Segment and Geographic Information and Significant Customers Segment and Geographical Information and Significant Customers (Restructuring Charges, Acquisition-related Charges, and Pension Settlement Charges Impact on Gross Profit by Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 03, 2016
Cost Of Goods Sold Restructuring Charges, Acquisition-related Charges, and Pension Settlement Charges	$ 6,629	$ 0	$ 19,542
Engines [Member]
Cost Of Goods Sold Restructuring Charges, Acquisition-related Charges, and Pension Settlement Charges	2,854	0	11,599
Products [Member]
Cost Of Goods Sold Restructuring Charges, Acquisition-related Charges, and Pension Settlement Charges	$ 3,775	$ 0	$ 7,943