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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)
12 Months Ended
Dec. 31, 2020
Equity [Abstract]  
Schedule of Components of Accumulated Other Comprehensive Loss The following summary sets forth the components of accumulated other comprehensive loss, net of tax:
December 31,
20202019
 (In thousands)
Cumulative translation adjustments$(146,529)$(162,243)
Net actuarial loss and prior service cost(655,040)(667,459)
Unrealized gain (loss) from cash flow hedges(15,636)(6,789)
Accumulated other comprehensive loss$(817,205)$(836,491)