Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets

Information regarding other intangible assets as of September 30, 2015 and December 31, 2014 follows:

	September 30, 2015							December 31, 2014
	Weighted Average Useful Life	Acquisition Cost		Accumulated Amortization		Net		Acquisition Cost		Accumulated Amortization		Net
		(In millions)
Non-contractual customer relationships	12.2 years	$	76.5	$	17.3	$	59.2	$	77.3	$	13.2	$	64.1
Indefinite-lived tradenames	*	18.7		—		18.7		14.0		—		14.0
Technology	19.1 years	16.1		0.7		15.4		8.2		0.1		8.1
Other	8.7 years	4.1		2.5		1.6		4.1		2.2		1.9
Total		$	115.4	$	20.5	$	94.9	$	103.6	$	15.5	$	88.1

* Not applicable, tradenames have an indefinite life.

Schedule of indefinite-lived intangible assets

Information regarding other intangible assets as of September 30, 2015 and December 31, 2014 follows:

	September 30, 2015							December 31, 2014
	Weighted Average Useful Life	Acquisition Cost		Accumulated Amortization		Net		Acquisition Cost		Accumulated Amortization		Net
		(In millions)
Non-contractual customer relationships	12.2 years	$	76.5	$	17.3	$	59.2	$	77.3	$	13.2	$	64.1
Indefinite-lived tradenames	*	18.7		—		18.7		14.0		—		14.0
Technology	19.1 years	16.1		0.7		15.4		8.2		0.1		8.1
Other	8.7 years	4.1		2.5		1.6		4.1		2.2		1.9
Total		$	115.4	$	20.5	$	94.9	$	103.6	$	15.5	$	88.1

* Not applicable, tradenames have an indefinite life.

Information regarding amortization expense

Information regarding amortization expense of other intangibles assets follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
	(In millions)
Amortization expense	$	1.6	$	1.0	$	4.8	$	3.4