Reportable Segments - Percentage of Revenues from Customers by Country (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Revenue from External Customer [Line Items]
Revenue	$ 215.5	$ 274.0	$ 698.2	$ 828.7
United States
Revenue from External Customer [Line Items]
Revenue	$ 45.3	$ 68.8	$ 161.4	$ 197.8
United States | Geographic Concentration Risk
Revenue from External Customer [Line Items]
% of Revenue	21.00%	25.10%	23.10%	23.90%
China
Revenue from External Customer [Line Items]
Revenue	$ 55.4	$ 83.0	$ 200.8	$ 289.6
China | Geographic Concentration Risk
Revenue from External Customer [Line Items]
% of Revenue	25.70%	30.30%	28.80%	34.90%
Europe
Revenue from External Customer [Line Items]
Revenue	$ 64.8	$ 63.2	$ 188.3	$ 197.1
Europe | Geographic Concentration Risk
Revenue from External Customer [Line Items]
% of Revenue	30.10%	23.10%	27.00%	23.80%
Other
Revenue from External Customer [Line Items]
Revenue	$ 50.0	$ 59.0	$ 147.7	$ 144.2
Other | Geographic Concentration Risk
Revenue from External Customer [Line Items]
% of Revenue	23.20%	21.50%	21.20%	17.40%