Non-controlling Interests (Components Of Income Attributable To Non-controlling Interest) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	$ (65)	$ (122)	$ (361)	$ (228)
Australian Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	25	15	60	76
Shadow View Land And Farming, LLC [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	1	(3)	1	(4)
Sutton Hill Properties, LLC [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	$ (91)	$ (134)	$ (422)	$ (300)