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Pension Plans - Summary of Amounts Included in Accumulated Other Comprehensive Income Loss (Detail) - USD ($) $ in Millions	Jan. 02, 2016	Jan. 03, 2015
Compensation and Retirement Disclosure [Abstract]
Net loss, net of tax of $141.4 million and $134.9 million, respectively	$ (253.7)	$ (247.4)
Prior service credit, net of tax of $1.7 million and $2.0 million, respectively	2.8	3.5
Amounts included in accumulated other comprehensive income (loss)	$ (250.9)	$ (243.9)

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- Definition

Pension and other postretirement benefit plans, accumulated other comprehensive income (loss), net of tax

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

After tax net amount of gain (loss) that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases (decreases) in other comprehensive income as they arise.

+ References

No definition available.

+ Details

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- Definition

Amount after tax of cost (credit) due to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as a component of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Prior Service Cost
-URI http://asc.fasb.org/extlink&oid=49177896

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