Reserve For Losses And Loss Expenses (Tables)

9 Months Ended

Sep. 30, 2011

Reserve For Losses And Loss Expenses [Abstract]

Schedule Of Reserve For Losses And Loss Expenses

	September 30,		December 31,
	2011		2010
Outstanding loss reserves	$	1,404,996	$	1,166,516
Reserves for losses incurred but not reported		3,840,557		3,712,672
Reserve for losses and loss expenses	$	5,245,553	$	4,879,188

Schedule Of Reconciliation Of Unpaid Losses And Loss Expenses

	For the Three Months Ended						For the Nine Months Ended
	September 30,						September 30,
	2011			2010			2011			2010
Gross liability at beginning of period	$	5,251,304		$	4,920,435		$	4,879,188		$	4,761,772
Reinsurance recoverable at beginning of period		(1,013,951	)		(932,435	)		(927,588	)		(919,991	)
Net liability at beginning of period		4,237,353			3,988,000			3,951,600			3,841,781
Net losses incurred related to:
Commutation of variable-rated reinsurance contracts		—			—			11,529			8,864
Current year		267,070			228,362			895,386			778,424
Prior years		(61,524	)		(101,374	)		(161,104	)		(239,424	)
Total incurred		205,546			126,988			745,811			547,864
Net paid losses related to:
Current year		43,723			37,291			65,002			70,701
Prior years		150,767			135,861			394,363			367,851
Total paid		194,490			173,152			459,365			438,552
Foreign exchange revaluation		(12,499	)		8,033			(2,136	)		(1,224	)
Net liability at end of period		4,235,910			3,949,869			4,235,910			3,949,869
Reinsurance recoverable at end of period		1,009,643			939,956			1,009,643			939,956
Gross liability at end of period	$	5,245,553		$	4,889,825		$	5,245,553		$	4,889,825