Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

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, 2017	$	77.6	$	30.1	$	107.7
Foreign currency translation	(1.6)		(0.3)		(1.9)
Balance, December 31, 2018	76.0		29.8		105.8
Goodwill recorded due to acquisition	2.6		—		2.6
Foreign currency translation	(0.5)		(0.1)		(0.6)
Balance, December 31, 2019	$	78.1	$	29.7	$	107.8

Schedule of Intangible Assets by Major Class

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

	2019						2018
($ in millions)	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Patents and licensing	$	21.5	$	(16.0)	$	5.5	$	19.6	$	(15.1)	$	4.5
Technology	3.3		(1.5)		1.8		3.3		(1.2)		2.1
Trademarks	2.0		(1.8)		0.2		2.0		(1.8)		0.2
Customer relationships	40.3		(21.6)		18.7		29.3		(20.0)		9.3
Customer contracts	11.0		(7.4)		3.6		11.0		(6.8)		4.2
	$	78.1	$	(48.3)	$	29.8	$	65.2	$	(44.9)	$	20.3