INVESTMENT SECURITIES |
Investment Securities The amortized cost, gross unrealized gains (losses), and fair value of securities were as follows: | | | | | | | | | | | | | | | | | | March 31, 2020 | (In thousands) | 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 |
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| | | | | | | | | | | | | | | | | | March 31, 2019 | (In thousands) | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized (Losses) | | Fair Value | Corporate debt securities | $ | 116,220 |
| | $ | 372 |
| | $ | (15 | ) | | $ | 116,577 |
| U.S. Treasury Securities | 8,608 |
| | 73 |
| | — |
| | 8,681 |
| Total securities with unrealized gains/(losses) | $ | 124,828 |
| | $ | 445 |
| | $ | (15 | ) | | $ | 125,258 |
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Scheduled maturities of the Company's debt securities within the investment securities portfolio were as follows: | | | | | | | | | | | | | | | | | | March 31, 2020 | | March 31, 2019 | (In thousands) | Amortized Cost | | Estimated Fair Value | | Amortized Cost | | Estimated Fair Value | Due within one year | $ | 105,349 |
| | $ | 105,302 |
| | $ | 96,109 |
| | $ | 96,175 |
| Due within years two through five | 29,539 |
| | 30,087 |
| | 28,719 |
| | 29,083 |
| Total debt within the investment securities portfolio | $ | 134,888 |
| | $ | 135,389 |
| | $ | 124,828 |
| | $ | 125,258 |
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