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Summary of Significant Accounting Policies Summary of Significant Accounting Policies
 6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]  
Schedule of Cash and Cash Equivalents [Table Text Block]
The following table provides a reconciliation of cash and cash equivalents and restricted cash and cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows:
(In millions)As of
 June 30, 2020December 31, 2019June 30, 2019December 31, 2018
Cash and cash equivalents$8.5  $187.4  $19.7  $25.7  
Restricted cash and cash equivalents382.7  330.3  328.8  303.6  
Total cash and cash equivalents and restricted cash and cash equivalents
$391.2  $517.7  $348.5  $329.3