Leases (Tables)

9 Months Ended

Sep. 30, 2019

Leases [Abstract]

Summary of Future Undiscounted Cash Inflows Under the Sublease

As of September 30, 2019, future undiscounted cash inflows under the sublease are as follows:

Year Ending December 31,
2019 (remaining 3 months)	$	307
2020		1,248
2021		633
	$	2,188

Summary of Operating Lease Assets and Liabilities

The following table summarizes the presentation in the Company’s condensed consolidated balance sheets of its operating leases:

	As of September 30, 2019
Assets:
Operating lease assets	$	11,899
Liabilities:
Operating lease liabilities	$	4,335
Operating lease liabilities, net of current portion		16,844
Total operating lease liabilities	$	21,179

Summary of Lease Costs

The following table summarizes the effect of lease costs in the Company’s condensed consolidated statement of operations and comprehensive loss:

	For the Three Months Ended			For the Nine Months Ended
	September 30, 2019			September 30, 2019
Operating lease costs	$	1,148		$	3,456
Short-term lease costs		330			1,547
Variable lease costs		716			2,302
Sublease income		(439	)		(439	)
Total lease costs	$	1,755		$	6,866

Schedule of Minimum Lease Payments

The minimum lease payments for the next five years and thereafter is expected to be as follows (in thousands):

	As of September 30, 2019
2019 (remaining 3 months)	$	1,578
2020		6,302
2021		6,461
2022		6,390
2023		5,158
2024 and thereafter		—
Total future minimum lease payments	$	25,889
Less: interest		(4,710	)
Present value of operating lease liabilities	$	21,179

Summary of Future Minimum Lease Payments Under Operating Leases

The future minimum lease payments under the Company’s operating leases as of December 31, 2018, were as follows (in thousands):

	As of December 31, 2018
2019	$	6,342
2020		6,120
2021		6,221
2022		6,372
2023		5,158
2024 and thereafter		—
Total future minimum lease payments	$	30,213