Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES:
Net income (loss)	$ 98,986	$ (89,725)	$ (67,261)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Share-based compensation expense	41,272	51,551	66,051
Depreciation and amortization expense, including amortization of deferred financing costs	217,841	240,454	225,597
Deferred rent	(23,602)	(21,964)	(20,084)
Loss from unconsolidated real estate ventures, net	17,429	2,070	20,336
Amortization of market lease intangibles, net	(1,127)	(1,189)	(442)
Amortization of lease incentives	7,734	7,973	6,603
Loss on the extinguishment of debt	3,073		62
Impairment loss		25,144	10,232
Gain on the sale of real estate, net	(161,894)	(11,290)	(59,477)
Loss on operating lease and other receivables	2,160	2,595	25,805
Income from investments, net	(14,488)	(3,620)
Return on capital from unconsolidated real estate ventures	11,407	15,912	4,302
Other non-cash items	(5,517)	(922)	4,326
Changes in operating assets and liabilities:
Tenant and other receivables	(13,154)	8,812	(9,231)
Other assets, net	(10,737)	(12,780)	(11,075)
Accounts payable and accrued expenses	(1,282)	8,700	591
Other liabilities, net	9,936	(4,099)	(27,314)
Net cash provided by operating activities	178,037	217,622	169,021
INVESTING ACTIVITIES:
Development costs, construction in progress and real estate additions	(326,741)	(173,177)	(307,497)
Acquisition of real estate	(65,302)	(208,342)	(45,688)
Deposits for real estate and other acquisitions			(25,424)
Proceeds from the sale of real estate	928,908	14,370	154,493
Proceeds from the sale of investments	19,030
Distributions of capital from unconsolidated real estate ventures	59,717	40,188	71,065
Investments in unconsolidated real estate ventures and other investments	(91,591)	(41,780)	(14,639)
Net cash provided by (used in) investing activities	524,021	(368,741)	(167,690)
FINANCING ACTIVITIES:
Borrowings under mortgage loans	179,744	190,000	580,105
Borrowings under revolving credit facility	100,000	300,000	500,000
Borrowings under unsecured term loans	150,000		100,000
Repayments of mortgage loans	(270,676)	(5,611)	(104,083)
Repayments of revolving credit facility	(400,000)		(700,000)
Debt issuance and modification costs	(5,137)	(6,610)	(14,856)
Redemption of partner's noncontrolling interest	(9,531)
Finance lease payments		(19,970)	(3,531)
Proceeds from common shares issued pursuant to ESPP	1,458	1,594	1,715
Common shares repurchased	(361,042)	(157,686)	(104,774)
Dividends paid to common shareholders	(107,688)	(118,115)	(120,011)
Distributions to redeemable noncontrolling interests	(16,409)	(17,804)	(15,030)
Distributions to noncontrolling interests	(182)	(46)	(46)
Contributions from noncontrolling interests	9,383	24,126
Net cash provided by (used in) financing activities	(730,080)	189,878	119,489
Net (decrease) increase in cash and cash equivalents, and restricted cash	(28,022)	38,759	120,820
Cash and cash equivalents, and restricted cash, beginning of period	302,095	263,336	142,516
Cash and cash equivalents, and restricted cash, end of period	274,073	302,095	263,336
SUPPLEMENTAL DISCLOSURE OF CASH FLOW AND NON-CASH INFORMATION:
Cash paid for interest (net of capitalized interest of $10,888, 6,734 and $13,189 in 2022, 2021 and 2020)	71,861	61,928	56,961
Accrued capital expenditures included in accounts payable and accrued expenses	73,612	43,290	43,188
Write-off of fully depreciated assets	19,794	61,123	30,798
Cash paid (received) for income taxes	1,205	815	(1,187)
Deconsolidation of real estate asset		26,476
Accrued dividends to common shareholders	25,653	28,665	29,650
Accrued distributions to redeemable noncontrolling interests	3,968	3,938	4,425
Conversion of OP Units to common shares	16,704	29,634	47,517
Derecognition of operating lease right-of-use assets		(1,596)	(13,151)
Derecognition of liabilities related to operating lease right-of-use assets		(1,587)	(13,151)
(Derecognition) recognition of finance lease right-of-use assets	(179,668)	139,507	42,354
(Derecognition) recognition of liabilities related to finance lease right-of-use assets	(163,586)	141,574	40,684
Cash paid for amounts included in the measurement of lease liabilities for operating leases	$ 1,906	$ 2,295	5,201
Deferred purchase price related to acquisition			$ 19,479