Debt - Foreign exchange gains and losses (Details) - Secured debt - Euro Term Loan - USD ($) $ in Millions	3 Months Ended
Mar. 28, 2020	Mar. 30, 2019
Debt Instrument
Gain recognized in statement of operations	$ 4.9	$ 13.4
Gain recognized in OCI	1.5	0.7
Total gain	$ 6.4	$ 14.1

Amount before tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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