Condensed Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Total revenue		$ 158,851	$ 127,880	$ 452,427	$ 361,875
Cost of revenue:
Total cost of revenue	[1]	61,183	47,523	168,168	131,029
Operating expenses:
Sales and marketing		18,410	14,533	52,405	43,392
General and administrative		17,410	18,701	55,634	51,785
Research and development		36,914	29,461	113,280	84,375
Amortization and depreciation		6,878	5,467	20,023	15,833
Total operating expenses		79,612	68,162	241,342	195,385
Operating income		18,056	12,195	42,917	35,461
Interest expense		(556)	(715)	(2,069)	(2,322)
Interest income		118	2,703	734	4,317
Other income, net		24,753	6,380	24,910	6,468
Income before income taxes		42,371	20,563	66,492	43,924
Provision for income taxes		6,546	2,873	5,471	3,428
Net income		35,825		61,021	40,496
Net loss attributable to redeemable noncontrolling interest		259		865
Net income		$ 36,084	17,690	$ 61,886	40,496
Net income attributable to common stockholders			$ 17,690		$ 40,496
Net income per share:
Basic (in dollars per share)		$ 0.74	$ 0.36	$ 1.27	$ 0.84
Diluted (in dollars per share)		$ 0.71	$ 0.35	$ 1.22	$ 0.81
Weighted average common shares outstanding:
Basic (in shares)		49,007,343	48,518,041	48,842,333	48,360,927
Diluted (in shares)		50,979,679	50,152,807	50,673,752	50,238,409
SaaS and license
Revenue:
Total revenue		$ 100,126	$ 84,924	$ 287,780	$ 247,313
Cost of revenue:
Total cost of revenue	[1]	14,344	12,438	39,673	37,428
Hardware and other
Revenue:
Total revenue		58,725	42,956	164,647	114,562
Cost of revenue:
Total cost of revenue	[1]	$ 46,839	$ 35,085	$ 128,495	$ 93,601

[1] Exclusive of amortization and depreciation shown in operating expenses below.