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Earnings Per Share (Computation of basic and diluted earnings per share) (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Numerator for basic and diluted earnings per share: |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 15,813 | $ 14,114 | $ 8,391 | $ 25,088 | $ 22,505
Denominators: |  |  |  |  |
Average basic shares outstanding | 28,725 | 28,619 |  | 28,694 | 28,581
Effect of dilutive employee stock options and other share-based awards | 276 | 129 |  | 268 | 152
Average diluted shares outstanding | 29,001 | 28,748 |  | 28,962 | 28,733
Share-based Payment Arrangement, Option [Member] |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  |  |  | 748 | 718

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