v3.19.3
Cover
Oct. 29, 2019
Cover page.  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 29, 2019
Entity Registrant Name EXTRA SPACE STORAGE INC.
Entity Central Index Key 0001289490
Entity Incorporation, State or Country Code MD
Entity File Number 001-32269
Entity Tax Identification Number 20-1076777
Entity Address, Address Line One 2795 East Cottonwood Parkway, Suite 300
Entity Address, City or Town Salt Lake City
Entity Address, State or Province UT
Entity Address, Postal Zip Code 84121
City Area Code 801
Local Phone Number 365-4600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol EXR
Security Exchange Name NYSE