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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Components of Lease Cost for Operating and Finance Leases

The components of lease cost for operating and finance leases were (in thousands):

	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
Operating leases	2019
Operating lease cost	$	907	$	2,437
Short-term lease cost		2		160
Variable lease cost		268		794
		1,177		3,391
Finance leases
Depreciation on finance leases		47		141
Interest on finance leases		5		17
		52		158
Total lease cost	$	1,229	$	3,549

Summary of Weighted Average Remaining Lease Term and Weighted Average Discount Rate for Operating and Finance Leases

The weighted average remaining lease term and the weighted average discount rate for operating and finance leases at September 30, 2019 was:

	Operating Lease			Finance Leases
Weighted average discount rate		8.0	%		6.0	%
Weighted average remaining lease term (years)		8.4			1.3

Summary of Maturity of Lease Liabilities for Operating and Finance Leases

The following table reconciles the undiscounted cash flows for the operating and finance leases at September 30, 2019 to the operating and finance lease liabilities recorded on the balance sheet:

Maturity of lease liabilities	Operating Leases		Finance Leases
	(in thousands)
2019	$	1,003	$	72
2020		3,892		214
2021		4,236		2
2022		4,389		—
2023		3,574		—
Thereafter		18,067		—
Total lease payments		35,161		288
Less: imputed interest		9,851		10
Total lease liabilities	$	25,310	$	278
Current lease liabilities		1,925		258
Long-term lease liabilities		23,385		20

Schedule of Aggregate Future Lease Payments for Operating and Capital Leases

The aggregate future lease payments for operating and capital leases as of December 31, 2018 are as follows:

	Operating Lease		Finance Leases
	(in thousands)
2019	$	3,175	$	287
2020		3,270		214
2021		3,369		2
2022		3,470		—
2023		3,574		—
Thereafter		18,067		—
Total future minimum lease payments	$	34,925	$	503
Less amounts representing interest				27
Capital lease obligations at December 31, 2018				476
Less current portion of capital lease obligations				266
Capital lease obligations, net of current portion			$	210