10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

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

For the quarterly period ended March 31, 2012

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.)
6 International Drive, Rye Brook, New York	10573
(Address of principal executive offices)	(Zip Code)

(914) 934-8999

(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  x    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  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definition of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check One):

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨	Smaller reporting company	¨

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

The number of common shares outstanding as of April 25, 2012 was 14,002,869.

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

INDEX

		Page Number
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets March 31, 2012 (Unaudited) and December 31, 2011		3
	Consolidated Statements of Income (Unaudited) Three Months Ended March 31, 2012 and 2011		4
	Consolidated Statements of Comprehensive Income (Unaudited) Three Months Ended March 31, 2012 and 2011		5
	Consolidated Statements of Stockholders’ Equity (Unaudited) Three Months Ended March 31, 2012		6
	Consolidated Statements of Cash Flows (Unaudited) Three Months Ended March 31, 2012 and 2011		7
	Notes to Interim Consolidated Financial Statements (Unaudited)		8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		27
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		56
Item 4.	Controls and Procedures		56
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		57
Item 1A.	Risk Factors		58
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		58
Item 3.	Defaults Upon Senior Securities		58
Item 4.	Mine Safety Disclosures		58
Item 5.	Other Information		58
Item 6.	Exhibits		59
Signatures			60
Index to Exhibits			61

2

Item 1. Financial Statements

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)

	March 31, 2012			December 31, 2011
	(Unaudited)
ASSETS
Investments and cash:
Fixed maturities, available-for-sale, at fair value (amortized cost: 2012, $1,863,076; 2011, $1,816,710)	$	1,943,563		$	1,888,069
Equity securities, available-for-sale, at fair value (cost: 2012, $75,479; 2011, $73,567)		102,400			95,849
Short-term investments, at cost which approximates fair value		202,977			122,220
Cash		45,508			127,360
Total investments and cash		2,294,448			2,233,498
Premiums receivable		344,397			255,725
Prepaid reinsurance premiums		172,216			164,162
Reinsurance recoverable on paid losses		51,694			43,791
Reinsurance recoverable on unpaid losses and loss adjustment expenses		856,720			845,445
Deferred policy acquisition costs		70,000			63,984
Accrued investment income		14,528			14,492
Goodwill and other intangible assets		7,009			6,869
Current income tax receivable, net		8,059			15,391
Other assets		28,456			26,650
Total assets	$	3,847,527		$	3,670,007
LIABILITIES AND STOCKHOLDERS’ EQUITY
Liabilities:
Reserves for losses and loss adjustment expenses	$	2,093,643		$	2,082,679
Unearned premiums		601,333			532,628
Reinsurance balances payable		130,664			108,699
Senior Notes		114,312			114,276
Deferred income tax, net		2,706			6,291
Accounts payable and other liabilities		86,652			21,999
Total liabilities		3,029,310			2,866,572
Stockholders’ equity:
Preferred stock, $.10 par value, authorized 1,000,000 shares, none issued	$	—		$	—
Common stock, $.10 par value, authorized 50,000,000 shares, issued 17,513,557 shares for 2012 and 17,467,615 shares for 2011		1,750			1,746
Additional paid-in capital		323,030			322,133
Treasury stock, at cost (3,511,380 shares for 2012 and 2011)		(155,801	)		(155,801	)
Retained earnings		573,013			565,109
Accumulated other comprehensive income		76,225			70,248
Total stockholders’ equity		818,217			803,435
Total liabilities and stockholders’ equity	$	3,847,527		$	3,670,007

The accompanying Notes to Interim Consolidated Financial Statements are an integral part of these financial statements.

3

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME (Unaudited)

(In thousands, except share and per share amounts)

	Three Months Ended March 31,
	2012			2011
Gross written premiums	$	343,149		$	296,283
Revenues:
Net written premiums	$	243,045		$	193,076
Change in unearned premiums		(59,926	)		(40,598	)
Net earned premiums		183,119			152,478
Net investment income		11,258			17,384
Total other-than-temporary impairment losses		(198	)		(263	)
Portion of loss recognized in other comprehensive income (pretax)		44			22
Net other-than-temporary impairment losses recognized in earnings		(154	)		(241	)
Net realized gains (losses)		1,842			(1,389	)
Other income (expense)		911			991
Total revenues		196,976			169,223
Expenses:
Net losses and loss adjustment expenses		117,985			116,788
Commission expenses		29,450			26,200
Other operating expenses		36,307			36,575
Interest expense		2,049			2,046
Total expenses		185,791			181,609
Income (loss) before income taxes		11,185			(12,386	)
Income tax expense (benefit)		3,281			(4,493	)
Net income (loss)	$	7,904		$	(7,893	)
Net income (loss) per common share:
Basic	$	0.57		$	(0.50	)
Diluted	$	0.56		$	(0.50	)
Average common shares outstanding:
Basic		13,979,442			15,738,693
Diluted		14,174,875			15,738,693

The accompanying Notes to Interim Consolidated Financial Statements are an integral part of these financial statements.

4

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

(In thousands)

	Three Months Ended March 31,
	2012			2011
Net income (loss)	$	7,904		$	(7,893	)
Other comprehensive income (loss):
Change in net unrealized gains (losses) on investments, net of deferred tax of $4,818 and $183 in 2012 and 2011, respectively (1)		8,949			38
Change in foreign currency translation gains (losses), net of deferred tax of $1,399 and $363 in 2012 and 2011, respectively		(2,972	)		931
Other comprehensive income (loss)		5,977			969
Comprehensive income (loss)	$	13,881		$	(6,924	)
(1)        Disclosure of reclassification amount, net of tax:
Unrealized gains (losses) on investments arising during period	$	9,421		$	183
Reclassification adjustment for net realized gains (losses) included in net income		(638	)		(123	)
Reclassification adjustment for other-than-temporary impairment losses recognized in net income		166			(22	)
Change in net unrealized gains (losses) on investments, net of tax	$	8,949		$	38

The accompanying Notes to Interim Consolidated Financial Statements are an integral part of these financial statements.

5

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Unaudited)

For the Three Months Ended March 31, 2012

(In thousands, except share amounts)

	Common Stock				Additional Paid-in Capital			Treasury Stock					Retained Earnings		Accumulated  Other Comprehensive Income (Loss)			Total Stockholders’ Equity
	Shares		Amount					Shares		Amount
Balance, December 31, 2011		17,467,615	$	1,746	$	322,133			3,511,380	$	(155,801	)	$	565,109	$	70,248		$	803,435
Net income		—		—		—			—		—			7,904		—			7,904
Changes in comprehensive income:
Change in net unrealized gain (loss) on investments		—		—		—			—		—			—		8,530			8,530
Change in net non-credit other-than-temporary impairment losses		—		—		—			—		—			—		419			419
Change in foreign currency translation gain (loss)		—		—		—			—		—			—		(2,972	)		(2,972	)
Total comprehensive income		—		—		—			—		—			—		5,977			5,977
Shares issued under stock plan		45,942		4		(315	)		—		—			—		—			(311	)
Share-based compensation		—		—		1,212			—		—			—		—			1,212
Balance, March 31, 2012		17,513,557	$	1,750	$	323,030			3,511,380	$	(155,801	)	$	573,013	$	76,225		$	818,217

The accompanying Notes to Interim Consolidated Financial Statements are an integral part of these financial statements.

6

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(In thousands)

	Three Months Ended March 31,
	2012			2011
Operating activities:
Net income (loss)	$	7,904		$	(7,893	)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation & amortization		1,054			976
Deferred income taxes		(6,217	)		(1,253	)
Net realized (gains) losses		(1,842	)		1,389
Net other-than-temporary losses recognized in earnings		154			241
Changes in assets and liabilities:
Reinsurance recoverable on paid and unpaid losses and loss adjustment expenses		(16,397	)		(21,796	)
Reserves for losses and loss adjustment expenses		30,326			45,092
Prepaid reinsurance premiums		(8,054	)		(6,483	)
Unearned premiums		68,705			47,076
Premiums receivable		(90,071	)		(62,762	)
Deferred policy acquisition costs		(6,017	)		(8,666	)
Accrued investment income		(36	)		(460	)
Reinsurance balances payable		21,965			25,720
Current income taxes		7,154			(3,240	)
Other		7,743			5,351
Net cash provided by (used in) operating activities		16,371			13,292
Investing activities:
Fixed maturities
Redemptions and maturities		47,523			56,672
Sales		273,529			42,106
Purchases		(371,071	)		(67,478	)
Equity securities
Sales		—			—
Purchases		(2,055	)		(24	)
Change in payable for securities		35,881			(8,378	)
Net change in short-term investments		(80,757	)		(14,713	)
Purchase of property and equipment		(1,586	)		(1,326	)
Net cash provided by (used in) investing activities		(98,536	)		6,859
Financing activities:
Purchase of treasury stock		—			(13,052	)
Proceeds of stock issued from employee stock purchase plan		313			124
Proceeds of stock issued from exercise of stock options		—			293
Net cash provided by (used in) financing activities		313			(12,635	)
Increase (decrease) in cash		(81,852	)		7,516
Cash at beginning of year		127,360			31,768
Cash at end of period	$	45,508		$	39,284
Supplemental cash information:
Income taxes paid, net	$	1,519		$	476
Interest paid	$	—		$	—
Issuance of stock to directors	$	242		$	210

The accompanying Notes to Interim Consolidated Financial Statements are an integral part of these financial statements.

7

THE NAVIGATORS GROUP, INC. AND SUBSIDIARIES

Notes to Interim Consolidated Financial Statements

(Unaudited)

Note 1. Accounting Policies

The accompanying interim consolidated financial statements are unaudited and reflect all adjustments which, in the opinion of management, are necessary to fairly present the results of The Navigators Group, Inc. and its subsidiaries for the interim periods presented on the basis of United States generally accepted accounting principles (“GAAP” or “U.S. GAAP”). All such adjustments are of a normal recurring nature. All significant intercompany transactions and balances have been eliminated. 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 term “the Company” as used herein is used to mean The Navigators Group, Inc. and its subsidiaries, unless the context otherwise requires. The term “Parent” or “Parent Company” are used to mean The Navigators Group, Inc. without its subsidiaries. These financial statements should be read in conjunction with the consolidated financial statements and notes contained in the Company’s 2011 Annual Report on Form 10-K. Certain amounts for the prior year have been reclassified to conform to the current year’s presentation.

Note 2. Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In September 2011, the FASB issued Accounting Standard Update (“ASU”) 2011-08 amending Codification topic 350 — Intangibles — Goodwill and Other. The amendment simplifies how goodwill is tested for impairment by permitting entities to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value as a basis for determining whether it is necessary to perform the two step goodwill impairment test. The amendment is effective for the interim and annual goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted, but the Company did not early adopt. Adoption of this amendment had no impact on the Company’s consolidated financial condition, results of operations or cash flows.

In June 2011, the FASB issued ASU 2011-05 amending Codification Topic 220 — Comprehensive Income. The amendment requires that other comprehensive income be either presented in a single continuous statement or two separate but consecutive statements. In addition, the amendment requires the disclosure of reclassification adjustments for items reclassified from other comprehensive income to net income on the face of the financial statements. The amendment is effective for the interim and annual periods beginning after December 15, 2011 and should be applied retrospectively. This standard only affected the Company’s presentation of comprehensive income and did not affect the Company’s consolidated financial position, results of operations, and cash flows.

In May 2011, the FASB issued ASU 2011-04 amending Codification Topic 820 — Fair Value Measurements and Disclosures. The amendments were intended to result in common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards (“IFRS”). The amendment expands and enhances current disclosures about fair value measurement and clarifies the FASB’s intent regarding the application of existing fair value measurement requirements in certain circumstances. The amendments are effective for the interim and annual periods beginning after December 15, 2011 and should be applied prospectively. Adoption of the amendment had no impact on the Company’s consolidated financial position, results of operations and cash flows.

8

In October 2010, the FASB issued ASU 2010-26 amending Codification Topic 944 – Financial Services – Insurance; Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts. The amendment clarifies which costs relating to the acquisition of new or renewal insurance contracts qualify for deferral. In addition, the amendment limits deferrable costs that can be capitalized to those that are incremental direct costs related to the successful acquisition of new or renewal insurance contracts. The amendment is effective for fiscal years and interim periods within a fiscal year, beginning after December 15, 2011. The guidance is to be applied prospectively upon effectiveness of the amendment, with retrospective application permitted, but not required. The Company did not early adopt. The Company adopted this guidance prospectively in the first quarter of 2012. The amount of acquisition costs capitalized during the period of adoption compared with the amount of acquisition costs that would have been capitalized during the period if the entity’s previous policy had been applied during this period resulted in a decrease in the amount capitalized of $0.9 million net of tax.

Note 3. Segment Information

The Company classifies its business into two underwriting segments consisting of the Insurance Companies segment (“Insurance Companies”) and the Lloyd’s Operations segment (“Lloyd’s Operations”), which are separately managed, and a Corporate segment (“Corporate”). Segment data for each of the two underwriting segments include allocations of the operating expenses of the wholly-owned underwriting management companies and the Parent Company’s operating expenses and related income tax amounts. The Corporate segment consists of the Parent Company’s investment income, interest expense and the related tax effect.

The Company evaluates the performance of each underwriting segment based on its underwriting and GAAP results. The Insurance Companies’ and the Lloyd’s Operations’ results are measured by taking into account net earned premiums, net losses and loss adjustment expenses (“LAE”), commission expenses, other operating expenses and other income (expense). Each segment maintains its own investments on which it earns income and realizes capital gains or losses. The Company’s underwriting performance is evaluated separately from the performance of its investment portfolios.

The Insurance Companies consist of Navigators Insurance Company, including its branch located in the United Kingdom (the “U.K. Branch”), and its wholly-owned subsidiary, Navigators Specialty Insurance Company (“Navigators Specialty”). They are primarily engaged in underwriting marine insurance and related lines of business, professional liability insurance and specialty lines of business including contractors general liability insurance, commercial umbrella and primary and excess casualty businesses. Navigators Specialty underwrites specialty and professional liability insurance on an excess and surplus lines basis. Navigators Specialty is 100% reinsured by Navigators Insurance Company.

The Lloyd’s Operations primarily underwrite marine and related lines of business along with offshore energy, professional liability insurance and construction coverages for onshore energy business at Lloyd’s through Syndicate 1221. The Company’s Lloyd’s Operations includes Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s underwriting agency which manages Syndicate 1221.

Navigators Management Company, Inc. (“NMC”) is a wholly-owned underwriting management company which produces, manages and underwrites insurance and reinsurance, and provides corporate services for the Company. The operating results for the underwriting management company are allocated to both the Insurance Companies and Lloyd’s Operations.

The Insurance Companies’ and the Lloyd’s Operations’ underwriting results are measured based on underwriting profit or loss and the related combined ratio, which are both non-GAAP measures of underwriting profitability. Underwriting profit or loss is calculated from net earned premiums, less the sum of net losses and LAE, commission expenses, other operating expenses and other income (expense). The combined ratio is derived by dividing the sum of net losses and LAE, commission expenses, other operating expenses and other 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.

9

Financial data by segment for the three months ended March 31, 2012 and 2011 was as follows:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	248,338		$	94,811		$	—		$	343,149
Net written premiums		181,250			61,795			—			243,045
Net earned premiums		131,548			51,571			—			183,119
Net losses and loss adjustment expenses		(91,177	)		(26,808	)		—			(117,985	)
Commission expenses		(19,301	)		(10,886	)		737			(29,450	)
Other operating expenses		(25,345	)		(10,962	)		—			(36,307	)
Other income (expense)		1,642			6			(737	)		911
Underwriting profit (loss)	$	(2,633	)	$	2,921		$	—		$	288
Net investment income		8,935			2,283			40			11,258
Net realized gains (losses)		1,875			(187	)		—			1,688
Interest expense		—			—			(2,049	)		(2,049	)
Income (loss) before income taxes	$	8,177		$	5,017		$	(2,009	)	$	11,185
Income tax expense (benefit)		2,258			1,726			(703	)		3,281
Net income (loss)	$	5,919		$	3,291		$	(1,306	)	$	7,904
Identifiable assets	$	2,899,369		$	907,760		$	40,398		$	3,847,527
Losses and loss adjustment expenses ratio		69.3	%		52.0	%					64.4	%
Commission expense ratio		14.7	%		21.1	%					16.1	%
Other operating expense ratio (2)		18.0	%		21.2	%					19.3	%
Combined ratio		102.0	%		94.3	%					99.8	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other operating expenses and Other income.

10

	Three Months Ended March 31, 2011
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	206,776		$	89,507		$	—		$	296,283
Net written premiums		130,740			62,336			—			193,076
Net earned premiums		98,820			53,658			—			152,478
Net losses and loss adjustment expenses		(74,797	)		(41,991	)		—			(116,788	)
Commission expenses		(12,340	)		(14,407	)		547			(26,200	)
Other operating expenses		(26,799	)		(9,776	)		—			(36,575	)
Other income (expense)		1,691			(153	)		(547	)		991
Underwriting profit (loss)	$	(13,425	)	$	(12,669	)	$	0		$	(26,094	)
Net investment income		14,983			2,255			146			17,384
Net realized gains (losses)		(245	)		(1,385	)		—			(1,630	)
Interest expense		—			—			(2,046	)		(2,046	)
Income (loss) before income taxes	$	1,313		$	(11,799	)	$	(1,900	)	$	(12,386	)
Income tax expense (benefit)		228			(4,056	)		(665	)		(4,493	)
Net income (loss)	$	1,085		$	(7,743	)	$	(1,235	)	$	(7,893	)
Identifiable assets	$	2,685,679		$	883,603		$	67,828		$	3,637,110
Losses and loss adjustment expenses ratio		75.7	%		78.3	%					76.6	%
Commission expense ratio		12.5	%		26.8	%					17.2	%
Other operating expense ratio (2)		25.4	%		18.5	%					23.3	%
Combined ratio		113.6	%		123.6	%					117.1	%

(1) - Includes Corporate segment intercompany eliminations.

(2) -Includes Other operating expenses and Other income.

11

The following tables provide additional financial data by segment for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	61,865	$	62,330	$	124,195
Property casualty		155,919		23,741		179,660
Professional liability		30,554		8,740		39,294
Total	$	248,338	$	94,811	$	343,149
Net written premiums:
Marine	$	42,865	$	48,525	$	91,390
Property casualty		114,532		8,888		123,420
Professional liability		23,853		4,382		28,235
Total	$	181,250	$	61,795	$	243,045
Net earned premiums:
Marine	$	35,275	$	34,609	$	69,884
Property casualty		74,368		13,157		87,525
Professional liability		21,905		3,805		25,710
Total	$	131,548	$	51,571	$	183,119

	Three Months Ended March 31, 2011
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	70,348	$	61,155	$	131,503
Property casualty		112,888		19,302		132,190
Professional liability		23,540		9,050		32,590
Total	$	206,776	$	89,507	$	296,283
Net written premiums:
Marine	$	54,218	$	49,671	$	103,889
Property casualty		62,907		8,386		71,293
Professional liability		13,615		4,279		17,894
Total	$	130,740	$	62,336	$	193,076
Net earned premiums:
Marine	$	40,559	$	36,978	$	77,537
Property casualty		42,935		11,894		54,829
Professional liability		15,326		4,786		20,112
Total	$	98,820	$	53,658	$	152,478

The Insurance Companies’ net earned premiums include $21.0 million and $17.4 million of net earned premiums from the U.K. Branch for the three months ended March 31, 2012 and 2011, respectively.

12

Note 4. Reinsurance Ceded

The Company’s ceded earned premiums were $91.7 million and $96.0 million for the three months ended March 31, 2012 and 2011, respectively. The Company’s ceded incurred losses were $70.7 million and $74.7 million for the three months ended March 31, 2012 and 2011, respectively.

The following table lists the Company’s 20 largest reinsurers measured by the amount of reinsurance recoverable for ceded losses and LAE and ceded unearned premium (constituting approximately 73.4% of the total recoverable), together with the reinsurance recoverable and collateral as of March 31, 2012, and the reinsurers’ ratings from the indicated rating agency:

	Reinsurance Recoverables
In thousands	Unearned Premium		Paid/Unpaid Losses		Total		Collateral Held  (1)		AMB		S&P
Munich Reinsurance America Inc.		10,301		82,421		92,722		15		A+		AA-
Everest Reinsurance Company		14,229		77,070		91,299		6,875		A+		A+
Swiss Reinsurance America Corporation		5,248		86,241		91,489		5,984		A+		AA-
Transatlantic Reinsurance Company		14,335		74,038		88,373		7,103		A		A+
National Indemnity Company		22,240		38,064		60,304		12,718		A++		AA+
Partner Reinsurance Europe		6,883		31,065		37,948		20,944		A+		A+
Lloyd’s Syndicate #2003		6,344		32,108		38,452		7,052		A		A+
Berkley Insurance Company		1,658		29,647		31,305		423		A+		A+
Allied World Reinsurance		6,934		21,672		28,606		2,776		A		A
General Reinsurance Corporation		743		25,836		26,579		3,708		A++		AA+
Scor Holding (Switzerland) AG		1,696		24,742		26,438		8,527		A		A
Ace Property and Casualty Insurance Company		1,155		21,533		22,688		—		A+		AA-
Sirius America Insurance Company		114		22,373		22,487		279		A		A-
Tower Insurance Company		8,202		13,006		21,208		3,154		A-		NR
Platinum Underwriters Re		673		20,106		20,779		2,305		A		A-
Validus Reinsurance Ltd.		2,654		19,364		22,018		12,075		A		A-
Munchener Ruckversicherungs-Gesellschaft		520		19,913		20,433		6,716		A+		AA-
AXIS Re Europe		4,687		13,835		18,522		5,246		A		A+
Lloyd’s Syndicate #4000		2,000		14,172		16,172		1,828		A		A+
Scor Global P&C SE		7,455		8,381		15,836		3,799		A		A
Top 20 Total	$	118,071	$	675,587	$	793,658	$	111,527
All Others		54,145		232,827		286,972		87,359
Total	$	172,216	$	908,414	$	1,080,630	$	198,886

(1) Collateral includes letter of credit balances payable and other balances held by the Company’s Insurance Companies and Lloyd’s Operations.

13

Note 5. Stock-Based Compensation

Stock-based compensation granted under the Company’s stock plans is expensed in tranches over the vesting period. Options and non-performance based grants generally vest equally over a three or four year period and the options have a maximum term of ten years. Certain non-performance based grants vest over five years with one-third vesting in each of the third, fourth and fifth years. The Company’s performance based share grants generally consist of two types of awards. The restricted stock units issued in 2011 and after will cliff vest over a three year period, with 50% vesting in full, and 50% dependent on the compound annual growth in book value per share for the three years immediately prior to the vesting date, with actual shares that vest ranging between 150% to 0% of that portion of the original award. Those performance based restricted stock units issued prior to 2011 generally vest over five years with one-third vesting in each of the third, fourth and fifth years, dependent on the rolling three-year average return on equity based on the three years prior to the year in which the vesting occurs, with actual shares that vest ranging between 150% to 0% of the original award.

The amounts charged to expense for stock-based compensation for the three months ended March 31, 2012 and 2011 are presented in the following table:

	Three Months Ended March 31,
In thousands	2012			2011
Restricted stock units	$	1,212		$	948
Directors restricted stock grants (1)		60			60
Employee stock purchase plan		(26	)		55
Stock appreciation rights (2)		—			4
Stock options		—			—
Total stock-based compensation	$	1,246		$	1,067

(1) Relates to non-employee directors serving on the Parent Company’s Board of Directors, all of whom have been elected by the Company’s shareholders, as well as non-employee directors serving on NUAL’s Board of Directors.

(2) All outstanding stock appreciation rights were exercised during 2011. The Company will no longer issue awards from the Stock Appreciation Rights Plan as a result of the 2005 Amended and Restated Stock Incentive Plan.

Note 6. Lloyd’s Syndicate 1221

The Company’s Lloyd’s Operations included in the consolidated financial statements represents its participation in Syndicate 1221. Syndicate 1221’s stamp capacity is £184 million ($294 million) for the 2012 underwriting year compared to £175 million ($280 million) for the 2011 underwriting year. Stamp capacity is a measure of the amount of premiums a Lloyd’s syndicate is authorized to write based on a business plan approved by the Council of Lloyd’s. Syndicate 1221’s stamp capacity is expressed net of commission (as is standard at Lloyd’s). The Syndicate 1221 premiums recorded in the Company’s financial statements are gross of commission. The Company controlled 100% of Syndicate 1221’s stamp capacity for the 2012 and 2011 underwriting years through its wholly-owned Lloyd’s corporate member.

14

The Company provides letters of credit and posts cash to Lloyd’s to support its participation in Syndicate 1221’s stamp capacity. As of March 31, 2012, the Company had provided letters of credit of $150.7 million and did not have any cash collateral posted. If Syndicate 1221 increases its stamp capacity and the Company participates in the additional stamp capacity, or if Lloyd’s changes the capital requirements, the Company may be required to supply additional collateral acceptable to Lloyd’s. If the Company is unwilling or unable to provide additional acceptable collateral, the Company will be required to reduce its participation in the stamp capacity of Syndicate 1221. The letters of credit are provided through a credit facility with a consortium of banks which provides the Company with the ability to have letters of credit issued to support Syndicate 1221’s stamp capacity at Lloyd’s for the 2011 and 2012 underwriting years. If any letters of credit remain outstanding under the facility after December 31, 2012, the Company would be required to post additional collateral to secure the remaining letters of credit. If the credit facility is not renewed prior to December 31, 2012, the Company will need to find internal and/or external sources to provide either letters of credit or other collateral in order to continue to participate in Syndicate 1221. The credit facility is collateralized by all of the common stock of Navigators Insurance Company. Refer to Note 11, Credit Facility, for additional information.

Note 7. Income Taxes

The Company is subject to the tax laws and regulations of the United States (“U.S.”) and foreign countries in which it operates. The Company files a consolidated U.S. federal tax return, which includes all domestic subsidiaries and the U.K. Branch. The income from the foreign operations is designated as either U.S. connected income or non-U.S. connected income. Lloyd’s is required to pay U.S. income tax on U.S. connected income written by Lloyd’s syndicates. Lloyd’s and the Internal Revenue Service (“IRS”) have entered into an agreement whereby the amount of tax due on U.S. connected income is calculated by Lloyd’s and remitted directly to the IRS. These amounts are then charged to the corporate members in proportion to their participation in the relevant syndicates. The Company’s corporate members are subject to this agreement and will receive U.K. tax credits in the United Kingdom (“U.K.”) for any U.S. income tax incurred up to the U.K. income tax charged on the U.S. connected income. The non-U.S. connected insurance income would generally constitute taxable income under the Subpart F income section of the Internal Revenue Code (“Subpart F”) since less than 50% of Syndicate 1221’s premiums are derived within the U.K. and would therefore be subject to U.S. taxation when the Lloyd’s year of account closes. Taxes are accrued at a 35% rate on the Company’s foreign source insurance income and foreign tax credits, where available, are utilized to offset U.S. tax as permitted. The Company’s effective tax rate for Syndicate 1221 taxable income could substantially exceed 35% to the extent the Company is unable to offset U.S. taxes paid under Subpart F tax regulations with U.K. tax credits on future underwriting year distributions. U.S. taxes are not accrued on the earnings of the Company’s foreign agencies as these earnings are not includable as Subpart F income in the current year. These earnings are subject to taxes under U.K. tax regulations at a 26% rate through March 31, 2012. A finance bill was enacted in the U.K. that reduces the U.K. corporate tax rate from 26% to 24% effective April 2012. The effect of such tax rate change was not material.

The Company has not provided for U.S. deferred income taxes on the undistributed earnings of approximately $72.3 million of its non-U.S. subsidiaries since these earnings are intended to be permanently reinvested in the non-U.S. subsidiaries. However, in the future, if such earnings were distributed to the Company, taxes of approximately $1.5 million, assuming all foreign tax credits are realized, would be payable on such undistributed earnings and would be reflected in the tax provision for the year in which these earnings are no longer intended to be permanently reinvested in the foreign subsidiary.

Unrecognized tax benefits are differences between tax positions taken in the tax returns and benefits recognized in the financial statements. The Company has no unrecognized tax benefits as of March 31, 2012 and 2011. The Company did not incur any interest or penalties related to unrecognized tax benefits for the three months ended March 31, 2012 and 2011. The Company is currently not under examination by any major U.S. or foreign tax authority and is generally subject to U.S. Federal, state or local, or foreign tax examinations by tax authorities for 2008 and subsequent years.

15

The Company recorded income tax expense of $3.3 million for the three months ended March 31, 2012 compared to a benefit of $4.5 million for the same period in 2011, resulting in an effective tax rate of 29.3% for the three months ended March 31, 2012 and 36.3% for the comparable period in 2011. The effective tax rate on net investment income was 25.2% for the three months ended March 31, 2012 compared to 28.5% for the same period in 2011.

The Company had state and local deferred tax assets amounting to potential future tax benefits of $0.5 million and $0.2 million as of March 31, 2012 and December 31, 2011, respectively. Included in the deferred tax assets are state and local net operating loss carry-forwards of $0.2 million as of both March 31, 2012 and December 31, 2011. A valuation allowance was established for the full amount of these potential future tax benefits due to the uncertainty associated with their realization. The Company’s state and local tax carry-forwards as of March 31, 2012 expire from 2024 to 2031.

