Leases - Summary of Operating and Finance Lease Right-of-use Assets and Related Lease Liabilities (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Operating Leases
Right of use asset	$ 11,249
Lease liability	$ 12,428
Weighted average remaining lease term (in years)	9 years 4 months 13 days
Weighted average discount rate	3.42%
Finance Lease
Right of use asset	$ 3,582
Lease liability	$ 3,601
Weighted average remaining lease term (in years)	19 years 11 months 1 day
Weighted average discount rate	3.81%