Revenue (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Commercial Engine Revenue			$ 147,734,000	$ 151,103,000
Commercial Product Revenue			260,275,000	281,882,000
Commercial Engine Eliminations			(29,666,000)	(15,390,000)
Total Commercial Revenue	$ 127,824,000	$ 160,967,000	378,343,000	417,595,000
Residential Engine			474,429,000	576,248,000
Residential Product Revenue			406,718,000	416,997,000
Residential Eliminations			(34,295,000)	(46,185,000)
Total Residential Revenue	345,711,000	419,229,000	846,852,000	947,060,000
Engine Revenue Total	269,619,000	336,243,000	622,163,000	727,351,000
Total Product Revenue	229,368,000	271,209,000	666,993,000	698,879,000
Total Eliminations	(25,452,000)	(27,256,000)	(63,961,000)	(61,575,000)
Revenues	473,535,000	580,196,000	1,225,195,000	1,364,655,000
tiered volume discount	4,700,000	7,100,000	8,400,000	9,500,000
Expected Value Rebate	2,700,000	2,600,000	4,800,000	4,500,000
Floor Plan Interest	$ 4,400,000	7,900,000	$ 9,800,000	$ 9,500,000
Retailer Bad Debt		$ 4,100,000