Option Indexed To Issuer's Equity, Transaction Cost

No definition available.

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- Definition

Option Indexed to Issuer's Equity, Conversion Price

+ References

No definition available.

+ Details

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

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Balance Type:	na
Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

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- Definition

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

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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- Definition

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

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- Definition

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

+ References

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from hedging transactions.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from debt issuance costs.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares that could be issued to net share settle a contract, if applicable. If a contract does not have a fixed or determinable maximum number of shares that may be required to be issued, disclose the fact that a potentially infinite number of shares could be issued to settle the contract.

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- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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Convertible Senior Notes and Related Transactions - Narrative (Details) $ / shares in Units, shares in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2019 USD ($) $ / shares shares	Oct. 30, 2021 USD ($) $ / shares shares	Oct. 31, 2020 USD ($) shares	Oct. 30, 2021 USD ($) $ / shares shares	Oct. 31, 2020 USD ($) shares	Jan. 30, 2021 USD ($)
Debt Instrument [Line Items]
Amortization of debt discount				$ 8,343,000	$ 7,796,000
Option to purchase, number of shares (in shares) \| shares	11.6
Conversion price of convertible senior notes (in dollars per share) \| $ / shares	$ 25.78			$ 25.78
Convertible note hedge cost	$ 61,000,000
Warrants outstanding (in shares) \| shares	11.6	11.6	11.6	11.6	11.6
Strike price of warrants (in dollars per share) \| $ / shares	$ 46.88	$ 46.88		$ 46.88
Proceeds from issuance of warrants	$ 28,100,000
Deferred tax liability		$ 8,800,000		$ 8,800,000		$ 8,800,000
Deferred tax asset		9,700,000		9,700,000		9,700,000
Senior Notes \| 2.00% Convertible Senior Notes Due 2024
Debt Instrument [Line Items]
Interest rate	2.00%
Convertible debt issued	$ 300,000,000
Conversion ratio	0.0387879
Conversion price (in dollars per share) \| $ / shares	$ 25.78
Amortization of debt discount		2,800,000	$ 2,600,000	8,300,000	$ 7,800,000
Senior Notes \| 2.00% Convertible Senior Notes Due 2024 \| Level 2
Debt Instrument [Line Items]
Fair value of convertible senior notes		$ 298,500,000		$ 298,500,000		$ 303,500,000
Senior Notes \| 2.00% Convertible Senior Notes Due 2024 \| Initial Purchasers
Debt Instrument [Line Items]
Debt issuance costs	$ 3,800,000
Senior Notes \| 2.00% Convertible Senior Notes Due 2024 \| Third Party Offerers
Debt Instrument [Line Items]
Debt issuance costs	$ 1,500,000