Sun Communities (SUI) 10-Q 23 Jul 20 2020 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jul. 16, 2020
Cover [Abstract]
Entity Current Reporting Status		Yes
Entity Incorporation, State or Country Code	MD
Title of 12(b) Security		Common Stock, $0.01 par value
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	1-12616
Trading Symbol		SUI
Entity Registrant Name	SUN COMMUNITIES INC
Entity Filer Category		Large Accelerated Filer
Entity Common Stock, Shares Outstanding			98,272,394
Entity Emerging Growth Company		false
Entity Small Business		false
Security Exchange Name		NYSE
Entity Tax Identification Number	38-2730780
Entity Address, Address Line One		27777 Franklin Rd,
Entity Address, Address Line Two		Suite 200,
Entity Address, City or Town		Southfield,
Entity Address, State or Province		MI
Entity Address, Postal Zip Code		48034
Entity Interactive Data Current		Yes
Entity Shell Company		false
City Area Code		248
Local Phone Number		208-2500
Entity Central Index Key		0000912593
Document Fiscal Year Focus		2020
Document Fiscal Period Focus		Q2
Current Fiscal Year End Date		--12-31
Amendment Flag		false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Land	$ 1,433,272	$ 1,414,279
Land improvements and buildings	6,826,741	6,595,272
Rental homes and improvements	652,177	627,175
Furniture, fixtures and equipment	312,139	282,874
Investment property	9,224,329	8,919,600
Accumulated depreciation	(1,826,810)	(1,686,980)
Real Estate Investment Property, Net, Total	7,397,519	7,232,620
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	389,214	34,830
Marketable securities	100,564	94,727
Inventory of manufactured homes	58,744	62,061
Notes and other receivables, net	180,391	157,926
Other Assets	222,227	219,896
Total Assets	8,348,659	7,802,060
LIABILITIES
Secured Debt	3,205,507	3,180,592
Lines of credit	115,352	183,898
Distributions payable	79,549	71,704
Customer Advances and Deposits	169,931	133,420
Accounts Payable	124,324	127,289
Other Liabilities	80,733	81,289
Total Liabilities	3,845,308	3,848,104
Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount	24,863	27,091
STOCKHOLDERS' EQUITY
Common Stock, Value, Issued	983	932
Additional paid-in capital	5,847,598	5,213,264
Accumulated other comprehensive loss	(4,475)	(1,331)
Distributions in excess of accumulated earnings	(1,496,542)	(1,393,141)
Total Sun Communities, Inc. stockholders' equity	4,347,564	3,819,724
Noncontrolling interests:
Common and preferred OP units	61,555	47,686
Consolidated VIEs	10,250	8,542
Total noncontrolling interests	71,805	56,228
Total Stockholders' Equity	4,419,369	3,875,952
Total Liabilities, Temporary Equity and Stockholders' Equity	8,348,659	7,802,060
Variable Interest Entity, Primary Beneficiary [Member]
ASSETS
Real Estate Investment Property, Net, Total	357,778	344,300
Other Assets	27,814	23,894
Total Assets	385,592	368,194
LIABILITIES
Secured Debt	46,464	46,993
Preferred OP units - mandatorily redeemable	35,249	35,249
Other Liabilities	26,524	13,631
Total Liabilities	108,237	95,873
Noncontrolling interests:
Consolidated VIEs	10,250	8,542
Series D Preferred OP Units
LIABILITIES
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount	50,171	50,913
Series F Preferred OP Units
LIABILITIES
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount	8,948	0
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	$ 34,663

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investment property, net	$ 7,397,519	$ 7,232,620
Other assets	222,227	219,896
Secured debt	3,205,507	3,180,592
Other liabilities	$ 80,733	$ 81,289
Common Stock, Par Value	$ 0.01	$ 0.01
Common Stock, Shares Authorized	180,000	180,000
Common Stock, Shares Issued	98,274,000	93,180,000
Common Stock, Shares Outstanding	98,274,000	93,180,000

Consolidated Statements Of Oper

Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
REVENUES
Income from real property	$ 231,484	$ 223,644	$ 469,269	$ 438,727
Revenue from home sales	38,530	47,242	79,117	86,860
Rental home revenue	14,968	14,412	30,440	28,383
Ancillary revenue	12,375	19,720	22,570	29,898
Interest income	2,635	4,919	4,985	9,719
Brokerage commissions and other revenues, net	3,274	2,508	7,187	6,188
Total Revenues	303,266	312,445	613,568	599,775
Expenses
Real estate taxes	17,723	15,726	34,899	31,056
Property operating and maintenance	65,204	65,888	129,261	123,797
Cost of home sales	29,181	34,435	59,213	63,712
Rental home operating and maintenance	4,685	5,177	10,179	10,009
Ancillary expenses	8,226	12,480	15,708	19,581
Home selling expenses	2,864	3,626	6,856	6,950
General and administrative expenses	26,733	23,697	52,250	45,584
Catastrophic weather-related charges, net	(566)	179	40	961
Depreciation and amortization	87,265	76,153	170,954	152,709
Loss on extinguishment of debt (see Note 8)	1,930	70	5,209	723
Interest expense	31,428	33,661	63,844	67,675
Interest on mandatorily redeemable preferred OP units / equity	1,042	1,181	2,083	2,275
Total Expenses	275,715	272,273	550,496	525,032
Income Before Other Items	27,551	40,172	63,072	74,743
Gain / (loss) on remeasurement of marketable securities (see Note 14)	24,519	3,620	(4,128)	3,887
Gain / (loss) on foreign currency translation	10,374	1,116	(7,105)	3,081
Other expense, net	(552)	(95)	(854)	(162)
Gain / (loss) on remeasurement of notes receivable (see Note 4)	246	0	(1,866)	0
Current tax expense (see Note 12)	(119)	(272)	(569)	(486)
Gain / (loss) on remeasurement of investment in nonconsolidated affiliates (see Note 6)	1,132	0	(1,059)	0
Deferred tax benefit (see Note 12)	112	96	242	313
Net Income	63,355	45,116	47,877	82,243
Less: Preferred return to preferred OP units / equity	1,584	1,718	3,154	3,041
Less: Income attributable to noncontrolling interests	2,861	2,585	1,899	3,626
Net Income Attributable to Sun Communities, Inc.	58,910	40,813	42,824	75,576
Less: Preferred stock distribution	0	428	0	860
Net Income Attributable to Sun Communities, Inc. Common Stockholders	$ 58,910	$ 40,385	$ 42,824	$ 74,716
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic	95,859	87,130	94,134	86,325
Weighted average common shares outstanding - diluted	96,165	87,564	94,525	86,770
Earnings per share:
Basic earnings per share (see Note 13)	$ 0.61	$ 0.46	$ 0.45	$ 0.86
Diluted earnings per share (see Note 13)	$ 0.61	$ 0.46	$ 0.45	$ 0.86
Distributions from Affiliate	$ 92	$ 479	$ 144	$ 867

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 63,355	$ 45,116	$ 47,877	$ 82,243
Foreign currency translation gain / (loss) adjustment	(3,872)	(1,913)	3,428	(3,488)
Total Comprehensive Income	67,227	43,203	44,449	78,755
Less: Comprehensive Income attributable to noncontrolling interests	(2,883)	(2,494)	(1,615)	(3,458)
Comprehensive Income attributable to Sun Communities, Inc.	$ 64,344	$ 40,709	$ 42,834	$ 75,297

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
OPERATING ACTIVITIES:
Net Cash Provided By Operating Activities	$ 302,027	$ 259,844
INVESTING ACTIVITIES:
Investment in properties	(268,708)	(262,944)
Acquisitions of properties, net of cash acquired	(78,869)	(308,165)
Proceeds from dispositions of assets and depreciated homes, net	24,459	28,774
Issuance of notes and other receivables	(25,044)	0
Repayments of notes and other receivables	1,719	2,307
Repayments of notes and other receivables	(23,743)	(31,869)
Distributions from nonconsolidated affiliates	2,070	1,367
Net Cash Used For Investing Activities	(368,116)	(570,530)
FINANCING ACTIVITIES:
Issuance of common stock, OP units, and preferred OP units, net	621,415	443,420
Borrowings on lines of credit	1,217,289	2,345,659
Payments on lines of credit	(1,286,462)	(2,397,580)
Proceeds from issuance of other debt	230,000	265,000
Payments on other debt	(201,598)	(223,559)
Prepayment penalty on collateralized term loans	(6,226)	0
Distributions to stockholders, OP unit holders, and preferred OP unit holders	(150,422)	(133,989)
Payments for deferred financing costs	(3,331)	(3,875)
Net Cash Provided By Financing Activities	420,665	294,019
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(192)	443
Net change in cash, cash equivalents and restricted cash	354,384	(16,224)
Cash, cash equivalents and restricted cash, beginning of period	34,830	62,262
Cash, Cash Equivalents and Restricted Cash, End of Period	389,214	46,038
SUPPLEMENTAL INFORMATION:
Interest Paid, Excluding Capitalized Interest, Operating Activities	65,822	66,947
Cash paid for interest on mandatorily redeemable debt	2,083	2,275
Cash paid for income taxes	441	703
Noncash investing and financing activities
Reduction in secured borrowing balance	0	9,432
Change in distributions declared and outstanding	7,781	6,401
Conversion of common and preferred OP units	577	527
Asset held for sale	5,770	0
Noncash Or Part Noncash Acquisition, Noncash Financial Or Equity Instrument Consideration, Escrow	0	1,395
Series D Preferred Stock [Member]
Noncash investing and financing activities
Stock Issued During Period, Value, New Issues, Series A-4 Preferred OP Units	0	51,930
Series A Preferred Stock [Member]
FINANCING ACTIVITIES:
Proceeds from (Payments for) Other Financing Activities	0	1,618
Noncash investing and financing activities
Conversion Of Series A Four Preferred Stock	0	337
Series B-3 Preferred OP Units [Member]
FINANCING ACTIVITIES:
Redemption of Series A-4 preferred stock and OP units	0	(2,675)
Series E Preferred OP Units [Domain]
Noncash investing and financing activities
Stock Issued During Period, Value, New Issues, Series A-4 Preferred OP Units	9,000	0
Common Stock And OP Units
Noncash investing and financing activities
Stock Issued During Period, Value, New Issues, Series A-4 Preferred OP Units	10,114	0
Series F Preferred OP Units
Noncash investing and financing activities
Stock Issued During Period, Value, New Issues, Series A-4 Preferred OP Units	$ 9,000	$ 0

Consolidated Statements Of Ca_2

Consolidated Statements Of Cash Flows (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Statement of Cash Flows [Abstract]
Interest Costs Capitalized	$ 4,561	$ 3,283

