INCOME TAXES (TAX RATE RECONCILIATION TABLE) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective tax rate reconciliation
Income tax per U.S. federal statutory rate (21%, 21%, 21%)	$ 43,655	$ 35,756	$ 23,186
State income taxes, net of federal deduction	4,588	6,923	3,144
Change in valuation allowances	12,567	3,903	9,832
Foreign income taxes at different rates than the U.S.	(1,416)	(783)	(3,356)
Foreign withholding taxes	(93)	106	600
Losses in international markets without tax benefits		(1,656)	(2,651)
Nondeductible compensation under Section 162(m)	1,494	656	668
Taxed related to equity compensation	(4,282)	(587)	(976)
Liabilities for uncertain tax positions	(790)	2,882	661
Permanent difference related to foreign exchange gains	3,362	(71)	36
(Income)/losses of foreign branch operations	(187)	(10)	55
Non-taxable earnings of minority interest	(3,085)	(1,964)	(1,294)
Foreign dividend less foreign tax credits	(1,142)	(1,723)	(1,681)
Decrease (increase) to deferred tax asset - change in state tax rate		(48)	(2,848)
State and federal income tax credits and NOLs	(4,531)	(3,918)	(1,176)
Foreign earnings taxed currently in U.S.	1,930	1,936	2,172
Taxes related to prior year filings	(1,192)	(1,718)	(1,643)
Tax related to acquisition accounting		1,317	978
Other	(1,183)	(64)	(30)
Income Tax Expense (Benefit), Total	$ 49,695	$ 40,937	$ 25,677
Effective income tax rate	23.90%	24.00%	23.30%