Note 11 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2017

Notes Tables

Fair Value, by Balance Sheet Grouping [Table Text Block]

	September 30, 2017				December 31, 201 6
	Carrying Amounts		Estimated Fair Value		Carrying Amounts		Estimated Fair Value
Notes payable , net (1)	$	4,700,423	$	4,676,777	$	3,927,251	$	3,890,797
Mortgages payable , net (2)	$	850,848	$	852,165	$	1,139,117	$	1,141,047

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Balance at September 30, 2017		Level 1		Level 2		Level 3
Assets:
Marketable equity securities	$	12,715	$	12,715	$	-	$	-
Liabilities:
Interest rate swaps	$	667	$	-	$	667	$	-

	Balance at December 31, 201 6		Level 1		Level 2		Level 3
Assets:
Marketable equity securities	$	6,502	$	6,502	$	-	$	-
Liabilities:
Interest rate swaps	$	975	$	-	$	975	$	-

	Balance at September 30, 2017		Level 1		Level 2		Level 3
Real estate	$	40,558	$	-	$	-	$	40,558

	Balance at December 31, 201 6		Level 1		Level 2		Level 3
Real estate	$	117,930	$	-	$	-	$	117,930