XML 50 R33.htm IDEA: XBRL DOCUMENT v3.8.0.1
Properties (Tables)
 12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
Schedule of Real Estate Properties [Table Text Block]
Properties at December 31, 2017 and 2016 are summarized as follows:
 
2017
 
2016
Land
$
232,970


$
233,303

Buildings, improvements, and equipment
3,838,862


3,639,256

Construction in process and pre-development costs
389,213


301,395

 
$
4,461,045


$
4,173,954

Accumulated depreciation and amortization
(1,276,916
)

(1,147,390
)
 
$
3,184,129


$
3,026,564