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Inventory (Tables)
9 Months Ended
Sep. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consists of the following:

 

  

September 30,

2022

  

December 31,

2021

 
   (in millions) 
Component parts  $16.7   $10.8 
Work in progress   1.6    1.6 
Finished goods   6.9    4.5 
Total inventories  $25.2   $16.9