v3.26.3
ACCUMULATED OTHER COMPREHENSIVE LOSS (Changes in Components of AOCI, Net of Related Taxes) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning $ 2,265,335 $ 1,899,779 $ 2,020,277 $ 1,856,048
Balance, ending 2,365,615 1,933,787 2,365,615 1,933,787
Accumulated Other Comprehensive Loss        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning (11,327) (10,146) (10,840) (7,861)
Current period change, excluding amounts reclassified from accumulated other comprehensive income/(loss) 4,562 348 4,155 (850)
Amounts reclassified from accumulated other comprehensive income/(loss) (76) (646) (156) (1,733)
Balance, ending (6,841) (10,444) (6,841) (10,444)
Unrealized gains on cash flow hedges        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning 1,377 3,566 2,093 5,176
Current period change, excluding amounts reclassified from accumulated other comprehensive income/(loss) 4,540 79 4,699 68
Amounts reclassified from accumulated other comprehensive income/(loss) (340) (908) (1,215) (2,507)
Balance, ending 5,577 2,737 5,577 2,737
Items not yet recognized as a component of net periodic benefit cost        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning (12,449) (13,712) (12,933) (13,037)
Current period change, excluding amounts reclassified from accumulated other comprehensive income/(loss)   269 (311) (918)
Amounts reclassified from accumulated other comprehensive income/(loss) 264 262 1,059 774
Balance, ending (12,185) $ (13,181) (12,185) $ (13,181)
Foreign currency translation adjustment        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Balance, beginning (255)      
Current period change, excluding amounts reclassified from accumulated other comprehensive income/(loss) 22   (233)  
Balance, ending $ (233)   $ (233)