Commitments and Contingencies (Details) £ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 28, 2019 USD ($)	Dec. 29, 2018 USD ($)	Dec. 28, 2019 GBP (£)	Jun. 29, 2019 USD ($)	Jul. 02, 2016 GBP (£)	Jun. 30, 2016 GBP (£)
Loss Contingencies [Line Items]
Guarantee liabilities	$ 0		$ 0			$ 0
Standby letters of credit	7,400,000		$ 7,400,000
Product Warranties
Warranty Term for most products			3 years
Changes in warranty reserve
Balance as of beginning of period	8,800,000	$ 9,000,000.0	$ 8,700,000	$ 8,200,000
Provision for warranty	900,000	1,000,000.0	1,300,000	1,400,000
Utilization of reserve	(800,000)	(1,500,000)	(1,800,000)	(2,700,000)
Adjustments related to pre-existing warranties (including changes in estimates)	300,000	700,000	1,000,000.0	2,300,000
Balance as of end of period	9,200,000	$ 9,200,000	9,200,000	$ 9,200,000
Performance bond
Loss Contingencies [Line Items]
Guarantee liabilities	1,000,000.0		1,000,000.0
Judicial ruling | Case related to amendment of pension for foreign subsidiary
Loss Contingencies [Line Items]
Loss contingency accrual	$ 8,500,000		$ 8,500,000		£ 6.5
Minimum | Judicial ruling | Case related to amendment of pension for foreign subsidiary
Loss Contingencies [Line Items]
Estimated liability (in pounds) | £								£ 5.7
Loss contingency accrual | £							£ 5.7
Maximum | Judicial ruling | Case related to amendment of pension for foreign subsidiary
Loss Contingencies [Line Items]
Estimated liability (in pounds) | £								£ 8.4