Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2019

Related Party Transactions [Abstract]

Summary of Amounts Due to and Due from Related Party

Amounts due to and due from related parties are summarized in the below table:

	As of
Related party (Dollars in millions)	March 31, 2019		December 31, 2018
Related party receivables	$	2.9	$	15.0
Related party payables		34.5		50.7
Related party accrued expenses		13.8		13.0