Note 8. Senior Notes due May 1, 2016

On April 17, 2006, the Company completed a public debt offering of $125 million principal amount of 7% senior unsecured notes (the “Senior Notes”) and received net proceeds of $123.5 million. The principal amount of the Senior Notes is payable in a single installment on May 1, 2016. In April 2009, the Company repurchased $10.0 million aggregate principal amount of the Senior Notes from an unaffiliated note holder on the open market for $7.0 million, which generated a $3.0 million pre-tax gain that was reflected in Other income. The Senior Notes liability at March 31, 2012 was $114.3 million. The unamortized discount at March 31, 2012 was $0.7 million. The aggregate principal amount of the Senior Notes that will be repaid on May 1, 2016 as a result of these transactions is $115.0 million.

The fair value of the Senior Notes was $118.3 million and $119.3 million as of March 31, 2012 and December 31, 2011. The fair value was determined using quoted prices for similar instruments in active markets and is classified as Level 2 within the fair value hierarchy as defined by the accounting guidance for fair value measurements.

Interest is payable on the Senior Notes each May 1 and November 1. The effective interest rate related to the Senior Notes, based on the proceeds net of discount and all issuance costs, is approximately 7.17%. Interest expense on the Senior Notes for the three months ended March 31, 2012 and 2011 was $2.0 million.

The Senior Notes, the Company’s only senior unsecured obligation, will rank equally with any future senior unsecured indebtedness. The Company may redeem the Senior Notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price. The terms of the Senior Notes contain various restrictive business and financial covenants typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the common stock of certain subsidiaries. As of March 31, 2012, the Company was in compliance with all such covenants.

Note 9. Commitments and Contingencies

In the ordinary course of conducting business, the Company’s 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 the 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. The Company accounts for such activity through the establishment of unpaid loss and loss adjustment reserves. The Company’s management believes that the 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 Company’s consolidated financial condition, results of operations or cash flows.

The Company’s subsidiaries are also from time to time 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, the Company believes it has valid defenses to these cases. The Company’s management expects that the ultimate liability, if any, with respect to future extra-contractual matters will not be material to its consolidated financial position, results of operations or cash flows. 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 the Company’s consolidated results of operations or cash flows in a particular fiscal quarter or year.

16

In October 2010, Equitas, represented by Resolute Management Services Limited (“Resolute”), commenced a lawsuit in the Supreme Court of the State of New York (the “Court Proceeding”) and separate arbitration proceedings (the “Arbitration” and collectively with the Court Proceeding, the “Resolute Proceedings”) against Navigators Management Company, Inc. (“NMC”) a wholly-owned subsidiary of the Company. The arbitration demand and complaint in the Resolute Proceedings allege that NMC failed to make timely payments to Resolute under certain reinsurance agreements in connection with subrogation recoveries received by NMC with respect to several catastrophe losses that occurred in the late 1980’s and early 1990’s.

On October 25, 2011, an order was issued in the Court Proceeding denying NMC’s motion for summary judgment and granting Resolute’s cross-motion for partial summary judgment (the “Partial Summary Judgment Order”). The Partial Summary Judgment Order found that NMC had breached its obligations under the reinsurance agreements at issue in the Court Proceeding and further found that Resolute was entitled to damages for unpaid interest at the statutory rate of 9%. On December 2, 2011, a Stipulation and Order was entered with the Court in favor of Resolute in the amount of $4.7 million with respect to the Partial Summary Judgment Order. Navigators disagreed with and appealed the Partial Summary Judgment Order. As a result of the entry of the Partial Summary Judgment Order on December 2, 2011, however, Navigators established an interest expense accrual of $4.7 million during the fourth quarter of 2011, pending the resolution of the appeal.

On March 9, 2012, the Arbitration Panel granted Resolute’s motion for summary judgment in the Arbitration and found that NMC breached its obligations under the reinsurance agreement and that Resolute was entitled to damages for unpaid interest at the New York statutory rate of 9%. The Arbitration Panel’s ruling is binding and non-appealable.

Navigators disagrees with the two summary judgment rulings in the Resolute Proceedings, but rather than continue to litigate these related matters and incur additional legal expenses, NMC entered into a settlement agreement with Resolute, effective as of April 19, 2012, and agreed to withdraw its appeal and fully and finally settle this dispute. Navigators has agreed to pay $9.2 million to Resolute as part of the settlement.

As a result of the settlement, Navigators recognized an additional interest expense accrual of $4.5 million during the first quarter of 2012.

17

Note 10. Investments

The following tables set forth the Company’s cash and investments as of March 31, 2012 and December 31, 2011. The table below includes other-than-temporarily impaired (“OTTI”) securities recognized within other comprehensive income (“OCI”).

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	418,876	$	8,032	$	(856	)	$	411,700	$	—
States, municipalities and political subdivisions		398,399		28,185		(156	)		370,370		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		385,239		16,240		(7	)		369,006		—
Residential mortgage obligations		20,254		35		(2,009	)		22,228		(1,037	)
Asset-backed securities		49,077		874		(45	)		48,248		—
Commercial mortgage-backed securities		212,609		13,248		(76	)		199,437		—
Subtotal	$	667,179	$	30,397	$	(2,137	)	$	638,919	$	(1,037	)
Corporate bonds		459,109		17,945		(923	)		442,087		—
Total fixed maturities	$	1,943,563	$	84,559	$	(4,072	)	$	1,863,076	$	(1,037	)
Equity securities — common stocks		102,400		27,263		(342	)		75,479		—
Short-term investments		202,977		—		—			202,977		—
Cash		45,508		—		—			45,508		—
Total	$	2,294,448	$	111,822	$	(4,414	)	$	2,187,040	$	(1,037	)

	As of December 31, 2011
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	336,070	$	8,979	$	(383	)	$	327,474	$	—
States, municipalities and political subdivisions		410,836		28,887		(108	)		382,057		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		395,860		17,321		(3	)		378,542		—
Residential mortgage obligations		23,148		8		(2,848	)		25,988		(1,682	)
Asset-backed securities		48,934		695		(75	)		48,314		—
Commercial mortgage-backed securities		216,034		10,508		(593	)		206,119		—
Subtotal	$	683,976	$	28,532	$	(3,519	)	$	658,963	$	(1,682	)
Corporate bonds		457,187		15,743		(6,772	)		448,216		—
Total fixed maturities	$	1,888,069	$	82,141	$	(10,782	)	$	1,816,710	$	(1,682	)
Equity securities — common stocks		95,849		23,240		(958	)		73,567		—
Short-term investments		122,220		—		—			122,220		—
Cash		127,360		—		—			127,360
Total	$	2,233,498	$	105,381	$	(11,740	)	$	2,139,857	$	(1,682	)

18

The fair value of the 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. The Company does not have the intent to sell nor is it more likely than not that it will have to sell debt securities in unrealized loss positions that are not other-than-temporarily impaired before recovery. The Company may realize investment losses to the extent its liquidity needs require the disposition of fixed maturity securities in unfavorable interest rate, liquidity or credit spread environments. Significant changes in the factors the Company considers when evaluating investment for impairment losses could result in a significant change in impairment losses reported in the consolidated financial statements.

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity as of March 31, 2012 are shown in the following table:

	As of March 31, 2012
In thousands	Fair Value		Amortized Cost
Due in one year or less	$	46,615	$	46,244
Due after one year through five years		627,418		611,661
Due after five years through ten years		385,720		363,151
Due after ten years		216,631		203,101
Mortgage- and asset-backed securities		667,179		638,919
Total	$	1,943,563	$	1,863,076

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. Due to the periodic repayment of principal, the mortgage-backed and asset-backed securities are estimated to have an effective maturity of approximately 3.8 years.

The following table shows the amount and percentage of the Company’s fixed maturities and short-term investments at March 31, 2012 by S&P credit rating or, if an S&P rating is not available, the equivalent Moody’s Investor Services (“Moody’s”) rating. The table includes fixed maturities and short-term investments at fair value, and the total rating is the weighted average quality rating.

In thousands	Rating	Fair Value		Percent of Total
Rating description:
Extremely strong	AAA	$	316,690		16	%
Very strong	AA		1,076,193		56	%
Strong	A		411,864		21	%
Adequate	BBB		123,112		6	%
Speculative	BB & Below		11,833		1	%
Not rated	NR		3,871		0	%
Total	AA	$	1,943,563		100	%

19

The following table summarizes all securities in a gross unrealized loss position as of March 31, 2012 and December 31, 2011, showing the aggregate fair value and gross unrealized loss by the length of time those securities had continuously been in a gross unrealized loss position as well as the relevant number of securities.

	As of March 31, 2012						As of December 31, 2011
In thousands, except # of securities	Number of Securities		Fair Value		Gross Unrealized Loss		Number of Securities		Fair Value		Gross Unrealized Loss
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds
0-6 months		28	$	173,094	$	755		7	$	58,587	$	98
7-12 months		—		—		—		—		—		—
> 12 months		2		7,060		101		2		6,883		285
Subtotal		30	$	180,154	$	856		9	$	65,470	$	383
States, municipalities and political subdivisions
0-6 months		6	$	6,731	$	99		7	$	5,894	$	72
7-12 months		2		1,906		34		1		216		1
> 12 months		3		1,717		23		5		2,420		35
Subtotal		11	$	10,354	$	156		13	$	8,530	$	108
Agency mortgage-backed securities
0-6 months		4	$	7,368	$	7		3	$	5,087	$	3
7-12 months		—		—		—		—		—		—
> 12 months		—		—		—		—		—		—
Subtotal		4	$	7,368	$	7		3	$	5,087	$	3
Residential mortgage obligations
0-6 months		3	$	787	$	100		6	$	6,672	$	184
7-12 months		5		2,534		101		7		5,250		313
> 12 months		47		11,780		1,808		47		10,749		2,351
Subtotal		55	$	15,101	$	2,009		60	$	22,671	$	2,848
Asset-backed securities
0-6 months		—	$	—	$	—		2	$	4,933	$	12
7-12 months		4		5,291		45		5		6,645		63
> 12 months		1		2		—		1		2		—
Subtotal		5	$	5,293	$	45		8	$	11,580	$	75
Commercial mortgage-backed securities
0-6 months		7	$	9,311	$	45		6	$	5,465	$	29
7-12 months		2		185		6		3		6,840		550
> 12 months		2		1,040		25		3		1,503		14
Subtotal		11	$	10,536	$	76		12	$	13,808	$	593
Corporate bonds
0-6 months		9	$	37,306	$	138		52	$	135,516	$	4,539
7-12 months		20		39,538		575		18		27,561		1,457
> 12 months		6		7,900		210		8		14,898		776
Subtotal		35	$	84,744	$	923		78	$	177,975	$	6,772
Total fixed maturities		151	$	313,550	$	4,072		183	$	305,121	$	10,782
Equity securities-common stocks
0-6 months		1	$	2,032	$	15		4	$	3,320	$	587
7-12 months		2		3,262		327		1		1,629		371
> 12 months		—		—		—		—		—		—
Total equity securities		3	$	5,294	$	342		5	$	4,949	$	958

20

As of March 31, 2012 and December 31, 2011, the largest single unrealized loss by a non-government backed issuer in the investment portfolio was $0.3 million and $1.4 million, respectively.

The Company analyzes the unrealized losses quarterly to determine if any are other-than-temporary. The above unrealized losses have been determined to be temporary based on our analysis.

For debt securities, when assessing whether the amortized cost basis of the security will be recovered, the Company compares the present value of cash flows expected to be collected in relation to the current book value. Any shortfalls of the present value of the cash flows expected to be collected to the amortized cost basis is considered the credit loss portion of OTTI losses and is recognized in earnings. All non-credit losses are recognized as changes in OTTI losses within OCI.

To determine whether the unrealized loss on structured securities is other-than-temporary, the Company analyzes the projections provided by its investment managers with respect to an expected principal loss under a range of scenarios and utilizes the most likely outcomes. The analysis relies on actual collateral performance measures such as default rate, prepayment rate and loss severity. These assumptions are applied throughout the remaining term of the deal, incorporating the transaction structure and priority of payments, to generate loss adjusted cash flows. Results of the analysis will indicate whether the security ultimately incurs a loss or whether there is a material impact on yield due to either a projected loss or a change in cash flow timing. A break even default rate is also calculated. A comparison of the break even default rate to the actual default rate provides an indication of the level of cushion or coverage to the first dollar principal loss. The analysis applies the stated assumptions throughout the remaining term of the transaction to forecast cash flows, which are then applied through the transaction structure to determine whether there is a loss to the security. For securities in which a tranche loss is present, and the net present value of loss adjusted cash flows is less than book value, impairment is recognized. The output data also includes a number of additional metrics such as average life remaining, original and current credit support, over 60 day delinquency and security rating.

The significant inputs used to measure the amount of credit loss recognized in earnings were actual delinquency rates, default probability assumptions, severity assumptions and prepayment assumptions. Projected losses are a function of both loss severity and probability of default. Default probability and severity assumptions differ based on property type, vintage and the stress of the collateral. The Company does not intend to sell any of these securities and it is more likely than not that it will not be required to sell these securities before the recovery of the amortized cost basis.

For equity securities, in general, the Company focuses its attention on those securities with a fair value less than 80% of their cost for six or more consecutive months. If warranted as the result of conditions relating to a particular security, the Company will focus on a significant decline in fair value regardless of the time period involved. Factors considered in evaluating potential impairment include, but are not limited to, the current fair value as compared to cost of the security, the length of time the investment has been below cost and by how much the investment is below cost. If an equity security is deemed to be other-than-temporarily impaired, the cost is written down to fair value with the loss recognized in earnings.

For equity securities, the Company also considers its 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. For fixed maturity securities, the Company considers its intent to sell a security and whether it is more likely than not that the Company will be required to sell a security before the anticipated recovery as part of the process of evaluating whether a security’s unrealized loss represents an other-than-temporary decline. The Company’s ability to hold such securities is supported by sufficient cash flow from its operations and from maturities within its investment portfolio in order to meet its claims payment and other disbursement obligations arising from its 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.

21

The following table summarizes the gross unrealized investment losses as of March 31, 2012 by length of time where the fair value is less than 80% of amortized cost.

	Period for Which Fair Value is Less than 80% of Amortized Cost
In thousands	Less than 3 months		Longer than 3 months, less than 6 months		6 months or  longer, less than 12 months		12 months or longer			Total
Fixed maturities	$	—	$	—	$	—	$	(547	)	$	(547	)
Equity securities		—		—		—		—			—
Total	$	—	$	—	$	—	$	(547	)	$	(547	)

The table below summarizes the Company’s activity related to OTTI losses for the periods indicated:

	Three Months Ended March 31,
	2012				2011
In thousands, except # of securities	Number of Securities		Amount		Number of Securities		Amount
Total other-than-temporary impairment losses:
Corporate and other bonds		—	$	—		—	$	—
Commercial mortgage-backed securities		—		—		—		—
Residential mortgage-backed securities		1		55		1		33
Asset-backed securities		—		—		—		—
Equities		2		143		1		230
Total		3	$	198		2	$	263
Less: Portion of loss in accumulated other comprehensive income (loss):
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				44				22
Asset-backed securities				—				—
Equities				—				—
Total			$	44			$	22
Impairment losses recognized in earnings
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				11				11
Asset-backed securities				—				—
Equities				143				230
Total			$	154			$	241

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The following table summarizes the cumulative amounts related to the Company’s credit loss portion of the OTTI losses on debt securities for the three months ended March 31, 2012 and 2011. The Company does not intend to sell and it is more likely than not that it will not be required to sell the securities prior to recovery of the amortized cost basis and for which the non-credit loss portion is included in other comprehensive income:

	Three Months Ended March 31,
In thousands	2012		2011
Beginning balance	$	3,321	$	2,228
Additions for credit loss impairments recognized in the current period on securities not previously impaired		—		—
Additions for credit loss impairments recognized in the current period on securities previously impaired		11		11
Reductions for credit loss impairments previously recognized on securities sold during the period		—		—
Ending balance	$	3,332	$	2,239

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity, with a gross unrealized loss as of March 31, 2012 is presented in the following table:

	As of March 31, 2012
	Gross Unrealized Losses					Fair Value
In thousands	Amount		Percent of Total			Amount		Percent of Total
Due in one year or less	$	102		3	%	$	12,586		4	%
Due after one year through five years		938		23	%		183,891		58	%
Due after five years through ten years		694		17	%		52,004		17	%
Due after ten years		201		5	%		26,771		9	%
Mortgage- and asset-backed securities		2,137		52	%		38,298		12	%
Total	$	4,072		100	%	$	313,550		100	%

The Company’s net investment income was derived from the following sources:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities	$	15,411		$	17,192
Equity securities		947			783
Short-term investments		312			267
Total investment income		16,670			18,242
Investment expenses		(5,412	)		(858	)
Net investment income	$	11,258		$	17,384

Investment expenses for the three months ended March 31, 2012 included $4.5 million of estimated interest expense related to a summary judgment order entered against the Company in Arbitration in its dispute with Resolute over whether interest was due on previously paid balances that were allegedly overdue under certain reinsurance agreements. Refer to Note 9, Commitments and Contingencies.

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The change in net unrealized gains/(losses), inclusive of the change in the non credit portion of other-than-temporary impairment losses, consisted of:

	Three Months Ended March 31,
In thousands	2012		2011
Fixed maturities	$	9,128	$	(3,640	)
Equity securities		4,639		3,861
Gross unrealized gains (losses)		13,767		221
Deferred income tax		4,818		183
Change in net unrealized gains (losses), net	$	8,949	$	38

Realized gains/(losses), excluding net other-than-temporary impairment losses recognized in earnings, for the periods indicated were as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities:
Gains	$	3,142		$	2,867
Losses		(1,300	)		(4,256	)
Fixed maturities, net	$	1,842		$	(1,389	)
Equity securities:
Gains	$	—		$	—
Losses		—			—
Equity securities, net	$	—		$	—
Net realized gains (losses)	$	1,842		$	(1,389	)

The following tables present, for each of the fair value hierarchy levels as defined by the accounting guidance for fair value measurements, the Company’s fixed maturities and equity securities by asset class that are measured at fair value on a recurring basis as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	181,701	$	237,175	$	—	$	418,876
States, municipalities and political subdivisions		—		398,399		—		398,399
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		385,239		—		385,239
Residential mortgage obligations		—		20,254		—		20,254
Asset-backed securities		—		49,077		—		49,077
Commercial mortgage-backed securities		—		212,609		—		212,609
Subtotal	$	—	$	667,179	$	—	$	667,179
Corporate bonds		—		459,109		—		459,109
Total fixed maturities	$	181,701	$	1,761,862	$	—	$	1,943,563
Equity securities-common stocks		102,400		—		—		102,400
Total	$	284,101	$	1,761,862	$	—	$	2,045,963

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	As of December 31, 2011
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	136,625	$	199,445	$	—	$	336,070
States, municipalities and political subdivisions		—		410,836		—		410,836
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		395,860		—		395,860
Residential mortgage obligations		—		23,148		—		23,148
Asset-backed securities		—		48,934		—		48,934
Commercial mortgage-backed securities		—		216,034		—		216,034
Subtotal	$	—	$	683,976	$	—	$	683,976
Corporate bonds		—		457,187		—		457,187
Total fixed maturities	$	136,625	$	1,751,444	$	—	$	1,888,069
Equity securities-common stocks		95,849		—		—		95,849
Total	$	232,474	$	1,751,444	$	—	$	1,983,918

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

Level 1 — Quoted prices for identical instruments in active markets. Examples are listed equity and fixed income securities traded on an exchange. Treasury securities would generally be considered level 1.

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 which are similar to other asset-backed or mortgage-backed securities observed in the market.

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 Company did not have any transfers between Level 1 and 2 for March 31, 2012 and December 31, 2011.

There were no significant judgments made in classifying instruments in the fair value hierarchy.

As of March 31, 2012, the Company did not have any Level 3 assets. Any pricing where the input is based solely on a broker price is deemed to be a Level 3 price. The following tables present a reconciliation of the beginning and ending balances for all investments measured at fair value using Level 3 inputs during the three months ended March 31, 2011:

	For The Three Months Ended March 31, 2011
In thousands	Beginning Balance		Realized Gains (Losses)		Unrealized Gains (Losses)			Purchases		Sales			Settlements		Transfers into Level 3		Transfers out of Level 3			Ending Balance
Assets:
Commercial Mortgage Obligations	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—
Total assets	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—

As of March 31, 2012 and December 31, 2011, fixed maturities with amortized values of $9.0 million and $10.2 million, respectively, were on deposit with various state insurance departments. In addition, at March 31, 2012, investments of $1.2 million were on deposit at a U.K. bank to comply with the regulatory requirements of the Financial Services Authority for Navigators Insurance Company’s U.K. Branch. In addition, at March 31, 2012 and December 31, 2011, $0.3 million of investments were pledged as security under a reinsurance treaty.

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As of March 31, 2012 and December 31, 2011, the Company did not have a concentration of greater than 5% of invested assets in a single non-U.S. government-backed issuer.

Note 11. Credit Facility

On April 1, 2011, the Company entered into a $165 million credit facility agreement with ING Bank N.V., London Branch, individually and as Administrative Agent, and a syndicate of lenders. The credit facility, which is denominated in U.S. dollars, is utilized to fund the Company’s participation in Syndicate 1221 through letters of credit for the 2012 and 2011 underwriting years, as well as open prior years. The letters of credit issued under the facility are denominated in British pounds and their aggregate face amount will fluctuate based on exchange rates. If any letters of credit remain outstanding under the facility after December 31, 2012, the Company would be required to post additional collateral to secure the remaining letters of credit. As of March 31, 2012, letters of credit with an aggregate face amount of $150.7 million were outstanding under the credit facility.

This credit facility contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. The credit facility also provides for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by the Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, or a change in control of the Company. The letter of credit facility is secured by a pledge of the stock of certain insurance subsidiaries of the Company. To the extent the aggregate face amount issued under the credit facility exceeds the commitment amount, the Company is required to post collateral with the lead bank of the consortium. The Company was in compliance with all covenants under the credit facility as of March 31, 2012.

The applicable margin and applicable fee rate payable under the credit facility are based on a tiered schedule that is based on the Company’s then-current ratings issued by S&P and Moody’s with respect to the Company’s Senior Notes without third-party credit enhancement, and the amount of the Company’s own collateral utilized to fund its participation in Syndicate 1221.

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

NOTE ON FORWARD-LOOKING STATEMENTS

Some of the statements in this Quarterly Report on Form 10-Q for The Navigators Group, Inc. and its subsidiaries (“the Company”, “we”, “us”, and “our”) 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” 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. We cannot assure that anticipated results will be achieved, since actual results may differ materially because of both known and unknown risks and uncertainties which we face. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Factors that could cause actual results to differ materially from our forward-looking statements include, but are not limited to, the factors discussed in the “Risk Factors” section of our 2011 Annual Report on Form 10-K as well as:

• continued volatility in the financial markets and the current recession;

• risks arising from the concentration of our business in marine and energy, general liability and professional liability insurance, including the risk that market conditions for these lines could change adversely or that we could experience large losses in these lines;

• cyclicality in the property and casualty insurance business generally, and the marine insurance business specifically;

• risks that we face in entering new markets and diversifying the products and services that we offer, including risks arising from the development of our new specialty lines or our ability to manage effectively the rapid growth in our lines of business;

• changing legal, social and economic trends and inherent uncertainties in the loss estimation process, which could adversely impact the adequacy of loss reserves and the allowance for reinsurance recoverables;

• risks inherent in the preparation of our financial statements, which requires us to make many estimates and judgments;

• our ability to continue to obtain reinsurance covering our exposures at appropriate prices and/or in sufficient amounts;

• the counterparty credit risk of our reinsurers, including risks associated with the collection of reinsurance recoverable amounts from our reinsurers, who may not pay losses in a timely fashion, or at all;

• the effects of competition from other insurers;

• unexpected turnover of our professional staff and our ability to attract and retain qualified employees;

• increases in interest rates during periods in which we must sell fixed-income securities to satisfy liquidity needs may result in realized investment losses;

• our investment portfolio is exposed to market-wide risks and fluctuations, as well as to risks inherent in particular types of securities;

• exposure to significant capital market risks related to changes in interest rates, credit spreads, equity prices and foreign exchange rates which may adversely affect our results of operations, financial condition or cash flows;

• capital may not be available in the future, or may not be available on favorable terms;

• our ability to maintain or improve our insurance company ratings, as downgrades could significantly adversely affect us, including reducing our competitive position in the industry, or causing clients to choose an insurer with a certain rating level to use higher-rated insurers;

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• risks associated with continued or increased premium levies by Lloyd’s of London (“Lloyd’s) for the Lloyd’s Central Fund and cash calls for trust fund deposits, or a significant downgrade of Lloyd’s rating by A.M. Best Company (“A.M. Best”);

• changes in the laws, rules and regulations that apply to our insurance companies;

• the effect of the E.U. Directive on Solvency II on how we manage our business, capital requirements and costs associated with conducting business;

• the inability of our subsidiaries to pay dividends to us in sufficient amounts, which would harm our ability to meet our obligations;

• weather-related events and other catastrophes (including man-made catastrophes) impacting our insureds and/or reinsurers;

• volatility in the market price of our common stock;

• exposure to recent uncertainties with regard to European sovereign debt holdings; and

• other risks that we identify in current and future filings with the Securities and Exchange Commission (“SEC”).

In light of these risks, uncertainties and assumptions, any forward-looking events discussed in this Form 10-Q may not occur. You are cautioned not to place undue reliance on any forward-looking statements, which speak only as of their respective dates.

OVERVIEW

The discussion and analysis of our financial condition and results of operations contained herein should be read in conjunction with our consolidated financial statements and accompanying notes which appear elsewhere in this Form 10-Q. It contains forward-looking statements that involve risks and uncertainties. Please refer to “Note on Forward-Looking Statements” for more information. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those discussed below and elsewhere in this Form 10-Q.

We are an international insurance company focusing on specialty products within the overall property and casualty insurance market. Our largest product line and most long-standing area of specialization is ocean marine insurance. We have also developed other specialty insurance lines, such as commercial primary and excess liability as well as specialty niches in professional liability, and have recently expanded our specialty reinsurance business.

We conduct operations through our Insurance Companies and our Lloyd’s Operations segments. The Insurance Companies segment consists of Navigators Insurance Company, which includes a United Kingdom Branch (the “U.K. Branch”), and Navigators Specialty Insurance Company, which underwrites specialty and professional liability insurance on an excess and surplus lines basis. All of the insurance business written by Navigators Specialty Insurance Company is fully reinsured by Navigators Insurance Company pursuant to a 100% quota share reinsurance agreement. The insurance and reinsurance business written by our Insurance Companies is underwritten through our wholly-owned underwriting management companies, Navigators Management Company, Inc. (“NMC”) and Navigators Management (UK) Ltd. (“NMUK”).

Our Lloyd’s Operations segment includes Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s of London (“Lloyd’s”) underwriting agency which manages Lloyd’s Syndicate 1221 (“Syndicate 1221”). Our Lloyd’s Operations primarily underwrite marine and related lines of business along with offshore energy, professional liability insurance and construction coverages for onshore energy business at Lloyd’s through Syndicate 1221. We controlled 100% of Syndicate 1221’s stamp capacity for the 2012 and 2011 underwriting years through our wholly-owned subsidiary, Navigators Corporate Underwriters Ltd. which is referred to as a corporate name in the Lloyd’s market. We have also established underwriting agencies in Antwerp, Belgium, Stockholm, Sweden, and Copenhagen, Denmark, which underwrite risks pursuant to binding authorities with NUAL into Syndicate 1221. We also maintain an underwriting presence in Brazil and China through contractual arrangements with local affiliates of Lloyd’s.

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Catastrophe Risk Management

We have exposure to losses caused by hurricanes and other natural man-made catastrophic events. The frequency and severity of catastrophic events is unpredictable.

Our Insurance Companies and Lloyd’s Operations have exposure to losses caused by natural and man-made catastrophic events. The frequency and severity of catastrophes are unpredictable. The extent of losses from a catastrophe is a function of both the total amount of insured exposure in an area affected by the event and the severity of the event. We continually assess our concentration of underwriting exposures in catastrophe exposed areas globally and manage this exposure through individual risk selection and through the purchase of reinsurance. We also use modeling and concentration management tools that allow us to better monitor and control our accumulations of potential losses from catastrophe events. Despite these efforts, there remains uncertainty about the characteristics, timing and extent of insured losses given the unpredictable nature of catastrophes. The occurrence of one or more catastrophic events could have a material adverse effect on our results of operations, financial condition and/or liquidity.

We have significant natural catastrophe exposures throughout the world. We estimate that our largest exposure to loss from a single natural catastrophe event comes from an earthquake on the west coast of the United States. As of March 31, 2012 we estimate that our probable maximum pre-tax gross and net loss exposure from such an earthquake event would be approximately $188.4 million and $29.1 million, respectively, including the cost of reinsurance reinstatement premiums.

Like all catastrophe exposure estimates, the foregoing estimate of our probable maximum loss is inherently uncertain. This estimate is highly dependent upon numerous assumptions and subjective underwriting judgments. Examples of significant assumptions and judgments related to such an estimate include the intensity, depth and location of the earthquake, the various types of the insured risks exposed to the event at the time the event occurs and the estimated costs or damages incurred for each insured risk. The composition of our portfolio also makes such estimates challenging due to the non-static nature of the exposures covered under our policies in lines of business such as cargo and hull. There can be no assurances that the gross and net loss amounts that we could incur in such an event or in any natural catastrophe event would not be materially higher than the estimates discussed above given the significant uncertainties with respect to such an estimate. Moreover, our portfolio of insured risks changes dynamically over time and there can be no assurance that our probable maximum loss will not change materially over time.

