Debt - Summary of Interest Expense Recognized Related to Convertible Senior Notes (Detail) - Convertible Senior Notes [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Debt Instrument [Line Items]
Contractual interest expense	$ 0.3	$ 0.3	$ 0.7	$ 0.6
Amortization of debt issuance costs	0.7	0.7	1.4	1.4
Total	$ 1.0	$ 1.0	$ 2.1	$ 2.0