Income Tax	6 Months Ended
Aug. 03, 2019
Income Tax Disclosure [Abstract]
Income Tax	Income Tax The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The Company’s quarterly tax provision, and estimate of its annual effective tax rate, is subject to variation due to several factors, including variability in accurately predicting our pre-tax income or loss and the mix of jurisdictions to which they relate, intercompany transactions, the applicability of special tax regimes, changes in how we do business, and acquisitions, as well as the integration of such acquisitions. The Company’s estimated effective tax rate for the year differs from the U.S. statutory rate of 21% primarily due to a substantial portion of its earnings being taxed at rates lower than the U.S. statutory rate. The Company's effective tax rate was adversely affected by pre-tax losses in certain non-U.S. tax jurisdictions that are subject to tax rates that are lower than 21%. These losses reduce the Company's pre-tax income without a corresponding reduction in its tax expense, and therefore increase its effective tax rate. The income tax benefit of $10.5 million for the three months ended August 3, 2019 included a tax benefit from a net reduction in unrecognized tax benefits of $9.3 million, offset by $2.1 million of expense related to a change in the applicable statutory tax rate in one of the Company's more significant jurisdictions. The income tax benefit of $3.3 million for the six months ended August 3, 2019 included a tax benefit from a net reduction in unrecognized tax benefits of $12.5 million, offset by $9.9 million in tax due on amounts that were previously considered indefinitely reinvested. It is reasonably possible that the amount of unrecognized tax benefits could increase or decrease significantly due to changes in tax law in various jurisdictions, new tax audits and changes in the U.S. dollar as compared to foreign currencies within the next 12 months. Excluding these factors, uncertain tax positions may decrease by as much as $14.2 million from the lapse of statutes of limitation in various jurisdictions during the next 12 months. Government tax authorities from several non-U.S. jurisdictions are also examining the Company’s tax returns. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to its tax audits and that any settlement will not have a material effect on its results at this time. The Company operates under tax incentives in certain countries that may be extended if certain additional requirements are satisfied. The tax incentives are conditional upon meeting certain employment and investment thresholds. The impact of these tax incentives decreased foreign taxes by $1.6 million and $1.7 million, respectively for the three and six months ended August 3, 2019, and $0.5 million and $1.2 million for the three and six months ended August 4, 2018, respectively. The benefit of the tax incentives on net income per share was less than $0.01 per share for both the three and six months ended August 3, 2019 and August 4, 2018. The Company’s principal source of liquidity as of August 3, 2019 consisted of approximately $573 million of cash, cash equivalents and short-term investments, of which approximately $496 million was held by subsidiaries outside of Bermuda. The Company has not recognized a deferred tax liability on $173 million of these assets as those amounts are deemed to be indefinitely reinvested. The Company plans to use such amounts to fund various activities outside of Bermuda, including working capital requirements, capital expenditures for expansion, funding of future acquisitions or other financing activities.

The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that arise during the period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the estimated annual effective tax rate changes, the Company makes a cumulative adjustment in such period. The Company’s quarterly tax provision, and estimate of its annual effective tax rate, is subject to variation due to several factors, including variability in accurately predicting our pre-tax income or loss and the mix of jurisdictions to which they relate, intercompany transactions, the applicability of special tax regimes, changes in how we do business, and acquisitions, as well as the integration of such acquisitions.

The Company’s estimated effective tax rate for the year differs from the U.S. statutory rate of 21% primarily due to a substantial portion of its earnings being taxed at rates lower than the U.S. statutory rate. The Company's effective tax rate was adversely affected by pre-tax losses in certain non-U.S. tax jurisdictions that are subject to tax rates that are lower than 21%. These losses reduce the Company's pre-tax income without a corresponding reduction in its tax expense, and therefore increase its effective tax rate.

The income tax benefit of $10.5 million for the three months ended August 3, 2019 included a tax benefit from a net reduction in unrecognized tax benefits of $9.3 million, offset by $2.1 million of expense related to a change in the applicable statutory tax rate in one of the Company's more significant jurisdictions.

The income tax benefit of $3.3 million for the six months ended August 3, 2019 included a tax benefit from a net reduction in unrecognized tax benefits of $12.5 million, offset by $9.9 million in tax due on amounts that were previously considered indefinitely reinvested.

It is reasonably possible that the amount of unrecognized tax benefits could increase or decrease significantly due to changes in tax law in various jurisdictions, new tax audits and changes in the U.S. dollar as compared to foreign currencies within the next 12 months. Excluding these factors, uncertain tax positions may decrease by as much as $14.2 million from the lapse of statutes of limitation in various jurisdictions during the next 12 months. Government tax authorities from several non-U.S. jurisdictions are also examining the Company’s tax returns. The Company believes that it has adequately provided for any reasonably foreseeable outcomes related to its tax audits and that any settlement will not have a material effect on its results at this time.

The Company operates under tax incentives in certain countries that may be extended if certain additional requirements are satisfied. The tax incentives are conditional upon meeting certain employment and investment thresholds. The impact of these tax incentives decreased foreign taxes by $1.6 million and $1.7 million, respectively for the three and six months ended August 3, 2019, and $0.5 million and $1.2 million for the three and six months ended August 4, 2018, respectively. The benefit of the tax incentives on net income per share was less than $0.01 per share for both the three and six months ended August 3, 2019 and August 4, 2018.