Securities		145,573		2,883		(1,432	)		144,122
Subtotal	$	934,688	$	9,153	$	(7,324	)	$	932,859
Corporate Exposures		896,141		17,490		(2,355	)		881,006
Total Fixed Maturities	$	2,750,404	$	48,837	$	(14,343	)	$	2,715,910
Equity Securities:
Common Stocks	$	172,456	$	30,985	$	(1,023	)	$	142,494
Preferred Stocks		179,606		10,088		(499	)		170,017
Total Equity Securities	$	352,062	$	41,073	$	(1,522	)	$	312,511
Short-Term Investments		130,881		283		—			130,598
Total Investments	$	3,233,347	$	90,193	$	(15,865	)	$	3,159,019

	December 31, 2016
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	273,776	$	2,192	$	(5,128	)	$	276,712
States, Municipalities and Political Subdivisions		547,415		11,542		(4,036	)		539,909
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		487,364		4,016		(6,585	)		489,933
Residential Mortgage Obligations		20,530		453		(55	)		20,132
Asset-Backed Securities		314,601		824		(1,178	)		314,955
Commercial Mortgage-Backed Securities		154,139		2,859		(1,904	)		153,184
Subtotal	$	976,634	$	8,152	$	(9,722	)	$	978,204
Corporate Exposures		838,057		10,185		(5,528	)		833,400
Total Fixed Maturities	$	2,635,882	$	32,071	$	(24,414	)	$	2,628,225
Equity Securities:
Common Stocks	$	164,087	$	24,677	$	(964	)	$	140,374
Preferred Stocks		185,055		2,339		(4,821	)		187,537
Total Equity Securities	$	349,142	$	27,016	$	(5,785	)	$	327,911
Short-Term Investments		143,539		88		—			143,451
Total Investments	$	3,128,563	$	59,175	$	(30,199	)	$	3,099,587

Corporate Exposures consist of investments in corporate bonds, hybrid bonds and redeemable preferred stocks.

During 2016, our Company made investments in certain companies, which are reported as Other Invested Assets on the Consolidated Balance Sheet and accounted for using the equity method.  In applying the equity method, these investments are initially recorded at cost and are subsequently adjusted based on our Company’s proportionate share of the net income or loss of the investments. Our initial purchase price for these investments was $2.0 million with a current carrying value of $1.8 million at June 30, 2017 as reflected on our Consolidated Balance Sheet.

13

As of June 30, 2017 and December 31, 2016, our Company did not have a concentration of greater than 5% of invested assets in a single non-government backed issuer.

As of June 30, 2017 and December 31, 2016, Fixed Maturities for which Non-Credit OTTI was previously recognized and included in AOCI were in a Net Unrealized Gain position of $0.4 million in each period.

The fair value of our Company’s investment portfolio may fluctuate significantly in response to various factors such as changes in interest rates, investment quality ratings, equity prices, foreign exchange rates and credit spreads. Our Company does not have the intent to sell nor is it more likely than not that it will have to sell Fixed Maturities in unrealized loss positions that are not other-than-temporarily impaired before recovery. For structured securities, default probability and severity assumptions differ based on property type, vintage and the stress of the collateral. Our Company does not intend to sell, and it is more likely than not that our Company will not be required to sell, these securities before the recovery of the amortized cost basis. For Equity Securities, our Company also considers our intent to hold securities as part of the process of evaluating whether a decline in fair value represents an other-than-temporary decline in value. Our Company may realize investment losses to the extent our liquidity needs require the disposition of Fixed Maturity securities in unfavorable interest rate, liquidity or credit spread environments. Significant changes in the factors our Company considers when evaluating investments for impairment losses could result in a significant change in impairment losses reported in the Consolidated Financial Statements.

The contractual maturity dates for Fixed Maturities categorized by the number of years until maturity as of June 30, 2017 are shown in the following table:

	June 30, 2017
	Fair		Amortized
amounts in thousands	Value		Cost
Due in one year or less	$	208,510	$	208,573
Due after one year through five years		719,399		714,152
Due after five years through ten years		313,225		305,230
Due after ten years		574,582		555,096
Mortgage-Backed and Asset-Backed Securities		934,688		932,859
Total	$	2,750,404	$	2,715,910

Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Prepayment assumptions associated with the Mortgage-Backed and Asset-Backed Securities are reviewed on a periodic basis. When changes in prepayment assumptions are deemed necessary as the result of actual prepayments differing from anticipated prepayments, securities are revalued based upon the new prepayment assumptions utilizing the retrospective accounting method. Due to the periodic repayment of principal, our Mortgage-Backed and Asset-Backed Securities are estimated to have an effective maturity of approximately 4.9 years.

14

The following tables summarize all securities in a gross unrealized loss position as of June 30, 2017 and December 31, 2016, showing the aggregate fair value and gross unrealized loss by the length of time those securities have continuously been in a gross unrealized loss position:

	June 30, 2017
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	127,900	$	(1,339	)	$	17,878	$	(1,321	)	$	145,778	$	(2,660	)
States, Municipalities and Political Subdivisions		75,488		(1,405	)		21,502		(599	)		96,990		(2,004	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		307,616		(4,995	)		11,068		(394	)		318,684		(5,389	)
Residential Mortgage Obligations		262		(1	)		746		(24	)		1,008		(25	)
Asset-Backed Securities		77,936		(465	)		2,694		(13	)		80,630		(478	)
Commercial Mortgage-Backed Securities		33,780		(651	)		6,359		(781	)		40,139		(1,432	)
Subtotal	$	419,594	$	(6,112	)	$	20,867	$	(1,212	)	$	440,461	$	(7,324	)
Corporate Exposures		214,720		(2,207	)		20,848		(148	)		235,568		(2,355	)
Total Fixed Maturities	$	837,702	$	(11,063	)	$	81,095	$	(3,280	)	$	918,797	$	(14,343	)
Equity Securities:
Common Stocks	$	26,598	$	(1,023	)	$	—	$	—		$	26,598	$	(1,023	)
Preferred Stocks		21,604		(467	)		528		(32	)		22,132		(499	)
Total Equity Securities	$	48,202	$	(1,490	)	$	528	$	(32	)	$	48,730	$	(1,522	)
Total Fixed Maturities and Equity Securities	$	885,904	$	(12,553	)	$	81,623	$	(3,312	)	$	967,527	$	(15,865	)

	December 31, 2016
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	150,891	$	(2,570	)	$	16,819	$	(2,558	)	$	167,710	$	(5,128	)
States, Municipalities and Political Subdivisions		137,731		(3,111	)		13,255		(925	)		150,986		(4,036	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		349,119		(6,155	)		12,401		(430	)		361,520		(6,585	)
Residential Mortgage Obligations		953		(18	)		926		(37	)		1,879		(55	)
Asset-Backed Securities		95,514		(970	)		48,093		(208	)		143,607		(1,178	)
Commercial Mortgage-Backed Securities		51,932		(1,164	)		7,910		(740	)		59,842		(1,904	)
Subtotal	$	497,518	$	(8,307	)	$	69,330	$	(1,415	)	$	566,848	$	(9,722	)
Corporate Exposures		325,733		(5,086	)		26,005		(442	)		351,738		(5,528	)
Total Fixed Maturities	$	1,111,873	$	(19,074	)	$	125,409	$	(5,340	)	$	1,237,282	$	(24,414	)
Equity Securities:
Common Stocks	$	31,272	$	(634	)	$	1,471	$	(330	)	$	32,743	$	(964	)
Preferred Stocks		113,742		(4,785	)		523		(36	)		114,265		(4,821	)
Total Equity Securities	$	145,014	$	(5,419	)	$	1,994	$	(366	)	$	147,008	$	(5,785	)
Total Fixed Maturities and Equity Securities	$	1,256,887	$	(24,493	)	$	127,403	$	(5,706	)	$	1,384,290	$	(30,199	)

Our Company analyzes impaired securities quarterly to determine if any impairments are other-than-temporary.  The above securities with unrealized losses are deemed to be temporarily impaired based on our evaluation.  

As of June 30, 2017, there were 321 Fixed Maturities and 40 Equity Securities in an unrealized loss position. As of December 31, 2016, there were 413 Fixed Maturities and 75 Equity Securities in an unrealized loss position. As of June 30, 2017 and December 31, 2016, the gross unrealized loss for the greater than 12 months category consists primarily of Agency and Foreign Government Bonds principally due to an unfavorable foreign exchange movement. To a lesser extent the gross unrealized loss for the greater than 12

15

months category is driven by unrealized losses on our longer dated Municipal Bonds and one Commercial Mortgage-Backed Security which were impacted by rising interest rates and widening credit spreads. The gross unrealized loss for the less than 12 months category for the period ended June 30, 2017 and December 31, 2016 consists primarily of Agency Mortgage-Backed Securities and Corporate Exposures due to an increase in interest rates since the time of purchase.    

As of June 30, 2017 and December 31, 2016, the largest unrealized loss by a non-government backed issuer in the investment portfolio was $0.9 million and $1.0 million, respectively.

Our Company’s ability to hold securities is supported by sufficient cash flow from our operations and from maturities within our investment portfolio in order to meet our claims payments and other disbursement obligations arising from our underwriting operations without selling such investments.  With respect to securities where the decline in value is determined to be temporary and the security’s value is not written down, a subsequent decision may be made to sell that security and realize a loss.  Subsequent decisions on security sales are made within the context of overall risk monitoring, changing information and market conditions.  

Our Company had no credit related OTTI losses during the three months ended June 30, 2017. Our Company had two credit related OTTI losses of $1.1 million in the equity portfolio during the six months ended June 30, 2017. Our Company had one credit related OTTI loss of $0.2 million in the Fixed Maturities portfolio during the three and six months ended June 30, 2016.

The following table summarizes the cumulative amounts related to our Company’s credit loss portion of the OTTI losses on Fixed Maturities for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,				Six Months Ended June 30,
amounts in thousands	2017		2016		2017		2016
Beginning Balance	$	2,361	$	2,361	$	2,361	$	2,361
Additions for Credit Loss Impairments recognized in the    current period on securities not previously impaired		—		150		—		150
Additions for Credit Loss Impairments recognized in the    current period on securities previously impaired		—		—		—		—
Reductions for Credit Loss Impairments previously    recognized  on securities sold during the period		—		—		—		—
Ending Balance	$	2,361	$	2,511	$	2,361	$	2,511

Our Company’s Net Investment Income was derived from the following sources:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities	$	19,186		$	16,920		$	37,527		$	33,657
Equity Securities		3,780			3,431			7,564			6,878
Short-Term Investments		200			288			412			498
Total Investment Income	$	23,166		$	20,639		$	45,503		$	41,033
Investment Expenses		(901	)		(764	)		(1,790	)		(1,564	)
Net Investment Income	$	22,265		$	19,875		$	43,713		$	39,469

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Realized Gains and Losses, excluding net OTTI losses recognized in earnings, for the periods indicated, were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities:
Gains	$	344		$	1,296		$	812		$	3,844
Losses		(958	)		(738	)		(2,214	)		(1,865	)
Fixed Maturities, Net	$	(614	)	$	558		$	(1,402	)	$	1,979
Short-Term:
Gains	$	135		$	407		$	247		$	675
Losses		(69	)		(60	)		(260	)		(143	)
Short-Term, Net	$	66		$	347		$	(13	)	$	532
Equity Securities:
Gains	$	2,470		$	1,071		$	4,386		$	1,680
Losses		(228	)		(16	)		(228	)		(634	)
Equity Securities, Net	$	2,242		$	1,055		$	4,158		$	1,046
Net Realized Gains	$	1,694		$	1,960		$	2,743		$	3,557

NOTE 4.  FAIR VALUE MEASUREMENT

The fair value of our financial instruments is determined based on the following fair value hierarchy:

Level 1 – Quoted prices for identical instruments in active markets.  Examples are listed Common Stocks and fixed income securities traded on an exchange.  U.S. Treasury securities are reported as Level 1 and are valued based on unadjusted quoted prices for identical assets in active markets that our Company can access.

Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.  Examples are Asset-Backed and Mortgage-Backed Securities that are similar to other Asset-Backed or Mortgage-Backed Securities observed in the market. U.S. Government Agency Securities are reported as Level 2 and are valued using yields and spreads that are observable in active markets.

Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.  An example would be a private placement with minimal liquidity.

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The following tables present, for each of the fair value hierarchy levels as defined by the accounting guidance for fair value measurements described above, our Company’s Fixed Maturities and Equity Securities by asset class that are measured at fair value on a recurring basis, as well as the fair value of the 5.75% Senior Notes due October 15, 2023 (the “Senior Notes”) carried at amortized cost as of June 30, 2017 and December 31, 2016:

	June 30, 2017
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	58,932	$	205,579	$	—	$	264,511
States, Municipalities and Political Subdivisions		—		655,064		—		655,064
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		455,133		—		455,133
Residential Mortgage Obligations		—		18,037		—		18,037
Asset-Backed Securities		—		315,945		—		315,945
Commercial Mortgage-Backed Securities		—		145,573		—		145,573
Subtotal	$	—	$	934,688	$	—	$	934,688
Corporate Exposures		—		896,141		—		896,141
Total Fixed Maturities	$	58,932	$	2,691,472	$	—	$	2,750,404
Equity Securities:
Common Stocks	$	172,456	$	—	$	—	$	172,456
Preferred Stocks		—		179,606		—		179,606
Total Equity Securities	$	172,456	$	179,606	$	—	$	352,062
Short-Term Investments		130,881		—		—		130,881
Total Assets Measured at Fair Value	$	362,269	$	2,871,078	$	—	$	3,233,347
Senior Notes	$	—	$	283,237	$	—	$	283,237
Total Liabilities Measured at Fair Value	$	—	$	283,237	$	—	$	283,237

	December 31, 2016
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	47,704	$	226,072	$	—	$	273,776
States, Municipalities and Political Subdivisions		—		547,415		—		547,415
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		487,364		—		487,364
Residential Mortgage Obligations		—		20,530		—		20,530
Asset-Backed Securities		—		314,601		—		314,601
Commercial Mortgage-Backed Securities		—		154,139		—		154,139
Subtotal	$	—	$	976,634	$	—	$	976,634
Corporate Exposures		—		838,057		—		838,057
Total Fixed Maturities	$	47,704	$	2,588,178	$	—	$	2,635,882
Equity Securities:
Common Stocks	$	164,087	$	—	$	—	$	164,087
Preferred Stocks		—		185,055		—		185,055
Total Equity Securities	$	164,087	$	185,055	$	—	$	349,142
Short-Term Investments		143,539		—		—		143,539
Total Assets Measured at Fair Value	$	355,330	$	2,773,233	$	—	$	3,128,563
Senior Notes	$	—	$	280,316	$	—	$	280,316
Total Liabilities Measured at Fair Value	$	—	$	280,316	$	—	$	280,316

All other financial assets and liabilities including Cash, Premium Receivable, Reinsurance Recoverable and Reinsurance Balances Payable are carried at cost, which approximates fair value.

Our Company did not have any significant transfers between Level 1 and Level 2 classifications for the three and six months ended June 30, 2017 and 2016.

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As of June 30, 2017, our Company did nothave any Level 3 assets.

NOTE 5.  LOSS RESERVES

We establish reserves for the estimated unpaid ultimate liability for losses and LAE under the terms of our policies and agreements.  The determination of Reserves for Losses and LAE is partially dependent upon the receipt of information from agents and brokers.  Reserves include estimates for both claims that have been reported and for those that have been incurred but not reported (“IBNR”), and include estimates of expenses associated with processing and settling these claims.  Reserves are recorded in Reserves for Losses and LAE in the Consolidated Balance Sheets.  Our estimates and judgements may be revised as additional experience and other data become available and are reviewed, as new or improved methodologies are developed, or as laws change. Frequency/severity analyses are also performed for certain books of business.  To the extent that reserves are found deficient or redundant, a strengthening or release is recognized as a charge or credit to earnings.

The following table summarizes our Company’s Reserves for Losses and LAE activity for the six months ended June 30, 2017 and 2016:

	For the Six Months Ended June 30,
amounts in thousands	2017			2016
Net Reserves for Losses and LAE at Beginning of Year	$	1,510,451		$	1,393,126
Provision for Losses and LAE for Claims Occurring in the Current Year		331,595			330,775
Increase (Decrease) in Estimated Losses and LAE for Claims Occurring in Prior Years		15,115			(10,613	)
Incurred Losses and LAE	$	346,710		$	320,162
Losses and LAE Paid for Claims Occurring During:
Current Year		(47,235	)		(37,641	)
Prior Years		(249,895	)		(212,938	)
Losses and LAE Payments	$	(297,130	)	$	(250,579	)
Foreign Currency Adjustment		3,432			(8,207	)
Net Reserves for Losses and LAE at End of Period		1,563,463			1,454,502
Reinsurance Recoverables on Unpaid Losses and LAE		782,864			814,261
Gross Reserves for Losses and LAE at End of Period	$	2,346,327		$	2,268,763

For the six months ended June 30, 2017, our Incurred Losses and LAE increased $26.5 million as compared to the same period in 2016.

The Provision for Losses and LAE for Claims Occurring in the Current Year increased primarily due to growth in production increasing Net Earned Premium. This increase was partially offset by $10.9 million less of additional net current AY loss activity primarily related to a lower level of large event losses during the six months ended June 30, 2017 compared to the same period in 2016, which included the Alberta Wildfires, Ecuador Earthquake and Taiwan Earthquake.

In addition, we incurred $15.1 million of net prior accident year (“AY”) reserve strengthening for the six months ended June 30, 2017 primarily related to attritional loss development in our Int’l Insurance reporting segment and the settlement of a large claim in our GlobalRe reporting segment compared to $10.6 million of net prior AY reserve releases for the same period in 2016attributable to better than expected loss emergence within all three reporting segments.

For the six months ended June 30, 2017, our Losses and LAE Payments increased $46.6 million as compared to the same period in 2016, primarily due to increased claim payments in our Int’l Insurance reporting segment.

NOTE 6. CEDED REINSURANCE

As of June 30, 2017, the credit quality distribution of our Company’s Reinsurance Recoverable of $1.1 billion for ceded paid losses, ceded unpaid losses and LAE, and ceded unearned premiums based on insurer financial strength ratings from A.M. Best or S&P was not significantly different from the credit quality distribution as of December 31, 2016.

Our allowance for uncollectible reinsurance was $12.1 million as of June 30, 2017 and December 31, 2016.

As of June 30, 2017, the list of our 10 largest reinsurers measured by the amount of Reinsurance Recoverable for ceded losses and LAE and ceded unearned premium, together with the reinsurance recoverable and collateral, was comparable to the list as of December 31, 2016.

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NOTE 7.  COMMITMENTS AND CONTINGENCIES

In 2013, the State of Connecticut (“the State”) awarded our Company up to $11.5 million ($8.0 million in loans and $3.5 million in grants) to move our corporate headquarters to Stamford, Connecticut.  The loan is non-interest bearing, has a term of 10 years and is subject to forgiveness based on our compliance with certain conditions set forth in the agreement with the State.  The amount of the loan to be received is dependent on our Company reaching certain milestones for creation of new jobs over a five-year period, and the funds are to be used to offset certain equipment purchases, facility costs, training of employees and other eligible project-related costs.  As of June 30, 2017, our Company had received $9.9 million of the award ($7.5 million in loans and $2.4 million of the grant) and earned a loan forgiveness credit of $7.0 million with the State. Our Company is recognizing the amount of loan and grants received over the period in which offsetting expenses are recognized. Our Company recognized $0.3 million and $0.6 million of the incentive for the three and six months ended June 30, 2017. As of June 30, 2017 and December 31, 2016, our Company has deferred revenue of $5.2 million and $4.8 million, respectively, which is included in Other Liabilities on the Consolidated Balance Sheets.

On February 16, 2017, our Company entered into a guarantee, pursuant to which it guaranteed all of the liabilities and obligations of NIIC (the “Guarantee”). The Guarantee will remain effective until all of such liabilities and obligations are discharged, and in the event that our Company does not meet its obligations under the Guarantee, any person who is covered by an insurance policy, certificate of coverage or reinsurance contract issued by NIIC will be a third party beneficiary under the Guarantee.  Our Company’s obligations under the Guarantee may be terminated by providing twelve months prior written notice to NIIC. However the obligations of our Company under the Guarantee terminate immediately in the event that (i) the majority of the outstanding voting capital stock in NIIC is sold to any non-affiliated entity; (ii) A.M. Best has confirmed that NIIC will receive the same financial strength rating as NIC or NSIC, without the benefit of the Guarantee; or (iii) NIIC withdraws its request to be rated by A.M. Best, provided that NIIC has not been downgraded within the prior twelve months.

In the ordinary course of conducting business, our Parent Company’s subsidiaries are involved in various legal proceedings. Most of these proceedings consist of claims litigation involving our Parent Company’s subsidiaries as either: (a) liability insurers defending or providing indemnity for third party claims brought against insureds or (b) insurers defending first party coverage claims brought against them. In general, our Company believes we have valid defenses to these cases. Our Company’s management believes that the ultimate liability, if any, with respect to these legal proceedings, after consideration of provisions made for potential losses and cost of defense, will not be material to our Company’s Consolidated Balance Sheets, Statements of Income and Statements of Cash Flows.

NOTE 8.  STOCK-BASED COMPENSATION

Stock-based compensation granted under our Company’s stock plans is expensed in tranches over the vesting period. Non-performance based grants generally vest equally over a three or four-year period. Performance units generally cliff vest three years after they are granted. For the six months ended June 30, 2017, we granted 261,733 stock incentive units at a weighted average grant price of $55.74. Each performance unit and restricted stock unit represents a contingent right to receive one share of Common Stock as of the vesting date. Such Common Stock may be subject to forfeiture for the payment of any required tax withholding.

NOTE 9. STOCKHOLDERS’ EQUITY

On June 30, 2017 our Company paid a dividend of $0.06 per share on The Navigators Group, Inc. Common Stock to Stockholders of record on June 9, 2017. 

The declaration and amount of any future dividend will be at the discretion of the Board of Directors, and will depend upon many factors, including financial condition, results of operations, business requirements, regulatory, legal constraints and other factors the Board of Directors deems relevant.

NOTE 10. SUBSEQUENT EVENTS

On August 3, 2017, our Board of Directors declared a cash dividend on our Company’s Common Stock of $0.06 per share, payable on September 14, 2017 to stockholders of record on August 24, 2017.

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

FORWARD-LOOKING STATEMENTS

Some of the statements in this Quarterly Report on Form 10-Q are “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact included in or incorporated by reference in this Quarterly Report are forward-looking statements.  Whenever used in this report, the words “estimate,” “expect,” “believe,” “may,” “will,” “intend,” “continue” or similar expressions or their negative are intended to identify such forward-looking statements.  Forward-looking statements are derived from information that we currently have and assumptions that we make, and are subject to a number of risks and uncertainties, including those described in the “Risk Factors” section of our 2016 Annual Report on Form 10-K.  We operate in a competitive environment, with new risks emerging from time to time. We cannot assure you that anticipated results will be achieved, since actual results may differ materially because of both known and unknown risks and uncertainties which we face.

In light of these risks, uncertainties and assumptions, any forward-looking events discussed in this Form 10-Q may not occur, and we undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of their respective dates.

U.S. GAAP and Non-GAAP Financial Performance Metrics

Throughout this Quarterly Report, we present our operations in the way we believe will be most meaningful, useful and transparent to anyone using this financial information to evaluate our performance. In addition to the presentation of Net Income, Book Value, Book Value per Share, Net Losses and LAE Reserves and Combined Ratio, we show certain non-GAAP financial measures as defined in Regulation G that we believe are valuable in managing our business and drawing comparisons to our peers. These non-GAAP measures are Net Operating Earnings, Underwriting Profit (Loss), and Adjusted Net Losses and LAE Ratio.

The following is a list of GAAP and non-GAAP measures found throughout this report with their definitions, relationships to GAAP measures and explanations of their importance to our operations:

Book Value and Book Value Per Share

Book Value is equivalent to Stockholders’ Equity and Book Value per Share is calculated by dividing Stockholders’ Equity by the number of outstanding shares at the end of the interim period.

Net Losses and LAE Reserves

Reserves for Losses and LAE, as shown in the liabilities section of our Consolidated Balance Sheets, represents the total gross obligations to claimants for both estimates of known claims and estimates for IBNR claims. The related asset item, Reinsurance Recoverable on Unpaid Losses and LAE, is the estimate of both known claims and IBNR that we expect to recover from reinsurers. The net of these two items is generally referred to as Net Losses and LAE Reserves and is commonly used in our disclosures regarding the process of establishing these various estimated amounts.

Combined Ratio

The Combined Ratio is a common insurance industry measure of profitability for any underwriting operation and is calculated in three components. First, the Loss Ratio is Net Losses and LAE divided by Net Earned Premiums. The second component, the Commission Expense Ratio is Commission Expenses divided by Net Earned Premiums. The third component, the Other Operating Expense Ratio, reflects the sum of Other Operating Expenses and Other Underwriting Income (Expense), divided by Net Earned Premiums. All items included in these components of the Combined Ratio are presented in our GAAP Consolidated Financial Statements. The sum of the Loss, Commission Expense and Other Operating Expense Ratios is the Combined Ratio. The difference between the Combined Ratio and 100% reflects the rate of Underwriting Profit (Loss). For example, a Combined Ratio of 85% implies that for every $100 of premium we earn, we record $15 of Underwriting Profit.

Net Operating Earnings

Net Operating Earnings is a “non-GAAP financial measure” as defined in Regulation G. Net Operating Earnings is comprised of Net Income excluding After-Tax Net Realized Gains (Losses), After-Tax Net OTTI Losses Recognized in Earnings, and After-Tax Foreign Exchange Gains and Losses resulting from foreign currency transactions (transactions denominated in a currency other than the entity’s functional currency) and translation adjustments (translation of foreign currency denominated assets and liabilities into the entity’s functional currency). We believe that showing Net Income exclusive of Realized Gains and Losses, Net OTTI Losses Recognized in Earnings, and Foreign Exchange Gains and Losses reflects the underlying fundamentals of our business.

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A reconciliation of Net Income (the nearest GAAP financial measure) to Net Operating Earnings can be found in Item 2, Results of Operations. We believe this presentation enhances the understanding of our results of operations by highlighting the underlying profitability of our business and enables investors and other users of our financial information to analyze underlying business performance in a manner similar to management. We also believe this measure follows industry practice and, therefore facilitates comparison of our performance with our peer group.

Underwriting Profit (Loss)

Underwriting Profit (Loss) represents one measure of the pre-tax profitability of our insurance operations and is derived by subtracting Net Losses and LAE Incurred, Commission Expenses, Other Operating Expenses and Other Underwriting Income (Expense) from Net Earned Premiums. This information is available in total and by segment in Note 2 – Segment Information in the Interim Consolidated Financial Statements. The nearest comparable GAAP measure is Income Before Income Taxes which, in addition to Net Underwriting Profit (Loss), includes Net Investment Income, OTTI, Net Realized Gains (Losses) on Investments, Interest Expense and Other Income (Loss). While this measure is presented in the footnotes to the Interim Consolidated Financial Statements, it is considered a “non-GAAP financial measure” as defined in Regulation G when presented elsewhere on a consolidated basis.

A reconciliation of total Net Underwriting Profit (Loss) and its components to Income Before Income Taxes (the nearest GAAP financial measure) can be found in Item 1, Note 2 to the Interim Consolidated Financial Statements and in Item 2, Segment Results. We believe that presentation of Net Underwriting Profit (Loss) provides investors with an enhanced understanding of our results of operations, by highlighting the underlying pre-tax profitability of our underwriting activities.

Adjusted Net Losses and LAE Ratio

The Net Losses and LAE ratio is a major component of our Underwriting Profit (Loss). In order to better understand the impact of this ratio on Underwriting Profit (Loss), we present the impact of reinsurance reinstatement premiums (“RRPs”), development on current AY results and development on prior AY results to arrive at our Adjusted Net Losses and LAE Ratio.

A reconciliation of the Net Losses and LAE Ratio (the nearest GAAP financial measure) to the Adjusted Net Losses and LAE ratio can be found in Item 2, Results of Operations and Segment Results. We believe that presentation of the Adjusted Net Losses and LAE Ratio allows investors to more easily analyze our Company’s results of operations and understand our underlying business performance.

Overview

The discussion and analysis of our financial condition and results of operations contained herein should be read in conjunction with our 2016 Annual Report on Form 10-K in its entirety as well as the statements under “Forward-Looking Statements” and the Interim Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for a complete description of events, trends, uncertainties, risks and critical accounting estimates affecting us.

Unless the context requires otherwise, the terms “we,” “us,”  “our” or “our Company” are used to mean The Navigators Group, Inc., a Delaware holding company established in 1982, and its subsidiaries. The term “Parent Company” is used to mean The Navigators Group, Inc. without its subsidiaries.

We are an international insurance company with a long-standing area of specialization in Marine insurance. We also offer P&C insurance, primarily general liability coverage and umbrella & excess liability coverage to commercial enterprises through our Primary and Excess Casualty divisions. We have also developed niches in Professional Liability insurance, through our D&O and E&O divisions, as well as assumed reinsurance products.

