RESERVE FOR LOSSES AND LOSS EXPENSES (TABLES)

6 Months Ended

Jun. 30, 2012

Insurance Loss Reserves [Abstract]

RECONCILIATION OF BEGINNING AND ENDING GROSS RESERVE FOR LOSSES AND LOSS EXPENSES AND NET RESERVE FOR UNPAID LOSSES AND LOSS EXPENSES [Table Text Block]

Six months ended June 30,	2012			2011
Gross reserve for losses and loss expenses, beginning of period	$	8,425,045		$	7,032,375
Less reinsurance recoverable on unpaid losses, beginning of period	(1,736,823		)	(1,540,633		)
Net reserve for unpaid losses and loss expenses, beginning of period	6,688,222			5,491,742
Net incurred losses and loss expenses related to:
Current year	1,098,168			1,686,013
Prior years	(119,840		)	(101,254		)
	978,328			1,584,759
Net paid losses and loss expenses related to:
Current year	(90,041		)	(84,858		)
Prior years	(731,363		)	(472,454		)
	(821,404		)	(557,312		)
Foreign exchange and other	(10,129		)	126,056
Net reserve for unpaid losses and loss expenses, end of period	6,835,017			6,645,245
Reinsurance recoverable on unpaid losses, end of period	1,765,634			1,757,367
Gross reserve for losses and loss expenses, end of period	$	8,600,651		$	8,402,612

NET PRIOR YEAR RESERVE DEVELOPMENT BY SEGMENT [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2012		2011		2012		2011
Insurance	$	35,394	$	26,754	$	50,289	$	41,481
Reinsurance	39,218		24,796		69,551		59,773
Total	$	74,612	$	51,550	$	119,840	$	101,254