Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets:
Real estate assets, net	$ 3,862,679	$ 3,636,544
Investments in unconsolidated real estate ventures	89,326	88,125
Cash and cash equivalents	47,015	126,723
Restricted cash	20,026	21,451
Receivables from related parties and affiliated real estate joint ventures	8,966	7,542
Other assets, net	95,479	96,755
Total assets	4,123,491	3,977,140
Liabilities, Noncontrolling Interests and Equity:
Notes payable	1,664,872	1,588,596
Premium on notes payable	4,053	4,948
Exchangeable senior notes	250,000	250,000
Discount on exchangeable senior notes	(15,637)	(16,487)
Notes payable to trusts	119,590	119,590
Lines of credit	87,000
Accounts payable and accrued expenses	52,886	60,601
Other liabilities	37,543	37,997
Total liabilities	2,200,307	2,045,245
Commitments and contingencies
Extra Space Storage Inc. stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value, 300,000,000 shares authorized, 115,869,909 and 115,755,527 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	1,158	1,157
Paid-in capital	1,976,597	1,973,159
Accumulated other comprehensive income	7,528	10,156
Accumulated deficit	(235,009)	(226,002)
Total Extra Space Storage Inc. stockholders' equity	1,750,274	1,758,470
Noncontrolling interest represented by Preferred Operating Partnership units, net of $100,000 note receivable	80,843	80,947
Noncontrolling interests in Operating Partnership	91,042	91,453
Other noncontrolling interests	1,025	1,025
Total noncontrolling interests and equity	1,923,184	1,931,895
Total liabilities, noncontrolling interests and equity	$ 4,123,491	$ 3,977,140