Description of Business and Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash

A reconciliation of cash, cash equivalents and restricted cash to the Condensed Consolidated Balance Sheets follows:

(dollars in millions)	March 31, 2023		December 31, 2022
Cash and cash equivalents	$	7.4	$	9.4
Restricted cash included in Other noncurrent assets		8.4		3.5
Cash, cash equivalents and restricted cash per Condensed Consolidated Statements of Cash Flows	$	15.8	$	12.9