Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenue:
Software license	$ 138,807	$ 119,839	$ 115,934
Maintenance	117,110	83,878	50,099
Professional services	160,758	132,882	97,980
Total revenue	416,675	336,599	264,013
Cost of revenue:
Cost of software license	6,693	4,303	121
Cost of maintenance	13,077	11,041	6,203
Cost of professional services	145,028	113,390	84,613
Total cost of revenue	164,798	128,734	90,937
Gross profit	251,877	207,865	173,076
Selling and marketing	147,457	116,230	74,378
Research and development	65,308	55,193	38,862
General and administrative	28,198	25,034	18,017
Acquisition-related costs	482	5,924
Restructuring costs	(62)	8,064
Total operating expenses	241,383	210,445	131,257
Income (loss) from operations	10,494	(2,580)	41,819
Foreign currency transaction (loss) gain	(935)	(5,569)	2,083
Interest income, net	398	1,138	3,491
Other income, net	856	814	22
Income (loss) before provision (benefit) for income taxes	10,813	(6,197)	47,415
Provision (benefit) for income taxes	705	(306)	15,203
Net income (loss)	$ 10,108	$ (5,891)	$ 32,212
Net earnings (loss) per share
Basic	$ 0.27	$ (0.16)	$ 0.89
Diluted	$ 0.26	$ (0.16)	$ 0.85
Weighted-average number of common shares outstanding
Basic	37,496	37,031	36,208
Diluted	39,404	37,031	38,113
Cash dividends declared per share	$ 0.12	$ 0.12	$ 0.12