Real Estate Transactions (Narrative) (Details) $ in Millions, $ in Millions				1 Months Ended					3 Months Ended	12 Months Ended
	Feb. 23, 2024 USD ($)	Jun. 30, 2021 USD ($)	Mar. 05, 2021 USD ($)	Jun. 30, 2023 USD ($) a ft²	May 31, 2023 USD ($)	Feb. 28, 2021 USD ($)	Jan. 31, 2021 USD ($) a	Dec. 31, 2020 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2023 USD ($) a	Oct. 25, 2023 USD ($)	Oct. 25, 2023 AUD ($)	Sep. 30, 2021 USD ($)	Aug. 30, 2021 USD ($)	Aug. 30, 2021 NZD ($)	Jun. 09, 2021 USD ($)	Jun. 09, 2021 AUD ($)	Mar. 04, 2021 USD ($)	Mar. 04, 2021 NZD ($)	Feb. 23, 2021 NZD ($)	Jan. 31, 2021 AUD ($)	Aug. 28, 2019 USD ($)
Auburn/Redyard [Member]
Property, Plant and Equipment [Line Items]
Selling price		$ 69,579,000														$ 69,600,000	$ 90.0
Loss on book value		38,726,000
Auburn/Redyard [Member] | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Acres of land announced to be sold | a							2,600,000
Reclassified the current carrying value of property							$ 30,200,000														$ 39.1
Adjustment to sale price							$ 0
Manukau [Member]
Property, Plant and Equipment [Line Items]
Selling price									$ 56,058,000									$ 56,100,000	$ 77.2	$ 1.0
Loss on book value									40,926,000
Manukau [Member] | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Reclassified the current carrying value of property								$ 13,600,000
Adjustment to sale price								0
Coachella [Member]
Property, Plant and Equipment [Line Items]
Selling price									11,000,000
Proceeds from the sale property			$ 5,300,000
Loss on book value									$ 6,348,000
Coachella [Member] | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Reclassified the current carrying value of property								4,400,000
Adjustment to sale price								$ 0
Royal George Theatre [Member]
Property, Plant and Equipment [Line Items]
Selling price		7,075,000
Proceeds from the sale property		6,800,000
Loss on book value		$ 4,956,000
Royal George Theatre [Member] | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Reclassified the current carrying value of property						$ 1,800,000
Adjustment to sale price						$ 0
Invercargill [Member]
Property, Plant and Equipment [Line Items]
Selling price													$ 3,803,000	$ 3,800,000	$ 5.4
Loss on book value													$ 2,372,000
Maitland [Member]
Property, Plant and Equipment [Line Items]
Selling price										$ 1,774,000	$ 1,800,000	$ 2.8
Loss on book value										$ 800,000
Culver City Los Angeles [Member] | Disposal Group, Held-for-Sale or Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Adjustment to sale price					$ 0
Book value					$ 10,700,000
Culver City Los Angeles [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Subsequent Event [Member]
Property, Plant and Equipment [Line Items]
Selling price	$ 8,300,000
Proceeds from the sale property	10,000,000.0
Loss on book value	(700,000)
Brokerage fees	210,000
Taxes on purchase	$ 140,000
2483 Trenton Avenue Williamsport Pennsylvania [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Acres of land announced to be sold | a				26.6						26.6
Book value				$ 460,000
Village East Cinema [Member]
Property, Plant and Equipment [Line Items]
Selling price																						$ 5,900,000
Lease term										13 years
Land [Member] | 2483 Trenton Avenue Williamsport Pennsylvania [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Property, Plant and Equipment [Line Items]
Area of Land | ft²				18,000
Shadow View Land And Farming, LLC [Member]
Property, Plant and Equipment [Line Items]
Noncontrolling interests										50.00%
Shadow View Land And Farming, LLC [Member] | Coachella [Member]
Property, Plant and Equipment [Line Items]
Percentage of share of the 5-screen Elsternwick Classic cinema			50.00%						50.00%
Selling price			$ 11,000,000.0
Estate of James J. Cotter, Sr. [Member] | Coachella [Member]
Property, Plant and Equipment [Line Items]
Percentage of share of the 5-screen Elsternwick Classic cinema			50.00%