Business Acquisitions, Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 25, 2016	Mar. 31, 2017	Mar. 25, 2016	Jun. 30, 2016
Indentifiable Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 2,813	$ 3,162	$ 8,146	$ 5,078
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	70,910		70,910		$ 61,118
Accumulated Amortization of Identifiable Intangible Assets	(22,821)		(22,821)		(15,575)
Finite-Lived Intangible Assets, Net	48,089		48,089		45,543
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	71,336		71,336		61,544
Intangible Assets Net Excluding Goodwill Accumulated Amortization	(22,821)		(22,821)		(15,575)
Intangible Assets, Net (Excluding Goodwill)	48,515		48,515		45,969
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2017	3,191		3,191
2018	12,368		12,368
2019	10,103		10,103
2020	9,146		9,146
2021	8,574		8,574
2022 and thereafter	4,707		4,707
Engineering licenses
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	426		426		426
Customer relationships
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	67,210		67,210		59,218
Accumulated Amortization of Identifiable Intangible Assets	(22,276)		(22,276)		(14,933)
Finite-Lived Intangible Assets, Net	44,934		44,934		44,285
Contract backlog
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	2,700		2,700		900
Accumulated Amortization of Identifiable Intangible Assets	(278)		(278)		(525)
Finite-Lived Intangible Assets, Net	2,422		2,422		375
Technology
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	1,000		1,000		1,000
Accumulated Amortization of Identifiable Intangible Assets	(267)		(267)		(117)
Finite-Lived Intangible Assets, Net	$ 733		$ 733		$ 883