CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net revenues:
Revenues	$ 100,649	$ 94,364
Cost of revenues:
Total cost of revenues	33,885	32,948
Gross profit	66,764	61,416
Operating expenses:
Research and development	16,736	15,417
Marketing and selling	21,927	20,744
General and administrative	14,811	13,635
Restructuring costs, net	15	1,074
Total operating expenses	53,489	50,870
Operating income	13,275	10,546
Interest expense, net	(1,476)	(2,118)
Other expense, net	(87)	(3,555)
Income before income taxes	11,712	4,873
Provision for income taxes	1,126	482
Net income	$ 10,586	$ 4,391
Net income per common share – basic	$ 0.24	$ 0.10
Net income per common share – diluted	$ 0.23	$ 0.10
Weighted-average common shares outstanding – basic	44,817	44,559
Weighted-average common shares outstanding – diluted	45,408	46,204
Subscription
Net revenues:
Revenues	$ 32,954	$ 24,868
Cost of revenues:
Total cost of revenues	5,602	2,615
Maintenance
Net revenues:
Revenues	28,327	29,852
Cost of revenues:
Total cost of revenues	5,277	5,574
Integrated solutions & other
Net revenues:
Revenues	39,368	39,644
Cost of revenues:
Total cost of revenues	$ 23,006	$ 24,759