Leases - Getty Petroleum Marketing Inc. - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2023 USD ($) Portfolio Property
Leases [Line Items]
Number of leased properties subject to long-term triple-net leases | Property	300
Number of long-term triple-net leases during the period | Portfolio	12
Number of leased properties as single unit triple net leases | Portfolio	23
Number of properties under redevelopment | Property	3
Number of properties vacant | Property	2
Maximum lease commitment for capital expenditure	$ 6,523,000
Unitary triple-net lease agreements average remaining lease	5 years
USTs [Member]
Leases [Line Items]
Asset retirement obligations removed from balance sheet	$ 13,813,000
Net asset retirement costs related to USTs removed from balance sheet	10,808,000
Deferred rental revenue	777,000
Deferred rental revenue accumulated amortization	$ 2,228,000
Getty Petroleum Marketing Inc [Member]
Leases [Line Items]
Number of properties previously leased | Property	328