Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Total revenue	$ 132,656	$ 119,912	$ 292,437	$ 270,075
Total cost of revenue	29,523	31,946	61,126	65,368
Gross profit	103,133	87,966	231,311	204,707
Operating expenses:
Research and development	46,477	38,757	89,571	77,033
Sales and marketing	39,116	31,909	74,798	63,979
General and administrative	24,367	21,861	47,936	45,787
Amortization of intangible assets	6,208	4,615	12,111	9,492
Other operating income, net	(5,767)	(585)	(6,548)	(1,202)
Total operating expenses	110,401	96,557	217,868	195,089
Operating (loss) income	(7,268)	(8,591)	13,443	9,618
Interest expense	700	2,988	1,285	5,961
Other expense, net	21,907	708	23,975	1,543
(Loss) income before income taxes	(29,875)	(12,287)	(11,817)	2,114
Income tax expense	3,899	1,361	10,429	1,402
Net (loss) income	$ (33,774)	$ (13,648)	$ (22,246)	$ 712
(Loss) income per share:
Net (loss) income per share attributable to common stockholders, basic	$ (0.43)	$ (0.18)	$ (0.28)	$ 0.01
Net (loss) income per share attributable to common stockholders, diluted	$ (0.43)	$ (0.18)	$ (0.28)	$ 0.01
Weighted average shares outstanding:
Weighted average number of shares used in computing net (loss) income per share, basic	78,948	75,263	79,204	74,959
Weighted average number of shares used in computing net (loss) income per share, diluted	78,948	75,263	79,204	79,851
Total Software and Related Services [Member]
Total revenue	$ 124,269	$ 107,039	$ 274,227	$ 244,678
Total cost of revenue	22,468	21,391	45,909	44,463
License [Member]
Total revenue	82,688	66,632	188,857	163,027
Total cost of revenue	4,120	3,617	8,807	9,012
Maintenance and Other Services [Member]
Total revenue	34,205	32,926	68,933	66,072
Total cost of revenue	12,884	12,043	25,603	23,598
Total Software [Member]
Total revenue	116,893	99,558	257,790	229,099
Total cost of revenue	17,004	15,660	34,410	32,610
Software Related Services [Member]
Total revenue	7,376	7,481	16,437	15,579
Total cost of revenue	5,464	5,731	11,499	11,853
Client Engineering Services [Member]
Total revenue	7,047	10,268	15,059	20,945
Total cost of revenue	5,914	8,293	12,555	17,181
Other [Member]
Total revenue	1,340	2,605	3,151	4,452
Total cost of revenue	$ 1,141	$ 2,262	$ 2,662	$ 3,724