Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Mar. 27, 2016	Dec. 27, 2015	Dec. 28, 2014	Jun. 26, 2016	Jun. 28, 2015
Income Taxes
Effective tax rate (as a percent)				34.30%	30.60%
Acquisition and integration expenses and debt pre-payment fees	$ 13.3
Income tax benefit on business combination acquisition and integration expenses and debt pre-payment fees	0.0
Business combination acquisition related expenses	6.4
Business combination integration costs and debt pre-payment fees	$ 6.9
R&E credits		$ 2.0	$ 1.2
Undistributed earnings of foreign subsidiaries				$ 64.5
Incremental federal tax due to repatriation of foreign earnings				$ 5.6
Represents the period of projected cumulative pre-tax losses in certain foreign jurisdictions				36 months
Loss carry-forwards in foreign jurisdictions, valuation allowance				$ 8.9
Effective income tax rate excluding R&E credits, acquisition expenses and debt pre-payment fees (as a percent)				32.70%	31.50%