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Other Balance Sheet Details - Inventory (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Other Balance Sheet Details [Abstract]    
Raw materials $ 18.1 $ 21.5
Work in process 12.0 9.7
Finished goods 7.5 12.3
Inventory, gross 37.6 43.5
Less inventory reserves (0.4) (5.2)
Total inventory $ 37.2 $ 38.3