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Income Taxes (Tables) | 9 Months Ended
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Sep. 30, 2021
Income Taxes |
Reconciliation Between U.S. Corporate Income Tax Rate and Effective Income Tax Rate from Continuing Operations (Table) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended |  | ​ | For the nine months ended |
​ | ​ | September 30, | ​ | ​ | September 30, | ​
​ |  | 2021 |  | ​ | 2020 |  | ​ | 2021 |  | ​ | 2020 | ​
U.S. corporate income tax rate | ​ | 21 | % | ​ | 21 | % | ​ | 21 | % | ​ | 21 | %
Dividends received deduction | ​ | (4) |  | ​ | (7) | ​ | ​ | (4) |  | ​ | (5) | ​
Tax credits | ​ | (3) | ​ | ​ | (5) | ​ | ​ | (2) | ​ | ​ | (3) | ​
Interest exclusion from taxable income | ​ | (1) | ​ | ​ | (1) | ​ | ​ | (1) | ​ | ​ | (1) | ​
Foreign country statutory rate differential | ​ | (1) | ​ | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​
Impact of equity method presentation | ​ | — | ​ | ​ | (2) | ​ | ​ | (1) | ​ | ​ | (1) | ​
State income taxes | ​ | 1 | ​ | ​ | 2 | ​ | ​ | 1 | ​ | ​ | 1 | ​
Low income housing tax credit amortization | ​ | 1 | ​ | ​ | 1 | ​ | ​ | 1 | ​ | ​ | 1 | ​
Other | ​ | 1 |  | ​ | 4 | ​ | ​ | — |  | ​ | 2 | ​
Effective income tax rate | ​ | 15 | % | ​ | 14 | % | ​ | 15 | % | ​ | 15 | %

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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