Operating Segments and Geographic Information - Long-lived Assets by Geographic Region (Details) - USD ($) $ in Millions	Dec. 27, 2025	Jun. 28, 2025
Property, plant and equipment, net
Total property, plant and equipment, net	$ 813.5	$ 726.4
United States
Property, plant and equipment, net
Total property, plant and equipment, net	80.1	123.0
Thailand
Property, plant and equipment, net
Total property, plant and equipment, net	266.0	218.6
Japan
Property, plant and equipment, net
Total property, plant and equipment, net	182.9	144.3
United Kingdom
Property, plant and equipment, net
Total property, plant and equipment, net	121.9	109.4
China
Property, plant and equipment, net
Total property, plant and equipment, net	111.4	76.8
Other countries
Property, plant and equipment, net
Total property, plant and equipment, net	$ 51.2	$ 54.3