FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair value measurements
Cash and cash equivalents	$ 53,270	$ 105,840
Available for sale securities	272,448	241,407
Trading securities	71,208	89,736
Fair value measured on a recurring basis
Fair value measurements
Cash and cash equivalents	53,270	105,840
Available for sale securities	272,448	241,407
Trading securities	71,208	89,736
Total assets measured at fair value	396,654	437,533
Fair value measured on a recurring basis \| Foreign currency derivatives.
Fair value measurements
Derivative instruments, net	(282)	426
Fair value measured on a recurring basis \| Commodity derivatives
Fair value measurements
Derivative instruments, net	10	124
Fair value measured on a recurring basis \| Level 1
Fair value measurements
Cash and cash equivalents	53,270	105,840
Available for sale securities	1,889	1,282
Trading securities	56,049	76,196
Total assets measured at fair value	111,218	183,442
Fair value measured on a recurring basis \| Level 1 \| Commodity derivatives
Fair value measurements
Derivative instruments, net	10	124
Fair value measured on a recurring basis \| Level 2
Fair value measurements
Available for sale securities	270,559	240,125
Trading securities	15,159	13,540
Total assets measured at fair value	285,436	254,091
Fair value measured on a recurring basis \| Level 2 \| Foreign currency derivatives.
Fair value measurements
Derivative instruments, net	$ (282)	$ 426

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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