Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644

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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=120391452&loc=d3e13212-122682

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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Subsequent Event (Details) - USD ($) $ in Millions	Feb. 16, 2021	Mar. 31, 2021	Dec. 31, 2020	Dec. 19, 2020	Dec. 31, 2019	Dec. 14, 2016
2¼% Notes
Subsequent Event [Line Items]
Debt instrument interest rate stated percentage				2.25%
2 1/4% Notes
Subsequent Event [Line Items]
Debt instrument interest rate stated percentage			2.25%		2.25%	2.25%
2 1/4% Notes \| Convertible senior notes
Subsequent Event [Line Items]
Debt instrument interest rate stated percentage			2.25%
Subsequent Event \| 2¼% Notes
Subsequent Event [Line Items]
Debt instrument, convertible, beneficial conversion feature	$ 135.4
Subsequent Event \| 2 1/4% Notes \| Convertible senior notes
Subsequent Event [Line Items]
Debt instrument interest rate stated percentage		2.25%