Income Tax (Benefit) Expense - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Income Tax Disclosure [Abstract]
Unrecognized tax benefits at beginning of year	$ 12.5	$ 10.5	$ 9.2
Additions based on tax positions taken during a prior period	0.2	0.5	0.2
Reductions based on tax positions taken during a prior period	(0.2)	(0.9)
Settlement on tax positions taken during a prior period	(0.6)	(0.8)	(1.2)
Lapse in statute of limitations	(1.8)
Additions based on tax positions taken during the current period	1.9	3.9	2.4
Foreign exchange	(0.5)	(0.7)	(0.1)
Unrecognized tax benefits at end of year	$ 11.5	$ 12.5	$ 10.5

Unrecognized tax benefit expense foreign exchange.

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- Definition

Unrecognized tax benefits, resulting from settlements with taxing authorities prior period tax positions.

+ References

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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