v3.22.2.2
FAIR VALUE MEASUREMENTS
6 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS
Cash, cash equivalents, and available-for-sale investments were as follows:
As of September 30, 2022Amortized
Costs
Gross
Unrealized
Gain
Gross
Unrealized
Loss
Estimated
Fair Value
Cash and
Cash
Equivalents
Restricted Cash
(Current & Non-current)
Short-Term
Investments
Long-Term
Investments
Cash$88,288 $— $— $88,288 $88,288 $— $— $— 
Level 1:
Money market funds2,184 — — 2,184 2,184 — — — 
Treasury securities— — — — — 
Subtotal90,472 — — 90,472 90,472 — — — 
Level 2:
Certificate of deposit1,329 — — 1,329 — 1,329 — — 
Commercial paper18,460 — (22)18,438 10,040 8,398 — 
Corporate debt22,211 (198)22,013 22,013 — 
Subtotal42,000 — (220)41,780 10,040 1,329 30,411 — 
Total assets$132,472 $— $(220)$132,252 $100,512 $1,329 $30,411 $— 
As of March 31, 2022Amortized
Costs
Gross
Unrealized
Gain
Gross
Unrealized
Loss
Estimated
Fair Value
Cash and
Cash
Equivalents
Restricted Cash
(Current & Non-current)
Short-Term
Investments
Long-Term
Investments
Cash$70,095 $— $— $70,095 $70,095 $— $— $— 
Level 1:
Money market funds12,865 — — 12,865 12,865 — — — 
Treasury securities4,573 — (7)4,566 — — 4,566 — 
Subtotal87,533 — (7)87,526 82,960 — 4,566 — 
Level 2:
Certificate of deposit9,509 — — 9,509 — 9,509 — — 
Commercial paper23,950 — (34)23,916 800 — 16,471 — 
Corporate debt27,442 — (163)27,279 7,445 — 23,808 2,671 
Subtotal60,901 — (197)60,704 8,245 9,509 40,279 2,671 
Total assets$148,434 $— $(204)$148,230 $91,205 $9,509 $44,845 $2,671 
Certificate of deposit represents the Company's letters of credit securing leases for office facilities, the balance of which is included in Restricted cash, current and Restricted cash, non-current on the Company's Consolidated Balance Sheet.
The Company considers its investments available to support its current operations and has classified investments in debt securities as available-for-sale securities. The Company does not intend to sell any of its investments that are in unrealized loss positions and, as of September 30, 2022, has determined that it is not more likely than not that it will be required to sell any of these investments before recovery of the entire amortized cost basis.
The Company regularly reviews the changes to the rating of its securities at the individual security level by rating agencies and reasonably monitors the surrounding economic conditions to assess the risk of expected credit losses. As of September 30, 2022, the Company did not record any allowance for credit losses on its investments.
As of September 30, 2022 and March 31, 2022, the estimated fair value of the Company's Notes was $246.6 million and $470.5 million, respectively, which was determined based on the closing price for the Notes on the last trading day of the reporting period and is considered to be Level 2 in the fair value hierarchy due to limited trading activity of the Notes. See Note 7, Convertible Senior Notes, Term Loan and Capped Calls.
The following table presents additional information about valuation techniques and inputs used for the Warrants (See Note 7, Convertible Senior Notes, Term Loan and Capped Calls) that are measured at fair value and categorized within Level 3 as of September 30, 2022 (fair value amounts in thousands):

Fair ValueValuation TechniqueUnobservable InputsInputs value
Warrants$4,621Black-Scholes option-pricing modelStock volatility68.8 %
Risk-free rate4.1 %
Expected term5.0 years

As of September 30, 2022 and March 31, 2022, the estimated fair value of the Company's 2024 Notes was $76 million and $470.5 million, respectively. As of September 30, 2022, the estimated fair value of the Company’s 2028 Notes (refer to Note 7 - Convertible Senior Notes, Term Loan and Capped Calls) was $170.6 million. The fair value of the 2024 Notes and 2028 Notes was determined based on the closing price for the 2024 Notes and 2028 Notes, respectively, on the last trading day of the reporting period and is considered to be Level 2 in the fair value hierarchy due to limited trading activity of the 2024 Notes and 2028 Notes. As of September 30, 2022, the estimated fair value of the Company’s Term Loan was $211.2 million. The fair value of the Company’s Term Loan was estimated based on the quoted market prices for the same issues or on the current rates offered for debt of similar remaining maturities.