Income Taxes	6 Months Ended
	Jul. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe Company determines its income tax provision for interim periods using an estimate of its annual effective tax rate adjusted for discrete items occurring during the periods presented. The Company recorded income tax expense of $0.2 million for each of the three and six months ended July 31, 2020, respectively and expense of $0.3 million and $0.9 million for the three and six months ended July 31, 2019, respectively. During the three months ended July 31, 2020, the Company's withholding taxes were lower as compared to the three months ended July 31, 2019. During the six months ended July 31, 2020, income tax expense decreased by $0.7 million, as compared to the six months ended July 31, 2019, primarily due to excess tax benefits from stock-based compensation deductions in the United Kingdom.The Company is subject to taxation in the United States and various other state and foreign jurisdictions. The material jurisdictions in which the Company is subject to potential examination include the United States, Israel, Argentina, and the United Kingdom. The Company is currently not under examination by the Internal Revenue Service (IRS) or by any local taxing authority for any tax years. All tax years remain open to examination by the IRS and local taxing authorities.