Goodwill and intangible assets Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2020	Apr. 02, 2022	Jul. 03, 2021
Finite-Lived Intangible Assets [Line Items]
Acquired amount		$ 420,915	$ 439,409
Accumulated Amortization		(404,940)	(410,870)
Net Book Value		15,975	28,539
Intangible asset impairment	$ 17,473
Customer Related [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired amount		311,226	324,416
Accumulated Amortization		(301,348)	(312,392)
Net Book Value		9,878	12,024
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired amount		54,569	57,184
Accumulated Amortization		(49,486)	(45,019)
Net Book Value		5,083	12,165
Technology and other
Finite-Lived Intangible Assets [Line Items]
Acquired amount		55,120	57,809
Accumulated Amortization		(54,106)	(53,459)
Net Book Value		$ 1,014	$ 4,350