Income Taxes (Tables)

12 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Summary Of Income Before Income Taxes

	Year Ended
	March 31, 2012	March 26, 2011	March 27, 2010
United States............................................................................................................. .	$ 79,425	$ 83,569	$ 24,289
Non-U.S......................................................................................................................	558	645	2,394
	$ 79,983	$ 84,214	$ 26,683

Summary Of Provision (Benefit) For Income Taxes

	Year Ended
Current:	March 31, 2012	March 26, 2011	March 27, 2010
Federal........................................................................................................................	$1,322	$163	$(75)
State............................................................................................................................	518	312	8
Non-U.S......................................................................................................................	261	204	264
Total current tax provision...........................................................................	$2,101	$679	$197
Deferred:
U.S...............................................................................................................................	$ (10,102)	$ (120,057)	$(11,787)
Non-U.S......................................................................................................................	1	89	(125)
Total deferred tax benefit.............................................................................	(10,101)	(119,968)	(11,912)
Total tax benefit.............................................................................................	$(8,000)	$ (119,289)	$(11,715)

Summary Of Provision (Benefit) For Income Taxes, Statutory Federal Rate Pretax Income Reconciliation

	Year Ended
	March 31, 2012	March 26, 2011	March 27, 2010
Expected income tax provision at the U.S. federal statutory rate...................	35.0	35.0	35.0
Valuation allowance changes affecting the provision of income taxes........ .	(46.7)	(178.6)	(80.5)
Foreign taxes at different rates................................................................................	—	0.1	(2.7)
Foreign earnings taxed in the U.S............................................................................	—	—	0.2
Refundable R&D credit............................................................................................	—	—	(0.3)
Stock compensation..................................................................................................	1.0	(0.1)	4.2
Nondeductible expenses..........................................................................................	0.1	1.1	0.4
Other............................................................................................................................	0.6	0.9	(0.2)
Benefit for income taxes........................................................................................ .	(10.0)	(141.6)	(43.9)

Significant Components Of Deferred Tax Assets And Liabilities

	Year Ended
	March 31, 2012	March 26, 2011
Deferred tax assets:
Inventory valuation.............................................................................................................	$3,240	$4,494
Accrued expenses and allowances....................................................................................	3,656	3,017
Net operating loss carryforwards.......................................................................................	105,220	131,331
Research and development tax credit carryforwards....................................................	36,032	37,464
State tax credit carryforwards............................................................................................	244	250
Capitalized research and development............................................................................	9,779	14,773
Depreciation and Amortization.........................................................................................	—	159
Other........................................................................................................................................	18,747	14,807
Total deferred tax assets..............................................................................................	$176,918	$206,295
Valuation allowance for deferred tax assets...................................................................	(29,075)	(68,380)
Net deferred tax assets..................................................................................................	$147,843	$ 137,915
Deferred tax liabilities:
Depreciation and amortization............................................................................................	$287	$—
Acquisition intangibles.........................................................................................................	5,348	5,861
Total deferred tax liabilities..........................................................................................	$5,635	$5,861
Total net deferred tax assets..........................................................................................	$142,208	$132,054

Summary Of Deferred Tax Assets

	March 31, 2012	March 26, 2011
Current deferred tax assets...............................................................................................	$53,137	$30,797
Long-term deferred tax assets..........................................................................................	89,071	102,136
Long-term deferred tax liabilities.....................................................................................	—	(879)
Total net deferred tax assets.............................................................................................	$142,208	$132,054

Reconciliation Of Unrecognized Tax Benefits

Balance at March 26, 2011...................................................................................................................................	$0
Additions based on tax positions related to the current year..........................................................................	—
Reductions for tax positions of prior years.........................................................................................................	—
Settlements...............................................................................................................................................................	—
Reductions related to expirations of statutes of limitation..............................................................................	—
Balance at March 31, 2012...................................................................................................................................	$0