Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 29, 2012	Jul. 01, 2011
Cash flows from operating activities:
Net (loss) income	$ (14,433)	$ 1,594
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	31,154	24,372
Amortization of intangible assets	5,563	6,109
Deferred income taxes	(10,888)
Stock-based compensation expense	6,619	4,175
Loss on disposition of fixed assets	1,832	1,329
Other non-cash adjustments	1,165	253
Increase (decrease) in cash resulting from changes in operating assets and liabilities:
Accounts receivable	(10,607)	14,649
Inventories	(10,274)	(22,591)
Other assets	(2,194)	(2,773)
Accounts payable	2,306	(3,616)
Accrued liabilities	(4,277)	(15,071)
Other liabilities	4,825	479
Net cash provided by operating activities	791	8,909
Cash flows from investing activities:
Purchase of property, equipment and satellites, net	(36,882)	(36,567)
Cash paid for patents, licenses and other assets	(6,327)	(4,119)
Net cash used in investing activities	(43,209)	(40,686)
Cash flows from financing activities:
Proceeds from issuance of common stock under equity plans	4,635	4,469
Payment of debt issuance costs	(2,215)	0
Purchase of common stock in treasury	(2,020)	(2,165)
Payments on capital lease	(305)
Payments of satellite performance incentives obligation	(255)
Proceeds from line of credit borrowings		15,000
Net cash (used in) provided by financing activities	(160)	17,304
Effect of exchange rate changes on cash	(113)	96
Net decrease in cash and cash equivalents	(42,691)	(14,377)
Cash and cash equivalents at beginning of period	172,583	40,490
Cash and cash equivalents at end of period	129,892	26,113
Non-cash investing and financing activities:
Issuance of common stock in satisfaction of certain accrued employee compensation liabilities	$ 7,060	$ 6,340