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Interim Financial Information - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Quarterly Financial Information Disclosure [Abstract]        
Research and development costs $ 1.6 $ 2.5 $ 3.0 $ 4.5
Patent-related expenses $ 0.1 $ 0.1 $ 0.2 $ 0.2