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

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

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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

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.

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Net Income Per Share (Narrative) (Details) - Convertible Debt - $ / shares	Apr. 02, 2021	May 26, 2020	Apr. 03, 2020	Mar. 10, 2020	Mar. 05, 2020	Feb. 04, 2020	Jan. 31, 2020	Nov. 11, 2019	Mar. 29, 2019	Aug. 01, 2016	Mar. 04, 2016
2.5% Convertible Senior Notes due April 1, 2021
Debt Instrument [Line Items]
Conversion price (in USD per share)			$ 8.40						$ 16.77
Stated interest rate (as a percent)				2.50%		2.50%		2.50%			2.50%
2.0% Convertible Senior Notes due August 15, 2021
Debt Instrument [Line Items]
Conversion price (in USD per share)			10.23						$ 20.41
Stated interest rate (as a percent)		2.00%				2.00%		2.00%		2.00%
New 2.5% Convertible Senior Notes due April 1, 2022
Debt Instrument [Line Items]
Conversion price (in USD per share)	$ 16.77		16.77		$ 19	$ 16.77	$ 8.40
Stated interest rate (as a percent)	2.50%				2.50%	2.50%		2.50%
New 2.0% Convertible Senior Notes due August 15, 2022
Debt Instrument [Line Items]
Conversion price (in USD per share)	$ 20.41	$ 19.25	$ 20.41			$ 20.41	$ 10.23
Stated interest rate (as a percent)	2.00%	2.00%				2.00%		2.00%