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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Statement of Cash Flows [Abstract]      
Restricted cash and cash equivalents $ 8.0   $ 1.1
Cash and cash equivalents $ 177.6 $ 56.5 $ 53.3