Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets

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

	June 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	12.5 years	$	76.8	$	16.1	$	60.7	$	77.3	$	13.2	$	64.1
Indefinite-lived tradenames	*	18.7		—		18.7		14.0		—		14.0
Technology	19.4 years	16.3		0.5		15.8		8.2		0.1		8.1
Other	8.9 years	4.1		2.4		1.7		4.1		2.2		1.9
Total		$	115.9	$	19.0	$	96.9	$	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 June 30, 2015 and December 31, 2014 follows:

	June 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	12.5 years	$	76.8	$	16.1	$	60.7	$	77.3	$	13.2	$	64.1
Indefinite-lived tradenames	*	18.7		—		18.7		14.0		—		14.0
Technology	19.4 years	16.3		0.5		15.8		8.2		0.1		8.1
Other	8.9 years	4.1		2.4		1.7		4.1		2.2		1.9
Total		$	115.9	$	19.0	$	96.9	$	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 June 30, 2015				Six Months Ended June 30,
	2015		2014		2015		2014
	(In millions)
Amortization expense	$	1.5	$	1.3	$	3.2	$	2.4