Basis of presentation and new accounting pronouncements (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jul. 03, 2021
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Allowance for credit losses	$ 65,018	$ 88,160
ASU 2016-13 | Cumulative Effect, Adjustment
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Allowance for credit losses	17,200	$ 17,205
Allowance for credit losses net of tax	14,500
Allowance for credit losses tax	$ 2,700