Employee Pension and Other Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Employee Defined Benefit Plans
Employer contributions			$ 2.4
Components of the net periodic cost for the pension and benefits plans
Cash outlays expected during current fiscal year	$ 7.9		7.9
Pension Benefit Plans
Components of the net periodic cost for the pension and benefits plans
Service cost	0.1	$ 0.1	0.2	$ 0.1
Interest cost	0.5	0.6	0.9	1.2
Expected return on plan assets	(0.4)	(0.4)	(0.8)	(0.8)
Amortization of net actuarial losses	0.8	0.4	1.5	1.0
Net periodic benefit cost	$ 1.0	$ 0.7	1.8	$ 1.5
U.K. Plan
Employee Defined Benefit Plans
Employer contributions			0.6
Other Plans
Employee Defined Benefit Plans
Employer contributions			$ 1.8