Common stock shares covered under capped call transactions.

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- Definition

Cost of purchased capped calls.

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- Definition

Principal amount of notes used in conversion rate.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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

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- Definition

The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

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The strike price on the price risk option contract such as a put option or a call option.

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Date the credit facility terminates, in YYYY-MM-DD format.

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

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Debt - Additional Information (Details)		1 Months Ended	9 Months Ended
Debt - Additional Information (Details)	Nov. 27, 2017	Jan. 31, 2021 USD ($) $ / shares shares	Oct. 31, 2022 USD ($) $ / shares shares	Jan. 31, 2022 USD ($)
Convertible Senior Notes \| 0.00% Convertible Senior Notes Due January 15, 2026
Debt Instrument [Line Items]
Aggregate principal amount		$ 345,000,000.0	$ 345,000,000	$ 345,000,000
Debt instrument interest rate stated percentage		0.00%
Debt instrument due date		Jan. 15, 2026
Principal amount of notes used in conversion rate		$ 1,000
Conversion rate per $1,000 principal amount of notes \| shares		38.7962
Conversion price per share of common stock \| $ / shares		$ 25.78
Debt instrument, effective interest rate			0.56%
Strike price \| $ / shares			25.80
Initial cap prices \| $ / shares			35.58
Common stock shares covered under capped call transactions \| shares			13,400,000
Cost of purchased capped calls			$ 27,800,000
Total debt outstanding with carrying amount			338,878,000	337,463,000
Wells Fargo Bank \| Revolving Credit Facility \| Secured Debt \| November 2017 Facility
Debt Instrument [Line Items]
Line of credit facility, termination date	Nov. 27, 2017
Total debt outstanding with carrying amount			$ 30,000,000.0	$ 30,000,000.0