ACCUMULATED OTHER COMPREHENSIVE LOSS - Amounts Included in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss)
Beginning balance	$ 1,562,696	$ 1,252,873
Other comprehensive loss before reclassifications	(86,757)	(8,197)	$ (10,388)
Amounts reclassified from accumulated other comprehensive loss	1,275	9,322	9,177
Other comprehensive income (loss)	(85,482)	1,125	(1,211)
Ending balance	1,718,256	1,562,696	1,252,873
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(259,828)	(260,953)	(259,742)
Ending balance	(345,310)	(259,828)	(260,953)
Unrecognized Net Defined Benefit Plan Costs
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(119,474)	(168,604)	(139,102)
Other comprehensive loss before reclassifications	(39,174)	41,422	(36,660)
Amounts reclassified from accumulated other comprehensive loss	1,915	7,708	7,158
Other comprehensive income (loss)	(37,259)	49,130	(29,502)
Ending balance	(156,733)	(119,474)	(168,604)
Change in Fair Value of Derivatives
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(2,327)	(4,656)	(3,182)
Other comprehensive loss before reclassifications	2,195	715	(3,493)
Amounts reclassified from accumulated other comprehensive loss	(640)	1,614	2,019
Other comprehensive income (loss)	1,555	2,329	(1,474)
Ending balance	(772)	(2,327)	(4,656)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss)
Beginning balance	(138,027)	(87,693)	(117,458)
Other comprehensive loss before reclassifications	(49,778)	(50,334)	29,765
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Other comprehensive income (loss)	(49,778)	(50,334)	29,765
Ending balance	$ (187,805)	$ (138,027)	$ (87,693)