Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jul. 04, 2014
Cash flows from operating activities:
Net income (loss)	$ 2,519	$ (6,321)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	46,205	43,126
Amortization of intangible assets	11,106	8,481
Deferred income taxes	1,100	(3,060)
Stock-based compensation expense	10,709	8,904
Loss on disposition of fixed assets	9,599	9,214
Other non-cash adjustments	2,453	1,178
Increase (decrease) in cash resulting from changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(30,165)	(5,726)
Inventories	(3,117)	(8,138)
Other assets	(4,643)	4,480
Accounts payable	(3,391)	(1,204)
Accrued liabilities	(23,042)	(1,589)
Other liabilities	(1,347)	(2,434)
Net cash provided by operating activities	17,986	46,911
Cash flows from investing activities:
Purchase of property, equipment and satellites	(65,954)	(85,513)
Cash paid for patents, licenses and other assets	(17,145)	(12,238)
Payments related to acquisition of businesses, net of cash acquired	(3,613)	(56,545)
Net cash used in investing activities	(86,712)	(154,296)
Cash flows from financing activities:
Payment of debt issuance costs	(803)
Proceeds from issuance of common stock under equity plans	5,170	7,791
Payments related to tax withholdings on restricted stock unit releases	(531)	(375)
Other	(372)	(385)
Net cash provided by financing activities	58,759	107,031
Effect of exchange rate changes on cash	198	147
Net decrease in cash and cash equivalents	(9,769)	(207)
Cash and cash equivalents at beginning of period	52,263	58,347
Cash and cash equivalents at end of period	42,494	58,140
Non-cash investing and financing activities:
Issuance of common stock in satisfaction of certain accrued employee compensation liabilities	11,609	10,194
Capital expenditures not paid for	8,566	882
Revolving credit facility [Member]
Cash flows from financing activities:
Proceeds from credit facility borrowings	85,000	130,000
Payments of revolving credit facility borrowings	(70,000)	$ (30,000)
Ex-Im Credit Facility [Member]
Cash flows from financing activities:
Proceeds from credit facility borrowings	$ 40,295