Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

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Net Income Per Common Share (Details) - USD ($) shares in Thousands	3 Months Ended			9 Months Ended
	Dec. 30, 2017	Jul. 01, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016	Apr. 01, 2017
Schedule of Debt Instruments [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	0		10,165	1,990	9,212
Antidilutive shares excluded from computation of dilutive net income per common share	248			3,400
Two And Six Two Five Percent Senior Convertible Debentures [Member]
Schedule of Debt Instruments [Line Items]
Debt Instrument, Face Amount	$ 0	$ 0		$ 0		$ 457,918,000
Two And Six Two Five Percent Senior Convertible Debentures [Member]
Schedule of Debt Instruments [Line Items]
Debt Instrument, Face Amount		$ 600,000,000
Debt Instrument, Interest Rate, Stated Percentage		2.625%
Debt Instrument, Maturity Date		Jun. 15, 2017