Acquisitions, Goodwill, and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table shows the changes in our goodwill balances from December 31, 2011 to September 30, 2012:

	($000)
Balance as of December 31, 2011	$	318,492
Net change, primarily currency translation	2,642
Balance as of September 30, 2012	$	321,134

Schedule of Intangible Assets

The following table summarizes our intangible assets: 

	As of September 30, 2012								As of December 31, 2011
($000)	Gross		Accumulated Amortization			Net		Weighted Average Useful  Life (years)	Gross		Accumulated Amortization			Net		Weighted Average Useful  Life (years)
Intellectual property	$	32,343	$	(22,488	)	$	9,855	9	$	32,293	$	(20,455	)	$	11,838	9
Customer-related assets	135,772		(62,763		)	73,009		12	134,396		(52,611		)	81,785		12
Supplier relationships	240		(93		)	147		20	240		(84		)	156		20
Technology-based assets	81,308		(41,735		)	39,573		9	80,694		(35,130		)	45,564		9
Non-competition agreement	1,766		(1,518		)	248		4	1,751		(1,285		)	466		4
Total intangible assets	$	251,429	$	(128,597	)	$	122,832	10	$	249,374	$	(109,565	)	$	139,809	10

Schedule of Intangible Asset, Amortization Expense

The following table summarizes our amortization expense related to intangible assets:

	Three months ended September 30				Nine months ended September 30
($000)	2012		2011		2012		2011
Amortization expense	$	5,941	$	6,894	$	17,972	$	20,039

Schedule of Expected Amortization Expense

We expect intangible amortization expense for 2012 and subsequent years as follows:

	($000)
2012	$	24,048
2013	21,317
2014	20,058
2015	19,186
2016	14,564
2017	9,954