Leases (Tables)

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Future minimum lease payments under operating leases

Future minimum lease payments under operating leases are (in thousands):

	Operating Leases
2018	$	2,591
2019	2,099
2020	2,099
2021	1,792
2022	1,793
Thereafter	32,882
Total minimum lease payments	$	43,256