SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue Recognition
Selling, marketing and administrative expenses	$ 132,108	$ 112,117	$ 127,802
Royalty income (as a percent)	0.20%
Rental income (as a percent)	1.00%
Cash and cash equivalents:
Cash and cash equivalents	$ 105,840	166,841
Investments:
Marketable securities, maximum maturity period	3 years
Inventories:
Inventories at cost, last-in, first-out (LIFO) method	$ 51,355	54,935
Excess of current cost over LIFO cost of inventories	21,348	19,339
Foreign inventories at cost, first-in, first-out (FIFO) method	4,150	4,644
Foreign Banks
Cash and cash equivalents:
Cash and cash equivalents	4,577	8,303
Shipping and Handling
Revenue Recognition
Selling, marketing and administrative expenses	$ 55,289	$ 42,593	$ 49,288