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INVESTMENT SECURITIES | 12 Months Ended
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Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
INVESTMENT SECURITIES | Investment Securities The amortized cost, gross unrealized gains (losses), and fair value of investment securities were as follows:
| March 31, 2021
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized (Losses) |  | Fair Value (1)
Corporate debt securities | $ | 178,384 |  |  | $ | 389 |  |  | $ | (114) |  |  | $ | 178,659 |
U.S. Treasury Securities | 23,761 |  |  | 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.
| March 31, 2020
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized (Losses) |  | Fair Value
Corporate debt securities | $ | 43,166 |  |  | $ | 210 |  |  | $ | (349) |  |  | $ | 43,027 |
U.S. Treasury Securities | 91,722 |  |  | 691 |  |  | (51) |  |  | 92,362 |
Total securities with unrealized gains/(losses) | $ | 134,888 |  |  | $ | 901 |  |  | $ | (400) |  |  | $ | 135,389 |
Scheduled maturities of the debt securities held by the Company included within the investment securities portfolio were as follows:
| March 31, 2021 |  | March 31, 2020
| Amortized Cost |  | Estimated Fair Value |  | Amortized Cost |  | Estimated Fair Value
Due within one year | $ | 172,747 |  |  | $ | 172,798 |  |  | $ | 105,349 |  |  | $ | 105,302 |
Due within years two through five | 29,398 |  |  | 29,944 |  |  | 29,539 |  |  | 30,087 |
Total debt within the investment securities portfolio | $ | 202,145 |  |  | $ | 202,742 |  |  | $ | 134,888 |  |  | $ | 135,389 |

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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