Consolidated Statement Of Stock

Consolidated Statement Of Stockholders' Equity - USD ($) $ in Thousands	Total	Temporary Equity	Common Stock	Additional Paid-in Capital	Distributions in Excess of Accumulated Earnings	Accumulated Other Comprehensive Loss	Non-controlling Interests	Total Stockholders’ Equity	Total Equity	Common OP UnitsTemporary Equity	Common OP UnitsCommon Stock	Common OP UnitsAdditional Paid-in Capital	Common OP UnitsNon-controlling Interests	Common OP UnitsTotal Stockholders’ Equity	Common OP UnitsTotal Equity
Beginning Balance at Dec. 31, 2018		$ 63,592
Increase (Decrease) in Temporary Equity [Roll Forward]
Equity Interests		256
Issuance of Series D OP units		51,930
Net income (loss)		178
Distributions		(528)
Ending Balance at Mar. 31, 2019		115,428
Beginning Balance at Dec. 31, 2018			$ 864	$ 4,398,949	$ (1,288,486)	$ (4,504)	$ 60,499	$ 3,167,322	$ 3,230,914
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and common OP units, net			1	(4,322)				(4,321)	(4,321)
Conversion of OP units				(280)			280
Equity interests					65		191	256
Share-based compensation - amortization and forfeitures	$ 3,793			3,719	74				3,793
Change in carrying value of temporary equity									(51,930)
Foreign currency translation	1,575					1,498	77		1,575
Net income (loss)					36,086		863	36,949	37,127
Distributions				15	(65,214)		(2,954)	(68,153)	(68,681)
Ending Balance at Mar. 31, 2019			865	4,398,641	(1,317,605)	(3,006)	58,014	3,136,909	3,252,337
Beginning Balance at Dec. 31, 2018		63,592
Ending Balance at Jun. 30, 2019		114,553
Beginning Balance at Dec. 31, 2018			864	4,398,949	(1,288,486)	(4,504)	60,499	3,167,322	3,230,914
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in carrying value of temporary equity	(3,488)
Asset held for sale	0
Net income (loss)	75,576
Ending Balance at Jun. 30, 2019			907	4,851,323	(1,343,792)	(1,184)	58,089	3,565,343	3,679,896
Beginning Balance at Mar. 31, 2019		115,428
Increase (Decrease) in Temporary Equity [Roll Forward]
Equity Interests		117
Conversion of Series A-4 preferred stock		(337)
Net income (loss)		15
Distributions		(558)
Ending Balance at Jun. 30, 2019		114,553
Beginning Balance at Mar. 31, 2019			865	4,398,641	(1,317,605)	(3,006)	58,014	3,136,909	3,252,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and common OP units, net			37	447,704				447,741	447,741
Conversion of OP units				(337)				(337)		$ 112	$ (5)	$ (242)	$ 135	$ (112)	$ 0
Equity interests					308		(191)	117
Share-based compensation - amortization and forfeitures	4,498			4,414	84				4,498
Change in carrying value of temporary equity	(1,913)
Foreign currency translation	1,913					1,822	91		1,913
Net income (loss)	40,813				42,531		2,570	45,101	45,116
Distributions				(15)	(68,494)		(2,642)	(71,151)	(71,709)
Ending Balance at Jun. 30, 2019			907	4,851,323	(1,343,792)	(1,184)	58,089	3,565,343	3,679,896
Beginning Balance at Dec. 31, 2019		78,004
Increase (Decrease) in Temporary Equity [Roll Forward]
Equity Interests		98
Net income (loss)		(1,195)
Distributions		(457)
Ending Balance at Mar. 31, 2020		76,450
Beginning Balance at Dec. 31, 2019	3,875,952		932	5,213,264	(1,393,141)	(1,331)	56,228	3,875,952	3,953,956
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and common OP units, net			1	(7,141)				(7,140)	(7,140)
Conversion of OP units												(446)	446
Equity interests					85			85	(13)
Share-based compensation - amortization and forfeitures				4,928	93			5,021	5,021
Change in carrying value of temporary equity				(181)			(8,819)	(9,000)	(9,000)
Foreign currency translation						(6,994)	(306)	(7,300)	(7,300)
Remeasurement of notes receivable and equity method investment (see Note 17)					1,953			1,953	1,953
Net income (loss)					(14,514)		231	(14,283)	(15,478)
Distributions					(73,730)		(2,918)	(76,648)	(77,105)
Ending Balance at Mar. 31, 2020			933	5,211,678	(1,479,424)	(8,325)	61,608	3,786,470	3,862,920
Beginning Balance at Dec. 31, 2019		78,004
Ending Balance at Jun. 30, 2020		83,982
Beginning Balance at Dec. 31, 2019	3,875,952		932	5,213,264	(1,393,141)	(1,331)	56,228	3,875,952	3,953,956
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in carrying value of temporary equity	3,428
Asset held for sale	5,770
Net income (loss)	42,824
Ending Balance at Jun. 30, 2020	4,419,369		983	5,847,598	(1,496,542)	(4,475)	71,805	4,419,369	4,503,351
Beginning Balance at Mar. 31, 2020		76,450
Increase (Decrease) in Temporary Equity [Roll Forward]
Equity Interests		(641)
Net income (loss)		(300)
Distributions		(492)
Ending Balance at Jun. 30, 2020		83,982
Beginning Balance at Mar. 31, 2020			933	5,211,678	(1,479,424)	(8,325)	61,608	3,786,470	3,862,920
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock and common OP units, net			49	628,506			10,114	638,669	638,669
Conversion of OP units											$ (1)	$ (130)	$ 131
Equity interests					67			67	708
Issuance of Series F preferred OP units		$ 8,965			0		0	0	8,965
Share-based compensation - amortization and forfeitures				7,284	92			7,376	7,376
Change in carrying value of temporary equity	(3,872)
Foreign currency translation						3,850	22	3,872	3,872
Net income (loss)	58,910				60,492		3,163	63,655	63,355
Distributions					(77,635)		(2,971)	(80,606)	(81,098)
Ending Balance at Jun. 30, 2020	$ 4,419,369		$ 983	$ 5,847,598	$ (1,496,542)	$ (4,475)	$ 71,805	$ 4,419,369	$ 4,503,351

Equity and Temporary Equity Equ

Equity and Temporary Equity Equity and Temporary Equity, Dividends Payable Table (Details) - Common Stock $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)$ / shares
Dividends Payable [Line Items]
Dividends per common share | $ / shares	$ 0.79
Subsequent Event [Member]
Dividends Payable [Line Items]
Payments of dividends | $	$ 79,593

Equity and Temporary Equity E_2

Equity and Temporary Equity Equity and Temporary Equity, Schedule of Sale of Common Stock (Details) - USD ($) $ in Millions	12 Months Ended	15 Months Ended
	Dec. 31, 2019	Sep. 30, 2018
Aggregate Value of Shares to be Issued in Accordance to Sales Agreement	$ 450
Issuance of common stock and common OP units, net		$ 163.8

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Sun Communities, Inc., a Maryland corporation, and all wholly-owned or majority-owned and controlled subsidiaries, including Sun Communities Operating Limited Partnership (the “Operating Partnership”) and Sun Home Services, Inc. (“SHS”) are referred to herein as the “Company,” “us,” “we,” and “our.” We follow accounting standards set by the Financial Accounting Standards Board (“FASB”). FASB establishes accounting principles generally accepted in the United States of America (“GAAP”), which we follow to ensure that we consistently report our financial condition, results of operations, and cash flows. References to GAAP issued by the FASB in these footnotes are to the FASB Accounting Standards Codification (“ASC”). These unaudited Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information and in accordance with GAAP. We present interim disclosures and certain information and footnote disclosures as required by SEC rules and regulations. Accordingly, the unaudited Consolidated Financial Statements do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying unaudited Consolidated Financial Statements reflect, in the opinion of management, all adjustments, including adjustments of a normal and recurring nature, necessary for a fair presentation of the interim financial statements. All intercompany transactions have been eliminated in consolidation. Certain reclassifications have been made to prior period financial statements in order to conform to current period presentation. Estimates inherent in the current financial reporting process inevitably involve assumptions about future events. Since December 2019, a novel strain of coronavirus, referred to as the COVID-19 virus, has spread to countries in which we operate. COVID-19 has become a global pandemic. Commencing in March 2020, authorities in jurisdictions where our properties are located have issued restrictions on travel and the types of businesses that may continue to operate. Our property site count consists of 66 percent manufactured housing (“MH”) for residents and 34 percent recreational vehicle (“RV”) for guests. All of our RV resorts are now open, however government regulations may limit the amenities available at any given park. The extent and duration of the travel and business restrictions will have an effect on estimates used in the preparation of financial statements. This includes the net operating income (“NOI”) assumptions in our long-lived asset impairment testing, the ultimate collectability of rent payments from residents and guests due to the effects of COVID-19 on their financial position, and fair value measurement changes for financial assets that we have elected to measure at fair value. The results of operations for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These unaudited Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019 as filed with the SEC on February 20, 2020 (the “2019 Annual Report”). These statements have been prepared on a basis that is substantially consistent with the accounting principles applied in our 2019 Annual Report.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregation of Revenue The following tables details our revenue by major source (in thousands): Three Months Ended June 30, 2020 June 30, 2019 Real Property Operations Home Sales and Rentals Consolidated Real Property Operations Home Sales and Rentals Consolidated Revenues Income from real property $ 231,484 $ — $ 231,484 $ 223,644 $ — $ 223,644 Revenue from home sales — 38,530 38,530 — 47,242 47,242 Rental home revenue — 14,968 14,968 — 14,412 14,412 Ancillary revenue 12,375 — 12,375 19,720 — 19,720 Interest income 2,635 — 2,635 4,919 — 4,919 Brokerage commissions and other revenues, net 3,274 — 3,274 2,508 — 2,508 Total Revenues $ 249,768 $ 53,498 $ 303,266 $ 250,791 $ 61,654 $ 312,445 Six Months Ended June 30, 2020 June 30, 2019 Real Property Operations Home Sales and Rentals Consolidated Real Property Operations Home Sales and Rentals Consolidated Revenues Income from real property $ 469,269 $ — $ 469,269 $ 438,727 $ — $ 438,727 Revenue from home sales — 79,117 79,117 — 86,860 86,860 Rental home revenue — 30,440 30,440 — 28,383 28,383 Ancillary revenue 22,570 — 22,570 29,898 — 29,898 Interest income 4,985 — 4,985 9,719 — 9,719 Brokerage commissions and other revenues, net 7,187 — 7,187 6,188 — 6,188 Total Revenues $ 504,011 $ 109,557 $ 613,568 $ 484,532 $ 115,243 $ 599,775 Revenue Recognition Policies and Performance Obligations On January 1, 2018, we adopted FASB Accounting Standards Update (“ASU”) 2014-09 “ Revenue from Contracts with Customers ” and the other related ASUs and amendments to the codification (collectively “ASC 606”). The core principle of ASC 606 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. A five-step transactional analysis is required to determine how and when to recognize revenue. ASC 606 applies to all contracts with customers, except those that are within the scope of other topics in the FASB accounting standards codification. As a real estate owner and operator, the majority of our revenue is derived from site and home leases that are accounted for pursuant to ASC 842 “ Leases .” For transactions in the scope of ASC 606, we recognize revenue when control of goods or services transfers to the customer, in the amount that we expect to receive for the transfer of goods or provision of services. The adoption of ASC 606 did not result in any change to the timing and pattern of revenue recognition. Accordingly, retrospective application to prior periods or a cumulative catch-up adjustment was unnecessary. Income from real property - Residents in our communities lease the site on which their home is located, and either own or lease their home. Resident leases are generally for one-year or month-to-month terms and are renewable by mutual agreement between us and the resident, or in some cases, as provided by jurisdictional statute. Lease revenues for sites and homes fall under the scope of ASC 842, and are accounted for as operating leases with straight-line recognition. Income from real property includes income from site leases for annual MH residents, site leases for annual RV residents and site rentals to transient RV residents. Non-lease components of our site lease contracts, which are primarily provision of utility services, are accounted for with the site lease as a single lease under ASC 842. Additionally, we include collections of real estate taxes from residents within Income from real property. Revenue from home sales - Our taxable REIT subsidiary, SHS, sells manufactured homes to current and prospective residents in our communities. Prior to adoption of ASC 606, we recognized revenue for home sales pursuant to ASC 605 “ Revenue Recognition, ” as manufactured homes are tangible personal property that can be located on any land parcel. Manufactured homes are not permanent fixtures or improvements to the underlying real estate and were therefore not considered to be subject to the guidance in ASC 360-20 “ Real Estate Sales ” by us. In accordance with the core principle of ASC 606, we recognize revenue from home sales at the time of closing when control of the home transfers to the customer. After closing of the sale transaction, we have no remaining performance obligation. As of June 30, 2020, and December 31, 2019, we had $19.2 million and $20.9 million, respectively, of receivables from contracts with customers, which consists of home sales proceeds, and are presented as a component of Notes and other receivables, net on our Consolidated Balance Sheets. These receivables represent balances owed to us for previously completed performance obligations for sales of manufactured homes. Rental home revenue - is comprised of rental agreements whereby we lease homes to residents in our communities. We account for these revenues under ASC 842. Ancillary revenue - is primarily composed of proceeds from restaurant, golf, merchandise and other activities at our RV communities and is included in the scope of ASC 606. Revenues are recognized at point of sale when control of the good or service transfers to the customer and our performance obligation is satisfied. In addition, leasing of short-term vacation home rentals is included within Ancillary revenue and falls within the scope of ASC 842. Sales and other taxes that we collect concurrent with revenue-producing activities are excluded from the transaction price. Interest income - is earned primarily on our notes receivable, which include installment notes receivables on manufactured homes purchased by us from loan originators and notes receivables from real estate developers. Interest income on these receivables is accrued based on the unpaid principal balances of the underlying loans on a level yield basis over the life of the loans. Interest income is not in the scope of ASC 606. Refer to Note 4, “Notes and Other Receivables,” for additional information. Broker commissions and other revenues, net - is primarily comprised of brokerage commissions for sales of manufactured homes, where we act as agent and arrange for a third party to transfer a manufactured home to a customer within one of our communities. Brokerage commission revenues are recognized on a net basis at closing, when the transaction is completed and our performance obligations have been fulfilled.

