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Net Income Per Share - TEU (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended
--- | --- | ---
Sep. 17, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Earnings Per Share [Abstract] |  |  |
Tangible equity units issued | 16,500,000 |  |
Tangible equity units proceeds | $ 800.2 |  |
Price for basic share (in dollars per share) | $ 0.3134 |  |
Price for diluted share (usd per share) |  | $ 0.3839 | $ 0.3711

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