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INCOME TAXES (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2019 | Sep. 29, 2018 | Sep. 28, 2019 | Sep. 29, 2018
Uncertain Tax Benefits |  |  |  |
Gross unrecognized tax benefits | $ 20,100,000 |  | $ 20,100,000 |
Net unrecognized tax benefits | 15,000,000.0 |  | 15,000,000.0 |
Net unrecognized tax benefits that would impact effective tax rate if recognized | 10,300,000 |  | 10,300,000 |
Gross accrued interest | 4,500,000 |  | 4,500,000 |
Net accrued interest | 3,500,000 |  | 3,500,000 |
Penalties accrued | 0 |  | 0 |
Other Tax Matters |  |  |  |
Income tax provision | 2,800,000 | $ 1,700,000 | 11,500,000 | $ 6,200,000
Pre-tax income (loss) from continuing operations | $ 24,000,000.0 | $ 8,500,000 | $ 52,700,000 | $ 45,100,000
Effective income tax rate (as a percent) | 11.70% | 20.00% | 21.80% | 13.70%
Tax benefit from revision of estimate related to taxation of foreign earnings | $ 1,900,000 |  | $ 1,900,000 |
Excess tax benefits from stock-based compensation awards vested |  |  | (1,700,000) | $ (1,000,000.0)
Tax benefits related to U.S. tax credits and incentives |  |  | 1,300,000 |
Tax benefit related to reductions in valuation allowances |  |  |  | $ 1,700,000
Maximum |  |  |  |
Uncertain Tax Benefits |  |  |  |
Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, high end of range | $ 10,000,000.0 |  | $ 10,000,000.0 |

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