Significant Accounting Policies - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) Segment	Mar. 31, 2019 USD ($) $ / shares
Accounting Policies [Line Items]
Number of operating segment | Segment	1
Impairment of long-lived assets	$ 0
Tax position likely of being realized upon ultimate settlement	greater than 50%
Percentage of likelihood of realization of tax position upon ultimate settlement, minimum	50.00%
Contract payment net terms	30 days
Concessions and cancellations period allowed for standard subscription contract prior to adoption	60 days
Revenue recognition, contractual renewal period	1 year
Deferred commission amortized period	6 years
Other Noncurrent Assets | ASU 2018-15
Accounting Policies [Line Items]
Implementation cost capitalized	$ 600,000
Minimum
Accounting Policies [Line Items]
Revenue recognition initial contractual term	12 months
Maximum
Accounting Policies [Line Items]
Revenue recognition initial contractual term	18 months
Amortization period of asset	1 year
Restatement Adjustment
Accounting Policies [Line Items]
Increase in sales and marketing expenses due to correction		$ 1,100,000
Increase in net loss per share due to correction | $ / shares		$ 0.01
Increase in accumulated deficit due to correction		$ 1,100,000