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Income Taxes (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Income Tax Disclosure [Abstract] |  |
Effective income tax rate on continuing operations (as a percent) | 21.80% | 23.10%
Anticipated effective tax rate for beginning of year to date (as a percent) | 23.70% | 24.70%
Discrete income tax expense (benefit) | $ 5.0 | $ 3.5
Reduced tax liability on prior tax filings | 2.7 |
Excess tax benefits related to employee stock compensation | 1.5 |
Decrease in unrecognized tax benefits | $ 1.2 |

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- Definition Amount of decrease in deferred tax liability previously recognized attributable to taxable temporary differences from undistributed earnings of foreign subsidiary and other recognized entity now subject to transition tax. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 + Details
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