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Convertible Senior Notes - Schedule of Net Carrying Amount of Liability Component (Detail) - 0.375%Convertible Senior Notes Due 2025 as Liability Component [Member] - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Principal $ 459,078 $ 459,083
Unamortized issuance costs (3,379) (4,856)
Net carrying amount $ 455,699 $ 454,227