Segment Information Restructuring Charges and Acquisition Related Charges Impact on Gross Profit by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 02, 2017	Mar. 27, 2016	Apr. 02, 2017	Mar. 27, 2016
Cost Of Goods Sold Restructuring Charges and Acquisition Related Charges	$ 0	$ 580	$ 0	$ 5,936
Engines [Member]
Cost Of Goods Sold Restructuring Charges and Acquisition Related Charges	0	0	0	464
Products [Member]
Cost Of Goods Sold Restructuring Charges and Acquisition Related Charges	$ 0	$ 580	$ 0	$ 5,472