Convertible Senior Notes - Carrying Amounts and Fair Values of Convertible Notes (Details) - Convertible Debt $ in Thousands	Jan. 31, 2025 USD ($)
Convertible Senior Notes Due 2027
Debt Instrument [Line Items]
Principal	$ 1,150,000
Unamortized Debt Issuance Costs	13,890
Net Carrying Value	1,136,110
Convertible Senior Notes Due 2027 | Level 2
Debt Instrument [Line Items]
Fair Value	1,509,295
Convertible Senior Notes Due 2029
Debt Instrument [Line Items]
Principal	1,150,000
Unamortized Debt Issuance Costs	14,581
Net Carrying Value	1,135,419
Convertible Senior Notes Due 2029 | Level 2
Debt Instrument [Line Items]
Fair Value	$ 1,539,068