Summary of Quarterly results (Tables)

12 Months Ended

Dec. 31, 2013

Summary of Quarterly Results [Abstract]

Summary of Quarterly Results (Unaudited) [Table Text Block]

					Net Income
					Attributable to			Net Income Per
					Common			Common Share(1)
	(Amounts in thousands, except per share amounts)		Revenues		Stockholders			Basic		Diluted
	2013
		December 31	$	50,496	$	15,790		$	3.09	$	3.09
		September 30		49,886		13,824			2.71		2.71
		June 30		47,302		13,139			2.57		2.57
		March 31		48,775		14,162			2.77		2.77
	2012
		December 31	$	48,491	$	617,157	(2)	$	120.82	$	120.82
		September 30		48,642		18,856			3.69		3.69
		June 30		46,878		18,892			3.70		3.70
		March 31		47,301		19,482			3.81		3.81
_______________________
(1)	The total for the year may differ from the sum of the quarters as a result of weighting.
(2)	Includes a $599,628 net gain on sale of real estate.