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Summary of Significant Accounting Policies - Income Taxes (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2020 USD ($)
Accounting Policies [Abstract] |
Total amount of unrecognized tax benefits relating to uncertain tax positions | $ 40.8
Decrease in the total amount of unrecognized tax benefits relating to uncertain tax positions | 0.1
Increase in reserves for uncertain tax positions expected to be taken in current year | 3.4
Decrease resulted primarily from a favorable settlements related to certain non-U.S. income tax obligations of an acquired business and the expiration of U.S. state income tax statutes | 3.4
Reasonably possible reduction to the balance of unrecognized tax benefits in succeeding 12 months | $ 10.0

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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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