Segment information (Property, plant and equipment, net, by geographic area) (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Jun. 29, 2019
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	$ 431,410	$ 452,171
Americas
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	200,201	213,802
United States
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	195,400	209,900
EMEA
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	195,683	200,379
Germany
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	86,400	95,200
United Kingdom
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	75,400	70,500
Belgium
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	23,300	25,200
Asia Pacific
Property, plant and equipment, net, by geographic area
Property, plant and equipment, net	$ 35,526	$ 37,990