Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortized Intangible Assets

The gross carrying amount and accumulated amortization for intangible assets which are in our AMS segment consisted of the following ($ in millions):

	September 30, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
Customer relationships	$	543.2	$	110.8	$	432.4
Developed technology	74.7		18.7		56.0
Trade names	19.0		2.3		16.7
Non-compete agreements	2.9		2.5		0.4
Patents	1.5		0.6		0.9
Total	$	641.3	$	134.9	$	506.4
Unamortized Intangible Assets
Trade names	$	20.1	$	—	$	20.1

	December 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
Customer relationships	$	343.9	$	89.7	$	254.2
Developed technology	42.4		14.2		28.2
Trade names	11.7		1.4		10.3
Non-compete agreements	2.9		2.4		0.5
Patents	1.5		0.5		1.0
Total	$	402.4	$	108.2	$	294.2
Unamortized Intangible Assets
Trade names	$	20.5	$	—	$	20.5

Schedule of Unamortized Intangible Assets

The gross carrying amount and accumulated amortization for intangible assets which are in our AMS segment consisted of the following ($ in millions):

	September 30, 2021
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
Customer relationships	$	543.2	$	110.8	$	432.4
Developed technology	74.7		18.7		56.0
Trade names	19.0		2.3		16.7
Non-compete agreements	2.9		2.5		0.4
Patents	1.5		0.6		0.9
Total	$	641.3	$	134.9	$	506.4
Unamortized Intangible Assets
Trade names	$	20.1	$	—	$	20.1

	December 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized Intangible Assets
Customer relationships	$	343.9	$	89.7	$	254.2
Developed technology	42.4		14.2		28.2
Trade names	11.7		1.4		10.3
Non-compete agreements	2.9		2.4		0.5
Patents	1.5		0.5		1.0
Total	$	402.4	$	108.2	$	294.2
Unamortized Intangible Assets
Trade names	$	20.5	$	—	$	20.5