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Fair Value Measurements
9 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value Measurements FAIR VALUE MEASUREMENTS
Factors used in determining the fair value of financial assets and liabilities are summarized into three broad categories:

Level 1 - observable inputs such as quoted prices (unadjusted) in active liquid markets for identical securities as of the reporting date;
Level 2 - other significant directly or indirectly observable inputs, including quoted prices for similar securities, interest rates, prepayment speeds and credit risk, or observable market prices in markets with insufficient volume and/or infrequent transactions; and
Level 3 - significant inputs that are generally unobservable inputs for which there is little or no market data available, including our own assumptions in determining fair value.
 
Assets and liabilities measured at fair value on a recurring basis were as follows (in thousands):
December 31, 2021
Level 1Level 2Level 3Total
Assets:
Derivatives
Foreign currency forward contracts$— $19 $— $19 
Total assets measured at fair value$— $19 $— $19 
Liabilities:
Derivatives
Foreign currency forward contracts$— $36 $— $36 
Total liabilities measured at fair value$— $36 $— $36 
March 31, 2021
Level 1Level 2Level 3Total
Assets:
Cash Equivalents
Money market funds$9,679 $— $— $9,679 
Total cash equivalents9,679 — — 9,679 
Available-for-Sale Securities
Commercial paper— 9,994 — 9,994 
Corporate bonds— 8,227 — 8,227 
U.S. government bonds— 55,227 — 55,227 
  Total available-for-sale securities— 73,448 — 73,448 
Total assets measured at fair value$9,679 $73,448 $— $83,127 
Liabilities:
Derivatives
Foreign currency forward contracts$— $672 $— $672 
Total liabilities measured at fair value$— $672 $— $672 

For our assets measured at fair value on a recurring basis, we recognize transfers between levels at the actual date of the event or change in circumstance that caused the transfer. There were no transfers between levels during the nine-month period ended December 31, 2021, nor for the year ended March 31, 2021.

We classify our marketable securities as available-for-sale and, accordingly, record them at fair value. Level 1 investment valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets. Level 2 investment valuations are obtained from inputs, other than quoted market prices in active markets for identical assets, that are directly or indirectly observable in the marketplace and quoted prices in markets with limited volume or infrequent transactions. The factors or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. Unrealized holding gains and losses are excluded from earnings and are reported net of tax in comprehensive income until realized.

The fair values of our foreign currency forward contracts are calculated as the present value of estimated future cash flows using discount factors derived from relevant Level 2 market inputs, including forward curves and volatility levels.

We did not have any changes to our valuation techniques during the during the nine-month period ended December 31, 2021, nor for the year ended March 31, 2021.
We recognize or disclose the fair value of certain assets, such as non-financial assets, primarily property, plant and equipment, goodwill, other intangible assets and certain other long-lived assets in connection with impairment evaluations. All of our nonrecurring valuations use significant unobservable inputs and therefore fall under Level 3 of the fair value hierarchy. Other than assets acquired, see Note 2, Business Acquisition, we determined the fair value of our developed technology included in property, plant and equipment using the cost approach which considers how much it would cost to replace an asset of equivalent utility. We did not perform any valuations on assets or liabilities that are valued at fair value on a nonrecurring basis. Other than our annual goodwill and indefinite-lived trade names impairment assessments and valuations, we did not perform any assessments or valuations on assets or liabilities that are valued at fair value on a nonrecurring basis.

As of December 31, 2021 and March 31, 2021, there were no assets or liabilities that were recorded at fair value on a nonrecurring basis.

The carrying values of cash and cash equivalents, restricted cash, trade receivables, prepaids and other current assets, trade payables and accrued liabilities approximate fair value due to their short maturities. The carrying value of our debt approximates its fair value and falls under Level 2 of the fair value hierarchy, as the interest rate is variable and based on current market rates.