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Computation of Net Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Computation of Net Earnings per Share |
Schedule of components of net income per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Nine months ended | ​
​ | ​ | September 30, | ​ | September 30, | ​
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020 |
​ | ​ | (in thousands, except per share amounts) | ​
Net income available to common stockholders | ​ | $ | 27,515 | ​ | $ | 10,785 | ​ | $ | 62,901 | ​ | $ | 35,308 | ​
Weighted average common shares outstanding used in computing basic income per share | ​ |  | 33,537 | ​ |  | 33,477 | ​ |  | 33,643 | ​ |  | 33,159 | ​
Incremental options and RSUs | ​ |  | 552 | ​ |  | 697 | ​ |  | 696 | ​ |  | 911 | ​
Weighted average common shares used in computing diluted net income per share | ​ |  | 34,089 | ​ |  | 34,174 | ​ |  | 34,339 | ​ |  | 34,070 | ​
Net income per share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.82 | ​ | $ | 0.32 | ​ | $ | 1.87 | ​ | $ | 1.06 | ​
Diluted | ​ | $ | 0.81 | ​ | $ | 0.32 | ​ | $ | 1.83 | ​ | $ | 1.04 | ​

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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