Real Estate Acquisitions

Real Estate Acquisitions	3 Months Ended
	Mar. 31, 2020
Business Combinations [Abstract]
Real Estate Acquisitions	Real Estate Acquisitions and Dispositions 2020 Acquisitions In 2020, we acquired the following communities: Community Name Type Sites State Month Acquired Cape Cod (1) RV 230 MA January Jellystone Natural Bridge RV 299 VA February Forest Springs (2) MH 372 CA May Crown Villa RV 123 OR June Total 1,024 (1) In conjunction with the acquisition, we issued Series E preferred OP units. As of June 30, 2020, 90,000 Series E Preferred OP units were outstanding. (2) In conjunction with the acquisition, we issued Series F preferred OP units and common OP units. As of June 30, 2020, 90,000 Series F preferred OP units and 82,420 common OP units, specific to this acquisition, were outstanding. The following table summarizes the amounts of assets acquired net of liabilities assumed at the acquisition date and the consideration paid for the acquisitions completed for the six months ended June 30, 2020 (in thousands): At Acquisition Date Consideration Investment in property Inventory of manufactured homes In-place leases and other intangible assets Other assets (liabilities), net Total identifiable assets acquired net of liabilities assumed Cash and escrow Temporary and permanent equity Total consideration Cape Cod $ 13,350 $ — $ 150 $ (295) $ 13,205 $ 4,205 $ 9,000 $ 13,205 Jellystone Natural Bridge 11,364 — 80 (391) 11,053 11,053 — 11,053 Forest Springs 51,949 1,337 2,160 (107) 55,339 36,260 19,079 55,339 Crown Villa 16,792 — — (230) 16,562 16,562 — 16,562 Total $ 93,455 $ 1,337 $ 2,390 $ (1,023) $ 96,159 $ 68,080 $ 28,079 $ 96,159 As of June 30, 2020, we have incurred $2.0 million of additional capitalized transaction costs which have been allocated among the various categories above. The total amount of revenues and net income included in the Consolidated Statements of Operations for the three and six months ended June 30, 2020 related to the acquisitions completed in 2020 are set forth in the following table (in thousands): Three Months Ended Six Months Ended June 30, 2020 June 30, 2020 Total revenues $ 1,249 $ 1,341 Net income $ 320 $ 214 The following unaudited pro forma financial information presents the results of our operations for the three and six months ended June 30, 2020 and 2019, as if the properties acquired in 2020 had been acquired on January 1, 2019. The unaudited pro forma results reflect certain adjustments for items that are not expected to have a continuing impact, such as adjustments for transaction costs incurred, management fees, and purchase accounting. The information presented below has been prepared for comparative purposes only and does not purport to be indicative of either future results of operations or the results of operations that would have actually occurred had the acquisition been consummated on January 1, 2019 (in thousands, except per-share data): Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Total revenues $ 305,504 $ 315,851 $ 616,215 $ 603,987 Net income attributable to Sun Communities, Inc. common stockholders $ 59,268 $ 40,786 $ 43,269 $ 75,257 Net income per share attributable to Sun Communities, Inc. common stockholders - basic $ 0.63 $ 0.47 $ 0.46 $ 0.87 Net income per share attributable to Sun Communities, Inc. common stockholders - diluted $ 0.63 $ 0.47 $ 0.46 $ 0.87 Real Estate Held For Sale We periodically classify real estate assets as “held for sale.” An asset is classified as held for sale after an active program to sell an asset has commenced and when the sale is probable. Subsequent to the classification of assets as held for sale, no further depreciation expense is recorded. Within "Other Assets, net" on the Consolidated Balance Sheets is $5.7 million of real estate held for sale which is the carrying value of Countryside Village manufactured home community as of June 30, 2020. No depreciation expense was recognized during the quarter for this community. 2019 Acquisitions For the year ended December 31, 2019 we acquired the following communities: Community Name Type Sites Development Sites State Month Acquired Slickrock Campground RV 193 — UT December Pandion Ridge RV 142 351 AL November Jensen Portfolio (1) MH 5,230 466 Various October Glen Ellis RV 244 40 NH September Leisure Point Resort (2) MH / RV 502 — DE September Reunion Lake RV 202 69 LA July River Plantation RV 309 — TN May Massey’s Landing RV RV 291 — DE February Shelby Properties (3) MH 1,308 — MI February Buena Vista MH 400 — AZ February Country Village Estates (4) MH 518 — OR January Hid’n Pines RV RV 321 — ME January Hacienda del Rio MH (Age-Restricted) 730 — FL January Total 10,390 926 (1) Contains 31 communities located in CT, GA, MD, NH, NJ, NY, NC and SC. In conjunction with the acquisition, we issued 1,972,876 shares of common stock, net of fractional shares paid in cash. (2) Contains 201 MH sites and 301 RV sites. (3) Contains two MH communities. (4) In conjunction with the acquisition, we issued Series D preferred OP units. As of December 31, 2019, 488,958 Series D preferred OP units were outstanding. The following table summarizes the amounts of assets acquired net of liabilities assumed at the acquisition date and the consideration paid for the acquisitions completed in 2019 (in thousands): At Acquisition Date Consideration Investment in property Inventory of manufactured homes In-place leases and other intangible assets Other assets (liabilities), net Total identifiable assets acquired net of liabilities assumed Cash and escrow Debt assumed Temporary and permanent equity Total consideration Slickrock Campground $ 8,250 $ — $ — $ 8 $ 8,258 $ 8,258 $ — $ — $ 8,258 Pandion Ridge 19,070 — — (92) 18,978 18,978 — — 18,978 Jensen Portfolio 374,402 3,605 7,752 3,938 389,697 18,306 58,000 313,391 389,697 Glen Ellis 5,955 — — (79) 5,876 1,976 3,900 — 5,876 Leisure Point Resort 43,632 18 850 (678) 43,822 43,822 — — 43,822 Reunion Lake 23,493 — — (1,153) 22,340 22,340 — — 22,340 River Plantation 22,589 75 — — 22,664 22,664 — — 22,664 Massey's Landing 36,250 — 220 (446) 36,024 36,024 — — 36,024 Shelby Properties 85,969 2,011 6,520 (1,015) 93,485 93,485 — — 93,485 Buena Vista 20,221 439 1,590 (93) 22,157 22,157 — — 22,157 Country Village 62,784 — 2,020 31 64,835 12,905 — 51,930 64,835 Hid'n Pines 10,680 — 70 (233) 10,517 10,517 — — 10,517 Hacienda del Rio 111,971 15 3,280 (237) 115,029 115,029 — — 115,029 Total $ 825,266 $ 6,163 $ 22,302 $ (49) $ 853,682 $ 426,461 $ 61,900 $ 365,321 $ 853,682 Land for Expansion / Development During the year ended December 31, 2019, we acquired four land parcels which are located in New Braunfels, Texas; Petoskey, Michigan; Uhland, Texas and Hudson, Florida for total consideration of $7.7 million. Two of the land parcels are adjacent to existing communities. Ground Leases In August 2019, we acquired Chincoteague Island KOA RV Resort (“Chincoteague”), in Chincoteague Island, Virginia for total consideration of $19.5 million. The sellers of Chincoteague continue to operate the property. Refer to Note 16, “Leases,” for disclosures on accounting treatment. In April 2019, we acquired Strafford/Lake Winnipesaukee South KOA RV Resort ("Strafford") in Strafford, New Hampshire for total consideration of $2.7 million. The sellers of Strafford continue to operate the property. Refer to Note 16, “Leases,” for disclosures on accounting treatment.

Notes And Other Receivables

Notes And Other Receivables	6 Months Ended
	Jun. 30, 2020
Long-term Notes and Loans, by Type, Current and Noncurrent [Abstract]
Notes And Other Receivables	Notes and Other Receivables The following table sets forth certain information regarding notes and other receivables (in thousands): June 30, 2020 December 31, 2019 Installment notes receivable on manufactured homes, net $ 90,047 $ 95,580 Notes receivable from real estate developers $ 40,707 $ 18,960 Other receivables, net $ 49,637 $ 43,386 Total Notes and Other Receivables, net $ 180,391 $ 157,926 Installment Notes Receivable on Manufactured Homes Due to the adoption of ASU 2016-13, “ Financial Instruments - Credit Losses ” (Topic 326) Measurement of Credit Losses on Financial Instruments, effective January 1, 2020, installment notes receivable are measured at fair value pursuant to us electing the fair value option. The balances of installment notes receivable of $90.0 million (net of fair value adjustment of $0.9 million) and $95.6 million (net of allowance of $0.6 million) as of June 30, 2020 and December 31, 2019, respectively, are collateralized by manufactured homes. The notes represent financing to purchasers of manufactured homes primarily located in our communities and require monthly principal and interest payments. The notes had a net weighted average interest rate (net of servicing costs) and maturity of 7.9 percent and 15.4 years as of June 30, 2020, and 8.0 percent and 15.8 years as of December 31, 2019, respectively. Refer to Note 14, “Fair Value of Financial instruments,” and Note 17, “Recent Accounting Pronouncement,” for additional detail. The change in the aggregate balance of the installment notes receivable is as follows (in thousands): Six Months Ended Year Ended June 30, 2020 December 31, 2019 Beginning balance of gross installment notes receivable $ 96,225 $ 113,495 Financed sale of manufactured homes $ 1,036 $ 341 Principal payments and payoffs from our customers $ (4,058) $ (8,710) Principal reduction from repossessed homes $ (2,281) $ (8,901) Ending balance of gross installment notes receivable $ 90,922 $ 96,225 Beginning balance of allowance for losses on installment notes receivables $ (645) $ (697) Adjustment to allowance for losses $ — $ 52 Initial fair value option adjustment (see Note 17) $ 645 $ — Ending balance of allowance for losses on installment notes receivables $ — $ (645) Initial fair value option adjustment (see Note 17) $ 991 $ — Fair value adjustment $ (1,866) $ — Fair value adjustments on gross installment notes receivable $ (875) $ — Ending balance of installment notes receivable, net $ 90,047 $ 95,580 Notes Receivable from Real Estate Developers As of June 30, 2020 and December 31, 2019, the notes receivable balances of $40.7 million and $19.0 million, respectively are, primarily comprised of long term construction loans provided to real estate developers. The carrying values of the notes generally approximate their fair market values either due to the nature of the loan and/or the note being secured by underlying collateral and/or personal guarantees. The notes receivable from real estate developers have a net weighted average interest rate and maturity of 6.1 percent and 1.8 years as of June 30, 2020, and 7.0 percent and 1.3 years as of December 31, 2019, respectively. As of June 30, 2020, real estate developers collectively have $11.0 million of undrawn funds on their loans. Refer to Note 14, “Fair Value of Financial Instruments,” and Note 17, “Recent Accounting Pronouncements,” for additional detail. Other Receivables As of June 30, 2020, other receivables were comprised of amounts due from: residents for rent, utility charges, fees and other pass through charges of $8.5 million (net of allowance of $5.1 million), home sale proceeds of $19.2 million, insurance receivables of $7.9 million, and other receivables of $14.0 million. As of December 31, 2019, other receivables were comprised of amounts due from: residents for rent, utility charges, fees and other pass through charges of $7.8 million (net of allowance of $2.2 million), home sale proceeds of $20.9 million, insurance and other receivables of $9.9 million, and other receivables of $4.8 million.

