Accumulated Other Comprehensive (Loss) Income - Changes in OCI (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	$ 1,816.4	$ 1,750.9	$ 1,787.9
Balance, value	1,791.2	1,816.4	1,750.9
Net unrealized foreign currency translation gain (loss)	18.7	(10.2)	(14.9)
Net unrealized foreign currency translation gain	18.7	(10.2)	(14.9)
Changes in Fair Value of Effective Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	5.4	11.9
Other comprehensive income (loss) before reclassifications	(7.7)	1.5
Amounts reclassified from accumulated other comprehensive loss	0.9	(8.0)
Net current period other comprehensive (loss) income	(6.8)	(6.5)
Balance, value	(1.4)	5.4	11.9
Foreign Currency Translation Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(25.4)	(14.8)
Other comprehensive income (loss) before reclassifications	18.7	(10.6)
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0
Net current period other comprehensive (loss) income	18.7	(10.6)
Balance, value	(6.7)	(25.4)	(14.8)
Net unrealized foreign currency translation gain (loss)	5.6	2.2
Net unrealized foreign currency translation gain	0.0	0.4
Retirement Benefit Adjustment
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(24.2)	(20.1)
Other comprehensive income (loss) before reclassifications	0.5	(5.3)
Amounts reclassified from accumulated other comprehensive loss	1.2	1.2
Net current period other comprehensive (loss) income	1.7	(4.1)
Balance, value	(22.5)	(24.2)	(20.1)
Accumulated Other Comprehensive Income (Loss)
Changes in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, value	(44.2)	(23.0)	2.6
Other comprehensive income (loss) before reclassifications	11.5	(14.4)
Amounts reclassified from accumulated other comprehensive loss	2.1	(6.8)
Net current period other comprehensive (loss) income	13.6	(21.2)
Balance, value	(30.6)	(44.2)	(23.0)
Net unrealized foreign currency translation gain	$ 18.7	$ (10.6)	$ (14.0)

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Amount after tax, before 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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