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Property, Plant and Equipment
 9 Months Ended
Sep. 30, 2023
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment 10. Property, Plant and Equipment:
A summary of property, plant and equipment, at cost, and related accumulated depreciation is as follows:
September 30,
2023		December 31,
2022
Land $96,686 $96,659 
Buildings and improvements83,346 82,061 
Machinery and equipment 802,823 751,145 
Construction in progress 47,974 56,448 
1,030,829 986,313 
Less: accumulated depreciation (450,020)(401,424)
$580,809 $584,889 
Depreciation expense was $17,773 and $51,920 for the three and nine months ended September 30, 2023, respectively. Depreciation expense was $16,103 and $48,256 for the three and nine months ended September 30, 2022, respectively.