Intangible Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets Disclosure [Text Block]	Intangible Assets Our intangible assets include in-place leases, franchise agreements and other intangible assets. These intangible assets are recorded in Other assets, net on the Consolidated Balance Sheets. In accordance with FASB ASC Topic 842, below market leases are now classified as a right of use asset. The gross carrying amounts, and accumulated amortization are as follows (in thousands): June 30, 2020 December 31, 2019 Intangible Asset Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization In-place leases 7 years $ 129,283 $ (81,579) $ 127,313 $ (74,548) Franchise agreements and other intangible assets 7 - 20 years 16,944 (3,169) 16,943 (2,760) Total $ 146,227 $ (84,748) $ 144,256 $ (77,308) Total amortization expense related to the intangible assets are as follows (in thousands): Three Months Ended Six Months Ended Intangible Asset Amortization Expense June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 In-place leases $ 3,580 $ 3,800 $ 7,031 $ 7,472 Franchise fees and other intangible assets 204 205 409 409 Total $ 3,784 $ 4,005 $ 7,440 $ 7,881 We anticipate amortization expense for our intangible assets to be as follows for the next five years (in thousands): Year Remainder 2020 2021 2022 2023 2024 Estimated expense $ 7,854 $ 15,472 $ 10,871 $ 7,496 $ 5,133

Investment In Affiliates

Investment In Affiliates	6 Months Ended
	Jun. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investment In Affiliates	Investments in joint ventures that are not consolidated, nor recorded at cost, are accounted for using the equity method of accounting as prescribed in FASB ASC Topic 323, “Investments - Equity Method and Joint Ventures.” Investments in nonconsolidated affiliates are recorded within Other assets, net on the Consolidated Balance Sheets. Equity income and loss are recorded in the Income / (loss) from nonconsolidated affiliates on the Consolidated Statements of Operations. RezPlot Systems LLC (“Rezplot”) At June 30, 2020 and December 31, 2019, we had a 50 percent ownership interest in RezPlot, a RV reservation software technology company, acquired in January 2019. Sungenia JV At June 30, 2020 and December 31, 2019, we had a 50 percent interest in Sungenia JV, a joint venture (“JV”) formed between us and Ingenia Communities Group in November 2018, to establish and grow a manufactured housing community development program in Australia. GTSC LLC ( “GTSC” ) At June 30, 2020 and December 31, 2019, we had a 40 percent ownership interest in GTSC, which engages in acquiring, holding and selling loans secured, directly or indirectly, by manufactured homes located in our communities. Origen Financial Services, LLC (“OFS LLC”) At June 30, 2020 and December 31, 2019, we had a 22.9 percent ownership interest in OFS LLC, an end-to-end online resident screening and document management suite. SV Lift, LLC (“SV Lift”) At June 30, 2020 and December 31, 2019, we had a 50 percent ownership interest in SV Lift, which owns, operates and leases an aircraft. The investment balance in each nonconsolidated affiliate is as follows (in thousands): Investment June 30, 2020 December 31, 2019 Investment in RezPlot $ 3,030 $ 4,184 Investment in Sungenia JV 13,013 11,995 Investment in GTSC 23,588 18,488 Investment in OFS LLC 228 148 Investment in SV Lift 3,759 2,961 Total $ 43,619 $ 37,776 The income / (loss) from each nonconsolidated affiliate is as follows (in thousands): Three Months Ended Six Months Ended Income / (Loss) from Nonconsolidated Affiliates June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 RezPlot equity loss $ (654) $ (260) $ (1,154) $ (449) Sungenia JV equity income / (loss) 262 (18) 147 (58) GTSC equity income 700 690 1,460 1,265 OFS LLC equity income 42 67 80 109 SV Lift equity loss (258) — (389) — Total Income from Nonconsolidated Affiliates $ 92 $ 479 $ 144 $ 867 The change in the GTSC investment balance is as follows (in thousands): Six Months Ended Year Ended June 30, 2020 December 31, 2019 Beginning balance $ 18,488 $ 29,780 Adjustment of allowance for losses — 144 Initial fair value option adjustment (see Note 17) 317 — Cash contributions 7,912 33,143 Distributions (3,530) (47,382) Equity earnings 1,460 2,803 Fair value adjustment (1,059) — Ending Balance $ 23,588 $ 18,488

Consolidated Variable Interest

Consolidated Variable Interest Entities	6 Months Ended
	Jun. 30, 2020
DisclosureofVariableInterestEntities [Abstract]
Consolidated Variable Interest Entities	Consolidated Variable Interest Entities The Operating Partnership We consolidate the Operating Partnership under the guidance set forth in FASB ASC Topic 810 “Consolidation.” ASU 2015-02 modified the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or, alternatively, voting interest entities. We evaluated the application of ASU 2015-02 and concluded that the Operating Partnership met the criteria of a VIE. Our significant asset is our investment in the Operating Partnership, and consequently, substantially all of our assets and liabilities represent those assets and liabilities of the Operating Partnership. We are the sole general partner and generally have the power to manage and have complete control over the Operating Partnership and the obligation to absorb its losses or the right to receive its benefits. Sun NG RV Resorts LLC (“Sun NG Resorts”); Rudgate Village SPE, LLC, Rudgate Clinton SPE, LLC, and Rudgate Clinton Estates SPE, LLC (collectively, “Rudgate”); Sun NG Whitewater RV Resorts LLC ; We consolidate Sun NG Resorts, Rudgate, and Sun NG Whitewater RV Resorts LLC, under the guidance set forth in FASB ASC Topic 810 “Consolidation.” We concluded that each of them is a VIE where we are the primary beneficiary, as we have the power to direct the significant activities of, and absorb the significant losses and receive the significant benefits from each entity. Refer to Note 8, “Debt and Lines of Credit,” for additional information on Sun NG Resorts and Note 9, “Equity and Temporary Equity,” for additional information on Sun NG Resorts and Sun NG Whitewater RV Resorts LLC. The following table summarizes the assets and liabilities of Sun NG Resorts, Rudgate, and Sun NG Whitewater RV Resorts LLC included in our Consolidated Balance Sheets after eliminations (in thousands): June 30, 2020 December 31, 2019 Assets Investment property, net $ 357,778 $ 344,300 Other assets, net 27,814 23,894 Total Assets $ 385,592 $ 368,194 Liabilities and Other Equity Debt $ 46,464 $ 46,993 Preferred Equity - Sun NG Resorts - mandatorily redeemable 35,249 35,249 Other liabilities 26,524 13,631 Total Liabilities 108,237 95,873 Equity Interest - NG Sun LLC & NG Sun Whitewater LLC 24,863 27,091 Noncontrolling interests 10,250 8,542 Total Liabilities and Other Equity $ 143,350 $ 131,506

Debt And Lines Of Credit

Debt And Lines Of Credit	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Debt and Lines of Credit The following table sets forth certain information regarding debt including premiums, discounts and deferred financing costs (in thousands except statistical information): Carrying Amount Weighted Average Weighted Average June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 Collateralized term loans - Life Companies $ 1,674,351 $ 1,710,408 16.8 17.1 4.0 % 4.0 % Collateralized term loans - FNMA 889,516 697,589 8.8 7.0 3.4 % 3.7 % Collateralized term loans - CMBS 269,944 397,868 3.4 3.1 4.8 % 5.1 % Collateralized term loans - FMCC 371,696 374,727 4.4 4.9 3.9 % 3.9 % Total collateralized term loans 3,205,507 3,180,592 Preferred equity - Sun NG Resorts - mandatorily redeemable 35,249 35,249 2.3 2.8 6.0 % 6.0 % Preferred OP units - mandatorily redeemable 34,663 34,663 5.6 4.0 5.9 % 6.5 % Lines of credit 115,352 183,898 3.1 3.5 2.0 % 2.7 % Total debt $ 3,390,771 $ 3,434,402 11.6 11.1 3.9 % 4.0 % Collateralized Term Loans During the six months ended June 30, 2020 and year ended December 31, 2019, we repaid the following collateralized term loans (in thousands except statistical information): Three Months Ended Repayment amount Fixed Maturity (Gain) / loss on extinguishment of debt June 30, 2020 $ 52,710 (1) 5.98 % (4) March 1, 2021 $ 1,930 March 31, 2020 $ 99,607 5.837 % March 1, 2021 $ 3,403 $ 19,922 (2) 5.83 % (4) July 1, 2020 $ (124) December 31, 2019 $ 17,048 5.62 % March 1, 2020 $ (84) $ 127,282 5.10 % November 1, 2021 $ 3,274 $ 21,527 (3) 6.24 % (4) March 1, 2020 $ (163) September 30, 2019 $ 134,021 4.3 % May 1, 2023 $ 12,755 March 31, 2019 $ 186,815 3.83 % January 1, 2030 $ 653 (1) Includes four collateralized term loans, two due to mature on March 1, 2021, one due to mature on July 11, 2021, and the other due to mature on December 1, 2021. (2) Includes four collateralized term loans due to mature on July 1, 2020. (3) Includes four collateralized term loans, three due to mature on March 1, 2020 and one due to mature on April 1, 2020. (4) The interest rate represents the weighted average interest rate on collateralized term loans. During the six months ended June 30, 2020 and year ended December 31, 2019, we entered into the following collateralized term loans (in thousands except statistical information): Three Months Ended Loan amount Term Interest Maturity March 31, 2020 $ 230,000 15 2.995 % April 1, 2035 December 31, 2019 $ 400,000 (1) 21 (1) 4.026 % December 15, 2039 September 30, 2019 $ 250,000 10 2.925 % October 1, 2029 March 31, 2019 $ 265,000 25 4.170 % January 15, 2044 (1) Includes two collateralized term loans one due to mature on December 15, 2039 and the other on December 1, 2041. The collateralized term loans totaling $3.2 billion as of June 30, 2020, are secured by 179 properties comprised of 71,504 sites representing approximately $3.1 billion of net book value. Preferred Equity - Sun NG Resorts - mandatorily redeemable In connection with the investment in Sun NG Resorts, $35.3 million of mandatorily redeemable Preferred Equity (“Preferred Equity - Sun NG Resorts”) was purchased by unrelated third parties. The Preferred Equity - Sun NG Resorts carries a preferred rate of return of 6.0 percent per annum. The Preferred Equity - Sun NG Resorts has a seven-year term and can be redeemed in the fourth quarter of 2022 at the holders’ option. The Preferred Equity - Sun NG Resorts as of June 30, 2020 was $35.2 million. Refer to ” Note 7, “Consolidated Variable Interest Entities,” and Note 9, “Equity and Temporary Equity,” for additional information. Preferred OP Units - mandatorily redeemable Preferred OP units at June 30, 2020 and December 31, 2019 include $34.7 million of Aspen preferred OP units issued by the Operating Partnership. As of June 30, 2020, these units are convertible indirectly into 412,485 shares of our common stock. In January 2020, we amended the Operating Partnership’s partnership agreement at the election of certain Aspen preferred OP unit holders. The amendment extended the automatic redemption date and reduced the annual distribution rate for 270,000 of the Aspen preferred OP units (the “Extended Units”). Subject to certain limitations, at any time prior to January 1, 2024 (or prior to January 1, 2034 with respect to the Extended Units), the holder of each Aspen preferred OP unit at its option may convert such Aspen preferred OP unit into: (a) if the average closing price of our common stock for the preceding ten trading days is $68.00 per share or less, 0.397 common OP units; or (b) if the ten-day average closing price is greater than $68.00 per share, the number of common OP units is determined by dividing (i) the sum of (A) $27.00 plus (B) 25 percent of the amount by which the ten-day average closing price exceeds $68.00 per share, by (ii) the ten-day average closing price. The current preferred distribution rate is 3.8 percent on the Extended Units and 6.5 percent on all other Aspen preferred OP units. On January 2, 2024 (or January 2, 2034 with respect to the Extended Units), we are required to redeem for cash all Aspen preferred OP units that have not been converted to common OP units. As of June 30, 2020, 270,000 of the Extended Units and 1,013,819 other Aspen preferred units were outstanding. Lines of Credit Credit agreement - In May 2019, we amended and restated our credit agreement with Citibank, N.A. and certain other lenders. Pursuant to the credit agreement, we entered into a senior credit facility with Citibank and certain lenders in the amount of $750.0 million, comprised of a $650.0 million revolving loan, with the ability to use up to $100.0 million for advances in Australian dollars, and a $100.0 million term loan (the “A&R Facility”). The A&R Credit Agreement has a four-year term ending May 21, 2023, which can be extended for two additional six-month periods, subject to the satisfaction of certain conditions as defined in the credit agreement. The credit agreement also provides for additional commitments in an amount not to exceed $350.0 million. The funding of these additional commitments is subject to certain conditions, including obtaining the consent of the lenders, some of which are outside of our control. If additional borrowings are made pursuant to any such additional commitments, the aggregate borrowing limit under the A&R Facility may be increased up to $1.1 billion. The A&R Facility bears interest at a floating rate based on the Eurodollar rate or Bank Bill Swap Bid Rate plus a margin that is determined based on our leverage ratio calculated in accordance with the credit agreement, which margin can range from 1.20 percent to 2.10 percent for the revolving loan and 1.20 percent to 2.05 percent for the term loan. As of June 30, 2020, the margin based on our leverage ratio was 1.2 percent on the revolving loan and 1.2 percent on the term loan. We had $63.9 million and zero of borrowings on the revolving loan and the term loan, respectively, as of June 30, 2020. We had $123.6 million of borrowings on the revolving loan and no borrowings on the term loan, as of December 31, 2019. The A&R Facility provides us with the ability to issue letters of credit. Our issuance of letters of credit does not increase our borrowings outstanding under our line of credit but does reduce the borrowing amount available. At June 30, 2020 and December 31, 2019, we had approximately $3.1 million and $2.8 million of outstanding letters of credit, respectively. Floor plan - We have a $12.0 million manufactured home floor plan facility renewable indefinitely until our lender provides us at least a twelve month notice of their intent to terminate the agreement. The interest rate is 100 basis points over the greater of the prime rate as quoted in the Wall Street Journal on the first business day of each month or 5.0 percent. At June 30, 2020, the effective interest rate was 6.0 percent. The outstanding balance was $1.4 million as of June 30, 2020 and $3.3 million as of December 31, 2019. These balances are recorded within the line of credit line item on the Consolidated Balance Sheets. Other - In October 2019, we assumed a term loan facility with Citibank N.A. (“Citibank”), in the amount of $58.0 million in relation to an acquisition. The term loan has a four-year term ending October 29, 2023, and bears interest at a floating rate based on the Eurodollar rate or Prime rate. The outstanding balance was $50.0 million at June 30, 2020 and $57.0 million at December 31, 2019, respectively. These balances are recorded within the line of credit line item on the Consolidated Balance Sheets. Covenants The Collateralized term loans and Lines of credit are subject to various financial and other covenants. The most restrictive is pursuant to the terms of the A&R Facility, and contains minimum fixed charge coverage ratio and net worth requirements, and maximum leverage, distribution ratios and variable rate indebtedness. At June 30, 2020, we were in compliance with all covenants. In addition, certain of our subsidiary borrowers own properties that secure loans. These subsidiaries are consolidated within our accompanying Consolidated Financial Statements, however, each of these subsidiaries’ assets and credit are not available to satisfy our debts and other obligations, any of our other subsidiaries or any other person or entity. Off-Balance Sheet Arrangements - Nonconsolidated Affiliate Indebtedness We have a 40 percent investment in GTSC, a nonconsolidated affiliate. During September 2019, GTSC entered into a warehouse line of credit with a maximum loan amount of $125.0 million. During February 2020, the maximum amount was increased to $140.0 million. As of June 30, 2020, the aggregate carrying amount of debt, including both our and our partners’ share, incurred by GTSC was approximately $140.0 million (of which our proportionate share is approximately $56.0 million). The debt bears interest at a variable rate based on LIBOR plus 1.65 percent per annum and matures on September 15, 2023. As of December 31, 2019, the aggregate carrying amount of debt, including both our and our partner’s share, incurred by GTSC was approximately $123.4 million (of which our proportionate share is approximately $49.4 million).

