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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2021
Mar. 31, 2020
Reconciliation of cash, cash equivalents and restricted cash:    
Cash and cash equivalents $ 36.9 $ 64.1
Restricted cash 1.6 0.0
Cash, cash equivalents and restricted cash 38.5 $ 64.1
Restricted cash collateralizing letters of credit outstanding $ 1.6