Non-controlling Interests (Components Of Income Attributable To Non-controlling Interest) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	$ (175)	$ (213)
Australian Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	(13)	10
Sutton Hill Properties, LLC [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to noncontrolling interests in consolidated subsidiaries	$ (162)	$ (223)