Business Acquisitions, Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 25, 2015	Jun. 30, 2015
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 61,118	$ 16,618
Accumulated Amortization of Identifiable Intangible Assets	(9,656)	(7,740)
Finite-Lived Intangible Assets, Net	51,462	8,878
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	61,544	17,044
Intangible Assets Net Excluding Goodwill Accumulated Amortization	(9,656)	(7,740)
Intangible Assets, Net (Excluding Goodwill)	51,888	9,304
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2016	3,212
2017	6,264
2018	6,917
2019	6,641
2020	5,667
2021 and thereafter	22,761
Engineering licenses
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)	426	426
Customer relationships
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	59,218	16,618
Accumulated Amortization of Identifiable Intangible Assets	(9,564)	(7,740)
Finite-Lived Intangible Assets, Net	49,654	8,878
Contract backlog
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	900	0
Accumulated Amortization of Identifiable Intangible Assets	(75)	0
Finite-Lived Intangible Assets, Net	825	0
Technology
Finite-lived Intangible Assets
Finite-Lived Intangible Assets, Gross	1,000	0
Accumulated Amortization of Identifiable Intangible Assets	(17)	0
Finite-Lived Intangible Assets, Net	$ 983	$ 0