Equity and Temporary Equity

Equity and Temporary Equity	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Equity and Temporary Equity	Public Equity Offerings In May 2020, we closed an underwritten registered public offering of 4,968,000 shares of common stock. Proceeds from the offering were $633.1 million after deducting expenses related to the offering. We used the net proceeds of this offering to repay borrowings outstanding under the revolving loan under our senior credit facility.We intend to use the remaining net proceeds of this offering to fund possible future acquisitions, for working capital and general corporate purposes. In May 2019, we closed an underwritten registered public offering of 3,737,500 shares of common stock. Proceeds from the offering were $452.1 million after deducting expenses related to the offering. We used the net proceeds of this offering to repay borrowings outstanding under the revolving loan under our senior credit facility. At the Market Offering Sales Agreement In July 2017, we entered into an at the market offering sales agreement (the “Sales Agreement”) with certain sales agents (collectively, the “Sales Agents”), whereby we may offer and sell shares of our common stock, having an aggregate offering price of up to $450.0 million, from time to time through the Sales Agents. The Sales Agents are entitled to compensation in an agreed amount not to exceed 2.0 percent of the gross price per share for any shares sold under the Sales Agreement. Through June 30, 2020, we have sold shares of our common stock for gross proceeds of $163.8 million under the Sales Agreement. There were no issuances of common stock under the Sales Agreement during the six months ended June 30, 2020 or the year ended December 31, 2019. Issuances of Common Stock and Common OP Units In May 2020, in connection with the acquisition of the Forest Springs community, we issued 82,420 Common OP units. In October 2019, in connection with the acquisition of the Jensen Portfolio, we issued 1,972,876 shares of common stock, net of fractional shares paid in cash. Issuance of Series E Preferred OP Units In January 2020, we issued 90,000 Series E preferred OP units in connection with the acquisition of Cape Cod RV Resort. The Series E preferred OP units have a stated issuance price of $100.00 per OP Unit and carry a preferred return of 5.25 percent until the second anniversary of the issuance date. Commencing with the second anniversary of the issuance date, the Series E Preferred OP Units carry a preferred return of 5.50 percent. Commencing the first anniversary of the issuance date, subject to certain limitations, each Series E Preferred OP Unit can be exchanged for our common stock equal to the quotient obtained by dividing $100.00 by $145.00 (as such ratio is subject to adjustments for certain capital events). As of June 30, 2020, 90,000 Series E preferred OP Units were outstanding. Refer to Note 3, “Real Estate Acquisitions,” for additional information. Temporary Equity Issuance of Series F Preferred OP Units - In May 2020, we issued 90,000 Series F preferred OP units in connection with the acquisition of Forest Springs. The Series F preferred OP units have a stated issuance price of $100.0 per OP unit and carry a preferred return of 3.0 percent. Subject to certain limitations, at any time after the Series F issuance date, each Series F preferred OP Unit can be exchanged for a number of shares of our common stock equal to the quotient obtained by dividing $100.00 by $160.00 (as such ratio is subject to adjustments for certain capital events) at the holder’s option. The holders may require redemption in cash after the fifth anniversary of the Series F issuance date or upon the holder’s death. As of June 30, 2020, 90,000 Series F preferred OP units were outstanding. Refer to Note 3, “Real Estate Acquisitions,” for additional information. Equity Interests - NG Sun Whitewater LLC - In August 2019, in connection with the investment in land at the property known as Whitewater, NG Sun Whitewater LLC purchased $2.4 million of common equity interest in Sun NG Whitewater RV Resorts LLC (referred to as “Equity Interests - NG Sun Whitewater LLC”). The Equity Interests - NG Sun Whitewater LLC do not have a fixed maturity date. Upon the occurrence of certain events, either NG Sun Whitewater LLC or Sun NG LLC, our subsidiary, can trigger a process under which we may be required to purchase the Equity Interests - NG Sun Whitewater LLC from NG Sun Whitewater LLC. Refer to Note 7, “Consolidated Variable Interest Entities,” for additional information. Issuance of Series D Preferred OP Units - In February 2019, we issued 488,958 Series D preferred OP units in connection with the acquisition of Country Village Estates. The Series D preferred OP units have a stated issuance price of $100.00 per OP Unit and carry a preferred return of 3.75 percent until the second anniversary of the issuance date. Commencing with the second anniversary of the issuance date, the Series D Preferred OP Units carry a preferred return of 4.0 percent. Commencing with the first anniversary of the issuance date, each Series D Preferred OP Unit can be exchanged for our common stock equal to the quotient obtained by dividing $100.00 by $125.00 (as such ratio is subject to adjustments for certain capital events) at the holder’s option. The holders may require redemption in cash after the fifth anniversary of the Series D issuance date or upon the holder’s death. As of June 30, 2020, 488,958 Series D preferred OP units were outstanding. Refer to Note 3, “Real Estate Acquisitions,” for additional information. Equity Interests - NG Sun LLC - In June 2018, in connection with the investment in Sun NG Resorts, unrelated third parties purchased $6.5 million of Series B preferred equity interests and $15.4 million of common equity interest in Sun NG Resorts (herein jointly referred to as “Equity Interest - NG Sun LLC”). The Series B preferred equity interests carry a preferred return at a rate that, at any time, is equal to the interest rate on Sun NG Resorts’ indebtedness at such time. The current rate of return is 5.0 percent. The Equity Interests - NG Sun LLC do not have a fixed maturity date and can be redeemed in the fourth quarter of 2022 at the holders’ option. Sun NG LLC, our subsidiary, has the right during certain periods each year, with or without cause, or for cause at any time, to elect to buy NG Sun LLC’s interest. During a limited period in 2022, NG Sun LLC has the right to put its interest to Sun NG LLC. If either party exercises their option, the property management agreement will be terminated, and we are required to purchase the remaining interests of NG Sun LLC and the property management agreement at fair value. Refer to Note 7, “Consolidated Variable Interest Entities,” and Note 8, “Debt and Lines of Credit,” for additional information. Series A-4 Preferred OP Units - On December 13, 2019, all outstanding shares of our 6.50% Series A-4 Cumulative Convertible Preferred Stock, and all of the Operating Partnership’s Series A-4 Preferred OP Units were converted into common stock and common OP units, respectively. All 1,031,747 shares of Series A-4 preferred stock were converted into 458,541 shares of common stock (net of fractional shares paid in cash). All 405,656 Series A-4 preferred OP units were converted into 180,277 common OP units (net of fractional units paid in cash). The Series A-4 preferred shares and units were issued to the sellers of the American Land Lease portfolio which we acquired in 2014 and 2015. Conversions Conversions to Common Stock - Subject to certain limitations, holders can convert certain series of stock and OP units to shares of our common stock at any time. Below is the activity of conversions during the six months ended June 30, 2020 and 2019: Six Months Ended Six Months Ended June 30, 2020 June 30, 2019 Series Conversion Rate Units/Shares Converted Common Stock (1) Units/Shares Converted Common Stock (1) Common OP unit 1.0000 26,105 26,105 436,177 436,177 Series A-1 preferred OP unit 2.4390 9,114 22,226 7,950 19,387 Series A-4 preferred OP unit 0.4444 — — 4,708 2,092 Series A-4 preferred stock 0.4444 — — 11,288 5,016 (1) Calculation may yield minor differences due to rounding incorporated in the above numbers. Dividends Distributions declared for the three months ended June 30, 2020 were as follows: Cash Distributions Record Date Payment Date Distribution per Share Total Distribution (thousands) Common Stock, Common OP units and Restricted Stock 6/30/2020 7/15/2020 $ 0.79 $ 79,593

