Antidilutive securities excluded from computation of earnings per share amount subject to adjustment.

No definition available.

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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

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870

+ Details

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- Details

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Net Loss per Share - Additional Information (Details) - $ / shares shares in Millions	6 Months Ended
	Jul. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jan. 31, 2018
2026 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Additionally shares underlying conversion option	4.7
Convertible, conversion price per share		$ 296.45
2026 Notes \| Maximum
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of shares subject to adjustment	6.2
2025 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Additionally shares underlying conversion option	5.0
Convertible, conversion price per share			$ 159.60
2025 Notes \| Maximum
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of shares subject to adjustment	6.8
2023 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Additionally shares underlying conversion option	0.4
Convertible, conversion price per share				$ 44.5068
2023 Notes \| Maximum
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Number of shares subject to adjustment	0.5
Common Stock \| 2026 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Convertible, conversion price per share	$ 296.45
Common Stock \| 2025 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Convertible, conversion price per share	$ 159.60
Common Stock \| 2023 Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Additionally shares underlying conversion option	2.1
Convertible, conversion price per share	$ 44.51