Definitive revised proxy soliciting materials


12 Months Ended
Dec. 31, 2022
Document Information [Line Items]  
Document Type DEFR14A
Amendment Flag true
Amendment Description This Amendment No. 1 is being filed for the sole purpose of including Inline eXtensible Business Reporting Language, or Inline XBRL, data tagging, which was inadvertently omitted from the Original Definitive Proxy Statement due to a processing error.
Entity Information [Line Items]  
Entity Registrant Name National Storage Affiliates Trust
Entity Central Index Key 0001618563