A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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Accumulated Other Comprehensive (Loss) Income - Changes by Component (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 29, 2018	Mar. 31, 2018	Sep. 30, 2017	Jun. 30, 2018	Sep. 29, 2018	Sep. 30, 2017
AOCI Attributable to Parent
Balance		$ 885.7		$ 885.7	$ 885.7	$ 873.8
OCI before reclassifications					(26.8)	26.8
Amounts reclassified from AOCI					30.1	(1.6)
Total other comprehensive (loss) income	$ (0.6)	21.4	$ 4.2	3.9	3.3	25.2
Balance	1,214.1		873.8		1,214.1	873.8
Gains and Losses on Derivative Instruments
AOCI Attributable to Parent
Balance		(1.4)		(1.4)	(1.4)	(0.1)
OCI before reclassifications					(13.8)	1.2
Amounts reclassified from AOCI					3.8	(1.7)
Total other comprehensive (loss) income					(10.0)	(0.5)
Balance	(11.4)		(0.6)		(11.4)	(0.6)
Pension Benefit Plan Items
AOCI Attributable to Parent
Balance		(16.8)		(16.8)	(16.8)	(14.4)
OCI before reclassifications					0.0	(0.5)
Amounts reclassified from AOCI					16.9	0.1
Total other comprehensive (loss) income					16.9	(0.4)
Balance	0.1		(14.8)		0.1	(14.8)
Currency Translation Adjustment Items
AOCI Attributable to Parent
Balance		(76.2)		(76.2)	(76.2)	(103.4)
OCI before reclassifications					(13.0)	26.1
Amounts reclassified from AOCI					9.4	0.0
Total other comprehensive (loss) income					(3.6)	26.1
Balance	(79.8)		(77.3)		(79.8)	(77.3)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent
Balance		$ (94.4)		$ (94.4)	(94.4)	(117.9)
Balance	$ (91.1)		$ (92.7)		$ (91.1)	$ (92.7)