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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
6. Property, Plant and Equipment

   
December 31,
  
 
  
2022
    
2021
  
 
  
(In thousands)
  
Land, buildings and improvements
  
$
42,651
    
$
40,882
  
Machinery and equipment
    
166,149
      
159,967
  
Tools, dies and auxiliary equipment
    
67,017
      
63,944
  
Furniture and fixtures
    
32,084
      
30,688
  
Leasehold improvements
    
15,083
      
14,081
  
Construction-in-progress
    
23,340
      
21,012
  
Total property, plant and equipment
    
346,324
      
330,574
  
Less accumulated depreciation
    
239,176
      
227,788
  
Total property, plant and equipment, net
  
$
107,148
    
$
102,786
  

Depreciation expense was $19 million in 2022, $18.2 million in 2021 and $17.8 million in 2020.