DERIVATIVE FINANCIAL INSTRUMENTS (Summary Of Derivative Financial Instruments Notional Amounts On Outstanding Positions) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Derivatives - Fair Value [Line Items]
Notional	$ 143,744	$ 134,287
Fair Value	(993)	111
Euro
Derivatives - Fair Value [Line Items]
Notional	27,818	46,757
Fair Value	(82)	36
Singapore Dollar
Derivatives - Fair Value [Line Items]
Notional	37,416	31,255
Fair Value	(1,730)	344
Japanese Yen
Derivatives - Fair Value [Line Items]
Notional	28,022	11,823
Fair Value	(517)	63
South Korean Won
Derivatives - Fair Value [Line Items]
Notional	22,453	10,328
Fair Value	458	(82)
British Pound Sterling
Derivatives - Fair Value [Line Items]
Notional	4,816	9,155
Fair Value	192	(104)
Other currencies
Derivatives - Fair Value [Line Items]
Notional	23,219	24,969
Fair Value	$ 686	$ (146)