Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Company Lease of Buildings under Non-Cancellable Operating Leases

Future minimum annual lease payments under such leases as of December 31, 2017 are as follows (in thousands):

Year Ending December 31,
2018	$	2,435
2019		2,031
2020		1,728
2021		1,731
2022		33
Beyond		—
Total	$	7,958