Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010
Revenues:
System and software	$ 117,495	$ 100,491	$ 257,140	$ 197,941
Service and support	96,245	87,443	186,635	170,570
Total revenues	213,740	187,934	443,775	368,511
Cost of revenues:
System and software	14,294	7,977	30,371	14,620
Service and support	26,844	23,633	52,055	46,800
Amortization of purchased technology	2,754	3,560	6,111	7,129
Total cost of revenues	43,892	35,170	88,537	68,549
Gross margin	169,848	152,764	355,238	299,962
Operating expenses:
Research and development	69,905	67,792	139,273	134,436
Marketing and selling	75,758	72,720	153,682	144,544
General and administration	17,348	18,763	34,133	37,042
Equity in earnings of Frontline	(1,139)	(1,162)	(2,156)	(1,346)
Amortization of intangible assets	1,455	1,936	3,065	4,297
Special charges	1,677	3,206	6,224	6,474
Total operating expenses	165,004	163,255	334,221	325,447
Operating income (loss)	4,844	(10,491)	21,017	(25,485)
Other income (expense), net	529	(14)	54	(1,155)
Interest expense	(4,634)	(4,727)	(22,074)	(9,054)
Income (loss) before income tax	739	(15,232)	(1,003)	(35,694)
Income tax expense (benefit)	(3,595)	(985)	(2,984)	1,578
Net income (loss)	$ 4,334	$ (14,247)	$ 1,981	$ (37,272)
Net income (loss) per share:
Basic	$ 0.04	$ (0.13)	$ 0.02	$ (0.35)
Diluted	$ 0.04	$ (0.13)	$ 0.02	$ (0.35)
Weighted average number of shares outstanding:
Basic	110,027	107,629	110,888	105,717
Diluted	112,844	107,629	113,892	105,717