Basis of presentation and new accounting pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 29, 2018	Jun. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings	$ 3,139,272	$ 3,235,894
Other assets	188,226	$ 262,552
ASU 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative effect on retained earnings	2,000
ASU 2016-16
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings	(5,800)
Other assets	$ (5,800)

Amount of the cumulative effect on retained earnings net of related income tax effect.

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