Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 110,238	$ 37,156
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,040	7,262
Stock compensation expense	15,760	8,725
Deferred income taxes	52,602	20,064
Gain (loss) on retirement or write-off of long-lived assets	(342)	10
Other non-cash charges	2,872	0
Net change in operating assets and liabilities:
Accounts receivable, net	(126,626)	(15,414)
Inventories	(83,329)	(17,582)
Other assets	(2,270)	(4,405)
Accounts payable and other accrued liabilities	53,116	14,188
Deferred income	(1,649)	1,667
Income taxes payable	(35)	240
Net cash provided by operating activities	30,377	51,911
Cash flows from investing activities:
Proceeds from sale of available for sale marketable securities	96,139	175,234
Purchases of available for sale marketable securities	(38,076)	(122,506)
Purchases of property, equipment and software	(48,628)	(25,667)
Proceeds from sale of assets	22,220
Investments in technology	(2,777)	(6,011)
Decrease in restricted investments	0	2,888
Decrease in deposits and other assets	493	604
Net cash provided by investing activities	29,371	24,542
Cash flows from financing activities:
Repurchase and retirement of common stock	(47,856)	(76,782)
Issuance of common stock, net of issuance costs	9,563	1,300
Net cash used in financing activities	(38,293)	(75,482)
Net increase in cash and cash equivalents	21,455	971
Cash and cash equivalents at beginning of period	65,997	37,039
Cash and cash equivalents at end of period	$ 87,452	$ 38,010