Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

	Three Months Ended
U.S. Reinsurance	March 31,
(Dollars in thousands)	2014		2013
Gross written premiums	$	495,641	$	434,791
Net written premiums		497,757		434,639
Premiums earned	$	429,641	$	392,616
Incurred losses and LAE		213,455		198,158
Commission and brokerage		92,968		87,326
Other underwriting expenses		9,482		10,534
Underwriting gain (loss)	$	113,736	$	96,598

	Three Months Ended
International	March 31,
(Dollars in thousands)	2014		2013
Gross written premiums	$	321,242	$	297,560
Net written premiums		309,037		293,982
Premiums earned	$	318,381	$	311,978
Incurred losses and LAE		163,174		161,199
Commission and brokerage		70,974		71,444
Other underwriting expenses		7,837		7,930
Underwriting gain (loss)	$	76,396	$	71,405

	Three Months Ended
Bermuda	March 31,
(Dollars in thousands)	2014		2013
Gross written premiums	$	183,415	$	195,758
Net written premiums		182,570		195,823
Premiums earned	$	173,686	$	185,333
Incurred losses and LAE		94,508		91,996
Commission and brokerage		45,708		43,651
Other underwriting expenses		8,286		7,759
Underwriting gain (loss)	$	25,184	$	41,927

	Three Months Ended
Insurance	March 31,
(Dollars in thousands)	2014		2013
Gross written premiums	$	230,650	$	252,681
Net written premiums		211,668		225,249
Premiums earned	$	203,237	$	198,832
Incurred losses and LAE		142,191		141,291
Commission and brokerage		34,209		30,625
Other underwriting expenses		23,233		26,723
Underwriting gain (loss)	$	3,604	$	193

	Three Months Ended
Mt. Logan Re	March 31,
(Dollars in thousands)	2014		2013
Gross written premiums	$	36,476	$	-
Net written premiums		26,557		-
Premiums earned	$	19,545	$	-
Incurred losses and LAE		6,081		-
Commission and brokerage		2,143		-
Other underwriting expenses		1,800		-
Underwriting gain (loss)	$	9,521	$	-

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

	Three Months Ended
	March 31,
(Dollars in thousands)	2014			2013
Underwriting gain (loss)	$	228,441		$	210,123
Net investment income		123,157			145,781
Net realized capital gains (losses)		21,126			126,735
Net derivative gain (loss)		(1,661	)		15,285
Corporate expenses		(4,945	)		(5,717	)
Interest, fee and bond issue cost amortization expense		(7,568	)		(13,481	)
Other income (expense)		(3,296	)		(8,887	)
Income (loss) before taxes	$	355,254		$	469,839

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

	Three Months Ended
	March 31,
(Dollars in thousands)	2014		2013
United Kingdom	$	206,783	$	147,987