ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (325,274)	$ (288,447)	$ (288,447)
Other comprehensive income (loss) before reclassifications	(49,777)		(16,765)
Amounts reclassified from accumulated other comprehensive loss	4,183		6,195
Other comprehensive income (loss), net of tax	(45,594)	9,925	(10,570)
Ending balance	(370,868)		(325,274)
Foreign Currency Translation Adjustments, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(130,019)	(147,148)	(147,148)
Other comprehensive income (loss) before reclassifications	(50,275)		18,447
Amounts reclassified from accumulated other comprehensive loss	0		0
Other comprehensive income (loss), net of tax	(50,275)		18,447
Ending balance	(180,294)		(130,019)
Total Pension and Postretirment Adjustments, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(195,255)	$ (141,299)	(141,299)
Other comprehensive income (loss) before reclassifications	498		(35,212)
Amounts reclassified from accumulated other comprehensive loss	4,183		6,195
Other comprehensive income (loss), net of tax	4,681		(29,017)
Ending balance	(190,574)		(195,255)
Accounting Standards Update 2018-02 [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(26,257)
Ending balance			(26,257)
Accounting Standards Update 2018-02 [Member] | Foreign Currency Translation Adjustments, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(1,318)
Ending balance			(1,318)
Accounting Standards Update 2018-02 [Member] | Total Pension and Postretirment Adjustments, Net [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ (24,939)
Ending balance			$ (24,939)