RETIREMENT BENEFIT PLANS (Schedule of Change in Benefit Obligations and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Change In Projected Benefit Obligations
Projected benefit obligations, beginning of year	$ 65,184	$ 72,869
Interest cost	194	100
Service cost	2,419	2,741
Actuarial (gain) loss	(14,822)	(5,044)
Plan amendments	(390)	(586)
Plan settlements	(20)	(655)
Employee contribution	999	917
Premiums paid	(391)	(373)
Benefit payment	(999)	(2,128)
Effect of foreign currency exchange rates	(1,810)	(2,657)
Projected benefit obligations, end of year	50,364	65,184
Change In Plan Assets
Plan assets at fair value, beginning of year	39,914	37,825
Actual return on plan assets	(2,863)	3,371
Employer contributions	2,356	2,254
Employee contributions	999	917
Plan settlements	0	(633)
Benefits paid	(998)	(2,128)
Premiums paid	(391)	(373)
Effect of foreign currency exchange rates	(964)	(1,319)
Plan assets at fair value, end of year	$ 38,053	$ 39,914