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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule Of Underwriting Results For Operating Segments

	Three Months Ended						Six Months Ended
Reinsurance	June 30,						June 30,
(Dollars in thousands)	2021			2020			2021			2020
Gross written premiums	$	2,148,235		$	1,538,348		$	4,207,250		$	3,316,119
Net written premiums		2,059,919			1,424,089			3,972,868			3,037,183
Premiums earned	$	1,920,801		$	1,502,256		$	3,698,253		$	2,987,476
Incurred losses and LAE		1,168,139			1,005,677			2,440,045			2,026,319
Commission and brokerage		473,258			387,339			881,982			757,695
Other underwriting expenses		47,065			39,698			99,061			83,837
Underwriting gain (loss)	$	232,339		$	69,542		$	277,165		$	119,625

	Three Months Ended						Six Months Ended
Insurance	June 30,						June 30,
(Dollars in thousands)	2021			2020			2021			2020
Gross written premiums	$	1,041,905		$	830,990		$	1,914,323		$	1,624,090
Net written premiums		749,492			593,389			1,390,479			1,181,774
Premiums earned	$	637,571		$	540,149		$	1,247,984		$	1,091,743
Incurred losses and LAE		418,002			401,339			857,515			811,537
Commission and brokerage		84,490			78,977			164,777			157,143
Other underwriting expenses		93,779			78,432			184,014			163,153
Underwriting gain (loss)	$	41,300		$	(18,599)		$	41,678		$	(40,090)

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

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Dollars in thousands)	2021			2020			2021			2020
Underwriting gain (loss)	$	273,639		$	50,943		$	318,843		$	79,535
Net investment income		407,095			38,083			667,508			185,883
Net realized capital gains (losses)		104,109			184,648			143,011			(25,940)
Corporate expenses		(16,168)			(8,733)			(28,546)			(18,566)
Interest, fee and bond issue cost amortization expense		(15,607)			(7,253)			(31,246)			(14,836)
Other income (expense)		7,114			(20,621)			63,707			(12,631)
Income (loss) before taxes	$	760,181		$	237,067		$	1,133,276		$	193,445

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

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(Dollars in thousands)	2021			2020			2021			2020
United Kingdom gross written premium	$	249,314		$	236,100		$	615,462		$	542,808

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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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