CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 385,091	$ 186,391	$ 285,293
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	179,523	164,260	150,440
Gains on sales of properties	(367,274)	(139,039)	(250,889)
Debt satisfaction (gains) losses, net	13,894	(21,452)	4,517
Impairment charges	5,541	14,460	5,329
Straight-line rents	(12,275)	(13,602)	(14,264)
Amortization of right of use assets	3,726	3,763	3,645
Other non-cash expense, net	6,734	6,210	6,060
Equity in (earnings) losses of non-consolidated entities	190	169	(2,890)
Distributions of accumulated earnings from non-consolidated entities	0	0	2,571
Change in accounts payable and other liabilities	7,996	2,859	(270)
Change in rent receivable and prepaid rent, net	1,058	80	3,770
Change in accrued interest payable	2,138	1,866	3,368
Other adjustments, net	(5,996)	(4,130)	(4,496)
Net cash provided by operating activities	220,346	201,835	192,184
Cash flows from investing activities:
Acquisition of real estate, including intangible assets	(758,371)	(611,754)	(662,010)
Investment in real estate under construction	(288,519)	(53,971)	(11,332)
Capital expenditures	(15,207)	(17,250)	(17,829)
Net proceeds from sale of properties	728,360	192,560	504,118
Investment in loans receivable	(1,497)	0	0
Principal payments received on loans receivable	8	0	0
Investments in non-consolidated entities, net	(4,533)	(7,528)	(8,018)
Distributions from non-consolidated entities in excess of accumulated earnings	8,347	8,055	17,119
Payments of deferred leasing costs	(7,297)	(4,841)	(8,196)
Change in real estate deposits, net	947	379	(817)
Net cash used in investing activities	(337,762)	(494,350)	(186,965)
Cash flows from financing activities:
Dividends to common and preferred shareholders	(128,334)	(118,384)	(122,843)
Principal amortization payments	(13,552)	(19,441)	(24,259)
Principal payments on debt, excluding normal amortization	(14,581)	0	(89,242)
Proceeds of mortgages and notes payable	11,610	0	0
Revolving credit facility borrowings	555,000	170,000	110,000
Revolving credit facility payments	(555,000)	(170,000)	(110,000)
Proceeds from issuance of senior notes	399,032	396,932	0
Repurchase of senior notes	(188,756)	(112,312)	0
Payment for early extinguishment of debt	(12,664)	(11,094)	(3,505)
Deferred financing costs	(3,977)	(3,803)	(5,456)
Cash distributions to noncontrolling interests	(1,662)	(1,905)	(2,763)
Cash contributions from noncontrolling interests	21,411	1,285	867
Repurchase of common shares	0	(11,042)	(3,598)
Issuance of common shares, net of costs and repurchases to settle tax obligations	60,575	222,390	197,643
Net cash provided by (used in) financing activities	129,102	342,626	(53,156)
Change in cash, cash equivalents and restricted cash	11,686	50,111	(47,937)
Less restricted cash classified as held for sale	(80)	0	0
Cash, cash equivalents and restricted cash, at beginning of year	179,421	129,310	177,247
Cash, cash equivalents and restricted cash, at end of year	$ 191,027	$ 179,421	$ 129,310