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v3.8.0.1

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions | Dec. 29, 2017 | Dec. 30, 2016
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Income Tax Disclosure [Abstract] |  |
Purchased intangibles | $ 69.8 | $ 91.9
Depreciation and amortization | 13.1 | 11.7
US residual tax on foreign earnings | 0.0 | 11.3
Total deferred tax liabilities | 82.9 | 114.9
Inventory valuation differences | 4.6 | 12.9
Expenses not currently deductible | 18.1 | 27.7
US federal tax credit carryforwards | 0.2 | 0.3
Deferred revenue | 5.8 | 6.9
US state tax credit carryforwards | 21.7 | 15.1
Accrued warranty | 2.0 | 3.1
US federal net operating loss carryforwards | 6.4 | 3.8
Foreign net operating loss carryforwards | 20.2 | 31.2
Stock-based compensation | 21.5 | 31.9
Deferred Tax Liabilities, Other | (4.4) |
Other |  | 4.1
Total deferred tax assets | 96.1 | 137.0
Valuation allowance | (25.2) | (30.6)
Total deferred tax assets | 70.9 | 106.4
Total deferred tax liabilities | (12.0) | (8.5)
Non-current deferred income tax assets | 28.4 | 30.3
Non-current deferred income tax liabilities | $ (40.4) | $ (38.8)

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