EQUITY ROLL FORWARD (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Common Stock, Dividends, Per Share, Cash Paid	$ 0.225	$ 0.195
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	$ 1,070,134
Net income	37,576	$ 30,119
Equity, ending balance	1,094,968
Temporary equity, beginning balance	620	(19)
Net income	13	119
Temporary Equity, Foreign Currency Translation Adjustments	0	6
Temporary equity, ending balance	633	106
Common Stock
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	4,619	4,648
Stock Issued During Period, Value, New Issues	7	1
Stock Repurchased and Retired During Period, Value	(18)	(23)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	6	9
Equity, ending balance	4,614	4,635
Additional Paid in Capital
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	325,426	310,617
Stock Issued During Period, Value, New Issues	2,931	342
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	3,906	3,976
Equity, ending balance	332,263	314,935
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	969,261	859,817
Net income	37,325	29,765
Dividends, Common Stock, Cash	(10,440)	(9,129)
Stock Repurchased and Retired During Period, Value	(16,032)	(19,297)
Equity, ending balance	980,114	861,156
Pension and Other Post Retirement Plans
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	(40,236)	(49,076)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	417	932
Equity, ending balance	(39,819)	(48,144)
Cumulative Translation Adjustment
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	(191,212)	(179,505)
Currency translation adjustment	6,471	8,630
Equity, ending balance	(184,741)	(170,875)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	2,276	2,161
Net income	238	235
Currency translation adjustment	23	(44)
Equity, ending balance	2,537	2,352
Total Equity
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	1,070,134	948,662
Net income	37,563	30,000
Dividends, Common Stock, Cash	(10,440)	(9,129)
Stock Issued During Period, Value, New Issues	2,938	343
Stock Repurchased and Retired During Period, Value	(16,050)	(19,320)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	3,912	3,985
Currency translation adjustment	6,494	8,586
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	417	932
Equity, ending balance	$ 1,094,968	$ 964,059