The occurrence of large loss events could reduce the reinsurance coverage that is available to us and could weaken the financial condition of our reinsurers, which could have a material adverse effect on our results of operations. Although the reinsurance agreements make the reinsurers liable to us to the extent the risk is transferred or ceded to the reinsurer, ceded reinsurance arrangements do not eliminate our obligation to pay claims to our policyholders as we are required to pay the losses if a reinsurer fails to meet its obligations under the reinsurance agreement. Accordingly, we bear credit risk with respect to our reinsurers. Specifically, our reinsurers may not pay claims made by us on a timely basis, or they may not pay some or all of these claims. Either of these events would increase our costs and could have a material adverse effect on our business.

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CRITICAL ACCOUNTING POLICIES

The Company’s Annual Report on Form 10-K for the year ended December 31, 2011 discloses our critical accounting policies (refer to Item 7 — Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies). Certain of these policies are critical to the portrayal of our financial condition and results since they require management to establish estimates based on complex and subjective judgments, including those related to our estimates for losses and loss adjustment expenses (“LAE”) (including losses that have occurred but were not reported to us by the financial reporting date), reinsurance recoverables, written and unearned premium, the recoverability of deferred tax assets, the impairment of investment securities and accounting for Lloyd’s results. For additional information regarding our critical accounting policies, refer to our Annual Report on Form 10-K for the year ended December 31, 2011.

RECENT ACCOUNTING PRONOUNCEMENTS

Refer to Note 2, Recent Accounting Pronouncements, in the Notes to Interim Consolidated Financial Statements included herein for a discussion about accounting standards recently adopted by the Company, as well as recent accounting developments relating to standards not yet adopted by the Company.

RESULTS OF OPERATIONS

The following is a discussion and analysis of our consolidated and segment results of operations for the three months ended March 31, 2012 and 2011. In presenting our financial results, we discuss our performance with reference to operating earnings, book value per share, underwriting profit or loss, and the combined ratio, all of which are non-GAAP financial measures of performance and/or underwriting profitability. Operating earnings is calculated as net income less after-tax net realized gains (losses) and net other-than-temporary impairment losses (“OTTI”) recognized in earnings. Book value per share is calculated by dividing shareholders’ equity by the number of outstanding shares at any period end. Underwriting profit or loss is calculated from net earned premiums, less the sum of net losses and LAE, commission expenses, other operating expenses and other income (expense). The combined ratio is derived by dividing the sum of net losses and LAE, commission expenses, other operating expenses and other 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. We consider such measures, which may be defined differently by other companies, to be important in the understanding of our overall results of operations by highlighting the underlying profitability of our insurance business.

Summary of Consolidated Results

The following table presents a summary of our consolidated financial results for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,					Percentage Change
In thousands, except per share amounts	2012		2011			YTD
Gross written premiums	$	343,149	$	296,283			16	%
Net written premiums		243,045		193,076			26	%
Total revenues		196,976		169,223			16	%
Total expenses		185,791		181,609			2	%
Pre-tax income (loss)	$	11,185	$	(12,386	)		NM
Provision (benefit) for income taxes		3,281		(4,493	)		NM
Net income (loss)	$	7,904	$	(7,893	)		NM
Net income (loss) per common share:
Basic	$	0.57	$	(0.50	)
Diluted	$	0.56	$	(0.50	)

NM – Percentage change not meaningful

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Net income for the three months ended March 31, 2012 was $7.9 million or $0.56 per diluted share compared to a net loss of $7.9 million or $0.50 per share for the three months ended March 31, 2011. Operating earnings for the three months ended March 31, 2012 were $6.8 million or $0.48 per diluted share compared to a deficit of $6.7 million or $0.43 per share for the comparable period in 2011. In comparison to net income, operating earnings excludes after-tax net realized gains of $1.2 million and after-tax other-than-temporary impairment losses of $0.1 million for the three months ended March 31, 2012. For the three months ended March 31, 2011 operating earnings excluded $1.0 million of net realized losses and after-tax other-than-temporary impairment losses of $0.2 million. The increase in our operating earnings was largely attributable to stronger underwriting results, partially offset by a decrease in net investment income driven by $4.5 million of investment expenses related to the settlement of our pending dispute with Equitas over foregone interest. The current quarter’s results reflect a $6.5 million loss, net of reinsurance and after reinsurance reinstatement premiums, related to the grounding of the cruise ship Costa Concordia.

Our book value per share as of March 31, 2012 was $58.44, increasing from $57.57 as of December 31, 2011. The increase in book value per share primarily resulted from improvements in the value of our consolidated investment portfolio and our results of operations. Our consolidated stockholders’ equity increased 1.8% to $818.2 million as of March 31, 2012 compared to $803.4 million as of December 31, 2011.

Cash flow from operations was $16.4 million for the three months ended March 31, 2012 compared to $13.3 million for the comparable period in 2011. The increase in cash flow from operations was due to improved collections on premiums receivables and reinsurance recoverables, partially offset by an increase in paid losses.

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The following table presents our consolidated underwriting results and provides a reconciliation of our underwriting profit or loss to GAAP net income or net loss for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,						Percentage Change
In thousands	2012			2011			YTD
Gross written premiums	$	343,149		$	296,283			16	%
Net written premiums		243,045			193,076			26	%
Net earned premiums		183,119			152,478			20	%
Net losses and loss adjustment expenses		(117,985	)		(116,788	)		1	%
Commission expenses		(29,450	)		(26,200	)		12	%
Other operating expenses		(36,307	)		(36,575	)		-1	%
Other income (expense)		911			991			-8	%
Underwriting profit (loss)	$	288		$	(26,094	)		101	%
Net investment income		11,258			17,384			-35	%
Net other-than-temporary impairment losses recognized in earnings		(154	)		(241	)		-36	%
Net realized gains (losses)		1,842			(1,389	)		NM
Interest expense		(2,049	)		(2,046	)		0	%
Income (loss) before income taxes	$	11,185		$	(12,386	)		NM
Income tax expense (benefit)		3,281			(4,493	)		NM
Net income (loss)	$	7,904		$	(7,893	)		NM
Losses and loss adjustment expenses ratio		64.4	%		76.6	%
Commission expense ratio		16.1	%		17.2	%
Other operating expense ratio (1)		19.3	%		23.3	%
Combined ratio		99.8	%		117.1	%

(1) - Includes Other operating expenses & Other income (expense)

NM - Percentage change not meaningful

The combined ratio for the three months ended March 31, 2012 was 99.8% compared to 117.1% for the same period in 2011. Our pre-tax underwriting results increased $26.4 million to a $0.3 million underwriting profit for the three months ended March 31, 2012 compared to an underwriting loss of $26.1 million for the same period in 2011.

Our underwriting results for the current quarter reflect a loss related to the grounding of the cruise ship, Costa Concordia. This event generated a gross loss of $38.9 million and a net loss of $7.5 million that was fully absorbed through our IBNR reserves. As a result of this event, we incurred $10.8 million in reinsurance reinstatement premiums, $4.3 million of which were absorbed by our reinsurance reinstatement premium accrual. This loss was partially offset by net prior period reserve redundancies of $6.9 million primarily related to our Property Casualty business.

Our underwriting results for the same period in 2011 included net adverse activity of $25.6 million consisting of a net adverse impact of $11.3 million of large losses from our energy business, $7.5 million in accrued reinstatement premiums reflecting our shift to excess of loss reinsurance protection in our Marine business, $4.2 million of prior year development in our Lloyd’s Professional Liability business, and $2.6 million in sliding scale commission adjustments related to large loss activity that reduced our ceding commission benefit on a large quota share treaty.

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Revenues

Gross Written Premiums

The following tables set forth our gross written premiums, net written premiums and net earned premiums by segment and line of business for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012									2011
In thousands	Gross Written Premiums		%			Net Written Premiums		Net Earned Premiums		Gross Written Premiums		%			Net Written Premiums		Net Earned Premiums
Insurance Companies:
Marine	$	61,865		18	%	$	42,865	$	35,275	$	70,348		24	%	$	54,218	$	40,559
Property Casualty		155,919		45	%		114,532		74,368		112,888		38	%		62,907		42,935
Professional Liability		30,554		9	%		23,853		21,905		23,540		8	%		13,615		15,326
Insurance Companies Total		248,338		72	%		181,250		131,548		206,776		70	%		130,740		98,820
Lloyd’s Operations:
Marine		62,330		18	%		48,525		34,609		61,155		20	%		49,671		36,978
Property Casualty		23,741		7	%		8,888		13,157		19,302		7	%		8,386		11,894
Professional Liability		8,740		3	%		4,382		3,805		9,050		3	%		4,279		4,786
Lloyd’s Operations Total		94,811		28	%		61,795		51,571		89,507		30	%		62,336		53,658
Total	$	343,149		100	%	$	243,045	$	183,119	$	296,283		100	%	$	193,076	$	152,478

Gross written premiums increased $46.9 million, or 15.8%, to $343.1 million for the three months ended March 31, 2012 compared to $296.3 million for the same period in 2011. The increase in gross written premiums is primarily attributed to growth within our Property Casualty business, specifically our Nav Re division, which writes Accident & Health (“A&H”), Agriculture, Latin American and Professional Liability reinsurance lines of business. Nav Re gross written premiums increased $35.3 million, or 92.6%, to $73.4 million for the three months ended March 31, 2011 across all business lines as the division continues to achieve successful growth since its establishment in late 2010. The increase within Property Casualty is also attributable to growth of $11.4 million within our Excess Casualty division resulting from strong production attributable to investments in additional underwriting staff and dislocation among certain competitors.

Average renewal premium rates for our Insurance Companies segment increased from the same period in 2011 across all segments. Our Marine business has realized a 5.6% and 2.0% increase in rates on the marine liability and inland marine divisions, respectively. Our Property Casualty business has realized a 6.0% increase in rates on the NavTech division and a slight 1.0% increase on the Excess and Primary Casualty divisions. Our Professional Liability business has experienced an overall increase in renewal rates of 2.3%, consisting of 3.1% and 1.0% for the E&O and the Management Liability divisions, respectively.

Average renewal premium rates for our Lloyd’s segment include increases for Lloyd’s Marine and Lloyd’s NavTech of approximately 3.5% and 6.0%, respectively. Our Lloyd’s Professional Liability business experienced an average decrease of 2.3%.

The average premium rate increases or decreases as noted above for the Marine, Property Casualty and Professional Liability businesses are calculated primarily by comparing premium amounts on policies that have renewed. The premiums are judgmentally adjusted for exposure factors when deemed significant and sometimes represent an aggregation of several lines of business. The rate change calculations provide an indicated pricing trend and are not meant to be a precise analysis of the numerous factors that affect premium rates or the adequacy of such rates to cover all underwriting costs and generate an underwriting profit. The calculation can also be affected quarter by quarter depending on the particular policies and the number of policies that renew during that period. Due to market conditions, these rate changes may or may not apply to new business that generally would be more competitively priced compared to renewal business. The calculation does not reflect the rate on business that we are unwilling or unable to renew due to loss experience or competition.

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Ceded Written Premiums

In the ordinary course of business, we reinsure certain insurance risks with unaffiliated insurance companies for the purpose of limiting our maximum loss exposure, protecting against catastrophic losses, and maintaining desired ratios of net premiums written to statutory surplus. The relationship of ceded to gross written premium varies based upon the types of business written and whether the business is written by the Insurance Companies or the Lloyd’s Operations.

Our reinsurance program includes contracts for proportional reinsurance, per risk and whole account excess-of-loss reinsurance for both property and casualty risks and property catastrophe excess-of-loss reinsurance. In recent years we have increased our utilization of excess-of-loss reinsurance for marine, property and casualty risks. Our excess-of-loss reinsurance contracts generally provide for a specific amount of coverage in excess of an attachment point and sometimes provides for reinstatement of the coverage to the extent the limit has been exhausted for payment of additional premium (referred to as reinstatement premiums). The number of reinstatements available varies by contract.

We record an estimate of the expected reinstatement premiums for losses ceded to excess-of-loss agreements where this feature applies.

We incurred approximately $12 million in reinstatement premiums for the three months ended March 31, 2012 and 2011. The grounding of the Costa Concordia triggered $10.8 million in reinsurance reinstatement premiums. The net amount recorded for the same period a year ago primarily consists of $7.5 million in accrued reinstatement premiums reflective of our shift to excess-of-loss protection in our Marine business, as described above, and $3.9 million from a large energy loss in the North Sea.

The following table sets forth our ceded written premiums by segment and major line of business for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
	2012					2011
In thousands	Ceded Written Premiums		% of Gross Written Premiums			Ceded Written Premiums		% of Gross Written Premiums
Insurance Companies:
Marine	$	19,000		31	%	$	16,130		23	%
Property Casualty		41,387		27	%		49,981		44	%
Professional Liability		6,701		22	%		9,925		42	%
Total Insurance Companies		67,088		27	%		76,036		37	%
Lloyd’s Operations:
Marine		13,805		22	%		11,484		19	%
Property Casualty		14,853		63	%		10,916		57	%
Professional Liability		4,358		50	%		4,771		53	%
Total Lloyd’s		33,016		35	%		27,171		30	%
Total	$	100,104		29	%	$	103,207		35	%

Excluding the impact of reinsurance reinstatement premiums, the decrease in percentage of total ceded written premiums to total gross written premiums for the three months ended March 31, 2012 compared to the same period of 2011 was primarily due to a change in the mix of business resulting from the growth of our Nav Re division and, to a lesser extent, the expansion of products offered by our Professional Liability division where our retention ratios are higher.

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Net Written Premiums

Net written premiums increased 25.9% for the three months ended March 31, 2012 compared to the same period in 2011. The increase is due to the impact of higher gross written premiums for the three months ended March 31, 2012, and to a lesser extent lower premium cessions, as discussed above.

Net Earned Premiums

Net earned premiums increased 20.1% for the three months ended March 31, 2012 compared to the same period in 2011 as result of a change in the mix of business driven by the growth of our Nav Re division, specifically the A&H lines, which are recognized in earnings over a longer exposure period than our other lines of business.

Net Investment Income

Our net investment income was derived from the following sources:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities	$	15,411		$	17,192
Equity securities		947			783
Short-term investments		312			267
Total investment income		16,670			18,242
Investment expenses		(5,412	)		(858	)
Net investment income	$	11,258		$	17,384

The total investment income before investment expenses decreased 9% for the three months ended March 31, 2012 compared to 2011, primarily due to lower investment yields and shorter portfolio duration. The annualized pre-tax investment yield, excluding net realized gains and losses and net other-than-temporary impairment losses recognized in earnings, was 2.0% and 3.3% for the three months ended March 31, 2012 and 2011, respectively. The portfolio duration was 3.7 years and 4.1 years for the three months ended March 31, 2012 and 2011, respectively.

The 2.0% average yield for the current quarter includes investment expenses of $4.5 million for estimated interest expense related to a summary judgment order entered against the Company for foregone interest on previously paid balances that were allegedly overdue on certain reinsurance agreements. Refer to Note 9, Commitments and Contingencies, for further detail on the aforementioned legal proceedings. Excluding the impact of the aforementioned accrued interest expense, the average yield for the current quarter would have been 2.8%, reflective of the general decline in market yields and a shorter portfolio duration.

Net Other-Than-Temporary Impairment Losses Recognized In Earnings

Our net other-than-temporary impairment (“OTTI”) losses recognized in earnings for the periods indicated were as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities	$	(11	)	$	(11	)
Equity securities		(143	)		(230	)
OTTI recognized in earnings	$	(154	)	$	(241	)

The significant inputs used to measure the amount of credit loss recognized in earnings were actual delinquency rates, default probability assumptions, severity assumptions and prepayment assumptions. Projected losses are a function of both loss severity and probability of default. 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.

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Net Realized Gains and Losses

Our realized gains and losses for the periods indicated were as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities:
Gains	$	3,142		$	2,867
Losses		(1,300	)		(4,256	)
Fixed maturities, net	$	1,842		$	(1,389	)
Equity securities:
Gains	$	—		$	—
Losses		—			—
Equity securities, net	$	—		$	—
Net realized gains (losses)	$	1,842		$	(1,389	)

Net realized gains and losses are generated as part of the normal ongoing management of our investment portfolio. Net realized gains of $1.8 million for the three months ended March 31, 2012 are due to the sale of corporate bonds and municipal bonds compared to net realized losses of $1.4 million for the comparable period in 2011.

Other Income/Expense

Other income (expense) for the three months ended March 31, 2012 and 2011 was approximately $1 million, and primarily includes foreign exchange gains and losses from our Lloyd’s Operations, commission income and inspection fees related to our specialty insurance business.

Expenses

Net Losses and Loss Adjustment Expenses

The ratio of net losses and LAE to net earned premiums (“loss ratios”) for the three months ended March 31, 2012 and 2011 is presented in the following table:

	Three Months Ended March 31,
Net Loss and LAE Ratio	2012			2011
Net Loss and LAE Payments		64.6	%		59.2	%
Current year reserves		3.5	%		15.1	%
Subtotal—current year loss ratio		68.1	%		74.3	%
Prior year deficiencies (redundancies)		-3.7	%		2.3	%
Net loss and LAE ratio		64.4	%		76.6	%

The net loss and LAE ratio for the three months ended March 31, 2012 decreased 12.2 percentage points to 64.4% from 76.6% for the three months ended March 31, 2011. The improvement in the loss ratio reflects improved loss experience in the majority of our underwriting businesses, the lack of large energy losses in our NavTech business and $6.9 million of prior year net reserve redundancies driven mostly by our NavTech business. The overall improved loss experience was offset by the losses related to the grounding of the Costa Concordia in our Marine business.

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The segment and line of business breakdown of the net loss and LAE ratios for the three months ended March 31, 2012 and 2011 are as follows:

	Three Months Ended March 31,
Net Loss and LAE Ratio	2012			2011
Insurance Companies:
Marine		78.7	%		69.0	%
Property Casualty		64.7	%		83.7	%
Professional Liability		69.7	%		70.9	%
Insurance Companies		69.3	%		75.7	%
Lloyd’s Operations:
Marine		62.3	%		67.3	%
Property Casualty		30.8	%		78.0	%
Professional Liability		31.6	%		163.4	%
Lloyd’s		52.0	%		78.3	%
Net loss and LAE ratio		64.4	%		76.6	%

Prior Year Reserve Deficiencies/Redundancies

The relevant factors that may have a significant impact on the establishment and adjustment of losses and LAE reserves can vary by line of business and from period to period. As part of our regular review of prior reserves, management, in consultation with our actuaries, may determine, based on their judgment, that certain assumptions made in the reserving process in prior year periods may need to be revised to reflect various factors, likely including the availability of additional information. Based on their reserve analyses, management may make corresponding reserve adjustments.

The segment and line of business breakdowns of prior period net reserve deficiencies (redundancies) for the three months ended March 31, 2012 and 2011 is as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Insurance Companies:
Marine	$	(495	)	$	748
Property Casualty		(3,296	)		1,183
Professional Liability		1,075			(709	)
Insurance Companies	$	(2,716	)	$	1,222
Lloyd’s Operations:
Marine	$	55		$	(889	)
Property Casualty		(2,738	)		(1,141	)
Professional Liability		(1,467	)		4,241
Lloyd’s	$	(4,150	)	$	2,211
Total deficiencies (redundancies)	$	(6,866	)	$	3,433

The following is a discussion of relevant factors related to the $6.9 million prior period net reserve redundancies recorded in the first quarter of the 2012:

The Insurance Companies recorded $2.7 million of net prior period reserve redundancies driven by net favorable development from our Property Casualty business. The Property Casualty business reported net favorable development of $2.4 million and $2.2 million from the NavTech and Primary Casualty divisions, respectively, across multiple lines and underwriting years, partially offset by $1.6 million of net prior period reserve deficiencies from our Nav Re division.

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Our Lloyd’s Operations recorded $4.2 million of net prior period reserve redundancies driven by the Property Casualty business, namely Lloyd’s NavTech.

The following is a discussion of relevant factors related to the $3.4 million prior period net reserve deficiency recorded in the first quarter of 2011:

The Insurance Companies recorded $1.2 million of prior period net reserve deficiencies which was driven by adverse development of $0.7 million from the Marine division and $1.2 million in the Property Casualty division. Within the Marine development there was adverse development on inland marine business of $3.2 million due to a series of reported losses that exceeded our expectations, partially offset by favorable development on marine liability and craft business due to favorable loss emergence relative to expectations. Within the Property Casualty development there was $1.4 million of adverse development on the New York Construction segments which is a declining book of business. While there was prior year loss activity on several other lines, none of the activity was noteworthy.

The Lloyd’s Operations recorded $2.2 million of prior period net reserve deficiencies resulting from adverse development of $4.2 million in Professional Liability driven by adverse claims movements for underwriting years 2006 and 2007 in the Errors and Omissions (“E&O”) line of business. Partially offsetting that was redundancies in Marine and NavTech business across multiple lines and underwriting years.

Commission Expenses

Commission expenses paid to brokers and agents are generally based on a percentage of gross written premiums and are partially offset by ceding commissions we may receive on ceded written premiums. Commissions are generally deferred and recorded as deferred policy acquisition costs to the extent that they relate to unearned premium. The percentage of commission expenses to net earned premiums (“commission expense ratio”) for the three months ended March 31, 2012, and 2011 were 16.1% and 17.2%, respectively. The decrease in the commission expense ratio for the three months ended March 31, 2012 when compared to the same period in 2011 can be attributed to a mix change in business.

Other Operating Expenses

Other operating expenses were consistent at approximately $36 million for the three months ended March 31, 2012 and 2011.

Interest Expense

Interest expense relates to our Senior Notes due May 1, 2016. Interest on these Senior Notes is due each May 1 and November 1 and the effective interest rate, based on the proceeds net of discount and all issuance costs, is approximately 7.17%. Interest expense for the three months ended March 31, 2012 was $2.0 million and remained flat with the same period in 2011.

Income Taxes

We recorded income tax expense of $3.3 million for the three months ended March 31, 2012 compared to an income tax benefit of $4.5 million for the comparable period in 2011, resulting in effective tax rates of 29.3.% and 36.3%, respectively. The effective tax rate on net investment income was 25.2% and 28.5% for the three months ended March 31, 2012 and 2011, respectively.

As of March 31, 2012, the net deferred federal, foreign, state and local tax liabilities were $2.7 million, compared to net deferred tax liabilities of $6.3 million as of December 31, 2011 with the change primarily due to fluctuations in the value of our investment portfolio.

We had net state and local deferred tax assets amounting to potential future tax benefits of $0.5 million and $0.2 million as of March 31, 2012 and December 31, 2011, respectively. Included in the deferred tax assets are state and local net operating loss carry-forwards of $0.2 million as of both March 31, 2012 and December 31, 2011. A valuation allowance was established for the full amount of these potential future tax benefits due to uncertainty associated with their realization. Our state and local tax carry-forwards as of March 31, 2012 expire from 2024 to 2031.

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Segment Information

We classify our business into two underwriting segments consisting of the Insurance Companies and the Lloyd’s Operations, which are separately managed, and a Corporate segment. Segment data for each of the two underwriting segments include allocations of the operating expenses of the wholly-owned underwriting management companies and The Navigators Group, Inc.’s (the “Parent Company’s”) operating expenses and related income tax amounts. The Corporate segment consists of the Parent Company’s investment income, interest expense and the related tax effect.

We evaluate the performance of each segment based on its underwriting and GAAP results. The Insurance Companies’ and the Lloyd’s Operations’ results are measured by taking into account net earned premium, net loss and LAE, commission expenses, other operating expenses and other income (expense). The Corporate segment consists of the Parent Company’s investment income, interest expense and the related tax effect. Each segment also maintains its own investments, on which it earns income and realizes capital gains or losses. Our underwriting performance is evaluated separately from the performance of our investment portfolios.

Following are the financial results of our two underwriting segments.

Insurance Companies

The Insurance Companies consist of Navigators Insurance, including its U.K. Branch, and its wholly-owned subsidiary, Navigators Specialty. They are primarily engaged in underwriting marine insurance and related lines of business, professional liability insurance and specialty lines of business including contractors general liability insurance, commercial umbrella and primary and excess casualty businesses. Navigators Specialty underwrites specialty and professional liability insurance on an excess and surplus lines basis. Navigators Specialty is 100% reinsured by Navigators Insurance.

The following table sets forth the results of operations for the Insurance Companies for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,						Percentage Change
In thousands	2012			2011			YTD
Gross written premiums	$	248,338		$	206,776			20	%
Net written premiums		181,250			130,740			39	%
Net earned premiums		131,548			98,820			33	%
Net losses and loss adjustment expenses		(91,177	)		(74,797	)		22	%
Commission expenses		(19,301	)		(12,340	)		56	%
Other operating expenses		(25,345	)		(26,799	)		-5	%
Other income (expense)		1,642			1,691			-3	%
Underwriting profit (loss)	$	(2,633	)	$	(13,425	)		80	%
Net investment income		8,935			14,983			-40	%
Net realized gains (losses)		1,875			(245	)		NM
Income (loss) before income taxes	$	8,177		$	1,313			NM
Income tax expense (benefit)		2,258			228			NM
Net income (loss)	$	5,919		$	1,085			NM
Losses and loss adjustment expenses ratio		69.3	%		75.7	%
Commission expense ratio		14.7	%		12.5	%
Other operating expense ratio (1)		18.0	%		25.4	%
Combined ratio		102.0	%		113.6	%

(1) - Includes Other operating expenses & Other income (expense)

NM -Percentage change not meaningful

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Our Insurance Companies reported net income of $6.0 million for the three months ended March 31, 2012 compared to $1.1 million for the same period in 2011. The increase in net income for the three months ended March 31, 2012 as compared to the same period in 2011 was largely attributable to stronger underwriting results, partially offset by a reduction in net investment income due to lower investment yields and a shorter portfolio duration.

Our Insurance Companies’ combined ratio for the three months ended March 31, 2012 was 102.0% compared to 113.6% for the same period in 2011. Our Insurance Companies’ pre-tax underwriting results increased by $10.8 million to a $2.6 million pre-tax underwriting loss for the three months ended March 31, 2012 compared to an underwriting loss of $13.4 million for the same period in 2011.

Our Insurance Companies’ underwriting results for the current quarter reflect a loss related to the grounding of the cruise ship, Costa Concordia. This event generated a gross loss of $32.2 million and a net loss of $5.5 million that was fully absorbed through our IBNR reserves. As a result of this event, we incurred $8.9 million in reinsurance reinstatement premiums, $3.4 million of which were absorbed by our reinsurance reinstatement premium accrual. This loss was partially offset by net prior period reserve redundancies of $3.3 million related to our Property Casualty business.

Our underwriting results for the same period in 2011 primarily included net adverse activity of $11.5 million consisting of a net adverse impact of $6.1 million in large losses from our energy business, $4.2 million in accrued reinstatement premiums reflective of our shift to excess-of-loss reinsurance protection in our Marine business and $1.2 million of prior year development in our Property Casualty business.

Insurance Companies’ Gross Written Premiums

Marine Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended March 31,				Percentage Change
In thousands	2012		2011		YTD
Marine liability	$	18,241	$	23,417		-22.1	%
Inland marine		11,838		10,651		11.1	%
Cargo		8,458		6,511		29.9	%
Craft/fishing vessel		8,244		8,863		-7.0	%
P&I		6,616		4,558		45.1	%
Bluewater hull		3,559		4,276		-16.8	%
Transport		413		6,580		-93.7	%
Other		4,496		5,492		-18.1	%
Total Marine	$	61,865	$	70,348		-12.1	%

The Insurance Companies’ Marine gross written premiums for the three months ended March 31, 2012 decreased 12.1% to $61.9 million compared to the same period during 2011 primarily due to the Transport and Marine Liability products written by our U.K. Branch, which effective this quarter are being written through our Lloyd’s Operations. The aforementioned decreases were slightly offset by growth in Inland Marine as a result of new business and a 2.0% increase in the average renewal rates.

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Property Casualty Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended March 31,				Percentage Change
In thousands	2012		2011		YTD
Nav Re	$	73,422	$	38,118		92.6	%
Excess Casualty		37,654		26,261		43.4	%
Primary casualty:
Construction liability		13,644		20,225		-32.5	%
Other Primary Casualty		10,281		4,603		123.4	%
Environmental		5,210		3,844		35.5	%
Total Primary Casualty		29,135		28,672		1.6	%
Offshore energy		13,228		11,963		10.6	%
Other		2,480		7,874		-68.5	%
Total Property Casualty	$	155,919	$	112,888		38.1	%

The Insurance Companies’ Property Casualty gross written premiums for the three months ended March 31, 2012 increased by 38.1% to $155.9 million compared to the same period in 2011. The increase was primarily driven by our Nav Re division which increased $35.3 million, or 92.6%, to $73.4 million across all business lines as the division continues to achieve successful growth since its establishment in late 2010. Additionally, we saw growth in our Excess Casualty resulting from strong production attributable to investments in additional underwriting staff and dislocation among certain competitors.

Professional Liability Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended March 31,					Percentage Change
In thousands	2012			2011		YTD
E&O	$	21,933		$	13,816		58.8	%
D&O (public and private)		8,622			8,914		-3.3	%
Other		(1	)		810		-100.1	%
Total Professional Liability	$	30,554		$	23,540		29.8	%

The Insurance Companies’ Professional Liability gross written premiums for the three months ended March 31, 2012 increased by 29.8% to $30.6 million compared to the same period during 2011. The increase is related to our E&O division and is driven by a Real Estate program which was established in the third quarter of 2011 and wrote $4.8 million in gross written premium for the current quarter. The increase in E&O is also attributed to an overall 3.1% increase in average renewal rates.

