Restructuring expenses (Textuals) (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017 USD ($) employee	Jul. 01, 2017 USD ($)
Fiscal Year 2018 Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 21,286
Restructuring Reserve	17,596
Fiscal Year 2018 Restructuring Liabilities | Electronic Components
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	17,700
Fiscal Year 2018 Restructuring Liabilities | Premier Farnell
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	2,400
Fiscal Year 2018 Restructuring Liabilities | Business Support
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 1,200
Fiscal Year 2018 Restructuring Liabilities | Minimum
Restructuring Cost and Reserve [Line Items]
Number of employee reductions under Severance charges | employee	461
Fiscal Year 2017 Restructuring Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 7,881	$ 12,262