Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2015

Unrealized Gain (Loss) on Investments [Abstract]

Unrealized Gain (Loss) on Investments [Table Text Block]

(Amounts in thousands)		As of June 30, 2015						As of December 31, 2014
				GAAP		Unrealized				GAAP		Unrealized
		Fair Value		Cost		Gain		Fair Value		Cost		Gain
Equity securities:
	Lexington Realty Trust	$	156,617	$	72,549	$	84,068	$	202,789	$	72,549	$	130,240
	Other		3,374		-		3,374		3,534		-		3,534
		$	159,991	$	72,549	$	87,442	$	206,323	$	72,549	$	133,774