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Acquisition Pro Forma (Tables) | 9 Months Ended
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Sep. 30, 2018
Pro Forma [Abstract] |
Business Acquisition, Pro Forma Information [Table Text Block] |
| Company Pro Forma Information
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Net revenue | $ | 240.2 |  |  | $ | 218.7 |  |  | $ | 845.7 |  |  | $ | 754.8 |
Net income | 15.5 |  |  | 18.2 |  |  | 302.4 |  |  | 104.1 |

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- Definition Pro Forma [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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