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Computation of Net Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2025
Earnings Per Share [Abstract] |
Schedule of components of net income per share | ​
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​ | ​ | Three months ended | ​ | Six months ended | ​
​ | ​ | June 30, | ​ | June 30, | ​
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |
​ | ​ | (in thousands, except per share amounts) | ​
Net income available to common stockholders | ​ | $ | 31,376 | ​ | $ | 50,866 | ​ | $ | 59,955 | ​ | $ | 102,460 | ​
Weighted average shares of common stock outstanding used in computing basic income per share | ​ |  | 31,847 | ​ |  | 32,598 | ​ |  | 32,051 | ​ |  | 32,618 | ​
Incremental RSUs | ​ |  | 35 | ​ |  | 173 | ​ |  | 52 | ​ |  | 230 | ​
Weighted average shares of common stock used in computing diluted net income per share | ​ |  | 31,882 | ​ |  | 32,771 | ​ |  | 32,103 | ​ |  | 32,848 | ​
Net income per share | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.99 | ​ | $ | 1.56 | ​ | $ | 1.87 | ​ | $ | 3.14 | ​
Diluted | ​ | $ | 0.98 | ​ | $ | 1.55 | ​ | $ | 1.87 | ​ | $ | 3.12 | ​

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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