Property And Equipment (Summary Of Investment And Development Property) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Investment and development property	$ 77,309	$ 74,230
Land [Member]
Property, Plant and Equipment [Line Items]
Investment and development property	60,231	59,550
Construction-In-Progress (Including Capitalized Interest) [Member]
Property, Plant and Equipment [Line Items]
Investment and development property	$ 17,078	$ 14,680