Condensed Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Revenue:
SaaS and license revenue		$ 50,226	$ 40,012
Hardware and other revenue		23,968	19,031
Total revenue		74,194	59,043
Cost of revenue:
Cost of SaaS and license revenue	[1]	8,092	6,781
Cost of hardware and other revenue	[1]	18,543	14,335
Total cost of revenue	[1]	26,635	21,116
Operating expenses:
Sales and marketing		10,314	8,976
General and administrative		15,375	13,129
Research and development		14,521	9,970
Amortization and depreciation		2,864	1,591
Total operating expenses		43,074	33,666
Operating income		4,485	4,261
Interest expense		(216)	(41)
Other income, net		237	111
Income before income taxes		4,506	4,331
Provision for income taxes		543	1,593
Net income		3,963	2,738
Income allocated to participating securities		(2)	(5)
Net income attributable to common stockholders		$ 3,961	$ 2,733
Net income per share:
Basic (in dollars per share)		$ 0.09	$ 0.06
Diluted (in dollars per share)		$ 0.08	$ 0.06
Weighted average common shares outstanding:
Basic (in shares)		46,225,473	45,526,058
Diluted (in shares)		48,758,774	47,303,896

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