Current report filing

Document and Entity Information Document

v3.21.2
Document and Entity Information Document
Nov. 09, 2021
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Nov. 09, 2021
Entity Registrant Name National Storage Affiliates Trust
Entity Central Index Key 0001618563
Amendment Flag false
Entity Incorporation, State or Country Code MD
Entity File Number 001-37351
Entity Tax Identification Number 46-5053858
Entity Address, Address Line One 8400 East Prentice Avenue, 9th Floor
Entity Address, City or Town Greenwood Village
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80111
City Area Code 720
Local Phone Number 630-2600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Shares of Beneficial Interest, $0.01 par value per share [Member]  
Entity Information [Line Items]  
Security Exchange Name NYSE
New York Stock Exchange [Member] | Common Shares of Beneficial Interest, $0.01 par value per share [Member]  
Entity Information [Line Items]  
Title of 12(b) Security Common Shares of Beneficial Interest, $0.01 par value per share
Trading Symbol NSA
New York Stock Exchange [Member] | Series A Cumulative Redeemable Preferred Shares of Beneficial Interest, par value $0.01 per share [Member]  
Entity Information [Line Items]  
Title of 12(b) Security Series A Cumulative Redeemable Preferred Shares of Beneficial Interest, par value $0.01 per share
Trading Symbol NSA Pr A