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Income Taxes (Contingencies) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Balance at January 1 | $ 5.6 | $ 4.9 | $ 4.8
Additions based on tax positions related to the current year | 0.0 | 0.0 | 0.0
Additions for tax positions of prior years | 0.8 | 0.7 | 0.9
Reductions for tax positions of prior years | (0.4) | 0.0 | (0.1)
Reductions for expirations of statute of limitations | (0.2) | 0.0 | (0.4)
Settlements | 0.0 | 0.0 | (0.3)
Balance at December 31 | 5.8 | 5.6 | 4.9
Unrecognized tax benefits, accumulated interest and penalties | 6.1 | 5.5 | 5.3
Deferred tax assets related to unrecognized tax benefits | 4.2 | 4.0 | 3.6
Net unrecognized tax benefits, associated interest, penalties and deferred tax asset that if resolved would impact effective tax rate | 7.7 | 7.1 | 6.6
Recognized interest and penalties | $ 0.4 | $ 0.4 | $ 0.3

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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