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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) | 6 Months Ended
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Sep. 30, 2020
Fair Value Disclosures [Abstract] |
Fair Value of Senior Notes | The fair value of our long-term debt has been estimated based upon our current incremental borrowing rates for similar types of borrowing arrangements. The fair value of our Senior Unsecured Notes at September 30, 2020 is as follows:
|  | Fair Value |
|  | (dollars in thousands) |
4.500% Senior Unsecured Notes Due 2026 |  | $ | 364,613 |

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