Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011		Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 193,798		$ 356,533
Short-term investments	37,132	[1]	90,284	[1]
Accounts receivable, net of allowances of $7,080 and $5,367 at September 30, 2011 and December 31, 2010, respectively	159,954		179,621
Prepaid expenses and other current assets	33,909		48,312
Deferred income taxes	5,510		6,677
Total current assets	430,303		681,427
Property and equipment, net	84,476		70,854
Long-term investments	25,799	[1]	45,466	[1]
Intangible assets, net	95,728		62,785
Goodwill	753,092		706,224
Deferred income taxes	48,494		46,985
Other assets	56,033		21,843
Total assets	1,493,925		1,635,584
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	9,723		5,512
Accrued compensation	49,645		55,185
Other accrued expenses	40,381		32,600
Loans payable	587		521
Deferred revenue	351,786		324,121
Total current liabilities	452,122		417,939
Long-term liabilities:
Deferred revenue	105,816		100,264
Income taxes payable	36,187		41,385
Loans payable	32,310		32,730
Other long-term liabilities	16,713		11,000
Total long-term liabilities	191,026		185,379
Total liabilities	643,148		603,318
Commitments and contingencies (Note 18)
Stockholders' equity:
Preferred stock, $0.001 par value, 10,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value, 200,000 shares authorized; 83,173 and 92,893 shares issued and outstanding at September 30, 2011 and December 31, 2010, respectively	83		93
Additional paid-in-capital	517,735		729,640
Retained earnings	333,119		301,697
Accumulated other comprehensive (loss) income	(160)		836
Total stockholders' equity	850,777		1,032,266
Total liabilities and stockholders' equity	$ 1,493,925		$ 1,635,584

[1] See Note 16 - Fair Value Measurements for details regarding fair value measurements.