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Property, Plant and Equipment, Net
 3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment, Net PROPERTY, PLANT AND EQUIPMENT, NET
(in millions)March 31,
2022		December 31,
2021
Leasehold improvements$34.2 $38.0 
Equipment114.9 112.4 
Property, plant and equipment, gross149.1 150.4 
Less accumulated depreciation(103.4)(106.9)
Property, plant and equipment, net$45.7 $43.5 
During the three months ended March 31, 2022, the Company ceased the use of one of its leased Salt Lake City facilities. As a result, the Company recognized a $2.1 million impairment on the property, plant and equipment associated with the lease, which consisted primarily of leasehold improvements. See Note 15 for further discussion.
Three months ended
March 31,
(in millions)20222021
Depreciation expense$2.8 $2.9