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RETIREMENT PLANS (Detail) (USD $)	12 Months Ended
RETIREMENT PLANS (Detail) (USD $)	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Contribution Plan, Cost Recognized	$ 42,400,000	$ 37,800,000	$ 38,600,000
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense, Amount	(284,900,000)	(372,900,000)	(284,700,000)
United States Pension Plans of US Entity, Defined Benefit [Member]
Unfunded projected benefit obligations	3,300,000	3,000,000
Defined Benefit Plan, Fair Value of Plan Assets	25,900,000	25,100,000
UK Plan [Member]
Unfunded projected benefit obligations	3,300,000	3,400,000
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense, Amount		2,700,000
Contribution rates for Employer on pensionable salary	24.60%
Contribution rates for employee on pensionable salary	3.00%
European Plan [Member]
Unfunded projected benefit obligations	72,300,000	66,300,000
Defined Benefit Plan, Fair Value of Plan Assets	34,956,000	33,294,000	29,548,000
Projected Benefit Obligations	$ 14,600,000	$ 16,000,000

The monetary Increase or Decrease in the reporting period in the reserve for costs of settling insured claims and costs incurred in the claims settlement process for the specified cause.

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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