Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Mar. 31, 2012
Deferred tax assets:
Stock-based compensation	$ 28,334	$ 29,451
Deferred income on shipments to distributors	10,299	10,493
Accrued expenses	35,601	39,942
Tax loss carryforwards	3,928	3,856
Tax credit carryforwards	96,327	97,104
Intangible and fixed assets	12,409	4,115
Deferred Tax Assets, Investments	7,781	7,313
Deferred compensation plan	19,375	17,423
Other	2,827	4,132
Deferred tax assets, gross	216,881	213,829
Valuation allowance	(40,065)	(28,963)
Total deferred tax assets	176,816	184,866
Deferred tax liabilities:
Unremitted foreign earnings	(244,892)	(308,017)
State income taxes	(16,793)	(17,343)
Convertible debt	(205,075)	(192,397)
Other	(8,461)	(8,605)
Deferred Tax Liabilities, Gross	(475,221)	(526,362)
Deferred Tax Liabilities, Net	$ (298,405)	$ (341,496)