Organization consolidation and presentation of financial statements.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The cash outflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3581-108585

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

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Organization (Detail) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
Organization (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Organization Consolidation and Presentation of Financial Statements
Debt instrument, principal amount	$ 350,000		$ 350,000
Purchase of convertible note hedges			91,350	$ 91,857
Cash proceeds from sale of warrants			50,225	51,021
Original issuance and offering costs			4,636		$ 8,298
Convertible senior notes due 2023
Organization Consolidation and Presentation of Financial Statements
Debt instrument, principal amount			$ 335,000	$ 335,000
Cash proceeds from sale of warrants	50,200	$ 51,000
Convertible senior notes due 2023 \| Convertible bond hedge and warrant transactions
Organization Consolidation and Presentation of Financial Statements
Purchase of convertible note hedges	91,400	91,900
Convertible senior notes due 2024
Organization Consolidation and Presentation of Financial Statements
Cash proceeds from sale of warrants	304,100
Original issuance and offering costs	4,800
Convertible senior notes due 2024 \| Convertible bond hedge and warrant transactions
Organization Consolidation and Presentation of Financial Statements
Purchase of convertible note hedges	91,400
Cash proceeds from sale of warrants	50,200
Private Placement \| Convertible senior notes due 2023
Organization Consolidation and Presentation of Financial Statements
Debt instrument, principal amount	$ 350,000	$ 300,000
Debt instrument, interest rate	0.00%	0.00%
Private Placement \| Convertible senior notes due 2024
Organization Consolidation and Presentation of Financial Statements
Debt instrument, interest rate	0.00%
Over Allotment Option in Private Placement \| Convertible senior notes due 2023
Organization Consolidation and Presentation of Financial Statements
Debt instrument, principal amount		$ 35,000