Description of Business and Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2022

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)	June 30, 2022		December 31, 2021
Cash and cash equivalents	$	6.7	$	5.6
Restricted cash included in Other noncurrent assets		0.8		0.5
Cash, cash equivalents and restricted cash per Condensed Consolidated Statements of Cash Flows	$	7.5	$	6.1