Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Schedule of Useful Lives of Property and Equipment

The estimated useful lives of property and equipment are as follows:

Computer hardware and equipment	3 - 5 years
Purchased software and licenses	3 - 5 years
Furniture and fixtures	7 years
Leasehold improvements	Lesser of estimated useful life or lease term

Schedule of Disaggregation of Revenue by Major Source

The following tables disaggregate the Company's revenue by major source:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Subscription	$	56,143	$	41,895	$	160,328	$	121,262
Transactional	12,264		10,417		35,977		27,936
Services and Other	11,295		8,229		32,339		24,725
Total Revenues	$	79,702	$	60,541	$	228,644	$	173,923

Schedule of Net Loss Per Share, Basic and Diluted

The following table sets forth the computations of net loss per share for the periods listed:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Numerator:
Net loss	$	(18,569	)	$	(8,859	)	$	(55,211	)	$	(23,534	)
Denominator:
Weighted-average common shares outstanding, basic and diluted	47,782			42,993			45,519			42,597
Net loss per common share, basic and diluted	$	(0.39	)	$	(0.21	)	$	(1.21	)	$	(0.55	)

Schedule of Antidilutive Securities Excluded from Computation of Loss Per Share

	As of September 30,
	2019	2018
Stock options, restricted stock units, and market stock units	3,940	4,842
Shares related to the 2023 Notes	1,226	210
Shares subject to warrants related to the issuance of the 2023 Notes	189	—
	5,355	5,052