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EARNINGS PER SHARE | 9 Months Ended
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Sep. 30, 2021
EARNINGS PER SHARE |
EARNINGS PER SHARE | 17. EARNINGS PER SHARE ​ A reconciliation of the weighted-average shares used in the basic and diluted earnings per common share computations is presented below (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three-Months Ended | ​ | Nine-Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2021 |  | 2020 |  | 2021 |  | 2020
Weighted-average shares outstanding: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | 528,997 |  | 527,637 |  | 528,618 |  | 530,194
Dilutive | ​ | 6,918 |  | 5,626 |  | 6,936 |  | 4,817
Diluted | ​ | 535,915 |  | 533,263 |  | 535,554 |  | 535,011
​ For the three-months ended September 30, 2021 and 2020, options and awards outstanding totaling 1.0 million shares and 0.6 million shares, respectively, were excluded from the calculations as their effect would have been antidilutive. For the nine-months ended September 30, 2021 and 2020, options and awards outstanding totaling 0.8 million shares and 4.2 million shares, respectively, were excluded from the calculations as their effect would have been antidilutive.

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