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Net Income Per Share (TEU) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended
--- | --- | ---
Sep. 17, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Earnings Per Share [Abstract] |  |  |
Tangible equity units proceeds | $ 800.2 |  |
Price for basic share (usd per share) | $ 0.3134 |  |
Price for shares diluted (usd per share) | $ 0.3839 |  |
Difference amount between basic and diluted net income per share |  | $ 0.01 | $ 0.01
Net income allocated to PRS |  | $ 0.1 | $ 0.3

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- Definition Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=96947427&loc=SL5780133-109256 + Details
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