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Property, Plant and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
 
Property, plant and equipment, net, at December 31 consisted of:
20222021
Land$18,018 $18,476 
Buildings184,909 187,012 
Machinery and equipment704,053 699,407 
906,980 904,895 
Less accumulated depreciation(586,841)(563,433)
$320,139 $341,462 
Depreciation expense was $47,163, $47,600 and $46,590 during 2022, 2021 and 2020, respectively.