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Financial Statement Details - Accounts Receivable, Net (Details) - USD ($) $ in Millions	6 Months Ended
	Dec. 27, 2020	Dec. 29, 2019	Jun. 28, 2020
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Gross receivables	$ 82.7		$ 73.1
Allowance for bad debts	(0.7)		(0.7)
Accounts receivable, net	82.0		72.4
Lease asset and liability additions	1.2	$ 14.3
Royalties
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Gross receivables	0.5		0.4
Billed trade receivables
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Gross receivables	81.1		71.5
Unbilled contract receivables
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Gross receivables	$ 1.1		$ 1.2

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