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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 | 9 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019
Numerator for basic and diluted earnings per share: |  |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 6,594 | $ (4,104) | $ (2,969) | $ 15,250 | $ 16,599 | $ 18,579 | $ (479) | $ 50,428
Denominators: |  |  |  |  |  |  |  |
Average basic shares outstanding | 23,928 |  |  | 23,679 |  |  | 23,871 | 23,581
Effect of dilutive employee stock options and other share-based awards | 273 |  |  | 352 |  |  | 0 | 344
Average diluted shares outstanding | 24,201 |  |  | 24,031 |  |  | 23,871 | 23,925

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