Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets:
Real estate assets, net	$ 8,272,671	$ 7,893,802
Real estate assets - operating lease right-of-use assets	229,184	252,172
Investments in unconsolidated real estate entities	373,765	397,444
Investments in debt securities and notes receivable	606,115	593,810
Cash and cash equivalents	65,565	109,124
Restricted cash	15,717	18,885
Other assets, net	145,342	130,611
Total assets	9,708,359	9,395,848
Liabilities, Noncontrolling Interests and Equity:
Notes payable, net	5,409,828	4,797,303
Revolving lines of credit	174,000	949,000
Operating lease liabilities	234,118	263,485
Cash distributions in unconsolidated real estate ventures	63,196	47,126
Accounts payable and accrued expenses	164,674	130,012
Other liabilities	279,668	272,798
Total liabilities	6,325,484	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, 133,819,163 and 131,357,961 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	1,338	1,314
Additional paid-in capital	3,283,848	3,000,458
Accumulated other comprehensive loss	(64,155)	(99,093)
Accumulated deficit	(229,269)	(354,900)
Total Extra Space Storage Inc. stockholders' equity	2,991,762	2,547,779
Noncontrolling interest represented by Preferred Operating Partnership units, net	170,248	172,052
Noncontrolling interests in Operating Partnership, net and other noncontrolling interests	220,865	216,293
Total noncontrolling interests and equity	3,382,875	2,936,124
Total liabilities, noncontrolling interests and equity	$ 9,708,359	$ 9,395,848