Supplemental Consolidated Cash and Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2023

Supplemental Cash Flow Elements [Abstract]

Schedule of Reconciliation of Net Income to Net Cash Provided by Operating Activities

($ in millions)	Years Ended December 31,
	2023		2022		2021
Cash	$	29.0	$	42.2	$	133.0
Restricted cash	0.7		0.6		0.7
Total cash and restricted cash shown in the Consolidated Statements of Cash Flows	$	29.7	$	42.8	$	133.7
Cash paid during the year for:
Interest	$	30.1	$	18.2	$	13.5
Income taxes	14.0		8.6		23.7