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Goodwill and Intangibles (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill [Line Items] |
Schedule of Goodwill [Table Text Block] |
|  | As of March 31, |
|  | 2018 |  | 2017 |
Net carrying value at beginning of period |  | $ | 444.7 |  |  | $ | 212.8 |  |
Addition to goodwill from acquisition |  | — |  |  | — |  |
Measurement period adjustment to previously recorded goodwill |  | 0.9 |  |  | — |  |
Net carrying value at end of period |  | $ | 445.6 |  |  | $ | 212.8 |  |
Schedule of Finite-Lived Intangible Assets |
|  | Three Months Ended March 31, |
|  | 2018 |  | 2017 |
CDI, net, beginning of period |  | $ | 49.1 |  |  | $ | 9.7 |  |
CDI current period amortization |  | (1.8 | ) |  | (0.6 | ) |
Total CDI, net, end of period |  | $ | 47.3 |  |  | $ | 9.1 |  |
Schedule of Future Amortization Expense | The following table provides the estimated future CDI amortization expense:
Years Ending December 31, |  |  |  |
2018 remaining |  |  | $ | 5.2 |  |
2019 |  |  | 6.6 |  |
2020 |  |  | 6.2 |  |
2021 |  |  | 5.7 |  |
2022 |  |  | 5.3 |  |
Thereafter |  |  | 18.3 |  |
Total |  |  | $ | 47.3 |  |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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