v3.6.0.2

Income Taxes - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 29, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Income Tax Disclosure [Abstract] |  |  |  |
Uncertain tax benefits that, if recognized, would affect effective tax rate |  | $ 2.5 | $ 3.1 |
Recognized interest and penalties expense (benefit) related to unrecognized tax benefits |  | 0.1 | 0.4 | $ 0.3
Accrued interest and penalties |  | $ 0.9 | $ 1.0 |
Proceeds from refund of overpaid federal tax | $ 120.0 |  |  |

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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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