Class of warrant or right number of securities unvested.

No definition available.

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- Definition

Class of warrant or right number of securities vested.

+ References

No definition available.

+ Details

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- Definition

Estimate of fair value per warrant.

+ References

No definition available.

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- Definition

Number of vesting annual installments of warrants.

+ References

No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, Board Of Directors, Award Requisite Service Period

+ References

No definition available.

+ Details

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- Definition

Warrants or rights vested expiration date.

+ References

No definition available.

+ Details

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- Definition

Warrants or rights vested last installment date.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Warrants or rights vested start date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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

Number of shares authorized for issuance under share-based payment arrangement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

+ Details

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 10
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-Paragraph 2
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Stock-Based Awards - Additional Information (Details)		12 Months Ended
Stock-Based Awards - Additional Information (Details)	Apr. 18, 2019 Installment $ / shares shares	Jan. 28, 2023 USD ($) shares	Jan. 29, 2022 USD ($) shares	Jan. 30, 2021 USD ($) shares	Feb. 01, 2020 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Authorized		9,000,000.0
Available for grant		6,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value \| $				$ 0
Number of stock options outstanding		0	12,000	36,000	87,000
Aggregate fair value of awards at the time of vesting \| $		$ 41,000,000	$ 42,000,000	$ 56,000,000
Total share-based compensation expense net of forfeitures \| $		30,000,000	48,000,000	$ 40,000,000
Total unrecognized share-based compensation expense for al share-based payment plans \| $		$ 50,000,000
Weighted average period, years		1 year 6 months
Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value \| $		$ 1,000,000	$ 1,000,000
Amazon [Member] \| Commercial Agreement [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to be purchased warrants	1,747,441
Exercise price of warrants \| $ / shares	$ 69.68
Estimated of fair value per warrant \| $ / shares	$ 17.52
Warrants, number of vesting annual installments \| Installment	5
Warrants vest, beginning date	Jan. 15, 2020
Warrants vest, ending date	Jan. 15, 2024
Number of shares to be purchased warrants,vested		1,397,953
Number of shares to be purchased warrants, Unvested		349,488
Warrants vest, expiration date	Apr. 18, 2026
Nonvested Restricted Stock Awards and Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
General term of a elected director, years		5 years
Vesting term, years		1 year