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Earnings Per Share (Tables) | 12 Months Ended
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Mar. 31, 2016
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:
| Year Ended March 31,
(In thousands, except per share data) | 2016 |  | 2015 |  | 2014
Numerator |  |  |  |  |
Net income | $ | 99,907 |  |  | $ | 78,260 |  |  | $ | 72,615 |
Denominator |  |  |  |  |  |  |
Denominator for basic earnings per share- weighted average shares outstanding | 52,754 |  |  | 52,170 |  |  | 51,641 |
Dilutive effect of unvested restricted stock units and options issued to employees and directors | 389 |  |  | 500 |  |  | 708 |
Denominator for diluted earnings per share | 53,143 |  |  | 52,670 |  |  | 52,349 |
Earnings per Common Share: |  |  |  |  |  |  |
Basic net earnings per share | $ | 1.89 |  |  | $ | 1.50 |  |  | $ | 1.41 |
Diluted net earnings per share | $ | 1.88 |  |  | $ | 1.49 |  |  | $ | 1.39 |

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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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