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Computation of Net Income (Loss) per Common Share (Tables) | 6 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Reconciliation of Numerators and Denominators of EPS Calculation | The following table reconciles the numerators and denominators of the earnings per share calculation for the three and six months ended September 30, 2018 and 2017 (in thousands, except per share data):
| Three months ended September 30, |  | Six months ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |  |
Net income (loss) | $ | 22,558 |  |  | $ | (7,281 | ) |  | $ | 17,821 |  |  | $ | (22,533 | )
Denominator: |  |  |  |  |  |  |
Weighted-average shares of common stock outstanding | 21,252 |  |  | 19,531 |  |  | 21,126 |  |  | 18,316 |
Weighted-average shares subject to repurchase | (939 | ) |  | (471 | ) |  | (886 | ) |  | (391 | )
Shares used in per-share calculation ― basic | 20,313 |  |  | 19,060 |  |  | 20,240 |  |  | 17,925 |
Shares used in per-share calculation ― diluted | 20,581 |  |  | 19,060 |  |  | 20,560 |  |  | 17,925 |
Net income (loss) per share ― basic | $ | 1.11 |  |  | $ | (0.38 | ) |  | $ | 0.88 |  |  | $ | (1.26 | )
Net income (loss) per share ― diluted | $ | 1.10 |  |  | $ | (0.38 | ) |  | $ | 0.87 |  |  | $ | (1.26 | )

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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://fasb.org/us-gaap/role/ref/legacyRef -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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