CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 576,703	$ 471,828
Short-term investments	452	576
Accounts receivable, less allowance for doubtful accounts of $4,800 and $4,101, respectively	96,598	84,602
Other receivables and current assets	216,268	163,296
Deferred income taxes	23,338	19,731
Total current assets	913,359	740,033
Property and equipment, net	52,253	45,638
Goodwill	1,251,247	1,225,375
Other intangible assets, net	351,173	383,420
Other long-term assets	24,393	46,942
Deferred income taxes	14,992	7,062
Total assets	2,607,417	2,448,470
Current liabilities:
Current portion of long-term debt and capital lease obligations	53,149	74,423
Accounts payable	4,924	6,987
Accrued bonuses and commissions	42,601	36,164
Accrued income taxes	8,182	6,213
Deferred income taxes	1,409	0
Other accrued expenses and liabilities	61,329	55,809
Deferred revenue	305,793	259,155
Total current liabilities	477,387	438,751
Long-term liabilities:
Long-term debt and capital lease obligations, less current portion	0	53,149
Deferred income taxes	92,822	101,618
Other long-term liabilities	96,917	100,479
Total long-term liabilities	189,739	255,246
Commitments and contingencies
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; 93,201,905 and 92,651,739 shares issued, respectively	932	927
Additional paid-in capital	927,368	905,662
Retained earnings	1,039,491	836,008
Treasury stock, at cost: 536,231 and 0 shares, respectively	(36,151)	0
Accumulated other comprehensive income	8,651	11,876
Total stockholders’ equity	1,940,291	1,754,473
Total liabilities and stockholders’ equity	$ 2,607,417	$ 2,448,470