Segment, Customers, and Geographic Information - Net Revenue within Geographic Areas Based on Customers' Locations (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 1,333.9	$ 1,472.2	$ 1,630.3
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	540.6	844.8	803.2
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	204.5	239.8	235.2
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	446.5	234.6	358.6
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	77.3	64.9	74.9
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	58.3	63.5	67.5
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 6.7	$ 24.6	$ 90.9