Convertible Senior Notes - Schedule of Net Carrying Amount of the Liability Component of the Notes (Details) - 2026 Notes - USD ($) $ in Thousands	Apr. 30, 2022	Jan. 31, 2022
Debt Instrument [Line Items]
Principal	$ 1,149,986	$ 1,149,988
Unamortized debt issuance costs	(12,625)	(13,467)
Net carrying amount	$ 1,137,361	$ 1,136,521

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant