Notes Payable (Summary Of Notes Payable) (Details) (USD $) In Thousands, unless otherwise specified			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended		9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 NAB Australian Corporate Term Loan [Member]	Dec. 31, 2011 NAB Australian Corporate Term Loan [Member]	Sep. 30, 2012 NAB Australian Corporate Revolver [Member]	Dec. 31, 2011 NAB Australian Corporate Revolver [Member]	Sep. 30, 2012 Australian Shopping Center Loans [Member]	Dec. 31, 2011 Australian Shopping Center Loans [Member]	Sep. 30, 2012 New Zealand Corporate Credit Facility [Member]	Dec. 31, 2011 New Zealand Corporate Credit Facility [Member]	Sep. 30, 2012 Trust Preferred Securities [Member]	Dec. 31, 2011 Trust Preferred Securities [Member]	Sep. 30, 2012 Previous US Cinemas 1, 2, 3 Term Loan [Member]	Dec. 31, 2011 Previous US Cinemas 1, 2, 3 Term Loan [Member]	Jun. 30, 2012 US Cinema 1, 2, 3 Term Loan [Member]	Sep. 30, 2012 US Cinema 1, 2, 3 Term Loan [Member]	Sep. 30, 2012 US GE Capital Term Loan [Member]	Dec. 31, 2011 US GE Capital Term Loan [Member]	Sep. 30, 2012 US Liberty Theaters Term Loans [Member]	Dec. 31, 2011 US Liberty Theaters Term Loans [Member]	Sep. 30, 2012 US Nationwide Loan 1 [Member]	Dec. 31, 2011 US Nationwide Loan 1 [Member]	Sep. 30, 2012 Bank Of America Letter Of Credit [Member]	Sep. 30, 2012 US Sanborn Note [Member]	Dec. 31, 2011 US Sanborn Note [Member]	Sep. 30, 2012 US Sutton Hill Capital Note - Related Party [Member]	Dec. 31, 2011 US Sutton Hill Capital Note - Related Party [Member]	Sep. 30, 2012 US Union Square Term Loan - Sun Life [Member]	Dec. 31, 2011 US Union Square Term Loan - Sun Life [Member]
Debt Instrument [Line Items]
Debt Instrument			6.20%	7.20%	6.20%	7.20%			4.70%	4.15%	4.44%	9.22%		6.73%		5.24%	5.50%	5.50%	6.20%	6.20%	8.50%	8.50%	3.72%		7.00%	8.25%	8.25%	5.92%	5.92%
Maturity Date			June 30, 2014		June 30, 2014		2012-2014		March 31, 2015		April 30, 2027		July 1, 2012		June 27, 2013	June 27, 2013	December 1, 2015		April 1, 2013		February 21, 2013		August 31, 2014	January 31, 2012		December 31, 2013		May 1, 2015
Notes Payable	$ 202,312	$ 209,614	$ 83,883	$ 88,671			$ 260	$ 384	$ 23,220	$ 21,854	$ 27,913	$ 27,913		$ 15,000	$ 15,000	$ 15,000	$ 27,734	$ 32,188	$ 6,469	$ 6,583	$ 594	$ 597	$ 1,232		$ 250	$ 9,000	$ 9,000	$ 7,007	$ 7,174