Condensed Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Product and licenses	$ 206,252	$ 193,153	$ 594,507	$ 632,369
Software as a service	190,757	165,253	537,705	483,164
License updates and maintenance	379,585	358,266	1,128,043	1,049,065
Professional services	36,676	42,322	110,576	126,775
Total net revenues	813,270	758,994	2,370,831	2,291,373
Cost of net revenues:
Cost of product and license revenues	34,859	24,045	83,833	88,144
Cost of services and maintenance revenues	91,295	87,981	270,218	254,763
Amortization of product related intangible assets	20,100	23,959	57,560	102,660
Total cost of net revenues	146,254	135,985	411,611	445,567
Gross margin	667,016	623,009	1,959,220	1,845,806
Operating expenses:
Research and development	139,128	137,877	423,972	411,870
Sales, marketing and services	293,587	318,252	896,250	956,287
General and administrative	79,799	95,203	241,697	242,606
Amortization and impairment of other intangible assets	76,938	9,956	97,371	32,855
Restructuring	13,766	3,124	62,251	17,285
Total operating expenses	603,218	564,412	1,721,541	1,660,903
Income from operations	63,798	58,597	237,679	184,903
Interest income	3,004	2,411	8,679	6,705
Interest expense	11,075	10,551	33,196	17,601
Other expense, net	(2,369)	(2,235)	(13,480)	(6,002)
Income before income taxes	53,358	48,222	199,682	168,005
Income tax (benefit) expense	(2,567)	690	11,595	11,510
Net income	$ 55,925	$ 47,532	$ 188,087	$ 156,495
Earnings per share:
Basic (in dollars per share)	$ 0.35	$ 0.29	$ 1.17	$ 0.91
Diluted (in dollars per share)	$ 0.35	$ 0.29	$ 1.16	$ 0.90
Weighted average shares outstanding:
Basic (in shares)	160,359	164,229	160,359	172,622
Diluted (in shares)	161,777	165,713	161,716	174,023