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Fair Value of Financial Instruments
12 Months Ended
Jan. 31, 2020
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments Fair Value of Financial Instruments
Fair value is the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Subsequent changes in fair value of these financial assets and liabilities are recognized in earnings or other comprehensive (loss) income when they occur. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which the Company would transact and the market-based risk measurement or assumptions that market participants would use in pricing the assets or liabilities, such as inherent risk, transfer restrictions, and credit risk.
The Company applies the following fair value hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:
Level 1 inputs are based on quoted prices in active markets for identical assets or liabilities. 
Level 2 inputs are based on observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated by observable market data for substantially the full term of the assets or liabilities. 
Level 3 inputs are based on unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities, and typically reflect management's estimates of assumptions that market participants would use in pricing the asset or liability.
The Company's assets measured at fair value on a recurring basis, by level, within the fair value hierarchy are as follows:
January 31, 2020
(in thousands)Level 1Level 2Level 3Total
Cash equivalents:
    Money market funds (1)
$190,774  $—  $—  $190,774  
Restricted Cash:
    Money market funds12,100  —  —  12,100  
Total cash equivalents and restricted cash$202,874  $—  $—  $202,874  

January 31, 2019
(in thousands)Level 1Level 2Level 3Total
Cash equivalents:
    Money market funds (1)
$42,021  $—  $—  $42,021  
Marketable securities:
    Corporate bonds—  16,921  —  16,921  
    U.S. treasury securities—  34,100  —  34,100  
Total cash equivalents and marketable securities$42,021  $51,021  $—  $93,042  
(1) Included in cash and cash equivalents on the consolidated balance sheets.
The Company's cash equivalents, restricted cash and marketable securities for the periods presented were valued using quoted market prices, or alternative pricing sources and models utilizing observable market inputs, and accordingly, were classified as Level 1 or Level 2, respectively.