Segment Information (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

The geographic distribution of our revenues and identifiable assets is as follows:

	Year Ended December 31,
	2011		2010		2009
Revenues:
Americas	$	446,059	$	391,379	$	269,780
Europe	136,671		106,964		82,279
Asia/Pacific	108,513		95,399		38,909
Total revenues	$	691,243	$	593,742	$	390,968

	Year Ended December 31,
	2011		2010		2009
Identifiable assets:
Americas	$	951,804	$	904,360	$	704,230
Europe	117,088		126,179		86,312
Asia/Pacific	102,066		101,403		40,609
Total	$	1,170,958	$	1,131,942	$	831,151

Schedule of Segment Reporting Information, by Segment [Table Text Block]

A summary of the revenues, operating income and depreciation attributable to each of these reportable business segments for the three years ended December 31, 2011 is as follows:

	Year Ended December 31,
	2011			2010			2009
Revenues:
Supply Chain	$	666,286		$	573,631		$	360,670
Pricing and Revenue Management	24,957			20,111			30,298
	$	691,243		$	593,742		$	390,968
Income (Loss) Before Income Taxes:
Supply Chain	$	234,299		$	176,559		$	120,803
Pricing and Revenue Management	4,365			(1,627		)	7,536
Other (see below)	(136,045		)	(176,853		)	(83,578		)
	$	102,619		$	(1,921	)	$	44,761
Depreciation:
Supply Chain	$	12,937		$	12,135		$	8,637
Pricing and Revenue Management	385			648			1,049
	$	13,322		$	12,783		$	9,686
Other:
General and administrative	$	72,493		$	72,112		$	47,580
Amortization of intangible assets	38,421			38,415			23,633
Restructuring charge and adjustments to acquisition-related reserves	1,922			20,931			6,865
Acquisition-related costs	—			8,115			4,768
Litigation provision and settlements, net	1,500			14,000			—
Interest expense and amortization of loan fees	25,500			24,758			2,712
Finance costs on abandoned acquisition	—			—			(767		)
Interest income and other, net	(3,791		)	(1,478		)	(1,213		)
	$	136,045		$	176,853		$	83,578