Leases - Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 29, 2020	Mar. 29, 2020
Cash used in operating activities:
Cash paid for operating leases		$ 4.8
Cash paid for interest portion of financing leases	$ 0.1	0.0
Cash used in financing activities:
Cash paid for principal portion of finance leases		0.4
Non-cash operating activities:
Operating lease additions due to adoption of ASC 842		12.2
Operating lease additions and modifications, net		4.7
Finance lease additions		$ 3.3