Leases - Schedule of Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease payments excluding amount of legally binding lease payments	$ 3,173
Operating Leases
2019	678
2020	1,430
2021	1,483
2022	1,537
2023	1,458
After 2023	17,938
Total lease payments	24,524
Less: Interest	6,662
Operating lease liabilities	17,862	$ 0
Finance Leases
2019	52
2020	105
2021	105
2022	105
2023	105
After 2023	315
Total lease payments	787
Less: Interest	121
Present value of lease liabilities	666
Total
2019	730
2020	1,535
2021	1,588
2022	1,642
2023	1,563
After 2023	18,253
Total lease payments	25,311
Less: Interest	6,783
Present value of lease liabilities	$ 18,528