Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

	Three Months Ended
U.S. Reinsurance	March 31,
(Dollars in thousands)	2015		2014
Gross written premiums	$	562,647	$	530,301
Net written premiums		240,694		251,521
Premiums earned	$	255,412	$	218,191
Incurred losses and LAE		111,455		115,984
Commission and brokerage		58,364		40,136
Other underwriting expenses		11,529		9,482
Underwriting gain (loss)	$	74,064	$	52,589

	Three Months Ended
International	March 31,
(Dollars in thousands)	2015			2014
Gross written premiums	$	333,615		$	328,878
Net written premiums		121,681			141,457
Premiums earned	$	140,699		$	145,004
Incurred losses and LAE		101,445			83,575
Commission and brokerage		33,999			29,169
Other underwriting expenses		8,115			7,837
Underwriting gain (loss)	$	(2,860	)	$	24,423

	Three Months Ended
Insurance	March 31,
(Dollars in thousands)	2015			2014
Gross written premiums	$	330,501		$	225,276
Net written premiums		146,052			106,726
Premiums earned	$	124,951		$	107,250
Incurred losses and LAE		95,980			78,487
Commission and brokerage		4,168			6,789
Other underwriting expenses		28,899			21,932
Underwriting gain (loss)	$	(4,096	)	$	42

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

	Three Months Ended
	March 31,
(Dollars in thousands)	2015			2014
Underwriting gain (loss)	$	67,108		$	77,054
Net investment income		72,581			63,787
Net realized capital gains (losses)		21,296			(4,050	)
Corporate expense		(1,609	)		(1,302	)
Interest, fee and bond issue cost amortization expense		(8,859	)		(7,436	)
Other income (expense)		15,833			(3,055	)
Income (loss) before taxes	$	166,350		$	124,998

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

	Three Months Ended
	March 31,
(Dollars in thousands)	2015		2014
Canada	$	23,512	$	37,659