Net Income Per Share - TEU (Details) $ / shares in Units, $ in Millions	Sep. 17, 2018 USD ($) $ / shares shares
Earnings Per Share [Abstract]
Tangible equity units issued | shares	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)	$ 0.3711