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Fair Value Measurements (Details 1) - USD ($)
$ in Thousands
3 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Changes in Level 3 instruments measured at fair value on a recurring basis    
Balance as of beginning of period $ 0 $ 9,977
Total realized and unrealized gains (losses) included in other comprehensive income 0 91
Balance as of end of period $ 0 $ 10,068