Noncontrolling Interests (Components Of Noncontrolling Interests) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	$ 4,290	$ 4,331
Australia Country Cinemas, Pty Ltd [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	313	318
Shadow View Land And Farming LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	1,929	1,940
Sutton Hill Capital, LLC [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests in consolidated subsidiaries	$ 2,048	$ 2,073