Earnings Per Share and Equity - Schedule of Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
Apr. 03, 2020	Mar. 29, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate purchase price	$ 65.4	$ 75.0
Fees, commissions and other expenses	0.1	0.1
Less: Ending accrued share repurchases	0.0	(0.8)
Total cash used for share repurchases	$ 65.4	$ 75.0
Treasury shares reissued or retired during period	0
Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of repurchased shares	3,600,000	4,400,000
Aggregate purchase price	$ 65.3	$ 75.7
Weighted-average purchase price per share (in dollars per share )	$ 18.08	$ 17.17

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Treasury Stock, Fees Commissions and Other Expenses

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Total cost of shares repurchased divided by the total number of shares repurchased.

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