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Lloyd’s Operations

The Lloyd’s Operations primarily underwrite marine and related lines of business along with professional liability insurance, and construction coverage for onshore energy business at Lloyd’s through Syndicate 1221. Our Lloyd’s Operations includes NUAL, a Lloyd’s underwriting agency that manages Syndicate 1221.

The following table sets forth the results of operations of the Lloyd’s Operations for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31,						Percentage Change
In thousands	2012			2011			YTD
Gross written premiums	$	94,811		$	89,507			6	%
Net written premiums		61,795			62,336			-1	%
Net earned premiums		51,571			53,658			-4	%
Net losses and loss adjustment expenses		(26,808	)		(41,991	)		-36	%
Commission expenses		(10,886	)		(14,407	)		-24	%
Other operating expenses		(10,962	)		(9,776	)		12	%
Other income (expense)		6			(153	)		104	%
Underwriting profit (loss)	$	2,921		$	(12,669	)		123	%
Net investment income		2,283			2,255			1	%
Net realized gains (losses)		(187	)		(1,385	)		-86	%
Income (loss) before income taxes	$	5,017		$	(11,799	)		143	%
Income tax expense (benefit)		1,726			(4,056	)		143	%
Net income (loss)	$	3,291		$	(7,743	)		143	%
Losses and loss adjustment expenses ratio		52.0	%		78.3	%
Commission expense ratio		21.1	%		26.8	%
Other operating expense ratio (1)		21.2	%		18.5	%
Combined ratio		94.3	%		123.6	%

(1) - Includes Other operating expenses & Other income (expense)

Our Lloyd’s Operations reported net income of $3.3 million for the three months ended March 31, 2012 compared to a net loss of $7.7 million for the same period in 2011. The increase in net income for the three months ended March 31, 2012 as compared to the same period in 2011 was largely attributable to stronger underwriting results generated by a reduction in net adverse activity from 2011.

Our Lloyd’s Operations’ combined ratio for the three months ended March 31, 2012 was 94.3% compared to 123.6% for the same period in 2011. Our Lloyd’s Operations’ pre-tax underwriting results increased by $15.6 million to a $2.9 million pre-tax underwriting profit for the three months ended March 31, 2012 compared to underwriting loss of $12.7 million for the same period in 2011. The increase in pre-tax underwriting results is primarily related to stronger underwriting results.

Our Lloyd’s Operations’ underwriting results for the current quarter reflect a loss related to the grounding of the cruise ship, Costa Concordia. This event generated a gross loss of $6.7 million and a net loss of $2.0 million that was fully absorbed through our IBNR reserves. As a result of this event, we incurred $1.9 million in reinsurance reinstatement premiums, $0.9 million of which were absorbed by our reinsurance reinstatement premium accrual. This loss was partially offset by net prior period reserve redundancies of $4.2 million related to our Property Casualty and Professional Liability businesses.

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Our Lloyd’s Operations underwriting results for the same period in 2011 included adverse activity of $10.7 million primarily consisting of a net adverse impact of $4.8 million in large losses from our energy business, $3.3 million in accrued reinstatement premiums reflective of our shift to excess of loss reinsurance protection in our Marine business, and $2.6 million in sliding scale commission adjustments related to large loss activity that reduced our ceding commission benefit on a large quota share treaty.

Lloyd’s Operations’ Gross Written Premiums

We have controlled 100% of Syndicate 1221’s stamp capacity since 2006. Stamp capacity is a measure of the amount of premium a Lloyd’s syndicate is authorized to write based on a business plan approved by the Council of Lloyd’s. Syndicate 1221’s stamp capacity is £184 million ($294 million) in 2012 compared to £175 million ($280 million) in 2011.

Marine Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended March 31,				Percentage Change
In thousands	2012		2011		YTD
Marine and energy liability	$	28,934	$	25,863		11.9	%
Cargo and specie		19,974		20,009		-0.2	%
Assumed reinsurance		7,073		7,775		-9.0	%
War		3,286		4,177		-21.3	%
Hull		2,508		3,331		-24.7	%
Other		555		—		NM
Total Marine	$	62,330	$	61,155		1.9	%

NM - Percentage change not meaningful

The Lloyd’s Operations’ Marine gross written premiums were consistent at approximately $62 million for the three months ended March 31, 2012 and 2011. Lloyd’s Marine and energy liability increased approximately $3.1 million as a result of new business, in part due to the transfer of Marine and Transport business that was previously written by the UK Branch, as discussed earlier, and an increase in average renewal rates, mostly offset by a reduction in Hull and Assumed reinsurance.

Property Casualty Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended				Percentage
	March 31,				Change
In thousands	2012		2011		YTD
Offshore energy	$	11,319	$	10,285		10.1	%
Engineering and construction		8,196		4,456		83.9	%
Onshore energy		4,226		4,367		-3.2	%
Other		—		194		-100.0	%
Total Property Casualty	$	23,741	$	19,302		23.0	%

The Lloyd’s Operations’ Property Casualty gross written premiums increased 23.0% for the three months ended March 31, 2012 compared to the same period in 2011. The increase is primarily due to growth in Engineering and Construction as a result of rate increases prompted by a contraction in the market as well as a slight increase in Offshore energy resulting from an average increase in renewal rates of 6.0%.

43

Professional Liability Premiums.    The gross written premiums for the three months ended March 31, 2012 and 2011 consisted of the following:

	Three Months Ended March 31,				Percentage Change
In thousands	2012		2011		YTD
D&O (public and private)	$	6,430	$	6,309		1.9	%
E&O		2,310		2,741		-15.7	%
Total Professional Liability	$	8,740	$	9,050		-3.4	%

The Lloyd’s Operations’ Professional Liability gross written premiums decreased 3.4% for the three months ended March 31, 2012 compared to the same period in 2011, due to restructuring the E&O and D&O businesses. E&O gross written premiums declined 15.7% from the prior year due to exiting areas of business that were deemed unprofitable as well as reducing our number of underwriters. The average renewal premium rates for the Professional Liability division decreased approximately 2.3% compared to the same period in 2011.

Capital Resources

We monitor our capital adequacy to support our business on a regular basis. The future capital requirements of our business will depend on many factors, including our ability to write new business successfully and to establish premium rates and reserves at levels sufficient to cover losses. Our ability to underwrite is largely dependent upon the quality of our claims paying and financial strength ratings as evaluated by independent rating agencies. In particular, we require (1) sufficient capital to maintain our financial strength ratings, as issued by several ratings agencies, at a level considered necessary by management to enable our Insurance Companies to compete, (2) sufficient capital to enable our Insurance Companies to meet the capital adequacy tests performed by statutory agencies in the United States and the United Kingdom and (3) letters of credit and other forms of collateral that are necessary to support the business plan of our Lloyd’s Operations.

Our capital resources consist of funds deployed or available to be deployed to support our business operations. As of March 31, 2012 and December 31, 2011, our capital resources were as follows:

	March 31,			December 31,
In thousands	2012			2011
Senior Notes	$	114,312		$	114,276
Stockholders’ equity		818,217			803,435
Total capitalization	$	932,529		$	917,711
Ratio of debt to total capitalization		12.3	%		12.5	%

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 the 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.

In July 2009, we filed a universal shelf registration statement with the Securities and Exchange Commission. This registration statement, which expires in July 2012, allows for the future possible offer and sale by the Company of up to $500 million in the aggregate of various types of securities including common stock, preferred stock, debt securities, depositary shares, warrants, units or stock purchase contracts, stock purchase units and trust preferred securities guaranteed by the Parent Company. The shelf registration statement enables us to efficiently access the public equity or debt markets in order to meet future capital needs, if necessary. This report is not an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state.

44

We primarily rely upon dividends from our subsidiaries to meet our Parent Company’s obligations. Since the issuance of the senior debt in April 2006, the Parent Company’s cash obligations primarily consist of semi-annual interest payments on the senior debt which are currently $4.0 million. Going forward, the interest payments and any share repurchases may be made from funds currently at the Parent Company or dividends from its subsidiaries. The dividends have historically been paid by Navigators Insurance Company. Based on the March 31, 2012 surplus of Navigators Insurance Company, the approximate maximum amount available for the payment of dividends by Navigators Insurance Company during the preceding 12 month period without prior regulatory approval is $60.4 million. During the preceding 12 month period Navigators Insurance Company declared and paid $45.0 million of dividends to the Parent Company, $10.0 million of which were declared and paid in the first quarter of 2012.

Condensed Parent Company balance sheets as of March 31, 2012 (unaudited) and December 31, 2011 are shown in the table below:

	March 31, 2012		December 31, 2011
In thousands
Cash and investments	$	17,950	$	8,315
Investments in subsidiaries		900,717		895,047
Goodwill and other intangible assets		2,534		2,534
Other assets		14,873		13,806
Total assets	$	936,074	$	919,702
Senior Notes	$	114,312	$	114,276
Accounts payable and other liabilities		191		649
Accrued interest payable		3,354		1,342
Total liabilities	$	117,857	$	116,267
Stockholders’ equity	$	818,217	$	803,435
Total liabilities and stockholders’ equity	$	936,074	$	919,702

On April 1, 2011, we entered into a $165 million credit facility agreement with ING Bank N.V., London Branch, individually and as Administrative Agent, and a syndicate of lenders. The credit facility, which is denominated in U.S. dollars, is utilized to fund our participation in Syndicate 1221 through letters of credit for the 2011 and 2012 underwriting years, as well as open prior years. The letters of credit issued under the facility are denominated in British pounds and their aggregate face amount will fluctuate based on exchange rates. The ability to issue new letters of credit expired on December 31, 2011. If any letters of credit remain outstanding under the facility after December 31, 2012, we would be required to post additional collateral to secure the remaining letters of credit. As of March 31, 2012, letters of credit with an aggregate face amount of $150.7 million were outstanding under the credit facility.

This credit facility contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. The credit facility also provides for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by the Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, or a change in control of the Company. The letter of credit facility is secured by a pledge of the stock of certain insurance subsidiaries of the Company. To the extent the aggregate face amount issued under the credit facility exceeds the commitment amount, we are required to post collateral with the lead bank of the consortium. We were in compliance with all covenants under the credit facility as of March 31, 2012.

The applicable margin and applicable fee rate payable under the credit facility are based on a tiered schedule that is based on the Company’s then-current ratings issued by Standard & Poors (“S&P”) and Moody’s Investor Services (“Moody’s”) with respect to the Company’s Senior Notes without third-party credit enhancement, and the amount of the Company’s own collateral utilized to fund its participation in Syndicate 1221.

45

Time lags do occur in the normal course of business between the time gross loss reserves are paid by the Company and the time such gross paid losses are billed and collected from reinsurers. Reinsurance recoverable amounts related to those gross loss reserves as of March 31, 2012 are anticipated to be billed and collected over the next several years as the gross loss reserves are paid by the Company.

Generally, for pro rata or quota share reinsurers, we issue quarterly settlement statements for premiums less commissions and paid loss activity, which are expected to be settled within 45 days. We have the ability to issue “cash calls” requiring such reinsurers to pay losses whenever paid loss activity for a claim ceded to a particular reinsurance treaty exceeds a predetermined amount (generally $0.5 million to $1.0 million) as set forth in the pro rata treaty. For the Insurance Companies, cash calls must generally be paid within 30 calendar days. There is generally no specific settlement period for the Lloyd’s Operations cash call provisions, but such billings have historically on average been paid within 45 calendar days.

Generally, for excess-of-loss reinsurers we pay quarterly deposit premiums based on the estimated subject premiums over the contract period (usually one year) that are subsequently adjusted based on actual premiums determined after the expiration of the applicable reinsurance treaty. Paid losses subject to excess-of-loss recoveries are generally billed as they occur and are usually settled by reinsurers within 30 calendar days for the Insurance Companies and 30 business days for the Lloyd’s Operations.

We sometimes withhold funds from reinsurers and may apply ceded loss billings against such funds in accordance with the applicable reinsurance agreements.

Liquidity

Consolidated Cash Flows

Net cash provided by operating activities was $16.4 million for the three months ended March 31, 2012 compared to $13.3 million for the same period in 2011. The increase in cash flow from operations was due to improved collections on premium receivables and reinsurance recoverables, partially offset by an increase in paid losses.

Net cash used in investing activities was $98.5 million for the three months ended March 31, 2012 compared to net cash provided by investing activities of $6.9 million for the same period in 2011. The increase in cash used by investing activities is primarily due to the ongoing management of our investment portfolio.

Net cash provided by financing activities was $0.3 million for the three months ended March 31, 2012 compared to net cash used in financing activities of $12.6 million for the comparable period in 2011. The reduction in cash used by financing activities relates to our share repurchase program, which expired at the end of 2011.

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 its 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 the Company. The payment of gross claims and related collections from reinsurers with respect to large losses could significantly impact our liquidity needs. However, we expect to collect our paid reinsurance recoverables generally under the terms described above.

46

Investments

As of March 31, 2012, the weighted average rating of our fixed maturity investments was “AA” by S&P and “Aa” by Moody’s. The entire fixed maturity investment portfolio, except for investments with a fair value of $15.7 million, consists of investment grade bonds. As of March 31, 2012, our portfolio had a duration of 3.7 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 March 31, 2012 and December 31, 2011, all fixed maturity securities and equity securities held by us were classified as available-for-sale.

The following tables set forth our cash and investments as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	418,876	$	8,032	$	(856	)	$	411,700	$	—
States, municipalities and political subdivisions Mortgage-backed and asset-backed securities:		398,399		28,185		(156	)		370,370		—
Agency mortgage-backed securities		385,239		16,240		(7	)		369,006		—
Residential mortgage obligations		20,254		35		(2,009	)		22,228		(1,037	)
Asset-backed securities		49,077		874		(45	)		48,248		—
Commercial mortgage-backed securities		212,609		13,248		(76	)		199,437		—
Subtotal	$	667,179	$	30,397	$	(2,137	)	$	638,919	$	(1,037	)
Corporate bonds		459,109		17,945		(923	)		442,087		—
Total fixed maturities	$	1,943,563	$	84,559	$	(4,072	)	$	1,863,076	$	(1,037	)
Equity securities-common stocks		102,400		27,263		(342	)		75,479		—
Short-term investments		202,977		—		—			202,977		—
Cash		45,508		—		—			45,508		—
Total	$	2,294,448	$	111,822	$	(4,414	)	$	2,187,040	$	(1,037	)

	As of December 31, 2011
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	336,070	$	8,979	$	(383	)	$	327,474	$	—
States, municipalities and political subdivisions Mortgage-backed and asset-backed securities:		410,836		28,887		(108	)		382,057		—
Agency mortgage-backed securities		395,860		17,321		(3	)		378,542		—
Residential mortgage obligations		23,148		8		(2,848	)		25,988		(1,682	)
Asset-backed securities		48,934		695		(75	)		48,314		—
Commercial mortgage-backed securities		216,034		10,508		(593	)		206,119		—
Subtotal	$	683,976	$	28,532	$	(3,519	)	$	658,963	$	(1,682	)
Corporate bonds		457,187		15,743		(6,772	)		448,216		—
Total fixed maturities	$	1,888,069	$	82,141	$	(10,782	)	$	1,816,710	$	(1,682	)
Equity securities-common stocks		95,849		23,240		(958	)		73,567		—
Short-term investments		122,220		—		—			122,220		—
Cash		127,360		—		—			127,360
Total	$	2,233,498	$	105,381	$	(11,740	)	$	2,139,857	$	(1,682	)

47

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 debt securities in unrealized loss positions that are not other-than-temporarily impaired before recovery. 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 investment for impairment losses could result in a significant change in impairment losses reported in the consolidated financial statements.

Invested assets increased since the prior comparable period primarily due to unrealized gains and cash flow from operations. The annualized pre-tax investment yield, excluding net realized gains and losses and net other-than-temporary impairment losses recognized in earnings, was 2.0% and 3.3% for the three months ended March 31, 2012 and 2011, respectively. The 2.0% average yield for the current quarter includes investment expenses of $4.5 million for estimated interest expense related to a summary judgment order entered against the Company for foregone interest on previously paid balances that were allegedly overdue on certain reinsurance agreements. Refer to Note 9, Commitments and Contingencies, for further detail on the aforementioned legal proceedings. Excluding the impact of the aforementioned accrued interest expense, the average yield for the current quarter would have been 2.8%, reflective of the general decline in market yields and shorter portfolio duration.

The tax equivalent yields for the three months ended March 31, 2012 and 2011 on a consolidated basis were 3.4% and 3.9%, respectively. The portfolio duration was 3.7 years and 4.1 years for the three months ended March 31, 2012 and 2011, respectively. Since the beginning of 2012, the tax-exempt portion of our investment portfolio has decreased by $22.2 million to approximately 18.0% of the fixed maturities investment portfolio at March 31, 2012 compared to approximately 19.7% at December 31, 2011.

We are a specialty insurance company and periods of moderate economic recession or inflation tend not to have a significant direct effect on our 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.

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity as of March 31, 2012 are shown in the following table:

	As of March 31, 2012
In thousands	Fair Value		Amortized Cost
Due in one year or less	$	46,615	$	46,244
Due after one year through five years		627,418		611,661
Due after five years through ten years		385,720		363,151
Due after ten years		216,631		203,101
Mortgage- and asset-backed securities		667,179		638,919
Total	$	1,943,563	$	1,863,076

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. Due to the periodic repayment of principal, the aggregate amount of mortgage-backed and asset-backed securities is estimated to have an effective maturity of approximately 3.8 years.

48

The following table shows the amount and percentage of our fixed maturities as of March 31, 2012 by S&P credit rating or, if an S&P rating is not available, the equivalent Moody’s rating. The table includes fixed maturities at fair value, and the total rating is the weighted average quality rating.

In thousands	Rating	Fair Value		Percent of Total
Rating description:
Extremely strong	AAA	$	316,690		16	%
Very strong	AA		1,076,193		56	%
Strong	A		411,864		21	%
Adequate	BBB		123,112		6	%
Speculative	BB & Below		11,833		1	%
Not rated	NR		3,871		0	%
Total	AA	$	1,943,563		100	%

The following table sets forth our U.S. Treasury bonds, Agency bonds, and Foreign government bonds as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost
U.S. Treasury bonds	$	182,257	$	4,542	$	(404	)	$	178,119
Agency bonds		164,230		2,894		(302	)		161,638
Foreign government bonds		72,389		596		(150	)		71,943
Total	$	418,876	$	8,032	$	(856	)	$	411,700

	As of December 31, 2011
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost
U.S. Treasury bonds	$	137,228	$	5,422	$	—		$	131,806
Agency bonds		136,506		2,870		(133	)		133,769
Foreign government bonds		62,336		687		(250	)		61,899
Total	$	336,070	$	8,979	$	(383	)	$	327,474

The following table sets forth the composition of the investments categorized as states, municipalities and political subdivisions in our portfolio by 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 March 31, 2012. The securities that are not rated in the table below are primarily state bonds.

In thousands
Equivalent S&P Rating	Equivalent Moody’s Rating	Fair Value		Book Value		Net Unrealized Gain (Loss)
AAA/AA/A	Aaa/Aa/A	$	372,927	$	345,754	$	27,173
BBB	Baa		21,601		20,859		742
BB	Ba		—		—		—
B	B		—		—		—
CCC or lower	Caa or lower		—		—		—
NR	NR		3,871		3,757		114
Total		$	398,399	$	370,370	$	28,029

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The following table sets forth the municipal bond holdings by sectors as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012					As of December 31, 2011
In thousands	Fair Value		Percent of Total			Fair Value		Percent of Total
Municipal Sector:
General obligation	$	35,287		9	%	$	43,195		10	%
Prerefunded		16,947		4	%		18,636		5	%
Revenue		297,078		75	%		309,659		75	%
Taxable		49,087		12	%		39,346		10	%
Total	$	398,399		100	%	$	410,836		100	%

We own $125.3 million of municipal securities which are credit enhanced by various financial guarantors. As of March 31, 2012, the average underlying credit rating for these securities is A+. There has been no material adverse impact to our investment portfolio or results of operations as a result of downgrades of the credit ratings for several of the financial guarantors.

We analyze our mortgage-backed and asset-backed securities by credit quality of the underlying collateral distinguishing between the securities issued by the Federal National Mortgage Association (“FNMA”) and the Federal Home Loan Mortgage Corporation (“FHLMC”) which are Federal government sponsored entities, and the non-FNMA and non-FHLMC securities broken out by prime, Alternative A-paper (“Alt-A”) and subprime collateral. The securities issued by FNMA and FHLMC are the obligations of each respective entity. Legislation has provided for guarantees by the U.S. Government of up to $100 billion each for FNMA and FHLMC.

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 that is greater than prime but less than subprime. The subprime collateral consists of mortgages or other collateral from borrowers with low credit ratings. Such subprime and Alt-A categories are as defined by S&P.

The following table sets forth our agency mortgage-backed securities and residential mortgage obligations by those issued by the Government National Mortgage Association (“GNMA”), FNMA, and FHLMC, and the quality category (prime, Alt-A and subprime) for all other such investments as of March 31, 2012:

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost
Agency mortgage-backed securities:
GNMA	$	119,235	$	6,573	$	(2	)	$	112,664
FNMA		178,702		7,469		(5	)		171,238
FHLMC		87,302		2,198		—			85,104
Total agency mortgage-backed securities	$	385,239	$	16,240	$	(7	)	$	369,006
Residential mortgage-backed securities:
Prime	$	13,011	$	11	$	(1,629	)	$	14,629
Alt-A		2,009		3		(375	)		2,381
Subprime		—		—		—			—
Non-US RMBS		5,234		21		(5	)		5,218
Total residential mortgage-backed securities	$	20,254	$	35	$	(2,009	)	$	22,228

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The following table sets forth the composition of the investments categorized as residential mortgage obligations in our portfolio by 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 March 31, 2012:

In thousands		March 31, 2012
Equivalent S&P Rating	Equivalent Moody’s Rating	Fair Value		Book Value		Net Unrealized Gain (Loss)
AAA/AA/A	Aaa/Aa/A	$	7,497	$	7,683	$	(186	)
BBB	Baa		927		1,037		(110	)
BB	Ba		2,077		2,308		(231	)
B	B		1,978		2,325		(347	)
CCC or lower	Caa or lower		7,775		8,875		(1,100	)
NR	NR		—		—		—
Total		$	20,254	$	22,228	$	(1,974	)

Details of the collateral of our asset-backed securities portfolio as of March 31, 2012 are presented below:

In thousands	AAA		AA		A		BBB		BB		CCC		Fair Value		Amortized Cost		Unrealized Gain (Loss)
Auto loans	$	—	$	9,570	$	—	$	—	$	—	$	—	$	9,570	$	9,376	$	194
Credit cards		13,958		—		—		—		—		—		13,958		13,570		388
Time Share		—		—		14,439		—		—		—		14,439		14,213		226
Student Loans		6,710		2,716		—		—		—		—		9,426		9,433		(7	)
Miscellaneous		946		736		—		—		—		2		1,684		1,656		28
Total	$	21,614	$	13,022	$	14,439	$	—	$	—	$	2	$	49,077	$	48,248	$	829

The following table sets forth the composition of the investments categorized as commercial mortgage-backed securities in our portfolio by 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 March 31, 2012:

In thousands		March 31, 2012
Equivalent S&P Rating	Equivalent Moody’s Rating	Fair Value		Book Value		Net Unrealized Gain (Loss)
AAA/AA/A	Aaa/Aa/A	$	212,609	$	199,437	$	13,172
BBB	Baa		—		—		—
BB	Ba		—		—		—
B	B		—		—		—
CCC or lower	Caa or lower		—		—		—
NR	NR		—		—		—
Total		$	212,609	$	199,437	$	13,172

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The following table sets forth the composition of the investments categorized as corporate bonds in our portfolio by 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 March 31, 2012:

In thousands		March 31, 2012
Equivalent S&P Rating	Equivalent Moody’s Rating	Fair Value		Book Value		Net Unrealized Gain (Loss)
AAA/AA/A	Aaa/Aa/A	$	358,525	$	344,750	$	13,775
BBB	Baa		100,584		97,337		3,247
BB	Ba		—		—		—
B	B		—		—		—
CCC or lower	Caa or lower		—		—		—
NR	NR		—		—		—
Total		$	459,109	$	442,087	$	17,022

The company holds non-sovereign European securities of $67.1 million at fair value and $65.8 million at amortized cost primarily in the investment portfolio. This represents 3.3% of our total fixed income and equity portfolio. Our largest exposure is in the Netherlands with a total of $31.5 million followed by France with a total of $25.7 million. We have no exposure to Greece, Portugal, Italy or Spain.

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The following table summarizes all securities in a gross unrealized loss position as of March 31, 2012 and December 31, 2011, showing the aggregate fair value and gross unrealized loss by the length of time those securities had continuously been in a gross unrealized loss position as well as the number of securities:

	As of March 31, 2012						As of December 31, 2011
In thousands, except # of securities	Number of Securities		Fair Value		Gross Unrealized Loss		Number of Securities		Fair Value		Gross Unrealized Loss
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds
0-6 months		28	$	173,094	$	755		7	$	58,587	$	98
7-12 months		—		—		—		—		—		—
> 12 months		2		7,060		101		2		6,883		285
Subtotal		30	$	180,154	$	856		9	$	65,470	$	383
States, municipalities and political subdivisions
0-6 months		6	$	6,731	$	99		7	$	5,894	$	72
7-12 months		2		1,906		34		1		216		1
> 12 months		3		1,717		23		5		2,420		35
Subtotal		11	$	10,354	$	156		13	$	8,530	$	108
Agency mortgage-backed securities
0-6 months		4	$	7,368	$	7		3	$	5,087	$	3
7-12 months		—		—		—		—		—		—
> 12 months		—		—		—		—		—		—
Subtotal		4	$	7,368	$	7		3	$	5,087	$	3
Residential mortgage obligations
0-6 months		3	$	787	$	100		6	$	6,672	$	184
7-12 months		5		2,534		101		7		5,250		313
> 12 months		47		11,780		1,808		47		10,749		2,351
Subtotal		55	$	15,101	$	2,009		60	$	22,671	$	2,848
Asset-backed securities
0-6 months		—	$	—	$	—		2	$	4,933	$	12
7-12 months		4		5,291		45		5		6,645		63
> 12 months		1		2		—		1		2		—
Subtotal		5	$	5,293	$	45		8	$	11,580	$	75
Commercial mortgage-backed securities
0-6 months		7	$	9,311	$	45		6	$	5,465	$	29
7-12 months		2		185		6		3		6,840		550
> 12 months		2		1,040		25		3		1,503		14
Subtotal		11	$	10,536	$	76		12	$	13,808	$	593
Corporate bonds
0-6 months		9	$	37,306	$	138		52	$	135,516	$	4,539
7-12 months		20		39,538		575		18		27,561		1,457
> 12 months		6		7,900		210		8		14,898		776
Subtotal		35	$	84,744	$	923		78	$	177,975	$	6,772
Total fixed maturities		151	$	313,550	$	4,072		183	$	305,121	$	10,782
Equity securities - common stocks
0-6 months		1	$	2,032	$	15		4	$	3,320	$	587
7-12 months		2		3,262		327		1		1,629		371
> 12 months		—		—		—		—		—		—
Total equity securities		3	$	5,294	$	342		5	$	4,949	$	958

53

We analyze the unrealized losses quarterly to determine if any are other-than-temporary. The above unrealized losses have been determined to be temporary based on our policies.

In the above table the gross unrealized loss for the greater than 12 months category consists primarily of residential mortgage-backed securities. Residential mortgage-backed securities are a type of fixed income security in which residential mortgage loans are sold into a trust or special purpose vehicle, thereby securitizing the cash flows of the mortgage loans.

To determine whether the unrealized loss on structured securities is other-than-temporary, we project an expected principal loss under a range of scenarios and utilize the most likely outcomes. The analysis relies on actual collateral performance measures such as default rate, prepayment rate and loss severity. These assumptions are applied throughout the remaining term of the deal, incorporating the transaction structure and priority of payments, to generate loss adjusted cash flows. Results of the analysis will indicate whether the security ultimately incurs a loss or whether there is a material impact on yield due to either a projected loss or a change in cash flow timing. A break even default rate is also calculated. A comparison of the break even default rate to the actual default rate provides an indication of the level of cushion or coverage to the first dollar principal loss. The analysis applies the stated assumptions throughout the remaining term of the transaction to forecast cash flows, which are then applied through the transaction structure to determine whether there is a loss to the security. For securities in which a tranche loss is present, and the net present value of loss adjusted cash flows is less than book value, an impairment is recognized. The output data also includes a number of additional metrics such as average life remaining, original and current credit support, over 60 day delinquency and security rating.

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.

As of March 31, 2012, the largest single unrealized loss by issuer in the investment portfolio was $0.3 million.

The following table shows the S&P ratings and equivalent Moody’s ratings of the fixed maturity securities in our portfolio with gross unrealized losses as of March 31, 2012. Not all of the securities are rated by S&P and/or Moody’s.

