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Balance Sheets Details - Narrative (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Dec. 31, 2023
Other Liabilities Disclosure [Abstract]    
Prepaid expense, current $ 2.1 $ 4.6
Asset, held-for-sale, not part of disposal group 0.1  
Other assets, current $ 0.9 $ 0.6