Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Schedule Of Financial Instruments With Fair Values Different From Their Carrying Amount [Table Text Block]

The following are financial instruments for which the Company’s estimates of fair value differ from the carrying amounts (in thousands):

	March 31, 2014				December 31, 2013
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Mortgage notes payable	$	666,305	$	705,244	$	670,151	$	715,244
Unsecured notes payable	$	1,396,891	$	1,477,304	$	1,396,620	$	1,471,041
Variable rate debt	$	528,610	$	526,693	$	528,610	$	526,693
Notes receivable	$	5,826	$	6,795	$	7,026	$	7,759