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Convertible Senior Notes - Schedule of Interest Expense (Detail) - 0.375% Convertible Senior Notes Due 2025 [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Contractual interest expense	$ 431	$ 431	$ 1,291	$ 1,291
Amortization of issuance costs	497	492	1,477	1,465
Total interest expense	$ 928	$ 923	$ 2,768	$ 2,756

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