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INVESTMENT SECURITIES
3 Months Ended
Jun. 30, 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:
June 30, 2022
Amortized CostGross Unrealized GainsGross Unrealized (Losses)
Fair Value (1)
Corporate debt securities$26,620 $— $(1,705)$24,915 
U.S. treasury securities7,061 — (289)6,772 
Certificates of Deposit516 — — 516 
Total securities with unrealized gains/(losses)$34,197 $— $(1,994)$32,203 
(1) Included within Investment securities in the Consolidated Balance Sheets.

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.
Scheduled maturities of the debt securities held by the Company included within the investment securities portfolio were as follows:
June 30, 2022March 31, 2022
Amortized CostEstimated Fair ValueAmortized CostEstimated Fair Value
Due within one year$516 $516 $72,963 $72,950 
Due within years two through five33,681 31,687 33,919 32,302 
Total debt within the investment securities portfolio$34,197 $32,203 $106,882 $105,252