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Stockholders' Deficit (Tables) | 3 Months Ended
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Mar. 31, 2018
Compensation Related Costs [Abstract] |
Schedule of Stock-based Compensation Expense Recognized | The following reflects total stock-based compensation expense recognized under all programs:
|  | Three Months Ended
|  | March 31,
|  | 2018 |  | 2017
Related to stock options |  | $ | 1.4 |  |  | $ | 0.2 |
Related to RSUs |  | 7.4 |  |  | 5.7 |
Total |  | $ | 8.8 |  |  | $ | 5.9 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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