Subsequent Event (Details) ft² in Thousands, $ in Thousands			9 Months Ended
	Oct. 26, 2022 USD ($) ft²	Oct. 03, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Subsequent Event [Line Items]
Payments to acquire U.S. Treasury Bills			$ 197,407	$ 0
Investments in U.S. Treasury bills			197,904		$ 0
Investments in U.S. Treasury bills
Subsequent Event [Line Items]
Payments to acquire U.S. Treasury Bills			197,407
Investments in U.S. Treasury bills			$ 200,000
Subsequent Event | Anchor | IKEA | Rego Park 1 Property | Operating Property
Subsequent Event [Line Items]
Area of property (in sqft.) | ft²	112
Payment for termination of lease	$ 10,000
Subsequent Event | Investments in U.S. Treasury bills
Subsequent Event [Line Items]
Payments to acquire U.S. Treasury Bills		$ 166,832
Investments in U.S. Treasury bills		$ 170,000