Condensed Consolidated Statements Of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Revenue	$ 775,766	$ 860,945
Cost of net revenues:
Total cost of net revenues	143,469	115,577
Gross profit	632,297	745,368
Operating expenses:
Research and development	144,158	134,458
Sales, marketing and services	293,284	326,109
General and administrative	94,990	80,099
Amortization of other intangible assets	7,532	702
Restructuring	0	2,453
Total operating expenses	539,964	543,821
Income from operations	92,333	201,547
Interest income	321	1,605
Interest expense	(24,360)	(14,611)
Other income, net	12,896	2,098
Income before income taxes	81,190	190,639
Income tax (benefit) expense	(8,858)	9,417
Net income	$ 90,048	$ 181,222
Earnings per share:
Basic (in dollars per share)	$ 0.73	$ 1.45
Diluted (in dollars per share)	$ 0.71	$ 1.42
Weighted average shares outstanding:
Basic (in shares)	122,923	124,737
Diluted (in shares)	126,026	127,577
Subscription [Member]
Revenues:
Revenue	$ 342,129	$ 268,236
Product and License [Member]
Revenues:
Revenue	44,235	172,858
Cost of net revenues:
Cost of net revenues	21,715	21,256
Support and Services [Member]
Revenues:
Revenue	389,402	419,851
Subscription, Support and Service [Member]
Cost of net revenues:
Cost of net revenues	110,745	86,040
Product [Member]
Cost of net revenues:
Amortization of product related intangible assets	$ 11,009	$ 8,281