Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue:
Subscription and support	$ 33,154	$ 19,407	$ 60,883	$ 37,542
Perpetual license	683	1,746	2,309	2,440
Total product revenue	33,837	21,153	63,192	39,982
Professional services	2,109	2,128	4,369	4,051
Total revenue	35,946	23,281	67,561	44,033
Cost of revenue:
Subscription and support	9,580	6,676	18,829	12,569
Professional services	1,269	1,327	2,665	2,462
Total cost of revenue	10,849	8,003	21,494	15,031
Gross profit	25,097	15,278	46,067	29,002
Operating expenses:
Sales and marketing	5,248	4,037	9,656	7,258
Research and development	5,286	4,003	10,177	7,480
Refundable Canadian tax credits	(203)	(112)	(305)	(229)
General and administrative	8,464	6,576	15,464	12,480
Depreciation and amortization	3,853	1,299	5,983	2,463
Acquisition-related expenses	3,140	2,278	6,242	5,969
Total operating expenses	25,788	18,081	47,217	35,421
Loss from operations	(691)	(2,803)	(1,150)	(6,419)
Other expense:
Interest expense, net	(3,143)	(1,160)	(5,637)	(2,095)
Loss on debt extinguishment	0	(1,634)	0	(1,634)
Other income (expense), net	(524)	(18)	(221)	(130)
Total other expense	(3,667)	(2,812)	(5,858)	(3,859)
Loss before provision for income taxes	(4,358)	(5,615)	(7,008)	(10,278)
Provision for income taxes	(872)	(196)	(1,383)	(1,147)
Net loss	$ (5,230)	$ (5,811)	$ (8,391)	$ (11,425)
Net loss per common share:
Net loss per common share, basic and diluted (in USD per share)	$ (0.26)	$ (0.33)	$ (0.42)	$ (0.66)
Weighted-average common shares outstanding, basic and diluted (in shares)	19,901,599	17,778,184	19,830,401	17,374,789