Quarterly report pursuant to Section 13 or 15(d)

Change by Component (Details)

v3.21.2
Change by Component (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 1,277,126  
Ending balance 1,205,349  
Total    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (15,265) $ (15,348)
Other comprehensive income (loss) before reclassifications 9,116 (32,396)
Amounts reclassified from accumulated other comprehensive income 220 1,030
Ending balance (5,929) (46,714)
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 (170) (1)
Amounts reclassified from accumulated other comprehensive income 85 (27)
Ending balance 5,193 3,540
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 1,043 (1,091)
Amounts reclassified from accumulated other comprehensive income 135 1,057
Ending balance 518 (1,872)
Foreign currency translation     
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (19,883) (17,078)
Other comprehensive income (loss) before reclassifications 8,243 (31,304)
Amounts reclassified from accumulated other comprehensive income 0 0
Ending balance $ (11,640) $ (48,382)