On December 6, 2016, our Board of Directors declared a two-for-one stock split of The Navigators Group, Inc. Common Stock, to be effected in the form of a stock dividend. Stockholders of record at the close of business on December 30, 2016 received one additional share of Common Stock for every share of Common Stock held. The additional shares of Common Stock were issued on January 20, 2017.All disclosures of shares and per share data have been retroactively adjusted to reflect the stock split for all periods presented.

Effective January 1, 2017, we sold our underwriting agency operations in Sweden and Denmark. The transaction represented a 100% disposition of our Sweden and Denmark corporations, NUAL AB and Navigators A/S, respectively. This transaction did not materially impact our results of operation, financial condition or liquidity.

Additionally, during the first quarter of 2017 our new U.K. based insurance company, NIIC,which is a wholly-owned direct subsidiary of our Parent Company, began writing business.

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Financial Highlights – Selected Indicators

	Three Months Ended				Six Months Ended
amounts in thousands, except per share amounts	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Results of Operations Data:
Net Earned Premiums	$	293,835	$	267,992	$	579,966	$	532,350
Net Investment Income		22,265		19,875		43,713		39,469
Underwriting Profit		7,797		1,050		17,967		14,098
Net Income		20,502		16,190		41,612		39,122
Net Income per Diluted Share (1)	$	0.69	$	0.54	$	1.39	$	1.31

amounts in thousands, except per share amounts	As of June 30, 2017		As of December 31, 2016
Balance Sheet Data:
Total Assets	$	5,063,894	$	4,814,037
Total Shareholders' Equity	$	1,244,168	$	1,178,188
Book Value per Share (1)	$	42.21	$	40.45

(1) - We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

Our revenue is primarily comprised of premiums and investment income. Cash flow is generated from premiums collected and investment income received less paid losses and loss expenses, Commission Expenses and administrative expenses as well as the timing of reinsurance receipts and payments. Our products are distributed through multiple channels, utilizing global, national and regional retail and wholesale insurance brokers.

We report our results of operations consistent with the manner in which our Chief Operating Decision Maker reviews the business to assess performance by our four reportable segments: U.S. Insurance, Int’l Insurance, GlobalRe and Corporate.  

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Results of Operations

The following table presents a summary of our consolidated financial results for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,						Six Months Ended June 30,						%Change
amounts in thousands, except per share amounts	2017			2016			2017			2016			QTD			YTD
Gross Written Premiums	$	452,179		$	412,565		$	902,484		$	826,442			9.6	%		9.2	%
Ceded Written Premiums		(118,897	)		(106,030	)		(232,039	)		(200,087	)		12.1	%		16.0	%
Net Written Premiums		333,282			306,535			670,445			626,355			8.7	%		7.0	%
Net Earned Premiums		293,835			267,992			579,966			532,350			9.6	%		8.9	%
Net Losses and LAE		(177,110	)		(167,206	)		(346,710	)		(320,162	)		5.9	%		8.3	%
Commission Expenses		(48,173	)		(40,726	)		(96,017	)		(78,280	)		18.3	%		22.7	%
Other Operating Expenses		(60,766	)		(59,074	)		(119,304	)		(119,883	)		2.9	%		(0.5	%)
Other Underwriting Income		11			64			32			73			(82.8	%)		(56.2	%)
Underwriting Profit	$	7,797		$	1,050		$	17,967		$	14,098		NM				27.4	%
Net Investment Income		22,265			19,875			43,713			39,469			12.0	%		10.8	%
Net Realized Gains		1,694			1,810			1,650			3,407			(6.4	%)		(51.6	%)
Interest Expense		(3,861	)		(3,858	)		(7,722	)		(7,716	)		0.1	%		0.1	%
Other Income (Loss)		(422	)		4,366			625			6,906		NM				(90.9	%)
Income Before Income Taxes	$	27,473		$	23,243		$	56,233		$	56,164			18.2	%		0.1	%
Income Tax Expense		(6,971	)		(7,053	)		(14,621	)		(17,042	)		(1.2	%)		(14.2	%)
Net Income	$	20,502		$	16,190		$	41,612		$	39,122			26.6	%		6.4	%
Net Income per Basic Share (1)	$	0.70		$	0.56		$	1.42		$	1.35
Net Income per Diluted Share (1)	$	0.69		$	0.54		$	1.39		$	1.31
Effective Tax Rate		25.4	%		30.3	%		26.0	%		30.3	%
Losses and LAE Ratio		60.3	%		62.4	%		59.8	%		60.1	%
Commission Expense Ratio		16.4	%		15.2	%		16.6	%		14.7	%
Other Operating Expense Ratio (2)		20.6	%		22.0	%		20.5	%		22.6	%
Combined Ratio		97.3	%		99.6	%		96.9	%		97.4	%

NM - Percentage change not meaningful

(1) - We completed a two-for-one stock split on January 20, 2017. All per share data has been retroactively restated on a post-split basis.

(2) - Includes Other Operating Expenses and Other Underwriting Income.

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The following tables calculate our Net Operating Earnings for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30, 2017									Three Months Ended June 30, 2016									% Change
amounts in thousands, except per share amounts	Pre-Tax			Tax (1)			After-Tax			Pre-Tax			Tax (1)			After-Tax			QTD
Net Income	$	27,473		$	(6,971	)	$	20,502		$	23,243		$	(7,053	)	$	16,190			26.6	%
Adjustments to Net Income:
Realized Losses (Gains)		(1,694	)		593			(1,101	)		(1,810	)		634			(1,176	)		(6.4	%)
FX Losses (Gains)		463			(162	)		301			(4,367	)		1,529			(2,838	)	NM
Net Operating Earnings	$	26,242		$	(6,540	)	$	19,702		$	17,066		$	(4,890	)	$	12,176			61.8	%
Average Common Shares Outstanding: (2)
Basic								29,470									29,074
Diluted								29,918									29,953
Net Operating Earnings per Common Share: (2)
Basic							$	0.67								$	0.42
Diluted							$	0.66								$	0.41

	Six Months Ended June 30, 2017									Six Months Ended June 30, 2016									% Change
amounts in thousands, except per share amounts	Pre-Tax			Tax (1)			After-Tax			Pre-Tax			Tax (1)			After-Tax			YTD
Net Income	$	56,233		$	(14,621	)	$	41,612		$	56,164		$	(17,042	)	$	39,122			6.4	%
Adjustments to Net Income:
Realized Losses (Gains)		(1,650	)		578			(1,072	)		(3,407	)		1,193			(2,214	)		(51.6	%)
FX Losses (Gains)		(660	)		231			(429	)		(6,907	)		2,417			(4,490	)		(90.4	%)
Net Operating Earnings	$	53,923		$	(13,812	)	$	40,111		$	45,850		$	(13,432	)	$	32,418			23.7	%
Average Common Shares Outstanding: (2)
Basic								29,377									29,029
Diluted								29,897									29,884
Net Operating Earnings per Common Share: (2)
Basic							$	1.37								$	1.12
Diluted							$	1.34								$	1.08

NM - Percentage change not meaningful

(1) - Tax impact is estimated by applying the statutory rates of applicable jurisdictions, after consideration of any other relevant factors.

(2) - We completed a two-for-one stock split on January 20, 2017. All per share data has been retroactively restated on a post-split basis.

Underwriting Profit

Quarter to Date Variance

Underwriting Profit increased $6.7 million for the three months ended June 30, 2017 compared to the same period in 2016, driven by a $6.6 million decrease in Underwriting Losses within our Int’l Insurance reporting segment and a $2.7 million increase in Underwriting Profit for our GlobalRe reporting segment, partially offset by a $2.5 million decrease in Underwriting Profit for our U.S. Insurance reporting segment.

The decrease in Underwriting Losses for our Int’l Insurance reporting segment for the three months ended June 30, 2017 compared to the same period in 2016 was primarily due to a decrease in the current AY loss development due to a lower level of large event losses, the impact of increased Net Earned Premiums and lower operating expenses, partially offset by net prior year reserve strengthening in 2017 compared to net prior year reserve releases in 2016 and an increase in the Commission Expense.

The increase in Underwriting Profit for our GlobalRe reporting segment for the three months ended June 30, 2017 compared to the same period in 2016 was primarily due to a decrease in the current AY loss development due to a lower level of large event losses and the impact of increased Net Earned Premiums, partially offset by net prior year reserve strengthening in 2017 compared to net prior year reserve releases in 2016 and higher operating expenses.

The decrease in Underwriting Profit for our U.S. Insurance reporting segment for the three months ended June 30, 2017 compared to the same period in 2016 was primarily due to net prior year reserve strengthening in 2017 compared to net prior year reserve releases in 2016, an increase in the Commission Expense and higher operating expenses, partially offset by the impact of increased Net Earned Premiums.

25

Year to Date Variance

Underwriting Profit increased $3.9 million for the six months ended June 30, 2017 compared to the same period in 2016, driven by a $3.0 million increase in Underwriting Profit for our GlobalRe reporting segment, a $0.5 million decrease in Underwriting Losses for our Int’l Insurance reporting segment and a $0.3 million increase in Underwriting Profit for our U.S. Insurance reporting segment.

The increase in Underwriting Profit for our GlobalRe reporting segment for the six months ended June 30, 2017 compared to the same period in 2016 was primarily due to a decrease in the current AY loss development due to a lower level of large event losses and the impact of increased Net Earned Premiums, partially offset by net prior year reserve strengthening in 2017 compared to net prior year reserve releases in 2016, an increase in the Commission Expense and higher operating expenses.

The decrease in Underwriting Losses for our Int’l Insurance reporting segment for the six months ended June 30, 2017 compared to the same period in 2016 was attributable to the same drivers as the quarter to date variance.

The increase in Underwriting Profit for our U.S. Insurance reporting segment for the six months ended June 30, 2017 compared to the same period in 2016 was primarily due to the impact of increased Net Earned Premiums and improved loss performance on certain divisions, partially offset by a higher level of net prior year reserve releases in 2016, an increase in the Commission Expense and higher operating expenses.

For more detail on the Underwriting Profit, see the U.S. Insurance, Int’l Insurance and GlobalRe reporting segment results sections included herein.

A major component of our Underwriting Profit (Loss) is Net Losses and LAE.  The following tables present the impact of changes in reserves and RRPs on our Net Losses and LAE Ratio for the three and six months ended June 30, 2017 and 2016.

	Three Months Ended June 30,						Point
	2017			2016			Change
Reported Net Losses and LAE Ratio		60.3	%		62.4	%		(2.1	)
RRPs		0.1	%		(0.7	%)		0.8
Additional Net Current AY Reserve Release/(Development)		(2.6	%)		(7.7	%)		5.1
Net Prior AY Reserve Release/(Strengthening)		(2.7	%)		3.2	%		(5.9	)
Adjusted Net Losses and LAE Ratio		55.1	%		57.2	%		(2.1	)

	Six Months Ended June 30,						Point
	2017			2016			Change
Reported Net Losses and LAE Ratio		59.8	%		60.1	%		(0.3	)
RRPs		0.1	%		(0.3	%)		0.4
Additional Net Current AY Reserve Release/(Development)		(2.1	%)		(4.4	%)		2.3
Net Prior AY Reserve Release/(Strengthening)		(2.6	%)		2.0	%		(4.6	)
Adjusted Net Losses and LAE Ratio		55.2	%		57.4	%		(2.2	)

Quarter to Date Variance

For the three months ended June 30, 2017, our Reported Net Losses and LAE Ratio decreased 2.1 points as compared to the same period in 2016.

The decrease was impacted by the level of large event losses and RRPs during the three months ended June 30, 2016, which included the Alberta Wildfires, Ecuador Earthquake and Taiwan Earthquake, compared to the same period in 2017. Partially offsetting the decrease in the reported Net Losses and LAE Ratio for the three months ended June 30, 2017 was $8.0 million of Net Prior AY Reserve Strengthening primarily related to attritional loss development in our Int’l Insurance reporting segment and the settlement of a large Accident & Health (“A&H”) claim in our GlobalRe reporting segment compared to Net Prior AY Reserve Releases of $8.8 million for the same period in 2016 attributable to better than expected loss emergence within all three reporting segments.

After adjusting for Additional Net Current AY Reserve Development, Net Prior AY Reserve Release/(Strengthening) and RRPs, the Adjusted Net Losses and LAE Ratio for the three months ended June 30, 2017 decreased 2.1 points compared to the same period in 2016 primarily attributable to changes in the mix of business.

26

Year to Date Variance

For the six months ended June 30, 2017, our Reported Net Losses and LAE Ratio decreased 0.3 points as compared to the same period in 2016.

The decrease was impacted by the level of large event losses and RRPs during the six months ended June 30, 2016, which included the Alberta Wildfires, Ecuador Earthquake and Taiwan Earthquake, compared to the same period in 2017. Partially offsetting the decrease in the Reported Net Losses and LAE Ratio for the six months ended June 30, 2017 was $15.1 million of Net Prior AY Reserve Strengthening primarily related to attritional loss development in our Int’l Insurance reporting segment and the settlement of a large A&H claim in our GlobalRe reporting segment compared to Net Prior AY Reserve Releases of $10.6 million for the same period in 2016 attributable to better than expected loss emergence within all three reporting segments.

After adjusting for Additional Net Current AY Reserve Development, Net Prior AY Reserve Release/(Strengthening) and RRPs, the Adjusted Net Losses and LAE Ratio for the six months ended June 30, 2017 decreased 2.2 points compared to the same period in 2016 primarily attributable to changes in the mix of business.

Net Investment Income

Our Net Investment Income was derived from the following sources:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities	$	19,186		$	16,920		$	37,527		$	33,657
Equity Securities		3,780			3,431			7,564			6,878
Short-Term Investments		200			288			412			498
Total Investment Income	$	23,166		$	20,639		$	45,503		$	41,033
Investment Expenses		(901	)		(764	)		(1,790	)		(1,564	)
Net Investment Income	$	22,265		$	19,875		$	43,713		$	39,469

Quarter and Year to Date Variance

The increase in total Net Investment Income for the three and six months ended June 30, 2017 as compared to the same periods in the prior year was due to growth of invested assets coupled with higher yields. The annualized pre-tax yield, excluding Net Realized Gains and Losses and OTTI Losses Recognized in Earnings, for the three months ended June 30, 2017 and 2016, was 2.8% and 2.6%, respectively.  The annualized pre-tax yield, excluding Net Realized Gains and Losses and OTTI Losses Recognized in Earnings, for the six months ended June 30, 2017 and 2016, was 2.7% and 2.6%, respectively.  

As part of our overall investment strategy, we seek to build a tax efficient investment portfolio by maintaining an allocation of tax- exempt municipal bonds. The tax-exempt portion of our Fixed Maturities portfolio was 19.5% at June 30, 2017 as compared to 17.6% at June 30, 2016. Additionally, substantially all of our equity portfolio is invested in tax efficient securities which qualify for the dividends received deduction. The tax equivalent yield for the three months ended June 30, 2017 and 2016 was 3.2% and 2.8%, respectively. The tax equivalent yield for the six months ended June 30, 2017 and 2016 was 3.1% and 2.8%, respectively.

OTTI Losses Recognized in Earnings

Quarter and Year to Date Variance

Our Company had no credit related OTTI losses during the three months ended June 30, 2017.  Our Company had two credit related OTTI losses of $1.1 million in our equity portfolio during the six months ended June 30, 2017. Our Company had one credit related OTTI loss of $0.2 million in the Fixed Maturities portfolio during the three and six months ended June 30, 2016.

27

Net Realized Gains and Losses

Net Realized Gains and Losses, excluding OTTI Losses Recognized in Earnings, for the periods indicated were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities:
Gains	$	344		$	1,296		$	812		$	3,844
Losses		(958	)		(738	)		(2,214	)		(1,865	)
Fixed Maturities, Net	$	(614	)	$	558		$	(1,402	)	$	1,979
Short-Term:
Gains	$	135		$	407		$	247		$	675
Losses		(69	)		(60	)		(260	)		(143	)
Short-Term, Net	$	66		$	347		$	(13	)	$	532
Equity Securities:
Gains	$	2,470		$	1,071		$	4,386		$	1,680
Losses		(228	)		(16	)		(228	)		(634	)
Equity Securities, Net	$	2,242		$	1,055		$	4,158		$	1,046
Net Realized Gains	$	1,694		$	1,960		$	2,743		$	3,557

Quarter to Date Variance

Net Realized Gains and Losses are generated as part of the normal ongoing management of our investment portfolio. Net Realized Gains of $1.7 million for the three months ended June 30, 2017 are primarily due to the sale of Common Stocks, partially offset by foreign currency losses on our Canadian denominated Foreign Government Bonds. Net Realized Gains of $2.0 million for the three months ended June 30, 2016 are primarily due to the sale of Equity Securities and Corporate Bonds, partially offset by realized losses in the Fixed Maturities portfolio primarily driven by foreign currency losses on our Canadian Foreign Government Bonds.

Year to Date Variance

Net Realized Gains of $2.7 million for the six months ended June 30, 2017 are primarily due to the sale of Common Stocks, partially offset by foreign currency losses on our Canadian denominated Foreign Government Bonds. Net Realized Gains of $3.6 million for the six months ended June 30, 2016 are primarily due to the sale of Corporate and Municipal Bonds, offset by realized losses in the Fixed Maturities portfolio primarily driven by foreign currency losses in our Canadian denominated Foreign Government Bonds.

Interest Expense

Quarter and Year to Date Variance

Interest Expense was $3.9 million and $7.7 million for the three and six months ended June 30, 2017, respectively, relating to our $265.0 million principal amount of the Senior Notes.  The effective interest rate related to the Senior Notes, based on the proceeds net of discount and all issuance costs, is approximately 5.86%.

Other Income

Quarter and Year to Date Variance

Other Income (Loss) for the three and six months ended June 30, 2017 was $(0.4) million and $0.7 million, respectively, compared to $4.4 million and $7.0 million for the same periods in 2016, respectively. Other Income (Loss) primarily consists of realized and unrealized foreign exchange gains and losses. The gains in 2016 were mostly driven by the strengthening of the U.S. Dollar (“USD”) against the Great British pound (“GBP”).

Income Taxes

Quarter and Year to Date Variance

We recorded an Effective Tax Rate of 25.4% and 26.0% for the three and six months ended June 30, 2017, respectively, compared to 30.3% for the same periods in 2016. The decrease of 4.9 points and 4.3 points for the three and six months ended June 30, 2017 is mostly driven by the benefit of the vesting of stock at fair market value. The income tax provision has been computed based on our estimated interim annual Effective Tax Rate incorporating discrete items. Our Effective Tax Rate for the quarter and year to date differs from the federal tax rate of 35% primarily due to an excess tax benefit related to the vesting of stock compensation at fair market value, tax-exempt investment income and dividends received deduction.

28

Starting in the first quarter of 2017, excess tax benefits related to the vesting of stock compensation were recognized as a reduction to Income Tax Expense rather than as an increase to Additional Paid-In Capital as a result of the adoption of ASU 2016-09 (see Item 1, Note 1 to the Interim Consolidated Financial Statements for further information on the adoption of this standard).

Segment Results

The following tables summarize our Consolidated Financial Results by reporting segment for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	167,087		$	82,100		$	44,648		$	—		$	293,835
Net Losses and LAE		(105,270	)		(44,095	)		(27,745	)		—			(177,110	)
Commission Expenses		(20,460	)		(19,001	)		(8,970	)		258			(48,173	)
Other Operating Expenses		(33,140	)		(22,506	)		(5,120	)		—			(60,766	)
Other Underwriting Income (Expense)		100			—			169			(258	)		11
Underwriting Profit (Loss)	$	8,317		$	(3,502	)	$	2,982		$	—		$	7,797
Net Investment Income											22,265			22,265
Net Realized Gains											1,694			1,694
Interest Expense											(3,861	)		(3,861	)
Other Loss											(422	)		(422	)
Income (Loss) Before Income Taxes	$	8,317		$	(3,502	)	$	2,982		$	19,676		$	27,473
Income Tax Expense											(6,971	)		(6,971	)
Net Income													$	20,502
Losses and LAE Ratio		63.0	%		53.7	%		62.1	%					60.3	%
Commission Expense Ratio		12.2	%		23.1	%		20.1	%					16.4	%
Other Operating Expense Ratio (2)		19.8	%		27.5	%		11.1	%					20.6	%
Combined Ratio		95.0	%		104.3	%		93.3	%					97.3	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

29

	Three Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	152,384		$	77,833		$	37,775		$	—		$	267,992
Net Losses and LAE		(93,428	)		(48,066	)		(25,712	)		—			(167,206	)
Commission Expenses		(16,894	)		(16,821	)		(7,492	)		481			(40,726	)
Other Operating Expenses		(31,570	)		(23,043	)		(4,461	)		—			(59,074	)
Other Underwriting Income (Expense)		342			—			203			(481	)		64
Underwriting Profit (Loss)	$	10,834		$	(10,097	)	$	313		$	—		$	1,050
Net Investment Income											19,875			19,875
Net Realized Gains											1,810			1,810
Interest Expense											(3,858	)		(3,858	)
Other Income											4,366			4,366
Income (Loss) Before Income Taxes	$	10,834		$	(10,097	)	$	313		$	22,193		$	23,243
Income Tax Expense											(7,053	)		(7,053	)
Net Income													$	16,190
Losses and LAE Ratio		61.3	%		61.8	%		68.1	%					62.4	%
Commission Expense Ratio		11.1	%		21.6	%		19.8	%					15.2	%
Other Operating Expense Ratio (2)		20.5	%		29.6	%		11.3	%					22.0	%
Combined Ratio		92.9	%		113.0	%		99.2	%					99.6	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	331,091		$	166,186		$	82,689		$	—		$	579,966
Net Losses and LAE		(204,096	)		(94,800	)		(47,814	)		—			(346,710	)
Commission Expenses		(40,844	)		(38,234	)		(17,462	)		523			(96,017	)
Other Operating Expenses		(66,612	)		(42,299	)		(10,393	)		—			(119,304	)
Other Underwriting Income (Expense)		210			—			345			(523	)		32
Underwriting Profit (Loss)	$	19,749		$	(9,147	)	$	7,365		$	—		$	17,967
Net Investment Income											43,713			43,713
Net Realized Gains											1,650			1,650
Interest Expense											(7,722	)		(7,722	)
Other Income											625			625
Income (Loss) Before Income Taxes	$	19,749		$	(9,147	)	$	7,365		$	38,266		$	56,233
Income Tax Expense											(14,621	)		(14,621	)
Net Income													$	41,612
Losses and LAE Ratio		61.6	%		57.0	%		57.8	%					59.8	%
Commission Expense Ratio		12.3	%		23.0	%		21.1	%					16.6	%
Other Operating Expense Ratio (2)		20.1	%		25.5	%		12.2	%					20.5	%
Combined Ratio		94.0	%		105.5	%		91.1	%					96.9	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

30

	Six Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	300,724		$	155,841		$	75,785		$	—		$	532,350
Net Losses and LAE		(184,940	)		(88,476	)		(46,746	)		—			(320,162	)
Commission Expenses		(31,749	)		(32,176	)		(15,237	)		882			(78,280	)
Other Operating Expenses		(65,331	)		(44,814	)		(9,738	)		—			(119,883	)
Other Underwriting Income (Expense)		703			—			252			(882	)		73
Underwriting Profit (Loss)	$	19,407		$	(9,625	)	$	4,316		$	—		$	14,098
Net Investment Income											39,469			39,469
Net Realized Gains											3,407			3,407
Interest Expense											(7,716	)		(7,716	)
Other Income											6,906			6,906
Income (Loss) Before Income Taxes	$	19,407		$	(9,625	)	$	4,316		$	42,066		$	56,164
Income Tax Expense											(17,042	)		(17,042	)
Net Income													$	39,122
Losses and LAE Ratio		61.5	%		56.8	%		61.7	%					60.1	%
Commission Expense Ratio		10.6	%		20.6	%		20.1	%					14.7	%
Other Operating Expense Ratio (2)		21.4	%		28.8	%		12.5	%					22.6	%
Combined Ratio		93.5	%		106.2	%		94.3	%					97.4	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

U.S. Insurance

The following tables summarize our Underwriting Profit (Loss) by operating segment for our U.S. Insurance reporting segment for the three and six months ended June 30, 2017 and 2016:

	U.S. Insurance
	Three Months Ended June 30, 2017
amounts in thousands	Marine			P&C			Professional Liability			Total			%Change Total
Gross Written Premiums	$	41,687		$	187,492		$	28,007		$	257,186			5.4	%
Ceded Written Premiums		(19,451	)		(51,147	)		(3,259	)		(73,857	)		17.9	%
Net Written Premiums		22,236			136,345			24,748			183,329			1.1	%
Net Earned Premiums	$	21,812		$	121,226		$	24,049		$	167,087			9.6	%
Net Losses and LAE		(12,767	)		(77,858	)		(14,645	)		(105,270	)		12.7	%
Commission Expenses		(1,575	)		(15,232	)		(3,653	)		(20,460	)		21.1	%
Other Operating Expenses		(6,798	)		(21,645	)		(4,697	)		(33,140	)		5.0	%
Other Underwriting Income		82			9			9			100			(70.7	%)
Underwriting Profit	$	754		$	6,500		$	1,063		$	8,317			(23.2	%)
Losses and LAE Ratio		58.5	%		64.2	%		60.9	%		63.0	%
Commission Expense Ratio		7.2	%		12.6	%		15.2	%		12.2	%
Other Operating Expense Ratio (1)		30.8	%		17.8	%		19.5	%		19.8	%
Combined Ratio		96.5	%		94.6	%		95.6	%		95.0	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

31

	U.S. Insurance
	Three Months Ended June 30, 2016
amounts in thousands	Marine			P&C			Professional Liability			Total
Gross Written Premiums	$	46,187		$	168,654		$	29,083		$	243,924
Ceded Written Premiums		(18,540	)		(36,768	)		(7,310	)		(62,618	)
Net Written Premiums		27,647			131,886			21,773			181,306
Net Earned Premiums	$	24,921		$	110,212		$	17,251		$	152,384
Net Losses and LAE		(10,699	)		(72,172	)		(10,557	)		(93,428	)
Commission Expenses		(2,176	)		(12,821	)		(1,897	)		(16,894	)
Other Operating Expenses		(6,817	)		(20,049	)		(4,704	)		(31,570	)
Other Underwriting Income		152			178			12			342
Underwriting Profit	$	5,381		$	5,348		$	105		$	10,834
Losses and LAE Ratio		42.9	%		65.5	%		61.2	%		61.3	%
Commission Expense Ratio		8.7	%		11.6	%		11.0	%		11.1	%
Other Operating Expense Ratio (1)		26.8	%		18.0	%		27.2	%		20.5	%
Combined Ratio		78.4	%		95.1	%		99.4	%		92.9	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	U.S. Insurance
	Six Months Ended June 30, 2017
amounts in thousands	Marine			P&C			Professional Liability			Total			%Change Total
Gross Written Premiums	$	82,637		$	358,126		$	54,028		$	494,791			8.8	%
Ceded Written Premiums		(36,971	)		(89,345	)		(9,028	)		(135,344	)		15.6	%
Net Written Premiums		45,666			268,781			45,000			359,447			6.5	%
Net Earned Premiums	$	44,506		$	240,349		$	46,236		$	331,091			10.1	%
Net Losses and LAE		(26,542	)		(149,607	)		(27,947	)		(204,096	)		10.4	%
Commission Expenses		(3,047	)		(30,598	)		(7,199	)		(40,844	)		28.6	%
Other Operating Expenses		(13,619	)		(43,459	)		(9,534	)		(66,612	)		2.0	%
Other Underwriting Income		165			27			18			210			(70.1	%)
Underwriting Profit	$	1,463		$	16,712		$	1,574		$	19,749			1.8	%
Losses and LAE Ratio		59.6	%		62.2	%		60.4	%		61.6	%
Commission Expense Ratio		6.8	%		12.7	%		15.6	%		12.3	%
Other Operating Expense Ratio (1)		30.3	%		18.1	%		20.6	%		20.1	%
Combined Ratio		96.7	%		93.0	%		96.6	%		94.0	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

32

	U.S. Insurance
	Six Months Ended June 30, 2016
amounts in thousands	Marine			P&C			Professional Liability			Total
Gross Written Premiums	$	89,350		$	309,932		$	55,289		$	454,571
Ceded Written Premiums		(36,187	)		(67,275	)		(13,653	)		(117,115	)
Net Written Premiums		53,163			242,657			41,636			337,456
Net Earned Premiums	$	48,171		$	219,371		$	33,182		$	300,724
Net Losses and LAE		(20,474	)		(143,769	)		(20,697	)		(184,940	)
Commission Expenses		(3,658	)		(24,673	)		(3,418	)		(31,749	)
Other Operating Expenses		(14,189	)		(41,571	)		(9,571	)		(65,331	)
Other Underwriting Income		231			446			26			703
Underwriting Profit (Loss)	$	10,081		$	9,804		$	(478	)	$	19,407
Losses and LAE Ratio		42.5	%		65.5	%		62.4	%		61.5	%
Commission Expense Ratio		7.6	%		11.2	%		10.3	%		10.6	%
Other Operating Expense Ratio (1)		29.0	%		18.8	%		28.7	%		21.4	%
Combined Ratio		79.1	%		95.5	%		101.4	%		93.5	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

Gross Written Premiums

Quarter to Date Variance

Gross Written Premiums increased $13.3 million for the three months ended June 30, 2017 as compared to the same period in 2016 driven by an $18.8 million increase in our P&C operating segment, partially offset by decreases in our Marine and Professional Liability operating segments of $4.5 million and $1.1 million, respectively.

