Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Net income (loss)	$ 55,647	$ 3,598
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	29,746	28,010
Provision for doubtful accounts	0	500
Amortization of loan fees	1,108	922
Net gain on disposal of property and equipment	20	(9)
Stock-based compensation	10,055	6,569
Deferred income taxes	4,379	(304)
Changes in assets and liabilities, net of effects from business acquisition:
Accounts receivable	(24,890)	(14,856)
Income tax receivable	(766)	2,031
Prepaid expenses and other assets	(9,095)	(13,911)
Accounts payable	(11,861)	3,634
Accrued expenses and other liabilities	(1,284)	(14,075)
Income tax payable	(1,023)	(3,737)
Deferred revenue	42,124	11,196
Net cash provided by operating activities	94,160	9,568
Investing Activities:
Change in restricted cash	(2,256)	276,095
Purchase of i2 Technologies, Inc.	0	(213,427)
Payment of direct costs related to acquisitions	(1,703)	(1,639)
Purchase of property and equipment	(4,815)	(6,397)
Proceeds from disposal of property and equipment	50	349
Net cash (used in) provided by investing activities	(8,724)	54,981
Financing Activities:
Issuance of common stock—equity plans	3,498	11,610
Purchase of treasury stock and other, net	(4,527)	(3,758)
Conversion of warrants	671	0
Debt Issuance Costs	(1,701)	0
Net cash (used in) provided by financing activities	(2,059)	7,852
Effect of exchange rates on cash and cash equivalents	1,106	(2,196)
Net increase in cash and cash equivalents	84,483	70,205
Cash and Cash Equivalents, Beginning of Period	171,618	75,974
Cash and Cash Equivalents, End of Period	256,101	146,179
Supplemental Disclosures of Cash Flow Information:
Cash paid for income taxes	6,385	6,244
Cash paid for interest	11,029	12,227
Cash received for income tax refunds	$ 1,157	$ 1,458