Consolidated Statements of Cash Flows (USD $) In Thousands	12 Months Ended
	Apr. 01, 2011	Apr. 02, 2010	Apr. 03, 2009
Cash flows from operating activities:
Net income	$ 36,424	$ 30,839	$ 38,447
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	83,629	37,373	18,658
Amortization of intangible assets	19,424	9,582	9,952
Stock-based compensation expense	17,440	12,212	9,837
Loss on disposition of fixed assets	6,999	594	193
Deferred income taxes	(4,098)	4,229	(5,285)
Other non-cash adjustments	503	2,483	211
Increase (decrease) in cash resulting from changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(14,138)	(1,117)	(9,103)
Inventories	(14,030)	(9,367)	(5,338)
Other assets	3,151	1,504	(2,653)
Accounts payable	6,644	2,965	1,740
Accrued liabilities	32,441	20,612	2,654
Other liabilities	(4,772)	637	2,629
Net cash provided by operating activities	169,617	112,546	61,942
Cash flows from investing activities:
Purchase of property, equipment and satellites, net	(208,285)	(134,543)	(117,194)
Cash paid for patents, licenses and other assets	(15,986)	(13,796)	(8,028)
Payments related to acquisitions of businesses, net of cash acquired	(13,456)	(377,987)	(925)
Change in restricted cash, net		7,298
Net cash used in investing activities	(237,727)	(519,028)	(126,147)
Cash flows from financing activities:
Proceeds from line of credit borrowings	40,000	263,000	10,000
Payments on line of credit	(40,000)	(203,000)	(10,000)
Proceeds from issuance of Senior Notes due 2016, net of discount		271,582
Payment of debt issuance costs	(2,775)	(12,781)
Proceeds from issuance of common stock under equity plans	26,398	23,085	6,742
Proceeds from common stock issued under public offering, net of issuance costs		100,533
Purchase of common stock in treasury	(5,880)	(10,326)	(667)
Incremental tax benefits from stock-based compensation	867		346
Payment on secured borrowing			(4,720)
Proceeds from sale of stock of majority-owned subsidiary			1,500
Net cash provided by financing activities	18,610	432,093	3,201
Effect of exchange rate changes on cash	359	529	(681)
Net (decrease) increase in cash and cash equivalents	(49,141)	26,140	(61,685)
Cash and cash equivalents at beginning of fiscal year	89,631	63,491	125,176
Cash and cash equivalents at end of fiscal year	40,490	89,631	63,491
Supplemental information:
Cash paid for interest (net of amounts capitalized)	2,797	6,287	413
Cash (received) paid for income taxes, net of refunds	(6,563)	7,784	13,287
Non-cash investing and financing activities:
Issuance of common stock in connection with acquisitions	4,630	131,888
Fair value of assets acquired in business combinations, excluding cash acquired	22,699	536,732
Liabilities assumed in business combinations	4,613	26,857
Issuance of stock in satisfaction of certain accrued employee compensation liabilities	5,096	5,090
Equipment acquired under capital lease	3,074
Issuance of common stock in connection with license right obtained		$ 303