National Storage Affiliates Trust Annual report pursuant to Section 13 and 15(d)

SELF STORAGE PROPERTY ACQUISITIONS AND DISPOSITIONS - Acquisitions (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023 USD ($) property	Sep. 30, 2023 USD ($) property	Jun. 30, 2023 USD ($) property annex	Mar. 31, 2023 USD ($) property	Dec. 31, 2022 USD ($) property	Sep. 30, 2022 USD ($) property	Jun. 30, 2022 USD ($) property	Mar. 31, 2022 USD ($) property	Dec. 31, 2023 USD ($) property	Dec. 31, 2022 USD ($) property
Asset Acquisitions During Period
Number of Properties \| property	2	2	0	16	2	23	8	12	20	45
Cash and Acquisition Costs	$ 16,972	$ 13,666	$ 8,167	$ 9,920	$ 7,622	$ 313,784	$ 99,954	$ 76,027	$ 48,725	$ 497,387
Value of OP equity	8,062	16,370	5,577	150,531	32,141	6,244	13,938	16,576	180,540	68,899
Other Liabilities/ (Other Assets)	(12)	78	34	85	156	1,761	641	332	185	2,890
Total	$ 25,022	$ 30,114	$ 13,778	$ 160,536	$ 39,919	$ 321,789	$ 114,533	$ 92,935	$ 229,450	$ 569,176
Number annexes acquired \| annex			2