In thousands			Gross Unrealized Loss					Fair Value
NAIC Rating	Equivalent S&P Rating	Equivalent Moody’s Rating	Amount		Percent of Total			Amount		Percent of Total
1	AAA/AA/A	Aaa/Aa/A	$	2,230		54	%	$	286,777		91	%
2	BBB	Baa		157		4	%		15,747		5	%
3	BB	Ba		236		6	%		1,623		1	%
4	B	B		346		8	%		1,978		1	%
5	CCC or lower	Caa or lower		144		4	%		931		0	%
6	NR	NR		959		24	%		6,494		2	%
Total			$	4,072		100	%	$	313,550		100	%

As of March 31, 2012, the gross unrealized losses in the table directly above were related to fixed maturity securities that are rated investment grade, which is defined as a security having an S&P rating of “BBB–” or higher, or a Moody’s rating of “Baa3” or higher, except for $1.7 million which is rated below investment grade or not rated. Unrealized losses on investment grade securities principally relate to changes in interest rates or changes in sector-related credit spreads since the securities were acquired.

54

The contractual maturity by the number of years until maturity for fixed maturity securities with unrealized losses as of March 31, 2012 is shown in the following table:

	As of March 31, 2012
	Gross Unrealized Losses					Fair Value
In thousands	Amount		Percent of Total			Amount		Percent of Total
Due in one year or less	$	102		3	%	$	12,586		4	%
Due after one year through five years		938		23	%		183,891		58	%
Due after five years through ten years		694		17	%		52,004		17	%
Due after ten years		201		5	%		26,771		9	%
Mortgage- and asset-backed securities		2,137		52	%		38,298		12	%
Total	$	4,072		100	%	$	313,550		100	%

The following table summarizes the gross unrealized investment losses by length of time where the fair value is less than 80% of amortized cost as of March 31, 2012:

	As of March 31, 2012
In thousands	Fixed Maturities		Equity Securities		Total
Less than three months	$	—	$	—	$	—
Longer than three months and less than six months		—		—		—
Longer than six months and less than twelve months		—		—		—
Longer than twelve months		547		—		547
Total	$	547	$	—	$	547

The table below summarizes our activity related to OTTI losses for the periods indicated:

	Three Months Ended March 31,
	2012				2011
In thousands, except # of securities	Number of Securities		Amount		Number of Securities		Amount
Total other-than-temporary impairment losses:
Corporate and other bonds		—	$	—		—	$	—
Commercial mortgage-backed securities		—		—		—		—
Residential mortgage-backed securities		1		55		1		33
Asset-backed securities		—		—		—		—
Equities		2		143		1		230
Total		3	$	198		2	$	263
Less: Portion of loss in accumulated other comprehensive income (loss):
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				44				22
Asset-backed securities				—				—
Equities				—				—
Total			$	44			$	22
Impairment losses recognized in earnings
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				11				11
Asset-backed securities				—				—
Equities				143				230
Total			$	154			$	241

55

During the three months ended March 31 2012, we recognized OTTI losses of $0.2 million related to one non-agency mortgage-backed security and two equity securities. During the comparable period in 2011, we recognized OTTI losses of $0.2 million related to residential mortgage-backed securities and one equity security. The significant inputs used to measure the amount of credit loss recognized in earnings were actual delinquency rates, default probability assumptions, severity assumptions and prepayment assumptions. Projected losses are a function of both loss severity and probability of default. 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.

Item 3.         Quantitative and Qualitative Disclosures about Market Risk

The following updates our disclosure regarding foreign currency exchange rate risk as previously stated in the Company’s 2011 Annual Report on Form 10-K.

Foreign Currency Exchange Rate Risk

Our Lloyd’s Operations are exposed to foreign currency exchange rate risk primarily related to foreign-denominated cash, cash equivalents and marketable securities (“foreign funds”), premiums receivable, reinsurance recoverables on paid and unpaid losses and loss adjustment expenses as well as reserves for losses and loss adjustment expenses. The principal currencies creating foreign currency exchange risk for the Lloyd’s Operations are the British pound, the Euro and the Canadian dollar. The Lloyd’s Operations manages its foreign currency exchange rate risk primarily through asset-liability matching.

Based on the primary foreign-denominated balances within the Lloyd’s Operations as of March 31, 2012 an assumed 5%, 10% and 15% negative currency movement would result in changes as follows:

	As of March 31, 2012
			Negative Currency Movement of
In millions	USD Equivalent		5%			10%			15%
Cash, cash equivalents and marketable securities at fair value	$	102.4	$	(5.1	)	$	(10.2	)	$	(15.4	)
Premiums receivable	$	32.7	$	(1.6	)	$	(3.3	)	$	(4.9	)
Reinsurance recoverables on paid, unpaid losses and LAE	$	61.8	$	(3.1	)	$	(6.2	)	$	(9.3	)
Reserves for losses and loss adjustment expenses	$	161.4	$	8.1		$	16.1		$	24.2

Item 4.         Controls and Procedures

(a) The Chief Executive Officer and Chief Financial Officer of the Company 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, such officers have concluded that as of the end of such period the 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 first fiscal quarter in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

56

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 them. We account for such activity through the establishment of unpaid loss and loss adjustment reserves. Our management believes that the 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 our consolidated financial condition, results of operations or cash flows.

Our subsidiaries are also from time to time 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, we believe we have valid defenses to these cases. Our management expects that the ultimate liability, if any, with respect to future 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.

In October 2010, Equitas, represented by Resolute Management Services Limited (“Resolute”), commenced a lawsuit in the Supreme Court of the State of New York (the “Court Proceeding”) and separate arbitration proceedings (the “Arbitration” and collectively with the Court Proceeding, the “Resolute Proceedings”) against Navigators Management Company, Inc. (“NMC”) a wholly-owned subsidiary of the Company. The arbitration demand and complaint in the Resolute Proceedings allege that NMC failed to make timely payments to Resolute under certain reinsurance agreements in connection with subrogation recoveries received by NMC with respect to several catastrophe losses that occurred in the late 1980’s and early 1990’s.

On October 25, 2011, an order was issued in the Court Proceeding denying NMC’s motion for summary judgment and granting Resolute’s cross-motion for partial summary judgment (the “Partial Summary Judgment Order”). The Partial Summary Judgment Order found that NMC had breached its obligations under the reinsurance agreements at issue in the Court Proceeding and further found that Resolute was entitled to damages for unpaid interest at the statutory rate of 9%. On December 2, 2011, a Stipulation and Order was entered with the Court in favor of Resolute in the amount of $4.7 million with respect to the Partial Summary Judgment Order. Navigators disagreed with and appealed the Partial Summary Judgment Order. As a result of the entry of the Partial Summary Judgment Order on December 2, 2011, however, Navigators established an interest expense accrual of $4.7 million during the fourth quarter of 2011, pending the resolution of the appeal.

On March 9, 2012, the Arbitration Panel granted Resolute’s motion for summary judgment in the Arbitration and found that NMC breached its obligations under the reinsurance agreement and that Resolute was entitled to damages for unpaid interest at the New York statutory rate of 9%. The Arbitration Panel’s ruling is binding and non-appealable.

Navigators disagrees with the two summary judgment rulings in the Resolute Proceedings, but rather than continue to litigate these related matters and incur additional legal expenses, NMC entered into a settlement agreement with Resolute, effective as of April 19, 2012, and agreed to withdraw its appeal and fully and finally settle this dispute. Navigators has agreed to pay $9.2 million to Resolute as part of the settlement.

As a result of the settlement, Navigators recognized an additional interest expense accrual of $4.5 million during the first quarter of 2012.

57

Item 1A.         Risk Factors

There have been no material changes from the risk factors as previously disclosed in the Company’s 2011 Annual Report on Form 10-K.

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

58

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

59

Signatures

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

	The Navigators Group, Inc.
	(Registrant)
Date: May 4, 2012	/s/ Ciro M. DeFalco
	Ciro M. DeFalco
	Senior Vice President and Chief Financial Officer

60

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

61

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 months ended March 31, 2012 and 2011:

	Three Months Ended March 31,
In thousands, except share and per share amounts	2012		2011
Net income (loss)	$	7,904	$	(7,893	)
Basic weighted average shares		13,979,442		15,738,693
Effect of common stock equivalents:
Assumed exercise of stock options and vesting of stock grants		195,434		—
Diluted weighted average shares		14,174,875		15,738,693
Net income (loss) per common share:
Basic	$	0.57	$	(0.50	)
Diluted	$	0.56	$	(0.50	)

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: May 4, 2012	/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: May 4, 2012	/s/ Ciro M. DeFalco
	Name:	Ciro M. DeFalco
	Title:	Senior 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 March 31, 2012 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

May 4, 2012

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 March 31, 2012 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

Senior Vice President and Chief Financial Officer

May 4, 2012

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

Amount And Percentage Of Fixed Maturities And Short-term Investments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Rating	AA
Fair Value	$ 1,943,563	$ 1,888,069
Percent of Total	100.00%
Extremely strong
Rating	AAA
Fair Value	316,690
Percent of Total	16.00%
Very strong
Rating	AA
Fair Value	1,076,193
Percent of Total	56.00%
Strong
Rating	A
Fair Value	411,864
Percent of Total	21.00%
Adequate
Rating	BBB
Fair Value	123,112
Percent of Total	6.00%
Speculative
Rating	BB & Below
Fair Value	11,833
Percent of Total	1.00%
Not rated
Rating	NR
Fair Value	$ 3,871
Percent of Total	0.00%

XML

Fixed Maturities And Equity Securities By Asset Class That Are Measured At Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	$ 2,045,963	$ 1,983,918
Fixed maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	1,943,563	1,888,069
Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	418,876	336,070
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	398,399	410,836
Fixed maturities | Agency mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	385,239	395,860
Fixed maturities | Residential Mortgage Backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	20,254	23,148
Fixed maturities | Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	49,077	48,934
Fixed maturities | Commercial mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	212,609	216,034
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	667,179	683,976
Fixed maturities | Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	459,109	457,187
Equity Securities | Common stock
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	102,400	95,849
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	284,101	232,474
Level 1 | Fixed maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	181,701	136,625
Level 1 | Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	181,701	136,625
Level 1 | Equity Securities | Common stock
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	102,400	95,849
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	1,761,862	1,751,444
Level 2 | Fixed maturities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	1,761,862	1,751,444
Level 2 | Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	237,175	199,445
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	398,399	410,836
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	385,239	395,860
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	20,254	23,148
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	49,077	48,934
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	212,609	216,034
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	667,179	683,976
Level 2 | Fixed maturities | Corporate bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fixed maturities and equity securities, at fair Value	$ 459,109	$ 457,187

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Change In Net Unrealized Gains/(Losses) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Gross unrealized gains (losses)	$ 13,767		$ 221
Deferred income tax	4,818		183
Change in net unrealized gains (losses) on investments, net of tax	8,949	[1]	38	[1]
Fixed maturities
Gross unrealized gains (losses)	9,128		(3,640)
Equity Securities
Gross unrealized gains (losses)	$ 4,639		$ 3,861

[1] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 9,421 $ 183 Reclassification adjustment for net realized gains (losses) included in net income (638 ) (123 ) Reclassification adjustment for other-than-temporary impairment losses recognized in net income 166 (22 ) Change in net unrealized gains (losses) on investments, net of tax $ 8,949 $ 38

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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Income Taxes [Line Items]
Undistributed earnings of non-U.S. subsidiaries	$ 72,300,000
Taxes payable on undistributed earnings	1,500,000
Income tax (benefit) expense	3,281,000	(4,493,000)
Effective income tax rate	29.30%	36.30%
Deferred Tax Assets: State and Local	500,000		200,000
State and local net operating loss carry-forwards	$ 200,000		$ 200,000
United Kingdom
Income Taxes [Line Items]
Foreign effective income tax rate	35.00%
Corporate tax rate	26.00%
United Kingdom | Syndicate 1221 | Maximum
Income Taxes [Line Items]
Percentage of premiums	50.00%
United Kingdom | Syndicate 1221 | Minimum
Income Taxes [Line Items]
Foreign effective income tax rate	35.00%
United Kingdom | Expected Future Tax Rate
Income Taxes [Line Items]
Corporate tax rate	24.00%
Net investment income
Income Taxes [Line Items]
Effective income tax rate	25.20%	28.50%
State and Local Jurisdiction | Maximum
Income Taxes [Line Items]
State and local tax carry-forwards expiration year	2031
State and Local Jurisdiction | Minimum
Income Taxes [Line Items]
State and local tax carry-forwards expiration year	2024

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Segment Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Segment Reporting Information [Line Items]
Maximum combined ratio indicating underwriting profit	100.00%
Minimum combined ratio indicating underwriting loss	100.00%
Net earned premiums	$ 183,119	$ 152,478
Navigators Insurance Company
Segment Reporting Information [Line Items]
Percentage of Navigators Specialty Insurance Company reinsured by Navigators Insurance Company	100.00%
Insurance Companies
Segment Reporting Information [Line Items]
Net earned premiums	131,548	98,820
Insurance Companies | UK Branch
Segment Reporting Information [Line Items]
Net earned premiums	$ 21,000	$ 17,400

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Credit Facility - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		1 Months Ended
	Mar. 31, 2012	Mar. 31, 2012 Lloyd's Operations Syndicate 1221	Apr. 01, 2011 Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility			$ 165
Issuance of new letters of credit, expiry date			Dec. 31, 2012
Aggregate face amount of letters of credit outstanding		$ 150.7
Line of credit facility, covenant terms	This credit facility contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. The credit facility also provides for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by the Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, or a change in control of the Company.
Line of credit facility, covenant compliance	The Company was in compliance with all covenants under the credit facility as of March 31, 2012.

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Summary Of Activity Related to OTTI Losses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 Investment	Mar. 31, 2011 Investment
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of Securities	3	2
Total other-than-temporary impairment losses	$ 198	$ 263
Portion of loss recognized in other comprehensive income (before tax)	44	22
Net other-than-temporary impairment losses recognized in earnings	154	241
Residential Mortgage Backed Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of Securities	1	1
Total other-than-temporary impairment losses	55	33
Portion of loss recognized in other comprehensive income (before tax)	44	22
Net other-than-temporary impairment losses recognized in earnings	11	11
Equity Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of Securities	2	1
Total other-than-temporary impairment losses	143	230
Net other-than-temporary impairment losses recognized in earnings	$ 143	$ 230

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Scheduled Maturity Dates For Fixed Maturity Securities By Number Of Years Until Maturity (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fair Value
Due in one year or less	$ 46,615
Due after one year through five years	627,418
Due after five years through ten years	385,720
Due after ten years	216,631
Mortgage- and asset-backed securities	667,179
Total	1,943,563	1,888,069
Amortized Cost
Due in one year or less	46,244
Due after one year through five years	611,661
Due after five years through ten years	363,151
Due after ten years	203,101
Mortgage- and asset-backed securities	638,919
Total	$ 1,863,076	$ 1,816,710

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Realized Gains And Losses Excluding Net Other-Than-Temporary Impairment Losses Recognized in Earnings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Gain (Loss) on Investments [Line Items]
Net realized gains (losses)	$ 1,842	$ (1,389)
Fixed maturities
Gain (Loss) on Investments [Line Items]
Gains	3,142	2,867
Losses	(1,300)	(4,256)
Net realized gains (losses)	$ 1,842	$ (1,389)

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Accounting Policies

3 Months Ended

Mar. 31, 2012

Accounting Policies

Note 1. Accounting Policies

The accompanying interim consolidated financial statements are unaudited and reflect all adjustments which, in the opinion of management, are necessary to fairly present the results of The Navigators Group, Inc. and its subsidiaries for the interim periods presented on the basis of United States generally accepted accounting principles (“GAAP” or “U.S. GAAP”). All such adjustments are of a normal recurring nature. All significant intercompany transactions and balances have been eliminated. 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 term “the Company” as used herein is used to mean The Navigators Group, Inc. and its subsidiaries, unless the context otherwise requires. The term “Parent” or “Parent Company” are used to mean The Navigators Group, Inc. without its subsidiaries. These financial statements should be read in conjunction with the consolidated financial statements and notes contained in the Company’s 2011 Annual Report on Form 10-K. Certain amounts for the prior year have been reclassified to conform to the current year’s presentation.

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Summary Of Cumulative Amounts Related To Credit Loss Portion Of OTTI Losses On Debt Securities (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Beginning balance	$ 3,321	$ 2,228
Additions for credit loss impairments recognized in the current period on securities not previously impaired
Additions for credit loss impairments recognized in the current period on securities previously impaired	11	11
Reductions for credit loss impairments previously recognized on securities sold during the period
Ending balance	$ 3,332	$ 2,239

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Lists of 20 Largest Reinsurers Measured by Reinsurance Recoverable (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Dec. 31, 2011
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	$ 172,216		$ 164,162
Reinsurance Recoverables Paid/Unpaid Losses	908,414
Reinsurance Recoverables Total	1,080,630
Collateral Held	198,886	[1]
Rating	AA
Munich Reinsurance America Inc.
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	10,301
Reinsurance Recoverables Paid/Unpaid Losses	82,421
Reinsurance Recoverables Total	92,722
Collateral Held	15	[1]
Munich Reinsurance America Inc. | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Munich Reinsurance America Inc. | S&P
Ceded Credit Risk [Line Items]
Rating	AA-
Everest Reinsurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	14,229
Reinsurance Recoverables Paid/Unpaid Losses	77,070
Reinsurance Recoverables Total	91,299
Collateral Held	6,875	[1]
Everest Reinsurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Everest Reinsurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Swiss Reinsurance America Corporation
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	5,248
Reinsurance Recoverables Paid/Unpaid Losses	86,241
Reinsurance Recoverables Total	91,489
Collateral Held	5,984	[1]
Swiss Reinsurance America Corporation | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Swiss Reinsurance America Corporation | S&P
Ceded Credit Risk [Line Items]
Rating	AA-
Transatlantic Reinsurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	14,335
Reinsurance Recoverables Paid/Unpaid Losses	74,038
Reinsurance Recoverables Total	88,373
Collateral Held	7,103	[1]
Transatlantic Reinsurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A
Transatlantic Reinsurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	A+
National Indemnity Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	22,240
Reinsurance Recoverables Paid/Unpaid Losses	38,064
Reinsurance Recoverables Total	60,304
Collateral Held	12,718	[1]
National Indemnity Company | AMB
Ceded Credit Risk [Line Items]
Rating	A++
National Indemnity Company | S&P
Ceded Credit Risk [Line Items]
Rating	AA+
Partner Reinsurance Europe
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	6,883
Reinsurance Recoverables Paid/Unpaid Losses	31,065
Reinsurance Recoverables Total	37,948
Collateral Held	20,944	[1]
Partner Reinsurance Europe | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Partner Reinsurance Europe | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Lloyd's Syndicate #2003
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	6,344
Reinsurance Recoverables Paid/Unpaid Losses	32,108
Reinsurance Recoverables Total	38,452
Collateral Held	7,052	[1]
Lloyd's Syndicate #2003 | AMB
Ceded Credit Risk [Line Items]
Rating	A
Lloyd's Syndicate #2003 | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Berkley Insurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	1,658
Reinsurance Recoverables Paid/Unpaid Losses	29,647
Reinsurance Recoverables Total	31,305
Collateral Held	423	[1]
Berkley Insurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Berkley Insurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Allied World Reinsurance
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	6,934
Reinsurance Recoverables Paid/Unpaid Losses	21,672
Reinsurance Recoverables Total	28,606
Collateral Held	2,776	[1]
Allied World Reinsurance | AMB
Ceded Credit Risk [Line Items]
Rating	A
Allied World Reinsurance | S&P
Ceded Credit Risk [Line Items]
Rating	A
General Reinsurance Corporation
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	743
Reinsurance Recoverables Paid/Unpaid Losses	25,836
Reinsurance Recoverables Total	26,579
Collateral Held	3,708	[1]
General Reinsurance Corporation | AMB
Ceded Credit Risk [Line Items]
Rating	A++
General Reinsurance Corporation | S&P
Ceded Credit Risk [Line Items]
Rating	AA+
Scor Holding (Switzerland) AG
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	1,696
Reinsurance Recoverables Paid/Unpaid Losses	24,742
Reinsurance Recoverables Total	26,438
Collateral Held	8,527	[1]
Scor Holding (Switzerland) AG | AMB
Ceded Credit Risk [Line Items]
Rating	A
Scor Holding (Switzerland) AG | S&P
Ceded Credit Risk [Line Items]
Rating	A
Ace Property and Casualty Insurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	1,155
Reinsurance Recoverables Paid/Unpaid Losses	21,533
Reinsurance Recoverables Total	22,688
Ace Property and Casualty Insurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Ace Property and Casualty Insurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	AA-
Sirius America Insurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	114
Reinsurance Recoverables Paid/Unpaid Losses	22,373
Reinsurance Recoverables Total	22,487
Collateral Held	279	[1]
Sirius America Insurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A
Sirius America Insurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	A-
Tower Insurance Company
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	8,202
Reinsurance Recoverables Paid/Unpaid Losses	13,006
Reinsurance Recoverables Total	21,208
Collateral Held	3,154	[1]
Tower Insurance Company | AMB
Ceded Credit Risk [Line Items]
Rating	A-
Tower Insurance Company | S&P
Ceded Credit Risk [Line Items]
Rating	NR
Platinum Underwriters Re
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	673
Reinsurance Recoverables Paid/Unpaid Losses	20,106
Reinsurance Recoverables Total	20,779
Collateral Held	2,305	[1]
Platinum Underwriters Re | AMB
Ceded Credit Risk [Line Items]
Rating	A
Platinum Underwriters Re | S&P
Ceded Credit Risk [Line Items]
Rating	A-
Validus Reinsurance Ltd
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	2,654
Reinsurance Recoverables Paid/Unpaid Losses	19,364
Reinsurance Recoverables Total	22,018
Collateral Held	12,075	[1]
Validus Reinsurance Ltd | AMB
Ceded Credit Risk [Line Items]
Rating	A
Validus Reinsurance Ltd | S&P
Ceded Credit Risk [Line Items]
Rating	A-
Munchener Ruckversicherungs-Gesellschaft
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	520
Reinsurance Recoverables Paid/Unpaid Losses	19,913
Reinsurance Recoverables Total	20,433
Collateral Held	6,716	[1]
Munchener Ruckversicherungs-Gesellschaft | AMB
Ceded Credit Risk [Line Items]
Rating	A+
Munchener Ruckversicherungs-Gesellschaft | S&P
Ceded Credit Risk [Line Items]
Rating	AA-
AXIS Re Europe
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	4,687
Reinsurance Recoverables Paid/Unpaid Losses	13,835
Reinsurance Recoverables Total	18,522
Collateral Held	5,246	[1]
AXIS Re Europe | AMB
Ceded Credit Risk [Line Items]
Rating	A
AXIS Re Europe | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Lloyd Syndicate #4000
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	2,000
Reinsurance Recoverables Paid/Unpaid Losses	14,172
Reinsurance Recoverables Total	16,172
Collateral Held	1,828	[1]
Lloyd Syndicate #4000 | AMB
Ceded Credit Risk [Line Items]
Rating	A
Lloyd Syndicate #4000 | S&P
Ceded Credit Risk [Line Items]
Rating	A+
Scor Global P&C SE
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	7,455
Reinsurance Recoverables Paid/Unpaid Losses	8,381
Reinsurance Recoverables Total	15,836
Collateral Held	3,799	[1]
Scor Global P&C SE | AMB
Ceded Credit Risk [Line Items]
Rating	A
Scor Global P&C SE | S&P
Ceded Credit Risk [Line Items]
Rating	A
Insurance Companies
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	118,071
Reinsurance Recoverables Paid/Unpaid Losses	675,587
Reinsurance Recoverables Total	793,658
Collateral Held	111,527	[1]
All Others
Ceded Credit Risk [Line Items]
Reinsurance Recoverables Unearned Premium	54,145
Reinsurance Recoverables Paid/Unpaid Losses	232,827
Reinsurance Recoverables Total	286,972
Collateral Held	$ 87,359	[1]

[1] Collateral includes letter of credit balances payable and other balances held by the Company's Insurance Companies and Lloyd's Operations.

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Reinsurance Ceded - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 Entity	Mar. 31, 2011
Reinsurance Recoverable for Insurance Companies by Product Segment [Line Items]
Ceded premiums earned	$ 91.7	$ 96.0
Ceded losses incurred	$ 70.7	$ 74.7
Percentage of reinsurance recoverable of 20 largest reinsurers	73.40%
Number of largest reinsurers	20

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Contractual Maturity By Number Of Years Until Maturity for Fixed Maturity Securities With Gross Unrealized Loss (Detail) (Fixed maturities, USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	$ 4,072	$ 10,782
Percent of Total Gross Unrealized Loss	100.00%
Fair Value Amount	313,550	305,121
Percent of Total Fair Value	100.00%
Due in one year or less
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	102
Percent of Total Gross Unrealized Loss	3.00%
Fair Value Amount	12,586
Percent of Total Fair Value	4.00%
Due after one year through five years
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	938
Percent of Total Gross Unrealized Loss	23.00%
Fair Value Amount	183,891
Percent of Total Fair Value	58.00%
Due after five years through ten years
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	694
Percent of Total Gross Unrealized Loss	17.00%
Fair Value Amount	52,004
Percent of Total Fair Value	17.00%
Due After Ten Years
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	201
Percent of Total Gross Unrealized Loss	5.00%
Fair Value Amount	26,771
Percent of Total Fair Value	9.00%
Mortgage- and asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Gross Unrealized Loss Amount	2,137
Percent of Total Gross Unrealized Loss	52.00%
Fair Value Amount	$ 38,298
Percent of Total Fair Value	12.00%

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Stock-Based Compensation - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2012
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options expiration term (in years)	10 years
Options and 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
Options and 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
Non Performance Based Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	5 years
Vesting Percentage of share in year three	33.33%
Vesting Percentage of share in year four	33.33%
Vesting Percentage of share in year five	33.33%
Performance Based Shares Issued in 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	3 years
Percentage of shares vesting over the period	50.00%
Percentage of remaining shares vesting over the period dependent on compound annual growth book value per share immediately prior to vesting date	50.00%
Performance Based Shares Issued in 2011 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting range	0.00%
Performance Based Shares Issued in 2011 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting range	150.00%
Performance Based Shares Issued Prior to 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based payment award, award vesting period	5 years
Vesting Percentage of share in year three	33.33%
Vesting Percentage of share in year four	33.33%
Vesting Percentage of share in year five	33.33%
Performance Based Shares Issued Prior to 2011 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting range	0.00%
Performance Based Shares Issued Prior to 2011 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting range	150.00%

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Amounts Charged To Expense For Stock-based Compensation (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation	$ 1,246		$ 1,067
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation	1,212		948
Directors restricted stock grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation	60	[1]	60	[1]
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation	(26)		55
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation			$ 4	[2]

[1] Relates to non-employee directors serving on the Parent Company's Board of Directors, all of whom have been elected by the Company's shareholders, as well as non-employee directors serving on NUAL's Board of Directors.

[2] All outstanding stock appreciation rights were exercised during 2011. The Company will no longer issue awards from the Stock Appreciation Rights Plan as a result of the 2005 Amended and Restated Stock Incentive Plan.

