Consolidated Condensed Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 20,642	$ 6,927
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	3,367	2,958
Stock compensation expense	5,862	4,172
Deferred income taxes	10,102	3,348
Other non-cash charges	1,265	1,150
Net change in operating assets and liabilities:
Accounts receivable, net	5,647	(5,109)
Inventories	8,676	(40,875)
Other assets	(2,054)	(231)
Accounts payable and other accrued liabilities	(16,979)	26,986
Deferred income	(537)	(70)
Income taxes payable	721	157
Net cash provided by (used in) operating activities	36,712	(587)
Cash flows from investing activities:
Proceeds from sale of available for sale marketable securities	4,922	40,931
Purchases of available for sale marketable securities	(39,698)	(4,497)
Purchases of property, equipment and software	(1,222)	(17,326)
Investments in technology	(650)	(1,103)
Decrease (increase) in deposits and other assets	(16)	(145)
Net cash (used in) provided by investing activities	(36,664)	17,860
Cash flows from financing activities:
Issuance of common stock, net of shares withheld for taxes	720	1,042
Net cash provided by financing activities	720	1,042
Net increase in cash and cash equivalents	768	18,315
Cash and cash equivalents at beginning of period	66,402	65,997
Cash and cash equivalents at end of period	$ 67,170	$ 84,312