Debt - short-term debt (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 29, 2018	Jun. 30, 2018
Components of short-term debt
Debt, Current, Total	$ 1,845	$ 165,380
Bank credit facilities and other
Components of short-term debt
Short-term Debt, Weighted Average Interest Rate	2.86%	2.91%
Bank credit facilities and other	$ 1,845	$ 60,380
Accounts receivable securitization program
Components of short-term debt
Short-term Debt, Weighted Average Interest Rate		2.63%
Short-term debt		$ 105,000