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating activities:
Net income (loss)	$ 7,904	$ (7,893)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation & amortization	1,054	976
Deferred income taxes	(6,217)	(1,253)
Net realized (gains) losses	(1,842)	1,389
Net other-than-temporary losses recognized in earnings	154	241
Changes in assets and liabilities:
Reinsurance recoverable on paid and unpaid losses and loss adjustment expenses	(16,397)	(21,796)
Reserves for losses and loss adjustment expenses	30,326	45,092
Prepaid reinsurance premiums	(8,054)	(6,483)
Unearned premiums	68,705	47,076
Premiums receivable	(90,071)	(62,762)
Deferred policy acquisition costs	(6,017)	(8,666)
Accrued investment income	(36)	(460)
Reinsurance balances payable	21,965	25,720
Current income taxes	7,154	(3,240)
Other	7,743	5,351
Net cash provided by (used in) operating activities	16,371	13,292
Fixed maturities
Redemptions and maturities	47,523	56,672
Sales	273,529	42,106
Purchases	(371,071)	(67,478)
Equity securities
Sales
Purchases	(2,055)	(24)
Change in payable for securities	35,881	(8,378)
Net change in short-term investments	(80,757)	(14,713)
Purchase of property and equipment	(1,586)	(1,326)
Net cash provided by (used in) investing activities	(98,536)	6,859
Financing activities:
Purchase of treasury stock		(13,052)
Proceeds of stock issued from employee stock purchase plan	313	124
Proceeds of stock issued from exercise of stock options		293
Net cash provided by (used in) financing activities	313	(12,635)
Increase (decrease) in cash	(81,852)	7,516
Cash at beginning of year	127,360	31,768
Cash at end of period	45,508	39,284
Supplemental cash information:
Income taxes paid, net	1,519	476
Interest paid
Issuance of stock to directors	$ 242	$ 210

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Lloyd's Syndicate 1221 - Additional Information (Detail) (Lloyd's Operations, Syndicate 1221) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 USD ($)	Mar. 31, 2012 GBP (£)	Mar. 31, 2011 USD ($)	Mar. 31, 2011 GBP (£)
Supplementary Insurance Information, by Segment [Line Items]
Syndicate 1221's stamp capacity	$ 294	£ 184	$ 280	£ 175
Percentage control of stamp capacity	100.00%	100.00%	100.00%	100.00%
Letters of credit	$ 150.7

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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, unless otherwise specified	Mar. 31, 2012 Investment	Dec. 31, 2011 Investment
Fixed maturities
Gain (Loss) on Investments [Line Items]
Number of Securities	151	183
Fair Value	$ 313,550	$ 305,121
Gross Unrealized Loss	4,072	10,782
Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds
Gain (Loss) on Investments [Line Items]
Number of Securities	30	9
Fair Value	180,154	65,470
Gross Unrealized Loss	856	383
Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	28	7
Fair Value	173,094	58,587
Gross Unrealized Loss	755	98
Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	2	2
Fair Value	7,060	6,883
Gross Unrealized Loss	101	285
Fixed maturities | States, municipalities and political subdivisions
Gain (Loss) on Investments [Line Items]
Number of Securities	11	13
Fair Value	10,354	8,530
Gross Unrealized Loss	156	108
Fixed maturities | States, municipalities and political subdivisions | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	6	7
Fair Value	6,731	5,894
Gross Unrealized Loss	99	72
Fixed maturities | States, municipalities and political subdivisions | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	2	1
Fair Value	1,906	216
Gross Unrealized Loss	34	1
Fixed maturities | States, municipalities and political subdivisions | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	3	5
Fair Value	1,717	2,420
Gross Unrealized Loss	23	35
Fixed maturities | Agency mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Number of Securities	4	3
Fair Value	7,368	5,087
Gross Unrealized Loss	7	3
Fixed maturities | Agency mortgage-backed securities | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	4	3
Fair Value	7,368	5,087
Gross Unrealized Loss	7	3
Fixed maturities | Residential Mortgage Backed Securities
Gain (Loss) on Investments [Line Items]
Number of Securities	55	60
Fair Value	15,101	22,671
Gross Unrealized Loss	2,009	2,848
Fixed maturities | Residential Mortgage Backed Securities | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	3	6
Fair Value	787	6,672
Gross Unrealized Loss	100	184
Fixed maturities | Residential Mortgage Backed Securities | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	5	7
Fair Value	2,534	5,250
Gross Unrealized Loss	101	313
Fixed maturities | Residential Mortgage Backed Securities | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	47	47
Fair Value	11,780	10,749
Gross Unrealized Loss	1,808	2,351
Fixed maturities | Asset-backed securities
Gain (Loss) on Investments [Line Items]
Number of Securities	5	8
Fair Value	5,293	11,580
Gross Unrealized Loss	45	75
Fixed maturities | Asset-backed securities | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities		2
Fair Value		4,933
Gross Unrealized Loss		12
Fixed maturities | Asset-backed securities | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	4	5
Fair Value	5,291	6,645
Gross Unrealized Loss	45	63
Fixed maturities | Asset-backed securities | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	1	1
Fair Value	2	2
Fixed maturities | Commercial mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Number of Securities	11	12
Fair Value	10,536	13,808
Gross Unrealized Loss	76	593
Fixed maturities | Commercial mortgage-backed securities | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	7	6
Fair Value	9,311	5,465
Gross Unrealized Loss	45	29
Fixed maturities | Commercial mortgage-backed securities | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	2	3
Fair Value	185	6,840
Gross Unrealized Loss	6	550
Fixed maturities | Commercial mortgage-backed securities | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	2	3
Fair Value	1,040	1,503
Gross Unrealized Loss	25	14
Fixed maturities | Corporate bonds
Gain (Loss) on Investments [Line Items]
Number of Securities	35	78
Fair Value	84,744	177,975
Gross Unrealized Loss	923	6,772
Fixed maturities | Corporate bonds | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	9	52
Fair Value	37,306	135,516
Gross Unrealized Loss	138	4,539
Fixed maturities | Corporate bonds | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	20	18
Fair Value	39,538	27,561
Gross Unrealized Loss	575	1,457
Fixed maturities | Corporate bonds | > 12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	6	8
Fair Value	7,900	14,898
Gross Unrealized Loss	210	776
Common stock
Gain (Loss) on Investments [Line Items]
Number of Securities	3	5
Fair Value	5,294	4,949
Gross Unrealized Loss	342	958
Common stock | 0-6 months
Gain (Loss) on Investments [Line Items]
Number of Securities	1	4
Fair Value	2,032	3,320
Gross Unrealized Loss	15	587
Common stock | 7-12 months
Gain (Loss) on Investments [Line Items]
Number of Securities	2	1
Fair Value	3,262	1,629
Gross Unrealized Loss	$ 327	$ 371

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CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Investments and cash:
Fixed maturities, available-for-sale, at fair value (amortized cost: 2012, $1,863,076; 2011, $1,816,710)	$ 1,943,563	$ 1,888,069
Equity securities, available-for-sale, at fair value (cost: 2012, $75,479; 2011, $73,567)	102,400	95,849
Short-term investments, at cost which approximates fair value	202,977	122,220
Cash	45,508	127,360
Total investments and cash	2,294,448	2,233,498
Premiums receivable	344,397	255,725
Prepaid reinsurance premiums	172,216	164,162
Reinsurance recoverable on paid losses	51,694	43,791
Reinsurance recoverable on unpaid losses and loss adjustment expenses	856,720	845,445
Deferred policy acquisition costs	70,000	63,984
Accrued investment income	14,528	14,492
Goodwill and other intangible assets	7,009	6,869
Current income tax receivable, net	8,059	15,391
Other assets	28,456	26,650
Total assets	3,847,527	3,670,007
Liabilities:
Reserves for losses and loss adjustment expenses	2,093,643	2,082,679
Unearned premiums	601,333	532,628
Reinsurance balances payable	130,664	108,699
Senior Notes	114,312	114,276
Deferred income tax, net	2,706	6,291
Accounts payable and other liabilities	86,652	21,999
Total liabilities	3,029,310	2,866,572
Stockholders' equity:
Preferred stock, $.10 par value, authorized 1,000,000 shares, none issued
Common stock, $.10 par value, authorized 50,000,000 shares, issued 17,513,557 shares for 2012 and 17,467,615 shares for 2011	1,750	1,746
Additional paid-in capital	323,030	322,133
Treasury stock, at cost (3,511,380 shares for 2012 and 2011)	(155,801)	(155,801)
Retained earnings	573,013	565,109
Accumulated other comprehensive income	76,225	70,248
Total stockholders' equity	818,217	803,435
Total liabilities and stockholders' equity	$ 3,847,527	$ 3,670,007

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Net Investment Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment Income	$ 16,670	$ 18,242
Investment expenses	(5,412)	(858)
Net investment income	11,258	17,384
Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment Income	15,411	17,192
Equity Securities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment Income	947	783
Short-term investments
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Investment Income	$ 312	$ 267

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Deferred tax, change in net unrealized gains (losses) on investments	$ 4,818		$ 183
Deferred tax, change in foreign currency translation gains (losses)	1,399		363
Disclosure of reclassification amount, net of tax:
Unrealized gains (losses) on investments arising during period	9,421		183
Reclassification adjustment for net realized gains (losses) included in net income	(638)		(123)
Reclassification adjustment for other-than-temporary impairment losses recognized in net income	166		(22)
Change in net unrealized gains (losses) on investments, net of tax	$ 8,949	[1]	$ 38	[1]

[1] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 9,421 $ 183 Reclassification adjustment for net realized gains (losses) included in net income (638 ) (123 ) Reclassification adjustment for other-than-temporary impairment losses recognized in net income 166 (22 ) Change in net unrealized gains (losses) on investments, net of tax $ 8,949 $ 38

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Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended		1 Months Ended		1 Months Ended	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Oct. 25, 2011 Court Proceeding	Dec. 02, 2011 Court Proceeding	Dec. 02, 2011 Pending or Threatened Litigation	Mar. 31, 2012 Settlement Agreement
Loss Contingencies [Line Items]
Statutory interest rate			9.00%
Partial Summary Judgment Order				$ 4,700,000
Interest expense accrual	5,412,000	858,000			4,700,000	4,500,000
Settlement amount						$ 9,200,000
Settlement agreement, effective date						Apr. 19, 2012

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2012

Amounts Charged to Expense for Stock-based Compensation

The amounts charged to expense for stock-based compensation for the three months ended March 31, 2012 and 2011 are presented in the following table:

	Three Months Ended March 31,
In thousands	2012			2011
Restricted stock units	$	1,212		$	948
Directors restricted stock grants (1)		60			60
Employee stock purchase plan		(26	)		55
Stock appreciation rights (2)		—			4
Stock options		—			—
Total stock-based compensation	$	1,246		$	1,067

(1) Relates to non-employee directors serving on the Parent Company’s Board of Directors, all of whom have been elected by the Company’s shareholders, as well as non-employee directors serving on NUAL’s Board of Directors.

(2) All outstanding stock appreciation rights were exercised during 2011. The Company will no longer issue awards from the Stock Appreciation Rights Plan as a result of the 2005 Amended and Restated Stock Incentive Plan.

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Cash And Investments Including Other-Than-Temporarily Impaired ("OTTI") Securities Recognized within Other Comprehensive Income ("OCI") (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Gain (Loss) on Investments [Line Items]
Total investments and cash	$ 2,294,448	$ 2,233,498
Gross Unrealized Gains	111,822	105,381
Gross Unrealized Losses	(4,414)	(11,740)
Amortized Cost	2,187,040	2,139,857
OTTI Recognized in OCI	(1,037)	(1,682)
Fixed maturities
Gain (Loss) on Investments [Line Items]
Total investments and cash	1,943,563	1,888,069
Gross Unrealized Gains	84,559	82,141
Gross Unrealized Losses	(4,072)	(10,782)
Amortized Cost	1,863,076	1,816,710
OTTI Recognized in OCI	(1,037)	(1,682)
Fixed maturities | U.S. Government Treasury bonds, agency bonds and foreign government bonds
Gain (Loss) on Investments [Line Items]
Total investments and cash	418,876	336,070
Gross Unrealized Gains	8,032	8,979
Gross Unrealized Losses	(856)	(383)
Amortized Cost	411,700	327,474
Fixed maturities | States, municipalities and political subdivisions
Gain (Loss) on Investments [Line Items]
Total investments and cash	398,399	410,836
Gross Unrealized Gains	28,185	28,887
Gross Unrealized Losses	(156)	(108)
Amortized Cost	370,370	382,057
Fixed maturities | Agency mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Total investments and cash	385,239	395,860
Gross Unrealized Gains	16,240	17,321
Gross Unrealized Losses	(7)	(3)
Amortized Cost	369,006	378,542
Fixed maturities | Residential Mortgage Backed Securities
Gain (Loss) on Investments [Line Items]
Total investments and cash	20,254	23,148
Gross Unrealized Gains	35	8
Gross Unrealized Losses	(2,009)	(2,848)
Amortized Cost	22,228	25,988
OTTI Recognized in OCI	(1,037)	(1,682)
Fixed maturities | Asset-backed securities
Gain (Loss) on Investments [Line Items]
Total investments and cash	49,077	48,934
Gross Unrealized Gains	874	695
Gross Unrealized Losses	(45)	(75)
Amortized Cost	48,248	48,314
Fixed maturities | Commercial mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Total investments and cash	212,609	216,034
Gross Unrealized Gains	13,248	10,508
Gross Unrealized Losses	(76)	(593)
Amortized Cost	199,437	206,119
Fixed maturities | Mortgage-backed and asset-backed securities
Gain (Loss) on Investments [Line Items]
Total investments and cash	667,179	683,976
Gross Unrealized Gains	30,397	28,532
Gross Unrealized Losses	(2,137)	(3,519)
Amortized Cost	638,919	658,963
OTTI Recognized in OCI	(1,037)	(1,682)
Fixed maturities | Corporate bonds
Gain (Loss) on Investments [Line Items]
Total investments and cash	459,109	457,187
Gross Unrealized Gains	17,945	15,743
Gross Unrealized Losses	(923)	(6,772)
Amortized Cost	442,087	448,216
Equity Securities | Common stock
Gain (Loss) on Investments [Line Items]
Total investments and cash	102,400	95,849
Gross Unrealized Gains	27,263	23,240
Gross Unrealized Losses	(342)	(958)
Amortized Cost	75,479	73,567
Short-term investments
Gain (Loss) on Investments [Line Items]
Total investments and cash	202,977	122,220
Amortized Cost	202,977	122,220
Cash
Gain (Loss) on Investments [Line Items]
Total investments and cash	45,508	127,360
Amortized Cost	$ 45,508	$ 127,360

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Recent Accounting Pronouncements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
New Accounting Pronouncement, Early Adoption [Line Items]
Decrease in capitalized acquisition costs resulting from adoption of ASU 2010-26	$ 0.9

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2011	$ 803,435	$ 1,746	$ 322,133	$ (155,801)	$ 565,109	$ 70,248
Beginning Balance (in shares) at Dec. 31, 2011		17,467,615		3,511,380
Net income	7,904				7,904
Changes in comprehensive income:
Change in net unrealized gain (loss) on investments	8,530					8,530
Change in net non-credit other-than-temporary impairment losses	419					419
Change in foreign currency translation gain (loss)	(2,972)					(2,972)
Comprehensive income (loss)	5,977					5,977
Shares issued under stock plan (in shares)		45,942
Shares issued under stock plan	(311)	4	(315)
Share-based compensation	1,212		1,212
Ending Balance at Mar. 31, 2012	$ 818,217	$ 1,750	$ 323,030	$ (155,801)	$ 573,013	$ 76,225
Ending Balance (in shares) at Mar. 31, 2012		17,513,557		3,511,380

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fixed maturities, available-for-sale, amortized cost	$ 1,863,076	$ 1,816,710
Equity securities, available-for-sale, cost	$ 75,479	$ 73,567
Preferred stock, par value	$ 0.10	$ 0.10
Preferred stock, authorized shares	1,000,000	1,000,000
Preferred stock, issued shares	0	0
Common stock, par value	$ 0.10	$ 0.10
Common stock, authorized shares	50,000,000	50,000,000
Common stock, issued shares	17,513,557	17,467,615
Treasury stock, shares	3,511,380	3,511,380

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2012

Commitments and Contingencies

Note 9. Commitments and Contingencies

In the ordinary course of conducting business, the Company’s 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 the 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. The Company accounts for such activity through the establishment of unpaid loss and loss adjustment reserves. The Company’s management believes that the 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 Company’s consolidated financial condition, results of operations or cash flows.

The Company’s subsidiaries are also from time to time 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, the Company believes it has valid defenses to these cases. The Company’s management expects that the ultimate liability, if any, with respect to future extra-contractual matters will not be material to its consolidated financial position, results of operations or cash flows. 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 the Company’s consolidated results of operations or cash flows in a particular fiscal quarter or year.

In October 2010, Equitas, represented by Resolute Management Services Limited (“Resolute”), commenced a lawsuit in the Supreme Court of the State of New York (the “Court Proceeding”) and separate arbitration proceedings (the “Arbitration” and collectively with the Court Proceeding, the “Resolute Proceedings”) against Navigators Management Company, Inc. (“NMC”) a wholly-owned subsidiary of the Company. The arbitration demand and complaint in the Resolute Proceedings allege that NMC failed to make timely payments to Resolute under certain reinsurance agreements in connection with subrogation recoveries received by NMC with respect to several catastrophe losses that occurred in the late 1980’s and early 1990’s.

On October 25, 2011, an order was issued in the Court Proceeding denying NMC’s motion for summary judgment and granting Resolute’s cross-motion for partial summary judgment (the “Partial Summary Judgment Order”). The Partial Summary Judgment Order found that NMC had breached its obligations under the reinsurance agreements at issue in the Court Proceeding and further found that Resolute was entitled to damages for unpaid interest at the statutory rate of 9%. On December 2, 2011, a Stipulation and Order was entered with the Court in favor of Resolute in the amount of $4.7 million with respect to the Partial Summary Judgment Order. Navigators disagreed with and appealed the Partial Summary Judgment Order. As a result of the entry of the Partial Summary Judgment Order on December 2, 2011, however, Navigators established an interest expense accrual of $4.7 million during the fourth quarter of 2011, pending the resolution of the appeal.

On March 9, 2012, the Arbitration Panel granted Resolute’s motion for summary judgment in the Arbitration and found that NMC breached its obligations under the reinsurance agreement and that Resolute was entitled to damages for unpaid interest at the New York statutory rate of 9%. The Arbitration Panel’s ruling is binding and non-appealable.

Navigators disagrees with the two summary judgment rulings in the Resolute Proceedings, but rather than continue to litigate these related matters and incur additional legal expenses, NMC entered into a settlement agreement with Resolute, effective as of April 19, 2012, and agreed to withdraw its appeal and fully and finally settle this dispute. Navigators has agreed to pay $9.2 million to Resolute as part of the settlement.

As a result of the settlement, Navigators recognized an additional interest expense accrual of $4.5 million during the first quarter of 2012.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2012	Apr. 25, 2012
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1
Trading Symbol	NAVG
Entity Registrant Name	Navigators Group Inc
Entity Central Index Key	0000793547
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		14,002,869

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Investments

3 Months Ended

Mar. 31, 2012

Investments

Note 10. Investments

The following tables set forth the Company’s cash and investments as of March 31, 2012 and December 31, 2011. The table below includes other-than-temporarily impaired (“OTTI”) securities recognized within other comprehensive income (“OCI”).

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	418,876	$	8,032	$	(856	)	$	411,700	$	—
States, municipalities and political subdivisions		398,399		28,185		(156	)		370,370		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		385,239		16,240		(7	)		369,006		—
Residential mortgage obligations		20,254		35		(2,009	)		22,228		(1,037	)
Asset-backed securities		49,077		874		(45	)		48,248		—
Commercial mortgage-backed securities		212,609		13,248		(76	)		199,437		—
Subtotal	$	667,179	$	30,397	$	(2,137	)	$	638,919	$	(1,037	)
Corporate bonds		459,109		17,945		(923	)		442,087		—
Total fixed maturities	$	1,943,563	$	84,559	$	(4,072	)	$	1,863,076	$	(1,037	)
Equity securities — common stocks		102,400		27,263		(342	)		75,479		—
Short-term investments		202,977		—		—			202,977		—
Cash		45,508		—		—			45,508		—
Total	$	2,294,448	$	111,822	$	(4,414	)	$	2,187,040	$	(1,037	)

	As of December 31, 2011
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	336,070	$	8,979	$	(383	)	$	327,474	$	—
States, municipalities and political subdivisions		410,836		28,887		(108	)		382,057		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		395,860		17,321		(3	)		378,542		—
Residential mortgage obligations		23,148		8		(2,848	)		25,988		(1,682	)
Asset-backed securities		48,934		695		(75	)		48,314		—
Commercial mortgage-backed securities		216,034		10,508		(593	)		206,119		—
Subtotal	$	683,976	$	28,532	$	(3,519	)	$	658,963	$	(1,682	)
Corporate bonds		457,187		15,743		(6,772	)		448,216		—
Total fixed maturities	$	1,888,069	$	82,141	$	(10,782	)	$	1,816,710	$	(1,682	)
Equity securities — common stocks		95,849		23,240		(958	)		73,567		—
Short-term investments		122,220		—		—			122,220		—
Cash		127,360		—		—			127,360
Total	$	2,233,498	$	105,381	$	(11,740	)	$	2,139,857	$	(1,682	)

The fair value of the 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. The Company does not have the intent to sell nor is it more likely than not that it will have to sell debt securities in unrealized loss positions that are not other-than-temporarily impaired before recovery. The Company may realize investment losses to the extent its liquidity needs require the disposition of fixed maturity securities in unfavorable interest rate, liquidity or credit spread environments. Significant changes in the factors the Company considers when evaluating investment for impairment losses could result in a significant change in impairment losses reported in the consolidated financial statements.

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity as of March 31, 2012 are shown in the following table:

	As of March 31, 2012
In thousands	Fair Value		Amortized Cost
Due in one year or less	$	46,615	$	46,244
Due after one year through five years		627,418		611,661
Due after five years through ten years		385,720		363,151
Due after ten years		216,631		203,101
Mortgage- and asset-backed securities		667,179		638,919
Total	$	1,943,563	$	1,863,076

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. Due to the periodic repayment of principal, the mortgage-backed and asset-backed securities are estimated to have an effective maturity of approximately 3.8 years.

The following table shows the amount and percentage of the Company’s fixed maturities and short-term investments at March 31, 2012 by S&P credit rating or, if an S&P rating is not available, the equivalent Moody’s Investor Services (“Moody’s”) rating. The table includes fixed maturities and short-term investments at fair value, and the total rating is the weighted average quality rating.

In thousands	Rating	Fair Value		Percent of Total
Rating description:
Extremely strong	AAA	$	316,690		16	%
Very strong	AA		1,076,193		56	%
Strong	A		411,864		21	%
Adequate	BBB		123,112		6	%
Speculative	BB & Below		11,833		1	%
Not rated	NR		3,871		0	%
Total	AA	$	1,943,563		100	%

The following table summarizes all securities in a gross unrealized loss position as of March 31, 2012 and December 31, 2011, showing the aggregate fair value and gross unrealized loss by the length of time those securities had continuously been in a gross unrealized loss position as well as the relevant number of securities.

	As of March 31, 2012						As of December 31, 2011
In thousands, except # of securities	Number of Securities		Fair Value		Gross Unrealized Loss		Number of Securities		Fair Value		Gross Unrealized Loss
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds
0-6 months		28	$	173,094	$	755		7	$	58,587	$	98
7-12 months		—		—		—		—		—		—
> 12 months		2		7,060		101		2		6,883		285
Subtotal		30	$	180,154	$	856		9	$	65,470	$	383
States, municipalities and political subdivisions
0-6 months		6	$	6,731	$	99		7	$	5,894	$	72
7-12 months		2		1,906		34		1		216		1
> 12 months		3		1,717		23		5		2,420		35
Subtotal		11	$	10,354	$	156		13	$	8,530	$	108
Agency mortgage-backed securities
0-6 months		4	$	7,368	$	7		3	$	5,087	$	3
7-12 months		—		—		—		—		—		—
> 12 months		—		—		—		—		—		—
Subtotal		4	$	7,368	$	7		3	$	5,087	$	3
Residential mortgage obligations
0-6 months		3	$	787	$	100		6	$	6,672	$	184
7-12 months		5		2,534		101		7		5,250		313
> 12 months		47		11,780		1,808		47		10,749		2,351
Subtotal		55	$	15,101	$	2,009		60	$	22,671	$	2,848
Asset-backed securities
0-6 months		—	$	—	$	—		2	$	4,933	$	12
7-12 months		4		5,291		45		5		6,645		63
> 12 months		1		2		—		1		2		—
Subtotal		5	$	5,293	$	45		8	$	11,580	$	75
Commercial mortgage-backed securities
0-6 months		7	$	9,311	$	45		6	$	5,465	$	29
7-12 months		2		185		6		3		6,840		550
> 12 months		2		1,040		25		3		1,503		14
Subtotal		11	$	10,536	$	76		12	$	13,808	$	593
Corporate bonds
0-6 months		9	$	37,306	$	138		52	$	135,516	$	4,539
7-12 months		20		39,538		575		18		27,561		1,457
> 12 months		6		7,900		210		8		14,898		776
Subtotal		35	$	84,744	$	923		78	$	177,975	$	6,772
Total fixed maturities		151	$	313,550	$	4,072		183	$	305,121	$	10,782
Equity securities-common stocks
0-6 months		1	$	2,032	$	15		4	$	3,320	$	587
7-12 months		2		3,262		327		1		1,629		371
> 12 months		—		—		—		—		—		—
Total equity securities		3	$	5,294	$	342		5	$	4,949	$	958

As of March 31, 2012 and December 31, 2011, the largest single unrealized loss by a non-government backed issuer in the investment portfolio was $0.3 million and $1.4 million, respectively.

The Company analyzes the unrealized losses quarterly to determine if any are other-than-temporary. The above unrealized losses have been determined to be temporary based on our analysis.

For debt securities, when assessing whether the amortized cost basis of the security will be recovered, the Company compares the present value of cash flows expected to be collected in relation to the current book value. Any shortfalls of the present value of the cash flows expected to be collected to the amortized cost basis is considered the credit loss portion of OTTI losses and is recognized in earnings. All non-credit losses are recognized as changes in OTTI losses within OCI.

To determine whether the unrealized loss on structured securities is other-than-temporary, the Company analyzes the projections provided by its investment managers with respect to an expected principal loss under a range of scenarios and utilizes the most likely outcomes. The analysis relies on actual collateral performance measures such as default rate, prepayment rate and loss severity. These assumptions are applied throughout the remaining term of the deal, incorporating the transaction structure and priority of payments, to generate loss adjusted cash flows. Results of the analysis will indicate whether the security ultimately incurs a loss or whether there is a material impact on yield due to either a projected loss or a change in cash flow timing. A break even default rate is also calculated. A comparison of the break even default rate to the actual default rate provides an indication of the level of cushion or coverage to the first dollar principal loss. The analysis applies the stated assumptions throughout the remaining term of the transaction to forecast cash flows, which are then applied through the transaction structure to determine whether there is a loss to the security. For securities in which a tranche loss is present, and the net present value of loss adjusted cash flows is less than book value, impairment is recognized. The output data also includes a number of additional metrics such as average life remaining, original and current credit support, over 60 day delinquency and security rating.

The significant inputs used to measure the amount of credit loss recognized in earnings were actual delinquency rates, default probability assumptions, severity assumptions and prepayment assumptions. Projected losses are a function of both loss severity and probability of default. Default probability and severity assumptions differ based on property type, vintage and the stress of the collateral. The Company does not intend to sell any of these securities and it is more likely than not that it will not be required to sell these securities before the recovery of the amortized cost basis.

For equity securities, in general, the Company focuses its attention on those securities with a fair value less than 80% of their cost for six or more consecutive months. If warranted as the result of conditions relating to a particular security, the Company will focus on a significant decline in fair value regardless of the time period involved. Factors considered in evaluating potential impairment include, but are not limited to, the current fair value as compared to cost of the security, the length of time the investment has been below cost and by how much the investment is below cost. If an equity security is deemed to be other-than-temporarily impaired, the cost is written down to fair value with the loss recognized in earnings.

For equity securities, the Company also considers its 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. For fixed maturity securities, the Company considers its intent to sell a security and whether it is more likely than not that the Company will be required to sell a security before the anticipated recovery as part of the process of evaluating whether a security’s unrealized loss represents an other-than-temporary decline. The Company’s ability to hold such securities is supported by sufficient cash flow from its operations and from maturities within its investment portfolio in order to meet its claims payment and other disbursement obligations arising from its 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.

The following table summarizes the gross unrealized investment losses as of March 31, 2012 by length of time where the fair value is less than 80% of amortized cost.

	Period for Which Fair Value is Less than 80% of Amortized Cost
In thousands	Less than 3 months		Longer than 3 months, less than 6 months		6 months or  longer, less than 12 months		12 months or longer			Total
Fixed maturities	$	—	$	—	$	—	$	(547	)	$	(547	)
Equity securities		—		—		—		—			—
Total	$	—	$	—	$	—	$	(547	)	$	(547	)

The table below summarizes the Company’s activity related to OTTI losses for the periods indicated:

	Three Months Ended March 31,
	2012				2011
In thousands, except # of securities	Number of Securities		Amount		Number of Securities		Amount
Total other-than-temporary impairment losses:
Corporate and other bonds		—	$	—		—	$	—
Commercial mortgage-backed securities		—		—		—		—
Residential mortgage-backed securities		1		55		1		33
Asset-backed securities		—		—		—		—
Equities		2		143		1		230
Total		3	$	198		2	$	263
Less: Portion of loss in accumulated other comprehensive income (loss):
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				44				22
Asset-backed securities				—				—
Equities				—				—
Total			$	44			$	22
Impairment losses recognized in earnings
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				11				11
Asset-backed securities				—				—
Equities				143				230
Total			$	154			$	241

The following table summarizes the cumulative amounts related to the Company’s credit loss portion of the OTTI losses on debt securities for the three months ended March 31, 2012 and 2011. The Company does not intend to sell and it is more likely than not that it will not be required to sell the securities prior to recovery of the amortized cost basis and for which the non-credit loss portion is included in other comprehensive income:

	Three Months Ended March 31,
In thousands	2012		2011
Beginning balance	$	3,321	$	2,228
Additions for credit loss impairments recognized in the current period on securities not previously impaired		—		—
Additions for credit loss impairments recognized in the current period on securities previously impaired		11		11
Reductions for credit loss impairments previously recognized on securities sold during the period		—		—
Ending balance	$	3,332	$	2,239

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity, with a gross unrealized loss as of March 31, 2012 is presented in the following table:

	As of March 31, 2012
	Gross Unrealized Losses					Fair Value
In thousands	Amount		Percent of Total			Amount		Percent of Total
Due in one year or less	$	102		3	%	$	12,586		4	%
Due after one year through five years		938		23	%		183,891		58	%
Due after five years through ten years		694		17	%		52,004		17	%
Due after ten years		201		5	%		26,771		9	%
Mortgage- and asset-backed securities		2,137		52	%		38,298		12	%
Total	$	4,072		100	%	$	313,550		100	%

The Company’s net investment income was derived from the following sources:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities	$	15,411		$	17,192
Equity securities		947			783
Short-term investments		312			267
Total investment income		16,670			18,242
Investment expenses		(5,412	)		(858	)
Net investment income	$	11,258		$	17,384

Investment expenses for the three months ended March 31, 2012 included $4.5 million of estimated interest expense related to a summary judgment order entered against the Company in Arbitration in its dispute with Resolute over whether interest was due on previously paid balances that were allegedly overdue under certain reinsurance agreements. Refer to Note 9, Commitments and Contingencies.

