Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

U.S. Reinsurance	Years Ended December 31,
(Dollars in thousands)	2014		2013		2012
Gross written premiums	$	2,039,578	$	1,809,669	$	1,310,683
Net written premiums		1,983,800		1,807,067		1,306,463
Premiums earned	$	1,986,769	$	1,671,513	$	1,416,407
Incurred losses and LAE		954,525		814,668		1,050,394
Commission and brokerage		466,291		366,890		350,634
Other underwriting expenses		45,583		47,176		44,776
Underwriting gain (loss)	$	520,370	$	442,779	$	(29,397	)

International	Years Ended December 31,
(Dollars in thousands)	2014		2013		2012
Gross written premiums	$	1,582,426	$	1,345,770	$	1,192,306
Net written premiums		1,336,633		1,327,430		1,188,745
Premiums earned	$	1,310,903	$	1,289,341	$	1,214,840
Incurred losses and LAE		748,174		675,362		586,325
Commission and brokerage		306,229		295,883		300,116
Other underwriting expenses		34,598		33,910		29,294
Underwriting gain (loss)	$	221,902	$	284,186	$	299,105

Bermuda	Years Ended December 31,
(Dollars in thousands)	2014		2013		2012
Gross written premiums	$	770,249	$	774,268	$	734,405
Net written premiums		744,664		765,660		733,751
Premiums earned	$	715,736	$	737,986	$	680,948
Incurred losses and LAE		361,792		374,375		408,230
Commission and brokerage		198,848		179,138		184,357
Other underwriting expenses		34,923		34,654		30,607
Underwriting gain (loss)	$	120,173	$	149,819	$	57,754

Insurance	Years Ended December 31,
(Dollars in thousands)	2014			2013			2012
Gross written premiums	$	1,218,372		$	1,268,745		$	1,073,143
Net written premiums		1,067,333			1,086,217			852,112
Premiums earned	$	1,030,299		$	1,037,425		$	852,433
Incurred losses and LAE		811,445			931,466			700,316
Commission and brokerage		149,777			133,695			117,594
Other underwriting expenses		118,001			119,283			102,982
Underwriting gain (loss)	$	(48,924	)	$	(147,019	)	$	(68,459	)

Mt. Logan Re	Years Ended December 31,
(Dollars in thousands)	2014		2013		2012
Gross written premiums	$	138,362	$	20,182	$	-
Net written premiums		124,473		18,447		-
Premiums earned	$	125,428	$	17,278	$	-
Incurred losses and LAE		30,598		4,380		-
Commission and brokerage		14,441		1,952		-
Other underwriting expenses		7,295		2,103		-
Underwriting gain (loss)	$	73,094	$	8,843	$	-

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

	Years Ended December 31,
(Dollars in thousands)	2014			2013			2012
Underwriting gain (loss)	$	886,615		$	738,608		$	259,003
Net investment income		530,570			548,509			600,202
Net realized capital gains (losses)		84,046			300,227			164,400
Net derivative gain (loss)		(11,599	)		44,044			(9,738	)
Corporate expenses		(23,421	)		(24,817	)		(23,976	)
Interest, fee and bond issue cost amortization expense		(38,533	)		(46,118	)		(53,683	)
Other income (expense)		18,437			(5,487	)		3,318
Income (loss) before taxes	$	1,446,115		$	1,554,966		$	939,526

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

	Years Ended December 31,
(Dollars in thousands)	2014		2013		2012
United Kingdom	$	676,490	$	555,332	$	456,724