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-Based Compensation	Share-Based Compensation As of June 30, 2020, we had two share-based compensation plans: the Sun Communities, Inc. 2015 Equity Incentive Plan (“2015 Equity Incentive Plan”) and the First Amended and Restated 2004 Non-Employee Director Option Plan (“2004 Non-Employee Director Option Plan”). We believe granting equity awards will provide certain executives, key employees and directors additional incentives to promote our financial success and promote employee and director retention by providing an opportunity to acquire or increase the direct proprietary interest of those individuals in our operations and future. During the six months ended June 30, 2020 and 2019, shares were granted as follows: Grant Period Type Plan Shares Granted Grant Date Fair Value Per Share Vesting Type Vesting Anniversary Percentage 2020 Key Employees 2015 Equity Incentive Plan 500 $ 137.19 (1) Time Based 20.0% annually over 5 years 2020 Key Employees 2015 Equity Incentive Plan 51,790 $ 162.42 (1) Time Based 20.0% annually over 5 years 2020 Executive Officers 2015 Equity Incentive Plan 46,000 $ 165.97 (1) Time Based 20.0% annually over 5 years 2020 Executive Officers 2015 Equity Incentive Plan 69,000 (2) $ 125.47 (2) Market Condition 3rd 100.0 % 2020 Directors 2004 Non-Employee Director Option Plan 10,200 $ 147.97 (1) Time Based 3rd 100.0 % 2019 Executive Officers 2015 Equity Incentive Plan 44,000 $ 115.39 (1) Time Based 20.0% annually over 5 years 2019 Executive Officers 2015 Equity Incentive Plan 66,000 (3) $ 115.39 (3) Market Condition 3rd 100.0 % 2019 Directors 2004 Non-Employee Director Option Plan 18,000 $ 113.68 (1) Time Based 3rd 100.0 % 2019 Key Employees 2015 Equity Incentive Plan 55,770 $ 120.01 (1) Time Based 20.0% annually over 5 years 2019 Key Employees 2015 Equity Incentive Plan 6,250 $ 142.48 (1) Time Based 20.0% annually over 5 years (1) The fair values of the grants were determined by using the average closing price of our common stock on the dates the shares were issued. (2) Share-based compensation for restricted stock awards with market conditions is measured based on an estimate of shares expected to vest. We estimate the fair value of share-based compensation for restricted stock with market conditions using a Monte Carlo simulation. At the grant date our common stock price was $165.97. Based on the Monte Carlo simulation we expect 75.6% of the 69,000 shares to vest. (3) Share-based compensation for restricted stock awards with market conditions is measured based on an estimate of shares expected to vest. We estimate the fair value of share-based compensation for restricted stock with market conditions using a Monte Carlo simulation. At the grant date our common stock price was $115.39. Based on the Monte Carlo simulation we expect 75.1% of the 66,000 shares to vest. Vesting The vesting requirements for 248,155 and 196,106 restricted shares granted to our executives, directors and employees were satisfied during the six months ended June 30, 2020 and 2019, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We have elected to be taxed as a real estate investment trust (“REIT”) pursuant to Section 856(c) of the Internal Revenue Code of 1986, as amended (“Code”). In order for us to qualify as a REIT, at least 95 percent of our gross income in any year must be derived from qualifying sources. In addition, a REIT must distribute annually at least 90 percent of its REIT taxable income (calculated without any deduction for dividends paid and excluding capital gain) to its stockholders and meet other tests. Qualification as a REIT involves the satisfaction of numerous requirements (on an annual and quarterly basis) established under highly technical and complex Code provisions for which there are limited judicial or administrative interpretations and involves the determination of various factual matters and circumstances not entirely within our control. In addition, frequent changes occur in the area of REIT taxation which requires us to continually monitor our tax status. We analyzed the various REIT tests and confirmed that we continued to qualify as a REIT for the quarter ended June 30, 2020. As a REIT, we generally will not be subject to United States (“U.S.”) federal income taxes at the corporate level on the ordinary taxable income we distribute to our stockholders as dividends. If we fail to qualify as a REIT in any taxable year, our taxable income could be subject to U.S. federal income tax at regular corporate rates. Even if we qualify as a REIT, we may be subject to certain state and local income taxes as well as U.S. federal income and excise taxes on our undistributed income. In addition, taxable income from non-REIT activities managed through taxable REIT subsidiaries is subject to federal, state, and local income taxes. we are also subject to local income taxes in Canada as a result of the acquisition in 2016 of certain properties located in Canada. We do not provide for withholding taxes on our undistributed earnings from our Canadian subsidiaries as they are reinvested and will continue to be reinvested indefinitely outside of the U.S. However, we are subject to Australian withholding taxes on distributions from our investment in Ingenia Communities Group. Deferred tax assets and liabilities reflect the impact of temporary differences between the amounts of assets and liabilities for financial reporting purposes and the basis of such assets and liabilities as measured by tax laws. Deferred tax assets are reduced, if necessary, by a valuation allowance to the amount where realization is more likely than not assured after considering all available evidence. Our temporary differences primarily relate to net operating loss carryforwards, depreciation and basis differences between tax and U.S. GAAP on our Canadian investments. Our deferred tax assets that have a full valuation allowance relate to our taxable REIT subsidiaries business. Net deferred tax liabilities of $19.8 million and $21.0 million for Canadian entities have been recorded in relation to corporate entities and included in “Other liabilities” in our Consolidated Balance Sheets as of June 30, 2020 and December 31, 2019, respectively. There are no U.S. federal deferred tax assets or liabilities included in our Consolidated Balance Sheets as of June 30, 2020 and December 31, 2019. We had no unrecognized tax benefits as of June 30, 2020 and 2019. We do not expect significant changes in tax positions that would result in unrecognized tax benefits within one year of June 30, 2020. For the three and six months ended June 30, 2020 we recorded a current tax expense for federal, state, Canadian income taxes and Australian withholding taxes of $0.1 million and $0.6 million, respectively. For the three and six months ended June 30, 2019 we recorded a current tax expense for federal, state and Canadian income taxes of $0.3 million and $0.5 million, respectively. For the three months and six months ended June 30, 2020 we recorded a deferred tax benefit of $0.1 million and $0.2 million, respectively. For the three months and six months ended June 30, 2019, we recorded a deferred tax benefit of $0.1 million and $0.3 million, respectively.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share We have outstanding stock options and unvested restricted common shares. Our Operating Partnership has outstanding common OP units, Series A-1 preferred OP units, Series A-3 preferred OP units, Series C preferred OP units, Series D preferred OP units, Series E preferred OP units, Series F preferred OP units, and Aspen preferred OP Units, which, if converted or exercised, may impact dilution. Computations of basic and diluted earnings per share were as follows (in thousands, except per share data): Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Numerator Net Income Attributable to Sun Communities, Inc. Common Stockholders $ 58,910 $ 40,385 $ 42,824 $ 74,716 Less allocation to restricted stock awards 340 448 128 887 Basic earnings - Net income attributable to common stockholders after allocation to restricted stock awards $ 58,570 $ 39,937 $ 42,696 $ 73,829 Add allocation to restricted stock awards 340 448 128 887 Diluted earnings - Net income attributable to common stockholders after allocation to restricted stock awards $ 58,910 $ 40,385 $ 42,824 $ 74,716 Denominator Weighted average common shares outstanding 95,859 87,130 94,134 86,325 Add: dilutive stock options 1 1 1 1 Add: dilutive restricted stock 305 433 390 444 Diluted weighted average common shares and securities 96,165 87,564 94,525 86,770 Earnings Per Share Available to Common Stockholders After Allocation Basic earnings per share $ 0.61 $ 0.46 0.45 0.86 Diluted earnings per share $ 0.61 $ 0.46 0.45 0.86 We have excluded certain convertible securities from the computation of diluted earnings per share because the inclusion of those securities would have been anti-dilutive for the periods presented. The following table presents the outstanding securities that were excluded from the computation of diluted earnings per share as of June 30, 2020 and 2019 (in thousands): As of June 30, 2020 June 30, 2019 Common OP units 2,477 2,289 A-1 preferred OP units 300 324 A-3 preferred OP units 40 40 A-4 preferred OP units — 406 Aspen preferred OP units 1,284 1,284 Series A-4 preferred stock — 1,052 Series C preferred OP units 310 314 Series D preferred OP units 489 489 Series E preferred OP units 90 — Series F preferred OP units 90 — Total Securities 5,080 6,198

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Of Financial Instruments	Our financial instruments consist primarily of cash, cash equivalents and restricted cash, marketable securities, notes and other receivables, accounts payable, and debt. ASC Topic 820 “ Fair Value Measurements and Disclosures, ” requires disclosure regarding determination of fair value for assets and liabilities and establishes a hierarchy under which these assets and liabilities must be grouped, based on significant levels of observable or unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumption. This hierarchy requires the use of observable market data when available. These two types of inputs have created the following fair value hierarchy: Level 1 - Quoted unadjusted prices for identical instruments in active markets; Level 2 - Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and Level 3 - Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. We utilize fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. The following methods and assumptions were used in order to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value: Marketable Securities Marketable securities held by us and accounted for under the ASC 321 “ Investment Equity Securities ” are measured at fair value. Any change in fair value is recognized in the Consolidated Statement of Operations in Remeasurement of marketable securities in accordance with ASU 2016-01 “ Financial Instruments - Overall (Subtopic 825-10): Recognition and measurement of financial assets and financial liabilities .” The fair value is measured by the quoted unadjusted share price which is readily available in active markets (Level 1). The change in the marketable securities balance is as follows (in thousands): Six Months Ended Year Ended June 30, 2020 December 31, 2019 Beginning Balance $ 94,727 $ 49,037 Additional purchase 11,757 8,995 Change in fair value measurement (4,128) 34,240 Foreign currency translation adjustment (2,728) 816 Dividend reinvestment, net of tax 936 1,639 Ending Balance $ 100,564 $ 94,727 Installment Notes Receivable on Manufactured Homes Installment notes receivable on manufactured homes are recorded at fair value and are measured using model-derived indicative pricing using observable inputs, inclusive of default rates, interest rates and recovery rates (Level 2). Refer to Note 4, “Notes and Other Receivables,” and Note 17, “Recent Accounting Pronouncement,” for additional detail. Notes Receivable from Real Estate Developers Notes receivable from real estate developers are recorded at fair value and are measured using prevailing market interest rates (Level 2).The carrying values of the notes generally approximate their fair market values either due to the nature of the note and/or the note being secured by underlying collateral and/or personal guarantees. Refer to Note 4, “Notes and Other Receivables,” and Note 17, “Recent Accounting Pronouncement,” for additional detail. Long-Term Debt and Lines of Credit The fair value of long-term debt is based on the estimates of management and on rates currently quoted, rates currently prevailing for comparable loans, and instruments of comparable maturities (Level 2). Refer to Note 8, “Debt and Lines of Credit,” for additional information. Financial Liabilities We estimate the fair value of our contingent consideration liability based on discounting of future cash flows using market interest rates and adjusting for non-performance risk over the remaining term of the liability (Level 2). Other Financial Instruments The carrying values of cash and cash equivalents, other receivables, and accounts payable approximate their fair market values due to the short-term nature of those instruments. The table below sets forth our financial assets and liabilities that required disclosure of fair value on a recurring basis as of June 30, 2020. The table presents the carrying values and fair values of our financial instruments as of June 30, 2020 and December 31, 2019, that were measured using the valuation techniques described above (in thousands). The table excludes other financial instruments such as cash and cash equivalents, other receivables, and accounts payable as the carrying values associated with these instruments approximate their fair value since their maturities are less than one year. Six Months Ended Year Ended June 30, 2020 December 31, 2019 Financial Assets Carrying Value Fair Carrying Value Fair Marketable securities $ 100,564 $ 100,564 $ 94,727 $ 94,727 Installment notes receivable on manufactured homes, net 90,047 90,047 95,580 95,580 Notes receivable from real estate developers 40,707 40,707 18,960 18,960 Total $ 231,318 $ 231,318 $ 209,267 $ 209,267 Financial Liabilities Debt $ 3,275,419 $ 3,351,204 $ 3,250,504 $ 3,270,544 Lines of credit 115,352 115,352 183,898 183,898 Other liabilities (contingent consideration) 4,155 4,155 6,134 6,134 Total $ 3,394,926 $ 3,470,711 $ 3,440,536 $ 3,460,576

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	Commitments and Contingencies Legal Proceedings We are involved in various legal proceedings arising in the ordinary course of business. All such proceedings, taken together, are not expected to have a material adverse impact on our results of operations or financial condition.

