Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 409,840	$ 370,867	$ 488,035
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	394,714	352,282	319,697
Amortization of deferred financing costs and debt premiums	13,096	8,252	5,799
Amortization of above and below market lease intangibles, net	(22,701)	(29,130)	(20,995)
Stock-based compensation, net of capitalization	23,504	20,075	16,521
Equity in income of investments in real estate partnerships	(50,294)	(50,541)	(59,824)
Gain on sale of real estate, net of tax	(34,162)	(661)	(109,005)
Provision for impairment of real estate	14,304
Loss (gain) on early extinguishment of debt	180	(99)
Distribution of earnings from investments in real estate partnerships	69,156	66,531	61,416
Deferred compensation expense (income)	5,256	4,782	(6,128)
Realized and unrealized (gain) loss on investments	(5,930)	(5,571)	7,040
Changes in assets and liabilities:
Tenant and other receivables	(24,219)	(13,904)	(35,274)
Deferred leasing costs	(11,703)	(11,156)	(10,801)
Other assets	1,818	3,028	1,292
Accounts payable and other liabilities	4,253	5,152	(9,088)
Tenants’ security, escrow deposits and prepaid rent	3,086	(316)	7,130
Net cash provided by operating activities	790,198	719,591	655,815
Cash flows from investing activities:
Acquisition of operating real estate, net of cash acquired of $3,061 in 2022	(45,405)	(45,386)	(169,639)
Acquisition of UBP, net of cash acquired of $14,143		(82,389)
Real estate development and capital improvements	(343,368)	(232,855)	(195,418)
Proceeds from sale of real estate	108,615	11,167	143,133
Proceeds from property insurance casualty claims	5,286
Issuance of notes receivable	(32,651)	(4,000)
Collection of notes receivable	3,115	4,000	1,823
Investments in real estate partnerships	(41,345)	(13,119)	(36,266)
Return of capital from investments in real estate partnerships	13,034	11,308	48,473
Dividends on investment securities	453	1,283	1,113
Acquisition of investment securities	(101,044)	(7,990)	(21,112)
Proceeds from sale of investment securities	106,666	16,003	21,785
Net cash used in investing activities	(326,644)	(341,978)	(206,108)
Cash flows from financing activities:
Net proceeds from common stock issuance		(33)	61,284
Repurchase of common shares in conjunction with equity award plans	(19,540)	(7,662)	(6,447)
Common shares repurchased through share repurchase program	(200,066)	(20,006)	(75,419)
Proceeds from sale of treasury stock	210	103	64
Contributions from noncontrolling interests	6,789	10,238
Distributions to and redemptions of non-controlling interests	(12,185)	(7,813)	(7,245)
Distributions to exchangeable operating partnership unit holders	(2,952)	(2,368)	(1,867)
Redemption of EOP units		(9,163)
Dividends paid to common shareholders	(490,365)	(453,065)	(428,276)
Dividends paid to preferred shareholders	(13,650)	(3,413)
Repayment of fixed rate unsecured notes	(250,000)
Proceeds from issuance of fixed rate unsecured notes, net of debt discount	722,860
Proceeds from unsecured credit facilities	722,419	557,000	95,000
Repayment of unsecured credit facilities	(809,419)	(405,000)	(95,000)
Proceeds from notes payable	12,000	59,500
Repayment of notes payable	(131,261)	(61,592)	(6,745)
Scheduled principal payments	(11,209)	(11,235)	(11,219)
Payment of financing costs	(16,655)	(526)	(88)
Net cash used in financing activities	(493,024)	(355,035)	(475,958)
Net change in cash and cash equivalents and restricted cash	(29,470)	22,578	(26,251)
Cash and cash equivalents and restricted cash at beginning of the year	91,354	68,776	95,027
Cash and cash equivalents and restricted cash at end of the year	61,884	91,354	68,776
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $6,627, $5,695, and $4,166 in 2024, 2023, and 2022, respectively)	161,356	147,176	141,359
Cash paid for income taxes, net of refunds	7,724	933	570
Supplemental disclosure of non-cash transactions:
Common and Preferred units, and exchangeable operating partnership dividends declared but not paid	133,114	126,683	111,709
Previously held equity investments in real estate assets acquired			17,179
Mortgage loans assumed by Company with the acquisition of real estate		98	22,779
Right of use assets obtained in exchange for new operating lease liabilities	1,271	36,577
Sale of leased asset in exchange for net investment in sales-type lease	2,846	8,510
EOP units issued for acquisition of real estate		31,253
Real estate received in lieu of rental revenue	1,853
Change in accrued capital expenditures	14,036	8,877	4,888
Stock-based compensation capitalized	1,941	954	735
Contributions to investments in real estate partnerships	18,459	920
Contributions from limited partners in consolidated partnerships	7,890		5,436
Change in fair value of securities	32	338	1,658
UBP Acquisition [Member]
Supplemental disclosure of non-cash transactions:
Notes payable assumed in acquisition, at fair value		284,706
Noncontrolling interest assumed in acquisition, at fair value		64,492
Common Stock [Member] | UBP Acquisition [Member]
Supplemental disclosure of non-cash transactions:
Stock exchanged		818,530
Preferred Stock [Member] | UBP Acquisition [Member]
Supplemental disclosure of non-cash transactions:
Stock exchanged		225,000
