Debt and Credit Facility (Tables)

6 Months Ended

Sep. 27, 2014

Two And Six Two Five Percent Senior Convertible Debentures [Member] | Two And Six Two Five Percent Senior Convertible Debentures [Member]

Schedule of Debt Instruments [Line Items]

Carrying values of liability and equity components of debentures

The carrying values of the liability and equity components of the 2017 Convertible Notes are reflected in the Company’s condensed consolidated balance sheets as follows:

(In thousands)	September 27, 2014			March 29, 2014
Liability component:
Principal amount of the 2017 Convertible Notes	$	600,000		$	600,000
Unamortized discount of liability component	(41,451		)	(49,223		)
Hedge accounting adjustment – sale of interest rate swap	11,978			14,224
Net carrying value of the 2017 Convertible Notes	$	570,527		$	565,001
Equity component (including temporary equity) – net carrying value	$	66,415		$	66,415

Interest Expense Related to Debentures [Table Text Block]

Interest expense related to the 2017 Convertible Notes was included in interest and other expense, net on the condensed consolidated statements of income as follows:

	Three Months Ended				Six Months Ended
(In thousands)	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
Contractual coupon interest	$	3,938	$	3,938	$	7,875	$	7,875
Amortization of debt issuance costs	362		362		724		724
Amortization of debt discount, net	2,763		2,763		5,526		5,526
Total interest expense related to the 2017 Convertible Notes	$	7,063	$	7,063	$	14,125	$	14,125

2019 and 2021 Notes Payable [Member]

Schedule of Debt Instruments [Line Items]

Schedule of Long-term Debt Instruments [Table Text Block]

The following table summarizes the carrying value of the 2019 and 2021 Notes as of September 27, 2014 and March 29, 2014:

(In thousands)	September 27, 2014			March 29, 2014
Principal amount of the 2019 Notes	$	500,000		$	500,000
Unamortized discount of the 2019 Notes	(2,324		)	(2,574		)
Principal amount of the 2021 Notes	500,000			500,000
Unamortized discount of the 2021 Notes	(3,324		)	(3,556		)
Total carrying value	$	994,352		$	993,870

Interest Expense Related to Debentures [Table Text Block]

Interest expense related to the 2019 and 2021 Notes was included in interest and other expense, net on the condensed consolidated statements of income as follows:

	Three Months Ended				Six Months Ended
(In thousands)	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
Contractual coupon interest	$	6,406	$	—	$	12,813	$	—
Amortization of debt issuance costs	134		—		290		—
Amortization of debt discount, net	242		—		482		—
Total interest expense related to the 2019 and 2021 Notes	$	6,782	$	—	$	13,585	$	—