Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 406,298	$ 472,479
Short-term investments	582	455
Accounts receivable, less allowance for doubtful accounts of $4,400 and $4,503, respectively	65,084	76,604
Other receivables and current assets	134,191	147,402
Deferred income taxes	20,272	17,693
Total current assets	626,427	714,633
Property and equipment, net	40,251	36,921
Goodwill	1,229,872	1,035,083
Other intangible assets, net	396,645	278,320
Other long-term assets	48,858	56,123
Deferred income taxes	5,852	5,796
Total assets	2,347,905	2,126,876
Current liabilities:
Current portion of long-term debt and capital lease obligations	58,494	31,962
Accounts payable	4,423	2,241
Accrued bonuses and commissions	30,194	29,719
Accrued income taxes	6,575	6,179
Deferred income taxes	14	216
Other accrued expenses and liabilities	46,050	41,247
Deferred revenue	225,729	199,805
Total current liabilities	371,479	311,369
Long-term liabilities:
Long-term debt and capital lease obligations, less current portion	79,723	127,563
Deferred income taxes	109,691	75,026
Other long-term liabilities	93,995	82,989
Total long-term liabilities	283,409	285,578
Commitments and contingencies	0	0
Stockholders' equity:
Preferred stock, $.01 par value; 2,000,000 shares authorized; zero shares issued or outstanding	0	0
Common stock, $.01 par value; 300,000,000 shares authorized; 92,349,434 and 91,647,012 shares issued and outstanding, respectively	923	916
Additional paid-in capital	888,066	856,718
Retained earnings	788,551	655,333
Accumulated other comprehensive income	15,477	16,962
Total stockholders' equity	1,693,017	1,529,929
Total liabilities and stockholders' equity	$ 2,347,905	$ 2,126,876