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WEIGHTED AVERAGE SHARE COUNTS | 6 Months Ended
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Jun. 30, 2023
Weighted Average Share Counts |
NET INCOME PER SHARE | (13)WEIGHTED AVERAGE SHARE COUNTS ​ The following table sets forth the computation of basic and diluted shares for the periods indicated (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended June 30, | ​ | Six Months Ended June 30,
​ |  | 2023 |  | 2022 |  | 2023 |  | 2022
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Shares used in basic earnings per share calculation | ​ | 47,264 |  | 47,047 |  | 47,249 |  | 47,026
Effect of dilutive securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Restricted stock units | ​ | 186 |  | 336 |  | 156 |  | 342
Performance-based restricted stock units | ​ | 3 |  | — |  | 12 |  | 13
Total effects of dilutive securities | ​ | 189 |  | 336 |  | 168 |  | 355
Shares used in dilutive earnings per share calculation | ​ | 47,453 |  | 47,383 |  | 47,417 |  | 47,381
​ For the three months ended June 30, 2023 and 2022, there were Restricted Stock Units (“RSUs”) of 958 thousand and 281 thousand, respectively, outstanding which were excluded from the computation of diluted net income per share because the effect would have been anti-dilutive. For the six months ended June 30, 2023 and 2022, there were RSUs of 902 thousand and 239 thousand, respectively, outstanding which were excluded from the computation of diluted net income per share because the effect would have been anti-dilutive.

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