The change in net unrealized gains/(losses), inclusive of the change in the non credit portion of other-than-temporary impairment losses, consisted of:

	Three Months Ended March 31,
In thousands	2012		2011
Fixed maturities	$	9,128	$	(3,640	)
Equity securities		4,639		3,861
Gross unrealized gains (losses)		13,767		221
Deferred income tax		4,818		183
Change in net unrealized gains (losses), net	$	8,949	$	38

Realized gains/(losses), excluding net other-than-temporary impairment losses recognized in earnings, for the periods indicated were as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities:
Gains	$	3,142		$	2,867
Losses		(1,300	)		(4,256	)
Fixed maturities, net	$	1,842		$	(1,389	)
Equity securities:
Gains	$	—		$	—
Losses		—			—
Equity securities, net	$	—		$	—
Net realized gains (losses)	$	1,842		$	(1,389	)

The following tables present, for each of the fair value hierarchy levels as defined by the accounting guidance for fair value measurements, the Company’s fixed maturities and equity securities by asset class that are measured at fair value on a recurring basis as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	181,701	$	237,175	$	—	$	418,876
States, municipalities and political subdivisions		—		398,399		—		398,399
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		385,239		—		385,239
Residential mortgage obligations		—		20,254		—		20,254
Asset-backed securities		—		49,077		—		49,077
Commercial mortgage-backed securities		—		212,609		—		212,609
Subtotal	$	—	$	667,179	$	—	$	667,179
Corporate bonds		—		459,109		—		459,109
Total fixed maturities	$	181,701	$	1,761,862	$	—	$	1,943,563
Equity securities-common stocks		102,400		—		—		102,400
Total	$	284,101	$	1,761,862	$	—	$	2,045,963

	As of December 31, 2011
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	136,625	$	199,445	$	—	$	336,070
States, municipalities and political subdivisions		—		410,836		—		410,836
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		395,860		—		395,860
Residential mortgage obligations		—		23,148		—		23,148
Asset-backed securities		—		48,934		—		48,934
Commercial mortgage-backed securities		—		216,034		—		216,034
Subtotal	$	—	$	683,976	$	—	$	683,976
Corporate bonds		—		457,187		—		457,187
Total fixed maturities	$	136,625	$	1,751,444	$	—	$	1,888,069
Equity securities-common stocks		95,849		—		—		95,849
Total	$	232,474	$	1,751,444	$	—	$	1,983,918

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

Level 1 — Quoted prices for identical instruments in active markets. Examples are listed equity and fixed income securities traded on an exchange. Treasury securities would generally be considered level 1.

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 which are similar to other asset-backed or mortgage-backed securities observed in the market.

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 Company did not have any transfers between Level 1 and 2 for March 31, 2012 and December 31, 2011.

There were no significant judgments made in classifying instruments in the fair value hierarchy.

As of March 31, 2012, the Company did not have any Level 3 assets. Any pricing where the input is based solely on a broker price is deemed to be a Level 3 price. The following tables present a reconciliation of the beginning and ending balances for all investments measured at fair value using Level 3 inputs during the three months ended March 31, 2011:

	For The Three Months Ended March 31, 2011
In thousands	Beginning Balance		Realized Gains (Losses)		Unrealized Gains (Losses)			Purchases		Sales			Settlements		Transfers into Level 3		Transfers out of Level 3			Ending Balance
Assets:
Commercial Mortgage Obligations	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—
Total assets	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—

As of March 31, 2012 and December 31, 2011, fixed maturities with amortized values of $9.0 million and $10.2 million, respectively, were on deposit with various state insurance departments. In addition, at March 31, 2012, investments of $1.2 million were on deposit at a U.K. bank to comply with the regulatory requirements of the Financial Services Authority for Navigators Insurance Company’s U.K. Branch. In addition, at March 31, 2012 and December 31, 2011, $0.3 million of investments were pledged as security under a reinsurance treaty.

As of March 31, 2012 and December 31, 2011, the Company did not have a concentration of greater than 5% of invested assets in a single non-U.S. government-backed issuer.

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CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Gross written premiums	$ 343,149	$ 296,283
Revenues:
Net written premiums	243,045	193,076
Change in unearned premiums	(59,926)	(40,598)
Net earned premiums	183,119	152,478
Net investment income	11,258	17,384
Total other-than-temporary impairment losses	(198)	(263)
Portion of loss recognized in other comprehensive income (pretax)	44	22
Net other-than-temporary impairment losses recognized in earnings	(154)	(241)
Net realized gains (losses)	1,842	(1,389)
Other income (expense)	911	991
Total revenues	196,976	169,223
Expenses:
Net losses and loss adjustment expenses	117,985	116,788
Commission expenses	29,450	26,200
Other operating expenses	36,307	36,575
Interest expense	2,049	2,046
Total expenses	185,791	181,609
Income (loss) before income taxes	11,185	(12,386)
Income tax expense (benefit)	3,281	(4,493)
Net income (loss)	$ 7,904	$ (7,893)
Net income (loss) per common share:
Basic	$ 0.57	$ (0.50)
Diluted	$ 0.56	$ (0.50)
Average common shares outstanding:
Basic	13,979,442	15,738,693
Diluted	14,174,875	15,738,693

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Reinsurance Ceded

3 Months Ended

Mar. 31, 2012

Reinsurance Ceded

Note 4. Reinsurance Ceded

The Company’s ceded earned premiums were $91.7 million and $96.0 million for the three months ended March 31, 2012 and 2011, respectively. The Company’s ceded incurred losses were $70.7 million and $74.7 million for the three months ended March 31, 2012 and 2011, respectively.

The following table lists the Company’s 20 largest reinsurers measured by the amount of reinsurance recoverable for ceded losses and LAE and ceded unearned premium (constituting approximately 73.4% of the total recoverable), together with the reinsurance recoverable and collateral as of March 31, 2012, and the reinsurers’ ratings from the indicated rating agency:

	Reinsurance Recoverables
In thousands	Unearned Premium		Paid/Unpaid Losses		Total		Collateral Held  (1)		AMB		S&P
Munich Reinsurance America Inc.		10,301		82,421		92,722		15		A+		AA-
Everest Reinsurance Company		14,229		77,070		91,299		6,875		A+		A+
Swiss Reinsurance America Corporation		5,248		86,241		91,489		5,984		A+		AA-
Transatlantic Reinsurance Company		14,335		74,038		88,373		7,103		A		A+
National Indemnity Company		22,240		38,064		60,304		12,718		A++		AA+
Partner Reinsurance Europe		6,883		31,065		37,948		20,944		A+		A+
Lloyd’s Syndicate #2003		6,344		32,108		38,452		7,052		A		A+
Berkley Insurance Company		1,658		29,647		31,305		423		A+		A+
Allied World Reinsurance		6,934		21,672		28,606		2,776		A		A
General Reinsurance Corporation		743		25,836		26,579		3,708		A++		AA+
Scor Holding (Switzerland) AG		1,696		24,742		26,438		8,527		A		A
Ace Property and Casualty Insurance Company		1,155		21,533		22,688		—		A+		AA-
Sirius America Insurance Company		114		22,373		22,487		279		A		A-
Tower Insurance Company		8,202		13,006		21,208		3,154		A-		NR
Platinum Underwriters Re		673		20,106		20,779		2,305		A		A-
Validus Reinsurance Ltd.		2,654		19,364		22,018		12,075		A		A-
Munchener Ruckversicherungs-Gesellschaft		520		19,913		20,433		6,716		A+		AA-
AXIS Re Europe		4,687		13,835		18,522		5,246		A		A+
Lloyd’s Syndicate #4000		2,000		14,172		16,172		1,828		A		A+
Scor Global P&C SE		7,455		8,381		15,836		3,799		A		A
Top 20 Total	$	118,071	$	675,587	$	793,658	$	111,527
All Others		54,145		232,827		286,972		87,359
Total	$	172,216	$	908,414	$	1,080,630	$	198,886

(1) Collateral includes letter of credit balances payable and other balances held by the Company’s Insurance Companies and Lloyd’s Operations.

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Segment Information

3 Months Ended

Mar. 31, 2012

Segment Information

Note 3. Segment Information

The Company classifies its business into two underwriting segments consisting of the Insurance Companies segment (“Insurance Companies”) and the Lloyd’s Operations segment (“Lloyd’s Operations”), which are separately managed, and a Corporate segment (“Corporate”). Segment data for each of the two underwriting segments include allocations of the operating expenses of the wholly-owned underwriting management companies and the Parent Company’s operating expenses and related income tax amounts. The Corporate segment consists of the Parent Company’s investment income, interest expense and the related tax effect.

The Company evaluates the performance of each underwriting segment based on its underwriting and GAAP results. The Insurance Companies’ and the Lloyd’s Operations’ results are measured by taking into account net earned premiums, net losses and loss adjustment expenses (“LAE”), commission expenses, other operating expenses and other income (expense). Each segment maintains its own investments on which it earns income and realizes capital gains or losses. The Company’s underwriting performance is evaluated separately from the performance of its investment portfolios.

The Insurance Companies consist of Navigators Insurance Company, including its branch located in the United Kingdom (the “U.K. Branch”), and its wholly-owned subsidiary, Navigators Specialty Insurance Company (“Navigators Specialty”). They are primarily engaged in underwriting marine insurance and related lines of business, professional liability insurance and specialty lines of business including contractors general liability insurance, commercial umbrella and primary and excess casualty businesses. Navigators Specialty underwrites specialty and professional liability insurance on an excess and surplus lines basis. Navigators Specialty is 100% reinsured by Navigators Insurance Company.

The Lloyd’s Operations primarily underwrite marine and related lines of business along with offshore energy, professional liability insurance and construction coverages for onshore energy business at Lloyd’s through Syndicate 1221. The Company’s Lloyd’s Operations includes Navigators Underwriting Agency Ltd. (“NUAL”), a Lloyd’s underwriting agency which manages Syndicate 1221.

Navigators Management Company, Inc. (“NMC”) is a wholly-owned underwriting management company which produces, manages and underwrites insurance and reinsurance, and provides corporate services for the Company. The operating results for the underwriting management company are allocated to both the Insurance Companies and Lloyd’s Operations.

The Insurance Companies’ and the Lloyd’s Operations’ underwriting results are measured based on underwriting profit or loss and the related combined ratio, which are both non-GAAP measures of underwriting profitability. Underwriting profit or loss is calculated from net earned premiums, less the sum of net losses and LAE, commission expenses, other operating expenses and other income (expense). The combined ratio is derived by dividing the sum of net losses and LAE, commission expenses, other operating expenses and other 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.

Financial data by segment for the three months ended March 31, 2012 and 2011 was as follows:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	248,338		$	94,811		$	—		$	343,149
Net written premiums		181,250			61,795			—			243,045
Net earned premiums		131,548			51,571			—			183,119
Net losses and loss adjustment expenses		(91,177	)		(26,808	)		—			(117,985	)
Commission expenses		(19,301	)		(10,886	)		737			(29,450	)
Other operating expenses		(25,345	)		(10,962	)		—			(36,307	)
Other income (expense)		1,642			6			(737	)		911
Underwriting profit (loss)	$	(2,633	)	$	2,921		$	—		$	288
Net investment income		8,935			2,283			40			11,258
Net realized gains (losses)		1,875			(187	)		—			1,688
Interest expense		—			—			(2,049	)		(2,049	)
Income (loss) before income taxes	$	8,177		$	5,017		$	(2,009	)	$	11,185
Income tax expense (benefit)		2,258			1,726			(703	)		3,281
Net income (loss)	$	5,919		$	3,291		$	(1,306	)	$	7,904
Identifiable assets	$	2,899,369		$	907,760		$	40,398		$	3,847,527
Losses and loss adjustment expenses ratio		69.3	%		52.0	%					64.4	%
Commission expense ratio		14.7	%		21.1	%					16.1	%
Other operating expense ratio (2)		18.0	%		21.2	%					19.3	%
Combined ratio		102.0	%		94.3	%					99.8	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other operating expenses and Other income.

	Three Months Ended March 31, 2011
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	206,776		$	89,507		$	—		$	296,283
Net written premiums		130,740			62,336			—			193,076
Net earned premiums		98,820			53,658			—			152,478
Net losses and loss adjustment expenses		(74,797	)		(41,991	)		—			(116,788	)
Commission expenses		(12,340	)		(14,407	)		547			(26,200	)
Other operating expenses		(26,799	)		(9,776	)		—			(36,575	)
Other income (expense)		1,691			(153	)		(547	)		991
Underwriting profit (loss)	$	(13,425	)	$	(12,669	)	$	0		$	(26,094	)
Net investment income		14,983			2,255			146			17,384
Net realized gains (losses)		(245	)		(1,385	)		—			(1,630	)
Interest expense		—			—			(2,046	)		(2,046	)
Income (loss) before income taxes	$	1,313		$	(11,799	)	$	(1,900	)	$	(12,386	)
Income tax expense (benefit)		228			(4,056	)		(665	)		(4,493	)
Net income (loss)	$	1,085		$	(7,743	)	$	(1,235	)	$	(7,893	)
Identifiable assets	$	2,685,679		$	883,603		$	67,828		$	3,637,110
Losses and loss adjustment expenses ratio		75.7	%		78.3	%					76.6	%
Commission expense ratio		12.5	%		26.8	%					17.2	%
Other operating expense ratio (2)		25.4	%		18.5	%					23.3	%
Combined ratio		113.6	%		123.6	%					117.1	%

(1) - Includes Corporate segment intercompany eliminations.

(2) -Includes Other operating expenses and Other income.

The following tables provide additional financial data by segment for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	61,865	$	62,330	$	124,195
Property casualty		155,919		23,741		179,660
Professional liability		30,554		8,740		39,294
Total	$	248,338	$	94,811	$	343,149
Net written premiums:
Marine	$	42,865	$	48,525	$	91,390
Property casualty		114,532		8,888		123,420
Professional liability		23,853		4,382		28,235
Total	$	181,250	$	61,795	$	243,045
Net earned premiums:
Marine	$	35,275	$	34,609	$	69,884
Property casualty		74,368		13,157		87,525
Professional liability		21,905		3,805		25,710
Total	$	131,548	$	51,571	$	183,119

	Three Months Ended March 31, 2011
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	70,348	$	61,155	$	131,503
Property casualty		112,888		19,302		132,190
Professional liability		23,540		9,050		32,590
Total	$	206,776	$	89,507	$	296,283
Net written premiums:
Marine	$	54,218	$	49,671	$	103,889
Property casualty		62,907		8,386		71,293
Professional liability		13,615		4,279		17,894
Total	$	130,740	$	62,336	$	193,076
Net earned premiums:
Marine	$	40,559	$	36,978	$	77,537
Property casualty		42,935		11,894		54,829
Professional liability		15,326		4,786		20,112
Total	$	98,820	$	53,658	$	152,478

The Insurance Companies’ net earned premiums include $21.0 million and $17.4 million of net earned premiums from the U.K. Branch for the three months ended March 31, 2012 and 2011, respectively.

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Investments (Tables)

3 Months Ended

Mar. 31, 2012

Cash and Investments Including Other-Than-Temporarily Impaired ("OTTI") Securities Recognized within Other Comprehensive Income ("OCI")

The following tables set forth the Company’s cash and investments as of March 31, 2012 and December 31, 2011. The table below includes other-than-temporarily impaired (“OTTI”) securities recognized within other comprehensive income (“OCI”).

	As of March 31, 2012
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	418,876	$	8,032	$	(856	)	$	411,700	$	—
States, municipalities and political subdivisions		398,399		28,185		(156	)		370,370		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		385,239		16,240		(7	)		369,006		—
Residential mortgage obligations		20,254		35		(2,009	)		22,228		(1,037	)
Asset-backed securities		49,077		874		(45	)		48,248		—
Commercial mortgage-backed securities		212,609		13,248		(76	)		199,437		—
Subtotal	$	667,179	$	30,397	$	(2,137	)	$	638,919	$	(1,037	)
Corporate bonds		459,109		17,945		(923	)		442,087		—
Total fixed maturities	$	1,943,563	$	84,559	$	(4,072	)	$	1,863,076	$	(1,037	)
Equity securities — common stocks		102,400		27,263		(342	)		75,479		—
Short-term investments		202,977		—		—			202,977		—
Cash		45,508		—		—			45,508		—
Total	$	2,294,448	$	111,822	$	(4,414	)	$	2,187,040	$	(1,037	)

	As of December 31, 2011
In thousands	Fair Value		Gross Unrealized Gains		Gross Unrealized Losses			Amortized Cost		OTTI Recognized in OCI
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	336,070	$	8,979	$	(383	)	$	327,474	$	—
States, municipalities and political subdivisions		410,836		28,887		(108	)		382,057		—
Mortgage-backed and asset-backed securities:
Agency mortgage-backed securities		395,860		17,321		(3	)		378,542		—
Residential mortgage obligations		23,148		8		(2,848	)		25,988		(1,682	)
Asset-backed securities		48,934		695		(75	)		48,314		—
Commercial mortgage-backed securities		216,034		10,508		(593	)		206,119		—
Subtotal	$	683,976	$	28,532	$	(3,519	)	$	658,963	$	(1,682	)
Corporate bonds		457,187		15,743		(6,772	)		448,216		—
Total fixed maturities	$	1,888,069	$	82,141	$	(10,782	)	$	1,816,710	$	(1,682	)
Equity securities — common stocks		95,849		23,240		(958	)		73,567		—
Short-term investments		122,220		—		—			122,220		—
Cash		127,360		—		—			127,360
Total	$	2,233,498	$	105,381	$	(11,740	)	$	2,139,857	$	(1,682	)

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

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity as of March 31, 2012 are shown in the following table:

	As of March 31, 2012
In thousands	Fair Value		Amortized Cost
Due in one year or less	$	46,615	$	46,244
Due after one year through five years		627,418		611,661
Due after five years through ten years		385,720		363,151
Due after ten years		216,631		203,101
Mortgage- and asset-backed securities		667,179		638,919
Total	$	1,943,563	$	1,863,076

Amount and Percentage of Fixed Maturities and Short-term Investments

The following table shows the amount and percentage of the Company’s fixed maturities and short-term investments at March 31, 2012 by S&P credit rating or, if an S&P rating is not available, the equivalent Moody’s Investor Services (“Moody’s”) rating. The table includes fixed maturities and short-term investments at fair value, and the total rating is the weighted average quality rating.

In thousands	Rating	Fair Value		Percent of Total
Rating description:
Extremely strong	AAA	$	316,690		16	%
Very strong	AA		1,076,193		56	%
Strong	A		411,864		21	%
Adequate	BBB		123,112		6	%
Speculative	BB & Below		11,833		1	%
Not rated	NR		3,871		0	%
Total	AA	$	1,943,563		100	%

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

The following table summarizes all securities in a gross unrealized loss position as of March 31, 2012 and December 31, 2011, showing the aggregate fair value and gross unrealized loss by the length of time those securities had continuously been in a gross unrealized loss position as well as the relevant number of securities.

	As of March 31, 2012						As of December 31, 2011
In thousands, except # of securities	Number of Securities		Fair Value		Gross Unrealized Loss		Number of Securities		Fair Value		Gross Unrealized Loss
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds
0-6 months		28	$	173,094	$	755		7	$	58,587	$	98
7-12 months		—		—		—		—		—		—
> 12 months		2		7,060		101		2		6,883		285
Subtotal		30	$	180,154	$	856		9	$	65,470	$	383
States, municipalities and political subdivisions
0-6 months		6	$	6,731	$	99		7	$	5,894	$	72
7-12 months		2		1,906		34		1		216		1
> 12 months		3		1,717		23		5		2,420		35
Subtotal		11	$	10,354	$	156		13	$	8,530	$	108
Agency mortgage-backed securities
0-6 months		4	$	7,368	$	7		3	$	5,087	$	3
7-12 months		—		—		—		—		—		—
> 12 months		—		—		—		—		—		—
Subtotal		4	$	7,368	$	7		3	$	5,087	$	3
Residential mortgage obligations
0-6 months		3	$	787	$	100		6	$	6,672	$	184
7-12 months		5		2,534		101		7		5,250		313
> 12 months		47		11,780		1,808		47		10,749		2,351
Subtotal		55	$	15,101	$	2,009		60	$	22,671	$	2,848
Asset-backed securities
0-6 months		—	$	—	$	—		2	$	4,933	$	12
7-12 months		4		5,291		45		5		6,645		63
> 12 months		1		2		—		1		2		—
Subtotal		5	$	5,293	$	45		8	$	11,580	$	75
Commercial mortgage-backed securities
0-6 months		7	$	9,311	$	45		6	$	5,465	$	29
7-12 months		2		185		6		3		6,840		550
> 12 months		2		1,040		25		3		1,503		14
Subtotal		11	$	10,536	$	76		12	$	13,808	$	593
Corporate bonds
0-6 months		9	$	37,306	$	138		52	$	135,516	$	4,539
7-12 months		20		39,538		575		18		27,561		1,457
> 12 months		6		7,900		210		8		14,898		776
Subtotal		35	$	84,744	$	923		78	$	177,975	$	6,772
Total fixed maturities		151	$	313,550	$	4,072		183	$	305,121	$	10,782
Equity securities-common stocks
0-6 months		1	$	2,032	$	15		4	$	3,320	$	587
7-12 months		2		3,262		327		1		1,629		371
> 12 months		—		—		—		—		—		—
Total equity securities		3	$	5,294	$	342		5	$	4,949	$	958

Gross Unrealized Investment Losses

The following table summarizes the gross unrealized investment losses as of March 31, 2012 by length of time where the fair value is less than 80% of amortized cost.

	Period for Which Fair Value is Less than 80% of Amortized Cost
In thousands	Less than 3 months		Longer than 3 months, less than 6 months		6 months or  longer, less than 12 months		12 months or longer			Total
Fixed maturities	$	—	$	—	$	—	$	(547	)	$	(547	)
Equity securities		—		—		—		—			—
Total	$	—	$	—	$	—	$	(547	)	$	(547	)

Summary of Activity Related to OTTI Losses

The table below summarizes the Company’s activity related to OTTI losses for the periods indicated:

	Three Months Ended March 31,
	2012				2011
In thousands, except # of securities	Number of Securities		Amount		Number of Securities		Amount
Total other-than-temporary impairment losses:
Corporate and other bonds		—	$	—		—	$	—
Commercial mortgage-backed securities		—		—		—		—
Residential mortgage-backed securities		1		55		1		33
Asset-backed securities		—		—		—		—
Equities		2		143		1		230
Total		3	$	198		2	$	263
Less: Portion of loss in accumulated other comprehensive income (loss):
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				44				22
Asset-backed securities				—				—
Equities				—				—
Total			$	44			$	22
Impairment losses recognized in earnings
Corporate and other bonds			$	—			$	—
Commercial mortgage-backed securities				—				—
Residential mortgage-backed securities				11				11
Asset-backed securities				—				—
Equities				143				230
Total			$	154			$	241

Summary of Cumulative Amounts Related to Credit Loss Portion of the OTTI Losses on Debt Securities

The following table summarizes the cumulative amounts related to the Company’s credit loss portion of the OTTI losses on debt securities for the three months ended March 31, 2012 and 2011. The Company does not intend to sell and it is more likely than not that it will not be required to sell the securities prior to recovery of the amortized cost basis and for which the non-credit loss portion is included in other comprehensive income:

	Three Months Ended March 31,
In thousands	2012		2011
Beginning balance	$	3,321	$	2,228
Additions for credit loss impairments recognized in the current period on securities not previously impaired		—		—
Additions for credit loss impairments recognized in the current period on securities previously impaired		11		11
Reductions for credit loss impairments previously recognized on securities sold during the period		—		—
Ending balance	$	3,332	$	2,239

Contractual Maturity by Number of Years Until Maturity for Fixed Maturity Securities with a Gross Unrealized Loss

The contractual maturity dates for fixed maturity securities categorized by the number of years until maturity, with a gross unrealized loss as of March 31, 2012 is presented in the following table:

	As of March 31, 2012
	Gross Unrealized Losses					Fair Value
In thousands	Amount		Percent of Total			Amount		Percent of Total
Due in one year or less	$	102		3	%	$	12,586		4	%
Due after one year through five years		938		23	%		183,891		58	%
Due after five years through ten years		694		17	%		52,004		17	%
Due after ten years		201		5	%		26,771		9	%
Mortgage- and asset-backed securities		2,137		52	%		38,298		12	%
Total	$	4,072		100	%	$	313,550		100	%

Net Investment Income

The Company’s net investment income was derived from the following sources:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities	$	15,411		$	17,192
Equity securities		947			783
Short-term investments		312			267
Total investment income		16,670			18,242
Investment expenses		(5,412	)		(858	)
Net investment income	$	11,258		$	17,384

Change in Net Unrealized Gains/(Losses)

The change in net unrealized gains/(losses), inclusive of the change in the non credit portion of other-than-temporary impairment losses, consisted of:

	Three Months Ended March 31,
In thousands	2012		2011
Fixed maturities	$	9,128	$	(3,640	)
Equity securities		4,639		3,861
Gross unrealized gains (losses)		13,767		221
Deferred income tax		4,818		183
Change in net unrealized gains (losses), net	$	8,949	$	38

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

Realized gains/(losses), excluding net other-than-temporary impairment losses recognized in earnings, for the periods indicated were as follows:

	Three Months Ended March 31,
In thousands	2012			2011
Fixed maturities:
Gains	$	3,142		$	2,867
Losses		(1,300	)		(4,256	)
Fixed maturities, net	$	1,842		$	(1,389	)
Equity securities:
Gains	$	—		$	—
Losses		—			—
Equity securities, net	$	—		$	—
Net realized gains (losses)	$	1,842		$	(1,389	)

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, the Company’s fixed maturities and equity securities by asset class that are measured at fair value on a recurring basis as of March 31, 2012 and December 31, 2011:

	As of March 31, 2012
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	181,701	$	237,175	$	—	$	418,876
States, municipalities and political subdivisions		—		398,399		—		398,399
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		385,239		—		385,239
Residential mortgage obligations		—		20,254		—		20,254
Asset-backed securities		—		49,077		—		49,077
Commercial mortgage-backed securities		—		212,609		—		212,609
Subtotal	$	—	$	667,179	$	—	$	667,179
Corporate bonds		—		459,109		—		459,109
Total fixed maturities	$	181,701	$	1,761,862	$	—	$	1,943,563
Equity securities-common stocks		102,400		—		—		102,400
Total	$	284,101	$	1,761,862	$	—	$	2,045,963

	As of December 31, 2011
In thousands	Level 1		Level 2		Level 3		Total
Fixed maturities:
U.S. Government Treasury bonds, agency bonds, and foreign government bonds	$	136,625	$	199,445	$	—	$	336,070
States, municipalities and political subdivisions		—		410,836		—		410,836
Mortgage-backed and asset-backed securities:								—
Agency mortgage-backed securities		—		395,860		—		395,860
Residential mortgage obligations		—		23,148		—		23,148
Asset-backed securities		—		48,934		—		48,934
Commercial mortgage-backed securities		—		216,034		—		216,034
Subtotal	$	—	$	683,976	$	—	$	683,976
Corporate bonds		—		457,187		—		457,187
Total fixed maturities	$	136,625	$	1,751,444	$	—	$	1,888,069
Equity securities-common stocks		95,849		—		—		95,849
Total	$	232,474	$	1,751,444	$	—	$	1,983,918

Reconciliation of Beginning and Ending Balances for All Investments Measured at Fair Value Using Level 3 Inputs

The following tables present a reconciliation of the beginning and ending balances for all investments measured at fair value using Level 3 inputs during the three months ended March 31, 2011:

	For The Three Months Ended March 31, 2011
In thousands	Beginning Balance		Realized Gains (Losses)		Unrealized Gains (Losses)			Purchases		Sales			Settlements		Transfers into Level 3		Transfers out of Level 3			Ending Balance
Assets:
Commercial Mortgage Obligations	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—
Total assets	$	1,837	$	—	$	(26	)	$	—	$	(4	)	$	—	$	—	$	(1,807	)	$	—

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Credit Facility

3 Months Ended

Mar. 31, 2012

Credit Facility

Note 11. Credit Facility

On April 1, 2011, the Company entered into a $165 million credit facility agreement with ING Bank N.V., London Branch, individually and as Administrative Agent, and a syndicate of lenders. The credit facility, which is denominated in U.S. dollars, is utilized to fund the Company’s participation in Syndicate 1221 through letters of credit for the 2012 and 2011 underwriting years, as well as open prior years. The letters of credit issued under the facility are denominated in British pounds and their aggregate face amount will fluctuate based on exchange rates. If any letters of credit remain outstanding under the facility after December 31, 2012, the Company would be required to post additional collateral to secure the remaining letters of credit. As of March 31, 2012, letters of credit with an aggregate face amount of $150.7 million were outstanding under the credit facility.

This credit facility contains customary covenants for facilities of this type, including restrictions on indebtedness and liens, limitations on mergers, dividends and the sale of assets, and requirements as to maintaining certain consolidated tangible net worth, statutory surplus and other financial ratios. The credit facility also provides for customary events of default, including failure to pay principal, interest or fees when due, failure to comply with covenants, any representation or warranty made by the Company being false in any material respect, default under certain other indebtedness, certain insolvency or receivership events affecting the Company and its subsidiaries, the occurrence of certain material judgments, or a change in control of the Company. The letter of credit facility is secured by a pledge of the stock of certain insurance subsidiaries of the Company. To the extent the aggregate face amount issued under the credit facility exceeds the commitment amount, the Company is required to post collateral with the lead bank of the consortium. The Company was in compliance with all covenants under the credit facility as of March 31, 2012.

