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Investments In and Advances to Nonconsolidated Affiliates - Schedule of Combined Results of Operations and Equity Method Affiliates (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]        
Net operating revenues $ 5.2 $ 10.1 $ 27.3 $ 31.6
Operating expenses (2.9) (5.9) (16.4) (19.1)
Income from continuing operations, net of tax 2.3 4.1 10.9 12.4
Net income $ 2.3 $ 4.1 $ 10.9 $ 12.4