CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Total revenues		$ 510,762	$ 480,735	$ 486,327
Cost of revenues:
Total cost of revenues		91,909	91,055	99,974
Gross profit		418,853	389,680	386,353
Operating expenses:
Sales and marketing		160,141	148,910	191,235
Research and development		117,117	103,561	109,423
General and administrative		95,501	80,136	86,697
Digital asset impairment losses		830,621	70,698	0
Total operating expenses		1,203,380	403,305	387,355
Loss from operations		(784,527)	(13,625)	(1,002)
Interest (expense) income, net		(29,149)	710	10,909
Other income (expense), net		2,287	(7,038)	28,356
(Loss) income before income taxes		(811,389)	(19,953)	38,263
(Benefit from) provision for income taxes		(275,909)	(12,429)	3,908
Net (loss) income		$ (535,480)	$ (7,524)	$ 34,355
Basic (loss) earnings per share	[1]	$ (53.44)	$ (0.78)	$ 3.35
Weighted average shares outstanding used in computing basic (loss) earnings per share		10,020	9,684	10,256
Diluted (loss) earnings per share	[1]	$ (53.44)	$ (0.78)	$ 3.33
Weighted average shares outstanding used in computing diluted (loss) earnings per share		10,020	9,684	10,328
Product licenses
Revenues:
Total revenues		$ 101,804	$ 86,743	$ 87,471
Cost of revenues:
Total cost of revenues		1,721	2,293	2,131
Subscription services
Revenues:
Total revenues		43,069	33,082	29,394
Cost of revenues:
Total cost of revenues		16,901	14,833	15,161
Total product licenses and subscription services
Revenues:
Total revenues		144,873	119,825	116,865
Cost of revenues:
Total cost of revenues		18,622	17,126	17,292
Product support
Revenues:
Total revenues		281,209	284,434	292,035
Cost of revenues:
Total cost of revenues		19,254	23,977	28,317
Other services
Revenues:
Total revenues		84,680	76,476	77,427
Cost of revenues:
Total cost of revenues		$ 54,033	$ 49,952	$ 54,365

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