Leases

Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Leases	Leases Lessee accounting Future minimum lease payments under non-cancellable leases as of the six months ended June 30, 2020 where we are the lessee include: Maturity of lease liabilities (in thousands) Operating Leases Finance Leases Total 2020 (Excluding six months ended June 30, 2020) $ 1,612 $ 105 $ 1,717 2021 2,842 120 2,962 2022 2,863 120 2,983 2023 2,993 120 3,113 2024 3,300 4,060 7,360 Thereafter 32,774 — 32,774 Total Lease Payments $ 46,384 $ 4,525 $ 50,909 Less: Imputed interest (20,603) (408) (21,011) Present Value of Lease Liabilities $ 25,781 $ 4,117 $ 29,898 Right-of-use (ROU) assets and lease liabilities for finance and operating leases as included in our Consolidated Balance Sheets are as follows (in thousands): Description Financial Statement Classification June 30, 2020 December 31, 2019 Lease Assets ROU asset obtained in exchange for new finance lease liabilities Other asset, net $ 4,117 $ 4,081 ROU asset obtained in exchange for new operating lease liabilities Other asset, net $ 24,880 $ 23,751 ROU asset obtained relative to below market operating lease Other asset, net $ 27,990 $ 28,366 Lease Liabilities Finance lease liabilities Other liabilities $ 4,117 $ 4,081 Operating lease liabilities Other liabilities $ 25,781 $ 24,222 Lease expense for finance and operating leases as included in our Consolidated Statements of Operations are as follows (in thousands): Three Months Ended Six Months Ended Description Financial Statement Classification June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Finance lease expense Amortization of ROU assets Interest expense $ (18) $ 18 $ (36) $ 36 Interest on lease liabilities Interest expense 26 26 51 52 Operating lease cost General and administrative expense, Property operating and maintenance 977 982 1,952 1,804 Variable lease cost Property operating and maintenance 420 427 789 746 Total Lease Expense $ 1,405 $ 1,453 $ 2,756 $ 2,638 Lease term, discount rates and additional information for finance and operating leases are as follows: Lease Term and Discount Rate June 30, 2020 Weighted-average remaining lease terms (years) Finance lease 4.00 Operating lease 25.71 Weighted-average discount rate Finance lease 2.50 % Operating lease 4.14 % Other Information (in thousands) Six Months Ended June 30, 2020 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating Cash Flow from Operating leases $ 1,147 $ 1,130 Financing Cash Flow from Finance leases 15 15 Total Cash Paid on Lease Liabilities $ 1,162 $ 1,145 Related Party Leases: Lease of Executive Offices. Gary A. Shiffman, together with certain of his family members, indirectly owns an equity interest of approximately 28.1 percent in American Center LLC, the entity from which we lease office space for our principal executive offices. Each of Brian M. Hermelin, Ronald A. Klein and Arthur A. Weiss indirectly owns a less than one percent interest in American Center LLC. Mr. Shiffman is our Chief Executive Officer and Chairman of the Board. Each of Mr. Hermelin, Mr. Klein and Mr. Weiss is a director of the Company. Under this agreement, we lease approximately 103,100 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026, and the current average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rental increases thereafter. We entered into an additional office space operating lease which commenced in January 2020. Under this agreement, we lease approximately 20,087 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026 and the average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rent increases thereafter. Each of Mr. Shiffman, Mr. Hermelin, Mr. Klein and Mr. Weiss may have a conflict of interest with respect to his obligations as our officer and/or director and his ownership interest in American Center LLC. Lessor Accounting We are not the lessor for any finance leases as of June 30, 2020. Over 95 percent of our operating leases where we are the lessor are either month to month or for a time period not to exceed one year. As of the reporting date, future minimum lease payments would not exceed twelve months. Similarly, over 95 percent of our investment property, net on the Consolidated Balance Sheets, and related depreciation amounts relate to assets whereby we are the lessor under an operating lease.
Leases	Lessee accounting Future minimum lease payments under non-cancellable leases as of the six months ended June 30, 2020 where we are the lessee include: Maturity of lease liabilities (in thousands) Operating Leases Finance Leases Total 2020 (Excluding six months ended June 30, 2020) $ 1,612 $ 105 $ 1,717 2021 2,842 120 2,962 2022 2,863 120 2,983 2023 2,993 120 3,113 2024 3,300 4,060 7,360 Thereafter 32,774 — 32,774 Total Lease Payments $ 46,384 $ 4,525 $ 50,909 Less: Imputed interest (20,603) (408) (21,011) Present Value of Lease Liabilities $ 25,781 $ 4,117 $ 29,898 Right-of-use (ROU) assets and lease liabilities for finance and operating leases as included in our Consolidated Balance Sheets are as follows (in thousands): Description Financial Statement Classification June 30, 2020 December 31, 2019 Lease Assets ROU asset obtained in exchange for new finance lease liabilities Other asset, net $ 4,117 $ 4,081 ROU asset obtained in exchange for new operating lease liabilities Other asset, net $ 24,880 $ 23,751 ROU asset obtained relative to below market operating lease Other asset, net $ 27,990 $ 28,366 Lease Liabilities Finance lease liabilities Other liabilities $ 4,117 $ 4,081 Operating lease liabilities Other liabilities $ 25,781 $ 24,222 Lease expense for finance and operating leases as included in our Consolidated Statements of Operations are as follows (in thousands): Three Months Ended Six Months Ended Description Financial Statement Classification June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Finance lease expense Amortization of ROU assets Interest expense $ (18) $ 18 $ (36) $ 36 Interest on lease liabilities Interest expense 26 26 51 52 Operating lease cost General and administrative expense, Property operating and maintenance 977 982 1,952 1,804 Variable lease cost Property operating and maintenance 420 427 789 746 Total Lease Expense $ 1,405 $ 1,453 $ 2,756 $ 2,638 Lease term, discount rates and additional information for finance and operating leases are as follows: Lease Term and Discount Rate June 30, 2020 Weighted-average remaining lease terms (years) Finance lease 4.00 Operating lease 25.71 Weighted-average discount rate Finance lease 2.50 % Operating lease 4.14 % Other Information (in thousands) Six Months Ended June 30, 2020 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating Cash Flow from Operating leases $ 1,147 $ 1,130 Financing Cash Flow from Finance leases 15 15 Total Cash Paid on Lease Liabilities $ 1,162 $ 1,145 Related Party Leases: Lease of Executive Offices. Gary A. Shiffman, together with certain of his family members, indirectly owns an equity interest of approximately 28.1 percent in American Center LLC, the entity from which we lease office space for our principal executive offices. Each of Brian M. Hermelin, Ronald A. Klein and Arthur A. Weiss indirectly owns a less than one percent interest in American Center LLC. Mr. Shiffman is our Chief Executive Officer and Chairman of the Board. Each of Mr. Hermelin, Mr. Klein and Mr. Weiss is a director of the Company. Under this agreement, we lease approximately 103,100 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026, and the current average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rental increases thereafter. We entered into an additional office space operating lease which commenced in January 2020. Under this agreement, we lease approximately 20,087 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026 and the average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rent increases thereafter. Each of Mr. Shiffman, Mr. Hermelin, Mr. Klein and Mr. Weiss may have a conflict of interest with respect to his obligations as our officer and/or director and his ownership interest in American Center LLC. Lessor Accounting We are not the lessor for any finance leases as of June 30, 2020. Over 95 percent of our operating leases where we are the lessor are either month to month or for a time period not to exceed one year. As of the reporting date, future minimum lease payments would not exceed twelve months. Similarly, over 95 percent of our investment property, net on the Consolidated Balance Sheets, and related depreciation amounts relate to assets whereby we are the lessor under an operating lease.
Leases	Lessee accounting Future minimum lease payments under non-cancellable leases as of the six months ended June 30, 2020 where we are the lessee include: Maturity of lease liabilities (in thousands) Operating Leases Finance Leases Total 2020 (Excluding six months ended June 30, 2020) $ 1,612 $ 105 $ 1,717 2021 2,842 120 2,962 2022 2,863 120 2,983 2023 2,993 120 3,113 2024 3,300 4,060 7,360 Thereafter 32,774 — 32,774 Total Lease Payments $ 46,384 $ 4,525 $ 50,909 Less: Imputed interest (20,603) (408) (21,011) Present Value of Lease Liabilities $ 25,781 $ 4,117 $ 29,898 Right-of-use (ROU) assets and lease liabilities for finance and operating leases as included in our Consolidated Balance Sheets are as follows (in thousands): Description Financial Statement Classification June 30, 2020 December 31, 2019 Lease Assets ROU asset obtained in exchange for new finance lease liabilities Other asset, net $ 4,117 $ 4,081 ROU asset obtained in exchange for new operating lease liabilities Other asset, net $ 24,880 $ 23,751 ROU asset obtained relative to below market operating lease Other asset, net $ 27,990 $ 28,366 Lease Liabilities Finance lease liabilities Other liabilities $ 4,117 $ 4,081 Operating lease liabilities Other liabilities $ 25,781 $ 24,222 Lease expense for finance and operating leases as included in our Consolidated Statements of Operations are as follows (in thousands): Three Months Ended Six Months Ended Description Financial Statement Classification June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Finance lease expense Amortization of ROU assets Interest expense $ (18) $ 18 $ (36) $ 36 Interest on lease liabilities Interest expense 26 26 51 52 Operating lease cost General and administrative expense, Property operating and maintenance 977 982 1,952 1,804 Variable lease cost Property operating and maintenance 420 427 789 746 Total Lease Expense $ 1,405 $ 1,453 $ 2,756 $ 2,638 Lease term, discount rates and additional information for finance and operating leases are as follows: Lease Term and Discount Rate June 30, 2020 Weighted-average remaining lease terms (years) Finance lease 4.00 Operating lease 25.71 Weighted-average discount rate Finance lease 2.50 % Operating lease 4.14 % Other Information (in thousands) Six Months Ended June 30, 2020 June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities Operating Cash Flow from Operating leases $ 1,147 $ 1,130 Financing Cash Flow from Finance leases 15 15 Total Cash Paid on Lease Liabilities $ 1,162 $ 1,145 Related Party Leases: Lease of Executive Offices. Gary A. Shiffman, together with certain of his family members, indirectly owns an equity interest of approximately 28.1 percent in American Center LLC, the entity from which we lease office space for our principal executive offices. Each of Brian M. Hermelin, Ronald A. Klein and Arthur A. Weiss indirectly owns a less than one percent interest in American Center LLC. Mr. Shiffman is our Chief Executive Officer and Chairman of the Board. Each of Mr. Hermelin, Mr. Klein and Mr. Weiss is a director of the Company. Under this agreement, we lease approximately 103,100 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026, and the current average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rental increases thereafter. We entered into an additional office space operating lease which commenced in January 2020. Under this agreement, we lease approximately 20,087 rentable square feet of permanent space. The initial term of the lease is until October 31, 2026 and the average gross base rent is $18.95 per square foot until October 31, 2020 with graduated rent increases thereafter. Each of Mr. Shiffman, Mr. Hermelin, Mr. Klein and Mr. Weiss may have a conflict of interest with respect to his obligations as our officer and/or director and his ownership interest in American Center LLC. Lessor Accounting We are not the lessor for any finance leases as of June 30, 2020. Over 95 percent of our operating leases where we are the lessor are either month to month or for a time period not to exceed one year. As of the reporting date, future minimum lease payments would not exceed twelve months. Similarly, over 95 percent of our investment property, net on the Consolidated Balance Sheets, and related depreciation amounts relate to assets whereby we are the lessor under an operating lease.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2020
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements - Adopted In June 2016, the FASB issued ASU 2016-13 “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . ” “CECL” This update replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. As of January 1, 2020, we adopted the fair value option for our installment notes receivable on manufactured homes and the notes receivable within the GTSC JV which resulted in fair value adjustments of $1.6 million and $0.3 million, respectively. We also adopted the fair value option on notes receivable from real estate developers. The carrying values of those notes generally approximate their fair market values either due to the short-term nature of the loan and/or the note being secured by underlying collateral and/or personal guarantees. The adoption of CECL had an immaterial impact on our remaining financial instruments within the CECL scope. Refer to Note 4, “Notes and Other Receivables,”, and Note 6. “Investment in Nonconsolidated Affiliates,” for additional detail.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Acquisition Subsequent to the quarter ended June 30, 2020, we acquired a RV community in Jacksonville, Florida with 421 developed sites for a total purchase price of $34.0 million. Disposition On July 1, 2020, we closed on the sale of a MH community located in Great Falls, Montana, containing 226 sites, for $13.0 million. The assets and liabilities associated with the transaction were classified as held for sale on the Consolidated Balance Sheets as of June 30, 2020.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables details our revenue by major source (in thousands): Three Months Ended June 30, 2020 June 30, 2019 Real Property Operations Home Sales and Rentals Consolidated Real Property Operations Home Sales and Rentals Consolidated Revenues Income from real property $ 231,484 $ — $ 231,484 $ 223,644 $ — $ 223,644 Revenue from home sales — 38,530 38,530 — 47,242 47,242 Rental home revenue — 14,968 14,968 — 14,412 14,412 Ancillary revenue 12,375 — 12,375 19,720 — 19,720 Interest income 2,635 — 2,635 4,919 — 4,919 Brokerage commissions and other revenues, net 3,274 — 3,274 2,508 — 2,508 Total Revenues $ 249,768 $ 53,498 $ 303,266 $ 250,791 $ 61,654 $ 312,445 Six Months Ended June 30, 2020 June 30, 2019 Real Property Operations Home Sales and Rentals Consolidated Real Property Operations Home Sales and Rentals Consolidated Revenues Income from real property $ 469,269 $ — $ 469,269 $ 438,727 $ — $ 438,727 Revenue from home sales — 79,117 79,117 — 86,860 86,860 Rental home revenue — 30,440 30,440 — 28,383 28,383 Ancillary revenue 22,570 — 22,570 29,898 — 29,898 Interest income 4,985 — 4,985 9,719 — 9,719 Brokerage commissions and other revenues, net 7,187 — 7,187 6,188 — 6,188 Total Revenues $ 504,011 $ 109,557 $ 613,568 $ 484,532 $ 115,243 $ 599,775

