Leases - Lessee Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) option	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) option	Sep. 30, 2018 USD ($)
Leases [Abstract]
Number of extension options (option) | option	1		1
Lessee, operating lease, renewal term (years)	10 years		10 years
Right-of-use asset	$ 4,663		$ 4,663
Lease liability	$ 4,993		$ 4,993
Weighted average discount rate (percentage)	4.53%		4.53%
Operating leases, rent expense	$ 186	$ 186	$ 559	$ 559
Operating lease, payments	$ 200	$ 200	$ 600	$ 600