Partnership Interest [Member]
Cash flows from operating activities:
Net income	409,840	370,867	488,035
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	394,714	352,282	319,697
Amortization of deferred financing costs and debt premiums	13,096	8,252	5,799
Amortization of above and below market lease intangibles, net	(22,701)	(29,130)	(20,995)
Stock-based compensation, net of capitalization	23,504	20,075	16,521
Equity in income of investments in real estate partnerships	(50,294)	(50,541)	(59,824)
Gain on sale of real estate, net of tax	(34,162)	(661)	(109,005)
Provision for impairment of real estate	14,304
Loss (gain) on early extinguishment of debt	180	(99)
Distribution of earnings from investments in real estate partnerships	69,156	66,531	61,416
Deferred compensation expense (income)	5,256	4,782	(6,128)
Realized and unrealized (gain) loss on investments	(5,930)	(5,571)	7,040
Changes in assets and liabilities:
Tenant and other receivables	(24,219)	(13,904)	(35,274)
Deferred leasing costs	(11,703)	(11,156)	(10,801)
Other assets	1,818	3,028	1,292
Accounts payable and other liabilities	4,253	5,152	(9,088)
Tenants’ security, escrow deposits and prepaid rent	3,086	(316)	7,130
Net cash provided by operating activities	790,198	719,591	655,815
Cash flows from investing activities:
Acquisition of operating real estate, net of cash acquired of $3,061 in 2022	(45,405)	(45,386)	(169,639)
Real estate development and capital improvements	(343,368)	(232,855)	(195,418)
Proceeds from sale of real estate	108,615	11,167	143,133
Proceeds from property insurance casualty claims	5,286
Issuance of notes receivable	(32,651)	(4,000)
Collection of notes receivable	3,115	4,000	1,823
Investments in real estate partnerships	(41,345)	(13,119)	(36,266)
Return of capital from investments in real estate partnerships	13,034	11,308	48,473
Dividends on investment securities	453	1,283	1,113
Acquisition of investment securities	(101,044)	(7,990)	(21,112)
Proceeds from sale of investment securities	106,666	16,003	21,785
Net cash used in investing activities	(326,644)	(341,978)	(206,108)
Cash flows from financing activities:
Net proceeds from common stock issuance	0	(33)	61,284
Repurchase of common shares in conjunction with equity award plans	(19,540)	(7,662)	(6,447)
Common shares repurchased through share repurchase program	(200,066)	(20,006)	(75,419)
Proceeds from sale of treasury stock	210	103	64
Contributions from noncontrolling interests	6,789	10,238
Distributions to and redemptions of non-controlling interests	(12,185)	(7,813)	(7,245)
Distributions to partners	(493,317)	(455,433)	(430,143)
Redemption of EOP units	0	(9,163)
Dividends paid to preferred shareholders	(13,650)	(3,413)
Repayment of fixed rate unsecured notes	(250,000)
Proceeds from issuance of fixed rate unsecured notes, net of debt discount	722,860
Proceeds from unsecured credit facilities	722,419	557,000	95,000
Repayment of unsecured credit facilities	(809,419)	(405,000)	(95,000)
Proceeds from notes payable	12,000	59,500
Repayment of notes payable	(131,261)	(61,592)	(6,745)
Scheduled principal payments	(11,209)	(11,235)	(11,219)
Payment of financing costs	(16,655)	(526)	(88)
Net cash used in financing activities	(493,024)	(355,035)	(475,958)
Net change in cash and cash equivalents and restricted cash	(29,470)	22,578	(26,251)
Cash and cash equivalents and restricted cash at beginning of the year	91,354	68,776	95,027
Cash and cash equivalents and restricted cash at end of the year	61,884	91,354	68,776
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $6,627, $5,695, and $4,166 in 2024, 2023, and 2022, respectively)	161,356	147,176	141,359
Cash paid for income taxes, net of refunds	7,724	933	570
Supplemental disclosure of non-cash transactions:
Common and Preferred units, and exchangeable operating partnership dividends declared but not paid	133,114	126,683	111,709
Previously held equity investments in real estate assets acquired			17,179
Mortgage loans assumed by Company with the acquisition of real estate	0	98	22,779
Right of use assets obtained in exchange for new operating lease liabilities	1,271	36,577
Sale of leased asset in exchange for net investment in sales-type lease	2,846	8,510
Notes payable assumed in acquisition, at fair value	0	284,706
Noncontrolling interest assumed in acquisition, at fair value	0	64,492
EOP units issued for acquisition of real estate	0	31,253
Real estate received in lieu of rental revenue	1,853
Change in accrued capital expenditures	14,036	8,877	4,888
Stock-based compensation capitalized	1,941	954	735
Contributions to investments in real estate partnerships	18,459	920
Contributions from limited partners in consolidated partnerships	7,890		5,436
Change in fair value of securities	32	338	$ 1,658
Partnership Interest [Member] | UBP Acquisition [Member]
Cash flows from investing activities:
Acquisition of UBP, net of cash acquired of $14,143		(82,389)
Partnership Interest [Member] | Common Stock [Member] | UBP Acquisition [Member]
Supplemental disclosure of non-cash transactions:
Stock exchanged	0	818,530
Partnership Interest [Member] | Preferred Stock [Member] | UBP Acquisition [Member]
Supplemental disclosure of non-cash transactions:
Stock exchanged	$ 0	$ 225,000