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Income Taxes | 6 Months Ended
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Jun. 30, 2021
Income Taxes |
Income Taxes | 6. Income Taxes Effective Income Tax Rate Our provision for income taxes may not have the customary relationship of taxes to income. A reconciliation between the U.S. corporate income tax rate and the effective income tax rate was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended |  | ​ | For the six months ended |
​ | ​ | June 30, | ​ | ​ | June 30, | ​
​ |  | 2021 |  | 2020 | ​ | 2021 |  | 2020
U.S. corporate income tax rate | ​ | 21 | % | ​ | 21 | % | ​ | 21 | % | ​ | 21 | %
Dividends received deduction | ​ | (4) |  | ​ | (3) | ​ | ​ | (4) |  | ​ | (4) | ​
Tax credits | ​ | (3) | ​ | ​ | (2) | ​ | ​ | (2) | ​ | ​ | (2) | ​
Interest exclusion from taxable income | ​ | (1) | ​ | ​ | (1) | ​ | ​ | (1) | ​ | ​ | (1) | ​
Local country permanent tax adjustments | ​ | (1) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1 | ​
State income taxes | ​ | 1 | ​ | ​ | — | ​ | ​ | 1 | ​ | ​ | — | ​
Other | ​ | 1 |  | ​ | 2 | ​ | ​ | — |  | ​ | — | ​
Effective income tax rate | ​ | 14 | % | ​ | 17 | % | ​ | 15 | % | ​ | 15 | %
​

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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