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Business Combination	9 Months Ended
	Jan. 27, 2018
Business Combinations [Abstract]
Business Combination	Note 6. Business Combinations ADFLOW Acquisition We have a contingent liability related to a prior year acquisition of ADFLOW Networks, Inc. ("ADFLOW"), on March 15, 2016. For more information related to the ADFLOW acquisition, see "Note 4. Business Combinations" of our Annual Report on Form 10-K for the fiscal year ended April 29, 2017. The fair value of such contingent consideration is estimated as of the acquisition date, and subsequently at the end of each reporting period, using forecasted cash flows. Projecting future cash flows requires us to make significant estimates and assumptions regarding future events, conditions, or revenues being achieved under the subject contingent agreement as well as the appropriate discount rate. Such valuation techniques include one or more significant inputs that are not observable. See "Note 13. Fair Value Measurement" for more information.

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- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-URI http://asc.fasb.org/topic&trid=2303972

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- References

No definition available.

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