Debt (Narrative) (Details) - USD ($)	3 Months Ended
Jul. 05, 2019	Mar. 29, 2019
Debt Instrument [Line Items]
Stock closing price (in dollars per share)	$ 25.00
Convertible Debt \| 2.5% Convertible Senior Notes due April 1, 2021
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.50%
Convertible Debt \| 2.0% Convertible Senior Notes due August 15, 2021
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.00%
Convertible Debt \| 2.5% Convertible Senior Notes Due April 1, 2021
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.50%
If-converted value in excess of principal	$ 245,000,000
Convertible Debt \| 2.0% Convertible Senior Notes Due August 15, 2021
Debt Instrument [Line Items]
Stated interest rate (as a percent)	2.00%
If-converted value in excess of principal	$ 281,000,000
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity, revolving line of credit	1,000,000,000.0
Amount outstanding, revolving line of credit	$ 0	$ 0

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

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 (c)
-URI http://asc.fasb.org/extlink&oid=109500613&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
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- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Paragraph 1
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- Definition

Price of a single share of a number of saleable stocks of a company.

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