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Retirement Plans - Additional Information (Detail) $ in Millions | 12 Months Ended
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Jan. 02, 2016 USD ($) | Jan. 03, 2015 USD ($) | Dec. 28, 2013 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 | $ 64.6 | $ 59.5 |
Defined contribution plan cost recognized | 4.6 | 4.7 | $ 4.8
Defined contribution plan at foreign subsidiary | 1.5 | 1.2 | $ 1.5
Deferred recognized compensation liability | 1.9 | 2.2 |
Accumulated benefit obligations for all defined benefit pension plans and the SERP | 375.5 | 412.3 |
Prior service cost expected to be recognized in net periodic pension expense | 0.1 |  |
Actuarial loss included in accumulated other comprehensive income (loss) | $ 4.9 |  |
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 | $ 1.5 |  |
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 | $ 58.4 | $ 53.4 |
Expected contributions to defined benefit plans | $ 3.9 |  |

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