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RETIREMENT BENEFIT PLANS (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) recognized within accumulated other comprehensive loss	$ (6,600,000)	$ 7,400,000
Accumulated benefit obligation	62,800,000	46,400,000
Benefit plans, assets	45,724,000	38,053,000	$ 39,914,000
Contributions expected to be paid to plan	3,000,000
Total contributions made	$ 10,400,000	9,800,000	$ 8,800,000
Defer payment and taxation, base salary, percentage (up to)	75.00%
Defer payment and taxation, bonus and other eligible cash compensation, percentage (up to)	100.00%
Deferred compensation plan, fair value of assets	$ 6,100,000	$ 4,700,000
FRANCE
Defined Benefit Plan Disclosure [Line Items]
Benefit plans, assets	0
GERMANY
Defined Benefit Plan Disclosure [Line Items]
Benefit plans, assets	$ 0

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Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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