Condensed Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Revenue:
Total revenue		$ 172,498	$ 151,939
Cost of revenue:
Total cost of revenue	[1]	65,762	57,980
Operating expenses:
Sales and marketing		18,999	17,075
General and administrative		22,882	20,865
Research and development		42,467	39,730
Amortization and depreciation		7,385	6,422
Total operating expenses		91,733	84,092
Operating income		15,003	9,867
Interest expense		(3,368)	(645)
Interest income		157	459
Other (expense) / income, net		(155)	92
Income before income taxes		11,637	9,773
(Benefit from) / provision for income taxes		(2,913)	1,202
Net income		14,550	8,571
Net loss attributable to redeemable noncontrolling interest		280	236
Net income attributable to common stockholders		$ 14,830	$ 8,807
Net income per share:
Basic (in dollars per share)		$ 0.30	$ 0.18
Diluted (in dollars per share)		$ 0.29	$ 0.18
Weighted average common shares outstanding:
Basic (in shares)		49,561,887	48,725,565
Diluted (in shares)		51,739,461	50,246,987
SaaS and license
Revenue:
Total revenue		$ 107,383	$ 91,950
Cost of revenue:
Total cost of revenue	[1]	15,156	12,328
Hardware and other
Revenue:
Total revenue		65,115	59,989
Cost of revenue:
Total cost of revenue	[1]	$ 50,606	$ 45,652

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