Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2012 Customers	Sep. 30, 2012	Sep. 30, 2011 As Restated [Member]		Sep. 30, 2011 As Restated [Member]		Sep. 30, 2012 Supply Chain [Member]	Sep. 30, 2012 Supply Chain [Member]	Sep. 30, 2011 Supply Chain [Member] As Restated [Member]	Sep. 30, 2011 Supply Chain [Member] As Restated [Member]	Sep. 30, 2012 Pricing and Revenue Management [Member]	Sep. 30, 2012 Pricing and Revenue Management [Member]	Sep. 30, 2011 Pricing and Revenue Management [Member] As Restated [Member]	Sep. 30, 2011 Pricing and Revenue Management [Member] As Restated [Member]	Sep. 30, 2012 Unallocated Amount to Segment [Member]	Sep. 30, 2012 Unallocated Amount to Segment [Member]	Sep. 30, 2011 Unallocated Amount to Segment [Member]	Sep. 30, 2011 Unallocated Amount to Segment [Member] As Restated [Member]	Sep. 30, 2011 Unallocated Amount to Segment [Member] As Restated [Member]
Segment Reporting Information [Line Items]
Number of customers worldwide (customers)	6,000
Revenues	$ 164,520	$ 495,463	$ 173,099		$ 506,139		$ 160,147	$ 481,579	$ 166,850	$ 489,964	$ 4,373	$ 13,884	$ 6,249	$ 16,175
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	18,464	42,860	29,730		100,407		54,694	162,318	60,399	163,036	(499)	(1,864)	1,270	954	(35,731)	(117,594)	(63,583)	(31,939)	(63,583)
Depreciation	3,774	11,235	3,227		9,997		3,693	10,974	3,132	9,692	81	261	95	305
General and administrative	21,009	70,354	15,815	[1]	54,488	[1]
Amortization of intangibles	9,530	28,590	9,562	[1]	28,872	[1]
Restructuring charge and adjustments to acquisition-related reserves	(163)	2,280	768	[1]	1,279	[1]
Litigation settlement	0	0	0	[1]	(37,500)	[1]
Interest expense and amortization of loan fees	6,608	19,562	6,435	[1]	19,085	[1]
Interest income and other, net	$ (1,253)	$ (3,192)	$ (641)	[1]	$ (2,641)	[1]

[1] (1) As restated - See Note 14 “Restatement of Previously Issued Financial Statements” of Notes to Condensed Consolidated Financial Statements.See notes to Condensed Consolidated Financial Statements.