CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Revenues:
Product licenses		$ 21,012	$ 22,399
Subscription services		7,772	7,354
Total product licenses and subscription services		28,784	29,753
Product support		70,490	68,497
Other services		21,302	20,765
Total revenues		120,576	119,015
Cost of revenues:
Product licenses		1,672	2,136
Subscription services		3,039	3,092
Total product licenses and subscription services		4,711	5,228
Product support		4,334	3,273
Other services		14,087	14,322
Total cost of revenues		23,132	22,823
Gross profit		97,444	96,192
Operating expenses:
Sales and marketing		39,410	36,577
Research and development		18,426	17,575
General and administrative		20,257	22,219
Restructuring costs		0	25
Total operating expenses		78,093	76,396
Income from operations		19,351	19,796
Interest income, net		837	403
Other expense, net		(1,856)	(1,668)
Income before income taxes		18,332	18,531
Provision for income taxes		3,465	4,259
Net income		$ 14,867	$ 14,272
Basic earnings per share	[1]	$ 1.30	$ 1.25
Weighted average shares outstanding used in computing basic earnings per share		11,439	11,408
Diluted earnings per share	[1]	$ 1.28	$ 1.24
Weighted average shares outstanding used in computing diluted earnings per share		11,593	11,479

[1] Basic and fully diluted earnings per share for class A and class B common stock are the same.