Schedule IV - Reinsurance

12 Months Ended

Dec. 31, 2015

Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]

Schedule IV - Reinsurance

Schedule IV

W. R. Berkley Corporation and Subsidiaries

Reinsurance

Years ended December 31, 2015, 2014 and 2013

	Premiums Written
(In thousands, other than percentages)	Direct Amount		Ceded to Other Companies		Assumed from Other Companies		Net Amount		Percentage of Amount Assumed to Net
Year ended December 31, 2015:
Insurance-Domestic	$	5,521,447	$	871,358	$	162,741	$	4,812,830	3.4	%
Insurance-International	874,359		144,737		48,945		778,567		6.3	%
Reinsurance-Global	16,727		44,383		625,774		598,118		104.6	%
Total	$	6,412,533	$	1,060,478	$	837,460	$	6,189,515	13.5	%
Year ended December 31, 2014:
Insurance-Domestic	$	5,214,849	$	866,092	$	168,830	$	4,517,587	3.7	%
Insurance-International	927,799		156,195		56,472		828,076		6.8	%
Reinsurance-Global	42,594		43,604		652,294		651,284		100.2	%
Total	$	6,185,242	$	1,065,891	$	877,596	$	5,996,947	14.6	%
Year ended December 31, 2013:
Insurance-Domestic	$	4,699,348	$	809,368	$	104,407	$	3,994,387	2.6	%
Insurance-International	887,027		142,591		11,749		756,185		1.6	%
Reinsurance-Global	39,797		58,959		768,763		749,601		102.6	%
Total	$	5,626,172	$	1,010,918	$	884,919	$	5,500,173	16.1	%

See accompanying Report of Independent Registered Public Accounting Firm.