Non-controlling Interests (Components Of Gain (Loss) Attributable To Noncontrolling Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Noncontrolling Interest [Line Items]
Net income (loss) attributable to non-controlling interests in consolidated subsidiaries	$ 14	$ (79)	[1]	$ (57)	[1]
Australia Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to non-controlling interests in consolidated subsidiaries	140	126		143
Shadow View Land And Farming, LLC [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to non-controlling interests in consolidated subsidiaries	(58)	(77)		(64)
Sutton Hill Capital, LLC [Member]
Noncontrolling Interest [Line Items]
Net income (loss) attributable to non-controlling interests in consolidated subsidiaries	$ (68)	$ (128)		$ (136)

[1] Certain 2015 and 2014 balances included the restatement impact as a result of a change in accounting principle (see Note 2 - Summary of Significant Accounting Policies - Accounting Changes).