Leases - Summary of Additional Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lease Cost
Operating lease cost	$ 695	$ 678
Short term lease cost	9	9
Total lease cost	704	687
Other information
Operating leases - operating cash flows	$ 669	$ 682
Weighted average lease term - operating leases, in years	10 years 9 months 18 days	11 years 2 months 19 days
Weighted average discount rate - operating leases (percent)	3.33%	3.31%