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Fair Value Measurements
3 Months Ended
Apr. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the reporting date. The accounting guidance establishes a three-tiered hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value as follows:

Level 1 Inputs: Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.

Level 2 Inputs: Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.

Level 3 Inputs: Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date.
The following table presents the fair value hierarchy for the Company’s assets measured at fair value on a recurring basis as of April 30, 2022 (in thousands):

Level 1
Level 2
Total
Cash equivalents:
Money market funds$744,931 $— $744,931 
Commercial paper— 98,839 98,839 
Corporate notes and bonds— 13,543 13,543 
Short-term investments:
Corporate notes and bonds— 1,621,164 1,621,164 
Commercial paper— 773,623 773,623 
U.S. government and agency securities— 206,221 206,221 
Certificates of deposit— 150,671 150,671 
Long-term investments:
Corporate notes and bonds— 829,568 829,568 
U.S. government and agency securities— 382,414 382,414 
Certificates of deposit— 396 396 
Total
$744,931 $4,076,439 $4,821,370 

The following table presents the fair value hierarchy for the Company’s assets measured at fair value on a recurring basis as of January 31, 2022 (in thousands):

Level 1
Level 2
Total
Cash equivalents:
Money market funds$722,492 $— $722,492 
Commercial paper— 77,794 77,794 
U.S. government securities— 36,995 36,995 
Corporate notes and bonds— 7,949 7,949 
Short-term investments:
Corporate notes and bonds— 1,662,436 1,662,436 
Commercial paper— 883,636 883,636 
U.S. government and agency securities— 116,712 116,712 
Certificates of deposit— 103,580 103,580 
Long-term investments:
Corporate notes and bonds— 935,603 935,603 
U.S. government and agency securities— 320,207 320,207 
Certificates of deposit— 397 397 
Total
$722,492 $4,145,309 $4,867,801 

The Company determines the fair value of its security holdings based on pricing from the Company’s service providers and market prices from industry-standard independent data providers. Such market prices may be quoted prices in active markets for identical assets (Level 1 inputs) or pricing determined using inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs), such as yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for the underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures.
Strategic Investments

The tables above do not include the Company’s strategic investments in non-marketable equity securities, which are recorded at fair value on a non-recurring basis using the Measurement Alternative, or the Company's strategic investments in marketable equity securities and non-marketable debt securities, which are recorded at fair value on a recurring basis.

The non-marketable equity and debt securities that the Company holds are valued using significant unobservable inputs or data in an inactive market. As a result, the Company classifies these assets as Level 3 within the fair value hierarchy. The estimation of fair value for the Company’s non-marketable equity securities requires the use of an observable transaction price and other unobservable inputs, including the volatility, rights, and obligations of the securities the Company holds. The marketable equity securities that the Company holds are valued using the quoted market price and are classified as Level 1 within the fair value hierarchy.

The following table presents the fair value hierarchy for the Company’s strategic investments measured at fair value as of April 30, 2022 (in thousands):

Level 1Level 3Total
Equity securities:
Non-marketable equity securities$— $192,860 $192,860 
Marketable equity securities25,787 — 25,787 
Debt securities:
Non-marketable debt securities— 2,250 2,250 
Total strategic investments—included in other assets$25,787 $195,110 $220,897 

The following table presents the fair value hierarchy for the Company’s strategic investments measured at fair value as of January 31, 2022 (in thousands):

Level 1Level 3Total
Equity securities:
Non-marketable equity securities$— $170,860 $170,860 
Marketable equity securities34,646 — 34,646 
Debt securities:
Non-marketable debt securities— 2,250 2,250 
Total strategic investments—included in other assets$34,646 $173,110 $207,756 

As of April 30, 2022, the cumulative amount of upward adjustments recognized on the Company’s strategic investments in non-marketable equity securities was $33.0 million. For each of the three months ended April 30, 2022 and 2021, there were no impairments, or upward or downward adjustments recorded related to these securities.

For the three months ended April 30, 2022, the Company recognized net unrealized losses of $8.9 million on its strategic investments in marketable equity securities. The Company did not have any strategic investments in marketable securities during the three months ended April 30, 2021.