Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrued contract labor costs	$ 1,921	$ 3,128
Accrued hosting costs	1,865	579
Accrued reimbursable employee expenses	1,353	459
Accrued legal costs	422	0
Accrued marketing and tradeshow expenses	365	229
Accrued audit and tax expenses	315	375
Accrued third party license fees	288	729
Other accrued expenses	959	1,965
Total	$ 7,488	$ 7,464