Operating Segments and Geographic Information - Revenue by Geographic Area (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2022 USD ($) region	Jan. 02, 2021 USD ($) region	Jan. 01, 2022 USD ($) region	Jan. 02, 2021 USD ($) region
Information on reportable segments
Number of geographic regions | region	3	3	3	3
Total net revenue	$ 314.8	$ 299.9	$ 641.6	$ 584.6
Product revenue
Information on reportable segments
Total net revenue	277.4	262.1	566.5	510.0
Service revenue
Information on reportable segments
Total net revenue	37.4	37.8	75.1	74.6
United States
Information on reportable segments
Total net revenue	100.2	88.6	193.5	166.4
United States | Product revenue
Information on reportable segments
Total net revenue	87.4	74.4	167.3	138.1
United States | Service revenue
Information on reportable segments
Total net revenue	12.8	14.2	26.2	28.3
Other Americas
Information on reportable segments
Total net revenue	25.5	19.8	53.7	37.4
Other Americas | Product revenue
Information on reportable segments
Total net revenue	21.4	16.0	46.4	30.3
Other Americas | Service revenue
Information on reportable segments
Total net revenue	4.1	3.8	7.3	7.1
Total Americas
Information on reportable segments
Total net revenue	125.7	108.4	247.2	203.8
Total Americas | Product revenue
Information on reportable segments
Total net revenue	108.8	90.4	213.7	168.4
Total Americas | Service revenue
Information on reportable segments
Total net revenue	16.9	18.0	33.5	35.4
Greater China
Information on reportable segments
Total net revenue	56.5	73.2	129.1	152.2
Greater China | Product revenue
Information on reportable segments
Total net revenue	54.4	69.9	124.2	147.2
Greater China | Service revenue
Information on reportable segments
Total net revenue	2.1	3.3	4.9	5.0
Other Asia-Pacific
Information on reportable segments
Total net revenue	34.5	23.2	88.2	52.4
Other Asia-Pacific | Product revenue
Information on reportable segments
Total net revenue	29.6	20.0	79.1	45.4
Other Asia-Pacific | Service revenue
Information on reportable segments
Total net revenue	4.9	3.2	9.1	7.0
Total Asia-Pacific
Information on reportable segments
Total net revenue	91.0	96.4	217.3	204.6
Total Asia-Pacific | Product revenue
Information on reportable segments
Total net revenue	84.0	89.9	203.3	192.6
Total Asia-Pacific | Service revenue
Information on reportable segments
Total net revenue	7.0	6.5	14.0	12.0
Switzerland
Information on reportable segments
Total net revenue	11.7	19.9	24.9	37.9
Switzerland | Product revenue
Information on reportable segments
Total net revenue	11.6	19.8	24.7	37.7
Switzerland | Service revenue
Information on reportable segments
Total net revenue	0.1	0.1	0.2	0.2
Other EMEA
Information on reportable segments
Total net revenue	86.4	75.2	152.2	138.3
Other EMEA | Product revenue
Information on reportable segments
Total net revenue	73.0	62.0	124.8	111.3
Other EMEA | Service revenue
Information on reportable segments
Total net revenue	13.4	13.2	27.4	27.0
Total EMEA
Information on reportable segments
Total net revenue	98.1	95.1	177.1	176.2
Total EMEA | Product revenue
Information on reportable segments
Total net revenue	84.6	81.8	149.5	149.0
Total EMEA | Service revenue
Information on reportable segments
Total net revenue	$ 13.5	$ 13.3	$ 27.6	$ 27.2