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Computation of Net Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2020
Computation of Net Earnings per Share |
Schedule of components of net income per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019 |
​ | ​ | (in thousands, except per share amounts) | ​
Net income available to common stockholders | ​ | $ | 13,302 | ​ | $ | 556 | ​ | $ | 24,523 | ​ | $ | 6,618 | ​
Weighted average common shares outstanding used in computing basic income per share | ​ |  | 33,116 | ​ |  | 32,729 | ​ |  | 32,998 | ​ |  | 32,706 | ​
Incremental options and RSUs | ​ |  | 842 | ​ |  | 1,172 | ​ |  | 1,025 | ​ |  | 1,358 | ​
Weighted average common shares used in computing diluted net income per share | ​ |  | 33,958 | ​ |  | 33,901 | ​ |  | 34,023 | ​ |  | 34,064 | ​
Net income per share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.40 | ​ | $ | 0.02 | ​ | $ | 0.74 | ​ | $ | 0.20 | ​
Diluted | ​ | $ | 0.39 | ​ | $ | 0.02 | ​ | $ | 0.72 | ​ | $ | 0.19 | ​

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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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