CONSOLIDATED STATEMENTS OF INCOME (PARENTHETICAL) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		9 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013	Dec. 30, 2012	Apr. 01, 2012
Amortization of debt discount (non-cash interest expense)	$ 5,524	$ 5,219	$ 10,970	$ 10,365
Common Stock, Dividends, Per Share, Cash Paid		$ 0.26	$ 0.52
Cost of sales [Member]
Allocated Share-based Compensation Expense	2,106	1,984	4,070	3,954	3,954
Research and development [Member]
Allocated Share-based Compensation Expense	9,816	9,255	18,978	18,451
Selling, General And Administrative Expense [Member]
Allocated Share-based Compensation Expense	$ 5,069	$ 4,778	$ 9,799	$ 9,523	$ 9,523