Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Sep. 30, 2010
ASSETS
Cash and cash equivalents	$ 167,878	$ 240,253
Accounts receivable, net of allowance for doubtful accounts of $3,902 and $4,559 at September 30, 2011 and 2010, respectively	230,220	169,281
Prepaid expenses	30,582	32,116
Other current assets	109,433	91,126
Deferred tax assets	54,151	35,481
Total current assets	592,264	568,257
Property and equipment, net	62,569	58,064
Goodwill	613,394	418,509
Acquired intangible assets, net	222,017	127,931
Deferred tax assets	98,064	90,458
Other assets	41,374	43,845
Total assets	1,629,682	1,307,064
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	16,974	11,734
Accrued expenses and other current liabilities	60,167	52,803
Accrued compensation and benefits	95,980	98,476
Accrued income taxes	11,895	516
Deferred tax liabilities	4,440
Accrued litigation		50,644
Deferred revenue	279,935	238,821
Total current liabilities	469,391	452,994
Revolving credit facility	200,000
Deferred tax liabilities	25,919	22,452
Deferred revenue	14,389	7,019
Other liabilities	97,293	77,295
Total liabilities	806,992	559,760
Commitments and contingencies (Note I)
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000 shares authorized; none issued
Common stock, $0.01 par value; 500,000 shares authorized; 116,937 and 115,826 shares issued and outstanding at September 30, 2011 and 2010, respectively	1,169	1,158
Additional paid-in capital	1,805,021	1,802,786
Accumulated deficit	(918,736)	(1,004,160)
Accumulated other comprehensive loss	(64,764)	(52,480)
Total stockholders' equity	822,690	747,304
Total liabilities and stockholders' equity	$ 1,629,682	$ 1,307,064