Leases - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 lease	Sep. 30, 2022 property	Sep. 30, 2022 USD ($)	Sep. 30, 2022	Dec. 31, 2021 USD ($) property
Operating Leased Assets [Line Items]
Number of postal properties subject to direct financing leases (in properties)					2	2			2
Number of operating leases (in properties) | property						56
Number of leases acquired with purchase price greater than value of underlying asset (in properties) | property						53
Consideration							$ 40,100
Aggregate purchase price							47,800
Number of operating leases not acquired (in properties) | property						3
Purchase price for postal properties							2,600
Direct financing lease revenue	$ 300	$ 10	$ 800	$ 30
ROU asset – operating leases							968		$ 1,058
Lease liability – operating leases							$ 971
Weighted average remaining lease term	25 years		25 years
Operating lease expense	$ 60	$ 60	$ 200	$ 200
Minimum
Operating Leased Assets [Line Items]
Remaining lease term	2 years		2 years
Weighted average discount rate								4.25%
Maximum
Operating Leased Assets [Line Items]
Remaining lease term	56 years		56 years
Weighted average discount rate								5.76%