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Property, Plant, and Equipment, Net
 3 Months Ended
Mar. 31, 2024
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment, Net Property, Plant and Equipment, Net
Property, plant and equipment, net consist of the following (in millions):
 Depreciable
Lives		 March 31, 2024December 31, 2023
Land, buildings, and leasehold improvements
3-39 years
 $49.9 $49.4 
Machinery and equipment
5-15 years
 39.6 38.5 
Badges
3-5 years
 44.2 41.0 
Furniture, fixtures, computer equipment and other
3-10 years
 22.9 22.9 
Software development costs
3-5 years
11.0 10.7 
Construction in progress (1)
— 32.5 28.6 
   200.1 191.1 
Less: accumulated depreciation and amortization  (61.8)(56.6)
   $138.3 $134.5 
(1) Includes $5.6 million and $4.2 million of Construction in progress for internally developed software as of March 31, 2024, and December 31, 2023, respectively.
Total depreciation expense included in costs of revenues and operating expenses was as follows (in millions):
Three Months EndedThree Months Ended
March 31, 2024March 31, 2023
Depreciation expense in:
Cost of revenues$5.3 $4.7 
Operating expenses$2.0 $2.9