Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Cash flows from operating activities:
Net income	$ 252,537	$ 220,202
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	215,225	196,309
Amortization of deferred financing costs and debt premiums	8,033	6,922
Amortization of above and below market lease intangibles, net	(9,964)	(11,414)
Stock-based compensation, net of capitalization	10,620	9,864
Equity in income of investments in real estate partnerships	(38,540)	(28,254)
(Gain) loss on sale of real estate, net of tax	(7,462)	193
Provision for impairment of real estate, net of tax		1,262
Distribution of earnings from investments in real estate partnerships	34,870	34,502
Deferred compensation expense (income)	2,670	(253)
Realized and unrealized gain on investments	(3,323)	(87)
Changes in assets and liabilities:
Tenant and other receivables	(17,258)	(1,670)
Deferred leasing costs	(10,178)	(8,802)
Other assets	(14,434)	(15,123)
Accounts payable and other liabilities	13,994	464
Tenants' security, escrow deposits and prepaid rent	(2,760)	964
Net cash provided by operating activities	434,030	405,079
Cash flows from investing activities:
Acquisition of operating real estate, net of cash acquired of $787 in 2025	(32,766)	(83,261)
Real estate development and capital improvements	(212,003)	(204,657)
Proceeds from sale of real estate	13,882	7,165
Proceeds from property insurance casualty claims	3,301
Issuance of notes receivable	(1,500)
Collection of notes receivable	1,069	180
Investments in real estate partnerships	(35,142)	(6,217)
Return of capital from investments in real estate partnerships	40,914
Dividends on investment securities	1,646	1,081
Purchase of investment securities	(6,109)	(96,226)
Proceeds from sale of investment securities	7,551	9,242
Net cash used in investing activities	(219,157)	(372,693)
Cash flows from financing activities:
Tax withholding on stock-based compensation	(9,108)	(6,783)
Redemption of exchangeable operating partnership units		(2,046)
Proceeds from sale of treasury stock	123	462
Contributions from noncontrolling interests	2,311	8,416
Distributions to and redemptions of noncontrolling interests	(7,411)	(6,130)
Distributions to exchangeable operating partnership unit holders	(5,796)	(1,546)
Dividends paid to common shareholders	(275,936)	(255,455)
Dividends paid to preferred shareholders	(6,826)	(6,826)
Repayment of fixed rate unsecured notes	(100,000)
Proceeds from issuance of fixed rate unsecured notes, net of debt discount	447,192	397,116
Proceeds from unsecured credit facilities	285,000	395,000
Repayment of unsecured credit facilities	(375,000)	(430,000)
Proceeds from notes payable		10,000
Repayment of notes payable	(88,000)	(32,787)
Scheduled principal payments	(6,412)	(5,060)
Payment of financing costs	(4,057)	(3,812)
Net cash (used in) provided by financing activities	(143,920)	60,549
Net increase in cash and cash equivalents and restricted cash	70,953	92,935
Cash and cash equivalents and restricted cash at beginning of the period	120,661	61,884
Cash and cash equivalents and restricted cash at end of the period	191,614	154,819
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $5,061 and $4,534 in 2026 and 2025, respectively)	99,024	90,174
Supplemental disclosure of non-cash transactions:
Common and Preferred stock, and exchangeable operating partnership dividends declared but not paid	143,423	131,017
Acquisition of operating real estate / previously unconsolidated real estate investments:
Change in accrued capital expenditures	8,553	15,244
Contributions to investments in real estate partnerships	14,318	518
Operating Real Estate
Acquisition of operating real estate / previously unconsolidated real estate investments:
Acquired lease intangible assets	3,214	9,725
Notes payable assumed in acquisition, at fair value		40,060
Intangible liabilities, Accounts payable and other liabilities	3,126	18,945
Unconsolidated Real Estate Investments
Acquisition of operating real estate / previously unconsolidated real estate investments:
Acquired lease intangible assets	1,329	4,308
Notes payable assumed in acquisition, at fair value		16,749
