Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Summary of Future Minimum Rental Payments Due under Company's Facilities Lease

At December 31, 2017, future minimum rental payments due under the Company’s facilities lease were as follows (in thousands):

Year ending December 31,
2018	$	2,411
2019		—
2020		—
2021		—
2022		—
Thereafter		—
Total lease payments	$	2,411