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Property, Plant and Equipment
 12 Months Ended
Dec. 29, 2023
Property, Plant and Equipment [Abstract]  
Property Plant and Equipment Property, Plant and Equipment
Property, plant and equipment were as follows (in thousands):
20232022
Land and improvements$70,382 $65,066 
Buildings and improvements500,373 376,115 
Manufacturing equipment441,824 439,109 
Office, warehouse and automotive equipment61,594 59,988 
Additions in progress132,609 126,198 
Total property, plant and equipment1,206,782 1,066,476 
Accumulated depreciation(465,069)(458,867)
Net property, plant and equipment$741,713 $607,609 

Depreciation expense was $55.0 million in 2023, $46.0 million in 2022 and $40.0 million in 2021.