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Investment And Other Gains Investment And Other Gains (Schedule of Investment And Other Gains) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Investment And Other Gains [Abstract]      
Gain on payoff of mortgage note receivable $ 0 $ 4,605 $ 0
Gains on sales of marketable securities 0 30 9,899
Gain on purchase liability settlement 3,256 0 0
Other gains 50 242 362
Investment and other gains $ 3,306 $ 4,877 $ 10,261