The increase in our P&C operating segment was driven by increases in our Other P&C, Environmental and Excess Casualty divisions. The increase in our Other P&C division was driven by new business production in our Auto product with strong rates on renewals, an increase in our Property product driven by new business production, and new product initiatives. The increase in our Environmental division was attributable to new business with increased opportunities in the market. The increase in our Excess Casualty division was primarily driven by increased renewals and favorable rate changes.

The decrease in our Marine operating segment was largely related to our decision to exit certain Hull and War products and the renewal of certain business now being assigned to our Int’l Insurance reporting segment. These decreases were partially offset by new business in our Craft product and increased retention on our Cargo product.

The decrease in our Professional Liability operating segment was primarily due to lower renewals from business not meeting our underwriting pricing requirements and the impact of a challenging rate environment.

Average renewal premium rates for our U.S. Insurance reporting segment for the three months ended June 30, 2017 increased 1.7%, driven by increases of 2.2% and 1.2% within our P&C and Marine operating segments, respectively.

Year to Date Variance

Gross Written Premiums increased $40.2 million for the six months ended June 30, 2017 as compared to the same period in 2016 driven by a $48.2 million increase in our P&C operating segment, partially offset by decreases in our Marine and Professional Liability operating segments of $6.7 million and $1.3 million, respectively.

The increase in our P&C operating segment was primarily driven by increases in our Other P&C, Excess Casualty and Environmental divisions, partially offset by a decrease in our Primary Casualty division. The increase in our Other P&C division was largely driven by new business production in our Auto product with strong rates on renewals, an increase in our Property product driven by new business production, and new product initiatives. The increase in our Excess Casualty division was primarily attributable to an increase in our Specialty Wholesale Excess Casualty product related to increases in construction project coverage recorded in the first quarter of 2017. The increase in our Environmental division was attributable to new business with increased opportunities in the market. A partially offsetting decrease in our Primary Casualty division was attributable to nonrenewals of low performing accounts.

33

The decrease in our Marine operating segment was largely related to our decision to exit certain Hull and War products and the renewal of certain business now being assigned to our Int’l Insurance reporting segment.

The decrease in our Professional Liability operating segment was attributable to the same drivers as the quarter to date variance.

Average renewal premium rates for our U.S. Insurance reporting segment for the six months ended June 30, 2017 increased 1.3%, driven by increases of 1.6%, 1.0% and 0.2% within our P&C, Marine and Professional Liability operating segments, respectively.

Ceded Written Premiums

Quarter and Year to Date Variances

Ceded Written Premiums were $73.9 million, resulting in a retention ratio of 71.3% of Net Written Premiums to Gross Written Premiums, and $135.3 million, resulting in a retention ratio of 72.6%, for the three and six months ended June 30, 2017, respectively. This compares to $62.6 million, resulting in a retention ratio of 74.3%, and $117.1 million, resulting in a retention ratio of 74.2%, for the three and six months ended June 30, 2016, respectively. The decrease in the retention ratio for both periods was driven by our P&C operating segment, partially offset by an increase in the retention ratio for our Professional Liability operating segment.

The decrease in our P&C operating segment’s retention ratio was the result of proportional reinsurance on our Property product purchased during the second quarter of 2017.

The increase in our Professional Liability operating segment’s retention ratio was attributable to a reduction in proportional reinsurance coverage that supports our D&O business and the impact of a favorable ceded premium adjustment on our E&O business.

Net Earned Premiums

Quarter and Year to Date Variances

Net Earned Premiums increased $14.7 million and $30.4 million for the three and six months ended June 30, 2017, respectively, as compared to the same periods in 2016 primarily due to growth within our P&C operating segment and recent reductions to the level of proportional reinsurance within our Professional Liability operating segment. These increases to Net Earned Premiums were partially offset by increased proportional reinsurance on our Property business and a decrease in the amount of premium written in our Marine operating segment.

Net Losses and LAE

The Net Losses and LAE reserves as of June 30, 2017 and December 31, 2016 are as follows:

	U.S. Insurance
	As of June 30, 2017								As of December 31, 2016
amounts in thousands	Marine		P&C		Professional Liability		Total		Marine		P&C		Professional Liability		Total		Total % Change
Case Reserves	$	56,618	$	185,454	$	28,417	$	270,489	$	56,701	$	201,368	$	24,555	$	282,624		(4.3	%)
IBNR Reserves		48,212		644,771		74,481		767,464		54,259		603,509		70,559		728,327		5.4	%
Total	$	104,830	$	830,225	$	102,898	$	1,037,953	$	110,960	$	804,877	$	95,114	$	1,010,951		2.7	%

The following tables present the impact of RRPs and Reserve Releases or (Development/Strengthening) on our Net Losses and LAE Ratio for the three and six months ended June 30, 2017 and 2016:

	U.S. Insurance
	Three Months Ended June 30, 2017												Three Months Ended June 30, 2016
							Professional												Professional						Point
	Marine			P&C			Liability			Total			Marine			P&C			Liability			Total			Change
Reported Net Losses and LAE Ratio		58.5	%		64.2	%		60.9	%		63.0	%		42.9	%		65.5	%		61.2	%		61.3	%		1.7
RRPs		0.0	%		(0.1	%)		0.0	%		(0.1	%)		(1.0	%)		0.0	%		0.0	%		(0.2	%)		0.1
Additional Net Current AY Reserve    Release/(Development)		0.0	%		(2.1	%)		0.0	%		(1.6	%)		0.0	%		(1.3	%)		0.0	%		(1.0	%)		(0.6	)
Net Prior AY Reserve    Release/(Strengthening)		(1.4	%)		0.0	%		0.0	%		(0.2	%)		15.7	%		0.0	%		0.0	%		2.6	%		(2.8	)
Adjusted Net Losses and LAE Ratio		57.1	%		62.0	%		60.9	%		61.1	%		57.6	%		64.2	%		61.2	%		62.7	%		(1.6	)

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	U.S. Insurance
	Six Months Ended June 30, 2017												Six Months Ended June 30, 2016
							Professional												Professional						Point
	Marine			P&C			Liability			Total			Marine			P&C			Liability			Total			Change
Reported Net Losses and LAE Ratio		59.6	%		62.2	%		60.4	%		61.6	%		42.5	%		65.5	%		62.4	%		61.5	%		0.1
RRPs		(0.6	%)		(0.1	%)		0.0	%		(0.1	%)		(0.3	%)		0.0	%		0.0	%		(0.1	%)		0.0
Additional Net Current AY Reserve    Release/(Development)		0.0	%		(1.1	%)		0.0	%		(0.8	%)		0.0	%		(0.7	%)		0.0	%		(0.5	%)		(0.3	)
Net Prior AY Reserve    Release/(Strengthening)		(2.0	%)		0.5	%		0.0	%		0.1	%		15.9	%		(0.5	%)		0.0	%		2.2	%		(2.1	)
Adjusted Net Losses and LAE Ratio		57.0	%		61.5	%		60.4	%		60.8	%		58.1	%		64.3	%		62.4	%		63.1	%		(2.3	)

Quarter to Date Variance

For the three months ended June 30, 2017, our Reported Net Losses and LAE Ratio increased 1.7 points as compared to the same period in 2016 driven by our Marine operating segment, partially offset by decreases in our P&C and Professional Liability operating segments.

The Reported Net Losses and LAE Ratio for our Marine operating segment increased 15.6 points as compared to the same period in 2016, primarily due to $0.3 million of Net Prior AY reserve strengthening for the three months ended June 30, 2017 compared to $4.0 million of Net Prior AY reserve releases due to better than expected loss emergence for the same period in 2016. After adjusting for Net Prior AY Reserve Release/(Strengthening) and RRPs, the Adjusted Net Losses and LAE Ratio for the three months ended June 30, 2017 was similar to same period in 2016.

The Reported Net Losses and LAE Ratio for our P&C operating segment decreased 1.3 points as compared to the same period in 2016. The three months ended June 30, 2017 was impacted by $2.6 million of Additional Net Current AY Reserve Development driven by losses in our Property product as compared to $1.5 million of development reported for the same period in 2016 related to our Energy & Engineering product. After adjusting for the Net Current AY Reserve Development and RRPs, the Adjusted Net Losses and LAE Ratio decreased 2.2 points as compared to the same period in 2016 in response to favorable performance across certain divisions, coupled with changes in the mix of business.

The Reported Net Losses and LAE Ratio for our Professional Liability operating segment decreased as compared to the same period in 2016, primarily due to changes in the mix of business.

Year to Date Variance

For the six months ended June 30, 2017, our Reported Net Losses and LAE Ratio increased 0.1 points as compared to the same period in 2016 driven by our Marine operating segment, partially offset by decreases in our P&C and Professional Liability operating segments.

The Reported Net Losses and LAE Ratio for our Marine operating segment increased 17.1 points as compared to the same period in 2016, primarily due to $0.9 million of Net Prior AY reserve strengthening for the six months ended June 30, 2017 compared to $7.7 million of Net Prior AY reserve releases due to better than expected loss emergence for the same period in 2016. After adjusting for Net Prior AY Reserve Release/(Strengthening) and RRPs, the Adjusted Net Losses and LAE Ratio decreased 1.1 points as compared to the same period in 2016 in response to favorable performance within certain products.

The Reported Net Losses and LAE Ratio for our P&C operating segment decreased 3.3 points as compared to the same period in 2016. This was due in part to $1.1 million of Net Prior AY Reserve Release related to better than expected loss emergence within our Environmental and Excess Casualty divisions for the six months ended June 30, 2017 compared to $1.0 million of Net Prior AY Reserve Strengthening related to our Primary Casualty division for the same period in 2016. Partially offsetting the decrease to the Reported Net Losses and LAE Ratio was the impact of $2.6 million of Additional Net Current AY Reserve Development related to losses in our Property product during the six months ended June 30, 2017 compared to $1.5 million related to our Energy & Engineering product for the same period in 2016. After adjusting for the Net Prior AY Reserve Release/(Strengthening), Additional Net Current AY Reserve Development and RRPs, the Adjusted Net Losses and LAE Ratio decreased 2.8 points as compared to the same period in 2016 in response to favorable performance across certain divisions, coupled with changes in the mix of business.

The Reported Net Losses and LAE Ratio for our Professional Liability operating segment decreased 2.0 points as compared to the same period in 2016, primarily due to changes in the mix of business.

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Commission Expenses

Quarter and Year to Date Variances

Our Commission Expense Ratio for the three and six months ended June 30, 2017 increased 1.1 points and 1.7 points, respectively, as compared to the same period in 2016. The increases were primarily driven by increases in our P&C and Professional Liability operating segments.

Our P&C operating segment’s Commission Expense Ratio increased due to less ceding commission benefits resulting from reductions to our proportional reinsurance coverage on our Excess Casualty business, partially offset by slightly greater ceding commission income from the new proportional reinsurance on our Property product purchased during the second quarter of 2017.

The increase in our Professional Liability operating segment’s Commission Expense Ratio was largely driven by the impact of reducing proportional reinsurance and the related ceding commission benefits.

Other Operating Expenses

Quarter and Year to Date Variances

Other Operating Expenses for the three and six months ended June 30, 2017 increased $1.6 million and $1.3 million, respectively, as compared to the same periods in 2016, primarily due to costs associated with new business initiatives, partially offset by a decrease in project specific information technology expenses.  

Int’l Insurance

The following tables summarize our Underwriting Profit (Loss) by operating segment for our Int’l Insurance reporting segment for the three and six months ended June 30, 2017 and 2016: 

	Int'l Insurance
	Three Months Ended June 30, 2017
amounts in thousands	Marine			P&C			Professional Liability			Total			%Change Total
Gross Written Premiums	$	49,597		$	46,663		$	34,933		$	131,193			(3.3	%)
Ceded Written Premiums		(12,536	)		(20,362	)		(10,911	)		(43,809	)		4.5	%
Net Written Premiums		37,061			26,301			24,022			87,384			(6.9	%)
Net Earned Premiums	$	39,525		$	23,337		$	19,238		$	82,100			5.5	%
Net Losses and LAE		(23,848	)		(8,867	)		(11,380	)		(44,095	)		(8.3	%)
Commission Expenses		(9,517	)		(4,577	)		(4,907	)		(19,001	)		13.0	%
Other Operating Expenses		(9,226	)		(7,946	)		(5,334	)		(22,506	)		(2.3	%)
Underwriting Profit (Loss)	$	(3,066	)	$	1,947		$	(2,383	)	$	(3,502	)		(65.3	%)
Losses and LAE Ratio		60.3	%		38.0	%		59.2	%		53.7	%
Commission Expense Ratio		24.1	%		19.6	%		25.5	%		23.1	%
Other Operating Expense Ratio (1)		23.4	%		34.1	%		27.7	%		27.5	%
Combined Ratio		107.8	%		91.7	%		112.4	%		104.3	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

36

	Int'l Insurance
	Three Months Ended June 30, 2016
amounts in thousands	Marine			P&C			Professional Liability			Total
Gross Written Premiums	$	41,147		$	63,002		$	31,591		$	135,740
Ceded Written Premiums		(9,554	)		(24,465	)		(7,891	)		(41,910	)
Net Written Premiums		31,593			38,537			23,700			93,830
Net Earned Premiums	$	36,096		$	23,815		$	17,922		$	77,833
Net Losses and LAE		(17,021	)		(21,878	)		(9,167	)		(48,066	)
Commission Expenses		(8,361	)		(5,150	)		(3,310	)		(16,821	)
Other Operating Expenses		(8,698	)		(9,065	)		(5,280	)		(23,043	)
Underwriting Profit (Loss)	$	2,016		$	(12,278	)	$	165		$	(10,097	)
Losses and LAE Ratio		47.2	%		91.9	%		51.2	%		61.8	%
Commission Expense Ratio		23.2	%		21.6	%		18.5	%		21.6	%
Other Operating Expense Ratio (1)		24.0	%		38.1	%		29.4	%		29.6	%
Combined Ratio		94.4	%		151.6	%		99.1	%		113.0	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Int'l Insurance
	Six Months Ended June 30, 2017
amounts in thousands	Marine			P&C			Professional Liability			Total			% Change Total
Gross Written Premiums	$	118,430		$	87,031		$	67,592		$	273,053			(2.4	%)
Ceded Written Premiums		(23,462	)		(50,008	)		(16,932	)		(90,402	)		17.6	%
Net Written Premiums		94,968			37,023			50,660			182,651			(10.0	%)
Net Earned Premiums	$	77,020		$	45,517		$	43,649		$	166,186			6.6	%
Net Losses and LAE		(44,449	)		(24,736	)		(25,615	)		(94,800	)		7.1	%
Commission Expenses		(19,058	)		(8,319	)		(10,857	)		(38,234	)		18.8	%
Other Operating Expenses		(17,666	)		(14,369	)		(10,264	)		(42,299	)		(5.6	%)
Underwriting Loss	$	(4,153	)	$	(1,907	)	$	(3,087	)	$	(9,147	)		(5.0	%)
Losses and LAE Ratio		57.7	%		54.3	%		58.7	%		57.0	%
Commission Expense Ratio		24.7	%		18.3	%		24.9	%		23.0	%
Other Operating Expense Ratio (1)		23.0	%		31.6	%		23.5	%		25.5	%
Combined Ratio		105.4	%		104.2	%		107.1	%		105.5	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

37

	Int'l Insurance
	Six Months Ended June 30, 2016
amounts in thousands	Marine			P&C			Professional Liability			Total
Gross Written Premiums	$	113,095		$	107,048		$	59,740		$	279,883
Ceded Written Premiums		(20,643	)		(41,694	)		(14,544	)		(76,881	)
Net Written Premiums		92,452			65,354			45,196			203,002
Net Earned Premiums	$	74,952		$	45,024		$	35,865		$	155,841
Net Losses and LAE		(37,109	)		(33,094	)		(18,273	)		(88,476	)
Commission Expenses		(17,766	)		(7,925	)		(6,485	)		(32,176	)
Other Operating Expenses		(17,140	)		(17,773	)		(9,901	)		(44,814	)
Underwriting Profit (Loss)	$	2,937		$	(13,768	)	$	1,206		$	(9,625	)
Losses and LAE Ratio		49.5	%		73.5	%		50.9	%		56.8	%
Commission Expense Ratio		23.7	%		17.6	%		18.1	%		20.6	%
Other Operating Expense Ratio (1)		22.9	%		39.5	%		27.6	%		28.8	%
Combined Ratio		96.1	%		130.6	%		96.6	%		106.2	%

(1) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

Gross Written Premiums

Quarter to Date Variance

Gross Written Premiums decreased $4.5 million for the three months ended June 30, 2017 compared to the same period in 2016, driven by a decline in our P&C operating segment of $16.3 million, partially offset by increases in our Marine and Professional Liability operating segments of $8.5 million and $3.3 million, respectively.

The decrease in our P&C operating segment was primarily driven by a decline in our Property and Energy & Engineering divisions, partially offset by an increase in our Other P&C division. The decrease in our Property division was primarily related to strategic actions taken to exit our North American Property business. Our Energy & Engineering division decrease was primarily related to the impact of challenging market conditions on our Offshore Energy products resulting in adverse rate changes and lower premium volume. The increase in our Other P&C division was primarily attributable to growth in our Political Violence & Terrorism product.

The increase in our Marine operating segment was largely due to an increase in our Transport product related to a favorable premium adjustment, growth in our Cargo and Hull products attributable to new business and an increase in our Craft product related to the renewal of certain business previously assigned to our U.S. Insurance reporting segment now attributed to the Int’l Insurance reporting segment. These increases were partially offset by a decrease in our Energy Liability product due to reduced exposure based premium and restructured programs resulting from a lack of activity in this market.

The increase in our Professional Liability operating segment was primarily driven by new business production in our E&O and Other Professional Liability divisions.

Average renewal premium rates for our Int’l Insurance reporting segment for the three months ended June 30, 2017 decreased 2.7% compared to the same period in 2016, driven by decreases of 3.6%, 2.5% and 2.3% in our Professional Liability, P&C and Marine operating segments, respectively.

Year to Date Variance

Gross Written Premiums decreased $6.8 million for the six months ended June 30, 2017 compared to the same period in 2016, driven by a decline in our P&C operating segment of $20.0 million, partially offset by increases in our Professional Liability and Marine operating segments of $7.9 million and $5.3 million, respectively.

The decrease in our P&C operating segment was attributable to the same drivers as the quarter to date variance.

The increase in our Professional Liability operating segment was attributable to the same drivers as the quarter to date variance.

38

The increase in our Marine operating segment was largely due to growth in our Hull and Protection & Indemnity (“P&I”) products driven by new business, an increase in our Craft product related to renewal of certain business previously assigned to our U.S. Insurance reporting segment now attributed to the Int’l Insurance reporting segment, and an increase in our Transport product related to a favorable premium adjustment. These increases were partially offset by declines in our Marine Liability, Cargo, and Specie products related to non-renewals, reduced line share and adjustments resulting from reduced exposures.

Average renewal premium rates for our Int’l Insurance reporting segment for the six months ended June 30, 2017 decreased 2.5% compared to the same period in 2016, driven by decreases of 3.6%, 2.7% and 1.8% in our P&C, Professional Liability and Marine operating segments, respectively.

Ceded Written Premiums

Quarter to Date Variance

Ceded Written Premiums were $43.8 million, resulting in a retention ratio of 66.6% of Net Written Premiums to Gross Written Premiums for the three months ended June 30, 2017 compared to $41.9 million and 69.1%, for the same period in 2016. All three operating segments experienced reductions in their retention ratios with the largest impact in our Professional Liability and P&C operating segments.

The decrease in the retention rate of our Professional Liability operating segment was primarily due to an excess of loss premium adjustment on our E&O business.

The reduction in our P&C operating segment was primarily driven by a reinsurance arrangement to cede 100% of the unexpired risk on our North American Property business effective January 1, 2017 as part of our strategic actions taken to exit this book of business, partially offset by changes in our proportional reinsurance programs impacting certain products, most notably in Offshore Energy.

Year to Date Variance

Ceded Written Premiums were $90.4 million, or a retention ratio of 66.9%, for the six months ended June 30, 2017 compared to $76.9 million, or 72.5%, for the same period in 2016. The reduction in the retention ratio was primarily driven by our P&C operating segment.

The reduction in our P&C operating segment was attributable to the same drivers as the quarter to date variance.

Net Earned Premiums

Quarter and Year to Date Variances

Net Earned Premiums increased $4.3 million and $10.3 million for the three and six months ended June 30, 2017, respectively, as compared to the same periods in 2016 largely driven by recent growth in our Professional Liability and Marine operating segments. The increase from growth in our Professional Liability operating segment was partially offset by a ceded excess of loss premium adjustment in our E&O business.

Our P&C operating segment’s Net Earned Premium was negatively impacted by increased cessions and lower premium volume related to our strategic actions taken to exit our North American Property business. However, this was largely offset by changes to our proportional reinsurance programs on various products within this operating segment reducing ceded earned premium for these products.

Net Losses and LAE

The Net Losses and LAE Reserves as of  June 30, 2017 and December 31, 2016 are as follows:

	Int'l Insurance
	As of June 30, 2017								As of December 31, 2016
amounts in thousands	Marine		P&C		Professional Liability		Total		Marine		P&C		Professional Liability		Total		Total% Change
Case Reserves	$	168,472	$	74,719	$	40,838	$	284,029	$	163,124	$	66,496	$	30,106	$	259,726		9.4	%
IBNR Reserves		33,258		23,213		71,095		127,566		36,118		18,192		70,103		124,413		2.5	%
Total	$	201,730	$	97,932	$	111,933	$	411,595	$	199,242	$	84,688	$	100,209	$	384,139		7.1	%

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The following tables present the impact of RRPs and Reserve Releases or (Development/Strengthening) on our Net Losses and LAE Ratio for the three and six months ended June 30, 2017 and 2016:

	Int'l Insurance
	Three Months Ended June 30, 2017												Three Months Ended June 30, 2016
							Professional												Professional						Point
	Marine			P&C			Liability			Total			Marine			P&C			Liability			Total			Change
Reported Net Losses and LAE Ratio		60.3	%		38.0	%		59.2	%		53.7	%		47.2	%		91.9	%		51.2	%		61.8	%		(8.1	)
RRPs		(0.0	%)		(0.2	%)		0.0	%		(0.1	%)		(0.5	%)		(6.8	%)		0.0	%		(1.7	%)		1.6
Additional Net Current AY Reserve    Release/(Development)		(4.8	%)		(2.2	%)		0.0	%		(2.9	%)		(4.6	%)		(43.6	%)		0.0	%		(16.1	%)		13.2
Net Prior AY Reserve    Release/(Strengthening)		(8.7	%)		5.6	%		(13.5	%)		(5.8	%)		9.1	%		0.2	%		0.0	%		4.2	%		(10.0	)
Adjusted Net Losses and LAE Ratio		46.8	%		41.2	%		45.7	%		44.9	%		51.2	%		41.7	%		51.2	%		48.2	%		(3.3	)

	Int'l Insurance
	Six Months Ended June 30, 2017												Six Months Ended June 30, 2016
							Professional												Professional						Point
	Marine			P&C			Liability			Total			Marine			P&C			Liability			Total			Change
Reported Net Losses and LAE Ratio		57.7	%		54.3	%		58.7	%		57.0	%		49.5	%		73.5	%		50.9	%		56.8	%		0.2
RRPs		(0.0	%)		0.7	%		0.0	%		0.2	%		(0.3	%)		(3.0	%)		0.0	%		(0.8	%)		1.0
Additional Net Current AY Reserve    Release/(Development)		(7.0	%)		(2.3	%)		0.0	%		(3.9	%)		(2.2	%)		(27.8	%)		0.0	%		(9.3	%)		5.4
Net Prior AY Reserve    Release/(Strengthening)		(4.1	%)		(7.8	%)		(10.8	%)		(6.9	%)		4.6	%		(2.0	%)		0.0	%		1.6	%		(8.5	)
Adjusted Net Losses and LAE Ratio		46.6	%		44.9	%		47.9	%		46.4	%		51.6	%		40.7	%		50.9	%		48.3	%		(1.9	)

Quarter to Date Variance

For the three months ended June 30, 2017, our Reported Net Losses and LAE Ratio decreased 8.1 points as compared to the same period in 2016 driven by a decrease in this ratio for our P&C operating segment, partially offset by increases in our Marine and Professional Liability operating segments.

Our P&C operating segment’s Reported Net Losses and LAE Ratio for the three months ended June 30, 2017 decreased 53.9 points as compared to the same period in 2016, primarily due to $11.2 million of Additional Net Current AY Reserve Development in 2016 attributable to the Alberta Wildfires, Taiwan Earthquake and other large loss events compared to $0.5 million in 2017. The three months ended June 30, 2016 was also impacted by $1.9 million of RRPs, compared to $0.1 million for the same period in 2017. Additionally, the three months ended June 30, 2017 recognized $1.3 million of Net Prior AY Reserve Releases related to better than expected loss emergence on our Offshore Energy business, partially offset by attritional loss development within our Property division compared to an immaterial amount of Net Prior AY Reserve Releases for the same period in 2016. After adjusting for Additional Net Current AY Reserve Development, RRPs, and Net Prior AY Reserve Releases, the Adjusted Net Losses and LAE Ratio for the three months ended June 30, 2017 was similar to the same period in 2016.

Our Marine operating segment’s Reported Net Losses and LAE Ratio for the three months ended June 30, 2017 increased 13.1 points as compared to the same period in 2016. This was driven in part by $3.5 million of Net Prior AY Reserve Strengthening for the three months ended June 30, 2017 due to attritional loss development primarily related to our Specie product, compared to $3.3 million Net Prior AY Reserve Releases for the same period in 2016 due to better than expected loss emergence. Additionally, the three months ended June 30, 2017 recognized $1.9 million of Additional Net Current AY Reserve Development related to loss activity within our P&I product, compared to $1.7 million for the same period in 2016 related to the Ecuador Earthquake. After adjusting for Net Prior AY Reserve (Strengthening)/Releases, Additional Net Current AY Reserve Development and RRPs, the Adjusted Net Losses and LAE Ratio decreased 4.4 points for the three months ended June 30, 2017 as compared to the same period in 2016 due to changes in the mix of business.

Our Professional Liability operating segment’s Reported Net Losses and LAE Ratio for the three months ended June 30, 2017 increased 8.0 points as compared to the same period in 2016, primarily due to $2.6 million of Net Prior AY Reserve Strengthening during the three months ended June 30, 2017 related to attritional loss development on our D&O and E&O business. After adjusting for Net Prior AY Reserve Strengthening, the Adjusted Net Losses and LAE Ratio decreased 5.5 points for the three months ended June 30, 2017 as compared to the same period in 2016 due to favorable performance across certain key divisions, coupled with changes in the mix of business.

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Year to Date Variance

For the six months ended June 30, 2017, our Reported Net Losses and LAE Ratio was similar to the same period in 2016 with a decrease in our P&C operating segment, offset by increases in our Marine and Professional Liability operating segments.

Our P&C operating segment’s Reported Net Losses and LAE Ratio for the six months ended June 30, 2017 decreased 19.2 points as compared to the same period in 2016, primarily due to $13.0 million of Additional Net Current AY Reserve Development in 2016 attributable to the Alberta Wildfires, Taiwan Earthquake and other large loss events compared to $1.0 million of Additional Net Current AY Reserve Development in 2017. Additionally, the six months ended June 30, 2016 was impacted by $1.9 million of RRPs, compared to a $0.6 million RRP benefit in 2017. Partially offsetting these decreases to the ratio, the six months ended June 30, 2017 had Net Prior AY Reserve Strengthening of $3.5 million attributable to attritional loss development within our Property division primarily resulting from late reported claims, partially offset by favorable development on our Offshore Energy business compared to $0.9 million for the same period in 2016 attributable to attritional loss development. After adjusting for Additional Net Current AY Reserve Development, RRPs, and Net Prior AY Reserve Strengthening, the Adjusted Net Losses and LAE Ratio increased 4.2 points primarily due to the impact of additional ceded protection on Net Earned Premiums.

Our Marine operating segment’s Reported Net Losses and LAE Ratio for the six months ended June 30, 2017 increased 8.2 points as compared to the same period in 2016. This was driven in part by $3.1 million of Net Prior AY Reserve Strengthening attributable to attritional loss development primarily related to our Specie product for the six months ended June 30, 2017 compared to $3.4 million of Net Prior AY Reserve Releases due to better than expected loss emergence for the same period in 2016. Additionally, the six months ended June 30, 2017 recognized $5.4 million of Additional Net Current AY Reserve Development related to attritional loss development compared to $1.7 million for the same period in 2016 related to the Ecuador Earthquake. After adjusting for Net Prior AY Reserve Releases/(Strengthening), Additional Net Current AY Reserve Development and RRPs, the Adjusted Net Losses and LAE Ratio decreased 5.0 points as compared to the same period in 2016 due to changes in the mix of business.

