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Equity and dividends (Tables) | 9 Months Ended
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Sep. 30, 2021
Equity and dividends |
Schedule of Quarterly Dividends Declared and Paid | The Company declared and paid the following dividends during the nine months ended September 30, 2021 and 2020: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Dividend |  | ​ |  | Total |  | ​
​ | ​ | Declaration date | ​ | per share | ​ | Record date | ​ | dividends | ​ | Payment date
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Nine months ended September 30, 2021: |  |  |  | ​ |  |  |  |  | ​ |  |  |
Fourth quarter 2020 | ​ | January 22, 2021 | ​ | $ | 0.2200 | ​ | February 12, 2021 | ​ | $ | 24,181 | ​ | March 5, 2021
First quarter 2021 | ​ | May 7, 2021 | ​ | ​ | 0.2200 | ​ | May 26, 2021 | ​ | ​ | 24,279 | ​ | June 16, 2021
Second quarter 2021 | ​ | August 4, 2021 | ​ | ​ | 0.2500 | ​ | August 25, 2021 | ​ | ​ | 27,607 | ​ | September 15, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Nine months ended September 30, 2020: | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |
Fourth quarter 2019 | ​ | January 24, 2020 | ​ | $ | 0.2000 | ​ | February 14, 2020 | ​ | $ | 21,905 | ​ | March 6, 2020
First quarter 2020 | ​ | May 6, 2020 | ​ | ​ | 0.2000 | ​ | May 27, 2020 | ​ | ​ | 21,681 | ​ | June 17, 2020
Second quarter 2020 | ​ | August 5, 2020 | ​ | ​ | 0.2200 | ​ | August 26, 2020 | ​ | ​ | 24,053 | ​ | September 16, 2020

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