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Segment, Customers, and Geographic Information - Net Revenue from External Customers (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 25, 2021	Dec. 26, 2020
Revenue from External Customer [Line Items]
Net revenue	$ 420.5	$ 357.6	$ 793.2	$ 686.0
Mobile Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	76.3	103.1	154.7	230.3
PC Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	82.7	91.5	171.3	172.0
Internet of Things Product Applications [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 261.5	$ 163.0	$ 467.2	$ 283.7

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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