Our Professional Liability operating segment’s Reported Net Losses and LAE Ratio for the six months ended June 30, 2017 increased 7.8 points as compared to the same period in 2016, primarily due to $4.7 million of Net Prior AY Reserve Strengthening during the six months ended June 30, 2017 related to attritional loss development on our D&O and E&O business. After adjusting for Net Prior AY Reserve Strengthening, the Adjusted Net Losses and LAE Ratio decreased 3.0 points for the six months ended June 30, 2017 as compared to the same period in 2016 due to favorable performance across certain key divisions, coupled with changes in the mix of business.

Commission Expenses

Quarter to Date Variance

Our Commission Expense Ratio for the three months ended June 30, 2017 increased 1.5 points as compared to the same period in 2016. The increase was driven by our Professional Liability and Marine operating segments partially offset by a decrease in our P&C operating segment.

The increase in our Professional Liability operating segment’s Commission Expense Ratio was due to increased gross costs primarily in our E&O division, the impact of a ceded excess of loss premium adjustment on our E&O division, changes in the mix of business with increased growth in our Warranties and Indemnity product which attracts a higher commission rate, and an increase in profit commission expense.

Our Marine operating segment’s Commission Expense Ratio increased due to generally higher gross acquisition costs across most products.

The decrease in our P&C operating segment’s Commission Expense Ratio was due to the impact of increased cessions on our Property business, partially offset by an increase in our Political Violence and Terrorism product, which has a higher commission rate, and an increase in profit commissions.

Year to Date Variance

Our Commission Expense Ratio for the six months ended June 30, 2017 increased 2.4 points as compared to the same period in 2016, driven by increases in all three operating segments.

Our Professional Liability operating segment’s Commission Expense Ratio increased due to the same drivers as the quarter to date variance.

Our Marine operating segment’s Commission Expense Ratio increased due to the same drivers as the quarter to date variance.

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Our P&C operating segment’s Commission Expense Ratio increased primarily due to an increase in profit commissions and an increase in our Political Violence and Terrorism product, which has a higher commission rate, largely offset by the impact of increased cessions on our Property business.

Other Operating Expenses

Quarter and Year to Date Variances

For the three and six months ended June 30, 2017, Other Operating Expenses decreased $0.5 million and $2.5 million, respectively, as compared to the same periods in 2016 due to reduced employee expenses and favorable foreign exchange rates, partially offset by increased Lloyd’s expenses.

GlobalRe

The following tables summarize our Underwriting Profit for our GlobalRe reporting segment for the three and six months ended June 30, 2017 and 2016:

	GlobalRe
	Three Months Ended June 30,
amounts in thousands	2017			2016			% Change
Gross Written Premiums	$	63,800		$	32,901			93.9	%
Ceded Written Premiums		(1,231	)		(1,502	)		(18.1	%)
Net Written Premiums		62,569			31,399			99.3	%
Net Earned Premiums	$	44,648		$	37,775			18.2	%
Net Losses and LAE		(27,745	)		(25,712	)		7.9	%
Commission Expenses		(8,970	)		(7,492	)		19.7	%
Other Operating Expenses		(5,120	)		(4,461	)		14.8	%
Other Underwriting Income		169			203			(16.7	%)
Underwriting Profit	$	2,982		$	313		NM
Losses and LAE Ratio		62.1	%		68.1	%
Commission Expense Ratio		20.1	%		19.8	%
Other Operating Expense Ratio (1)		11.1	%		11.3	%
Combined Ratio		93.3	%		99.2	%

NM - Percentage change not meaningful

(1) - Includes Other Operating Expenses and Other Underwriting Income.

	GlobalRe
	Six Months Ended June 30,
amounts in thousands	2017			2016			% Change
Gross Written Premiums	$	134,640		$	91,988			46.4	%
Ceded Written Premiums		(6,293	)		(6,091	)		3.3	%
Net Written Premiums		128,347			85,897			49.4	%
Net Earned Premiums	$	82,689		$	75,785			9.1	%
Net Losses and LAE		(47,814	)		(46,746	)		2.3	%
Commission Expenses		(17,462	)		(15,237	)		14.6	%
Other Operating Expenses		(10,393	)		(9,738	)		6.7	%
Other Underwriting Income		345			252			36.9	%
Underwriting Profit	$	7,365		$	4,316			70.7	%
Losses and LAE Ratio		57.8	%		61.7	%
Commission Expense Ratio		21.1	%		20.1	%
Other Operating Expense Ratio (1)		12.2	%		12.5	%
Combined Ratio		91.1	%		94.3	%

(1) - Includes Other Operating Expenses and Other Underwriting Income.

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Gross Written Premiums

Quarter To Date Variance

Gross Written Premiums increased $30.9 million for the three months ended June 30, 2017, compared to the same period in 2016, primarily due to $21.5 million of new business, increased renewal business and net favorable premium adjustments in our A&H product. Growth in our P&C business and expansion of our Professional Liability product to offer various assumed general, umbrella and auto liability business further contributed to new business growth period over period.

Year To Date Variance

Gross Written Premiums increased $42.7 million for the six months ended June 30, 2017, compared to the same period in 2016. The year to date increase was attributable to the same drivers as the quarter to date variance.

Ceded Written Premiums

Quarter and Year To Date Variances

Ceded Written Premiums were $1.2 million, resulting in a retention ratio of 98.1% of Net Written Premiums to Gross Written Premiums, and $6.3 million, resulting in a retention ratio of 95.3%, for the three and six months ended June 30, 2017, respectively. This compares to $1.5 million, resulting in a retention ratio of 95.4%, and $6.1 million, resulting in a retention ratio of 93.4%, for the three and six months ended June 30, 2016. The increase in the retention ratio for both periods was primarily due to changes in the mix of business with proportionately more A&H premium, which has 100% retention.

Net Earned Premiums

Quarter and Year To Date Variances

Net Earned Premiums for the three and six months ended June 30, 2017 increased $6.9 million for both periods as compared to the same periods in 2016, primarily due to growth in our P&C, Professional Liability, Surety and Agriculture products, partially offset by a lower volume of premium from our A&H products earning into 2017 compared to 2016 due to non-renewals.

Net Losses and LAE

The Net Losses and LAE Reserves as of June 30, 2017 and December 31, 2016 are as follows:

	GlobalRe
	As of
	June 30,		December 31,
amounts in thousands	2017		2016		% Change
Case Reserves	$	42,542	$	47,505		(10.4	%)
IBNR Reserves		71,373		67,856		5.2	%
Total	$	113,915	$	115,361		(1.3	%)

The following tables present the impact of RRPs and Reserve Releases or (Development/Strengthening) on our Net Losses and LAE Ratio for the three and six months ended June 30, 2017 and 2016: 

	GlobalRe
	Three Months Ended June 30,						Point
	2017			2016			Change
Reported Net Losses and LAE Ratio		62.1	%		68.1	%		(6.0	)
RRPs		0.9	%		(0.5	%)		1.4
Additional Net Current AY Reserve Release/(Development)		(5.6	%)		(17.2	%)		11.6
Net Prior AY Reserve Release/(Strengthening)		(6.8	%)		3.7	%		(10.5	)
Adjusted Net Losses and LAE Ratio		50.6	%		54.1	%		(3.5	)

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	GlobalRe
	Six Months Ended June 30,						Point
	2017			2016			Change
Reported Net Losses and LAE Ratio		57.8	%		61.7	%		(3.9	)
RRPs		0.6	%		0.3	%		0.3
Additional Net Current AY Reserve Release/(Development)		(4.1	%)		(9.4	%)		5.3
Net Prior AY Reserve Release/(Strengthening)		(4.8	%)		1.9	%		(6.7	)
Adjusted Net Losses and LAE Ratio		49.5	%		54.5	%		(5.0	)

Quarter To Date Variance

For the three months ended June 30, 2017, our Reported Net Losses and LAE Ratio decreased 6.0 points as compared to the same period in 2016. This was driven in part by $2.5 million of Additional Net Current AY Reserve Development for the three months ended June 30, 2017 attributable to weather-related losses, compared to $6.5 million for the same period in 2016, mostly related to large event losses including the Alberta Wildfires, Ecuador Earthquake and the Taiwan Earthquake. Additionally, the three months ended June 30, 2017 was impacted by a RRP benefit, compared to a RRP expense for the same period in 2016. Partially offsetting these decreases to the Reported Net Losses and LAE Ratio, the three months ended June 30, 2017 recognized $3.0 million of Net Prior AY Reserve Strengthening mostly related to the settlement of a large A&H claim, compared to $1.4 million of Net Prior AY Reserve Releases related to better than expected loss emergence in our Property and Professional Liability products for the same period in 2016. After adjusting for Additional Net Current AY Reserve Development, RRPs and Net Prior AY Reserve Releases/(Strengthening), the Adjusted Net Losses and LAE Ratio decreased 3.5 points due to changes in the mix of business.

Year To Date Variance

For the six months ended June 30, 2017, our Reported Net Losses and LAE Ratio decreased 3.9 points as compared to the same period in 2016. This was driven in part by $3.4 million of Additional Net Current AY Reserve Development for the six months ended June 30, 2017 due to weather-related losses, compared to $7.1 million for the same period in 2016, mostly related to large event losses including the Alberta Wildfires, Ecuador Earthquake and the Taiwan Earthquake. Partially offsetting the decrease in the Reported Net Losses and LAE Ratio, the six months ended June 30, 2017 recognized $3.9 million of Net Prior AY Reserve Strengthening related to the settlement of a large A&H claim, compared to $1.4 million of Net Prior AY Reserve Releases related to better than expected loss emergence in our Property and Professional Liability products for the same period in 2016. After adjusting for Additional Net Current AY Reserve Development, RRPs and Net Prior AY Reserve Releases/(Strengthening), the Adjusted Net Losses and LAE Ratio decreased 5.0 points due to changes in the mix of business.

Commission Expenses

Quarter To Date Variances

Our Commission Expense Ratio for the three months ended June 30, 2017 increased 0.3 points compared to the same period in 2016, due to changes in the mix of business, partially offset by lower profit commission expense in our A&H and Professional Liability products.

Year To Date Variance

Our Commission Expense Ratio for the six months ended June 30, 2017 increased 1.0 point compared to the same period in 2016. The year to date increase was attributable to the same drivers as the quarter to date variance.

Other Operating Expenses

Quarter and Year To Date Variances

Other Operating Expenses for the three and six months ended June 30, 2017 increased $0.7 million for both periods as compared to the same periods in 2016, primarily due to costs associated with new business initiatives.  

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Capital Resources and Liquidity

Capital Resources

Our capital resources consist of funds deployed or available to be deployed to support our business operations.  As of June 30, 2017 and December 31, 2016, our capital resources were as follows:

	As of
amounts in thousands	June 30, 2017			December 31, 2016
Senior Notes	$	263,806		$	263,728
Stockholders' Equity		1,244,168			1,178,188
Total Capitalization	$	1,507,974		$	1,441,916
Ratio of Debt to Total Capitalization		17.5	%		18.3	%

As part of our capital management program, we may seek to raise additional capital or may seek to return capital to our stockholders through share repurchases, cash dividends or other methods (or a combination of such methods).  Any such determination will be at the discretion of our Parent Company’s Board of Directors and will be dependent upon our profits, financial requirements and other factors, including legal restrictions, rating agency requirements, credit facility limitations and such other factors as our Board of Directors deems relevant.

We primarily rely upon dividends from our subsidiaries to meet our Parent Company’s obligations.  Our Parent Company’s cash obligations primarily consist of semi-annual (April and October) interest payments of $7.6 million on the Senior Notes.

NIC may pay dividends to our Parent Company out of its statutory earned surplus subject to statutory restrictions imposed under the New York insurance law.  As of June 30, 2017, the maximum amount available for the payment of dividends by NIC in 2017 without prior regulatory approval is $102.7 million.

NCUL, our wholly-owned corporate member at Lloyd’s, may pay dividends to our Parent Company up to the extent of available profits that have been distributed from the Syndicate.  As of June 30, 2017, that amount was $2.1 million (£ 1.6 million).

Senior Notes and Credit Facility

As of June 30, 2017, letters of credit with an aggregate face amount of 14.0 million Australian Dollars were outstanding under the credit facility with Barclays Bank PLC that we entered into on November 4, 2016 (the “Australian Facility”).

As of June 30, 2017, letters of credit with an aggregate face amount of $135.0 million and £60.0 million were outstanding under the credit facility with ING Bank N.V., London Branch, individually and as administrative agent for a syndicate of lenders, that we entered into on November 7, 2016 (the “Club Facility”), and we had an aggregate of $1.1 million of cash collateral posted.  

As of June 30, 2017, there were no letters of credit outstanding under the credit facility with ING Bank N.V., London Branch, we entered into on November 20, 2015 and amended on November 7, 2016 (the “Bilateral Facility”).

As of June 30, 2017, our Company was in compliance with all covenants for our Senior Notes, Australian Facility, Club Facility and Bilateral Facility.

Consolidated Cash Flows

We believe that the cash flow generated by the operating activities of our subsidiaries will provide sufficient funds for us to meet our liquidity needs over the next twelve months.  Beyond the next twelve months, cash flow available to us may be influenced by a variety of factors, including general economic conditions and conditions in the insurance and reinsurance markets, as well as fluctuations from year to year in claims experience.

We believe that we have adequately managed our cash flow requirements related to reinsurance recoveries from their positive cash flows and the use of available short-term funds when applicable.  However, there can be no assurances that we will be able to continue to adequately manage such recoveries in the future or that collection disputes or reinsurer insolvencies will not arise that could materially increase the collection time lags or result in recoverable write-offs causing additional incurred losses and liquidity constraints to our Company.  The payment of gross claims and related collections from reinsurers with respect to large losses could significantly impact our liquidity needs.  However, in general, we expect to collect our paid reinsurance recoverables under the terms described above.  

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Net cash Provided by Operating Activities was $72.9 million for the six months ended June 30, 2017 compared to $118.5 million for the same period in 2016. Operating cash flows decreased from the prior year due to increased claim payments in our international operations as well as higher estimated federal tax payments in the current year due to less overpayment carryforwards which were used to offset tax payments in the prior year.  Operating cash flows were positively impacted by increased premium collections associated with top line growth and higher investment income collections due to growth of invested assets and higher investment yields.

Net Cash Used in Investing Activities was $55.0 million for the six months ended June 30, 2017 compared to $54.1 million for the comparable period in 2016.  Fluctuations in cash used in investing activities are primarily due to changes in operating cash flows and the associated ongoing management of our investment portfolio.

Net Cash Used in Financing Activities was $15.1 million for the six months ended June 30, 2017 compared to $4.0  million for the same period in 2016. The increase in cash used in financing activities is primarily related to increased tax withholding payments on vested stock compensation in 2017 as compared with 2016. To a lesser extent 2017 financing cash flows were impacted by the institution of a quarterly stockholder dividend which was paid for the first time in the third quarter of 2016.

Investments

Our investment portfolio is invested primarily in publicly traded, investment grade, fixed income securities with an average credit quality of “AA-/Aa3” as rated by S&P or Moody’s.  As of June 30, 2017, our portfolio had a duration of 3.8 years.  Management periodically projects cash flow of the investment portfolio and other sources in order to maintain the appropriate levels of liquidity in an effort to ensure our ability to satisfy claims.  As of June 30, 2017 and December 31, 2016, all Fixed Maturities and Equity Securities held by us were classified as available-for-sale.

The portfolio is externally managed by independent, professional investment managers and is broadly diversified across geographies, sectors, and issuers. The primary objectives are to maximize total investment return in the context of preserving and enhancing stockholder value and the statutory surplus of our regulated insurance companies.  As part of our overall investment strategy, we seek to build a tax efficient investment portfolio by maintaining an allocation to tax-exempt municipal bonds. The tax-exempt portion of our Fixed Maturities portfolio at June 30, 2017 was 19.5% compared to 17.1% at December 31, 2016.  Additionally, substantially all of our equity portfolio is invested in tax efficient securities which qualify for the dividends received deduction.  The investments are subject to the oversight of the respective insurance companies’ Boards of Directors and the Finance Committee of our Parent Company’s Board of Directors.

We are a specialty insurance company and periods of moderate economic recession or inflation tend not to have a significant direct effect on underwriting operations.  They do, however, impact our investment portfolio.  A decrease in interest rates will tend to decrease our yield and have a positive effect on the fair value of our invested assets.  An increase in interest rates will tend to increase our yield and have a negative effect on the fair value of our invested assets.

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The following table summarizes the composition of our available-for-sale investments at fair value:

	Fair Value as of
amounts in thousands	June 30, 2017		December 31, 2016		% Change
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	264,511	$	273,776		(3.4	%)
States, Municipalities and Political Subdivisions		655,064		547,415		19.7	%
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		455,133		487,364		(6.6	%)
Residential Mortgage Obligations		18,037		20,530		(12.1	%)
Asset-Backed Securities		315,945		314,601		0.4	%
Commercial Mortgage-Backed Securities		145,573		154,139		(5.6	%)
Subtotal	$	934,688	$	976,634		(4.3	%)
Corporate Exposures		896,141		838,057		6.9	%
Total Fixed Maturities	$	2,750,404	$	2,635,882		4.3	%
Equity Securities:
Common Stocks	$	172,456	$	164,087		5.1	%
Preferred Stocks		179,606		185,055		(2.9	%)
Total Equity Securities	$	352,062	$	349,142		0.8	%
Short-Term Investments		130,881		143,539		(8.8	%)
Total Investments	$	3,233,347	$	3,128,563		3.3	%

Invested assets increased from December 31, 2016 due to positive cash flow from operations, and a decrease in Treasury rates at the long end of the curve coupled with a rally in the equity markets which resulted in increased unrealized gains. Operating cash flows were primarily directed to Corporate Exposures and Municipal Bonds. Corporate Exposures, Municipal Bonds and Equity Securities benefitted from a rally in the treasury and equity markets which resulted in increased unrealized gains for these asset classes. The decrease in Short-Term Investments is due to the maturity of Treasury bills with the proceeds reinvested in longer term Fixed Maturities.

The following table sets forth the amount of our Fixed Maturities as of June 30, 2017 by S&P credit rating or, if an S&P rating is not available, the equivalent Moody’s rating. The total rating is the weighted average quality rating for the Fixed Maturities portfolio as a whole.

		As of June 30, 2017
amounts in thousands	Rating	Fair Value		AmortizedCost
Rating Description:
Extremely Strong	AAA	$	397,091	$	394,460
Very Strong	AA		1,181,788		1,169,129
Strong	A		706,069		699,111
Adequate	BBB		361,759		354,111
Speculative	BB & Below		103,201		98,689
Not Rated	NR		496		410
Total	AA-	$	2,750,404	$	2,715,910

47

The following table sets forth the composition of the non-government guaranteed Fixed Maturities categorized by asset class and generally equivalent S&P and Moody’s ratings (not all securities in our portfolio are rated by both S&P and Moody’s) as of June 30, 2017:

	As of June 30, 2017
amounts in thousands	AAA		AA		A		BBB		BBand below		Not Rated		FairValue		Amortized Cost
Municipal Bonds	$	58,585	$	429,031	$	146,211	$	21,237	$	—	$	—	$	655,064	$	637,762
Agency Residential Mortgage-Backed		—		455,133		—		—		—		—		455,133		456,673
Residential Mortgage-Backed		8,457		979		70		3,512		4,523		496		18,037		17,556
Asset-Backed		138,736		37,014		110,129		30,066		—		—		315,945		314,508
Commercial Mortgage-Backed		92,921		36,334		16,318		—		—		—		145,573		144,122
Corporate Exposures		7,141		65,192		418,186		306,944		98,678		—		896,141		881,006
Total	$	305,840	$	1,023,683	$	690,914	$	361,759	$	103,201	$	496	$	2,485,893	$	2,451,627

The following table sets forth our U.S. Treasury Bonds, Agency Bonds and Foreign Government Bonds, as well as our State, Municipality and Political Subdivision bond holdings by type:

	As of June 30, 2017
amounts in thousands	FairValue		AmortizedCost
U.S. Treasury Bonds, Agency Bonds and Foreign Government    Bonds:
U.S. Treasury Bonds	$	58,932	$	58,031
Agency Bonds		72,102		71,480
Foreign Government Bonds		133,477		134,772
Total U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	264,511	$	264,283
States, Municipalities and Political Subdivisions:
General Obligation	$	168,249	$	164,063
Prerefunded		24,913		23,972
Revenue		343,907		332,347
Taxable		117,995		117,380
Total States, Municipalities and Political Subdivisions	$	655,064	$	637,762

As of June 30, 2017, we own $49.0 million of municipal securities, which are credit enhanced by various financial guarantors that have an average underlying credit rating of A+.  

The following table sets forth our Agency Mortgage-Backed Securities (“AMBS”) issued by the Government National Mortgage Association (“GNMA”), Federal National Mortgage Association (“FNMA”) and Federal Home Loan Mortgage Corporation (“FHLMC”) and the quality category (Prime, Alternative A-paper (“Alt-A”), Non-U.S. RMBS and Other Non-Agency) for Residential Mortgage-Backed Securities (“RMBS”) as of June 30, 2017:

	As of June 30, 2017
amounts in thousands	Fair Value		AmortizedCost
AMBS:
GNMA	$	50,236	$	49,170
FNMA		288,221		290,321
FHLMC		116,676		117,182
Total Agency Mortgage-Backed Securities	$	455,133	$	456,673
RMBS:
Prime	$	8,607	$	8,210
Alt-A		973		915
Non-U.S. RMBS		4,503		4,502
Other  Non-Agency		3,954		3,929
Total Residential Mortgage-Backed Securities	$	18,037	$	17,556

48

We analyze our Mortgage-Backed Securities by credit quality of the underlying collateral distinguishing between the securities issued by FNMA, FHLMC and GNMA, which are federal government sponsored entities, and non-agency backed securities broken out by Prime, Alt-A, Non-U.S and Other Non-Agency collateral. The securities issued by FNMA and FHLMC are the obligations of each respective entity. The U.S. Department of the Treasury has agreed to provide support to FNMA and FHLMC under a Preferred Stock Purchase Agreement by committing to make quarterly payments to these enterprises, if needed, to maintain a zero net worth.

Prime collateral consists of mortgages or other collateral from the most creditworthy borrowers. Alt-A collateral consists of mortgages or other collateral from borrowers, which have a risk potential greater than Prime but less than subprime. The subprime collateral consists of mortgages or other collateral from borrowers with low credit ratings. We have no exposure to subprime RMBS at June 30, 2017. Prime, subprime and Alt-A categories are as defined by S&P.

Details of the collateral of our Asset-Backed Securities portfolio as of June 30, 2017 are presented below:

	As of June 30, 2017
amounts in thousands	Fair Value		AmortizedCost
Auto Loans	$	42,397	$	42,415
Aircraft		20,989		20,545
Consumer Loans		34,181		34,017
Credit Cards		25,354		25,273
Collateralized Loan Obligations		91,972		91,865
Time Share		40,513		40,714
Miscellaneous		60,539		59,679
Total Asset-Backed Securities	$	315,945	$	314,508

Details of our Corporate Exposures portfolio as of June 30, 2017 are presented below:

	As of June 30, 2017
amounts in thousands	Fair Value		AmortizedCost
Corporate Exposures:
Corporate Bonds	$	742,801	$	734,359
Hybrid Bonds		126,178		120,715
Redeemable Preferred Stocks		27,162		25,932
Total Corporate Exposures	$	896,141	$	881,006

We hold non-sovereign securities where the issuer is located in the Euro Area, an economic and monetary union of certain member states within the European Union, that have adopted the Euro as their common currency. As of June 30, 2017, the fair value of such securities was $100.4 million, with an amortized cost of $100.2 million, representing 3.2% of our total Fixed Maturities and equity portfolio. Our largest exposure is in The Netherlands with a total of $35.4 million followed by France with a total of $31.4 million.  We have no direct exposure to Greece, Portugal, Italy or Spain within the Euro Area as of June 30, 2017.

The following table summarizes the gross unrealized investment losses as of June 30, 2017 by length of time where the fair value was less than 80% of amortized cost:

	As of June 30, 2017
	Fixed		Equity
amounts in thousands	Maturities		Securities		Total
Less than twelve months	$	—	$	—	$	—
Twelve months or longer		592		—		592
Total	$	592	$	—	$	592

The twelve months or longer unrealized loss of $0.6 million is due to unfavorable foreign exchange movement in our Canadian portfolio.

Our Company had no credit related OTTI losses during the three months ended June 30, 2017. Our Company had two credit related OTTI losses totaling $1.1 million in the equity portfolio during the six months ended June 30, 2017. Our Company had one credit related OTTI loss totaling $0.2 million in the Fixed Maturities portfolio during the three and six months ended June 30, 2016.  

49

The fair value of our investment portfolio may fluctuate significantly in response to various factors such as changes in interest rates, investment quality ratings, equity prices, foreign exchange rates and credit spreads. We do not have the intent to sell nor is it more likely than not that we will have to sell Fixed Maturities in unrealized loss positions that are not other-than-temporarily impaired before recovery. For structured securities, default probability and severity assumptions differ based on property type, vintage and the stress of the collateral. We do not intend to sell any of these securities and it is more likely than not that we will not be required to sell these securities before the recovery of the amortized cost basis. For Equity Securities, we also consider our intent to hold securities as part of the process of evaluating whether a decline in fair value represents an other-than-temporary decline in value. We may realize investment losses to the extent our liquidity needs require the disposition of Fixed Maturity securities in unfavorable interest rate, liquidity or credit spread environments. Significant changes in the factors we consider when evaluating investments for impairment losses could result in a significant change in impairment losses reported in the Consolidated Financial Statements.

Critical Accounting Estimates

Our Company’s Annual Report on Form 10-K for the year ended December 31, 2016 discloses our critical accounting estimates (refer to Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations – Critical Accounting Estimates).

We believe the items that require the most subjective and complex estimates involve the reporting of:

• Reserves for Losses and LAE (including losses that have occurred but were not reported to us by the financial reporting date);

• Reinsurance Recoverables, including a provision for uncollectible reinsurance;

• Written and Unearned Premiums;

• The recoverability of Deferred Tax Assets;

• The impairment of investment securities; and

• Valuation of invested assets.

We believe that the critical accounting estimates discussion in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2016 continues to describe the significant estimates and judgements included in the preparation of our Consolidated Financial Statements.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Refer to Item 7A included in our Company’s 2016 Annual Report on Form 10-K. There have been no material changes to this item since December 31, 2016.

Item 4. Controls and Procedures

(a) Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, have evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of the end of the period covered by this Quarterly Report.  Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of the end of such period our Company’s disclosure controls and procedures are effective in identifying, on a timely basis, material information required to be disclosed in our reports filed or submitted under the Exchange Act.

(b) There have been no changes during our second fiscal quarter in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our Company’s internal control over financial reporting.

(c) In designing and evaluating the disclosure controls and procedures and internal control over financial reporting, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures and internal control over financial reporting must reflect the fact that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

50

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary course of conducting business, our subsidiaries are involved in various legal proceedings, either indirectly as insurers for parties or directly as defendants. Most of these proceedings consist of claims litigation involving our subsidiaries as either: (a) liability insurers defending or providing indemnity for third party claims brought against insureds or (b) insurers defending first party coverage claims brought against us. Our Company accounts for such activity through the establishment of unpaid losses and LAE reserves. Our Company’s management believes that our ultimate liability, if any, with respect to such ordinary-course claims litigation, after consideration of provisions made for potential losses and cost of defense, will not be material to the consolidated financial condition, results of operations, or cash flows of our Company.

Our subsidiaries are also occasionally involved with other legal actions, some of which assert claims for substantial amounts. These actions include claims asserting extra contractual obligations, such as claims involving allegations of bad faith in the handling of claims or the underwriting of policies. In general, our Company believes we have valid defenses to these cases. Our Company’s management expects that the ultimate liability, if any, with respect to such extra-contractual matters will not be material to our consolidated financial position. Nonetheless, given the large or indeterminate amounts sought in certain of these matters, and the inherent unpredictability of litigation, an adverse outcome in such matters could, from time to time, have a material adverse outcome on our consolidated results of operations or cash flows in a particular fiscal quarter or year.

Item 1A. Risk Factors

There have been no material changes from the risk factors as previously disclosed in our Company’s 2016 Annual Report on Form 10-K.

On March 29, 2017, the Prime Minister of the U.K. provided formal notification to the E.U. of the U.K’s intent to exit the E.U. The notification started the two-year process of negotiation between the U.K. and the E.U. to conclude the terms of the U.K’s exit. Please refer to the risk factor titled “The withdrawal of the U.K. from the E.U. could have a material adverse effect on our business, business opportunities, results of operations, financial condition and cash flows.” in our 2016 Annual Report on Form 10-K for additional information on the impact of such an event on our Company.

