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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Statement of Cash Flows [Abstract] |  |
Transfer to investments | $ 7.0 |
Common stock repurchases | 0.0 | [1]
Restricted cash and cash equivalents, current | 1.0 |
Restricted cash and cash equivalents, non-current | $ 1.0 |
[1] | Includes $19.3 in shares repurchased through our share repurchase program. On March 11, 2021, the share repurchase program expired with no further repurchases. Refer to Note 2, “Significant Accounting Policies” for further information.

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