Condensed Consolidating Statements of Cash Flows (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ 132,620	$ 38,993
Investing Activities:
Change in restricted cash	(2,293)	277,554
Purchase of i2 Technologies, Inc.	0	(213,427)
Payment of direct costs related to acquisitions	(2,579)	(2,749)
Purchase of property and equipment	(7,625)	(14,785)
Proceeds from disposal of property and equipment	51	631
Net cash (used in) provided by investing activities	(12,446)	47,224
Financing Activities:
Issuance of common stock—equity plans	5,261	13,836
Purchase of treasury stock and other, net	(5,166)	(4,645)
Conversion of warrants	671	0
Debt Issuance Costs	(1,727)	0
Change in intercompany receivable/payable	0	0
Net cash (used in) provided by financing activities	(961)	9,191
Effect of exchange rates on cash and cash equivalents	(1,173)	988
Net increase (decrease) in cash and cash equivalent	118,040	96,396
Cash and Cash Equivalents, Beginning of Period	171,618	75,974
Cash and Cash Equivalents, End of Period	289,658	172,370
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	153,368	145,030
Investing Activities:
Change in restricted cash	(2,293)	277,554
Purchase of i2 Technologies, Inc.		(431,775)
Payment of direct costs related to acquisitions	0	0
Purchase of property and equipment	0	0
Proceeds from disposal of property and equipment	0	0
Net cash (used in) provided by investing activities	(2,293)	(154,221)
Financing Activities:
Issuance of common stock—equity plans	5,261	13,836
Purchase of treasury stock and other, net	(5,166)	(4,645)
Conversion of warrants	671
Debt Issuance Costs	(1,727)
Change in intercompany receivable/payable	0	0
Net cash (used in) provided by financing activities	(961)	9,191
Effect of exchange rates on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalent	150,114	0
Cash and Cash Equivalents, Beginning of Period	0	0
Cash and Cash Equivalents, End of Period	150,114	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	(24,568)	(128,978)
Investing Activities:
Change in restricted cash	0	0
Purchase of i2 Technologies, Inc.		218,348
Payment of direct costs related to acquisitions	2,579	(1,669)
Purchase of property and equipment	(5,787)	(10,110)
Proceeds from disposal of property and equipment	51	602
Net cash (used in) provided by investing activities	(8,315)	207,171
Financing Activities:
Issuance of common stock—equity plans	0	0
Purchase of treasury stock and other, net	0	0
Conversion of warrants	0
Debt Issuance Costs	0
Change in intercompany receivable/payable	(397)	19,528
Net cash (used in) provided by financing activities	(397)	19,528
Effect of exchange rates on cash and cash equivalents	(795)	(8,461)
Net increase (decrease) in cash and cash equivalent	(34,075)	89,260
Cash and Cash Equivalents, Beginning of Period	133,631	47,170
Cash and Cash Equivalents, End of Period	99,556	136,430
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	3,820	22,941
Investing Activities:
Change in restricted cash	0	0
Purchase of i2 Technologies, Inc.		0
Payment of direct costs related to acquisitions	0	(1,080)
Purchase of property and equipment	(1,838)	(4,675)
Proceeds from disposal of property and equipment	0	29
Net cash (used in) provided by investing activities	(1,838)	(5,726)
Financing Activities:
Issuance of common stock—equity plans	0	0
Purchase of treasury stock and other, net	0	0
Conversion of warrants	0
Debt Issuance Costs	0
Change in intercompany receivable/payable	397	(19,528)
Net cash (used in) provided by financing activities	397	(19,528)
Effect of exchange rates on cash and cash equivalents	(378)	9,449
Net increase (decrease) in cash and cash equivalent	2,001	7,136
Cash and Cash Equivalents, Beginning of Period	37,987	28,804
Cash and Cash Equivalents, End of Period	39,988	35,940
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	0	0
Investing Activities:
Change in restricted cash	0	0
Purchase of i2 Technologies, Inc.		0
Payment of direct costs related to acquisitions	0	0
Purchase of property and equipment	0	0
Proceeds from disposal of property and equipment	0	0
Net cash (used in) provided by investing activities	0	0
Financing Activities:
Issuance of common stock—equity plans	0	0
Purchase of treasury stock and other, net	0	0
Conversion of warrants	0
Debt Issuance Costs	0
Change in intercompany receivable/payable	0	0
Net cash (used in) provided by financing activities	0	0
Effect of exchange rates on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalent	0	0
Cash and Cash Equivalents, Beginning of Period	0	0
Cash and Cash Equivalents, End of Period	$ 0	$ 0