CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Real estate:
Buildings and improvements	$ 12,368,124	$ 12,025,271
Development costs and construction in progress	739,451	877,423
Land	2,706,909	2,603,964
Accumulated depreciation and amortization	(2,975,337)	(2,839,229)
Net real estate	12,839,147	12,667,429
Net investment in direct financing leases	0	44,706
Loans receivable, net of reserves of $1,944 and $1,813	409,753	415,811
Investments in and advances to unconsolidated joint ventures	403,159	403,634
Accounts receivable, net of allowance of $2,068 and $1,870	54,106	48,691
Cash and cash equivalents	89,066	158,287
Restricted cash	52,103	53,454
Intangible assets, net	497,104	519,760
Assets held for sale and discontinued operations, net	33,812	37,190
Right-of-use asset, net	232,457	233,942
Other assets, net	676,543	674,615
Total assets	15,287,250	15,257,519
LIABILITIES AND EQUITY
Bank line of credit and commercial paper	1,330,813	1,165,975
Senior unsecured notes	4,654,056	4,651,933
Mortgage debt	350,713	352,081
Intangible liabilities, net	175,355	177,232
Liabilities related to assets held for sale and discontinued operations, net	14,318	15,056
Lease liability	203,988	204,547
Accounts payable, accrued liabilities, and other liabilities	695,373	755,384
Deferred revenue	817,022	789,207
Total liabilities	8,241,638	8,111,415
Commitments and contingencies (Note 10)
Redeemable noncontrolling interests	97,890	87,344
Common stock, $1.00 par value: 750,000,000 shares authorized; 539,523,537 and 539,096,879 shares issued and outstanding	539,524	539,097
Additional paid-in capital	10,084,687	10,100,294
Cumulative dividends in excess of earnings	(4,212,941)	(4,120,774)
Accumulated other comprehensive income (loss)	(3,047)	(3,147)
Total stockholders’ equity	6,408,223	6,515,470
Joint venture partners	338,443	342,234
Non-managing member unitholders	201,056	201,056
Total noncontrolling interests	539,499	543,290
Total equity	6,947,722	7,058,760
Total liabilities and equity	$ 15,287,250	$ 15,257,519