Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Land	$ 2,412,629	$ 2,119,364
Land improvements and buildings	8,995,041	8,480,597
Rental homes and improvements	622,397	637,603
Furniture, fixtures and equipment	529,549	447,039
Investment property	12,559,616	11,684,603
Accumulated depreciation	(2,165,564)	(1,968,812)
Real Estate Investment Property, Net, Total	10,394,052	9,715,791
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	119,612	92,641
Marketable securities	153,049	124,726
Inventory of manufactured homes	43,686	46,643
Notes and other receivables, net	262,333	221,650
Collateralized receivables, net	295,663	305,611
Other Assets	324,278	270,691
Total Assets	12,040,990	11,206,586
LIABILITIES
Secured Debt	3,457,734	3,489,983
Unsecured Debt	853,441	1,267,093
Line of credit and other		1,197,181
Distributions payable	98,429	86,988
Advanced reservation deposits and rent	290,913	187,730
Accounts Payable	214,200	148,435
Other Liabilities	184,846	134,650
Total Liabilities	5,099,563	5,314,879
Temporary Equity	285,603	264,379
STOCKHOLDERS' EQUITY
Common Stock, Value, Issued	1,159	1,076
Additional paid-in capital	8,163,095	7,087,658
Accumulated other comprehensive income	5,197	3,178
Distributions in excess of accumulated earnings	(1,614,243)	(1,566,636)
Total Sun Communities, Inc. stockholders' equity	6,555,208	5,525,276
Noncontrolling interests:
Common and preferred OP units	82,865	85,968
Consolidated VIEs (fully attributable to consolidated VIEs; see Note 7)	17,751	16,084
Total noncontrolling interests	100,616	102,052
Total Stockholders' Equity	6,655,824	5,627,328
Total Liabilities, Temporary Equity and Stockholders' Equity	12,040,990	11,206,586
Goodwill	448,317	428,833
Intangible Assets, Net (Including Goodwill)	295,663	305,611
Variable Interest Entity, Primary Beneficiary [Member]
ASSETS
Real Estate Investment Property, Net, Total	508,055	438,918
Other Assets	32,817	24,554
Total Assets	540,872	463,472
LIABILITIES
Secured Debt	74,571	47,706
Unsecured Debt	35,249	35,249
Preferred OP units - mandatorily redeemable	35,249	35,249
Other Liabilities	44,944	21,957
Total Liabilities	154,764	104,912
Noncontrolling interests:
Consolidated VIEs (fully attributable to consolidated VIEs; see Note 7)	17,751	16,084
Preferred Equity, Mandatorily Redeemable [Member]
LIABILITIES
Preferred OP units - mandatorily redeemable	35,249	35,249
Aspen Series B3 Preferred Operating Partnership Units [Member]
LIABILITIES
Secured Debt	34,663
Preferred OP units - mandatorily redeemable		34,663
Estimate of Fair Value Measurement | Fair Value, Recurring
LIABILITIES
Secured Debt	3,511,703	3,588,901
Unsecured Debt	$ 863,383	$ 1,267,093