Marketable Securities and Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Unrealized Gain (Loss) on Investments [Abstract]

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

(Amounts in thousands)		As of March 31, 2014						As of December 31, 2013
				GAAP		Unrealized				GAAP		Unrealized
		Fair Value		Cost		Gain		Fair Value		Cost		Gain
Equity securities:
	Lexington	$	201,496	$	72,549	$	128,947	$	188,567	$	72,549	$	116,018
	Other		3,546		59		3,487		3,350		59		3,291
		$	205,042	$	72,608	$	132,434	$	191,917	$	72,608	$	119,309