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Income Taxes (Details) kr in Millions, $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
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Sep. 30, 2020 DKK (kr) | Mar. 31, 2020 DKK (kr) | Sep. 30, 2019 | Sep. 30, 2020 DKK (kr) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 | Dec. 31, 2019 DKK (kr) | Dec. 31, 2019 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
Income Tax Examination [Line Items] |  |  |  |  |  |  |  |  |  |
Effective income tax provision (as a percent) | 25.20% |  | 26.50% | 26.50% | 26.50% | 29.00% |  |  |  |
Danish Tax Authority (SKAT) | Foreign Tax Authority | Tax Years Post 2011 |  |  |  |  |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |  |  |  |  |
Income tax liability |  |  |  | kr 1,126.3 | $ 177.4 |  | kr 1,110.6 | $ 166.7 |  |
Tax deposit | kr 1,180.9 |  |  | kr 1,180.9 |  |  | kr 970.1 |  | $ 186.0 | $ 145.6
Danish Tax Authority (SKAT) | Foreign Tax Authority | Tax Years 2012-2013 |  |  |  |  |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |  |  |  |  |
Income tax liability | kr 76.8 | kr 134.0 |  |  |  |  |  |  |  |

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- Definition The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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