Operating Segments and Geographic Information - Revenue by Geographic Area (Details) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2022 USD ($) region	Jan. 01, 2022 USD ($) region	Dec. 31, 2022 USD ($) region	Jan. 01, 2022 USD ($) region
Information on reportable segments
Number of geographic regions | region	3	3	3	3
Total net revenue	$ 284.5	$ 314.8	$ 594.7	$ 641.6
Product revenue
Information on reportable segments
Total net revenue	241.5	277.4	509.2	566.5
Service revenue
Information on reportable segments
Total net revenue	43.0	37.4	85.5	75.1
United States
Information on reportable segments
Total net revenue	92.5	100.2	189.1	193.5
United States | Product revenue
Information on reportable segments
Total net revenue	77.5	87.4	158.5	167.3
United States | Service revenue
Information on reportable segments
Total net revenue	15.0	12.8	30.6	26.2
Other Americas
Information on reportable segments
Total net revenue	13.8	25.5	40.2	53.7
Other Americas | Product revenue
Information on reportable segments
Total net revenue	10.3	21.4	33.4	46.4
Other Americas | Service revenue
Information on reportable segments
Total net revenue	3.5	4.1	6.8	7.3
Total Americas
Information on reportable segments
Total net revenue	106.3	125.7	229.3	247.2
Total Americas | Product revenue
Information on reportable segments
Total net revenue	87.8	108.8	191.9	213.7
Total Americas | Service revenue
Information on reportable segments
Total net revenue	18.5	16.9	37.4	33.5
Greater China
Information on reportable segments
Total net revenue	60.7	56.5	126.3	129.1
Greater China | Product revenue
Information on reportable segments
Total net revenue	58.9	54.4	122.4	124.2
Greater China | Service revenue
Information on reportable segments
Total net revenue	1.8	2.1	3.9	4.9
Other Asia-Pacific
Information on reportable segments
Total net revenue	44.4	34.5	90.4	88.2
Other Asia-Pacific | Product revenue
Information on reportable segments
Total net revenue	36.7	29.6	76.7	79.1
Other Asia-Pacific | Service revenue
Information on reportable segments
Total net revenue	7.7	4.9	13.7	9.1
Total Asia-Pacific
Information on reportable segments
Total net revenue	105.1	91.0	216.7	217.3
Total Asia-Pacific | Product revenue
Information on reportable segments
Total net revenue	95.6	84.0	199.1	203.3
Total Asia-Pacific | Service revenue
Information on reportable segments
Total net revenue	9.5	7.0	17.6	14.0
Switzerland
Information on reportable segments
Total net revenue	11.5	11.7	29.0	24.9
Switzerland | Product revenue
Information on reportable segments
Total net revenue	11.4	11.6	28.8	24.7
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	61.6	86.4	119.7	152.2
Other EMEA | Product revenue
Information on reportable segments
Total net revenue	46.7	73.0	89.4	124.8
Other EMEA | Service revenue
Information on reportable segments
Total net revenue	14.9	13.4	30.3	27.4
Total EMEA
Information on reportable segments
Total net revenue	73.1	98.1	148.7	177.1
Total EMEA | Product revenue
Information on reportable segments
Total net revenue	58.1	84.6	118.2	149.5
Total EMEA | Service revenue
Information on reportable segments
Total net revenue	$ 15.0	$ 13.5	$ 30.5	$ 27.6