Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities:
Net income (loss)	$ 622,431	$ 623,046
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	586,821	309,914
Amortization of deferred financing costs	13,419	9,716
Non-cash interest expense related to amortization of discount on Life Storage unsecured senior notes	32,563	8,228
Compensation expense related to share-based awards	14,417	19,433
Accrual of interest income added to principal of debt securities and notes receivable	(23,455)	(30,127)
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and sale of a joint venture interest	(13,730)	0
Impairment of Life Storage trade name	51,763	0
Loss on real estate assets held for sale	63,620	0
Distributions from unconsolidated real estate ventures	21,839	11,484
Changes in operating assets and liabilities:
Other assets	45,737	(31,675)
Accounts payable and accrued expenses	45,145	134,310
Other liabilities	18,581	(16,370)
Net cash provided by operating activities	1,479,151	1,037,959
Cash flows from investing activities:
Acquisition of real estate assets and improvements	(361,126)	(197,333)
Life Storage Merger, net of cash acquired	0	(1,182,411)
Development and redevelopment of real estate assets	(100,507)	(66,533)
Proceeds from sale of real estate assets and investments in real estate ventures	4,415	2,132
Investment in unconsolidated real estate entities	(7,175)	(179,258)
Return of investment in unconsolidated real estate ventures	12,999	0
Issuance and purchase of notes receivable	(739,702)	(210,712)
Principal payments received from notes receivable	153,971	73,514
Proceeds from sale of notes receivable	175,335	134,064
Purchase of equipment and fixtures	(15,713)	(9,515)
Net cash used in investing activities	(877,503)	(1,636,052)
Cash flows from financing activities:
Proceeds from unsecured term loans and senior notes and revolving lines of credit	5,542,362	5,194,665
Principal payments on unsecured term loans and senior notes and revolving lines of credit	(6,062,896)	(4,617,755)
Proceeds from issuance of public bonds, net	1,000,000	950,000
Deferred financing costs	(12,633)	(51,359)
Proceeds from share issuances	365	0
Offering costs associated with shelf registration	(522)	0
Contributions from noncontrolling interests	15	0
Dividends paid on common stock	(1,031,044)	(704,069)
Distributions to noncontrolling interests	(48,053)	(43,003)
Net cash (used in) provided by financing activities	(612,406)	723,479
Net (decrease) increase in cash, cash equivalents, and restricted cash	(10,758)	125,386
Cash, cash equivalents, and restricted cash, beginning of the period	105,083	97,735
Cash, cash equivalents, and restricted cash, end of the period	94,325	223,121
Supplemental schedule of cash flow information
Interest paid	381,434	207,569
Income taxes paid	30,635	20,222
Redemption of Operating Partnership units held by noncontrolling interests for common stock
Noncontrolling interests in Operating Partnership	58,375	116,336
Common stock and paid-in capital	(58,375)	(11,336)
Noncontrolling interests in Operating Partnership Note Receivable Payoff	0	(100,000)
OP Unit Redemption - Cash Proceeds	0	(5,000)
Accrued Construction Costs And Capital Expenditures [Abstract]
Acquisition of real estate assets	9,094	6,835
Accounts payable and accrued expenses	(9,094)	(6,835)
Series A Preferred Stock
Cash flows from financing activities:
Redemption of Preferred A Units for cash	$ 0	$ (5,000)