Cover
Cover | Oct. 02, 2020 | Feb. 18, 2020 |
Cover [Abstract] | ||
Document Type | 8-K | |
Amendment Flag | false | |
Document Period End Date | Oct. 2, 2020 | |
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, SuiteĀ 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 |