Income Taxes	6 Months Ended
Jul. 02, 2021
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The Company determines its estimated annual effective tax rate at the end of each interim period based on full-year forecasted pre-tax income and facts known at that time. The estimated annual effective tax rate is applied to the year-to-date pre-tax income at the end of each interim period with the cumulative effect of any changes in the estimated annual effective tax rate being recorded in the fiscal quarter in which the change is determined. The tax effect of significant unusual items is reflected in the period in which they occur. Since the Company is incorporated in Canada, it is required to use Canada’s statutory tax rate of 29.0% in the determination of the estimated annual effective tax rate. The Company maintains a valuation allowance on balances of certain U.S. state net operating losses and certain non-U.S. tax attributes that the Company has determined are more likely than not to be realized. A valuation allowance is required when, based upon an assessment of various factors, including recent operating loss history, anticipated future earnings, and prudent and reasonable tax planning strategies, it is more likely than not that some portion of the deferred tax assets will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of releasing the valuation allowance currently in place on its deferred tax assets. The Company’s effective tax rate of 19.2% for the three months ended July 2, 2021 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, other tax credits, and a release of uncertain tax position reserves, partially offset by the revaluation of long term deferred tax balances resulting from the UK corporate tax rate change. The Company’s effective tax rate of 3.5% for the six months ended July 2, 2021 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, other tax credits, a release of uncertain tax position reserves, and windfall tax benefits upon vesting of certain share-based compensation awards, partially offset by the revaluation of long term deferred tax balances resulting from the UK corporate tax rate change during the period. For the six months ended July 2, 2021, the windfall tax benefits upon vesting of certain share-based compensation awards had a benefit of 14.7% on the Company’s effective tax rate. The Company’s effective tax rate of 0.3% for the three months ended July 3, 2020 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions and other tax credits, and a release of a portion of the valuation allowance. For the three months ended July 3, 2020, the valuation allowance release had a benefit of 11.4% on the Company’s effective tax rate. The Company’s effective tax rate of (0%) for the six months ended July 3, 2020 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions and other tax credits, windfall tax benefits upon vesting of certain share-based compensation awards during the period, and a release of a portion of the valuation allowance. For the six months ended July 3, 2020, the windfall tax benefits upon vesting of certain share-based compensation awards and the valuation allowance release had a benefit of 11.2% and 5.7%, respectively, on the Company’s effective tax rate.

Income Taxes

6 Months Ended

Jul. 02, 2021

12. Income Taxes

The Company determines its estimated annual effective tax rate at the end of each interim period based on full-year forecasted pre-tax income and facts known at that time. The estimated annual effective tax rate is applied to the year-to-date pre-tax income at the end of each interim period with the cumulative effect of any changes in the estimated annual effective tax rate being recorded in the fiscal quarter in which the change is determined. The tax effect of significant unusual items is reflected in the period in which they occur. Since the Company is incorporated in Canada, it is required to use Canada’s statutory tax rate of 29.0% in the determination of the estimated annual effective tax rate.

The Company maintains a valuation allowance on balances of certain U.S. state net operating losses and certain non-U.S. tax attributes that the Company has determined are more likely than not to be realized. A valuation allowance is required when, based upon an assessment of various factors, including recent operating loss history, anticipated future earnings, and prudent and reasonable tax planning strategies, it is more likely than not that some portion of the deferred tax assets will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of releasing the valuation allowance currently in place on its deferred tax assets.

The Company’s effective tax rate of 19.2% for the three months ended July 2, 2021 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, other tax credits, and a release of uncertain tax position reserves, partially offset by the revaluation of long term deferred tax balances resulting from the UK corporate tax rate change.

The Company’s effective tax rate of 3.5% for the six months ended July 2, 2021 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions, other tax credits, a release of uncertain tax position reserves, and windfall tax benefits upon vesting of certain share-based compensation awards, partially offset by the revaluation of long term deferred tax balances resulting from the UK corporate tax rate change during the period. For the six months ended July 2, 2021, the windfall tax benefits upon vesting of certain share-based compensation awards had a benefit of 14.7% on the Company’s effective tax rate.

The Company’s effective tax rate of 0.3% for the three months ended July 3, 2020 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions and other tax credits, and a release of a portion of the valuation allowance. For the three months ended July 3, 2020, the valuation allowance release had a benefit of 11.4% on the Company’s effective tax rate.

The Company’s effective tax rate of (0%) for the six months ended July 3, 2020 differs from the Canadian statutory tax rate of 29.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, estimated deductions for Foreign Derived Intangible Income, U.K. patent box deductions and other tax credits, windfall tax benefits upon vesting of certain share-based compensation awards during the period, and a release of a portion of the valuation allowance. For the six months ended July 3, 2020, the windfall tax benefits upon vesting of certain share-based compensation awards and the valuation allowance release had a benefit of 11.2% and 5.7%, respectively, on the Company’s effective tax rate.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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