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Property, Plant, and Equipment
12 Months Ended
Dec. 31, 2022
Property, Plant, and Equipment  
Property, Plant, and Equipment

Note 6 — Property, Plant, and Equipment

Property, plant, and equipment, net, consist of the following:

December 31,

December 31,

    

2022

    

2021

    

Average Useful Life

(in thousands)

Land

$

5,061

$

5,061

N/A

Building and improvements

 

64,198

 

63,946

1040 years

Machinery and equipment (1)

 

155,533

 

145,656

310 years

Leasehold improvements

 

54,764

 

45,979

317 years

Gross property, plant, and equipment

 

279,556

 

260,642

Less: accumulated depreciation and amortization

 

172,275

 

160,899

Net property, plant, and equipment

$

107,281

$

99,743

(1)Machinery and equipment also includes software, furniture, and fixtures

Depreciation expense was $15.6 million, $13.8 million, and $15.4 million for the years ended December 31, 2022, 2021, and 2020, respectively.