Quarterly report pursuant to Section 13 or 15(d)

Organization - Additional Information (Detail)

v3.22.1
Organization - Additional Information (Detail)
3 Months Ended
Mar. 31, 2022
Property
State
$ / shares
shares
Dec. 31, 2021
shares
Organization [Line Items]    
Number of self-storage properties owned and managed 1,105  
Number of states in which self-storage properties owned and managed | State 36  
Number of properties managed under joint ventures 117  
Number of properties managed with no ownership 261  
Fixed priority return on Preferred unitholders, Percentage 4.50%  
Noncontrolling limited partnership unit redemption value one common share or cash  
Revenue [Member]    
Organization [Line Items]    
Number of self-storage properties owned and managed 1,105  
Geographic Concentration Risk [Member] | Texas [Member] | Revenue [Member]    
Organization [Line Items]    
Concentration risk, percentage 16.00%  
Geographic Concentration Risk [Member] | Florida [Member] | Revenue [Member]    
Organization [Line Items]    
Concentration risk, percentage 15.00%  
Life Storage LP [Member]    
Organization [Line Items]    
Units of redeemable noncontrolling interest in operating partnership | shares 960,208 960,708
Redeemable Preferred Stock [Member]    
Organization [Line Items]    
Preferred Stock, Par or Stated Value Per Share | $ / shares $ 25.00  
Redeemable Preferred Stock [Member] | Life Storage LP [Member]    
Organization [Line Items]    
Units of redeemable noncontrolling interest in operating partnership | shares 3,590,603 3,590,603
Life Storage LP [Member]    
Organization [Line Items]    
Ownership interest 98.10%