Liability for Unpaid Loss and Loss Adjustment Expense (Tables)

12 Months Ended

Dec. 31, 2012

Liability for Unpaid Loss and Loss Adjustment Expense

Rollforward of Liability for Unpaid Loss and Loss Adjustment Expense

	2012		2011		2010
Reserves for loss and loss adjustment expense payable at beginning of year	$	3,658,317	$	3,471,858	$	3,492,309
Less reinsurance recoverables on reserves		974,834		934,086		936,469
Net reserves at beginning of year		2,683,483		2,537,772		2,555,840
Net reserve additions from acquired businesses		14,705		6,261		8,110
Foreign currency adjustment		18,449		(6,108)		(21,127)
Net loss and loss adjustment expense:
Provision for loss and loss adjustment expense for claims occurring in current
year		1,375,522		1,389,100		1,235,692
Increase (decrease) in estimated loss and loss adjustment expense for
claims occurring in prior years		(70,011)		10,147		(22,663)
Net loss and loss adjustment expense		1,305,511		1,399,247		1,213,029
Net loss and loss adjustment expense payments for claims occurring during:
Current year		543,010		527,244		454,940
Prior years		729,335		726,445		763,140
Net loss and loss adjustment expense payments		1,272,345		1,253,689		1,218,080
Net reserves at end of year		2,749,803		2,683,483		2,537,772
Plus reinsurance recoverables on reserves		1,018,047		974,834		934,086
Loss and loss adjustment expense payable at end of year	$	3,767,850	$	3,658,317	$	3,471,858