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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

	Three Months Ended						Nine Months Ended
Reinsurance	September 30,						September 30,
(Dollars in thousands)	2021			2020			2021			2020
Gross written premiums	$	2,488,344		$	2,086,961		$	6,695,594		$	5,403,080
Net written premiums		2,292,957			1,936,851			6,265,825			4,974,034
Premiums earned	$	1,976,454		$	1,669,257		$	5,674,707		$	4,656,733
Incurred losses and LAE		1,766,197			1,335,048			4,206,243			3,361,367
Commission and brokerage		471,079			373,251			1,353,062			1,130,946
Other underwriting expenses		45,347			51,333			144,408			135,170
Underwriting gain (loss)	$	(306,170)		$	(90,375)		$	(29,006)		$	29,250

	Three Months Ended						Nine Months Ended
Insurance	September 30,						September 30,
(Dollars in thousands)	2021			2020			2021			2020
Gross written premiums	$	1,009,264		$	704,643		$	2,923,587		$	2,328,733
Net written premiums		732,832			511,829			2,123,311			1,693,603
Premiums earned	$	679,949		$	536,554		$	1,927,933		$	1,628,297
Incurred losses and LAE		508,103			401,162			1,365,619			1,212,699
Commission and brokerage		93,256			72,081			258,033			229,224
Other underwriting expenses		95,802			87,542			279,817			250,695
Underwriting gain (loss)	$	(17,213)		$	(24,231)		$	24,465		$	(64,321)

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)	2021			2020			2021			2020
Underwriting gain (loss)	$	(323,383)		$	(114,606)		$	(4,541)		$	(35,071)
Net investment income		292,759			234,233			960,267			420,116
Net realized capital gains (losses)		(4,222)			110,203			138,789			84,263
Corporate expenses		(17,817)			(10,618)			(46,363)			(29,184)
Interest, fee and bond issue cost amortization expense		(15,539)			(6,641)			(46,785)			(21,477)
Other income (expense)		(19,517)			59,937			44,190			47,306
Income (loss) before taxes	$	(87,719)		$	272,508		$	1,045,557		$	465,953

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

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(Dollars in thousands)	2021			2020			2021			2020
United Kingdom gross written premium	$	281,645		$	314,502		$	897,107		$	857,310

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- Definition

Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment.

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