The applicable margin and applicable fee rate payable under the credit facility are based on a tiered schedule that is based on the Company’s then-current ratings issued by S&P and Moody’s with respect to the Company’s Senior Notes without third-party credit enhancement, and the amount of the Company’s own collateral utilized to fund its participation in Syndicate 1221.

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Income Taxes

3 Months Ended

Mar. 31, 2012

Income Taxes

Note 7. Income Taxes

The Company is subject to the tax laws and regulations of the United States (“U.S.”) and foreign countries in which it operates. The Company files a consolidated U.S. federal tax return, which includes all domestic subsidiaries and the U.K. Branch. The income from the foreign operations is designated as either U.S. connected income or non-U.S. connected income. Lloyd’s is required to pay U.S. income tax on U.S. connected income written by Lloyd’s syndicates. Lloyd’s and the Internal Revenue Service (“IRS”) have entered into an agreement whereby the amount of tax due on U.S. connected income is calculated by Lloyd’s and remitted directly to the IRS. These amounts are then charged to the corporate members in proportion to their participation in the relevant syndicates. The Company’s corporate members are subject to this agreement and will receive U.K. tax credits in the United Kingdom (“U.K.”) for any U.S. income tax incurred up to the U.K. income tax charged on the U.S. connected income. The non-U.S. connected insurance income would generally constitute taxable income under the Subpart F income section of the Internal Revenue Code (“Subpart F”) since less than 50% of Syndicate 1221’s premiums are derived within the U.K. and would therefore be subject to U.S. taxation when the Lloyd’s year of account closes. Taxes are accrued at a 35% rate on the Company’s foreign source insurance income and foreign tax credits, where available, are utilized to offset U.S. tax as permitted. The Company’s effective tax rate for Syndicate 1221 taxable income could substantially exceed 35% to the extent the Company is unable to offset U.S. taxes paid under Subpart F tax regulations with U.K. tax credits on future underwriting year distributions. U.S. taxes are not accrued on the earnings of the Company’s foreign agencies as these earnings are not includable as Subpart F income in the current year. These earnings are subject to taxes under U.K. tax regulations at a 26% rate through March 31, 2012. A finance bill was enacted in the U.K. that reduces the U.K. corporate tax rate from 26% to 24% effective April 2012. The effect of such tax rate change was not material.

The Company has not provided for U.S. deferred income taxes on the undistributed earnings of approximately $72.3 million of its non-U.S. subsidiaries since these earnings are intended to be permanently reinvested in the non-U.S. subsidiaries. However, in the future, if such earnings were distributed to the Company, taxes of approximately $1.5 million, assuming all foreign tax credits are realized, would be payable on such undistributed earnings and would be reflected in the tax provision for the year in which these earnings are no longer intended to be permanently reinvested in the foreign subsidiary.

Unrecognized tax benefits are differences between tax positions taken in the tax returns and benefits recognized in the financial statements. The Company has no unrecognized tax benefits as of March 31, 2012 and 2011. The Company did not incur any interest or penalties related to unrecognized tax benefits for the three months ended March 31, 2012 and 2011. The Company is currently not under examination by any major U.S. or foreign tax authority and is generally subject to U.S. Federal, state or local, or foreign tax examinations by tax authorities for 2008 and subsequent years.

The Company recorded income tax expense of $3.3 million for the three months ended March 31, 2012 compared to a benefit of $4.5 million for the same period in 2011, resulting in an effective tax rate of 29.3% for the three months ended March 31, 2012 and 36.3% for the comparable period in 2011. The effective tax rate on net investment income was 25.2% for the three months ended March 31, 2012 compared to 28.5% for the same period in 2011.

The Company had state and local deferred tax assets amounting to potential future tax benefits of $0.5 million and $0.2 million as of March 31, 2012 and December 31, 2011, respectively. Included in the deferred tax assets are state and local net operating loss carry-forwards of $0.2 million as of both March 31, 2012 and December 31, 2011. A valuation allowance was established for the full amount of these potential future tax benefits due to the uncertainty associated with their realization. The Company’s state and local tax carry-forwards as of March 31, 2012 expire from 2024 to 2031.

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2012

Stock-Based Compensation

Note 5. Stock-Based Compensation

Stock-based compensation granted under the Company’s stock plans is expensed in tranches over the vesting period. Options and non-performance based grants generally vest equally over a three or four year period and the options have a maximum term of ten years. Certain non-performance based grants vest over five years with one-third vesting in each of the third, fourth and fifth years. The Company’s performance based share grants generally consist of two types of awards. The restricted stock units issued in 2011 and after will cliff vest over a three year period, with 50% vesting in full, and 50% dependent on the compound annual growth in book value per share for the three years immediately prior to the vesting date, with actual shares that vest ranging between 150% to 0% of that portion of the original award. Those performance based restricted stock units issued prior to 2011 generally vest over five years with one-third vesting in each of the third, fourth and fifth years, dependent on the rolling three-year average return on equity based on the three years prior to the year in which the vesting occurs, with actual shares that vest ranging between 150% to 0% of the original award.

The amounts charged to expense for stock-based compensation for the three months ended March 31, 2012 and 2011 are presented in the following table:

	Three Months Ended March 31,
In thousands	2012			2011
Restricted stock units	$	1,212		$	948
Directors restricted stock grants (1)		60			60
Employee stock purchase plan		(26	)		55
Stock appreciation rights (2)		—			4
Stock options		—			—
Total stock-based compensation	$	1,246		$	1,067

(1) Relates to non-employee directors serving on the Parent Company’s Board of Directors, all of whom have been elected by the Company’s shareholders, as well as non-employee directors serving on NUAL’s Board of Directors.

(2) All outstanding stock appreciation rights were exercised during 2011. The Company will no longer issue awards from the Stock Appreciation Rights Plan as a result of the 2005 Amended and Restated Stock Incentive Plan.

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Lloyd's Syndicate 1221

3 Months Ended

Mar. 31, 2012

Lloyd's Syndicate 1221

Note 6. Lloyd’s Syndicate 1221

The Company’s Lloyd’s Operations included in the consolidated financial statements represents its participation in Syndicate 1221. Syndicate 1221’s stamp capacity is £184 million ($294 million) for the 2012 underwriting year compared to £175 million ($280 million) for the 2011 underwriting year. Stamp capacity is a measure of the amount of premiums a Lloyd’s syndicate is authorized to write based on a business plan approved by the Council of Lloyd’s. Syndicate 1221’s stamp capacity is expressed net of commission (as is standard at Lloyd’s). The Syndicate 1221 premiums recorded in the Company’s financial statements are gross of commission. The Company controlled 100% of Syndicate 1221’s stamp capacity for the 2012 and 2011 underwriting years through its wholly-owned Lloyd’s corporate member.

The Company provides letters of credit and posts cash to Lloyd’s to support its participation in Syndicate 1221’s stamp capacity. As of March 31, 2012, the Company had provided letters of credit of $150.7 million and did not have any cash collateral posted. If Syndicate 1221 increases its stamp capacity and the Company participates in the additional stamp capacity, or if Lloyd’s changes the capital requirements, the Company may be required to supply additional collateral acceptable to Lloyd’s. If the Company is unwilling or unable to provide additional acceptable collateral, the Company will be required to reduce its participation in the stamp capacity of Syndicate 1221. The letters of credit are provided through a credit facility with a consortium of banks which provides the Company with the ability to have letters of credit issued to support Syndicate 1221’s stamp capacity at Lloyd’s for the 2011 and 2012 underwriting years. If any letters of credit remain outstanding under the facility after December 31, 2012, the Company would be required to post additional collateral to secure the remaining letters of credit. If the credit facility is not renewed prior to December 31, 2012, the Company will need to find internal and/or external sources to provide either letters of credit or other collateral in order to continue to participate in Syndicate 1221. The credit facility is collateralized by all of the common stock of Navigators Insurance Company. Refer to Note 11, Credit Facility, for additional information.

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Senior Notes due May 1, 2016

3 Months Ended

Mar. 31, 2012

Senior Notes due May 1, 2016

Note 8. Senior Notes due May 1, 2016

On April 17, 2006, the Company completed a public debt offering of $125 million principal amount of 7% senior unsecured notes (the “Senior Notes”) and received net proceeds of $123.5 million. The principal amount of the Senior Notes is payable in a single installment on May 1, 2016. In April 2009, the Company repurchased $10.0 million aggregate principal amount of the Senior Notes from an unaffiliated note holder on the open market for $7.0 million, which generated a $3.0 million pre-tax gain that was reflected in Other income. The Senior Notes liability at March 31, 2012 was $114.3 million. The unamortized discount at March 31, 2012 was $0.7 million. The aggregate principal amount of the Senior Notes that will be repaid on May 1, 2016 as a result of these transactions is $115.0 million.

The fair value of the Senior Notes was $118.3 million and $119.3 million as of March 31, 2012 and December 31, 2011. The fair value was determined using quoted prices for similar instruments in active markets and is classified as Level 2 within the fair value hierarchy as defined by the accounting guidance for fair value measurements.

Interest is payable on the Senior Notes each May 1 and November 1. The effective interest rate related to the Senior Notes, based on the proceeds net of discount and all issuance costs, is approximately 7.17%. Interest expense on the Senior Notes for the three months ended March 31, 2012 and 2011 was $2.0 million.

The Senior Notes, the Company’s only senior unsecured obligation, will rank equally with any future senior unsecured indebtedness. The Company may redeem the Senior Notes at any time and from time to time, in whole or in part, at a “make-whole” redemption price. The terms of the Senior Notes contain various restrictive business and financial covenants typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the common stock of certain subsidiaries. As of March 31, 2012, the Company was in compliance with all such covenants.

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Senior Notes Due May 1, 2016 - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended
	Apr. 30, 2009	Apr. 17, 2006	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Debt Instrument [Line Items]
Senior Notes			$ 114,312,000		$ 114,276,000
Senior Notes due May 1, 2016
Debt Instrument [Line Items]
Principal amount of senior notes		125,000,000
Interest rate stated on senior notes		7.00%
Senior notes due date		May 01, 2016
Net proceeds from issuance of senior notes		123,500,000
Aggregate principal amount of senior notes repurchased from unaffiliated note holder	10,000,000
Repurchased senior notes	7,000,000
Pretax gain from repurchase of senior notes	3,000,000
Outstanding principal amount of senior notes			115,000,000
Unamortized discount			700,000
Senior Notes			114,300,000
Fair value of senior notes			118,300,000		119,300,000
Interest expense on senior notes			$ 2,000,000	$ 2,000,000
Effective interest rate related to senior notes			7.17%
Debt instrument, covenant compliance			As of March 31, 2012, the Company was in compliance with all such covenants.
Senior Notes due May 1, 2016 | Semi Annual Payment, First Payment
Debt Instrument [Line Items]
Interest payment date on senior notes			--05-01
Senior Notes due May 1, 2016 | Semi Annual Payment, Second Payment
Debt Instrument [Line Items]
Interest payment date on senior notes			--11-01

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Reinsurance Ceded (Tables)

3 Months Ended

Mar. 31, 2012

Lists of 20 Largest Reinsurers Measured by Reinsurance Recoverable

The following table lists the Company’s 20 largest reinsurers measured by the amount of reinsurance recoverable for ceded losses and LAE and ceded unearned premium (constituting approximately 73.4% of the total recoverable), together with the reinsurance recoverable and collateral as of March 31, 2012, and the reinsurers’ ratings from the indicated rating agency:

	Reinsurance Recoverables
In thousands	Unearned Premium		Paid/Unpaid Losses		Total		Collateral Held  (1)		AMB		S&P
Munich Reinsurance America Inc.		10,301		82,421		92,722		15		A+		AA-
Everest Reinsurance Company		14,229		77,070		91,299		6,875		A+		A+
Swiss Reinsurance America Corporation		5,248		86,241		91,489		5,984		A+		AA-
Transatlantic Reinsurance Company		14,335		74,038		88,373		7,103		A		A+
National Indemnity Company		22,240		38,064		60,304		12,718		A++		AA+
Partner Reinsurance Europe		6,883		31,065		37,948		20,944		A+		A+
Lloyd’s Syndicate #2003		6,344		32,108		38,452		7,052		A		A+
Berkley Insurance Company		1,658		29,647		31,305		423		A+		A+
Allied World Reinsurance		6,934		21,672		28,606		2,776		A		A
General Reinsurance Corporation		743		25,836		26,579		3,708		A++		AA+
Scor Holding (Switzerland) AG		1,696		24,742		26,438		8,527		A		A
Ace Property and Casualty Insurance Company		1,155		21,533		22,688		—		A+		AA-
Sirius America Insurance Company		114		22,373		22,487		279		A		A-
Tower Insurance Company		8,202		13,006		21,208		3,154		A-		NR
Platinum Underwriters Re		673		20,106		20,779		2,305		A		A-
Validus Reinsurance Ltd.		2,654		19,364		22,018		12,075		A		A-
Munchener Ruckversicherungs-Gesellschaft		520		19,913		20,433		6,716		A+		AA-
AXIS Re Europe		4,687		13,835		18,522		5,246		A		A+
Lloyd’s Syndicate #4000		2,000		14,172		16,172		1,828		A		A+
Scor Global P&C SE		7,455		8,381		15,836		3,799		A		A
Top 20 Total	$	118,071	$	675,587	$	793,658	$	111,527
All Others		54,145		232,827		286,972		87,359
Total	$	172,216	$	908,414	$	1,080,630	$	198,886

(1) Collateral includes letter of credit balances payable and other balances held by the Company’s Insurance Companies and Lloyd’s Operations.

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Financial Data by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Dec. 31, 2011
Segment Reporting Information [Line Items]
Gross written premiums	$ 343,149		$ 296,283
Net written premiums	243,045		193,076
Net earned premiums	183,119		152,478
Net losses and loss adjustment expenses	(117,985)		(116,788)
Commission expenses	(29,450)		(26,200)
Other operating expenses	(36,307)		(36,575)
Other income (expense)	911		991
Underwriting profit (loss)	288		(26,094)
Net investment income	11,258		17,384
Net realized gains (losses)	1,688		(1,630)
Interest expense	(2,049)		(2,046)
Income (loss) before income taxes	11,185		(12,386)
Income tax expense (benefit)	3,281		(4,493)
Net income (loss)	7,904		(7,893)
Identifiable assets	3,847,527		3,637,110		3,670,007
Losses and loss adjustment expenses ratio	64.40%		76.60%
Commission expense ratio	16.10%		17.20%
Other operating expense ratio	19.30%	[1]	23.30%	[1]
Combined ratio	99.80%		117.10%
Insurance Companies
Segment Reporting Information [Line Items]
Gross written premiums	248,338		206,776
Net written premiums	181,250		130,740
Net earned premiums	131,548		98,820
Net losses and loss adjustment expenses	(91,177)		(74,797)
Commission expenses	(19,301)		(12,340)
Other operating expenses	(25,345)		(26,799)
Other income (expense)	1,642		1,691
Underwriting profit (loss)	(2,633)		(13,425)
Net investment income	8,935		14,983
Net realized gains (losses)	1,875		(245)
Income (loss) before income taxes	8,177		1,313
Income tax expense (benefit)	2,258		228
Net income (loss)	5,919		1,085
Identifiable assets	2,899,369		2,685,679
Losses and loss adjustment expenses ratio	69.30%		75.70%
Commission expense ratio	14.70%		12.50%
Other operating expense ratio	18.00%	[1]	25.40%	[1]
Combined ratio	102.00%		113.60%
Lloyd's Operations
Segment Reporting Information [Line Items]
Gross written premiums	94,811		89,507
Net written premiums	61,795		62,336
Net earned premiums	51,571		53,658
Net losses and loss adjustment expenses	(26,808)		(41,991)
Commission expenses	(10,886)		(14,407)
Other operating expenses	(10,962)		(9,776)
Other income (expense)	6		(153)
Underwriting profit (loss)	2,921		(12,669)
Net investment income	2,283		2,255
Net realized gains (losses)	(187)		(1,385)
Income (loss) before income taxes	5,017		(11,799)
Income tax expense (benefit)	1,726		(4,056)
Net income (loss)	3,291		(7,743)
Identifiable assets	907,760		883,603
Losses and loss adjustment expenses ratio	52.00%		78.30%
Commission expense ratio	21.10%		26.80%
Other operating expense ratio	21.20%	[1]	18.50%	[1]
Combined ratio	94.30%		123.60%
Corporate
Segment Reporting Information [Line Items]
Commission expenses	737	[2]	547	[2]
Other income (expense)	(737)	[2]	(547)	[2]
Underwriting profit (loss)			0	[2]
Net investment income	40	[2]	146	[2]
Interest expense	(2,049)	[2]	(2,046)	[2]
Income (loss) before income taxes	(2,009)	[2]	(1,900)	[2]
Income tax expense (benefit)	(703)	[2]	(665)	[2]
Net income (loss)	(1,306)	[2]	(1,235)	[2]
Identifiable assets	$ 40,398	[2]	$ 67,828	[2]

[1] Includes Other operating expenses and Other income.

[2] Includes Corporate segment intercompany eliminations.

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Reconciliation of Beginning and Ending Balances for all Investments Measured at Fair Value Using Level 3 Inputs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 1,837
Realized Gains (Losses)
Unrealized Gains (Losses)	(26)
Purchases
Sales	(4)
Settlements
Transfers into Level 3
Transfers out of Level 3	(1,807)
Commercial mortgage-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	1,837
Realized Gains (Losses)
Unrealized Gains (Losses)	(26)
Purchases
Sales	(4)
Settlements
Transfers into Level 3
Transfers out of Level 3	$ (1,807)

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Gross Unrealized Investment Losses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Fixed maturities
Gain (Loss) on Investments [Line Items]
Gross Unrealized Loss	$ (4,072)	$ (10,782)
Less than 80% of amortized cost
Gain (Loss) on Investments [Line Items]
Gross Unrealized Loss	(547)
Less than 80% of amortized cost | Fixed maturities
Gain (Loss) on Investments [Line Items]
Gross Unrealized Loss	(547)
Less than 80% of amortized cost | > 12 months
Gain (Loss) on Investments [Line Items]
Gross Unrealized Loss	(547)
Less than 80% of amortized cost | > 12 months | Fixed maturities
Gain (Loss) on Investments [Line Items]
Gross Unrealized Loss	$ (547)

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Net income (loss)	$ 7,904		$ (7,893)
Other comprehensive income (loss):
Change in net unrealized gains (losses) on investments, net of deferred tax of $4,818 and $183 in 2012 and 2011, respectively	8,949	[1]	38	[1]
Change in foreign currency translation gains (losses), net of deferred tax of $1,399 and $363 in 2012 and 2011, respectively	(2,972)		931
Comprehensive income (loss)	5,977		969
Comprehensive income (loss)	$ 13,881		$ (6,924)

[1] Disclosure of reclassification amount, net of tax: Unrealized gains (losses) on investments arising during period $ 9,421 $ 183 Reclassification adjustment for net realized gains (losses) included in net income (638 ) (123 ) Reclassification adjustment for other-than-temporary impairment losses recognized in net income 166 (22 ) Change in net unrealized gains (losses) on investments, net of tax $ 8,949 $ 38

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Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2012

Recent Accounting Pronouncements

Note 2. Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In September 2011, the FASB issued Accounting Standard Update (“ASU”) 2011-08 amending Codification topic 350 — Intangibles — Goodwill and Other. The amendment simplifies how goodwill is tested for impairment by permitting entities to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value as a basis for determining whether it is necessary to perform the two step goodwill impairment test. The amendment is effective for the interim and annual goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted, but the Company did not early adopt. Adoption of this amendment had no impact on the Company’s consolidated financial condition, results of operations or cash flows.

In June 2011, the FASB issued ASU 2011-05 amending Codification Topic 220 — Comprehensive Income. The amendment requires that other comprehensive income be either presented in a single continuous statement or two separate but consecutive statements. In addition, the amendment requires the disclosure of reclassification adjustments for items reclassified from other comprehensive income to net income on the face of the financial statements. The amendment is effective for the interim and annual periods beginning after December 15, 2011 and should be applied retrospectively. This standard only affected the Company’s presentation of comprehensive income and did not affect the Company’s consolidated financial position, results of operations, and cash flows.

In May 2011, the FASB issued ASU 2011-04 amending Codification Topic 820 — Fair Value Measurements and Disclosures. The amendments were intended to result in common fair value measurement and disclosure requirements in U.S. GAAP and International Financial Reporting Standards (“IFRS”). The amendment expands and enhances current disclosures about fair value measurement and clarifies the FASB’s intent regarding the application of existing fair value measurement requirements in certain circumstances. The amendments are effective for the interim and annual periods beginning after December 15, 2011 and should be applied prospectively. Adoption of the amendment had no impact on the Company’s consolidated financial position, results of operations and cash flows.

In October 2010, the FASB issued ASU 2010-26 amending Codification Topic 944 – Financial Services – Insurance; Accounting for Costs Associated with Acquiring or Renewing Insurance Contracts. The amendment clarifies which costs relating to the acquisition of new or renewal insurance contracts qualify for deferral. In addition, the amendment limits deferrable costs that can be capitalized to those that are incremental direct costs related to the successful acquisition of new or renewal insurance contracts. The amendment is effective for fiscal years and interim periods within a fiscal year, beginning after December 15, 2011. The guidance is to be applied prospectively upon effectiveness of the amendment, with retrospective application permitted, but not required. The Company did not early adopt. The Company adopted this guidance prospectively in the first quarter of 2012. The amount of acquisition costs capitalized during the period of adoption compared with the amount of acquisition costs that would have been capitalized during the period if the entity’s previous policy had been applied during this period resulted in a decrease in the amount capitalized of $0.9 million net of tax.

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Additional Financial Data by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Segment Reporting Information [Line Items]
Gross written premiums	$ 343,149	$ 296,283
Net written premiums	243,045	193,076
Net earned premiums	183,119	152,478
Marine
Segment Reporting Information [Line Items]
Gross written premiums	124,195	131,503
Net written premiums	91,390	103,889
Net earned premiums	69,884	77,537
Property Casualty
Segment Reporting Information [Line Items]
Gross written premiums	179,660	132,190
Net written premiums	123,420	71,293
Net earned premiums	87,525	54,829
Professional Liability
Segment Reporting Information [Line Items]
Gross written premiums	39,294	32,590
Net written premiums	28,235	17,894
Net earned premiums	25,710	20,112
Insurance Companies
Segment Reporting Information [Line Items]
Gross written premiums	248,338	206,776
Net written premiums	181,250	130,740
Net earned premiums	131,548	98,820
Insurance Companies | Marine
Segment Reporting Information [Line Items]
Gross written premiums	61,865	70,348
Net written premiums	42,865	54,218
Net earned premiums	35,275	40,559
Insurance Companies | Property Casualty
Segment Reporting Information [Line Items]
Gross written premiums	155,919	112,888
Net written premiums	114,532	62,907
Net earned premiums	74,368	42,935
Insurance Companies | Professional Liability
Segment Reporting Information [Line Items]
Gross written premiums	30,554	23,540
Net written premiums	23,853	13,615
Net earned premiums	21,905	15,326
Lloyd's Operations
Segment Reporting Information [Line Items]
Gross written premiums	94,811	89,507
Net written premiums	61,795	62,336
Net earned premiums	51,571	53,658
Lloyd's Operations | Marine
Segment Reporting Information [Line Items]
Gross written premiums	62,330	61,155
Net written premiums	48,525	49,671
Net earned premiums	34,609	36,978
Lloyd's Operations | Property Casualty
Segment Reporting Information [Line Items]
Gross written premiums	23,741	19,302
Net written premiums	8,888	8,386
Net earned premiums	13,157	11,894
Lloyd's Operations | Professional Liability
Segment Reporting Information [Line Items]
Gross written premiums	8,740	9,050
Net written premiums	4,382	4,279
Net earned premiums	$ 3,805	$ 4,786

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Investments - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2012 Investment	Mar. 31, 2011	Dec. 31, 2011
Schedule of Investments [Line Items]
Investment Expenses	$ 5,412,000	$ 858,000
Number of significant fair value hierarchy classification judgments	0
Investments pledged under a reinsurance treaty	300,000		300,000
Settlement Agreement
Schedule of Investments [Line Items]
Investment Expenses	4,500,000
State Insurance departments
Schedule of Investments [Line Items]
Fixed maturities, securities deposited	9,000,000		10,200,000
UK Bank
Schedule of Investments [Line Items]
Investment securities deposited	1,200,000
Equity Securities | Maximum
Schedule of Investments [Line Items]
Percentage of fair value over cost	80.00%
Non Government backed Securities | Maximum
Schedule of Investments [Line Items]
Percentage of investment	5.00%		5.00%
Non Government backed Securities | Investments
Schedule of Investments [Line Items]
Gross Unrealized Loss	$ 300,000	$ 1,400,000
Mortgage-backed and asset-backed securities
Schedule of Investments [Line Items]
Securities, effective maturities	3.8

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2012

Financial Data by Segment

Financial data by segment for the three months ended March 31, 2012 and 2011 was as follows:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	248,338		$	94,811		$	—		$	343,149
Net written premiums		181,250			61,795			—			243,045
Net earned premiums		131,548			51,571			—			183,119
Net losses and loss adjustment expenses		(91,177	)		(26,808	)		—			(117,985	)
Commission expenses		(19,301	)		(10,886	)		737			(29,450	)
Other operating expenses		(25,345	)		(10,962	)		—			(36,307	)
Other income (expense)		1,642			6			(737	)		911
Underwriting profit (loss)	$	(2,633	)	$	2,921		$	—		$	288
Net investment income		8,935			2,283			40			11,258
Net realized gains (losses)		1,875			(187	)		—			1,688
Interest expense		—			—			(2,049	)		(2,049	)
Income (loss) before income taxes	$	8,177		$	5,017		$	(2,009	)	$	11,185
Income tax expense (benefit)		2,258			1,726			(703	)		3,281
Net income (loss)	$	5,919		$	3,291		$	(1,306	)	$	7,904
Identifiable assets	$	2,899,369		$	907,760		$	40,398		$	3,847,527
Losses and loss adjustment expenses ratio		69.3	%		52.0	%					64.4	%
Commission expense ratio		14.7	%		21.1	%					16.1	%
Other operating expense ratio (2)		18.0	%		21.2	%					19.3	%
Combined ratio		102.0	%		94.3	%					99.8	%

(1) - Includes Corporate segment intercompany eliminations.

(2) - Includes Other operating expenses and Other income.

	Three Months Ended March 31, 2011
In thousands	Insurance Companies			Lloyd’s Operations			Corporate  (1)			Total
Gross written premiums	$	206,776		$	89,507		$	—		$	296,283
Net written premiums		130,740			62,336			—			193,076
Net earned premiums		98,820			53,658			—			152,478
Net losses and loss adjustment expenses		(74,797	)		(41,991	)		—			(116,788	)
Commission expenses		(12,340	)		(14,407	)		547			(26,200	)
Other operating expenses		(26,799	)		(9,776	)		—			(36,575	)
Other income (expense)		1,691			(153	)		(547	)		991
Underwriting profit (loss)	$	(13,425	)	$	(12,669	)	$	0		$	(26,094	)
Net investment income		14,983			2,255			146			17,384
Net realized gains (losses)		(245	)		(1,385	)		—			(1,630	)
Interest expense		—			—			(2,046	)		(2,046	)
Income (loss) before income taxes	$	1,313		$	(11,799	)	$	(1,900	)	$	(12,386	)
Income tax expense (benefit)		228			(4,056	)		(665	)		(4,493	)
Net income (loss)	$	1,085		$	(7,743	)	$	(1,235	)	$	(7,893	)
Identifiable assets	$	2,685,679		$	883,603		$	67,828		$	3,637,110
Losses and loss adjustment expenses ratio		75.7	%		78.3	%					76.6	%
Commission expense ratio		12.5	%		26.8	%					17.2	%
Other operating expense ratio (2)		25.4	%		18.5	%					23.3	%
Combined ratio		113.6	%		123.6	%					117.1	%

(1) - Includes Corporate segment intercompany eliminations.

(2) -Includes Other operating expenses and Other income.

Additional Financial Data by Segment

The following tables provide additional financial data by segment for the three months ended March 31, 2012 and 2011:

	Three Months Ended March 31, 2012
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	61,865	$	62,330	$	124,195
Property casualty		155,919		23,741		179,660
Professional liability		30,554		8,740		39,294
Total	$	248,338	$	94,811	$	343,149
Net written premiums:
Marine	$	42,865	$	48,525	$	91,390
Property casualty		114,532		8,888		123,420
Professional liability		23,853		4,382		28,235
Total	$	181,250	$	61,795	$	243,045
Net earned premiums:
Marine	$	35,275	$	34,609	$	69,884
Property casualty		74,368		13,157		87,525
Professional liability		21,905		3,805		25,710
Total	$	131,548	$	51,571	$	183,119

	Three Months Ended March 31, 2011
In thousands	Insurance Companies		Lloyd’s Operations		Total
Gross written premiums:
Marine	$	70,348	$	61,155	$	131,503
Property casualty		112,888		19,302		132,190
Professional liability		23,540		9,050		32,590
Total	$	206,776	$	89,507	$	296,283
Net written premiums:
Marine	$	54,218	$	49,671	$	103,889
Property casualty		62,907		8,386		71,293
Professional liability		13,615		4,279		17,894
Total	$	130,740	$	62,336	$	193,076
Net earned premiums:
Marine	$	40,559	$	36,978	$	77,537
Property casualty		42,935		11,894		54,829
Professional liability		15,326		4,786		20,112
Total	$	98,820	$	53,658	$	152,478