Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Assets:
Real estate, net of accumulated depreciation and amortization of $2,552,669 and $2,500,053, respectively		$ 9,179,554	$ 9,209,053
Real estate under development		230,600	220,200
Cash and cash equivalents		451,796	123,947
Accounts and notes receivable, net		220,215	218,689
Operating lease right-of-use assets, net		97,790	99,125
Other assets		361,193	354,365
Total assets	[1]	11,305,134	10,997,867
Liabilities:
Notes payable, net		5,303,656	4,831,759
Mortgages and construction loan payable, net		404,879	484,008
Dividends payable		126,473	126,274
Operating lease liabilities		91,546	92,711
Other liabilities		488,168	516,265
Total liabilities	[2]	6,414,722	6,051,017
Redeemable noncontrolling interests		17,943	17,943
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $1.00 par value, authorized 7,054,000 shares; Issued and outstanding (in series) 19,580 shares; Aggregate liquidation preference $489,500		20	20
Common stock, $.01 par value, authorized 750,000,000 shares; Issued and outstanding 432,525,409 and 431,814,951 shares, respectively		4,325	4,318
Paid-in capital		5,747,277	5,765,233
Cumulative distributions in excess of net income		(942,031)	(904,679)
Total stockholders' equity		4,809,591	4,864,892
Noncontrolling interests		62,878	64,015
Total equity		4,872,469	4,928,907
Total liabilities and equity		11,305,134	10,997,867
Real Estate Under Development [Member]
Assets:
Real estate under development		230,602	220,170
Investments in and Advances to Real Estate Joint Ventures [Member]
Assets:
Investments in and advances to real estate joint ventures		585,591	578,118
Other Real Estate Investments [Member]
Assets:
Other real estate investments		$ 178,393	$ 194,400

[1] Includes restricted assets of consolidated variable interest entities ("VIEs") at March 31, 2020 and December 31, 2019 of $104,243 and $245,489, respectively. See Footnote 10 of the Notes to Condensed Consolidated Financial Statements.

[2] Includes non-recourse liabilities of consolidated VIEs at March 31, 2020 and December 31, 2019 of $65,544 and $153,436, respectively. See Footnote 10 of the Notes to Condensed Consolidated Financial Statements.