Goodwill and Intangible Assets (Intangible Assets) (Details) (USD $)	0 Months Ended	6 Months Ended
	Dec. 20, 2011	Dec. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Remaining amortization period		6 years 1 month 6 days
Original cost		$ 17,100,000
Accumulated amortization		(6,600,000)
Total intangible assets		10,500,000
Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	13,100,000
Original cost		13,100,000
Accumulated amortization		(5,400,000)
Total intangible assets		7,700,000
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	4,000,000
Intangible assets useful life		10 years
Original cost		4,000,000
Accumulated amortization		(1,200,000)
Total intangible assets		$ 2,800,000
Minimum [Member] | Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets useful life		5 years
Maximum [Member] | Intellectual property [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets useful life		10 years