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

None

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not applicable

Item 5. Other Information

None

51

Item 6. Exhibits

Exhibit No.	Description of Exhibit
11-1	Computation of Per Share Earnings	*
31-1	Certification of CEO per Section 302 of the Sarbanes-Oxley Act	*
31-2	Certification of CFO per Section 302 of the Sarbanes-Oxley Act	*
32-1	Certification of CEO per Section 906 of the Sarbanes-Oxley Act (This exhibit is intended to be furnished in accordance with Regulation S-K item 601(b)(32)(ii) and shall not be deemed to be filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference into any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference).	*
32-2	Certification of CFO per Section 906 of the Sarbanes-Oxley Act (This exhibit is intended to be furnished in accordance with Regulation S-K item 601(b)(32)(ii) and shall not be deemed to be filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference into any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference).	*
101.INS	XBRL Instance Document	*
101.SCH	XBRL Taxonomy Extension Scheme	*
101.CAL	XBRL Taxonomy Extension Calculation Database	*
101.LAB	XBRL Taxonomy Extension Label Linkbase	*
101.PRE	XBRL Taxonomy Extension Presentation Linkbase	*
101.DEF	XBRL Taxonomy Extension Definition Linkbase	*

* Included herein

52

Signatures

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

	The Navigators Group, Inc.
	(Company)
Dated:  August 4, 2017	By:	/s/ Ciro M. DeFalco
		Ciro M. DeFalco
		Executive Vice President and Chief Financial Officer

53

Index to Exhibits

Exhibit No.	Description of Exhibit
11-1	Computation of Per Share Earnings	*
31-1	Certification of CEO per Section 302 of the Sarbanes-Oxley Act	*
31-2	Certification of CFO per Section 302 of the Sarbanes-Oxley Act	*
32-1	Certification of CEO per Section 906 of the Sarbanes-Oxley Act (This exhibit is intended to be furnished in accordance with Regulation S-K item 601(b)(32)(ii) and shall not be deemed to be filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference into any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference).	*
32-2	Certification of CFO per Section 906 of the Sarbanes-Oxley Act (This exhibit is intended to be furnished in accordance with Regulation S-K item 601(b)(32)(ii) and shall not be deemed to be filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference into any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference).	*
101.INS	XBRL Instance Document	*
101.SCH	XBRL Taxonomy Extension Scheme	*
101.CAL	XBRL Taxonomy Extension Calculation Database	*
101.LAB	XBRL Taxonomy Extension Label Linkbase	*
101.PRE	XBRL Taxonomy Extension Presentation Linkbase	*
101.DEF	XBRL Taxonomy Extension Definition Linkbase	*

* Included herein

54

EX-11.1

Exhibit 11-1

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

Computation of Per Share Earnings

The following table presents the computation of Basic and Diluted Earnings per Share for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,				Six Months Ended June 30,
amounts in thousands, except per share amounts	2017		2016		2017		2016
Net Income	$	20,502	$	16,190	$	41,612	$	39,122
Basic Weighted Average Shares (1)		29,470		29,074		29,377		29,029
Effect of Common Stock Equivalents:
Assumed Exercise of Stock Options and Vesting of Stock Grants		448		879		520		855
Diluted Weighted Average Shares		29,918		29,953		29,897		29,884
Net Income per Common Share:
Basic	$	0.70	$	0.56	$	1.42	$	1.35
Diluted	$	0.69	$	0.54	$	1.39	$	1.31
Anti-dilutive Shares Excluded from the Dilutive Computation		164		—		108		—

(1) - We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

EX-31.1

Exhibit 31-1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PER

SECTION 302 OF THE SARBANES-OXLEY ACT

I, Stanley A. Galanski, certify that:

1. I have reviewed this report on Form 10-Q of The Navigators 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 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 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 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.

Date: August 4, 2017	/s/ Stanley A. Galanski
	Name:	Stanley A. Galanski
	Title:	President and Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

Exhibit 31-2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PER

SECTION 302 OF THE SARBANES-OXLEY ACT

I, Ciro M. DeFalco, certify that:

1. I have reviewed this report on Form 10-Q of The Navigators 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 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 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 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.

Date: August 4, 2017	/s/ Ciro M. DeFalco
	Name:	Ciro M. DeFalco
	Title:	Executive Vice President and Chief Financial Officer
		(Principal Financial Officer)

EX-32.1

Exhibit 32-1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of The Navigators Group, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stanley A. Galanski, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(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.

/s/ Stanley A. Galanski

Stanley A. Galanski

President and Chief Executive Officer

August 4, 2017

A signed original of this written statement required by Section 906 has been provided to The Navigators Group, Inc. and will be retained by The Navigators Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32-2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of The Navigators Group, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ciro M. DeFalco, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(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.

/s/ Ciro M. DeFalco

Ciro M. DeFalco

Executive Vice President and Chief Financial Officer

August 4, 2017

A signed original of this written statement required by Section 906 has been provided to The Navigators Group, Inc. and will be retained by The Navigators Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 28, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Trading Symbol	NAVG
Entity Registrant Name	NAVIGATORS GROUP INC
Entity Central Index Key	0000793547
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		29,498,176

XML

Consolidated Balance Sheets - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Investments:
Fixed Maturities, available-for-sale, at fair value (amortized cost: 2017: $2,715,910; 2016: $2,628,225)		$ 2,750,404	$ 2,635,882
Equity Securities, available-for-sale, at fair value (cost: 2017: $312,511; 2016: $327,911)		352,062	349,142
Other Invested Assets		1,781	1,960
Short-Term Investments, at fair value (amortized cost: 2017: $130,598; 2016: $143,451)		130,881	143,539
Total Investments		3,235,128	3,130,523
Cash		69,222	64,643
Premiums Receivable		423,767	306,686
Prepaid Reinsurance Premiums		238,359	213,377
Reinsurance Recoverable on Paid Losses		67,567	82,582
Reinsurance Recoverable on Unpaid Losses and Loss Adjustment Expenses		782,864	779,276
Deferred Policy Acquisition Costs		132,796	119,660
Accrued Investment Income		18,196	17,315
Goodwill and Other Intangible Assets		6,499	6,451
Current Income Tax Receivable, Net		16,113	20,556
Deferred Income Tax, Net		15,430	20,938
Other Assets		57,953	52,030
Total Assets		5,063,894	4,814,037
Liabilities:
Reserves for Losses and Loss Adjustment Expenses		2,346,327	2,289,727
Unearned Premiums		1,002,855	887,344
Reinsurance Balances Payable		125,357	108,980
Senior Notes		263,806	263,728
Payable for Investments Purchased		12,000	0
Accounts Payable and Other Liabilities		69,381	86,070
Total Liabilities		3,819,726	3,635,849
Stockholders' equity:
Preferred Stock ($.10 par value per share, authorized 1,000 shares, none issued)	[1]	0	0
Common Stock ($.10 par value per share, authorized 50,000 shares, issued 36,498 shares for 2017 and 36,147 shares for 2016)	[1]	3,647	3,612
Additional Paid-In Capital	[1]	371,410	373,983
Treasury Stock, at cost (7,023 shares for 2017 and 2016)	[1]	(155,801)	(155,801)
Retained Earnings	[1]	986,039	947,519
Accumulated Other Comprehensive Income	[1]	38,873	8,875
Total Stockholders' Equity	[1]	1,244,168	1,178,188
Total Liabilities and Stockholders' Equity		$ 5,063,894	$ 4,814,037

[1] We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

XML

Consolidated Balance Sheets (Parenthetical) $ in Thousands	Jun. 30, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares
Statement Of Financial Position [Abstract]
Fixed Maturities, available-for-sale, amortized cost | $	$ 2,715,910	$ 2,628,225
Equity Securities, available-for-sale, cost | $	312,511	327,911
Short-Term Investments, amortized cost | $	$ 130,598	$ 143,451
Preferred Stock, par value | $ / shares	$ 0.10	$ 0.10
Preferred Stock, authorized shares	1,000,000	1,000,000
Preferred Stock, issued shares	0	0
Common Stock, par value | $ / shares	$ 0.10	$ 0.10
Common Stock, authorized shares	50,000,000	50,000,000
Common Stock, issued shares	36,498,000	36,147,000
Treasury Stock, shares	7,023,000	7,023,000

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Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Gross Written Premiums		$ 452,179	$ 412,565	$ 902,484	$ 826,442
Revenues:
Net Written Premiums		333,282	306,535	670,445	626,355
Change in Unearned Premiums		(39,447)	(38,543)	(90,479)	(94,005)
Net Earned Premiums		293,835	267,992	579,966	532,350
Net Investment Income		22,265	19,875	43,713	39,469
Total Other-Than-Temporary Impairment Losses		29	(162)	(1,048)	(271)
Portion of Loss Recognized in Other Comprehensive Income (Before Tax)		(29)	12	(45)	121
Net Other-Than-Temporary Impairment Losses Recognized in Earnings		0	(150)	(1,093)	(150)
Net Realized Gains		1,694	1,960	2,743	3,557
Other Income (Loss)		(411)	4,430	657	6,979
Total Revenues		317,383	294,107	625,986	582,205
Expenses:
Net Losses and Loss Adjustment Expenses		177,110	167,206	346,710	320,162
Commission Expenses		48,173	40,726	96,017	78,280
Other Operating Expenses		60,766	59,074	119,304	119,883
Interest Expense		3,861	3,858	7,722	7,716
Total Expenses		289,910	270,864	569,753	526,041
Income Before Income Taxes		27,473	23,243	56,233	56,164
Income Tax Expense		6,971	7,053	14,621	17,042
Net Income		$ 20,502	$ 16,190	$ 41,612	$ 39,122
Net income per common share:
Basic	[1]	$ 0.70	$ 0.56	$ 1.42	$ 1.35
Diluted	[1]	$ 0.69	$ 0.54	$ 1.39	$ 1.31
Average common shares outstanding:
Basic	[1]	29,470	29,074	29,377	29,029
Diluted	[1]	29,918	29,953	29,897	29,884
Cash Dividends Declared per Common Share		$ 0.06	$ 0.045	$ 0.105	$ 0.045

[1] We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

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Consolidated Statements of Income (Parenthetical)		6 Months Ended
	Jan. 20, 2017	Jun. 30, 2017
Income Statement [Abstract]
Stock split ratio	2
Stockholders equity, stock split		We completed a two-for-one stock split on January 20, 2017.

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 20,502	$ 16,190	$ 41,612	$ 39,122
Change in Net Unrealized Gains on Investments:
Unrealized Gains on Investments arising during the period, net of Deferred Tax	14,684	23,751	28,661	45,018
Reclassification adjustment for Net Realized (Gains) Losses included in Net Income net of Deferred Tax	(291)	(331)	399	1,411
Change in Net Unrealized Gains on Investments	14,393	23,420	29,060	46,429
Change in Other-Than-Temporary Impairments
Non Credit Other-Than-Temporary Impairments arising during the period, net of Deferred Tax	19	(8)	29	(79)
Reclassification Adjustment for Other-Than-Temporary Impairment Credit Losses Recognized in Net Income net of Deferred Tax	0	1,119	389	1,316
Change in Other-Than-Temporary Impairments	19	1,111	418	1,237
Change in Foreign Currency Translation Gains (Losses), net of Deferred Tax	785	(5,493)	520	(5,840)
Other Comprehensive Income	15,197	19,038	29,998	41,826
Comprehensive Income	$ 35,699	$ 35,228	$ 71,610	$ 80,948

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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement Of Income And Comprehensive Income [Abstract]
Unrealized Gains on Investments arising during the period, Deferred Tax	$ (7,907)	$ (12,788)	$ (15,433)	$ (24,239)
Reclassification adjustment for Net Realized (Gains) Losses included in Net Income, Deferred Tax	157	178	(215)	(760)
Non Credit Other-Than-Temporary Impairments arising during the period, Deferred Tax	(10)	4	(16)	42
Reclassification Adjustment for Other-Than-Temporary Impairment Credit Losses Recognized in Net Income, Deferred Tax	0	(603)	(209)	(709)
Change in Foreign Currency Translation Gains (Losses), Deferred Tax	$ (423)	$ 2,963	$ (280)	$ 3,146

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Consolidated Statement of Stockholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) shares in Thousands, $ in Thousands		Total		Common Stock		Additional Paid-in Capital	Treasury Stock		Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2016		$ 1,178,188	[1]	$ 3,612		$ 373,983	$ (155,801)		$ 947,519	$ 8,875
Beginning balance (in shares) at Dec. 31, 2016		36,147		36,147	[2]		7,023	[2]
Net Income		$ 41,612							41,612
Dividends Declared		(3,092)							(3,092)
Changes in Comprehensive Income:
Change in Net Unrealized Gain on Investments		29,060								29,060
Change in Net Non-Credit Other-Than- Temporary Impairment Losses		418								418
Change in Foreign Currency Translation Gain		520								520
Total Comprehensive Income		29,998								29,998
Shares Issued	[3]	(11,684)		$ 35		(11,719)
Shares issued (in shares)	[2],[3]			351
Share-Based Compensation		9,146				9,146
Ending balance at Jun. 30, 2017		$ 1,244,168	[1]	$ 3,647		$ 371,410	$ (155,801)		$ 986,039	$ 38,873
Ending balance (in shares) at Jun. 30, 2017		36,498		36,498	[2]		7,023	[2]

[1] We completed a two-for-one stock split on January 20, 2017. All share and per share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

[2] We completed a two-for-one stock split on January 20, 2017. All share data prior to January 20, 2017 has been retroactively restated on a post-split basis.

[3] Includes shares issued under the Second Amended and Restated 2005 Stock Incentive Plan to Directors and the Employee Stock Purchase Plan.

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Consolidated Statement of Stockholders' Equity (Parenthetical)		6 Months Ended
	Jan. 20, 2017	Jun. 30, 2017
Statement Of Stockholders Equity [Abstract]
Stock split ratio	2
Stockholders equity, stock split		We completed a two-for-one stock split on January 20, 2017.

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating Activities:
Net Income	$ 41,612	$ 39,122
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation & Amortization	2,411	2,816
Share-Based Compensation	9,146	9,409
Deferred Income Taxes	(10,793)	(3,076)
Net Realized Gains	(2,743)	(3,557)
Net Other-Than-Temporary Impairments Recognized in Earnings	1,093	150
Non-Cash Foreign Exchange Gains	(1,137)	(6,983)
Changes in Assets And Liabilities:
Reinsurance Recoverable on Paid and Unpaid Losses and Loss Adjustment Expenses	13,107	(19,743)
Reserves for Losses and Loss Adjustment Expenses	52,063	77,812
Prepaid Reinsurance Premiums	(24,982)	10,174
Unearned Premiums	115,511	83,831
Premiums Receivable	(116,689)	(92,004)
Deferred Policy Acquisition Costs	(13,137)	(21,411)
Accrued Investment Income	(881)	(176)
Reinsurance Balances Payable	16,145	22,497
Current Income Tax Payable, Net	7,175	3,748
Other	(14,997)	15,885
Net Cash Provided by Operating Activities	72,904	118,494
Fixed Maturities
Redemptions and Maturities	165,690	127,952
Sales	95,240	225,363
Purchases	(356,970)	(515,752)
Equity Securities
Sales	39,487	28,189
Purchases	(21,022)	(37,898)
Change in Payable for Securities	12,028	47,062
Net Change in Short-Term Investments	12,649	74,399
Purchase of Property and Equipment	(2,098)	(3,422)
Net Cash Used in Investing Activities	(54,996)	(54,107)
Financing Activities:
Proceeds of Stock Issued From Employee Stock Purchase Plan	1,147	867
Payment of Employee Tax Withholding on Stock Compensation	(13,189)	(4,914)
Dividends Paid	(3,092)	0
Net Cash Used in Financing Activities	(15,134)	(4,047)
Effect of Exchange Rate on Cash	1,805	(8,373)
Change in Cash	4,579	51,967
Cash at Beginning of Year	64,643	69,901
Cash at End of Period	69,222	121,868
Supplemental Information:
Income Taxes Paid, Net	21,445	14,950
Interest Paid	7,619	7,619
Issuance of Stock to Directors	578	633
Dividends Declared and Unpaid	$ 0	$ 1,309

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Organization and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Organization and Summary of Significant Accounting Policies

NOTE 1.  ORGANIZATION & SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Unless the context requires otherwise, the terms “we,” “us,” “our” or “our Company” are used to mean The Navigators Group, Inc., a Delaware holding company established in 1982, and its subsidiaries. The term “Parent Company” is used to mean The Navigators Group, Inc. without its subsidiaries.

Organization

We are an international insurance company with a long-standing area of specialization in Marine insurance. We also offer Property and Casualty (“P&C”) insurance, primarily general liability coverage and umbrella & excess liability coverage to commercial enterprises through our Primary and Excess Casualty divisions. We have also developed niches in Professional Liability insurance, through our Directors & Officers (“D&O”) and Errors & Omissions (“E&O”) divisions, as well as assumed reinsurance products.

We operate through various wholly-owned insurance and service companies. Our subsidiaries domiciled in the United States (“U.S.”) include two insurance companies, Navigators Insurance Company (“NIC”) and Navigators Specialty Insurance Company (“NSIC”), as well as our U.S. underwriting agency, Navigators Management Company (“NMC”). NIC includes a branch in the United Kingdom (“U.K”). We also have operations domiciled in the U.K., Hong Kong and Europe. Navigators International Insurance Company Ltd. (“NIIC”), Navigators Management (U.K.) Ltd. (“NMUK”) and Navigators Underwriting Ltd. (“NUL”) are domiciled in the U.K. and NUL includes European branches. Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s of London (“Lloyd’s”) underwriting agency, manages and provides the capital, through Navigators Corporate Underwriters Ltd. (“NCUL”), for our Lloyd’s Syndicate 1221 (the “Syndicate”), and is also domiciled in the U.K. We control 100% of the Syndicate’s stamp capacity.

Effective January 1, 2017, we sold our underwriting agency operations in Sweden and Denmark. The transaction represented a 100% disposition of our Sweden and Denmark corporations, NUAL AB and Navigators A/S, respectively. This transaction did not have a material impact on our financial statements.

Basis of Presentation

The Consolidated Balance Sheet at June 30, 2017 and the Consolidated Statements of Income, Comprehensive Income, Stockholders’ Equity and Cash Flows for the periods ended June 30, 2017 and 2016 are unaudited. The Balance Sheet at December 31, 2016 is derived from our audited Financial Statements. The accompanying Interim Consolidated Financial Statements reflect all adjustments, which, in the opinion of management, are necessary to fairly present the results of our Company for the interim periods presented on the basis of U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the U.S. Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. All significant intercompany transactions and balances have been eliminated in consolidation. The preparation of these Financial Statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the Financial Statements and the reported revenues and expenses during the reporting periods. The results of operations for any interim period are not necessarily indicative of results for the full year. The Interim Consolidated Financial Statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2016. Certain amounts for the prior period have been reclassified to conform with the current period presentation.

Income Taxes

The interim income tax provision has been computed based on our estimated annual Effective Tax Rate, which represents our best estimate on a year to date basis for the interim period. As a result, the tax provision for a given quarter equals the difference between the provision recorded cumulatively year to date less the amount recorded cumulatively as of the end of the prior interim period. Our Effective Tax Rate for the quarter and year to date differs from the federal tax rate of 35% primarily due to an excess tax benefit related to the vesting of stock compensation at fair market value, tax-exempt investment income and dividends received deduction.

Starting in the first quarter of 2017, excess tax benefits related to the vesting of stock compensation were recognized as a reduction to Income Tax Expense rather than as an increase to Additional Paid-In Capital as a result of the adoption of the Accounting Standards Update (“ASU”) 2016-09 (see section New Accounting Standards Adopted in 2017 of this footnote for further information on the adoption of this standard).

Significant Accounting Policies

There were no changes in our significant accounting policies subsequent to our Annual Report on Form 10-K for the year ended December 31, 2016.

New Accounting Standards Adopted in 2017

Share-Based Compensation Accounting

Effective January 1, 2017, our Company adopted ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” issued by the Financial Accounting Standards Board (the “FASB”). This guidance requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, eliminates the requirement that excess tax benefits be realized before companies can recognize them, requires the presentation of excess tax benefits as an operating activity on the statement of cash flows, allows employers to increase the amounts withheld to cover income taxes on share-based compensation awards without requiring liability classification, requires the presentation of employee taxes paid as a financing activity on the statement of cash flows, and requires companies to elect whether they will account for award forfeitures by recognizing forfeitures only as they occur or by estimating the number of awards expected to be forfeited.

The requirement to recognize all income tax effects of awards in the income statement when the awards vest or are settled was adopted on a prospective basis. Previously, these amounts were recorded in Additional Paid-In Capital. This change also prospectively impacts the calculation of potential common shares used to determine Diluted Net Income per Common Share under the treasury stock method. The new standard requires that assumed proceeds under the treasury stock method be modified to exclude the amount of excess tax benefits that previously would have been recognized in Additional Paid-In Capital.

We elected to account for forfeitures of share-based payment awards by recognizing forfeitures of awards as they occur, and upon adoption of this guidance, the payment of employee taxes was retrospectively adjusted on the Consolidated Statements of Cash Flows to be classified as a financing activity. All other changes in the ASU did not result in cumulative-effect or retrospective adjustments. The adoption of this guidance did not materially impact our results of operations, financial condition or liquidity.

Transition to Equity Method of Accounting

Effective January 1, 2017, our Company adopted the ASU 2016-07, “Simplifying the Transition to the Equity Method of Accounting” issued by the FASB. This guidance eliminates the requirement to retrospectively apply equity method accounting when an investment that had been accounted for by another method initially qualifies for the equity method. Our Company did not have any investments transitioning to the equity method of accounting during the six months ended June 30, 2017. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Share-Based Compensation Modification Accounting

During the second quarter of 2017, our Company early adopted the ASU 2017-09, “Scope of Modification Accounting” issued by the FASB. This guidance clarifies when changes to the terms or conditions of a share-based award must be accounted for as modifications. Under the new guidance, modification accounting is required if the value, vesting conditions or classification of the award changes. This guidance will be applied prospectively to awards modified on or after the adoption date. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Recently Issued Accounting Standards Not Yet Adopted

Definition of a Business

In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business” with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This guidance is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years with early adoption permitted. This guidance will be applied prospectively to any transactions occurring within the period of adoption.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment” that eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of the current goodwill impairment test) to measure a goodwill impairment charge. Instead, an impairment charge will be based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on Step 1 of the current goodwill impairment test). This guidance is effective for annual and interim impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. This guidance will be adopted on a prospective basis.

Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, “Premium Amortization on Purchased Callable Debt Securities” that shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. This guidance is effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years with early adoption permitted. This guidance will be adopted using a modified retrospective transition approach. The adoption of this guidance is not expected to materially impact our results of operations, financial condition or liquidity.

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Segment Information

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Segment Information

NOTE 2.  SEGMENT INFORMATION

We report our results of operations consistent with the manner in which our Chief Operating Decision Maker reviews the business to assess performance through our reporting segments: U.S. Insurance, International Insurance (“Int’l Insurance”), Global Reinsurance (“GlobalRe”) and Corporate. 

We classify our business into three underwriting segments: U.S. Insurance, Int’l Insurance and GlobalRe.  Both the U.S. Insurance and Int’l Insurance reporting segments are each comprised of three operating segments: Marine, P&C and Professional Liability.

We evaluate the performance of each of the underwriting segments based on underwriting results.  Underwriting results are measured based on Underwriting Profit or Loss and the related Combined Ratio, which are both measures of underwriting profitability.   Underwriting Profit (Loss) is calculated from Net Earned Premiums less the sum of Net Losses and Loss Adjustment Expenses (“LAE”), Commission Expenses, Other Operating Expenses and Other Underwriting Income (Expense).  The Combined Ratio is derived by dividing the sum of Net Losses and LAE, Commission Expenses, Other Operating Expenses and Other Underwriting Income (Expense) by Net Earned Premiums.  A Combined Ratio of less than 100% indicates an Underwriting Profit and greater than 100% indicates an Underwriting Loss.  Our underwriting performance is evaluated separately from the rest of our operations.  

The performance of our investment portfolios, our liquidity and capital resource needs, our foreign currency exposure and our tax planning strategies are evaluated on a consolidated basis within our Corporate segment. We do not allocate our assets by underwriting segment as we evaluate the underwriting results of these segments separately from the results of our investments portfolio.

Financial data by segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	167,087		$	82,100		$	44,648		$	—		$	293,835
Net Losses and LAE		(105,270	)		(44,095	)		(27,745	)		—			(177,110	)
Commission Expenses		(20,460	)		(19,001	)		(8,970	)		258			(48,173	)
Other Operating Expenses		(33,140	)		(22,506	)		(5,120	)		—			(60,766	)
Other Underwriting Income (Expense)		100			—			169			(258	)		11
Underwriting Profit (Loss)	$	8,317		$	(3,502	)	$	2,982		$	—		$	7,797
Net Investment Income											22,265			22,265
Net Realized Gains											1,694			1,694
Interest Expense											(3,861	)		(3,861	)
Other Loss											(422	)		(422	)
Income (Loss) Before Income Taxes	$	8,317		$	(3,502	)	$	2,982		$	19,676		$	27,473
Income Tax Expense											(6,971	)		(6,971	)
Net Income													$	20,502
Losses and LAE Ratio		63.0	%		53.7	%		62.1	%					60.3	%
Commission Expense Ratio		12.2	%		23.1	%		20.1	%					16.4	%
Other Operating Expense Ratio (2)		19.8	%		27.5	%		11.1	%					20.6	%
Combined Ratio		95.0	%		104.3	%		93.3	%					97.3	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Three Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	152,384		$	77,833		$	37,775		$	—		$	267,992
Net Losses and LAE		(93,428	)		(48,066	)		(25,712	)		—			(167,206	)
Commission Expenses		(16,894	)		(16,821	)		(7,492	)		481			(40,726	)
Other Operating Expenses		(31,570	)		(23,043	)		(4,461	)		—			(59,074	)
Other Underwriting Income (Expense)		342			—			203			(481	)		64
Underwriting Profit (Loss)	$	10,834		$	(10,097	)	$	313		$	—		$	1,050
Net Investment Income											19,875			19,875
Net Realized Gains											1,810			1,810
Interest Expense											(3,858	)		(3,858	)
Other Income											4,366			4,366
Income (Loss) Before Income Taxes	$	10,834		$	(10,097	)	$	313		$	22,193		$	23,243
Income Tax Expense											(7,053	)		(7,053	)
Net Income													$	16,190
Losses and LAE Ratio		61.3	%		61.8	%		68.1	%					62.4	%
Commission Expense Ratio		11.1	%		21.6	%		19.8	%					15.2	%
Other Operating Expense Ratio (2)		20.5	%		29.6	%		11.3	%					22.0	%
Combined Ratio		92.9	%		113.0	%		99.2	%					99.6	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	331,091		$	166,186		$	82,689		$	—		$	579,966
Net Losses and LAE		(204,096	)		(94,800	)		(47,814	)		—			(346,710	)
Commission Expenses		(40,844	)		(38,234	)		(17,462	)		523			(96,017	)
Other Operating Expenses		(66,612	)		(42,299	)		(10,393	)		—			(119,304	)
Other Underwriting Income (Expense)		210			—			345			(523	)		32
Underwriting Profit (Loss)	$	19,749		$	(9,147	)	$	7,365		$	—		$	17,967
Net Investment Income											43,713			43,713
Net Realized Gains											1,650			1,650
Interest Expense											(7,722	)		(7,722	)
Other Income											625			625
Income (Loss) Before Income Taxes	$	19,749		$	(9,147	)	$	7,365		$	38,266		$	56,233
Income Tax Expense											(14,621	)		(14,621	)
Net Income													$	41,612
Losses and LAE Ratio		61.6	%		57.0	%		57.8	%					59.8	%
Commission Expense Ratio		12.3	%		23.0	%		21.1	%					16.6	%
Other Operating Expense Ratio (2)		20.1	%		25.5	%		12.2	%					20.5	%
Combined Ratio		94.0	%		105.5	%		91.1	%					96.9	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate(1)			Total
Net Earned Premiums	$	300,724		$	155,841		$	75,785		$	—		$	532,350
Net Losses and LAE		(184,940	)		(88,476	)		(46,746	)		—			(320,162	)
Commission Expenses		(31,749	)		(32,176	)		(15,237	)		882			(78,280	)
Other Operating Expenses		(65,331	)		(44,814	)		(9,738	)		—			(119,883	)
Other Underwriting Income (Expense)		703			—			252			(882	)		73
Underwriting Profit (Loss)	$	19,407		$	(9,625	)	$	4,316		$	—		$	14,098
Net Investment Income											39,469			39,469
Net Realized Gains											3,407			3,407
Interest Expense											(7,716	)		(7,716	)
Other Income											6,906			6,906
Income (Loss) Before Income Taxes	$	19,407		$	(9,625	)	$	4,316		$	42,066		$	56,164
Income Tax Expense											(17,042	)		(17,042	)
Net Income													$	39,122
Losses and LAE Ratio		61.5	%		56.8	%		61.7	%					60.1	%
Commission Expense Ratio		10.6	%		20.6	%		20.1	%					14.7	%
Other Operating Expense Ratio (2)		21.4	%		28.8	%		12.5	%					22.6	%
Combined Ratio		93.5	%		106.2	%		94.3	%					97.4	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

