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Earnings Per Share (Tables) | 6 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share:
|  | Three Months Ended September 30, |  | Six Months Ended September 30,
(In thousands, except per share data) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 30,705 |  |  | $ | 32,195 |  |  | $ | 64,464 |  |  | $ | 26,664 |
Denominator |  |  |  |  |  |  |  |  |  |
Denominator for basic earnings per share — weighted average shares outstanding |  | 53,098 |  |  | 52,993 |  |  | 53,068 |  |  | 52,941 |
Dilutive effect of unvested restricted stock units and options issued to employees and directors |  | 441 |  |  | 352 |  |  | 456 |  |  | 388 |
Denominator for diluted earnings per share |  | 53,539 |  |  | 53,345 |  |  | 53,524 |  |  | 53,329 |
Earnings per Common Share: |  |  |  |  |  |  |  |  |  |
Basic net earnings per share |  | $ | 0.58 |  |  | $ | 0.61 |  |  | $ | 1.21 |  |  | $ | 0.50 |
Diluted net earnings per share |  | $ | 0.57 |  |  | $ | 0.60 |  |  | $ | 1.20 |  |  | $ | 0.50 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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