Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments under operating leases

Future minimum lease payments under operating leases at December 31, 2018 are as follows (in thousands):

Year ending December 31,	Minimum Lease Payments
2019	$	2,562
2020	2,256
2021	2,034
2022	2,001
2023	1,351
Thereafter	9,254
Total	$	19,458