Revenue by operating segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017									Three Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			Net Written Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	41,687	$	(19,451	)	$	22,236	$	21,812	$	46,187	$	(18,540	)	$	27,647	$	24,921		(9.7	%)		4.9	%		(19.6	%)		(12.5	%)
P&C		187,492		(51,147	)		136,345		121,226		168,654		(36,768	)		131,886		110,212		11.2	%		39.1	%		3.4	%		10.0	%
ProfessionalLiability		28,007		(3,259	)		24,748		24,049		29,083		(7,310	)		21,773		17,251		(3.7	%)		(55.4	%)		13.7	%		39.4	%
Total	$	257,186	$	(73,857	)	$	183,329	$	167,087	$	243,924	$	(62,618	)	$	181,306	$	152,384		5.4	%		17.9	%		1.1	%		9.6	%
Int'l Insurance
Marine	$	49,597	$	(12,536	)	$	37,061	$	39,525	$	41,147	$	(9,554	)	$	31,593	$	36,096		20.5	%		31.2	%		17.3	%		9.5	%
P&C		46,663		(20,362	)		26,301		23,337		63,002		(24,465	)		38,537		23,815		(25.9	%)		(16.8	%)		(31.8	%)		(2.0	%)
Professional Liability		34,933		(10,911	)		24,022		19,238		31,591		(7,891	)		23,700		17,922		10.6	%		38.3	%		1.4	%		7.3	%
Total	$	131,193	$	(43,809	)	$	87,384	$	82,100	$	135,740	$	(41,910	)	$	93,830	$	77,833		(3.3	%)		4.5	%		(6.9	%)		5.5	%
GlobalRe	$	63,800	$	(1,231	)	$	62,569	$	44,648	$	32,901	$	(1,502	)	$	31,399	$	37,775		93.9	%		(18.1	%)		99.3	%		18.2	%
Total	$	452,179	$	(118,897	)	$	333,282	$	293,835	$	412,565	$	(106,030	)	$	306,535	$	267,992		9.6	%		12.1	%		8.7	%		9.6	%

	Six Months Ended June 30, 2017									Six Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	82,637	$	(36,971	)	$	45,666	$	44,506	$	89,350	$	(36,187	)	$	53,163	$	48,171		(7.5	%)		2.2	%		(14.1	%)		(7.6	%)
P&C		358,126		(89,345	)		268,781		240,349		309,932		(67,275	)		242,657		219,371		15.5	%		32.8	%		10.8	%		9.6	%
ProfessionalLiability		54,028		(9,028	)		45,000		46,236		55,289		(13,653	)		41,636		33,182		(2.3	%)		(33.9	%)		8.1	%		39.3	%
Total	$	494,791	$	(135,344	)	$	359,447	$	331,091	$	454,571	$	(117,115	)	$	337,456	$	300,724		8.8	%		15.6	%		6.5	%		10.1	%
Int'l Insurance
Marine	$	118,430	$	(23,462	)	$	94,968	$	77,020	$	113,095	$	(20,643	)	$	92,452	$	74,952		4.7	%		13.7	%		2.7	%		2.8	%
P&C		87,031		(50,008	)		37,023		45,517		107,048		(41,694	)		65,354		45,024		(18.7	%)		19.9	%		(43.4	%)		1.1	%
ProfessionalLiability		67,592		(16,932	)		50,660		43,649		59,740		(14,544	)		45,196		35,865		13.1	%		16.4	%		12.1	%		21.7	%
Total	$	273,053	$	(90,402	)	$	182,651	$	166,186	$	279,883	$	(76,881	)	$	203,002	$	155,841		(2.4	%)		17.6	%		(10.0	%)		6.6	%
GlobalRe	$	134,640	$	(6,293	)	$	128,347	$	82,689	$	91,988	$	(6,091	)	$	85,897	$	75,785		46.4	%		3.3	%		49.4	%		9.1	%
Total	$	902,484	$	(232,039	)	$	670,445	$	579,966	$	826,442	$	(200,087	)	$	626,355	$	532,350		9.2	%		16.0	%		7.0	%		8.9	%

XML

Investments

6 Months Ended

Jun. 30, 2017

Investments Debt And Equity Securities [Abstract]

Investments

NOTE 3.  INVESTMENTS

The following tables set forth our Company’s available-for-sale investments as of June 30, 2017 and December 31, 2016 and include Other-Than-Temporary-Impairment (“OTTI”) securities recognized within Accumulated Other Comprehensive Income (“AOCI”):

	June 30, 2017
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	264,511	$	2,888	$	(2,660	)	$	264,283
States, Municipalities and Political Subdivisions		655,064		19,306		(2,004	)		637,762
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		455,133		3,849		(5,389	)		456,673
Residential Mortgage Obligations		18,037		506		(25	)		17,556
Asset-Backed Securities		315,945		1,915		(478	)		314,508
Commercial Mortgage-Backed Securities		145,573		2,883		(1,432	)		144,122
Subtotal	$	934,688	$	9,153	$	(7,324	)	$	932,859
Corporate Exposures		896,141		17,490		(2,355	)		881,006
Total Fixed Maturities	$	2,750,404	$	48,837	$	(14,343	)	$	2,715,910
Equity Securities:
Common Stocks	$	172,456	$	30,985	$	(1,023	)	$	142,494
Preferred Stocks		179,606		10,088		(499	)		170,017
Total Equity Securities	$	352,062	$	41,073	$	(1,522	)	$	312,511
Short-Term Investments		130,881		283		—			130,598
Total Investments	$	3,233,347	$	90,193	$	(15,865	)	$	3,159,019

	December 31, 2016
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	273,776	$	2,192	$	(5,128	)	$	276,712
States, Municipalities and Political Subdivisions		547,415		11,542		(4,036	)		539,909
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		487,364		4,016		(6,585	)		489,933
Residential Mortgage Obligations		20,530		453		(55	)		20,132
Asset-Backed Securities		314,601		824		(1,178	)		314,955
Commercial Mortgage-Backed Securities		154,139		2,859		(1,904	)		153,184
Subtotal	$	976,634	$	8,152	$	(9,722	)	$	978,204
Corporate Exposures		838,057		10,185		(5,528	)		833,400
Total Fixed Maturities	$	2,635,882	$	32,071	$	(24,414	)	$	2,628,225
Equity Securities:
Common Stocks	$	164,087	$	24,677	$	(964	)	$	140,374
Preferred Stocks		185,055		2,339		(4,821	)		187,537
Total Equity Securities	$	349,142	$	27,016	$	(5,785	)	$	327,911
Short-Term Investments		143,539		88		—			143,451
Total Investments	$	3,128,563	$	59,175	$	(30,199	)	$	3,099,587

Corporate Exposures consist of investments in corporate bonds, hybrid bonds and redeemable preferred stocks.

During 2016, our Company made investments in certain companies, which are reported as Other Invested Assets on the Consolidated Balance Sheet and accounted for using the equity method.  In applying the equity method, these investments are initially recorded at cost and are subsequently adjusted based on our Company’s proportionate share of the net income or loss of the investments. Our initial purchase price for these investments was $2.0 million with a current carrying value of $1.8 million at June 30, 2017 as reflected on our Consolidated Balance Sheet.

As of June 30, 2017 and December 31, 2016, our Company did not have a concentration of greater than 5% of invested assets in a single non-government backed issuer.

As of June 30, 2017 and December 31, 2016, Fixed Maturities for which Non-Credit OTTI was previously recognized and included in AOCI were in a Net Unrealized Gain position of $0.4 million in each period.

The fair value of our Company’s investment portfolio may fluctuate significantly in response to various factors such as changes in interest rates, investment quality ratings, equity prices, foreign exchange rates and credit spreads. Our Company does not have the intent to sell nor is it more likely than not that it will have to sell Fixed Maturities in unrealized loss positions that are not other-than-temporarily impaired before recovery. For structured securities, default probability and severity assumptions differ based on property type, vintage and the stress of the collateral. Our Company does not intend to sell, and it is more likely than not that our Company will not be required to sell, these securities before the recovery of the amortized cost basis. For Equity Securities, our Company also considers our intent to hold securities as part of the process of evaluating whether a decline in fair value represents an other-than-temporary decline in value. Our Company may realize investment losses to the extent our liquidity needs require the disposition of Fixed Maturity securities in unfavorable interest rate, liquidity or credit spread environments. Significant changes in the factors our Company considers when evaluating investments for impairment losses could result in a significant change in impairment losses reported in the Consolidated Financial Statements.

The contractual maturity dates for Fixed Maturities categorized by the number of years until maturity as of June 30, 2017 are shown in the following table:

	June 30, 2017
	Fair		Amortized
amounts in thousands	Value		Cost
Due in one year or less	$	208,510	$	208,573
Due after one year through five years		719,399		714,152
Due after five years through ten years		313,225		305,230
Due after ten years		574,582		555,096
Mortgage-Backed and Asset-Backed Securities		934,688		932,859
Total	$	2,750,404	$	2,715,910

Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Prepayment assumptions associated with the Mortgage-Backed and Asset-Backed Securities are reviewed on a periodic basis. When changes in prepayment assumptions are deemed necessary as the result of actual prepayments differing from anticipated prepayments, securities are revalued based upon the new prepayment assumptions utilizing the retrospective accounting method. Due to the periodic repayment of principal, our Mortgage-Backed and Asset-Backed Securities are estimated to have an effective maturity of approximately 4.9 years.

The following tables summarize all securities in a gross unrealized loss position as of June 30, 2017 and December 31, 2016, showing the aggregate fair value and gross unrealized loss by the length of time those securities have continuously been in a gross unrealized loss position:

	June 30, 2017
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	127,900	$	(1,339	)	$	17,878	$	(1,321	)	$	145,778	$	(2,660	)
States, Municipalities and Political Subdivisions		75,488		(1,405	)		21,502		(599	)		96,990		(2,004	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		307,616		(4,995	)		11,068		(394	)		318,684		(5,389	)
Residential Mortgage Obligations		262		(1	)		746		(24	)		1,008		(25	)
Asset-Backed Securities		77,936		(465	)		2,694		(13	)		80,630		(478	)
Commercial Mortgage-Backed Securities		33,780		(651	)		6,359		(781	)		40,139		(1,432	)
Subtotal	$	419,594	$	(6,112	)	$	20,867	$	(1,212	)	$	440,461	$	(7,324	)
Corporate Exposures		214,720		(2,207	)		20,848		(148	)		235,568		(2,355	)
Total Fixed Maturities	$	837,702	$	(11,063	)	$	81,095	$	(3,280	)	$	918,797	$	(14,343	)
Equity Securities:
Common Stocks	$	26,598	$	(1,023	)	$	—	$	—		$	26,598	$	(1,023	)
Preferred Stocks		21,604		(467	)		528		(32	)		22,132		(499	)
Total Equity Securities	$	48,202	$	(1,490	)	$	528	$	(32	)	$	48,730	$	(1,522	)
Total Fixed Maturities and Equity Securities	$	885,904	$	(12,553	)	$	81,623	$	(3,312	)	$	967,527	$	(15,865	)

	December 31, 2016
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	150,891	$	(2,570	)	$	16,819	$	(2,558	)	$	167,710	$	(5,128	)
States, Municipalities and Political Subdivisions		137,731		(3,111	)		13,255		(925	)		150,986		(4,036	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		349,119		(6,155	)		12,401		(430	)		361,520		(6,585	)
Residential Mortgage Obligations		953		(18	)		926		(37	)		1,879		(55	)
Asset-Backed Securities		95,514		(970	)		48,093		(208	)		143,607		(1,178	)
Commercial Mortgage-Backed Securities		51,932		(1,164	)		7,910		(740	)		59,842		(1,904	)
Subtotal	$	497,518	$	(8,307	)	$	69,330	$	(1,415	)	$	566,848	$	(9,722	)
Corporate Exposures		325,733		(5,086	)		26,005		(442	)		351,738		(5,528	)
Total Fixed Maturities	$	1,111,873	$	(19,074	)	$	125,409	$	(5,340	)	$	1,237,282	$	(24,414	)
Equity Securities:
Common Stocks	$	31,272	$	(634	)	$	1,471	$	(330	)	$	32,743	$	(964	)
Preferred Stocks		113,742		(4,785	)		523		(36	)		114,265		(4,821	)
Total Equity Securities	$	145,014	$	(5,419	)	$	1,994	$	(366	)	$	147,008	$	(5,785	)
Total Fixed Maturities and Equity Securities	$	1,256,887	$	(24,493	)	$	127,403	$	(5,706	)	$	1,384,290	$	(30,199	)

Our Company analyzes impaired securities quarterly to determine if any impairments are other-than-temporary.  The above securities with unrealized losses are deemed to be temporarily impaired based on our evaluation.  

As of June 30, 2017, there were 321 Fixed Maturities and 40 Equity Securities in an unrealized loss position. As of December 31, 2016, there were 413 Fixed Maturities and 75 Equity Securities in an unrealized loss position. As of June 30, 2017 and December 31, 2016, the gross unrealized loss for the greater than 12 months category consists primarily of Agency and Foreign Government Bonds principally due to an unfavorable foreign exchange movement. To a lesser extent the gross unrealized loss for the greater than 12 months category is driven by unrealized losses on our longer dated Municipal Bonds and one Commercial Mortgage-Backed Security which were impacted by rising interest rates and widening credit spreads. The gross unrealized loss for the less than 12 months category for the period ended June 30, 2017 and December 31, 2016 consists primarily of Agency Mortgage-Backed Securities and Corporate Exposures due to an increase in interest rates since the time of purchase.    

As of June 30, 2017 and December 31, 2016, the largest unrealized loss by a non-government backed issuer in the investment portfolio was $0.9 million and $1.0 million, respectively.

Our Company’s ability to hold securities is supported by sufficient cash flow from our operations and from maturities within our investment portfolio in order to meet our claims payments and other disbursement obligations arising from our underwriting operations without selling such investments.  With respect to securities where the decline in value is determined to be temporary and the security’s value is not written down, a subsequent decision may be made to sell that security and realize a loss.  Subsequent decisions on security sales are made within the context of overall risk monitoring, changing information and market conditions.  

Our Company had no credit related OTTI losses during the three months ended June 30, 2017. Our Company had two credit related OTTI losses of $1.1 million in the equity portfolio during the six months ended June 30, 2017. Our Company had one credit related OTTI loss of $0.2 million in the Fixed Maturities portfolio during the three and six months ended June 30, 2016.

The following table summarizes the cumulative amounts related to our Company’s credit loss portion of the OTTI losses on Fixed Maturities for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,				Six Months Ended June 30,
amounts in thousands	2017		2016		2017		2016
Beginning Balance	$	2,361	$	2,361	$	2,361	$	2,361
Additions for Credit Loss Impairments recognized in the    current period on securities not previously impaired		—		150		—		150
Additions for Credit Loss Impairments recognized in the    current period on securities previously impaired		—		—		—		—
Reductions for Credit Loss Impairments previously    recognized  on securities sold during the period		—		—		—		—
Ending Balance	$	2,361	$	2,511	$	2,361	$	2,511

Our Company’s Net Investment Income was derived from the following sources:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities	$	19,186		$	16,920		$	37,527		$	33,657
Equity Securities		3,780			3,431			7,564			6,878
Short-Term Investments		200			288			412			498
Total Investment Income	$	23,166		$	20,639		$	45,503		$	41,033
Investment Expenses		(901	)		(764	)		(1,790	)		(1,564	)
Net Investment Income	$	22,265		$	19,875		$	43,713		$	39,469

Realized Gains and Losses, excluding net OTTI losses recognized in earnings, for the periods indicated, were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities:
Gains	$	344		$	1,296		$	812		$	3,844
Losses		(958	)		(738	)		(2,214	)		(1,865	)
Fixed Maturities, Net	$	(614	)	$	558		$	(1,402	)	$	1,979
Short-Term:
Gains	$	135		$	407		$	247		$	675
Losses		(69	)		(60	)		(260	)		(143	)
Short-Term, Net	$	66		$	347		$	(13	)	$	532
Equity Securities:
Gains	$	2,470		$	1,071		$	4,386		$	1,680
Losses		(228	)		(16	)		(228	)		(634	)
Equity Securities, Net	$	2,242		$	1,055		$	4,158		$	1,046
Net Realized Gains	$	1,694		$	1,960		$	2,743		$	3,557

XML

Fair Value Measurement

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurement

NOTE 4.  FAIR VALUE MEASUREMENT

The fair value of our financial instruments is determined based on the following fair value hierarchy:

Level 1 – Quoted prices for identical instruments in active markets.  Examples are listed Common Stocks and fixed income securities traded on an exchange.  U.S. Treasury securities are reported as Level 1 and are valued based on unadjusted quoted prices for identical assets in active markets that our Company can access.

Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.  Examples are Asset-Backed and Mortgage-Backed Securities that are similar to other Asset-Backed or Mortgage-Backed Securities observed in the market. U.S. Government Agency Securities are reported as Level 2 and are valued using yields and spreads that are observable in active markets.

Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.  An example would be a private placement with minimal liquidity.

The following tables present, for each of the fair value hierarchy levels as defined by the accounting guidance for fair value measurements described above, our Company’s Fixed Maturities and Equity Securities by asset class that are measured at fair value on a recurring basis, as well as the fair value of the 5.75% Senior Notes due October 15, 2023 (the “Senior Notes”) carried at amortized cost as of June 30, 2017 and December 31, 2016:

	June 30, 2017
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	58,932	$	205,579	$	—	$	264,511
States, Municipalities and Political Subdivisions		—		655,064		—		655,064
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		455,133		—		455,133
Residential Mortgage Obligations		—		18,037		—		18,037
Asset-Backed Securities		—		315,945		—		315,945
Commercial Mortgage-Backed Securities		—		145,573		—		145,573
Subtotal	$	—	$	934,688	$	—	$	934,688
Corporate Exposures		—		896,141		—		896,141
Total Fixed Maturities	$	58,932	$	2,691,472	$	—	$	2,750,404
Equity Securities:
Common Stocks	$	172,456	$	—	$	—	$	172,456
Preferred Stocks		—		179,606		—		179,606
Total Equity Securities	$	172,456	$	179,606	$	—	$	352,062
Short-Term Investments		130,881		—		—		130,881
Total Assets Measured at Fair Value	$	362,269	$	2,871,078	$	—	$	3,233,347
Senior Notes	$	—	$	283,237	$	—	$	283,237
Total Liabilities Measured at Fair Value	$	—	$	283,237	$	—	$	283,237

	December 31, 2016
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	47,704	$	226,072	$	—	$	273,776
States, Municipalities and Political Subdivisions		—		547,415		—		547,415
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		487,364		—		487,364
Residential Mortgage Obligations		—		20,530		—		20,530
Asset-Backed Securities		—		314,601		—		314,601
Commercial Mortgage-Backed Securities		—		154,139		—		154,139
Subtotal	$	—	$	976,634	$	—	$	976,634
Corporate Exposures		—		838,057		—		838,057
Total Fixed Maturities	$	47,704	$	2,588,178	$	—	$	2,635,882
Equity Securities:
Common Stocks	$	164,087	$	—	$	—	$	164,087
Preferred Stocks		—		185,055		—		185,055
Total Equity Securities	$	164,087	$	185,055	$	—	$	349,142
Short-Term Investments		143,539		—		—		143,539
Total Assets Measured at Fair Value	$	355,330	$	2,773,233	$	—	$	3,128,563
Senior Notes	$	—	$	280,316	$	—	$	280,316
Total Liabilities Measured at Fair Value	$	—	$	280,316	$	—	$	280,316

All other financial assets and liabilities including Cash, Premium Receivable, Reinsurance Recoverable and Reinsurance Balances Payable are carried at cost, which approximates fair value.

Our Company did not have any significant transfers between Level 1 and Level 2 classifications for the three and six months ended June 30, 2017 and 2016.

As of June 30, 2017, our Company did not have any Level 3 assets.

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Loss Reserves

6 Months Ended

Jun. 30, 2017

Insurance [Abstract]

Loss Reserves

NOTE 5.  LOSS RESERVES

We establish reserves for the estimated unpaid ultimate liability for losses and LAE under the terms of our policies and agreements.  The determination of Reserves for Losses and LAE is partially dependent upon the receipt of information from agents and brokers.  Reserves include estimates for both claims that have been reported and for those that have been incurred but not reported (“IBNR”), and include estimates of expenses associated with processing and settling these claims.  Reserves are recorded in Reserves for Losses and LAE in the Consolidated Balance Sheets.  Our estimates and judgements may be revised as additional experience and other data become available and are reviewed, as new or improved methodologies are developed, or as laws change. Frequency/severity analyses are also performed for certain books of business.  To the extent that reserves are found deficient or redundant, a strengthening or release is recognized as a charge or credit to earnings.

The following table summarizes our Company’s Reserves for Losses and LAE activity for the six months ended June 30, 2017 and 2016:

	For the Six Months Ended June 30,
amounts in thousands	2017			2016
Net Reserves for Losses and LAE at Beginning of Year	$	1,510,451		$	1,393,126
Provision for Losses and LAE for Claims Occurring in the Current Year		331,595			330,775
Increase (Decrease) in Estimated Losses and LAE for Claims Occurring in Prior Years		15,115			(10,613	)
Incurred Losses and LAE	$	346,710		$	320,162
Losses and LAE Paid for Claims Occurring During:
Current Year		(47,235	)		(37,641	)
Prior Years		(249,895	)		(212,938	)
Losses and LAE Payments	$	(297,130	)	$	(250,579	)
Foreign Currency Adjustment		3,432			(8,207	)
Net Reserves for Losses and LAE at End of Period		1,563,463			1,454,502
Reinsurance Recoverables on Unpaid Losses and LAE		782,864			814,261
Gross Reserves for Losses and LAE at End of Period	$	2,346,327		$	2,268,763

For the six months ended June 30, 2017, our Incurred Losses and LAE increased $26.5 million as compared to the same period in 2016.

The Provision for Losses and LAE for Claims Occurring in the Current Year increased primarily due to growth in production increasing Net Earned Premium. This increase was partially offset by $10.9 million less of additional net current AY loss activity primarily related to a lower level of large event losses during the six months ended June 30, 2017 compared to the same period in 2016, which included the Alberta Wildfires, Ecuador Earthquake and Taiwan Earthquake.

In addition, we incurred $15.1 million of net prior accident year (“AY”) reserve strengthening for the six months ended June 30, 2017 primarily related to attritional loss development in our Int’l Insurance reporting segment and the settlement of a large claim in our GlobalRe reporting segment compared to $10.6 million of net prior AY reserve releases for the same period in 2016attributable to better than expected loss emergence within all three reporting segments.

For the six months ended June 30, 2017, our Losses and LAE Payments increased $46.6 million as compared to the same period in 2016, primarily due to increased claim payments in our Int’l Insurance reporting segment.

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Ceded Reinsurance

6 Months Ended

Jun. 30, 2017

Insurance [Abstract]

Ceded Reinsurance

NOTE 6. CEDED REINSURANCE

As of June 30, 2017, the credit quality distribution of our Company’s Reinsurance Recoverable of $1.1 billion for ceded paid losses, ceded unpaid losses and LAE, and ceded unearned premiums based on insurer financial strength ratings from A.M. Best or S&P was not significantly different from the credit quality distribution as of December 31, 2016.

Our allowance for uncollectible reinsurance was $12.1 million as of June 30, 2017 and December 31, 2016.

As of June 30, 2017, the list of our 10 largest reinsurers measured by the amount of Reinsurance Recoverable for ceded losses and LAE and ceded unearned premium, together with the reinsurance recoverable and collateral, was comparable to the list as of December 31, 2016.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 7.  COMMITMENTS AND CONTINGENCIES

In 2013, the State of Connecticut (“the State”) awarded our Company up to $11.5 million ($8.0 million in loans and $3.5 million in grants) to move our corporate headquarters to Stamford, Connecticut.  The loan is non-interest bearing, has a term of 10 years and is subject to forgiveness based on our compliance with certain conditions set forth in the agreement with the State.  The amount of the loan to be received is dependent on our Company reaching certain milestones for creation of new jobs over a five-year period, and the funds are to be used to offset certain equipment purchases, facility costs, training of employees and other eligible project-related costs.  As of June 30, 2017, our Company had received $9.9 million of the award ($7.5 million in loans and $2.4 million of the grant) and earned a loan forgiveness credit of $7.0 million with the State. Our Company is recognizing the amount of loan and grants received over the period in which offsetting expenses are recognized. Our Company recognized $0.3 million and $0.6 million of the incentive for the three and six months ended June 30, 2017. As of June 30, 2017 and December 31, 2016, our Company has deferred revenue of $5.2 million and $4.8 million, respectively, which is included in Other Liabilities on the Consolidated Balance Sheets.

On February 16, 2017, our Company entered into a guarantee, pursuant to which it guaranteed all of the liabilities and obligations of NIIC (the “Guarantee”). The Guarantee will remain effective until all of such liabilities and obligations are discharged, and in the event that our Company does not meet its obligations under the Guarantee, any person who is covered by an insurance policy, certificate of coverage or reinsurance contract issued by NIIC will be a third party beneficiary under the Guarantee.  Our Company’s obligations under the Guarantee may be terminated by providing twelve months prior written notice to NIIC. However the obligations of our Company under the Guarantee terminate immediately in the event that (i) the majority of the outstanding voting capital stock in NIIC is sold to any non-affiliated entity; (ii) A.M. Best has confirmed that NIIC will receive the same financial strength rating as NIC or NSIC, without the benefit of the Guarantee; or (iii) NIIC withdraws its request to be rated by A.M. Best, provided that NIIC has not been downgraded within the prior twelve months.

In the ordinary course of conducting business, our Parent Company’s subsidiaries are involved in various legal proceedings. Most of these proceedings consist of claims litigation involving our Parent Company’s subsidiaries as either: (a) liability insurers defending or providing indemnity for third party claims brought against insureds or (b) insurers defending first party coverage claims brought against them. In general, our Company believes we have valid defenses to these cases. Our Company’s management believes that the ultimate liability, if any, with respect to these legal proceedings, after consideration of provisions made for potential losses and cost of defense, will not be material to our Company’s Consolidated Balance Sheets, Statements of Income and Statements of Cash Flows.

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

NOTE 8.  STOCK-BASED COMPENSATION

Stock-based compensation granted under our Company’s stock plans is expensed in tranches over the vesting period. Non-performance based grants generally vest equally over a three or four-year period. Performance units generally cliff vest three years after they are granted. For the six months ended June 30, 2017, we granted 261,733 stock incentive units at a weighted average grant price of $55.74. Each performance unit and restricted stock unit represents a contingent right to receive one share of Common Stock as of the vesting date. Such Common Stock may be subject to forfeiture for the payment of any required tax withholding.

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Stockholders Equity

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Stockholders' Equity

NOTE 9. STOCKHOLDERS’ EQUITY

On June 30, 2017 our Company paid a dividend of $0.06 per share on The Navigators Group, Inc. Common Stock to Stockholders of record on June 9, 2017. 

The declaration and amount of any future dividend will be at the discretion of the Board of Directors, and will depend upon many factors, including financial condition, results of operations, business requirements, regulatory, legal constraints and other factors the Board of Directors deems relevant.

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Subsequent Events

6 Months Ended

Jun. 30, 2017

Subsequent Events [Abstract]

Subsequent Events

NOTE 10. SUBSEQUENT EVENTS

On August 3, 2017, our Board of Directors declared a cash dividend on our Company’s Common Stock of $0.06 per share, payable on September 14, 2017 to stockholders of record on August 24, 2017.

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Organization and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Organization

Organization

We are an international insurance company with a long-standing area of specialization in Marine insurance. We also offer Property and Casualty (“P&C”) insurance, primarily general liability coverage and umbrella & excess liability coverage to commercial enterprises through our Primary and Excess Casualty divisions. We have also developed niches in Professional Liability insurance, through our Directors & Officers (“D&O”) and Errors & Omissions (“E&O”) divisions, as well as assumed reinsurance products.

We operate through various wholly-owned insurance and service companies. Our subsidiaries domiciled in the United States (“U.S.”) include two insurance companies, Navigators Insurance Company (“NIC”) and Navigators Specialty Insurance Company (“NSIC”), as well as our U.S. underwriting agency, Navigators Management Company (“NMC”). NIC includes a branch in the United Kingdom (“U.K”). We also have operations domiciled in the U.K., Hong Kong and Europe. Navigators International Insurance Company Ltd. (“NIIC”), Navigators Management (U.K.) Ltd. (“NMUK”) and Navigators Underwriting Ltd. (“NUL”) are domiciled in the U.K. and NUL includes European branches. Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s of London (“Lloyd’s”) underwriting agency, manages and provides the capital, through Navigators Corporate Underwriters Ltd. (“NCUL”), for our Lloyd’s Syndicate 1221 (the “Syndicate”), and is also domiciled in the U.K. We control 100% of the Syndicate’s stamp capacity.

