Income Taxes	3 Months Ended
Apr. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded a provision for income taxes of $0.5 million and $0.2 million for the three months ended April 30, 2018 and 2017, respectively. The provision for income taxes was primarily due to foreign taxes. [The provision for income taxes is based upon the estimated annual effective tax rates for the year applied to the current period income (loss) before tax plus the tax effect of any significant unusual items, discrete events or changes in tax law.] On December 22, 2017, the 2017 Tax Cuts and Jobs Act (the “Tax Act”) was enacted into law and the new legislation significantly revised the Internal Revenue Code of 1986, as amended. The newly enacted federal income tax law, among other things, contains significant changes to corporate taxation, including the reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of 21%, limitation of the deduction for newly generated net operating losses (“NOLs”) to 80% of current year taxable income and elimination of NOL carrybacks and one-time taxation of offshore earnings at reduced rates regardless of whether they are repatriated. The Company is required to recognize the effect of these significant tax law changes in the period of enactment. Also on December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Given the significant complexity of the Tax Act, anticipated guidance from the Internal Revenue Service about implementing the Tax Act, and the potential for additional guidance from the SEC or the FASB related to the Tax Act, the Company’s current estimates may be adjusted in future periods. The Company expects to complete its analysis within the measurement period in accordance with SAB 118. Any subsequent adjustments to current estimates will be recorded to tax expense during the quarter in the Company’s fiscal year ending January 31, 2019 in which the Company’s analysis of and accounting for the Tax Act is complete. The Company has not recorded any further adjustments during the three months ended April 30, 2018. For information on the Company’s initial provisional estimates recorded during the year ended January 31, 2018, refer to the Company’s 2018 Form 10-K, specifically Part II, Item 8, Financial Statements and Supplementary Data under Note 11, Income Taxes, in the Notes to Consolidated Financial Statements. For the Global Intangible Low-Taxed Income (“GILTI”) provisions of the Tax Act, the Company has not yet completed its assessment or elected an accounting policy to either recognize deferred taxes for basis differences expected to reverse as GILTI or to record GILTI as period costs if and when incurred. The Company assesses uncertain tax positions in accordance with ASC 740-10, Accounting for Uncertainties in Tax. As of April 30, 2018, the Company’s net unrecognized tax benefits totaled $4.3 million, none of which would impact the Company’s effective tax rate if recognized. The Company anticipates that the amount of reasonably possible unrecognized tax benefits that could decrease over the next 12 months due to the expiration of certain statutes of limitations and settlement of tax audits is not material to the Company’s interim unaudited condensed consolidated financial statements.

Income Taxes

The Company recorded a provision for income taxes of $0.5 million and $0.2 million for the three months ended April 30, 2018 and 2017, respectively. The provision for income taxes was primarily due to foreign taxes. [The provision for income taxes is based upon the estimated annual effective tax rates for the year applied to the current period income (loss) before tax plus the tax effect of any significant unusual items, discrete events or changes in tax law.]

On December 22, 2017, the 2017 Tax Cuts and Jobs Act (the “Tax Act”) was enacted into law and the new legislation significantly revised the Internal Revenue Code of 1986, as amended. The newly enacted federal income tax law, among other things, contains significant changes to corporate taxation, including the reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of 21%, limitation of the deduction for newly generated net operating losses (“NOLs”) to 80% of current year taxable income and elimination of NOL carrybacks and one-time taxation of offshore earnings at reduced rates regardless of whether they are repatriated. The Company is required to recognize the effect of these significant tax law changes in the period of enactment.

Also on December 22, 2017, the SEC staff issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”), which allows the Company to record provisional amounts during a measurement period not to extend beyond one year of the enactment date. Given the significant complexity of the Tax Act, anticipated guidance from the Internal Revenue Service about implementing the Tax Act, and the potential for additional guidance from the SEC or the FASB related to the Tax Act, the Company’s current estimates may be adjusted in future periods. The Company expects to complete its analysis within the measurement period in accordance with SAB 118. Any subsequent adjustments to current estimates will be recorded to tax expense during the quarter in the Company’s fiscal year ending January 31, 2019 in which the Company’s analysis of and accounting for the Tax Act is complete. The Company has not recorded any further adjustments during the three months ended April 30, 2018. For information on the Company’s initial provisional estimates recorded during the year ended January 31, 2018, refer to the Company’s 2018 Form 10-K, specifically Part II, Item 8, Financial Statements and Supplementary Data under Note 11, Income Taxes, in the Notes to Consolidated Financial Statements.

For the Global Intangible Low-Taxed Income (“GILTI”) provisions of the Tax Act, the Company has not yet completed its assessment or elected an accounting policy to either recognize deferred taxes for basis differences expected to reverse as GILTI or to record GILTI as period costs if and when incurred.

The Company assesses uncertain tax positions in accordance with ASC 740-10, Accounting for Uncertainties in Tax. As of April 30, 2018, the Company’s net unrecognized tax benefits totaled $4.3 million, none of which would impact the Company’s effective tax rate if recognized. The Company anticipates that the amount of reasonably possible unrecognized tax benefits that could decrease over the next 12 months due to the expiration of certain statutes of limitations and settlement of tax audits is not material to the Company’s interim unaudited condensed consolidated financial statements.