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Income Taxes (Details) kr in Millions, $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2021 DKK (kr) | Sep. 30, 2020 | Sep. 30, 2021 USD ($) | Sep. 30, 2020 | Dec. 31, 2020 USD ($)
Income Tax Examination [Line Items] |  |  |  |  |  |
Effective income tax provision (as a percent) | 24.90% | 24.90% | 25.20% | 24.30% | 26.50% |
Danish Tax Authority (SKAT) | Foreign Tax Authority |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |
Tax deposit paid | $ 1.5 | kr 9.8 |  |  |  |
Danish Tax Authority (SKAT) | Foreign Tax Authority | Tax Years Post 2011 |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |
Deferred tax assets | 12.7 |  |  | $ 12.7 |  | $ 12.0
Danish Tax Authority (SKAT) | Foreign Tax Authority | Tax Year 2015 |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |
Tax deposit paid | 15.1 | 97.2 |  |  |  |
Danish Tax Authority (SKAT) | Foreign Tax Authority | Tax Years 2012 - 2014 |  |  |  |  |  |
Income Tax Examination [Line Items] |  |  |  |  |  |
Tax deposit paid | $ 32.9 | kr 210.8 |  |  |  |

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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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