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Inventory (Tables)
9 Months Ended
Sep. 30, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consists of the following:

  

September 30,

2023

  

December 31,

2022, as restated

 
   (in millions) 
Component parts  $22.8   $20.7 
Work in progress   1.4    3.6 
Finished goods   15.7    6.0 
Total inventories  $39.9   $30.3