Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Rental income	$ 241,261	$ 182,937	$ 674,008	$ 496,316
Total operating revenues	272,954	208,256	763,489	567,406
Expenses
Property operations and maintenance	47,906	36,410	132,733	103,519
Tenant reinsurance	9,033	6,228	22,361	16,434
Real estate taxes	25,702	21,397	75,581	61,794
General and administrative	18,493	16,141	52,995	45,407
Depreciation and amortization	48,711	37,158	143,187	106,287
Total operating expenses	149,845	117,334	426,857	333,441
Gain on sale of non-real estate assets	2,841	0	4,806	0
Income from operations	125,950	90,922	341,438	233,965
Other income (expenses)
Interest expense	(28,010)	(21,350)	(77,755)	(62,470)
Interest and dividend income	5	2	24	787
Equity in income of joint ventures	2,799	1,477	6,832	4,126
Net income	100,744	71,051	270,539	176,408
Net income attributable to noncontrolling interests in consolidated subsidiary	(9)	0	(9)	0
Net income attributable to common shareholders/unitholders	$ 98,505	$ 70,274	$ 264,344	$ 175,172
Earnings per common share/unit attributable to common shareholders/unitholders - basic	$ 1.16	$ 0.89	$ 3.14	$ 2.27
Earnings per common share/unit attributable to common shareholders/unitholders - diluted	$ 1.16	$ 0.89	$ 3.14	$ 2.27
Common shares/units used in basic earnings per share/unit calculation	84,472,979	78,961,434	84,129,261	77,135,429
Common shares/units used in diluted earnings per share/unit calculation	85,396,539	79,179,816	84,554,165	77,303,339
Dividends/distributions declared per common share/unit	$ 1.08	$ 0.74	$ 3.08	$ 2.22
Other operating income [Member]
Revenues
Other operating income	$ 12,651	$ 9,834	$ 34,914	$ 29,280
Tenant reinsurance [Member]
Revenues
Other operating income	19,042	15,485	54,567	41,810
Redeemable Preferred Stock [Member]
Other income (expenses)
Net income attributable to noncontrolling interest in the Operating Partnership	(999)	(476)	(3,002)	(476)
Redeemable Common Stock [Member]
Other income (expenses)
Net income attributable to noncontrolling interest in the Operating Partnership	(1,231)	(301)	(3,184)	(760)
Life Storage LP [Member]
Revenues
Rental income	241,261	182,937	674,008	496,316
Total operating revenues	272,954	208,256	763,489	567,406
Expenses
Property operations and maintenance	47,906	36,410	132,733	103,519
Tenant reinsurance	9,033	6,228	22,361	16,434
Real estate taxes	25,702	21,397	75,581	61,794
General and administrative	18,493	16,141	52,995	45,407
Depreciation and amortization	48,711	37,158	143,187	106,287
Total operating expenses	149,845	117,334	426,857	333,441
Gain on sale of non-real estate assets	2,841	0	4,806	0
Income from operations	125,950	90,922	341,438	233,965
Other income (expenses)
Interest expense	(28,010)	(21,350)	(77,755)	(62,470)
Interest and dividend income	5	2	24	787
Equity in income of joint ventures	2,799	1,477	6,832	4,126
Net income	100,744	71,051	270,539	176,408
Net income attributable to noncontrolling interests in consolidated subsidiary	(9)	0	(9)	0
Net income attributable to common shareholders/unitholders	$ 98,505	$ 70,274	$ 264,344	$ 175,172
Earnings per common share/unit attributable to common shareholders/unitholders - basic	$ 1.16	$ 0.89	$ 3.14	$ 2.27
Earnings per common share/unit attributable to common shareholders/unitholders - diluted	$ 1.16	$ 0.89	$ 3.14	$ 2.27
Common shares/units used in basic earnings per share/unit calculation	84,472,979	78,961,434	84,129,261	77,135,429
Common shares/units used in diluted earnings per share/unit calculation	85,396,539	79,179,816	84,554,165	77,303,339
Dividends/distributions declared per common share/unit	$ 1.08	$ 0.74	$ 3.08	$ 2.22
Net income attributable to general partner	$ 1,007	$ 711	$ 2,705	$ 1,764
Net income attributable to limited partners	97,498	69,563	261,639	173,408
Life Storage LP [Member] | Other operating income [Member]
Revenues
Other operating income	12,651	9,834	34,914	29,280
Life Storage LP [Member] | Tenant reinsurance [Member]
Revenues
Other operating income	19,042	15,485	54,567	41,810
Life Storage LP [Member] | Redeemable Preferred Stock [Member]
Other income (expenses)
Net income attributable to noncontrolling interest in the Operating Partnership	(999)	(476)	(3,002)	(476)
Life Storage LP [Member] | Redeemable Common Stock [Member]
Other income (expenses)
Net income attributable to noncontrolling interest in the Operating Partnership	$ (1,231)	$ (301)	$ (3,184)	$ (760)