CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ 11,422	$ (2,239)
Adjustments to reconcile net income (loss) to net cash flows from operating activities
Depreciation	3,528	3,330
Amortization	10,593	9,796
Tax expense of intellectual property shift	917	1,100
Deferred income taxes	5,386	4,895
Stock-based compensation expense	4,533	3,598
Excess tax benefit of stock options exercised	(1,066)	211
Other	210	337
Changes in operating assets and liabilities, net of impact of acquisitions:
Billed and accrued receivables, net	6,456	16,112
Other current and noncurrent assets	277	(4,415)
Accounts payable	(3,779)	(4,428)
Accrued employee compensation	(4,189)	(4,398)
Accrued liabilities	(5,085)	(5,782)
Current income taxes	(3,404)	(14,887)
Deferred revenue	4,569	15,563
Other current and noncurrent liabilities	(4,884)	(1,695)
Net cash flows from operating activities	25,484	17,098
Cash flows from investing activities:
Purchases of property and equipment	(7,870)	(2,406)
Purchases of software and distribution rights	(5,288)	(3,926)
Alliance technical enablement expenditures	(256)	(3,055)
Acquisition of businesses, net of cash acquired	(16,850)
Net cash flows from investing activities	(30,264)	(9,387)
Cash flows from financing activities:
Proceeds from issuance of common stock	628	537
Proceeds from exercises of stock options	2,375	2,092
Excess tax benefit of stock options exercised	1,066	110
Repurchases of common stock		(15,665)
Repurchase of restricted stock for tax withholdings	(366)	(255)
Payments on debt and capital leases	(867)	(716)
Net cash flows from financing activities	2,836	(13,897)
Effect of exchange rate fluctuations on cash	1,441	(1,974)
Net decrease in cash and cash equivalents	(503)	(8,160)
Cash and cash equivalents, beginning of period	171,310	125,917
Cash and cash equivalents, end of period	170,807	117,757
Supplemental cash flow information
Income taxes paid, net	11,862	17,637
Interest paid	$ 855	$ 891