Effective January 1, 2017, we sold our underwriting agency operations in Sweden and Denmark. The transaction represented a 100% disposition of our Sweden and Denmark corporations, NUAL AB and Navigators A/S, respectively. This transaction did not have a material impact on our financial statements.

Basis of Presentation

Basis of Presentation

The Consolidated Balance Sheet at June 30, 2017 and the Consolidated Statements of Income, Comprehensive Income, Stockholders’ Equity and Cash Flows for the periods ended June 30, 2017 and 2016 are unaudited. The Balance Sheet at December 31, 2016 is derived from our audited Financial Statements. The accompanying Interim Consolidated Financial Statements reflect all adjustments, which, in the opinion of management, are necessary to fairly present the results of our Company for the interim periods presented on the basis of U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X as promulgated by the U.S. Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. All significant intercompany transactions and balances have been eliminated in consolidation. The preparation of these Financial Statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the Financial Statements and the reported revenues and expenses during the reporting periods. The results of operations for any interim period are not necessarily indicative of results for the full year. The Interim Consolidated Financial Statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2016. Certain amounts for the prior period have been reclassified to conform with the current period presentation.

Reclassification

Certain amounts for the prior period have been reclassified to conform with the current period presentation.

Income Taxes

Income Taxes

The interim income tax provision has been computed based on our estimated annual Effective Tax Rate, which represents our best estimate on a year to date basis for the interim period. As a result, the tax provision for a given quarter equals the difference between the provision recorded cumulatively year to date less the amount recorded cumulatively as of the end of the prior interim period. Our Effective Tax Rate for the quarter and year to date differs from the federal tax rate of 35% primarily due to an excess tax benefit related to the vesting of stock compensation at fair market value, tax-exempt investment income and dividends received deduction.

Starting in the first quarter of 2017, excess tax benefits related to the vesting of stock compensation were recognized as a reduction to Income Tax Expense rather than as an increase to Additional Paid-In Capital as a result of the adoption of the Accounting Standards Update (“ASU”) 2016-09 (see section New Accounting Standards Adopted in 2017 of this footnote for further information on the adoption of this standard).

Significant Accounting Policies

Significant Accounting Policies

There were no changes in our significant accounting policies subsequent to our Annual Report on Form 10-K for the year ended December 31, 2016.

New Accounting Standards Adopted in 2017

New Accounting Standards Adopted in 2017

Share-Based Compensation Accounting

Effective January 1, 2017, our Company adopted ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” issued by the Financial Accounting Standards Board (the “FASB”). This guidance requires all income tax effects of awards to be recognized in the income statement when the awards vest or are settled, eliminates the requirement that excess tax benefits be realized before companies can recognize them, requires the presentation of excess tax benefits as an operating activity on the statement of cash flows, allows employers to increase the amounts withheld to cover income taxes on share-based compensation awards without requiring liability classification, requires the presentation of employee taxes paid as a financing activity on the statement of cash flows, and requires companies to elect whether they will account for award forfeitures by recognizing forfeitures only as they occur or by estimating the number of awards expected to be forfeited.

The requirement to recognize all income tax effects of awards in the income statement when the awards vest or are settled was adopted on a prospective basis. Previously, these amounts were recorded in Additional Paid-In Capital. This change also prospectively impacts the calculation of potential common shares used to determine Diluted Net Income per Common Share under the treasury stock method. The new standard requires that assumed proceeds under the treasury stock method be modified to exclude the amount of excess tax benefits that previously would have been recognized in Additional Paid-In Capital.

We elected to account for forfeitures of share-based payment awards by recognizing forfeitures of awards as they occur, and upon adoption of this guidance, the payment of employee taxes was retrospectively adjusted on the Consolidated Statements of Cash Flows to be classified as a financing activity. All other changes in the ASU did not result in cumulative-effect or retrospective adjustments. The adoption of this guidance did not materially impact our results of operations, financial condition or liquidity.

Transition to Equity Method of Accounting

Effective January 1, 2017, our Company adopted the ASU 2016-07, “Simplifying the Transition to the Equity Method of Accounting” issued by the FASB. This guidance eliminates the requirement to retrospectively apply equity method accounting when an investment that had been accounted for by another method initially qualifies for the equity method. Our Company did not have any investments transitioning to the equity method of accounting during the six months ended June 30, 2017. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Share-Based Compensation Modification Accounting

During the second quarter of 2017, our Company early adopted the ASU 2017-09, “Scope of Modification Accounting” issued by the FASB. This guidance clarifies when changes to the terms or conditions of a share-based award must be accounted for as modifications. Under the new guidance, modification accounting is required if the value, vesting conditions or classification of the award changes. This guidance will be applied prospectively to awards modified on or after the adoption date. The adoption of this guidance did not impact our results of operations, financial condition or liquidity.

Recently Issued Accounting Standards Not Yet Adopted

Recently Issued Accounting Standards Not Yet Adopted

Definition of a Business

In January 2017, the FASB issued ASU 2017-01, “Clarifying the Definition of a Business” with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This guidance is effective for annual periods beginning after December 15, 2017, and interim periods within those fiscal years with early adoption permitted. This guidance will be applied prospectively to any transactions occurring within the period of adoption.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment” that eliminates the requirement to calculate the implied fair value of goodwill (i.e., Step 2 of the current goodwill impairment test) to measure a goodwill impairment charge. Instead, an impairment charge will be based on the excess of a reporting unit’s carrying amount over its fair value (i.e., measure the charge based on Step 1 of the current goodwill impairment test). This guidance is effective for annual and interim impairment tests performed in periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. This guidance will be adopted on a prospective basis.

Callable Debt Securities

In March 2017, the FASB issued ASU 2017-08, “Premium Amortization on Purchased Callable Debt Securities” that shortens the amortization period for the premium on certain purchased callable debt securities to the earliest call date. This guidance is effective for annual periods beginning after December 15, 2018, and interim periods within those fiscal years with early adoption permitted. This guidance will be adopted using a modified retrospective transition approach. The adoption of this guidance is not expected to materially impact our results of operations, financial condition or liquidity.

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Financial Data by Segment

Financial data by segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	167,087		$	82,100		$	44,648		$	—		$	293,835
Net Losses and LAE		(105,270	)		(44,095	)		(27,745	)		—			(177,110	)
Commission Expenses		(20,460	)		(19,001	)		(8,970	)		258			(48,173	)
Other Operating Expenses		(33,140	)		(22,506	)		(5,120	)		—			(60,766	)
Other Underwriting Income (Expense)		100			—			169			(258	)		11
Underwriting Profit (Loss)	$	8,317		$	(3,502	)	$	2,982		$	—		$	7,797
Net Investment Income											22,265			22,265
Net Realized Gains											1,694			1,694
Interest Expense											(3,861	)		(3,861	)
Other Loss											(422	)		(422	)
Income (Loss) Before Income Taxes	$	8,317		$	(3,502	)	$	2,982		$	19,676		$	27,473
Income Tax Expense											(6,971	)		(6,971	)
Net Income													$	20,502
Losses and LAE Ratio		63.0	%		53.7	%		62.1	%					60.3	%
Commission Expense Ratio		12.2	%		23.1	%		20.1	%					16.4	%
Other Operating Expense Ratio (2)		19.8	%		27.5	%		11.1	%					20.6	%
Combined Ratio		95.0	%		104.3	%		93.3	%					97.3	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Three Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	152,384		$	77,833		$	37,775		$	—		$	267,992
Net Losses and LAE		(93,428	)		(48,066	)		(25,712	)		—			(167,206	)
Commission Expenses		(16,894	)		(16,821	)		(7,492	)		481			(40,726	)
Other Operating Expenses		(31,570	)		(23,043	)		(4,461	)		—			(59,074	)
Other Underwriting Income (Expense)		342			—			203			(481	)		64
Underwriting Profit (Loss)	$	10,834		$	(10,097	)	$	313		$	—		$	1,050
Net Investment Income											19,875			19,875
Net Realized Gains											1,810			1,810
Interest Expense											(3,858	)		(3,858	)
Other Income											4,366			4,366
Income (Loss) Before Income Taxes	$	10,834		$	(10,097	)	$	313		$	22,193		$	23,243
Income Tax Expense											(7,053	)		(7,053	)
Net Income													$	16,190
Losses and LAE Ratio		61.3	%		61.8	%		68.1	%					62.4	%
Commission Expense Ratio		11.1	%		21.6	%		19.8	%					15.2	%
Other Operating Expense Ratio (2)		20.5	%		29.6	%		11.3	%					22.0	%
Combined Ratio		92.9	%		113.0	%		99.2	%					99.6	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2017
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate (1)			Total
Net Earned Premiums	$	331,091		$	166,186		$	82,689		$	—		$	579,966
Net Losses and LAE		(204,096	)		(94,800	)		(47,814	)		—			(346,710	)
Commission Expenses		(40,844	)		(38,234	)		(17,462	)		523			(96,017	)
Other Operating Expenses		(66,612	)		(42,299	)		(10,393	)		—			(119,304	)
Other Underwriting Income (Expense)		210			—			345			(523	)		32
Underwriting Profit (Loss)	$	19,749		$	(9,147	)	$	7,365		$	—		$	17,967
Net Investment Income											43,713			43,713
Net Realized Gains											1,650			1,650
Interest Expense											(7,722	)		(7,722	)
Other Income											625			625
Income (Loss) Before Income Taxes	$	19,749		$	(9,147	)	$	7,365		$	38,266		$	56,233
Income Tax Expense											(14,621	)		(14,621	)
Net Income													$	41,612
Losses and LAE Ratio		61.6	%		57.0	%		57.8	%					59.8	%
Commission Expense Ratio		12.3	%		23.0	%		21.1	%					16.6	%
Other Operating Expense Ratio (2)		20.1	%		25.5	%		12.2	%					20.5	%
Combined Ratio		94.0	%		105.5	%		91.1	%					96.9	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

	Six Months Ended June 30, 2016
	U.S.			Int'l
amounts in thousands	Insurance			Insurance			GlobalRe			Corporate(1)			Total
Net Earned Premiums	$	300,724		$	155,841		$	75,785		$	—		$	532,350
Net Losses and LAE		(184,940	)		(88,476	)		(46,746	)		—			(320,162	)
Commission Expenses		(31,749	)		(32,176	)		(15,237	)		882			(78,280	)
Other Operating Expenses		(65,331	)		(44,814	)		(9,738	)		—			(119,883	)
Other Underwriting Income (Expense)		703			—			252			(882	)		73
Underwriting Profit (Loss)	$	19,407		$	(9,625	)	$	4,316		$	—		$	14,098
Net Investment Income											39,469			39,469
Net Realized Gains											3,407			3,407
Interest Expense											(7,716	)		(7,716	)
Other Income											6,906			6,906
Income (Loss) Before Income Taxes	$	19,407		$	(9,625	)	$	4,316		$	42,066		$	56,164
Income Tax Expense											(17,042	)		(17,042	)
Net Income													$	39,122
Losses and LAE Ratio		61.5	%		56.8	%		61.7	%					60.1	%
Commission Expense Ratio		10.6	%		20.6	%		20.1	%					14.7	%
Other Operating Expense Ratio (2)		21.4	%		28.8	%		12.5	%					22.6	%
Combined Ratio		93.5	%		106.2	%		94.3	%					97.4	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other Operating Expenses and Other Underwriting Income (Expense).

Revenue by Operating Segment

Revenue by operating segment for the three and six months ended June 30, 2017 and 2016 was as follows:

	Three Months Ended June 30, 2017									Three Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			Net Written Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	41,687	$	(19,451	)	$	22,236	$	21,812	$	46,187	$	(18,540	)	$	27,647	$	24,921		(9.7	%)		4.9	%		(19.6	%)		(12.5	%)
P&C		187,492		(51,147	)		136,345		121,226		168,654		(36,768	)		131,886		110,212		11.2	%		39.1	%		3.4	%		10.0	%
ProfessionalLiability		28,007		(3,259	)		24,748		24,049		29,083		(7,310	)		21,773		17,251		(3.7	%)		(55.4	%)		13.7	%		39.4	%
Total	$	257,186	$	(73,857	)	$	183,329	$	167,087	$	243,924	$	(62,618	)	$	181,306	$	152,384		5.4	%		17.9	%		1.1	%		9.6	%
Int'l Insurance
Marine	$	49,597	$	(12,536	)	$	37,061	$	39,525	$	41,147	$	(9,554	)	$	31,593	$	36,096		20.5	%		31.2	%		17.3	%		9.5	%
P&C		46,663		(20,362	)		26,301		23,337		63,002		(24,465	)		38,537		23,815		(25.9	%)		(16.8	%)		(31.8	%)		(2.0	%)
Professional Liability		34,933		(10,911	)		24,022		19,238		31,591		(7,891	)		23,700		17,922		10.6	%		38.3	%		1.4	%		7.3	%
Total	$	131,193	$	(43,809	)	$	87,384	$	82,100	$	135,740	$	(41,910	)	$	93,830	$	77,833		(3.3	%)		4.5	%		(6.9	%)		5.5	%
GlobalRe	$	63,800	$	(1,231	)	$	62,569	$	44,648	$	32,901	$	(1,502	)	$	31,399	$	37,775		93.9	%		(18.1	%)		99.3	%		18.2	%
Total	$	452,179	$	(118,897	)	$	333,282	$	293,835	$	412,565	$	(106,030	)	$	306,535	$	267,992		9.6	%		12.1	%		8.7	%		9.6	%

	Six Months Ended June 30, 2017									Six Months Ended June 30, 2016									% Change
amounts in thousands	Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums		Ceded Written Premiums			NetWritten Premiums		Net Earned Premiums		Gross Written Premiums			Ceded Written Premiums			NetWritten Premiums			Net Earned Premiums
U.S. Insurance
Marine	$	82,637	$	(36,971	)	$	45,666	$	44,506	$	89,350	$	(36,187	)	$	53,163	$	48,171		(7.5	%)		2.2	%		(14.1	%)		(7.6	%)
P&C		358,126		(89,345	)		268,781		240,349		309,932		(67,275	)		242,657		219,371		15.5	%		32.8	%		10.8	%		9.6	%
ProfessionalLiability		54,028		(9,028	)		45,000		46,236		55,289		(13,653	)		41,636		33,182		(2.3	%)		(33.9	%)		8.1	%		39.3	%
Total	$	494,791	$	(135,344	)	$	359,447	$	331,091	$	454,571	$	(117,115	)	$	337,456	$	300,724		8.8	%		15.6	%		6.5	%		10.1	%
Int'l Insurance
Marine	$	118,430	$	(23,462	)	$	94,968	$	77,020	$	113,095	$	(20,643	)	$	92,452	$	74,952		4.7	%		13.7	%		2.7	%		2.8	%
P&C		87,031		(50,008	)		37,023		45,517		107,048		(41,694	)		65,354		45,024		(18.7	%)		19.9	%		(43.4	%)		1.1	%
ProfessionalLiability		67,592		(16,932	)		50,660		43,649		59,740		(14,544	)		45,196		35,865		13.1	%		16.4	%		12.1	%		21.7	%
Total	$	273,053	$	(90,402	)	$	182,651	$	166,186	$	279,883	$	(76,881	)	$	203,002	$	155,841		(2.4	%)		17.6	%		(10.0	%)		6.6	%
GlobalRe	$	134,640	$	(6,293	)	$	128,347	$	82,689	$	91,988	$	(6,091	)	$	85,897	$	75,785		46.4	%		3.3	%		49.4	%		9.1	%
Total	$	902,484	$	(232,039	)	$	670,445	$	579,966	$	826,442	$	(200,087	)	$	626,355	$	532,350		9.2	%		16.0	%		7.0	%		8.9	%

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Investments (Tables)

6 Months Ended

Jun. 30, 2017

Investments Debt And Equity Securities [Abstract]

Available-for-Sale Investments Including Other-Than-Temporarily Impaired Securities Recognized within Accumulated Other Comprehensive Income

The following tables set forth our Company’s available-for-sale investments as of June 30, 2017 and December 31, 2016 and include Other-Than-Temporary-Impairment (“OTTI”) securities recognized within Accumulated Other Comprehensive Income (“AOCI”):

	June 30, 2017
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	264,511	$	2,888	$	(2,660	)	$	264,283
States, Municipalities and Political Subdivisions		655,064		19,306		(2,004	)		637,762
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		455,133		3,849		(5,389	)		456,673
Residential Mortgage Obligations		18,037		506		(25	)		17,556
Asset-Backed Securities		315,945		1,915		(478	)		314,508
Commercial Mortgage-Backed Securities		145,573		2,883		(1,432	)		144,122
Subtotal	$	934,688	$	9,153	$	(7,324	)	$	932,859
Corporate Exposures		896,141		17,490		(2,355	)		881,006
Total Fixed Maturities	$	2,750,404	$	48,837	$	(14,343	)	$	2,715,910
Equity Securities:
Common Stocks	$	172,456	$	30,985	$	(1,023	)	$	142,494
Preferred Stocks		179,606		10,088		(499	)		170,017
Total Equity Securities	$	352,062	$	41,073	$	(1,522	)	$	312,511
Short-Term Investments		130,881		283		—			130,598
Total Investments	$	3,233,347	$	90,193	$	(15,865	)	$	3,159,019

	December 31, 2016
			Gross		Gross			Cost or
	Fair		Unrealized		Unrealized			Amortized
amounts in thousands	Value		Gains		(Losses)			Cost
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	273,776	$	2,192	$	(5,128	)	$	276,712
States, Municipalities and Political Subdivisions		547,415		11,542		(4,036	)		539,909
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		487,364		4,016		(6,585	)		489,933
Residential Mortgage Obligations		20,530		453		(55	)		20,132
Asset-Backed Securities		314,601		824		(1,178	)		314,955
Commercial Mortgage-Backed Securities		154,139		2,859		(1,904	)		153,184
Subtotal	$	976,634	$	8,152	$	(9,722	)	$	978,204
Corporate Exposures		838,057		10,185		(5,528	)		833,400
Total Fixed Maturities	$	2,635,882	$	32,071	$	(24,414	)	$	2,628,225
Equity Securities:
Common Stocks	$	164,087	$	24,677	$	(964	)	$	140,374
Preferred Stocks		185,055		2,339		(4,821	)		187,537
Total Equity Securities	$	349,142	$	27,016	$	(5,785	)	$	327,911
Short-Term Investments		143,539		88		—			143,451
Total Investments	$	3,128,563	$	59,175	$	(30,199	)	$	3,099,587

Scheduled Maturity Dates for Fixed Maturity Securities by Number of Years Until Maturity

The contractual maturity dates for Fixed Maturities categorized by the number of years until maturity as of June 30, 2017 are shown in the following table:

	June 30, 2017
	Fair		Amortized
amounts in thousands	Value		Cost
Due in one year or less	$	208,510	$	208,573
Due after one year through five years		719,399		714,152
Due after five years through ten years		313,225		305,230
Due after ten years		574,582		555,096
Mortgage-Backed and Asset-Backed Securities		934,688		932,859
Total	$	2,750,404	$	2,715,910

Summary of Aggregate Fair Value and Gross Unrealized Loss by Length of Time Securities had Continuously been in Gross Unrealized Loss Position

The following tables summarize all securities in a gross unrealized loss position as of June 30, 2017 and December 31, 2016, showing the aggregate fair value and gross unrealized loss by the length of time those securities have continuously been in a gross unrealized loss position:

	June 30, 2017
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	127,900	$	(1,339	)	$	17,878	$	(1,321	)	$	145,778	$	(2,660	)
States, Municipalities and Political Subdivisions		75,488		(1,405	)		21,502		(599	)		96,990		(2,004	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		307,616		(4,995	)		11,068		(394	)		318,684		(5,389	)
Residential Mortgage Obligations		262		(1	)		746		(24	)		1,008		(25	)
Asset-Backed Securities		77,936		(465	)		2,694		(13	)		80,630		(478	)
Commercial Mortgage-Backed Securities		33,780		(651	)		6,359		(781	)		40,139		(1,432	)
Subtotal	$	419,594	$	(6,112	)	$	20,867	$	(1,212	)	$	440,461	$	(7,324	)
Corporate Exposures		214,720		(2,207	)		20,848		(148	)		235,568		(2,355	)
Total Fixed Maturities	$	837,702	$	(11,063	)	$	81,095	$	(3,280	)	$	918,797	$	(14,343	)
Equity Securities:
Common Stocks	$	26,598	$	(1,023	)	$	—	$	—		$	26,598	$	(1,023	)
Preferred Stocks		21,604		(467	)		528		(32	)		22,132		(499	)
Total Equity Securities	$	48,202	$	(1,490	)	$	528	$	(32	)	$	48,730	$	(1,522	)
Total Fixed Maturities and Equity Securities	$	885,904	$	(12,553	)	$	81,623	$	(3,312	)	$	967,527	$	(15,865	)

	December 31, 2016
	Less than 12 months					Greater than 12 months					Total
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
amounts in thousands	Value		(Losses)			Value		(Losses)			Value		(Losses)
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	150,891	$	(2,570	)	$	16,819	$	(2,558	)	$	167,710	$	(5,128	)
States, Municipalities and Political Subdivisions		137,731		(3,111	)		13,255		(925	)		150,986		(4,036	)
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		349,119		(6,155	)		12,401		(430	)		361,520		(6,585	)
Residential Mortgage Obligations		953		(18	)		926		(37	)		1,879		(55	)
Asset-Backed Securities		95,514		(970	)		48,093		(208	)		143,607		(1,178	)
Commercial Mortgage-Backed Securities		51,932		(1,164	)		7,910		(740	)		59,842		(1,904	)
Subtotal	$	497,518	$	(8,307	)	$	69,330	$	(1,415	)	$	566,848	$	(9,722	)
Corporate Exposures		325,733		(5,086	)		26,005		(442	)		351,738		(5,528	)
Total Fixed Maturities	$	1,111,873	$	(19,074	)	$	125,409	$	(5,340	)	$	1,237,282	$	(24,414	)
Equity Securities:
Common Stocks	$	31,272	$	(634	)	$	1,471	$	(330	)	$	32,743	$	(964	)
Preferred Stocks		113,742		(4,785	)		523		(36	)		114,265		(4,821	)
Total Equity Securities	$	145,014	$	(5,419	)	$	1,994	$	(366	)	$	147,008	$	(5,785	)
Total Fixed Maturities and Equity Securities	$	1,256,887	$	(24,493	)	$	127,403	$	(5,706	)	$	1,384,290	$	(30,199	)

Summary of Cumulative Amounts Related to Credit Loss Portion of Other-Than-Temporary Impairment Losses on Debt Securities

The following table summarizes the cumulative amounts related to our Company’s credit loss portion of the OTTI losses on Fixed Maturities for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,				Six Months Ended June 30,
amounts in thousands	2017		2016		2017		2016
Beginning Balance	$	2,361	$	2,361	$	2,361	$	2,361
Additions for Credit Loss Impairments recognized in the    current period on securities not previously impaired		—		150		—		150
Additions for Credit Loss Impairments recognized in the    current period on securities previously impaired		—		—		—		—
Reductions for Credit Loss Impairments previously    recognized  on securities sold during the period		—		—		—		—
Ending Balance	$	2,361	$	2,511	$	2,361	$	2,511

Net Investment Income

Our Company’s Net Investment Income was derived from the following sources:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities	$	19,186		$	16,920		$	37,527		$	33,657
Equity Securities		3,780			3,431			7,564			6,878
Short-Term Investments		200			288			412			498
Total Investment Income	$	23,166		$	20,639		$	45,503		$	41,033
Investment Expenses		(901	)		(764	)		(1,790	)		(1,564	)
Net Investment Income	$	22,265		$	19,875		$	43,713		$	39,469

Realized Gains and Losses, Excluding Net Other-Than-Temporary Impairment Losses Recognized in Earnings

Realized Gains and Losses, excluding net OTTI losses recognized in earnings, for the periods indicated, were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
amounts in thousands	2017			2016			2017			2016
Fixed Maturities:
Gains	$	344		$	1,296		$	812		$	3,844
Losses		(958	)		(738	)		(2,214	)		(1,865	)
Fixed Maturities, Net	$	(614	)	$	558		$	(1,402	)	$	1,979
Short-Term:
Gains	$	135		$	407		$	247		$	675
Losses		(69	)		(60	)		(260	)		(143	)
Short-Term, Net	$	66		$	347		$	(13	)	$	532
Equity Securities:
Gains	$	2,470		$	1,071		$	4,386		$	1,680
Losses		(228	)		(16	)		(228	)		(634	)
Equity Securities, Net	$	2,242		$	1,055		$	4,158		$	1,046
Net Realized Gains	$	1,694		$	1,960		$	2,743		$	3,557

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Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Fixed Maturities and Equity Securities by Asset Class that are Measured at Fair Value

The following tables present, for each of the fair value hierarchy levels as defined by the accounting guidance for fair value measurements described above, our Company’s Fixed Maturities and Equity Securities by asset class that are measured at fair value on a recurring basis, as well as the fair value of the 5.75% Senior Notes due October 15, 2023 (the “Senior Notes”) carried at amortized cost as of June 30, 2017 and December 31, 2016:

	June 30, 2017
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	58,932	$	205,579	$	—	$	264,511
States, Municipalities and Political Subdivisions		—		655,064		—		655,064
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		455,133		—		455,133
Residential Mortgage Obligations		—		18,037		—		18,037
Asset-Backed Securities		—		315,945		—		315,945
Commercial Mortgage-Backed Securities		—		145,573		—		145,573
Subtotal	$	—	$	934,688	$	—	$	934,688
Corporate Exposures		—		896,141		—		896,141
Total Fixed Maturities	$	58,932	$	2,691,472	$	—	$	2,750,404
Equity Securities:
Common Stocks	$	172,456	$	—	$	—	$	172,456
Preferred Stocks		—		179,606		—		179,606
Total Equity Securities	$	172,456	$	179,606	$	—	$	352,062
Short-Term Investments		130,881		—		—		130,881
Total Assets Measured at Fair Value	$	362,269	$	2,871,078	$	—	$	3,233,347
Senior Notes	$	—	$	283,237	$	—	$	283,237
Total Liabilities Measured at Fair Value	$	—	$	283,237	$	—	$	283,237

	December 31, 2016
amounts in thousands	Level 1		Level 2		Level 3		Total
Fixed Maturities:
U.S. Treasury Bonds, Agency Bonds and Foreign    Government Bonds	$	47,704	$	226,072	$	—	$	273,776
States, Municipalities and Political Subdivisions		—		547,415		—		547,415
Mortgage-Backed and Asset-Backed Securities:
Agency Mortgage-Backed Securities		—		487,364		—		487,364
Residential Mortgage Obligations		—		20,530		—		20,530
Asset-Backed Securities		—		314,601		—		314,601
Commercial Mortgage-Backed Securities		—		154,139		—		154,139
Subtotal	$	—	$	976,634	$	—	$	976,634
Corporate Exposures		—		838,057		—		838,057
Total Fixed Maturities	$	47,704	$	2,588,178	$	—	$	2,635,882
Equity Securities:
Common Stocks	$	164,087	$	—	$	—	$	164,087
Preferred Stocks		—		185,055		—		185,055
Total Equity Securities	$	164,087	$	185,055	$	—	$	349,142
Short-Term Investments		143,539		—		—		143,539
Total Assets Measured at Fair Value	$	355,330	$	2,773,233	$	—	$	3,128,563
Senior Notes	$	—	$	280,316	$	—	$	280,316
Total Liabilities Measured at Fair Value	$	—	$	280,316	$	—	$	280,316

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Loss Reserves (Tables)

6 Months Ended

Jun. 30, 2017

Insurance [Abstract]

Summary of Reserves for Losses and LAE Activity

The following table summarizes our Company’s Reserves for Losses and LAE activity for the six months ended June 30, 2017 and 2016:

	For the Six Months Ended June 30,
amounts in thousands	2017			2016
Net Reserves for Losses and LAE at Beginning of Year	$	1,510,451		$	1,393,126
Provision for Losses and LAE for Claims Occurring in the Current Year		331,595			330,775
Increase (Decrease) in Estimated Losses and LAE for Claims Occurring in Prior Years		15,115			(10,613	)
Incurred Losses and LAE	$	346,710		$	320,162
Losses and LAE Paid for Claims Occurring During:
Current Year		(47,235	)		(37,641	)
Prior Years		(249,895	)		(212,938	)
Losses and LAE Payments	$	(297,130	)	$	(250,579	)
Foreign Currency Adjustment		3,432			(8,207	)
Net Reserves for Losses and LAE at End of Period		1,563,463			1,454,502
Reinsurance Recoverables on Unpaid Losses and LAE		782,864			814,261
Gross Reserves for Losses and LAE at End of Period	$	2,346,327		$	2,268,763

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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) Insurance	Jan. 01, 2017
Organization And Summary Of Significant Accounting Policies [Line Items]
Number of insurance companies | Insurance	2
Percentage of ownership interest sold		100.00%
Federal tax rate	35.00%
Investments transitioning to equity method of accounting | $	$ 0
Syndicate 1221
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage control of stamp capacity	100.00%

