Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
Real estate assets, net	$ 8,113,074	$ 7,893,802
Real estate assets - operating lease right-of-use assets	233,929	252,172
Investments in unconsolidated real estate entities	361,228	397,444
Investments in debt securities and notes receivable	568,781	593,810
Cash and cash equivalents	56,006	109,124
Restricted cash	3,743	18,885
Other assets, net	126,331	130,611
Total assets	9,463,092	9,395,848
Liabilities, Noncontrolling Interests and Equity:
Notes payable, net	5,109,882	4,797,303
Revolving lines of credit	261,000	949,000
Operating lease liabilities	238,411	263,485
Cash distributions in unconsolidated real estate ventures	62,704	47,126
Accounts payable and accrued expenses	150,091	130,012
Other liabilities	280,049	272,798
Total liabilities	6,102,137	6,459,724
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	0	0
Common stock, $0.01 par value, 500,000,000 shares authorized, 133,791,109 and 131,357,961 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	1,337	1,314
Additional paid-in capital	3,288,852	3,000,458
Accumulated other comprehensive loss	(71,830)	(99,093)
Accumulated deficit	(250,271)	(354,900)
Total Extra Space Storage Inc. stockholders' equity	2,968,088	2,547,779
Noncontrolling interest represented by Preferred Operating Partnership units, net	172,902	172,052
Noncontrolling interests in Operating Partnership, net and other noncontrolling interests	219,965	216,293
Total noncontrolling interests and equity	3,360,955	2,936,124
Total liabilities, noncontrolling interests and equity	$ 9,463,092	$ 9,395,848