Partnership Interest [Member]
Cash flows from operating activities:
Net income	252,537	220,202
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	215,225	196,309
Amortization of deferred financing costs and debt premiums	8,033	6,922
Amortization of above and below market lease intangibles, net	(9,964)	(11,414)
Stock-based compensation, net of capitalization	10,620	9,864
Equity in income of investments in real estate partnerships	(38,540)	(28,254)
(Gain) loss on sale of real estate, net of tax	(7,462)	193
Provision for impairment of real estate, net of tax		1,262
Distribution of earnings from investments in real estate partnerships	34,870	34,502
Deferred compensation expense (income)	2,670	(253)
Realized and unrealized gain on investments	(3,323)	(87)
Changes in assets and liabilities:
Tenant and other receivables	(17,258)	(1,670)
Deferred leasing costs	(10,178)	(8,802)
Other assets	(14,434)	(15,123)
Accounts payable and other liabilities	13,994	464
Tenants' security, escrow deposits and prepaid rent	(2,760)	964
Net cash provided by operating activities	434,030	405,079
Cash flows from investing activities:
Acquisition of operating real estate, net of cash acquired of $787 in 2025	(32,766)	(83,261)
Real estate development and capital improvements	(212,003)	(204,657)
Proceeds from sale of real estate	13,882	7,165
Proceeds from property insurance casualty claims	3,301
Issuance of notes receivable	(1,500)
Collection of notes receivable	1,069	180
Investments in real estate partnerships	(35,142)	(6,217)
Return of capital from investments in real estate partnerships	40,914
Dividends on investment securities	1,646	1,081
Purchase of investment securities	(6,109)	(96,226)
Proceeds from sale of investment securities	7,551	9,242
Net cash used in investing activities	(219,157)	(372,693)
Cash flows from financing activities:
Tax withholding on stock-based compensation	(9,108)	(6,783)
Redemption of exchangeable operating partnership units		(2,046)
Proceeds from sale of treasury stock	123	462
Contributions from noncontrolling interests	2,311	8,416
Distributions to and redemptions of noncontrolling interests	(7,411)	(6,130)
Distributions to partners	(281,732)	(257,001)
Dividends paid to preferred shareholders	(6,826)	(6,826)
Repayment of fixed rate unsecured notes	(100,000)
Proceeds from issuance of fixed rate unsecured notes, net of debt discount	447,192	397,116
Proceeds from unsecured credit facilities	285,000	395,000
Repayment of unsecured credit facilities	(375,000)	(430,000)
Proceeds from notes payable		10,000
Repayment of notes payable	(88,000)	(32,787)
Scheduled principal payments	(6,412)	(5,060)
Payment of financing costs	(4,057)	(3,812)
Net cash (used in) provided by financing activities	(143,920)	60,549
Net increase in cash and cash equivalents and restricted cash	70,953	92,935
Cash and cash equivalents and restricted cash at beginning of the period	120,661	61,884
Cash and cash equivalents and restricted cash at end of the period	191,614	154,819
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $5,061 and $4,534 in 2026 and 2025, respectively)	99,024	90,174
Supplemental disclosure of non-cash transactions:
Common and Preferred units, and exchangeable operating partnership units distributions declared but not paid	143,423	131,017
Acquisition of operating real estate / previously unconsolidated real estate investments:
Change in accrued capital expenditures	8,553	15,244
Contributions to investments in real estate partnerships	14,318	518
Partnership Interest [Member] | Operating Real Estate
Acquisition of operating real estate / previously unconsolidated real estate investments:
Acquired lease intangible assets	3,214	9,725
Notes payable assumed in acquisition, at fair value		40,060
Intangible liabilities, Accounts payable and other liabilities	3,126	18,945
Partnership Interest [Member] | Unconsolidated Real Estate Investments
Acquisition of operating real estate / previously unconsolidated real estate investments:
Acquired lease intangible assets	$ 1,329	4,308
Notes payable assumed in acquisition, at fair value		$ 16,749