CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 28, 2013	Jun. 29, 2012
Cash flows from operating activities:
Net loss	$ (1,487)	$ (14,433)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	36,226	31,154
Amortization of intangible assets	5,889	5,563
Deferred income taxes	(5,888)	(10,888)
Stock-based compensation expense	7,490	6,619
Loss on disposition of fixed assets	6,036	1,832
Other non-cash adjustments	1,200	1,165
Increase (decrease) in cash resulting from changes in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	5,474	(10,607)
Inventories	(14,245)	(10,274)
Other assets	1,728	(2,194)
Accounts payable	18,994	2,306
Accrued liabilities	(8,012)	(4,277)
Other liabilities	417	4,825
Net cash provided by operating activities	53,822	791
Cash flows from investing activities:
Purchase of property, equipment and satellites	(73,030)	(36,882)
Cash paid for patents, licenses and other assets	(11,776)	(6,327)
Payment related to acquisition of business, net of cash acquired	(2,400)
Net cash provided by (used in) investing activities	(87,206)	(43,209)
Cash flows from financing activities:
Payment of debt issuance costs		(2,215)
Proceeds from issuance of common stock under equity plans	8,279	4,635
Purchase of common stock in treasury	(273)	(2,020)
Other	(574)	(560)
Net cash provided by (used in) financing activities	7,432	(160)
Effect of exchange rate changes on cash	(104)	(113)
Net decrease in cash and cash equivalents	(26,056)	(42,691)
Cash and cash equivalents at beginning of period	105,738	172,583
Cash and cash equivalents at end of period	79,682	129,892
Non-cash investing and financing activities:
Issuance of common stock in satisfaction of certain accrued employee compensation liabilities	$ 8,018	$ 7,060