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Retirement Plans - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)	Jan. 02, 2016 USD ($)	Jan. 03, 2015 USD ($)
Schedule Of Other Postretirement Benefits [Line Items]
Deferred compensation agreement, minimum	15 years
Deferred compensation agreement, maximum	18 years
Cash surrender value of life insurance	$ 56.6	$ 64.6
Defined contribution plan cost recognized	4.0	4.6	$ 4.7
Defined contribution plan at foreign subsidiary	1.1	1.5	$ 1.2
Deferred recognized compensation liability	1.1	1.9
Accumulated benefit obligations for all defined benefit pension plans and the SERP	396.3	375.5
Actuarial loss included in accumulated other comprehensive income (loss)	$ 9.8
Amortization of Unrecognized net actuarial losses exceeding certain corridors period	5 years
Equity securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	65.00%
Fixed income securities [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Target investment allocation	35.00%
Pension [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	3
Expected contributions to defined benefit plans	$ 2.8
Defined Contribution Plan Type [Domain]
Schedule Of Other Postretirement Benefits [Line Items]
Number Of Retirement Plans	2
SERP [Member]
Schedule Of Other Postretirement Benefits [Line Items]
Cash surrender value of life insurance	$ 50.1	$ 58.4
Expected contributions to defined benefit plans	$ 3.8

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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Target allocation of investments of this type to total plan assets presented on a weighted average basis.

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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The amount of the cost recognized during the period for defined contribution plans.

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The obligation relating to a benefit plan at a foreign location that provides for retirement benefits based on years of service.

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Contributions to certain defined contribution plans at foreign subsidiaries.

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Number of retirement plans sponsored by the Company.

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