Fair Value - Schedule of Fair Value, Assets and Liabilities Measured (Details) - USD ($) $ in Millions	Dec. 27, 2019	Dec. 28, 2018
Common Stock Purchase Obligation [Member]
Other liabilities:
Liabilities measured at fair value	$ 6.8	$ 8.5
Forward Contracts [Member]
Other assets:
Assets measured at fair value		0.2
Pension Obligation [Member]
Other liabilities:
Liabilities measured at fair value	4.4	3.5
Contingent Earn-out Liability [Member]
Other liabilities:
Liabilities measured at fair value	9.5	3.9
Significant Other Observable Inputs (Level 2) [Member] | Forward Contracts [Member]
Other assets:
Assets measured at fair value		0.2
Significant Unobservable Inputs (Level 3) [Member] | Common Stock Purchase Obligation [Member]
Other liabilities:
Liabilities measured at fair value	6.8	8.5
Significant Unobservable Inputs (Level 3) [Member] | Pension Obligation [Member]
Other liabilities:
Liabilities measured at fair value	4.4	3.5
Significant Unobservable Inputs (Level 3) [Member] | Contingent Earn-out Liability [Member]
Other liabilities:
Liabilities measured at fair value	$ 9.5	$ 3.9