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INVESTMENT SECURITIES
12 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
INVESTMENT SECURITIES Investment Securities
The amortized cost and gross unrealized gains (losses) of marketable investment securities accounted under the fair value method were as follows:
March 31, 2022
Amortized CostGross Unrealized GainsGross Unrealized (Losses)
Fair Value (1)
Corporate debt securities$88,475 $$(1,403)$87,074 
U.S. treasury securities17,891 — (229)17,662 
Certificates of deposit516 — — 516 
Total securities with unrealized gains/(losses)$106,882 $$(1,632)$105,252 
(1)Included within Investment securities in the Consolidated Balance Sheets.
March 31, 2021
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Fair Value
Corporate debt securities$178,384 $389 $(114)$178,659 
U.S. treasury securities23,761 322 — 24,083 
Total securities with unrealized gains/(losses)$202,145 $711 $(114)$202,742 
(1)Included within Investment securities in the Consolidated Balance Sheets.
Scheduled maturities of the debt securities held by the Company included within the investment securities portfolio were as follows:
March 31, 2022March 31, 2021
Amortized CostEstimated Fair ValueAmortized CostEstimated Fair Value
Due within one year$72,963 $72,950 $172,747 $172,798 
Due within years two through five33,919 32,302 29,398 29,944 
Total debt within the investment securities portfolio$106,882 $105,252 $202,145 $202,742