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DERIVATIVE INSTRUMENTS (DETAILS) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Asset Derivative Fair Value	$ 40,163	$ 6,641
Liability Derivative Fair Value	11,447	14,986
Currency Collar Options [Member] \| Not Designated as Hedging Instruments [Member] \| Underwriting Portfolio [Member]
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Asset Derivative Fair Value	351	0
Liability Derivative Fair Value	0	0
Derivative Notional Amount	15,312	0
Foreign Exchange Contracts [Member] \| Designated As Hedging Instrument [Member] \| Fair Value Hedge [Member]
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Asset Derivative Fair Value	8,512	0
Liability Derivative Fair Value	0	13,748
Derivative Notional Amount	522,480	612,845
Foreign Exchange Contracts [Member] \| Not Designated as Hedging Instruments [Member] \| Investment Portfolio [Member]
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Asset Derivative Fair Value	10,590	2,182
Liability Derivative Fair Value	338	746
Derivative Notional Amount	279,910	154,990
Foreign Exchange Contracts [Member] \| Not Designated as Hedging Instruments [Member] \| Underwriting Portfolio [Member]
Derivative Fair Values on Consolidated Balance Sheet [Line Items]
Asset Derivative Fair Value	20,710	4,459
Liability Derivative Fair Value	11,109	492
Derivative Notional Amount	$ 858,271	$ 110,564

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References+ Details

- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References+ Details