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Taxes on Income - Net Deferred Tax Asset (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 30, 2012 | Jan. 01, 2012
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Components Of Deferred Tax Assets And Liabilities [Line Items] |  |
Basis differences of property and equipment, assets | $ 0 | $ 0
Basis difference of intangible assets, assets | 0 | 0
Foreign currency loss, assets | 0 | 0
Net operating loss carryforwards, assets | 55,322 | 41,429
Valuation allowances on net operating loss carryforwards, assets | (4,603) | (4,892)
Federal tax credits, assets | 3,164 | 676
Deferred compensation, assets | 18,633 | 17,853
Basis difference of prepaids, accruals and reserves, assets | 10,894 | 8,919
Pensions, assets | 499 | 2,592
Tax effects of undistributed earnings from foreign subsidiaries not deemed to be indefinitely reinvested, assets | 0 | 0
Basis difference of other assets and liabilities, assets | 317 | 293
Total, assets | 84,226 | 66,870
Basis differences of property and equipment, liabilities | 9,985 | 10,397
Basis difference of intangible assets, liabilities | 426 | 402
Foreign currency loss, liabilities | 3,217 | 2,888
Net operating loss carryforwards, liabilities | 0 | 0
Valuation allowances on net operating loss carryforwards, liabilities | 0 | 0
Federal tax credits, liabilities | 0 | 0
Deferred compensation, liabilities | 0 | 0
Basis difference of prepaids, accruals and reserves, liabilities | 0 | 0
Pensions, liabilities | 0 | 0
Tax effects of undistributed earnings from foreign subsidiaries not deemed to be indefinitely reinvested, liabilities | 4,810 | 4,585
Basis difference of other assets and liabilities, liabilities | 0 | 0
Total, liabilities | $ 18,438 | $ 18,272

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