Restructuring expenses (Textuals) (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2018 USD ($) employee	Jul. 01, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of employee reductions under Severance charges | employee	700
Fiscal Year 2018 Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 40,082
Restructuring Reserve	7,827
Fiscal Year 2018 Restructuring Liabilities | Electronic Components
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	33,500
Fiscal Year 2018 Restructuring Liabilities | Premier Farnell
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	4,800
Fiscal Year 2018 Restructuring Liabilities | Business Support
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1,800
Fiscal Year 2017 Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 1,160	$ 12,262