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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Reclass) (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Earnings from continuing operations before income taxes $ 79,950 $ 70,489
Reclassification out of Accumulated Other Comprehensive Income [Member] | Total Pension and Postretirment Adjustments, Net [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Amortization of prior service costs 216  
Amortization of actuarial losses (7,143)  
Earnings from continuing operations before income taxes (6,927)  
Provision for income taxes 1,677  
Net earnings $ (5,250)