Segment Information Business Optimization Charges Impact on Gross Profit by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 29, 2019	Dec. 30, 2018
Cost Of Goods Sold Business Optimization Charges	$ 7,628	$ 1,499	$ 13,265	$ 4,801
Engines [Member]
Cost Of Goods Sold Business Optimization Charges	7,187	665	12,175	1,088
Products [Member]
Cost Of Goods Sold Business Optimization Charges	$ 441	$ 834	$ 1,090	$ 3,713