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Employee Benefit Plans (Fair Value of the Defined Benefit Pension Plan Assets by Major Categories and by Levels within the Fair Value Hierarchy) General (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | $ 201,459 | $ 170,640 | $ 162,599
Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 185,158 | 149,683 |
Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 16,301 | 20,957 |
Cash and cash equivalents |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 21,202 | 14,375 |
Cash and cash equivalents | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 21,202 | 14,375 |
Cash and cash equivalents | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 0 | 0 |
Equity securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 60,867 | 54,534 |
Equity securities | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 60,867 | 54,534 |
Equity securities | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 0 | 0 |
Debt securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 50,178 | 42,153 |
Debt securities | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 50,178 | 42,153 |
Debt securities | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 0 | 0 |
Real estate funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 51,739 | 42,427 |
Real estate funds | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 44,906 | 32,286 |
Real estate funds | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 6,833 | 10,141 |
Hedge funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 8,994 | 10,400 |
Hedge funds | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 0 | 0 |
Hedge funds | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 8,994 | 10,400 |
Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 8,479 | 6,751 |
Other | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | 8,005 | 6,335 |
Other | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total fair value of plan assets | $ 474 | $ 416 |

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