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Income Taxes (Tables) | 12 Months Ended
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Dec. 28, 2019
Income Tax Disclosure [Abstract] |
Components of Income Before Provision for Income Taxes | The components of income before provision for income taxes are as follows (in thousands):
| Year Ended December 28, 2019 |  | Year Ended December 29, 2018 |  | Year Ended December 30, 2017
United States | $ | 181,664 |  |  | $ | 173,848 |  |  | $ | 159,245 |
Foreign | 52,502 |  |  | 39,928 |  |  | 26,555 |
Total | $ | 234,166 |  |  | $ | 213,776 |  |  | $ | 185,800 |
Current and Deferred Provision (Benefit) for Income Taxes | The following table presents the current and deferred provision (benefit) for income taxes (in thousands):
| Year Ended December 28, 2019 |  | Year Ended December 29, 2018 |  | Year Ended December 30, 2017
Current: |  |  |  |  |
Federal | $ | 30,218 |  |  | $ | 20,418 |  |  | $ | 38,777 |
State | 5,273 |  |  | 3,075 |  |  | 1,940 |
Foreign | 8,424 |  |  | 5,014 |  |  | 3,018 |
Subtotal | $ | 43,915 |  |  | $ | 28,507 |  |  | $ | 43,735 |
Deferred: |  |  |  |  |
Federal | $ | (3,732 | ) |  | $ | (6,678 | ) |  | $ | 20,735 |
State | (1,985 | ) |  | (1,258 | ) |  | (3,420 | )
Foreign | (248 | ) |  | (338 | ) |  | (39 | )
Subtotal | (5,965 | ) |  | (8,274 | ) |  | 17,276 |
Total | $ | 37,950 |  |  | $ | 20,233 |  |  | $ | 61,011 |
Reconciliation of U.S. Federal Statutory Tax Rate to Company's Effective Tax Rate | The reconciliation of the U.S. federal statutory tax rate to the Company’s effective tax rate is as follows:
| Year Ended December 28, 2019 |  | Year Ended December 29, 2018 |  | Year Ended December 30, 2017
Statutory regular federal income tax rate | 21.0 | % |  | 21.0 | % |  | 35.0 | %
State provision, net of federal benefit | 1.1 |  |  | 0.7 |  |  | (0.6 | )
Nondeductible executive compensation | 2.1 |  |  | 1.9 |  |  | 1.3 |
Research and development tax credits | (1.1 | ) |  | (1.4 | ) |  | (2.2 | )
Foreign income taxed at different rates | (1.7 | ) |  | (2.0 | ) |  | (3.4 | )
U.S. tax on foreign income, net | 0.1 |  |  | 0.7 |  |  | — |
Impact of 2017 Tax Act | — |  |  | 0.1 |  |  | 18.8 |
Withholding taxes on undistributed foreign earnings, net | — |  |  | (0.6 | ) |  | 3.5 |
Excess stock-based compensation | (6.0 | ) |  | (9.4 | ) |  | (20.3 | )
Derecognition of uncertain tax position | — |  |  | (1.5 | ) |  | — |
Other | 0.7 |  |  | — |  |  | 0.7 |
Total | 16.2 | % |  | 9.5 | % |  | 32.8 | %
Components of Deferred Tax Assets | The components of the deferred tax assets are as follows (in thousands):
| December 28, 2019 |  | December 29, 2018
Deferred tax assets: |  |  |
Tax credits | $ | 6,438 |  |  | $ | 5,672 |
Deferred revenue | 13,948 |  |  | 331 |
Accrued liabilities | 13,273 |  |  | 12,645 |
Stock-based compensation | 7,926 |  |  | 6,615 |
Operating lease assets | 4,174 |  |  | — |
Other | 1,591 |  |  | — |
Total | 47,350 |  |  | 25,263 |
Valuation allowance | — |  |  | — |
Total deferred tax assets | $ | 47,350 |  |  | $ | 25,263 |
Deferred tax liabilities: |  |  |
Property and equipment | $ | (6,604 | ) |  | $ | (2,504 | )
State taxes and other | (1,152 | ) |  | (857 | )
Withholding taxes on undistributed foreign earnings | (2,829 | ) |  | (2,803 | )
Operating lease liabilities | (3,845 | ) |  | — |
Other | — |  |  | (845 | )
Total deferred tax liabilities | (14,430 | ) |  | (7,009 | )
Net deferred tax assets | $ | 32,920 |  |  | $ | 18,254 |
Reconciliation of Total Amounts of Unrecognized Tax Benefits | The following is a tabular reconciliation of the total amounts of unrecognized tax benefits (in thousands):
| Year Ended December 28, 2019 |  | Year Ended December 29, 2018
Unrecognized tax benefits (gross), beginning of period | $ | 15,412 |  |  | $ | 16,157 |
Increase from tax positions in prior period | 81 |  |  | 701 |
Increase from tax positions in current period | 2,636 |  |  | 2,633 |
Settlements | — |  |  | (33 | )
Lapse of statute of limitations | (1,120 | ) |  | (4,046 | )
Unrecognized tax benefits (gross), end of period | $ | 17,009 |  |  | $ | 15,412 |

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