Debt Instrument, Convertible, Carrying Amount Of Equity Component, Gross

No definition available.

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- Definition

Debt Instrument, Convertible, Proceeds From Issuance, Net Of Purchase Discounts And Debt Issuance Costs Paid Or Payable

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Convertible, Threshold Percentage Of Stock Trading Price

+ References

No definition available.

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- Definition

Debt Instrument, Event Of Default, Option To Accelerate Amounts Due, Threshold Percentage Of Principal Amount Of Outstanding Debt

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Redemption, Threshold Trading Days Preceding Maturity Date

+ References

No definition available.

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- Definition

Debt Issuance Costs, Gross, Equity Component

+ References

No definition available.

+ Details

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- Definition

Debt Issuance Costs, Gross, Liability Component

+ References

No definition available.

+ Details

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- Definition

Option Indexed to Issuer's Equity, Automatic Exercise Period, Trading Days

+ References

No definition available.

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- Definition

Option Indexed to Issuer's Equity, Stock Price Cap

+ References

No definition available.

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- Definition

Payments For Capped Call Option Related To Convertible Debt

+ References

No definition available.

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- Definition

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

+ References

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-Topic 470
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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

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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- Definition

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

+ References

+ Details

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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

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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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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Amount, after 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 of the cost of borrowed funds accounted for as interest expense for debt.

+ References

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The number of issuer's shares to which the option contract is indexed.

+ References

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- Definition

Exercise or strike price stated in the contract for options indexed to the issuer's equity shares.

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Debt and Financing Arrangements - Additional Information (Details) $ / shares in Units, shares in Millions		3 Months Ended
	Jun. 25, 2020 USD ($) day $ / shares shares	Apr. 30, 2021 USD ($)	Apr. 30, 2020 USD ($)	Jan. 31, 2021 USD ($)
Debt Instrument [Line Items]
Net proceeds from debt offering, after deducting initial purchaser discounts and debt issuance costs paid or payable	$ 278,200,000
Conversion rate	0.0249507
Initial conversion price (in dollars per share) \| $ / shares	$ 40.08
Carrying amount of equity component representing conversion option	$ 70,800,000			$ 70,768,000
Issuance costs attributable to equity component				2,290,000
Net cost incurred to purchase Capped Calls	$ 35,700,000
Capped Calls
Debt Instrument [Line Items]
Initial strike price (in dollars per share) \| $ / shares	$ 40.08
Cap price (in dollars per share) \| $ / shares	$ 61.66
Number of shares of common stock covered by capped calls (in shares) \| shares	7.2
Automatic exercise period for capped calls, trading days \| day	40
Debt Conversion Terms, One
Debt Instrument [Line Items]
Threshold trading days \| day	20
Threshold consecutive trading days \| day	30
Threshold percentage of stock price trigger	130.00%
Debt Conversion Terms, Two
Debt Instrument [Line Items]
Threshold trading days \| day	5
Threshold consecutive trading days \| day	10
Threshold percentage of product of last reported sales price of common stock and conversion rate on each such trading day	98.00%
On or after July 6, 2023
Debt Instrument [Line Items]
Threshold trading days \| day	20
Threshold consecutive trading days \| day	30
Threshold percentage of stock price trigger	130.00%
Convertible Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount of debt issued	$ 287,500,000	$ 287,500,000
Stated interest rate	1.25%
Event of default, option to accelerate amounts due, minimum percentage of aggregate principal amount of outstanding debt	25.00%
Effective interest rate	7.88%	1.93%
Issuance costs attributable to company				9,300,000
Issuance costs attributable to liability component				7,000,000.0
Long-term debt		$ 279,703,000		217,528,000
Unamortized issuance costs		7,797,000		$ 6,308,000
Interest expense related to the Notes		$ 1,317,000	$ 0
Convertible Senior Notes \| Discount Rate
Debt Instrument [Line Items]
Liability component calculation, measurement input	0.0730
Convertible Senior Notes \| On or after July 6, 2023
Debt Instrument [Line Items]
Redemption, threshold trading days immediately preceding maturity date \| day	41
Redemption price, percentage of principal amount to be redeemed	100.00%
Convertible Senior Notes \| Fundamental Change
Debt Instrument [Line Items]
Redemption price, percentage of principal amount to be redeemed	100.00%