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Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2023
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, 2023December 31, 2022June 30, 2022December 31, 2021
Cash and cash equivalents$3.2 $7.7 $4.1 $23.3 
Restricted cash and cash equivalents408.8 410.0 426.7 410.9 
Total cash and cash equivalents and restricted cash and cash equivalents
$412.0 $417.7 $430.8 $434.2