Basis of Presentation and Recent Accounting Pronouncements, Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Feb. 28, 2020
Prior Period Adjustment [Abstract]
Stock-based compensation	$ 3.5	$ 7.5
Common Stock [Member] | Kohlberg Kravis Roberts & Co. L.P [Member]
Stock Issued or Granted During Period [Abstract]
Number of shares owned by non-controlling owners (in shares)	70,671,135		70,671,135
Ownership percentage by non-controlling owners	17.00%		34.00%
Other Operating Expense, Net [Member]
Prior Period Adjustment [Abstract]
Stock-based compensation		(9.3)
Selling and Administrative Expenses [Member]
Prior Period Adjustment [Abstract]
Stock-based compensation		$ 9.3