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Income Taxes - Textuals (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Successor |  |
Income Taxes |  |
Income tax provision | $ 10.1 |
Successor | Foreign Tax Authority |  |
Income Taxes |  |
Income tax provision | $ 0.5 |
Predecessor |  |
Income Taxes |  |
Income tax provision |  | $ 2.2
Predecessor | Foreign Tax Authority |  |
Income Taxes |  |
Income tax provision |  | $ 9.4

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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