| Dec 31, 2011 | Dec 29, 2012 | Dec 28, 2013 | Dec 27, 2014 | Dec 26, 2015 | Dec 31, 2016 | Dec 30, 2017 | Dec 29, 2018 | Dec 28, 2019 | Dec 26, 2020 | Dec 25, 2021 | Dec 31, 2022 | Dec 30, 2023 | Dec 28, 2024 |
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| Net income | -66 | -36 | -58 | -19 | -2 | -7 | 41 | 104 | 39 | 79 | 84 | 51 | 82 | 70 |
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| Depreciation | - | - | - | - | - | - | 14 | 14 | 17 | 21 | 26 | 29 | 31 | 30 |
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| Amortization | - | - | - | - | - | - | - | - | - | 28 | 19 | 9 | 7 | 3 |
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| Amortization (accretion) of discount on investments | 0 | -0 | -0 | -0 | 0 | 0 | -0 | 0 | 0 | 0 | -0 | -0 | 3 | 3 |
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| Reduction Of Right-Of-Use Assets | - | - | - | - | - | - | - | - | 5 | 6 | 7 | 8 | 7 | 7 |
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| Stock-based compensation expense | -14 | 13 | 12 | 13 | 12 | 11 | 16 | 18 | 23 | 24 | 29 | 31 | 39 | 40 |
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| Deferred income tax benefit | 2 | -24 | 0 | 0 | -0 | -45 | -1 | -75 | 5 | -1 | 4 | -6 | -12 | -13 |
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| Gain on sale of business | - | - | -0 | - | - | - | - | - | - | - | - | - | 73 | 21 |
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| Inventory Write-down | -8 | 7 | 10 | 7 | 6 | 7 | 9 | 10 | 10 | 13 | 16 | 25 | 15 | 12 |
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| Acquired inventory step-up amortization | - | - | - | - | - | 10 | 1 | - | 0 | 1 | 1 | 0 | 1 | - |
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| Loss on disposal of long-lived assets | 0 | -0 | -0 | 0 | 1 | -0 | -1 | -0 | -0 | -0 | -0 | -0 | - | - |
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| Non-cash restructuring charges | - | - | - | - | - | - | - | - | - | - | 2 | 0 | - | 0 |
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| Foreign currency transaction losses | 0 | -1 | -1 | -2 | 0 | 0 | 2 | -0 | -0 | 1 | -2 | -2 | -2 | -2 |
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| Credit Loss on Debt Receivable | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
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| Accounts receivable | 17 | -5 | 2 | 16 | -8 | 7 | 11 | 14 | -0 | 4 | 9 | -26 | 23 | 2 |
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| Inventories | -1 | 1 | 8 | 12 | 8 | 12 | 16 | 21 | 14 | 22 | 32 | 29 | 9 | 8 |
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| Prepaid expenses and other current assets | 6 | -1 | -4 | 1 | -0 | 3 | -1 | -0 | -0 | 6 | -4 | 5 | 3 | -1 |
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| Other assets | 2 | -0 | -0 | -0 | -0 | 0 | -0 | -1 | 0 | -0 | 0 | -0 | 0 | -0 |
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| Accounts payable | 5 | -6 | -2 | 4 | -2 | 3 | 1 | 3 | -0 | 17 | -7 | 4 | 1 | -8 |
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| Accrued liabilities | 10 | -1 | -2 | 8 | -0 | 1 | 1 | -6 | 8 | 14 | -1 | -8 | -2 | 4 |
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| Other liabilities | - | - | - | - | - | - | - | - | - | 0 | 0 | -0 | 5 | 10 |
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| Deferred revenues | - | - | - | - | - | - | - | 0 | 3 | 9 | 2 | 1 | -10 | 3 |
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| Deferred grant | - | - | - | - | - | - | - | - | - | - | - | - | 18 | - |
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| Operating lease liabilities | - | - | - | - | - | - | - | - | - | - | -7 | -8 | -8 | -7 |
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| Net cash provided by operating activities | - | - | - | - | - | - | - | - | 121 | 169 | 139 | 132 | 65 | 118 |
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| Acquisition of property, plant and equipment | 8 | 8 | 9 | 6 | 9 | 12 | 18 | 20 | 21 | 56 | 66 | 65 | 56 | 38 |
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| Acquisition of business, net of cash acquired | - | 97 | - | - | - | 228 | - | - | 21 | 52 | - | 3 | - | - |
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| Proceeds from sale of business | - | - | -0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - | - | 102 | 22 |
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| Purchase of promissory note receivable | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 2 |
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| Purchases of marketable securities | - | - | - | - | - | - | - | 31 | 76 | 51 | 150 | 102 | 135 | 139 |
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| Proceeds from maturities and sales of marketable securities | 309 | 135 | 90 | 73 | 75 | 45 | 9 | 29 | 51 | 60 | 92 | 96 | 119 | 124 |
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| Net cash provided by (used in) investing activities | - | - | - | - | - | - | - | - | -66 | -99 | -125 | -76 | 29 | -33 |
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| Proceeds from issuances of common stock | 4 | 2 | 3 | 3 | 3 | 6 | 20 | 8 | 8 | 10 | 11 | 10 | 9 | 10 |
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| Purchase of common stock through stock repurchase program | 16 | - | - | - | 8 | - | 19 | - | - | - | 24 | 82 | 20 | 53 |
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| Tax withholdings related to net share settlements of equity awards | - | - | - | - | - | - | 7 | 6 | 8 | 15 | 21 | 16 | 11 | 20 |
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| Payments on term loan | - | - | - | - | - | 11 | 33 | 41 | 30 | 43 | 9 | 8 | 1 | 1 |
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| Net cash used in financing activities | - | - | - | - | - | - | - | - | -7 | -31 | -47 | -96 | -23 | -65 |
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| Effect of exchange rate changes on cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | - | - | - | -3 | -3 | -4 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | 47 | 43 | -36 | -42 | 68 | 16 |
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| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | - | - | - | - | - | - | 6 | 0 |
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| Change In Capital Expenditures Incurred But Not Yet Paid | - | - | - | - | - | - | -0 | 2 | 1 | 3 | 3 | 7 | -6 | 7 |
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| Income Taxes Paid, Net | - | -0 | -6 | 1 | 0 | 4 | 3 | 5 | 4 | 9 | 8 | 11 | 17 | 16 |
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| Cash paid for interest | - | - | - | - | - | - | - | 3 | 1 | 1 | 1 | 1 | 0 | 0 |
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| Operating Lease, Payments | - | - | - | - | - | - | - | - | 5 | 6 | 9 | 9 | 9 | 9 |
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