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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2018
Summary of Significant Accounting Policies [Abstract] |
Cash, Cash Equivalents and Restricted Cash | The following table provides a reconciliation of cash and cash equivalents, and restricted cash reported within the Unaudited Condensed Consolidated Balance Sheets that sum to the total of the amounts shown in the Unaudited Condensed Statements of Consolidated Cash Flows.
|  | March 31, 2018 |  |  | December 31, 2017 |
Cash and cash equivalents |  | $ | 102.1 |  |  | $ | 5.1 |
Restricted cash |  |  | 113.5 |  |  |  | 65.2 |
Total cash, cash equivalents and restricted cash shown in the Unaudited Condensed Statements of Consolidated Cash Flows |  | $ | 215.6 |  |  | $ | 70.3 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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