Reinsurance (Tables)

6 Months Ended

Jun. 30, 2016

Reinsurance Disclosures [Abstract]

Effect Of Reinsurance And Retrocessional Reinsurance On Premiums Written And Earned

The following tables summarize the effect of reinsurance and retrocessional reinsurance on premiums written and earned.

	Quarter Ended June 30,
	2016						2015
(dollars in thousands)	Written			Earned			Written			Earned
Direct	$	957,244		$	865,943		$	951,885		$	875,376
Assumed	320,405			295,868			313,901			304,324
Ceded	(227,103		)	(210,952		)	(231,442		)	(222,143		)
Net premiums	$	1,050,546		$	950,859		$	1,034,344		$	957,557

	Six Months Ended June 30,
	2016						2015
(dollars in thousands)	Written			Earned			Written			Earned
Direct	$	1,836,332		$	1,733,387		$	1,753,465		$	1,719,946
Assumed	833,980			585,931			764,794			617,159
Ceded	(437,806		)	(410,773		)	(448,485		)	(435,898		)
Net premiums	$	2,232,506		$	1,908,545		$	2,069,774		$	1,901,207