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RETIREMENT BENEFIT PLANS (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Losses recognized within accumulated other comprehensive loss	$ 9,000,000.0	$ 600,000
Accumulated benefit obligation	61,100,000	49,600,000
Fair value of plan assets	30,770,000	31,103,000	$ 26,943,000
Plan assets expected to be returned next twelve months	0
Contributions expected to be paid to plan	2,100,000
Total contributions made	8,600,000	$ 8,100,000	$ 7,200,000
Austria, France, and Germany
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0

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Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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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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