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Casualty Loss (Details) In Millions, unless otherwise specified			12 Months Ended
	Dec. 31, 2012 Rialto Cinemas [Member] item	Feb. 22, 2011 Rialto Cinemas [Member] item	Dec. 31, 2012 Christchurch, New Zealand [Member] USD ($)	Dec. 31, 2012 Christchurch, New Zealand [Member] NZD	Feb. 22, 2011 Christchurch, New Zealand [Member] item
Casualty Loss [Line Items]
Number of screens on property	13	3			8
Insurance proceeds			$ 1.1	1.3

The gross income statement effect of insurance proceeds for each material event or transaction (that would not reasonably be expected to recur in the foreseeable future) that possesses a high degree of abnormality and are clearly unrelated to, or incidentally related to, the ordinary and typical activities of the entity.

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