v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax        
Equity, beginning balance     $ 1,325,368  
Net other comprehensive income/(loss) $ 11,686 $ 26,364 13,625 $ 39,723
Equity, ending balance 1,409,621   1,409,621  
Foreign Currency Translation Adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax        
Equity, beginning balance     (166,200) (215,000)
Other comprehensive income/(loss) before reclassifications     14,000 39,000
Amounts reclassified from accumulated other comprehensive income/(loss) (1)     0 0
Net other comprehensive income/(loss)     14,000 39,000
Equity, ending balance (152,200) (176,000) (152,200) (176,000)
Pension and Post-Retirement Plan Benefit Adjustments        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax        
Equity, beginning balance     8,700 (39,000)
Other comprehensive income/(loss) before reclassifications     0 0
Amounts reclassified from accumulated other comprehensive income/(loss) (1)     (200) 600
Net other comprehensive income/(loss)     (200) 600
Equity, ending balance 8,500 (38,400) 8,500 (38,400)
AOCI Including Portion Attributable to Noncontrolling Interest        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax        
Equity, beginning balance     (157,500) (254,000)
Other comprehensive income/(loss) before reclassifications     14,000 39,000
Amounts reclassified from accumulated other comprehensive income/(loss) (1)     (200) 600
Net other comprehensive income/(loss)     13,800 39,600
Equity, ending balance $ (143,700) $ (214,400) $ (143,700) $ (214,400)