CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 21,961	$ 97
Adjustments to reconcile net income to net cash flows from operating activities
Depreciation	5,529	5,107
Amortization	15,813	14,671
Tax expense of intellectual property shift	917	1,650
Deferred income taxes	6,181	456
Stock-based compensation expense	6,691	5,455
Excess tax benefit of stock options exercised	(1,326)	275
Other	333	458
Changes in operating assets and liabilities, net of impact of acquisitions:
Billed and accrued receivables, net	8,629	22,779
Other current and noncurrent assets	2,179	(5,451)
Accounts payable	(4,658)	(8,201)
Accrued employee compensation	133	1,534
Accrued liabilities	(1,524)	(5,389)
Current income taxes	(6,424)	(10,919)
Deferred revenue	4,184	28,704
Other current and noncurrent liabilities	(6,383)	(2,093)
Net cash flows from operating activities	52,235	49,133
Cash flows from investing activities:
Purchases of property and equipment	(9,310)	(4,157)
Purchases of software and distribution rights	(6,590)	(6,375)
Alliance technical enablement expenditures	(256)	(4,423)
Purchase of available-for-sale equity securities	(10,000)
Acquisition of businesses, net of cash acquired	(16,850)
Net cash flows from investing activities	(43,006)	(14,955)
Cash flows from financing activities:
Proceeds from issuance of common stock	968	866
Proceeds from exercises of stock options	2,780	2,508
Excess tax benefit of stock options exercised	1,326	159
Repurchases of common stock		(18,624)
Repurchase of restricted stock for tax withholdings	(678)	(517)
Repayment of revolving credit facility	(75,000)
Proceeds from senior secured revolving credit facility	75,000
Payments on debt and capital leases	(3,270)	(1,306)
Distribution to noncontrolling interest		(1,232)
Net cash flows from financing activities	1,126	(18,146)
Effect of exchange rate fluctuations on cash	(1,965)	1,953
Net increase in cash and cash equivalents	8,390	17,985
Cash and cash equivalents, beginning of period	171,310	125,917
Cash and cash equivalents, end of period	179,700	143,902
Supplemental cash flow information
Income taxes paid, net	16,538	20,886
Interest paid	$ 1,219	$ 1,238