Convertible Senior Notes - Convertible Note Hedge and Warrant Transactions (Details) - Convertible Note Hedge and Warrant Transactions - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Apr. 17, 2020	Jan. 30, 2021
Convertible Senior Notes
Debt instrument, term	5 years
Number of securities called by warrants or rights (in shares)		16.6
Exercise price of warrants or rights (in dollars per share)	$ 52.42	$ 51.44
Convertible, conversion price percentage - note hedge	35.00%
Convertible, conversion price percentage - warrants	100.00%
Additional Paid-In Capital
Convertible Senior Notes
Bond hedges and sale of warrants, net	$ 55.8

Debt Instrument, Bond Hedges and Sale of Warrants, Net

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- Definition

Debt Instrument, Convertible, Conversion Price, Hedge

+ References

No definition available.

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- Definition

Debt Instrument, Convertible, Conversion Price, Percentage, Warrant

+ References

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- 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 http://asc.fasb.org/extlink&oid=109259400&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

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

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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