Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Apr. 01, 2012
Cash flows from operating activities:
Net income (loss)	$ (18,266)	$ 73,136	$ 229,436
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	32,523	28,630	31,641
Stock-based compensation	22,638	30,363	32,592
Deferred income taxes	(3,637)	(110)	(4,813)
Gain on sale of business			(103,509)
Asset impairments	8,022
Other non-cash items	2,729	3,954	5,946
Changes in operating assets and liabilities, net of acquisitions and disposition:
Accounts receivable	899	10,635	(6,533)
Inventories	6,660	(436)	(843)
Other assets	(19,013)	(3,346)	361
Accounts payable	4,376	(3,555)	(4,908)
Accrued compensation	(1,511)	(873)	2,468
Accrued taxes, net	9,855	(37,314)	(16,265)
Other liabilities	11,516	(3,919)	590
Net cash provided by operating activities	56,791	97,165	166,163
Cash flows from investing activities:
Purchases of available-for-sale securities	(342,921)	(298,621)	(573,635)
Proceeds from sales and maturities of available-for-sale securities	510,816	308,947	433,644
Purchases of property and equipment	(27,550)	(46,765)	(32,731)
Acquisition of businesses	(157,352)
Proceeds from sale of business			124,969
Net cash used in investing activities	(17,007)	(36,439)	(47,753)
Cash flows from financing activities:
Proceeds from issuance of common stock under stock-based awards	8,711	8,250	29,961
Minimum tax withholding paid on behalf of employees for restricted stock units	(4,739)	(5,635)	(5,473)
Purchases of treasury stock	(47,785)	(131,426)	(126,870)
Other financing activities	(245)	(899)	708
Net cash used in financing activities	(44,058)	(129,710)	(101,674)
Net increase (decrease) in cash and cash equivalents	(4,274)	(68,984)	16,736
Cash and cash equivalents at beginning of year	95,532	164,516	147,780
Cash and cash equivalents at end of year	91,258	95,532	164,516
Supplemental disclosure of cash flow information:
Cash paid during the year for income taxes, net of refunds received	$ 2,508	$ 23,434	$ 25,311