Condensed Consolidated Statements of Operations (Unaudited) (USD $)
In Thousands, except Per Share data
 3 Months Ended 6 Months Ended
May 31, 2011
May 31, 2010
May 31, 2011
May 31, 2010
Revenue:        
Software licenses $ 45,417 $ 44,228 $ 96,753 $ 91,345
Maintenance and services 89,267 83,428 172,168 163,858
Total revenue 134,684 127,656 268,921 255,203
Costs of revenue:        
Cost of software licenses 2,321 1,619 4,702 3,608
Cost of maintenance and services 19,906 18,327 37,674 35,241
Amortization of acquired intangibles for purchased technology 3,930 5,285 7,905 10,383
Total costs of revenue 26,157 25,231 50,281 49,232
Gross profit 108,527 102,425 218,640 205,971
Operating expenses:        
Sales and marketing 44,312 40,140 89,010 83,346
Product development 20,137 23,153 40,996 46,540
General and administrative 13,742 13,448 25,594 26,230
Amortization of other acquired intangibles 1,982 2,736 4,256 5,100
Restructuring expense 1,144 203 3,258 25,974
Acquisition-related expenses       415
Total operating expenses 81,317 79,680 163,114 187,605
Income from operations 27,210 22,745 55,526 18,366
Other income:        
Interest income and other 714 581 1,301 2,062
Foreign currency gain (loss) (505) 3,338 (1,131) 4,613
Total other income 209 3,919 170 6,675
Income before provision for income taxes 27,419 26,664 55,696 25,041
Provision for income taxes 9,459 7,606 17,215 6,989
Net income $ 17,960 $ 19,058 $ 38,481 $ 18,052
Earnings per share:        
Basic $ 0.27 $ 0.30 $ 0.57 $ 0.29
Diluted $ 0.26 $ 0.29 $ 0.55 $ 0.28
Weighted average shares outstanding:        
Basic 66,897 63,805 66,942 62,712
Diluted 69,246 66,355 69,453 65,191