Leases - Lease Costs, Term, and Discount Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Leases [Abstract]
Finance lease cost, amortization of right-of-use assets	$ 0.0	$ 0.5	$ 16.3
Finance lease cost, interest	0.0	0.0	0.1
Operating lease cost	13.0	14.1	15.5
Short-term and variable lease cost	2.0	4.3	4.4
Sublease income	(3.0)	(2.8)	(2.6)
Total lease cost	$ 12.0	$ 16.1	$ 33.7
Weighted average remaining lease term (in years):
Operating leases	6 years 10 months 24 days	7 years 6 months	8 years 7 months 6 days
Finance leases			1 year
Weighted average discount rate (in percentages):
Operating leases	3.00%	3.50%	3.50%
Finance leases			4.40%