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Cash, Cash Equivalents and Restricted Cash (Tables) | 3 Months Ended
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Mar. 31, 2021
Cash, Cash Equivalents and Restricted Cash [Abstract] |
Schedule of Cash and Cash Equivalents | The following table summarizes the Company’s cash, cash equivalents and restricted cash as presented on the unaudited condensed consolidated balance sheet to amounts on the unaudited condensed consolidated statement of cash flows (in millions):
| March 31, 2021 |  | March 31, 2020
Cash and cash equivalents | $ | 163.3 |  |  | $ | 109.2 |
Deposits for financial assurance - current | 0.2 |  |  | 0.2 |
Deposits for financial assurance - noncurrent | 5.7 |  |  | 5.7 |
Total cash, cash equivalents and restricted cash | $ | 169.2 |  |  | $ | 115.1 |

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