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Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 Segment
Segment Reporting Information [Line Items]
Number of underwriting Segments	3
U.S.Insurance
Segment Reporting Information [Line Items]
Number of Operating Segments	3
International Insurance
Segment Reporting Information [Line Items]
Number of Operating Segments	3

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Financial Data by Segment (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Net Earned Premiums		$ 293,835	$ 267,992	$ 579,966	$ 532,350
Net Losses and LAE		(177,110)	(167,206)	(346,710)	(320,162)
Commission Expenses		(48,173)	(40,726)	(96,017)	(78,280)
Other Operating Expenses		(60,766)	(59,074)	(119,304)	(119,883)
Other Underwriting Income (Expense)		11	64	32	73
Underwriting Profit (Loss)		7,797	1,050	17,967	14,098
Net Investment Income		22,265	19,875	43,713	39,469
Net Realized Gains		1,694	1,810	1,650	3,407
Interest Expense		(3,861)	(3,858)	(7,722)	(7,716)
Other Income (Loss)		(422)	4,366	625	6,906
Income Before Income Taxes		27,473	23,243	56,233	56,164
Income Tax Expense		(6,971)	(7,053)	(14,621)	(17,042)
Net Income		$ 20,502	$ 16,190	$ 41,612	$ 39,122
Losses and LAE Ratio		60.30%	62.40%	59.80%	60.10%
Commission Expense Ratio		16.40%	15.20%	16.60%	14.70%
Other Operating Expense Ratio	[1]	20.60%	22.00%	20.50%	22.60%
Combined Ratio		97.30%	99.60%	96.90%	97.40%
U.S.Insurance
Segment Reporting Information [Line Items]
Net Earned Premiums		$ 167,087	$ 152,384	$ 331,091	$ 300,724
Net Losses and LAE		(105,270)	(93,428)	(204,096)	(184,940)
Commission Expenses		(20,460)	(16,894)	(40,844)	(31,749)
Other Operating Expenses		(33,140)	(31,570)	(66,612)	(65,331)
Other Underwriting Income (Expense)		100	342	210	703
Underwriting Profit (Loss)		8,317	10,834	19,749	19,407
Income Before Income Taxes		$ 8,317	$ 10,834	$ 19,749	$ 19,407
Losses and LAE Ratio		63.00%	61.30%	61.60%	61.50%
Commission Expense Ratio		12.20%	11.10%	12.30%	10.60%
Other Operating Expense Ratio	[1]	19.80%	20.50%	20.10%	21.40%
Combined Ratio		95.00%	92.90%	94.00%	93.50%
International Insurance
Segment Reporting Information [Line Items]
Net Earned Premiums		$ 82,100	$ 77,833	$ 166,186	$ 155,841
Net Losses and LAE		(44,095)	(48,066)	(94,800)	(88,476)
Commission Expenses		(19,001)	(16,821)	(38,234)	(32,176)
Other Operating Expenses		(22,506)	(23,043)	(42,299)	(44,814)
Underwriting Profit (Loss)		(3,502)	(10,097)	(9,147)	(9,625)
Income Before Income Taxes		$ (3,502)	$ (10,097)	$ (9,147)	$ (9,625)
Losses and LAE Ratio		53.70%	61.80%	57.00%	56.80%
Commission Expense Ratio		23.10%	21.60%	23.00%	20.60%
Other Operating Expense Ratio	[1]	27.50%	29.60%	25.50%	28.80%
Combined Ratio		104.30%	113.00%	105.50%	106.20%
Global Reinsurance
Segment Reporting Information [Line Items]
Net Earned Premiums		$ 44,648	$ 37,775	$ 82,689	$ 75,785
Net Losses and LAE		(27,745)	(25,712)	(47,814)	(46,746)
Commission Expenses		(8,970)	(7,492)	(17,462)	(15,237)
Other Operating Expenses		(5,120)	(4,461)	(10,393)	(9,738)
Other Underwriting Income (Expense)		169	203	345	252
Underwriting Profit (Loss)		2,982	313	7,365	4,316
Income Before Income Taxes		$ 2,982	$ 313	$ 7,365	$ 4,316
Losses and LAE Ratio		62.10%	68.10%	57.80%	61.70%
Commission Expense Ratio		20.10%	19.80%	21.10%	20.10%
Other Operating Expense Ratio	[1]	11.10%	11.30%	12.20%	12.50%
Combined Ratio		93.30%	99.20%	91.10%	94.30%
Corporate
Segment Reporting Information [Line Items]
Net Investment Income	[2]	$ 22,265	$ 19,875	$ 43,713	$ 39,469
Net Realized Gains	[2]	1,694	1,810	1,650	3,407
Interest Expense	[2]	(3,861)	(3,858)	(7,722)	(7,716)
Other Income (Loss)	[2]	(422)	4,366	625	6,906
Income Before Income Taxes	[2]	19,676	22,193	38,266	42,066
Income Tax Expense	[2]	(6,971)	(7,053)	(14,621)	(17,042)
Intersegment Elimination
Segment Reporting Information [Line Items]
Commission Expenses	[2]	258	481	523	882
Other Underwriting Income (Expense)	[2]	$ (258)	$ (481)	$ (523)	$ (882)

[1] Includes Other Operating Expenses and Other Underwriting Income (Expense).

[2] Includes Corporate segment intercompany eliminations.

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Revenue by Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 452,179	$ 412,565	$ 902,484	$ 826,442
Ceded Written Premiums	(118,897)	(106,030)	(232,039)	(200,087)
Net Written Premiums	333,282	306,535	670,445	626,355
Net Earned Premiums	$ 293,835	267,992	$ 579,966	532,350
% Change Gross Written Premiums	9.60%		9.20%
% Change Ceded Written Premiums	12.10%		16.00%
% Change Net Written Premiums	8.70%		7.00%
% Change Net Earned Premiums	9.60%		8.90%
U.S.Insurance
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 257,186	243,924	$ 494,791	454,571
Ceded Written Premiums	(73,857)	(62,618)	(135,344)	(117,115)
Net Written Premiums	183,329	181,306	359,447	337,456
Net Earned Premiums	$ 167,087	152,384	$ 331,091	300,724
% Change Gross Written Premiums	5.40%		8.80%
% Change Ceded Written Premiums	17.90%		15.60%
% Change Net Written Premiums	1.10%		6.50%
% Change Net Earned Premiums	9.60%		10.10%
U.S.Insurance | Marine
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 41,687	46,187	$ 82,637	89,350
Ceded Written Premiums	(19,451)	(18,540)	(36,971)	(36,187)
Net Written Premiums	22,236	27,647	45,666	53,163
Net Earned Premiums	$ 21,812	24,921	$ 44,506	48,171
% Change Gross Written Premiums	(9.70%)		(7.50%)
% Change Ceded Written Premiums	4.90%		2.20%
% Change Net Written Premiums	(19.60%)		(14.10%)
% Change Net Earned Premiums	(12.50%)		(7.60%)
U.S.Insurance | Property Casualty
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 187,492	168,654	$ 358,126	309,932
Ceded Written Premiums	(51,147)	(36,768)	(89,345)	(67,275)
Net Written Premiums	136,345	131,886	268,781	242,657
Net Earned Premiums	$ 121,226	110,212	$ 240,349	219,371
% Change Gross Written Premiums	11.20%		15.50%
% Change Ceded Written Premiums	39.10%		32.80%
% Change Net Written Premiums	3.40%		10.80%
% Change Net Earned Premiums	10.00%		9.60%
U.S.Insurance | Professional Liability
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 28,007	29,083	$ 54,028	55,289
Ceded Written Premiums	(3,259)	(7,310)	(9,028)	(13,653)
Net Written Premiums	24,748	21,773	45,000	41,636
Net Earned Premiums	$ 24,049	17,251	$ 46,236	33,182
% Change Gross Written Premiums	(3.70%)		(2.30%)
% Change Ceded Written Premiums	(55.40%)		(33.90%)
% Change Net Written Premiums	13.70%		8.10%
% Change Net Earned Premiums	39.40%		39.30%
International Insurance
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 131,193	135,740	$ 273,053	279,883
Ceded Written Premiums	(43,809)	(41,910)	(90,402)	(76,881)
Net Written Premiums	87,384	93,830	182,651	203,002
Net Earned Premiums	$ 82,100	77,833	$ 166,186	155,841
% Change Gross Written Premiums	(3.30%)		(2.40%)
% Change Ceded Written Premiums	4.50%		17.60%
% Change Net Written Premiums	(6.90%)		(10.00%)
% Change Net Earned Premiums	5.50%		6.60%
International Insurance | Marine
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 49,597	41,147	$ 118,430	113,095
Ceded Written Premiums	(12,536)	(9,554)	(23,462)	(20,643)
Net Written Premiums	37,061	31,593	94,968	92,452
Net Earned Premiums	$ 39,525	36,096	$ 77,020	74,952
% Change Gross Written Premiums	20.50%		4.70%
% Change Ceded Written Premiums	31.20%		13.70%
% Change Net Written Premiums	17.30%		2.70%
% Change Net Earned Premiums	9.50%		2.80%
International Insurance | Property Casualty
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 46,663	63,002	$ 87,031	107,048
Ceded Written Premiums	(20,362)	(24,465)	(50,008)	(41,694)
Net Written Premiums	26,301	38,537	37,023	65,354
Net Earned Premiums	$ 23,337	23,815	$ 45,517	45,024
% Change Gross Written Premiums	(25.90%)		(18.70%)
% Change Ceded Written Premiums	(16.80%)		19.90%
% Change Net Written Premiums	(31.80%)		(43.40%)
% Change Net Earned Premiums	(2.00%)		1.10%
International Insurance | Professional Liability
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 34,933	31,591	$ 67,592	59,740
Ceded Written Premiums	(10,911)	(7,891)	(16,932)	(14,544)
Net Written Premiums	24,022	23,700	50,660	45,196
Net Earned Premiums	$ 19,238	17,922	$ 43,649	35,865
% Change Gross Written Premiums	10.60%		13.10%
% Change Ceded Written Premiums	38.30%		16.40%
% Change Net Written Premiums	1.40%		12.10%
% Change Net Earned Premiums	7.30%		21.70%
Global Reinsurance
Segment Reporting Information [Line Items]
Gross Written Premiums	$ 63,800	32,901	$ 134,640	91,988
Ceded Written Premiums	(1,231)	(1,502)	(6,293)	(6,091)
Net Written Premiums	62,569	31,399	128,347	85,897
Net Earned Premiums	$ 44,648	$ 37,775	$ 82,689	$ 75,785
% Change Gross Written Premiums	93.90%		46.40%
% Change Ceded Written Premiums	(18.10%)		3.30%
% Change Net Written Premiums	99.30%		49.40%
% Change Net Earned Premiums	18.20%		9.10%

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Available-for-Sale Investments Including Other-Than-Temporarily Impaired Securities Recognized within Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Gain (Loss) on Investments [Line Items]
Total investments	$ 3,233,347	$ 3,128,563
Gross Unrealized Gains	90,193	59,175
Gross Unrealized Losses	(15,865)	(30,199)
Amortized Cost	3,159,019	3,099,587
Fixed Maturities
Gain (Loss) on Investments [Line Items]
Total investments	2,750,404	2,635,882
Gross Unrealized Gains	48,837	32,071
Gross Unrealized Losses	(14,343)	(24,414)
Amortized Cost	2,715,910	2,628,225
Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Gain (Loss) on Investments [Line Items]
Total investments	264,511	273,776
Gross Unrealized Gains	2,888	2,192
Gross Unrealized Losses	(2,660)	(5,128)
Amortized Cost	264,283	276,712
Fixed Maturities | States, Municipalities and Political Subdivisions
Gain (Loss) on Investments [Line Items]
Total investments	655,064	547,415
Gross Unrealized Gains	19,306	11,542
Gross Unrealized Losses	(2,004)	(4,036)
Amortized Cost	637,762	539,909
Fixed Maturities | Agency Mortgage-Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments	455,133	487,364
Gross Unrealized Gains	3,849	4,016
Gross Unrealized Losses	(5,389)	(6,585)
Amortized Cost	456,673	489,933
Fixed Maturities | Residential Mortgage Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments	18,037	20,530
Gross Unrealized Gains	506	453
Gross Unrealized Losses	(25)	(55)
Amortized Cost	17,556	20,132
Fixed Maturities | Asset-Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments	315,945	314,601
Gross Unrealized Gains	1,915	824
Gross Unrealized Losses	(478)	(1,178)
Amortized Cost	314,508	314,955
Fixed Maturities | Commercial Mortgage-Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments	145,573	154,139
Gross Unrealized Gains	2,883	2,859
Gross Unrealized Losses	(1,432)	(1,904)
Amortized Cost	144,122	153,184
Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments	934,688	976,634
Gross Unrealized Gains	9,153	8,152
Gross Unrealized Losses	(7,324)	(9,722)
Amortized Cost	932,859	978,204
Fixed Maturities | Corporate Exposures
Gain (Loss) on Investments [Line Items]
Total investments	896,141	838,057
Gross Unrealized Gains	17,490	10,185
Gross Unrealized Losses	(2,355)	(5,528)
Amortized Cost	881,006	833,400
Equity Securities
Gain (Loss) on Investments [Line Items]
Total investments	352,062	349,142
Gross Unrealized Gains	41,073	27,016
Gross Unrealized Losses	(1,522)	(5,785)
Amortized Cost	312,511	327,911
Equity Securities | Common Stocks
Gain (Loss) on Investments [Line Items]
Total investments	172,456	164,087
Gross Unrealized Gains	30,985	24,677
Gross Unrealized Losses	(1,023)	(964)
Amortized Cost	142,494	140,374
Equity Securities | Preferred Stocks
Gain (Loss) on Investments [Line Items]
Total investments	179,606	185,055
Gross Unrealized Gains	10,088	2,339
Gross Unrealized Losses	(499)	(4,821)
Amortized Cost	170,017	187,537
Short-Term Investments
Gain (Loss) on Investments [Line Items]
Total investments	130,881	143,539
Gross Unrealized Gains	283	88
Amortized Cost	$ 130,598	$ 143,451

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Investments - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($) Security	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Security	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Security
Schedule of Investments [Line Items]
Other Invested Assets	$ 1,781		$ 1,781		$ 1,960
Non-credit OTTI on fixed maturities in a net unrealized gain position			400		400
Gross Unrealized Loss	15,865		$ 15,865		$ 30,199
OTTI losses	$ 0
Equity Securities
Schedule of Investments [Line Items]
Number of securities in unrealized loss position | Security	40		40		75
Gross Unrealized Loss	$ 1,522		$ 1,522		$ 5,785
OTTI losses			$ 1,100
Fixed Maturities
Schedule of Investments [Line Items]
Number of securities in unrealized loss position | Security	321		321		413
Gross Unrealized Loss	$ 14,343		$ 14,343		$ 24,414
OTTI losses		$ 200		$ 200
Non-government-backed securities | Maximum
Schedule of Investments [Line Items]
Percentage of investment	5.00%		5.00%		5.00%
Gross Unrealized Loss	$ 900		$ 900		$ 1,000
Mortgage-Backed and Asset-Backed Securities
Schedule of Investments [Line Items]
Securities, effective maturities			4 years 10 months 24 days
Mortgage-Backed and Asset-Backed Securities | Fixed Maturities
Schedule of Investments [Line Items]
Gross Unrealized Loss	$ 7,324		$ 7,324		$ 9,722

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Scheduled Maturity Dates for Fixed Maturity Securities by Number of Years Until Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value
Due in one year or less	$ 208,510
Due after one year through five years	719,399
Due after five years through ten years	313,225
Due after ten years	574,582
Mortgage-Backed and Asset-Backed Securities	934,688
Total	2,750,404	$ 2,635,882
Amortized Cost
Due in one year or less	208,573
Due after one year through five years	714,152
Due after five years through ten years	305,230
Due after ten years	555,096
Mortgage-Backed and Asset-Backed Securities	932,859
Total	$ 2,715,910	$ 2,628,225

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Summary of Aggregate Fair Value and Gross Unrealized Loss by Length of Time Securities had Continuously been in Gross Unrealized Loss Position as Well as Number of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	$ 885,904	$ 1,256,887
Less than 12 months Gross Unrealized Losses	(12,553)	(24,493)
Greater than 12 months Fair Value	81,623	127,403
Greater than 12 months Gross Unrealized Losses	(3,312)	(5,706)
Fair Value	967,527	1,384,290
Gross Unrealized Losses	(15,865)	(30,199)
Fixed Maturities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	837,702	1,111,873
Less than 12 months Gross Unrealized Losses	(11,063)	(19,074)
Greater than 12 months Fair Value	81,095	125,409
Greater than 12 months Gross Unrealized Losses	(3,280)	(5,340)
Fair Value	918,797	1,237,282
Gross Unrealized Losses	(14,343)	(24,414)
Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	127,900	150,891
Less than 12 months Gross Unrealized Losses	(1,339)	(2,570)
Greater than 12 months Fair Value	17,878	16,819
Greater than 12 months Gross Unrealized Losses	(1,321)	(2,558)
Fair Value	145,778	167,710
Gross Unrealized Losses	(2,660)	(5,128)
Fixed Maturities | States, Municipalities and Political Subdivisions
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	75,488	137,731
Less than 12 months Gross Unrealized Losses	(1,405)	(3,111)
Greater than 12 months Fair Value	21,502	13,255
Greater than 12 months Gross Unrealized Losses	(599)	(925)
Fair Value	96,990	150,986
Gross Unrealized Losses	(2,004)	(4,036)
Fixed Maturities | Agency Mortgage-Backed Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	307,616	349,119
Less than 12 months Gross Unrealized Losses	(4,995)	(6,155)
Greater than 12 months Fair Value	11,068	12,401
Greater than 12 months Gross Unrealized Losses	(394)	(430)
Fair Value	318,684	361,520
Gross Unrealized Losses	(5,389)	(6,585)
Fixed Maturities | Residential Mortgage Backed Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	262	953
Less than 12 months Gross Unrealized Losses	(1)	(18)
Greater than 12 months Fair Value	746	926
Greater than 12 months Gross Unrealized Losses	(24)	(37)
Fair Value	1,008	1,879
Gross Unrealized Losses	(25)	(55)
Fixed Maturities | Asset-Backed Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	77,936	95,514
Less than 12 months Gross Unrealized Losses	(465)	(970)
Greater than 12 months Fair Value	2,694	48,093
Greater than 12 months Gross Unrealized Losses	(13)	(208)
Fair Value	80,630	143,607
Gross Unrealized Losses	(478)	(1,178)
Fixed Maturities | Commercial Mortgage-Backed Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	33,780	51,932
Less than 12 months Gross Unrealized Losses	(651)	(1,164)
Greater than 12 months Fair Value	6,359	7,910
Greater than 12 months Gross Unrealized Losses	(781)	(740)
Fair Value	40,139	59,842
Gross Unrealized Losses	(1,432)	(1,904)
Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	419,594	497,518
Less than 12 months Gross Unrealized Losses	(6,112)	(8,307)
Greater than 12 months Fair Value	20,867	69,330
Greater than 12 months Gross Unrealized Losses	(1,212)	(1,415)
Fair Value	440,461	566,848
Gross Unrealized Losses	(7,324)	(9,722)
Fixed Maturities | Corporate Exposures
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	214,720	325,733
Less than 12 months Gross Unrealized Losses	(2,207)	(5,086)
Greater than 12 months Fair Value	20,848	26,005
Greater than 12 months Gross Unrealized Losses	(148)	(442)
Fair Value	235,568	351,738
Gross Unrealized Losses	(2,355)	(5,528)
Equity Securities
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	48,202	145,014
Less than 12 months Gross Unrealized Losses	(1,490)	(5,419)
Greater than 12 months Fair Value	528	1,994
Greater than 12 months Gross Unrealized Losses	(32)	(366)
Fair Value	48,730	147,008
Gross Unrealized Losses	(1,522)	(5,785)
Equity Securities | Common Stocks
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	26,598	31,272
Less than 12 months Gross Unrealized Losses	(1,023)	(634)
Greater than 12 months Fair Value	0	1,471
Greater than 12 months Gross Unrealized Losses	0	(330)
Fair Value	26,598	32,743
Gross Unrealized Losses	(1,023)	(964)
Equity Securities | Preferred Stocks
Gain (Loss) on Investments [Line Items]
Less than 12 months Fair Value	21,604	113,742
Less than 12 months Gross Unrealized Losses	(467)	(4,785)
Greater than 12 months Fair Value	528	523
Greater than 12 months Gross Unrealized Losses	(32)	(36)
Fair Value	22,132	114,265
Gross Unrealized Losses	$ (499)	$ (4,821)

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Summary of Cumulative Amounts Related to Credit Loss Portion of Other-Than-Temporary Impairment Losses on Debt Securities (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Investments Debt And Equity Securities [Abstract]
Beginning Balance	$ 2,361	$ 2,361	$ 2,361	$ 2,361
Additions for Credit Loss Impairments recognized in the current period on securities not previously impaired	0	150	0	150
Additions for Credit Loss Impairments recognized in the current period on securities previously impaired	0	0	0	0
Reductions for Credit Loss Impairments previously recognized on securities sold during the period	0	0	0	0
Ending Balance	$ 2,361	$ 2,511	$ 2,361	$ 2,511

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Net Investment Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Investment Income [Line Items]
Investment Income	$ 23,166	$ 20,639	$ 45,503	$ 41,033
Investment Expenses	(901)	(764)	(1,790)	(1,564)
Net Investment Income	22,265	19,875	43,713	39,469
Fixed Maturities
Net Investment Income [Line Items]
Investment Income	19,186	16,920	37,527	33,657
Equity Securities
Net Investment Income [Line Items]
Investment Income	3,780	3,431	7,564	6,878
Short-Term Investments
Net Investment Income [Line Items]
Investment Income	$ 200	$ 288	$ 412	$ 498

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Realized Gains and Losses, Excluding Net Other-Than-Temporary Impairment Losses Recognized in Earnings (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Gain (Loss) on Investments [Line Items]
Net Realized Gains (Losses)	$ 1,694	$ 1,960	$ 2,743	$ 3,557
Fixed Maturities
Gain (Loss) on Investments [Line Items]
Gains	344	1,296	812	3,844
Losses	(958)	(738)	(2,214)	(1,865)
Net Realized Gains (Losses)	(614)	558	(1,402)	1,979
Short-Term Investments
Gain (Loss) on Investments [Line Items]
Gains	135	407	247	675
Losses	(69)	(60)	(260)	(143)
Net Realized Gains (Losses)	66	347	(13)	532
Equity Securities
Gain (Loss) on Investments [Line Items]
Gains	2,470	1,071	4,386	1,680
Losses	(228)	(16)	(228)	(634)
Net Realized Gains (Losses)	$ 2,242	$ 1,055	$ 4,158	$ 1,046

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Fair Value Measurement - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Significant transfers between Level 1 and Level 2	$ 0	$ 0
Level 3 assets	$ 0
5.75% Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate stated on senior notes	5.75%
Senior notes due date	Oct. 15, 2023

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Fixed Maturities and Equity Securities by Asset Class that are Measured at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	$ 3,233,347	$ 3,128,563
Total Liabilities Measured at Fair Value	283,237	280,316
Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	2,750,404	2,635,882
Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	264,511	273,776
Fixed Maturities | States, Municipalities and Political Subdivisions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	655,064	547,415
Fixed Maturities | Agency Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	455,133	487,364
Fixed Maturities | Residential Mortgage Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	18,037	20,530
Fixed Maturities | Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	315,945	314,601
Fixed Maturities | Commercial Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	145,573	154,139
Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	934,688	976,634
Fixed Maturities | Corporate Exposures
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	896,141	838,057
Equity Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	352,062	349,142
Equity Securities | Common Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	172,456	164,087
Equity Securities | Preferred Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	179,606	185,055
Short-Term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	130,881	143,539
Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, at Fair Value	283,237	280,316
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	362,269	355,330
Total Liabilities Measured at Fair Value	0	0
Level 1 | Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	58,932	47,704
Level 1 | Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	58,932	47,704
Level 1 | Fixed Maturities | States, Municipalities and Political Subdivisions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Agency Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Residential Mortgage Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Commercial Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Fixed Maturities | Corporate Exposures
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Equity Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	172,456	164,087
Level 1 | Equity Securities | Common Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	172,456	164,087
Level 1 | Equity Securities | Preferred Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 1 | Short-Term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	130,881	143,539
Level 1 | Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, at Fair Value	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	2,871,078	2,773,233
Total Liabilities Measured at Fair Value	283,237	280,316
Level 2 | Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	2,691,472	2,588,178
Level 2 | Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	205,579	226,072
Level 2 | Fixed Maturities | States, Municipalities and Political Subdivisions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	655,064	547,415
Level 2 | Fixed Maturities | Agency Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	455,133	487,364
Level 2 | Fixed Maturities | Residential Mortgage Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	18,037	20,530
Level 2 | Fixed Maturities | Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	315,945	314,601
Level 2 | Fixed Maturities | Commercial Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	145,573	154,139
Level 2 | Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	934,688	976,634
Level 2 | Fixed Maturities | Corporate Exposures
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	896,141	838,057
Level 2 | Equity Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	179,606	185,055
Level 2 | Equity Securities | Common Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 2 | Equity Securities | Preferred Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	179,606	185,055
Level 2 | Short-Term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 2 | Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, at Fair Value	283,237	280,316
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Total Liabilities Measured at Fair Value	0	0
Level 3 | Fixed Maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | U.S. Treasury Bonds, Agency Bonds, and Foreign
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | States, Municipalities and Political Subdivisions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Agency Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Residential Mortgage Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Commercial Mortgage-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Mortgage-Backed and Asset-Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Fixed Maturities | Corporate Exposures
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Equity Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Equity Securities | Common Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Equity Securities | Preferred Stocks
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Short-Term Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed Maturities and Equity Securities, at Fair Value	0	0
Level 3 | Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Senior Notes, at Fair Value	$ 0	$ 0

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Summary of Reserves for Losses and LAE Activity (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Insurance [Abstract]
Net Reserves for Losses and LAE at Beginning of Year	$ 1,510,451	$ 1,393,126
Provision for Losses and LAE for Claims Occurring in the Current Year	331,595	330,775
Increase (Decrease) in Estimated Losses and LAE for Claims Occurring in Prior Years	15,115	(10,613)
Incurred Losses and LAE	346,710	320,162
Losses and LAE Paid for Claims Occurring During:
Current Year	(47,235)	(37,641)
Prior Years	(249,895)	(212,938)
Losses and LAE Payments	(297,130)	(250,579)
Foreign Currency Adjustment	3,432	(8,207)
Net Reserves for Losses and LAE at End of Period	1,563,463	1,454,502
Reinsurance Recoverables on Unpaid Losses and LAE	782,864	814,261	$ 779,276
Gross Reserves for Losses and LAE at End of Period	$ 2,346,327	$ 2,268,763	$ 2,289,727

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Loss Reserves - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) Segment	Jun. 30, 2016 USD ($)
Insurance [Abstract]
Increase in incurred losses and LAE	$ 26,500
Net prior accident year reserve strengthening	$ 15,115	$ (10,613)
Number of reportable segments | Segment	3
Increase in additional net current AY loss activity	$ 10,900
Increase in losses and loss adjustment expense payments	$ 46,600

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Ceded Reinsurance - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Insurance [Abstract]
Reinsurance recoverables	$ 1,100.0
Reserve for uncollectible reinsurance amount	$ 12.1	$ 12.1

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2013	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Incentive awarded to the company by the State of Connecticut, total		$ 9.9	$ 11.5
Incentive awarded to the company by the State of Connecticut, non-interest bearing loans		7.5	8.0
Incentive awarded to the company by the State of Connecticut, grants		$ 2.4	$ 3.5
Non-interest bearing incentive loan term		10 years
Forgiveness awarded to the company by the state of Connecticut		$ 7.0
Incentive awarded to the company by the State of Connecticut, revenue recognized	$ 0.3	0.6
Incentive awarded to the company by the State of Connecticut, deferred revenue	$ 5.2	$ 5.2		$ 4.8

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Stock-Based Compensation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 $ / shares shares
Non-Performance Based Grants | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	3 years
Non-Performance Based Grants | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	4 years
Performance Based Grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	3 years
Stock incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units granted | shares	261,733
Stock incentive unit, weighted average grant price | $ / shares	$ 55.74

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Stockholders Equity - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 $ / shares
Equity [Abstract]
Common stock dividend paid per share	$ 0.06
Dividend payable record date	Jun. 09, 2017

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Subsequent Events - Additional Information (Detail) - $ / shares		3 Months Ended		6 Months Ended
	Aug. 03, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Subsequent Event [Line Items]
Cash Dividends Declared per Common Share		$ 0.06	$ 0.045	$ 0.105	$ 0.045
Dividend payable record date				Jun. 09, 2017
Subsequent Event
Subsequent Event [Line Items]
Dividend declaration date	Aug. 03, 2017
Cash Dividends Declared per Common Share	$ 0.06
Dividend payable date	Sep. 14, 2017
Dividend payable record date	Aug. 24, 2017