ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) - Reclassifications out of Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense	$ (30,284)	$ (33,244)	$ (35,489)
Miscellaneous, net	(3,094)	(7,678)	1,556
Income before Income Taxes	321,655	301,155	342,069
Tax benefit	(78,017)	(87,065)	(99,842)
Net Income	243,638	214,090	242,227
Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Net Income	2,150	15,701	(5,190)
Defined Benefit Pension Plans | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Amortization of net loss	12,424	7,805	3,401
Amortization of prior service cost	166	398	449
Income before Income Taxes	12,590	8,203	3,850
Tax benefit	(3,163)	(1,989)	(977)
Net Income	9,427	6,214	2,873
Derivatives | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Income before Income Taxes	(7,277)	9,487	(8,063)
Tax benefit	0	0	0
Net Income	(7,277)	9,487	(8,063)
Derivatives | Changes in cross currency swap: interest component | Amount Reclassified from Accumulated Other Comprehensive Income
Amount Reclassified from Accumulated Other Comprehensive Income
Interest expense	(13)	(1,474)	(4,805)
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	$ (7,264)	$ 10,961	$ (3,258)