Stock-Based Compensation Plans - Summary of Stock-Based Compensation Expense by Type of Award (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Stock and Stock-Based Compensation Plans
Total Stock-based Compensation Expense	$ 2.4	$ 0.9	$ 4.5	$ 1.9
Performance-based Restricted Stock Units
Stock and Stock-Based Compensation Plans
Total Stock-based Compensation Expense	0.4	0.2	0.6	0.4
Restricted Stock Units and Awards
Stock and Stock-Based Compensation Plans
Total Stock-based Compensation Expense	1.8	0.7	3.5	1.5
Stock Options
Stock and Stock-Based Compensation Plans
Total Stock-based Compensation Expense	$ 0.2	$ 0.0	$ 0.4	$ 0.0