Summary of Significant Accounting Policies - (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedules of Concentration Risk

For each significant partner that represented 10% or more of our accounts receivable balance or revenue during the periods presented, revenue as a percentage of total revenue and accounts receivable as a percentage of net accounts receivable were as follows:

	Revenue						Accounts Receivable
	Year Ended December 31,						As of December 31,
	2019		2018		2017		2019		2018
Partner A	29	%	33	%	30	%	23	%	28	%
Partner B	22	%	*		*		25	%	13	%

_________________

*

Less than 10% of total revenue

Schedule of Intangible Assets, Net

	Useful Life
	(in years)
Customer relationships	7–10
Developed technology	5–7
Trade names	2–5

Intangible assets consisted of the following as of December 31, 2019:

	Gross Value		Accumulated Amortization			Net Book Value		Weighted- Average Remaining Useful Life
	(in thousands)							(years)
Customer relationships	$	8,190	$	(1,227	)	$	6,963	7.1
Developed technology	11,020		(1,848		)	9,172		5.7
Trade name	448		(114		)	334		4.0
Total	$	19,658	$	(3,189	)	$	16,469

Intangible assets consisted of the following as of December 31, 2018:

	Gross Value		Accumulated Amortization			Net Book Value		Weighted- Average Remaining Useful Life
	(in thousands)							(years)
Customer relationships	$	3,890	$	(266	)	$	3,624	9.3
Developed technology	1,820		(329		)	1,491		4.3
Trade names	48		(9		)	39		1.4
Total	$	5,758	$	(604	)	$	5,154

Accounts Receivable, Allowance for Credit Loss

The changes in the allowance for doubtful accounts are as follows:

	Year Ended December 31,
	2019			2018			2017
	(in thousands)
Allowance for doubtful accounts—beginning balance	$	(575	)	$	(51	)	$	(92	)
Provision for doubtful accounts	(854		)	(476		)	41
Amounts written off and other adjustments	184			(48		)	—
Allowance for doubtful accounts—ending balance	$	(1,245	)	$	(575	)	$	(51	)

Property and Equipment, Net

Useful lives for property and equipment are as follows:

Property and Equipment	Estimated Useful Life
Furniture and fixtures	3 years
Product tooling equipment	2 years
Computers equipment and software	3 years
Capitalized internal-use software	3 years
Leasehold improvements	Lesser of estimated useful life or remaining lease term

Property and equipment consisted of the following:

	As of December 31,
	2019			2018
	(in thousands)
Computer, equipment and software	$	2,218		$	652
Furniture and fixtures	915			730
Capitalized internal-use software	11,229			5,653
Leasehold improvements	1,092			585
Property and equipment	15,454			7,620
Less: accumulated depreciation	(5,100		)	(1,783		)
Property and equipment, net	$	10,354		$	5,837