Management Agreements and Leases - Net Lease Portfolio (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) ft² tenant brand industry retailProperty property	Dec. 31, 2020 USD ($)	Mar. 12, 2020 ft²	Sep. 20, 2019 tenant brand industry
Management Agreements and Leases [Line Items]
Number of properties | property	1,091
Number of tenants | tenant				279
Number of brands | brand				163
Number of industries | industry				23
COVID-19
Management Agreements and Leases [Line Items]
Deferred rent agreement amount	$ 2,792
Number of additional rent deferral agreements | tenant	4,000
Amount of deferred annual minimum rents	$ 7,554
Number of rent deferral agreements | tenant	7
Percentage of rental income	2.00%
Reserves for uncollectible amounts against rental income	$ 9	$ 9,892
COVID-19 | Other, net of accumulated amortization of $382 and $1,188, respectively
Management Agreements and Leases [Line Items]
Reserves for uncollectible amounts against rental income	$ 15,519
Reserves for uncollectible rents		$ 18,230
COVID-19 | Maximum
Management Agreements and Leases [Line Items]
Deferred rent repayment period	24 months
Net Lease Property
Management Agreements and Leases [Line Items]
Number of properties | retailProperty	1,091
Area of real estate (in sqft) | ft²	154,206		6,696
Annual minimum returns and rents	$ 369,733
Weighted average lease term	10 years 2 months 12 days
Percentage of portfolio leased by tenants	98.10%
Number of brands | brand	134
Number of industries | industry	21