Schedule III - Supplementary Insurance Information

12 Months Ended

Dec. 31, 2011

Supplementary Insurance Information [Abstract]

Schedule III - Supplementary Insurance Information

Schedule III

W. R. Berkley Corporation and Subsidiaries

Supplementary Insurance Information

December 31, 2011, 2010 and 2009

(Amounts in thousands)

	Deferrred Policy Acquisition Cost		Reserve for Losses and Loss Expenses		Unearned Premiums		Premiums Earned		Net Investment Income		Loss and Loss Expenses		Amortization of Deferred Policy Acquisition Cost		Other Operating Cost and Expenses		Net Premiums Written
December 31, 2011
Specialty	$	147,245	$	3,306,535	$	822,186	$	1,442,748	$	175,289	$	857,223	$	312,230	$	158,529	$	1,554,516
Regional	139,519		1,370,748		530,171		1,065,975		75,404		725,195		302,149		85,764		1,064,507
Alternative markets	34,928		2,506,424		287,246		612,558		121,360		442,721		99,938		131,260		619,097
Reinsurance	58,143		1,523,210		207,956		426,008		91,871		262,286		130,354		41,989		430,329
International	68,960		630,217		342,016		613,578		42,882		370,940		189,729		55,707		688,919
Corporate and adjustments	—		—		—		—		19,545		—		—		113,680		—
Total	$	448,795	$	9,337,134	$	2,189,575	$	4,160,867	$	526,351	$	2,658,365	$	1,034,400	$	586,929	$	4,357,368
December 31, 2010
Specialty	$	122,440	$	3,186,769	$	693,358	$	1,288,373	$	180,063	$	750,831	$	263,279	$	160,811	$	1,311,831
Regional	139,289		1,378,936		530,672		1,066,922		82,411		647,986		293,690		93,418		1,044,347
Alternative markets	33,471		2,355,007		261,858		608,191		123,309		410,873		92,364		128,829		582,045
Reinsurance	56,834		1,591,397		203,430		419,356		103,079		220,230		129,508		42,775		401,239
International	53,908		504,440		264,403		452,740		32,794		279,947		138,376		46,037		511,464
Corporate and adjustments	—		—		—		—		8,869		—		—		314,841		—
Total	$	405,942	$	9,016,549	$	1,953,721	$	3,835,582	$	530,525	$	2,309,867	$	917,217	$	786,711	$	3,850,926
December 31, 2009
Specialty	$	116,234	$	3,210,479	$	662,972	$	1,354,355	$	125,351	$	838,894	$	297,388	$	126,078	$	1,260,451
Regional	142,249		1,440,158		554,426		1,116,871		57,530		686,093		289,973		94,982		1,081,100
Alternative markets	34,443		2,221,488		287,031		597,932		83,719		378,961		89,432		137,415		589,637
Reinsurance	60,219		1,787,006		225,209		411,511		75,505		238,075		127,446		35,137		423,425
International	38,215		412,540		198,790		325,180		26,767		194,684		98,915		35,629		375,482
Corporate and adjustments	—		—		—		—		10,136		—		—		291,857		—
Total	$	391,360	$	9,071,671	$	1,928,428	$	3,805,849	$	379,008	$	2,336,707	$	903,154	$	721,098	$	3,730,095

See accompanying Report of Independent Registered Public Accounting Firm.