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Fair Value of Financial Instruments - Additional Information (Details) - USD ($)	1 Months Ended		12 Months Ended
	Sep. 30, 2024	Jan. 31, 2021	Jan. 31, 2025	Jan. 31, 2024
Derivative [Line Items]
Certificates of deposit				$ 30,000,000
Foreign Currency Forward Contracts | Not Designated as Hedging Instruments
Derivative [Line Items]
Derivative, notional amount			$ 67,600,000	0
Recognized gains (losses) of derivative			0
Foreign Currency Forward Contracts | Not Designated as Hedging Instruments | Other Current Assets
Derivative [Line Items]
Gross fair value of derivative			0
0.00% Convertible Notes Due 2026 | Senior Notes
Derivative [Line Items]
Debt instrument interest rate stated percentage		0.00%
Debt instrument maturity date		Jan. 15, 2026
Aggregate principal amount		$ 345,000,000
1.50% Convertible Note Due 2029 | Senior Notes
Derivative [Line Items]
Debt instrument interest rate stated percentage	1.50%
Debt instrument maturity date	Sep. 15, 2029
Aggregate principal amount	$ 460,000,000
2026 Convertible Notes
Derivative [Line Items]
Convertible senior notes, fair value			260,200,000	$ 392,100,000
Repurchase of aggregate principal amount	$ 140,000,000
2029 Convertible Notes
Derivative [Line Items]
Convertible senior notes, fair value			$ 458,100,000

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- Definition

A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Fair value amount of debt instrument that was repurchased.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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