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Property, Plant, Equipment – Net
12 Months Ended
Dec. 31, 2024
Property, Plant and Equipment [Abstract]  
Property, Plant, Equipment – Net Property, Plant, Equipment – Net
 December 31,
 20242023
Land and improvements
$11,761 $11,761 
Machinery and equipment
1,698,835 1,621,636 
Buildings and improvements
244,761 228,379 
Construction in progress
95,053 66,875 
 2,050,410 1,928,651 
Less – accumulated depreciation
(1,132,552)(1,076,009)
Total property, plant, equipment – net
$917,858 $852,642 

Capitalized interest was $5,666, $3,375 and $2,589 for the years ended December 31, 2024, 2023 and 2022, respectively.

Depreciation expense was $70,750, $67,528 and $64,087 for the years ended December 31, 2024, 2023 and 2022, respectively.