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Property, Plant, and Equipment, net
3 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment, net
7. Property, Plant and Equipment, net

Property, plant and equipment consists of the following (in millions):

March 31,
2021
December 31,
2020
 
Equipment, furniture and fixtures, and software$114.6 $113.7 
Building and leasehold improvements41.2 41.0 
Land24.1 24.1 
Plant and transportation equipment4.6 4.4 
Construction in progress4.4 3.1 
188.9 186.3 
Less: Accumulated depreciation78.2 73.5 
Total$110.7 $112.8 

Depreciation expense was $4.7 million and $5.1 million for the three months ended March 31, 2021 and 2020, respectively. These amounts included $2.3 million and $2.3 million of depreciation expense recognized within cost of revenue for each of the three months ended March 31, 2021 and 2020.