Cash, Cash Equivalents and Investments (Details 3) $ in Thousands	Jul. 04, 2015 USD ($)
Contractual maturity of marketable debt investments
Marketable Investments, Debt Maturities, Within One Year, Amortized Cost	$ 52,956
Marketable Investments, Debt Maturities, Year One Through Three, Amortized Cost	41,733
Marketable investments, Debt Maturities, Amortized Cost, Total	94,689
Marketable Investments, Debt Maturities, Within One Year, Fair Value	52,990
Marketable Investments, Debt Maturities, Year One Through Three, Fair Value	41,769
Marketable Investments, Debt Maturities, Fair Value, Total	$ 94,759