Operating Leases

The Company maintains operating leases for our manufacturing, research and development and general operations with terms that expire from 2020 to 2026 and include renewal options to extend the lease term at the then current fair market rental for each of the lease agreements. None of the options to extend the rental term of existing leases were considered reasonably certain as of March 31, 2019. The Company’s lease agreements do not contain any material variable lease payments, material residual value guarantees or any material restrictive covenants.

The components of lease expense were as follows (in thousands):



Three Months Ended March 31,	2019
Operating lease cost	$	1,413

Other information related to leases was as follows (in thousands, except lease term and discount rate):



Three Months Ended March 31,	2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	1,373

Weighted Average Remaining Lease Term (years)	7.1

Weighted Average Discount Rate	7.0		%

Future minimum lease payments under the lease agreements as of March 31, 2019 were as follows (in thousands):



Remainder of 2019	$	4,118
2020	5,560
2021	5,593
2022	5,708
2023	5,869
Thereafter	13,367
Total future minimum lease payments	$	40,215
Less: imputed interest	(8,608		)
Total	$	31,607

Disclosures related to periods prior to adoption

Future minimum lease payments under non-cancellable leases as of December 31, 2018 were as follows (in thousands):



2019	$	5,526
2020	5,560
2021	5,593
2022	5,708
2023	5,869
Thereafter	13,458
Total future minimum lease payments	$	41,714