Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reportable segment were as follows:

($ in millions)	Proprietary Products		Contract-Manufactured Products		Total
Balance, December 31, 2020	$	80.9	$	30.2	$	111.1
Goodwill recorded due to acquisition	1.7		—		1.7
Goodwill impairment charge	(0.1)		—		(0.1)
Foreign currency translation	(2.4)		(0.4)		(2.8)
Balance, December 31, 2021	80.1		29.8		109.9
Foreign currency translation	(2.2)		(0.4)		(2.6)
Balance, December 31, 2022	$	77.9	$	29.4	$	107.3

Schedule of Intangible Assets by Major Class

Intangible assets and accumulated amortization as of December 31 were as follows:

	2022						2021
($ in millions)	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Patents and licensing	$	24.5	$	(20.6)	$	3.9	$	25.1	$	(19.4)	$	5.7
Technology	3.3		(2.2)		1.1		3.3		(2.0)		1.3
Trademarks	1.9		(1.8)		0.1		2.0		(1.9)		0.1
Customer relationships	39.6		(27.2)		12.4		40.1		(25.4)		14.7
Customer contracts	10.9		(10.0)		0.9		10.6		(9.4)		1.2
	$	80.2	$	(61.8)	$	18.4	$	81.1	$	(58.1)	$	23.0