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RETIREMENT BENEFIT PLANS (Schedule of Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Retirement Benefits [Abstract]
Service cost	$ 2,741	$ 4,029
Interest cost	100	219
Expected return on plan assets	(893)	(652)
Amortization of prior service cost (credit)	(281)	(274)
Recognized actuarial losses	186	787
Settlements	51	(102)
Net period benefit cost	$ 1,904	$ 4,007

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