ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications From Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense	$ (8,011)	$ (8,851)	$ (22,601)	$ (25,973)
Miscellaneous, net	13	(1,040)	(2,978)	(3,375)
Income before Income Taxes	66,234	89,139	241,416	227,843
Tax benefit	(19,340)	(25,404)	(55,309)	(66,998)
Net Income	46,894	63,735	186,107	160,845
Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Net Income	(692)	7,516	824	9,584
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Amortization of net loss	3,066	1,966	9,250	5,836
Amortization of prior service cost	34	101	123	293
Income before Income Taxes	3,100	2,067	9,373	6,129
Tax benefit	(742)	(504)	(2,242)	(1,490)
Net Income	2,358	1,563	7,131	4,639
Derivatives | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Net Income	(3,050)	5,953	(6,307)	4,945
Derivatives | Changes in cross currency swap: interest component | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense	2	(146)	(16)	(1,434)
Derivatives | Changes in cross currency swap: foreign exchange component | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Miscellaneous, net	$ (3,052)	$ 6,099	$ (6,291)	$ 6,379