Quarterly report pursuant to Section 13 or 15(d)

Change by Component (Details)

v3.21.1
Change by Component (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 1,277,126  
Ending balance 1,187,223  
Total    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (15,265) $ (15,348)
Other comprehensive income (loss) before reclassifications (2,870) (43,853)
Amounts reclassified from accumulated other comprehensive income 125 442
Ending balance (18,010) (58,759)
Defined benefit and other postretirement plans     
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 5,278 3,568
Other comprehensive income (loss) before reclassifications (86) (2)
Amounts reclassified from accumulated other comprehensive income 43 (13)
Ending balance 5,235 3,553
Net gain (loss) from hedging activities    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (660) (1,838)
Other comprehensive income (loss) before reclassifications 683 (984)
Amounts reclassified from accumulated other comprehensive income 82 455
Ending balance 105 (2,367)
Foreign currency translation     
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (19,883) (17,078)
Other comprehensive income (loss) before reclassifications (3,467) (42,867)
Amounts reclassified from accumulated other comprehensive income 0 0
Ending balance $ (23,350) $ (59,945)