Quarterly report pursuant to Section 13 or 15(d)

Change by Component (Details)

v3.21.2
Change by Component (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance $ 1,277,126  
Ending balance 707,316  
Discontinued Operations    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Disposal of business (8,036)  
Total    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (15,265) $ (15,348)
Other comprehensive income before reclassifications 13,776 (18,069)
Amounts reclassified from accumulated other comprehensive income 341 891
Ending balance (9,184) (32,526)
Defined benefit and other postretirement plans     
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance 5,278 3,568
Other comprehensive income before reclassifications 877 0
Amounts reclassified from accumulated other comprehensive income 128 (48)
Ending balance 10,026 3,520
Net gain (loss) from hedging activities    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (660) (1,838)
Other comprehensive income before reclassifications 1,425 (28)
Amounts reclassified from accumulated other comprehensive income 213 939
Ending balance 978 (927)
Foreign currency translation     
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance (19,883) (17,078)
Other comprehensive income before reclassifications 11,474 (18,041)
Amounts reclassified from accumulated other comprehensive income 0 0
Ending balance (20,188) $ (35,119)
Accumulated Defined Benefit Plans Adjustment Member | Discontinued Operations    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Disposal of business 3,743  
Accumulated Gain Loss Net Cash Flow Hedge | Discontinued Operations    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Disposal of business 0  
Accumulated Translation Adjustment Member | Discontinued Operations    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Disposal of business $ (11,779)