Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Change by Component (Details)

v3.22.0.1
Stockholders' Equity - Change by Component (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Beginning balance $ 1,277,126  
Ending balance 740,737 $ 1,277,126
Discontinued Operations    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Disposal of business 9,846 (14,575)
Total     
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Beginning balance (15,265) (15,348)
Other comprehensive loss before reclassifications 18,814 (14,621)
Amounts reclassified from accumulated other comprehensive income 505 129
Total other comprehensive income (loss) 9,473 83
Ending balance (5,792) (15,265)
Defined benefit and other postretirement plans    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Beginning balance 5,278 3,568
Other comprehensive loss before reclassifications 5,623 1,850
Amounts reclassified from accumulated other comprehensive income 171 88
Total other comprehensive income (loss) 5,794 1,710
Ending balance 11,072 5,278
Defined benefit and other postretirement plans, disposal of business | Discontinued Operations    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Disposal of business 0 228
Net gain (loss) from hedging activities    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Beginning balance (660) (1,838)
Other comprehensive loss before reclassifications 2,580 125
Amounts reclassified from accumulated other comprehensive income 334 41
Total other comprehensive income (loss) 2,914 1,178
Ending balance 2,254 (660)
Net gain (loss) from hedging activities, disposal of business | Discontinued Operations    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Disposal of business 0 (1,012)
Foreign currency translation    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Beginning balance (19,883) (17,078)
Other comprehensive loss before reclassifications 10,611 (16,596)
Amounts reclassified from accumulated other comprehensive income 0 0
Total other comprehensive income (loss) 765 (2,805)
Ending balance (19,118) (19,883)
Foreign currency translation, disposal of business | Discontinued Operations    
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax    
Disposal of business $ 9,846 $ (13,791)