Noncontrolling Interests (Components Of Noncontrolling Interests) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	$ 4,431	$ 4,331
Australia Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	275	318
Shadow View Land And Farming, LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	2,010	1,940
Sutton Hill Capital, LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	$ 2,146	$ 2,073