Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Real estate assets, net	$ 7,893,802	$ 7,696,864
Real estate assets - operating lease right-of-use assets	252,172	264,643
Investments in unconsolidated real estate entities	397,444	338,054
Investments in debt securities and notes receivable	593,810	43,586
Cash and cash equivalents	109,124	65,746
Restricted cash	18,885	4,987
Other assets, net	130,611	118,497
Total assets	9,395,848	8,532,377
Liabilities, Noncontrolling Interests and Equity:
Notes payable, net	4,797,303	4,318,973
Exchangeable senior notes, net	0	569,513
Revolving lines of credit	949,000	158,000
Operating lease liabilities	263,485	274,783
Cash distributions in unconsolidated real estate ventures	47,126	45,264
Accounts payable and accrued expenses	130,012	111,382
Other liabilities	272,798	132,768
Total liabilities	6,459,724	5,610,683
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, 131,357,961 and 129,534,407 shares issued and outstanding at December 31, 2020 and 2019, respectively	1,314	1,295
Additional paid-in capital	3,000,458	2,868,681
Accumulated other comprehensive loss	(99,093)	(28,966)
Accumulated deficit	(354,900)	(301,049)
Total Extra Space Storage Inc. stockholders' equity	2,547,779	2,539,961
Noncontrolling interest represented by Preferred Operating Partnership units, net	172,052	175,948
Noncontrolling interests in Operating Partnership, net and other noncontrolling interests	216,293	205,785
Total noncontrolling interests and equity	2,936,124	2,921,694
Total liabilities, noncontrolling interests and equity	$ 9,395,848	$ 8,532,377