Identifiable Intangible Assets

12 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Direct internal and external costs to develop software licensed by Technologies' customers are capitalized. Capitalized costs are amortized over the 6-year estimated useful life of the software, beginning when the software is complete and ready for its intended use. At September 30, 2018, the remaining weighted-average amortization period for this software was 2.8 years. Amortization expense related to such software assets was $2.9 million, $2.4 million and $1.9 million for 2018, 2017 and 2016, respectively. Amortization expense for each of the next five years is scheduled to be $3.5 million in 2019, $3.2 million in 2020, $2.5 million in 2021, $2.0 million in 2022 and $1.5 million in 2023.

At September 30, 2018, the remaining weighted-average amortization period for the business combination-related finite-lived intangible assets was 6.8 years. Amortization expense related to these assets was $19.9 million, $19.7 million and $19.3 million for 2018, 2017 and 2016, respectively. Amortization expense for each of the next five years is scheduled to be $20.7 million in 2019, $20.7 million in 2020, $20.6 million in 2021, $20.5 million in 2022 and $20.5 million in 2023.

Intangible assets are presented below.



	September 30,
	2018			2017
	(in millions)
Capitalized internal-use software:
Cost	$	27.6		$	28.4
Accumulated amortization	(14.2		)	(11.3		)
Net book value	13.4			17.1

Business combination-related:
Cost:
Finite-lived intangible assets:
Technology	82.6			76.7
Customer relationships and other	358.8			359.2
Indefinite-lived intangible assets:
Trade names and trademarks	266.6			266.8
Goodwill	12.1			12.9
	720.1			715.6
Accumulated amortization:
Technology	(72.9		)	(72.2		)
Customer relationships and other	(240.4		)	(221.2		)
	(313.3		)	(293.4		)
Net book value	406.8			422.2
Total intangible assets net book value	$	420.2		$	439.3