Leases - Schedule of Maturity of Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease payments excluding amount of legally binding lease payments	$ 2,960
Operating Leases
2019	1,309
2020	1,405
2021	1,458
2022	1,478
2023	1,413
After 2023	16,623
Total lease payments	23,686
Less: Interest	6,577
Operating lease liabilities	17,109	$ 0
Finance Leases
2019	79
2020	105
2021	105
2022	105
2023	105
After 2023	315
Total lease payments	814
Less: Interest	129
Present value of lease liabilities	685
Total
2019	1,388
2020	1,510
2021	1,563
2022	1,583
2023	1,518
After 2023	16,938
Total lease payments	24,500
Less: Interest	6,706
Present value of lease liabilities	$ 17,794