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Employee 401(k) Savings Plan	12 Months Ended
Employee 401(k) Savings Plan	Apr. 29, 2017
Compensation and Retirement Disclosure [Abstract]
Employee 401(k) Savings Plan	Employee 401(k) Savings Plan We have an employee 401(k) Savings Plan covering substantially all U.S. employees to which we make contributions equal to 3% of eligible compensation. Our contribution to the employee 401(k) Savings Plan was $1.3 million in fiscal years 2017, 2016 and 2015, respectively.