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Income Taxes (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 29, 2012 | Dec. 31, 2011 | Jan. 01, 2011
Current: |  |  |
Domestic | $ 21,084,000 | $ 14,468,000 | $ 10,824,000
International | (3,009,000) | 2,845,000 | 4,145,000
Total Current | 18,075,000 | 17,313,000 | 14,969,000
Deferred: |  |  |
Domestic | 5,444,000 | (70,000) | (192,000)
International | (719,000) | (375,000) | (360,000)
Total Deferred | 4,725,000 | (445,000) | (552,000)
Provision for income taxes | 22,800,000 | 16,868,000 | 14,417,000
Effective income tax rate reconciliation |  |  |
Federal statutory rate (as a percent) | 35.00% | 35.00% | 35.00%
Foreign tax rate benefit (as a percent) | (11.80%) | (11.00%) | (15.60%)
Research and development tax credits (as a percent) | (0.50%) | (8.50%) | (6.10%)
Release of prior year unrecognized tax benefits (as a percent) | (8.40%) |  | (3.60%)
Intercompany technology license (as a percent) | 11.80% | 10.40% | 4.40%
Excess officer compensation (as a percent) | 1.00% | 3.20% | 2.00%
Nondeductible acquisition costs (as a percent) |  | 2.90% |
Other (as a percent) | (0.70%) | 0.20% | 0.30%
Effective income tax rate (as a percent) | 26.40% | 32.20% | 16.40%
Income before income taxes, related to foreign operations | 5,900,000 | 4,100,000 | 40,100,000
Undistributed earnings of foreign subsidiaries | 279,800,000 |  |
Deferred tax assets: |  |  |
Net operating loss carryforwards | 35,847,000 | 21,479,000 |
Research and development tax credit carryforwards | 8,447,000 | 5,556,000 |
Stock-based compensation | 8,133,000 | 9,963,000 |
Depreciation and amortization |  | 33,334,000 |
Capitalized research and development | 9,708,000 | 1,428,000 |
Deferred income on shipments to distributors | 3,933,000 | 3,895,000 |
Accrued liabilities and other | 7,503,000 | 7,305,000 |
Deferred tax assets | 73,571,000 | 82,960,000 |
Less: Valuation allowance | (2,114,000) |  |
Deferred tax assets, net | 71,457,000 | 82,960,000 |
Deferred tax liabilities: |  |  |
Acquired intangibles | 28,653,000 | 18,562,000 |
Long term obligations for tax purposes |  | 33,023,000 |
Depreciation and amortization | 1,076,000 |  |
Prepaid expenses and other | 1,447,000 | 913,000 |
Deferred tax liabilities | 31,176,000 | 52,498,000 |
Net deferred tax assets | $ 40,281,000 | $ 30,462,000 |

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