EQUITY ROLL FORWARD (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Common Stock, Dividends, Per Share, Cash Paid	$ 0.250	$ 0.225	$ 0.500	$ 0.450
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance			$ 1,209,148
Net income	$ 59,331	$ 60,160	92,423	$ 97,736
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(21)		(21)
Equity, ending balance	1,224,896		1,224,896
Temporary equity, beginning balance	1,109	633	1,145	620
Net income	46	268	10	281
Temporary Equity, Foreign Currency Translation Adjustments	0	0	0	0
Temporary equity, ending balance	1,134	901	1,134	901
Common Stock
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	4,609	4,614	4,607	4,619
Stock Issued During Period, Value, New Issues	0	15	7	22
Stock Repurchased and Retired During Period, Value	(40)	(9)	(50)	(27)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	6	6	11	12
Equity, ending balance	4,575	4,626	4,575	4,626
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	352,797	332,263	344,717	325,426
Stock Issued During Period, Value, New Issues	252	6,057	4,295	8,988
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	2,967	2,492	7,004	6,398
Equity, ending balance	356,016	340,812	356,016	340,812
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	1,090,874	980,114	1,078,512	969,261
Net income	59,099	59,600	92,058	96,925
Dividends, Common Stock, Cash	(11,564)	(10,432)	(23,124)	(20,872)
Stock Repurchased and Retired During Period, Value	(39,124)	(8,399)	(48,161)	(24,431)
Equity, ending balance	1,099,285	1,020,883	1,099,285	1,020,883
Accumulated Other Comprehensive Income/(Loss)
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	(227,855)	(224,560)	(221,114)	(231,448)
Currency translation adjustment	(10,284)	4,482	(17,458)	10,953
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	434	416	867	833
Equity, ending balance	(237,705)	(219,662)	(237,705)	(219,662)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	2,554	2,537	2,426	2,276
Net income	186	292	355	530
Currency translation adjustment	(15)	13	(56)	36
Equity, ending balance	2,725	2,842	2,725	2,842
Total Equity
Increase (Decrease) in Stockholders' Equity
Equity, beginning balance	1,222,979	1,094,968	1,209,148	1,070,134
Net income	59,285	59,892	92,413	97,455
Dividends, Common Stock, Cash	(11,564)	(10,432)	(23,124)	(20,872)
Stock Issued During Period, Value, New Issues	252	6,072	4,302	9,010
Stock Repurchased and Retired During Period, Value	(39,164)	(8,408)	(48,211)	(24,458)
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	2,973	2,498	7,015	6,410
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	0		0
Currency translation adjustment	(10,299)	4,495	(17,514)	10,989
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	434	416	867	833
Equity, ending balance	$ 1,224,896	$ 1,149,501	$ 1,224,896	$ 1,149,501