Fair value measurements	3 Months Ended
Fair value measurements	Apr. 30, 2020
Fair Value Disclosures [Abstract]
Fair value measurements	Fair value measurements The carrying value of the Company’s short-term financial instruments, including accounts receivable and accounts payable approximate fair value due to the short-term nature of these instruments. The Company uses certain derivative financial instruments as part of its risk management strategy to reduce its foreign currency risk. The Company recognizes all derivatives on the balance sheet at fair value based on quotes obtained from financial institutions. The fair value of its foreign currency contracts as of April 30, 2020 was a liability of $603, which is included in accrued expenses on the accompanying balance sheet. The fair value of its foreign currency contracts as of January 31, 2020 was an asset of $58, which is included in prepaid and other current assets on the accompanying balance sheet. The fair value of the foreign currency contracts are considered Level 2 in the fair value hierarchy as of April 30, 2020 and January 31, 2020, respectively. As the Company refinanced all of its debt on February 28, 2019 (See Note 6) and again on May 5, 2020 (See Note 16), it believes that the face value of its outstanding debt at April 30, 2020 and January 31, 2020 approximates fair value. The Company did not have any transfers of assets and liabilities between levels of the fair value measurement hierarchy during the three months ended April 30, 2020 and 2019. The Company’s cash and cash equivalents includes money market funds of $62,492 which is measured at fair value. The Company consider these investments within Level 1 of the fair value hierarchy.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.