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Marketable Securities
3 Months Ended
Mar. 31, 2017
Marketable Securities  
Marketable Securities

5. Marketable Securities

Below is a summary of our marketable securities portfolio as of March 31, 2017 and December 31, 2016.

(Amounts in thousands)As of March 31, 2017As of December 31, 2016
GAAPUnrealizedGAAPUnrealized
Fair ValueCostGainFair ValueCostGain
Equity securities:
Lexington Realty Trust$184,320$72,549$111,771$199,465$72,549$126,916
Other4,3756503,7254,2396503,589
$188,695$73,199$115,496$203,704$73,199$130,505