v3.26.1
Condensed Consolidated Statements of Changes in Retained Earnings, Accumulated Other Comprehensive Loss - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Net income $ 71,269 $ 59,605
Pension and post-retirement plan adjustments, net of tax 328 201
Unrecognized net loss on cash flow hedges (Note 17) (155) 0
Preferred dividends (10) (10)
Retained Earnings    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance 1,546,230 1,349,650
Net income 71,269 59,605
Common dividends (20,551) (20,023)
Preferred dividends (10) (10)
Ending balance 1,596,938 1,389,222
Accumulated Other Comprehensive (Loss)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance (41,781) (141,649)
Foreign currency translation adjustments (6,074) 22,537
Pension and post-retirement plan adjustments, net of tax 328 201
Ending balance $ (47,682) $ (118,911)