Leases - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) property	Sep. 30, 2020 USD ($)
Lessor, Lease, Description [Line Items]
Number of Properties | property	3,882
Weighted average remaining lease term	15 years 7 months 6 days
Weighted average discount rate	4.91%
Increase (reduction) of right-of-use assets	$ (0.6)	$ 0.9
Increase (reduction) of operating lease liabilities	$ (4.1)	$ 0.9
Minimum [Member]
Lessor, Lease, Description [Line Items]
Lease terms	29 days
Remaining lease terms	2 months 12 days
Maximum [Member]
Lessor, Lease, Description [Line Items]
Lease terms	25 years
Remaining lease terms	77 years 10 months 24 days