Fair Value Measurements - Financial Instruments at Fair Value (Details) - Measured at fair value on a recurring basis - USD ($) $ in Millions	Apr. 03, 2021	Dec. 31, 2020
Level 1
Assets:
Investment securities	$ 2.9	$ 2.5
Foreign currency forward contracts	0.0	0.0
Cross-currency swap	0.0	0.0
Total assets	2.9	2.5
Liabilities:
Foreign currency forward contracts	0.0	0.0
Total liabilities	0.0	0.0
Level 2
Assets:
Investment securities	0.0	0.0
Foreign currency forward contracts	7.2	9.8
Cross-currency swap	5.7	6.3
Total assets	12.9	16.1
Liabilities:
Foreign currency forward contracts	6.5	7.9
Total liabilities	6.5	7.9
Level 3
Assets:
Investment securities	0.0	0.0
Foreign currency forward contracts	0.0	0.0
Cross-currency swap	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Foreign currency forward contracts	0.0	0.0
Total liabilities	$ 0.0	$ 0.0