Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

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, 2019	$	78.1	$	29.7	$	107.8
Foreign currency translation	2.8		0.5		3.3
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

Schedule of Intangible Assets by Major Class

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

	2021						2020
($ in millions)	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Patents and licensing	$	25.1	$	(19.4)	$	5.7	$	25.9	$	(17.9)	$	8.0
Technology	3.3		(2.0)		1.3		3.3		(1.7)		1.6
Trademarks	2.0		(1.9)		0.1		2.0		(1.8)		0.2
Customer relationships	40.1		(25.4)		14.7		40.9		(23.4)		17.5
Customer contracts	10.6		(9.4)		1.2		11.1		(7.9)		3.2
	$	81.1	$	(58.1)	$	23.0	$	83.2	$	(52.7)	$	30.5