Properties (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of Real Estate Properties [Table Text Block]

Properties at December 31, 2019 and 2018 are summarized as follows:

	2019			2018
Land	$	232,744		$	233,301
Buildings, improvements, and equipment	4,395,463			4,342,664
Construction in process and pre-development costs	102,854			141,604
	$	4,731,061		$	4,717,569
Accumulated depreciation and amortization	(1,514,992		)	(1,404,692		)
	$	3,216,069		$	3,312,877