Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue:
Revenue	$ 51,472	$ 47,926	$ 106,289	$ 94,579
Cost of revenue:
Cost of revenue	17,224	19,899	36,392	38,541
Gross profit	34,248	28,027	69,897	56,038
Operating expenses:
Research and development	7,855	9,131	16,139	17,984
Sales and marketing	18,130	13,383	34,279	27,557
General and administrative	7,418	6,407	14,477	12,939
Merger-related	255	259	255	5,768
Other (benefit) expense			(1,965)
Total operating expenses	33,658	29,180	63,185	64,248
Income (loss) from operations	590	(1,153)	6,712	(8,210)
Other expense, net	117	(27)	(618)	(495)
Income (loss) before income taxes	707	(1,180)	6,094	(8,705)
Provision for income taxes	(163)	115	94	443
Net income (loss)	$ 870	$ (1,295)	$ 6,000	$ (9,148)
Net income (loss) per share—basic and diluted
Basic	$ 0.02	$ (0.03)	$ 0.15	$ (0.23)
Diluted	$ 0.02	$ (0.03)	$ 0.14	$ (0.23)
Weighted-average shares—basic and diluted
Basic	40,615,149	39,291,649	40,385,866	39,136,394
Diluted	42,208,933	39,291,649	42,390,641	39,136,394
Subscription and Support Revenue [Member]
Revenue:
Revenue	$ 48,602	$ 45,617	$ 99,441	$ 90,275
Cost of revenue:
Cost of revenue	14,756	17,807	30,434	34,555
Professional Services and Other Revenue [Member]
Revenue:
Revenue	2,870	2,309	6,848	4,304
Cost of revenue:
Cost of revenue	$ 2,468	$ 2,092	$ 5,958	$ 3,986