Restructuring expenses (Textuals) (Details) $ in Thousands	9 Months Ended
	Mar. 28, 2020 USD ($) employee	Jun. 29, 2019 USD ($)
Minimum
Restructuring Cost and Reserve [Line Items]
Number of employee reductions under Severance charges | employee	400
Fiscal Year 2020 Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 37,072
Restructuring Reserve	10,915
Fiscal Year 2020 Restructuring Liabilities | Electronic Components
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	28,900
Fiscal Year 2020 Restructuring Liabilities | Farnell
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	6,300
Fiscal Year 2020 Restructuring Liabilities | Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,900
Fiscal Year 2019 And Prior Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 6,418	$ 26,918