Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

	Three Months Ended				Nine Months Ended
U.S. Reinsurance	September 30,				September 30,
(Dollars in thousands)	2015		2014		2015		2014
Gross written premiums	$	601,570	$	679,904	$	1,615,276	$	1,663,320
Net written premiums		247,352		304,442		672,753		771,054
Premiums earned	$	235,275	$	275,521	$	726,113	$	739,977
Incurred losses and LAE		109,137		125,475		337,065		371,135
Commission and brokerage		48,881		51,231		141,948		144,747
Other underwriting expenses		13,718		12,119		37,054		33,054
Underwriting gain (loss)	$	63,539	$	86,696	$	210,046	$	191,041

	Three Months Ended						Nine Months Ended
International	September 30,						September 30,
(Dollars in thousands)	2015			2014			2015			2014
Gross written premiums	$	374,138		$	419,457		$	1,019,406		$	1,214,343
Net written premiums		147,991			157,932			417,071			446,599
Premiums earned	$	135,130		$	145,662		$	433,751		$	438,394
Incurred losses and LAE		128,454			113,703			339,926			286,166
Commission and brokerage		27,936			23,767			93,178			80,348
Other underwriting expenses		9,128			8,759			25,292			24,689
Underwriting gain (loss)	$	(30,388	)	$	(567	)	$	(24,645	)	$	47,191

	Three Months Ended						Nine Months Ended
Insurance	September 30,						September 30,
(Dollars in thousands)	2015			2014			2015		2014
Gross written premiums	$	473,003		$	354,033		$	1,130,233	$	885,006
Net written premiums		203,730			149,542			490,140		386,694
Premiums earned	$	175,645		$	148,414		$	428,672	$	382,407
Incurred losses and LAE		133,163			141,402			325,522		322,842
Commission and brokerage		(4,666	)		4,170			6,509		15,489
Other underwriting expenses		34,107			29,745			94,723		79,289
Underwriting gain (loss)	$	13,041		$	(26,903	)	$	1,918	$	(35,213	)

Schedule Of Underwriting Results For Operating Segments To Income (Loss) Before Taxes

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(Dollars in thousands)	2015			2014			2015			2014
Underwriting gain (loss)	$	46,192		$	59,226		$	187,319		$	203,019
Net investment income		63,363			83,446			206,869			215,869
Net realized capital gains (losses)		(121,695	)		(160	)		(49,174	)		120,904
Corporate expense		(1,637	)		(4,620	)		(5,031	)		(5,398	)
Interest, fee and bond issue cost amortization expense		(8,859	)		(12,292	)		(26,576	)		(28,539	)
Other income (expense)		10,828			(3,739	)		38,950			(15,576	)
Income (loss) before taxes	$	(11,808	)	$	121,861		$	352,357		$	490,279

Schedule Of Gross Written Premium Derived From Largest Non-U.S. Market

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(Dollars in thousands)	2015		2014		2015		2014
Canada gross written premiums	$	31,903	$	41,644	$	85,575	$	116,133