Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Oct. 03, 2014
Cash flows from operating activities:
Net income	$ 7,439	$ 17,671
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	94,996	87,366
Amortization of intangible assets	23,433	18,503
Deferred income taxes	3,814	11,302
Stock-based compensation expense	22,283	17,962
Loss on disposition of fixed assets	17,862	18,104
Other non-cash adjustments	3,697	2,285
Increase (decrease) in cash resulting from changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	(41,073)	(7,318)
Inventories	(4,472)	(7,059)
Other assets	(4,367)	6,152
Accounts payable	(3,703)	(2,215)
Accrued liabilities	(10,210)	66
Other liabilities	(2,201)	(4,325)
Net cash provided by operating activities	107,498	158,494
Cash flows from investing activities:
Purchase of property, equipment and satellites	(137,517)	(137,618)
Cash paid for patents, licenses and other assets	(32,483)	(23,743)
Payments related to acquisition of businesses, net of cash acquired	(3,613)	(56,545)
Net cash used in investing activities	(173,613)	(217,906)
Cash flows from financing activities:
Payment of debt issuance costs	(803)
Proceeds from issuance of common stock under equity plans	11,422	10,326
Payments related to tax withholdings on restricted stock unit releases	(1,339)	(790)
Other	(886)	(1,405)
Net cash provided by financing activities	60,244	43,131
Effect of exchange rate changes on cash	14	(137)
Net decrease in cash and cash equivalents	(5,857)	(16,418)
Cash and cash equivalents at beginning of period	52,263	58,347
Cash and cash equivalents at end of period	46,406	41,929
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	22,957	6,567
Exposure fees on Ex-Im credit facility expected to be financed through Ex-Im credit facility	8,400
Revolving credit facility [Member]
Cash flows from financing activities:
Proceeds from credit facility borrowings	100,000	160,000
Payments of revolving credit facility borrowings	(145,000)	$ (125,000)
Ex-Im Credit Facility [Member]
Cash flows from financing activities:
Proceeds from credit facility borrowings	96,850
Non-cash investing and financing activities:
Exposure fees on Ex-Im credit facility expected to be financed through Ex-Im credit facility	$ 8,443