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Property, Plant and Equipment, net
 6 Months Ended
Jun. 30, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, net
5. Property, Plant and Equipment, net
 June 30, 2022December 31, 2021
Land$63,198 $63,656 
Buildings and improvements586,545 582,314 
Machinery, equipment and other1,844,918 1,816,473 
Property, plant and equipment, gross2,494,661 2,462,443 
Accumulated depreciation(1,530,881)(1,505,133)
Property, plant and equipment, net$963,780 $957,310 

Depreciation expense totaled $36,573 and $36,045 for the three months ended June 30, 2022 and 2021, respectively. For the six months ended June 30, 2022 and 2021, depreciation expense totaled $74,385 and $74,239, respectively.