Real Estate Acquisitions (Table

Real Estate Acquisitions (Tables)	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition		we acquired the following communities: Community Name Type Sites State Month Acquired Cape Cod (1) RV 230 MA January Jellystone Natural Bridge RV 299 VA February Forest Springs (2) MH 372 CA May Crown Villa RV 123 OR June Total 1,024 Community Name Type Sites Development Sites State Month Acquired Slickrock Campground RV 193 — UT December Pandion Ridge RV 142 351 AL November Jensen Portfolio (1) MH 5,230 466 Various October Glen Ellis RV 244 40 NH September Leisure Point Resort (2) MH / RV 502 — DE September Reunion Lake RV 202 69 LA July River Plantation RV 309 — TN May Massey’s Landing RV RV 291 — DE February Shelby Properties (3) MH 1,308 — MI February Buena Vista MH 400 — AZ February Country Village Estates (4) MH 518 — OR January Hid’n Pines RV RV 321 — ME January Hacienda del Rio MH (Age-Restricted) 730 — FL January Total 10,390 926 (1) Contains 31 communities located in CT, GA, MD, NH, NJ, NY, NC and SC. In conjunction with the acquisition, we issued 1,972,876 shares of common stock, net of fractional shares paid in cash. (2) Contains 201 MH sites and 301 RV sites. (3) Contains two MH communities. (4) In conjunction with the acquisition, we issued Series D preferred OP units. As of December 31, 2019, 488,958 Series D preferred OP units were outstanding.
Schedule of Purchase Price Allocation	The following table summarizes the amounts of assets acquired net of liabilities assumed at the acquisition date and the consideration paid for the acquisitions completed in 2019 (in thousands): At Acquisition Date Consideration Investment in property Inventory of manufactured homes In-place leases and other intangible assets Other assets (liabilities), net Total identifiable assets acquired net of liabilities assumed Cash and escrow Debt assumed Temporary and permanent equity Total consideration Slickrock Campground $ 8,250 $ — $ — $ 8 $ 8,258 $ 8,258 $ — $ — $ 8,258 Pandion Ridge 19,070 — — (92) 18,978 18,978 — — 18,978 Jensen Portfolio 374,402 3,605 7,752 3,938 389,697 18,306 58,000 313,391 389,697 Glen Ellis 5,955 — — (79) 5,876 1,976 3,900 — 5,876 Leisure Point Resort 43,632 18 850 (678) 43,822 43,822 — — 43,822 Reunion Lake 23,493 — — (1,153) 22,340 22,340 — — 22,340 River Plantation 22,589 75 — — 22,664 22,664 — — 22,664 Massey's Landing 36,250 — 220 (446) 36,024 36,024 — — 36,024 Shelby Properties 85,969 2,011 6,520 (1,015) 93,485 93,485 — — 93,485 Buena Vista 20,221 439 1,590 (93) 22,157 22,157 — — 22,157 Country Village 62,784 — 2,020 31 64,835 12,905 — 51,930 64,835 Hid'n Pines 10,680 — 70 (233) 10,517 10,517 — — 10,517 Hacienda del Rio 111,971 15 3,280 (237) 115,029 115,029 — — 115,029 Total $ 825,266 $ 6,163 $ 22,302 $ (49) $ 853,682 $ 426,461 $ 61,900 $ 365,321 $ 853,682	At Acquisition Date Consideration Investment in property Inventory of manufactured homes In-place leases and other intangible assets Other assets (liabilities), net Total identifiable assets acquired net of liabilities assumed Cash and escrow Temporary and permanent equity Total consideration Cape Cod $ 13,350 $ — $ 150 $ (295) $ 13,205 $ 4,205 $ 9,000 $ 13,205 Jellystone Natural Bridge 11,364 — 80 (391) 11,053 11,053 — 11,053 Forest Springs 51,949 1,337 2,160 (107) 55,339 36,260 19,079 55,339 Crown Villa 16,792 — — (230) 16,562 16,562 — 16,562 Total $ 93,455 $ 1,337 $ 2,390 $ (1,023) $ 96,159 $ 68,080 $ 28,079 $ 96,159
Business Acquisition, Pro Forma Information		The total amount of revenues and net income included in the Consolidated Statements of Operations for the three and six months ended June 30, 2020 related to the acquisitions completed in 2020 are set forth in the following table (in thousands): Three Months Ended Six Months Ended June 30, 2020 June 30, 2020 Total revenues $ 1,249 $ 1,341 Net income $ 320 $ 214 The information presented below has been prepared for comparative purposes only and does not purport to be indicative of either future results of operations or the results of operations that would have actually occurred had the acquisition been consummated on January 1, 2019 (in thousands, except per-share data): Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Total revenues $ 305,504 $ 315,851 $ 616,215 $ 603,987 Net income attributable to Sun Communities, Inc. common stockholders $ 59,268 $ 40,786 $ 43,269 $ 75,257 Net income per share attributable to Sun Communities, Inc. common stockholders - basic $ 0.63 $ 0.47 $ 0.46 $ 0.87 Net income per share attributable to Sun Communities, Inc. common stockholders - diluted $ 0.63 $ 0.47 $ 0.46 $ 0.87

Notes And Other Receivables (Ta

Notes And Other Receivables (Tables)	6 Months Ended
	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of notes and other receivables	The following table sets forth certain information regarding notes and other receivables (in thousands): June 30, 2020 December 31, 2019 Installment notes receivable on manufactured homes, net $ 90,047 $ 95,580 Notes receivable from real estate developers $ 40,707 $ 18,960 Other receivables, net $ 49,637 $ 43,386 Total Notes and Other Receivables, net $ 180,391 $ 157,926

Intangible Assets Intangible As

Intangible Assets Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Finite-Lived Intangible Assets, Net [Abstract]
Schedule of Finite-Lived Intangible Assets	The gross carrying amounts, and accumulated amortization are as follows (in thousands): June 30, 2020 December 31, 2019 Intangible Asset Useful Life Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization In-place leases 7 years $ 129,283 $ (81,579) $ 127,313 $ (74,548) Franchise agreements and other intangible assets 7 - 20 years 16,944 (3,169) 16,943 (2,760) Total $ 146,227 $ (84,748) $ 144,256 $ (77,308)
Schedule of Intangible Assets Amortization Expense	Total amortization expense related to the intangible assets are as follows (in thousands): Three Months Ended Six Months Ended Intangible Asset Amortization Expense June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 In-place leases $ 3,580 $ 3,800 $ 7,031 $ 7,472 Franchise fees and other intangible assets 204 205 409 409 Total $ 3,784 $ 4,005 $ 7,440 $ 7,881
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	We anticipate amortization expense for our intangible assets to be as follows for the next five years (in thousands): Year Remainder 2020 2021 2022 2023 2024 Estimated expense $ 7,854 $ 15,472 $ 10,871 $ 7,496 $ 5,133

Investment In Affiliates (Table

Investment In Affiliates (Tables)	6 Months Ended
	Jun. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	The investment balance in each nonconsolidated affiliate is as follows (in thousands): Investment June 30, 2020 December 31, 2019 Investment in RezPlot $ 3,030 $ 4,184 Investment in Sungenia JV 13,013 11,995 Investment in GTSC 23,588 18,488 Investment in OFS LLC 228 148 Investment in SV Lift 3,759 2,961 Total $ 43,619 $ 37,776 The income / (loss) from each nonconsolidated affiliate is as follows (in thousands): Three Months Ended Six Months Ended Income / (Loss) from Nonconsolidated Affiliates June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 RezPlot equity loss $ (654) $ (260) $ (1,154) $ (449) Sungenia JV equity income / (loss) 262 (18) 147 (58) GTSC equity income 700 690 1,460 1,265 OFS LLC equity income 42 67 80 109 SV Lift equity loss (258) — (389) — Total Income from Nonconsolidated Affiliates $ 92 $ 479 $ 144 $ 867

Consolidated Variable Interes_2

Consolidated Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2020
DisclosureofVariableInterestEntities [Abstract]
Schedule of Variable Interest Entities	The following table summarizes the assets and liabilities of Sun NG Resorts, Rudgate, and Sun NG Whitewater RV Resorts LLC included in our Consolidated Balance Sheets after eliminations (in thousands): June 30, 2020 December 31, 2019 Assets Investment property, net $ 357,778 $ 344,300 Other assets, net 27,814 23,894 Total Assets $ 385,592 $ 368,194 Liabilities and Other Equity Debt $ 46,464 $ 46,993 Preferred Equity - Sun NG Resorts - mandatorily redeemable 35,249 35,249 Other liabilities 26,524 13,631 Total Liabilities 108,237 95,873 Equity Interest - NG Sun LLC & NG Sun Whitewater LLC 24,863 27,091 Noncontrolling interests 10,250 8,542 Total Liabilities and Other Equity $ 143,350 $ 131,506

Debt And Lines Of Credit (Table

Debt And Lines Of Credit (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of debt and lines of credit [Table Text Block]	The following table sets forth certain information regarding debt including premiums, discounts and deferred financing costs (in thousands except statistical information): Carrying Amount Weighted Average Weighted Average June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 June 30, 2020 December 31, 2019 Collateralized term loans - Life Companies $ 1,674,351 $ 1,710,408 16.8 17.1 4.0 % 4.0 % Collateralized term loans - FNMA 889,516 697,589 8.8 7.0 3.4 % 3.7 % Collateralized term loans - CMBS 269,944 397,868 3.4 3.1 4.8 % 5.1 % Collateralized term loans - FMCC 371,696 374,727 4.4 4.9 3.9 % 3.9 % Total collateralized term loans 3,205,507 3,180,592 Preferred equity - Sun NG Resorts - mandatorily redeemable 35,249 35,249 2.3 2.8 6.0 % 6.0 % Preferred OP units - mandatorily redeemable 34,663 34,663 5.6 4.0 5.9 % 6.5 % Lines of credit 115,352 183,898 3.1 3.5 2.0 % 2.7 % Total debt $ 3,390,771 $ 3,434,402 11.6 11.1 3.9 % 4.0 %

Equity and Temporary Equity (Ta

Equity and Temporary Equity (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Activity of Conversions	Six Months Ended Six Months Ended June 30, 2020 June 30, 2019 Series Conversion Rate Units/Shares Converted Common Stock (1) Units/Shares Converted Common Stock (1) Common OP unit 1.0000 26,105 26,105 436,177 436,177 Series A-1 preferred OP unit 2.4390 9,114 22,226 7,950 19,387 Series A-4 preferred OP unit 0.4444 — — 4,708 2,092 Series A-4 preferred stock 0.4444 — — 11,288 5,016
Schedule of Dividends Payable	Cash Distributions Record Date Payment Date Distribution per Share Total Distribution (thousands) Common Stock, Common OP units and Restricted Stock 6/30/2020 7/15/2020 $ 0.79 $ 79,593

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]
Schedule of Restricted Stock Granted	uring the six months ended June 30, 2020 and 2019, shares were granted as follows: Grant Period Type Plan Shares Granted Grant Date Fair Value Per Share Vesting Type Vesting Anniversary Percentage 2020 Key Employees 2015 Equity Incentive Plan 500 $ 137.19 (1) Time Based 20.0% annually over 5 years 2020 Key Employees 2015 Equity Incentive Plan 51,790 $ 162.42 (1) Time Based 20.0% annually over 5 years 2020 Executive Officers 2015 Equity Incentive Plan 46,000 $ 165.97 (1) Time Based 20.0% annually over 5 years 2020 Executive Officers 2015 Equity Incentive Plan 69,000 (2) $ 125.47 (2) Market Condition 3rd 100.0 % 2020 Directors 2004 Non-Employee Director Option Plan 10,200 $ 147.97 (1) Time Based 3rd 100.0 % 2019 Executive Officers 2015 Equity Incentive Plan 44,000 $ 115.39 (1) Time Based 20.0% annually over 5 years 2019 Executive Officers 2015 Equity Incentive Plan 66,000 (3) $ 115.39 (3) Market Condition 3rd 100.0 % 2019 Directors 2004 Non-Employee Director Option Plan 18,000 $ 113.68 (1) Time Based 3rd 100.0 % 2019 Key Employees 2015 Equity Incentive Plan 55,770 $ 120.01 (1) Time Based 20.0% annually over 5 years 2019 Key Employees 2015 Equity Incentive Plan 6,250 $ 142.48 (1) Time Based 20.0% annually over 5 years (1) The fair values of the grants were determined by using the average closing price of our common stock on the dates the shares were issued. (2) Share-based compensation for restricted stock awards with market conditions is measured based on an estimate of shares expected to vest. We estimate the fair value of share-based compensation for restricted stock with market conditions using a Monte Carlo simulation. At the grant date our common stock price was $165.97. Based on the Monte Carlo simulation we expect 75.6% of the 69,000 shares to vest. (3) Share-based compensation for restricted stock awards with market conditions is measured based on an estimate of shares expected to vest. We estimate the fair value of share-based compensation for restricted stock with market conditions using a Monte Carlo simulation. At the grant date our common stock price was $115.39. Based on the Monte Carlo simulation we expect 75.1% of the 66,000 shares to vest.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	Computations of basic and diluted earnings per share were as follows (in thousands, except per share data): Three Months Ended Six Months Ended June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Numerator Net Income Attributable to Sun Communities, Inc. Common Stockholders $ 58,910 $ 40,385 $ 42,824 $ 74,716 Less allocation to restricted stock awards 340 448 128 887 Basic earnings - Net income attributable to common stockholders after allocation to restricted stock awards $ 58,570 $ 39,937 $ 42,696 $ 73,829 Add allocation to restricted stock awards 340 448 128 887 Diluted earnings - Net income attributable to common stockholders after allocation to restricted stock awards $ 58,910 $ 40,385 $ 42,824 $ 74,716 Denominator Weighted average common shares outstanding 95,859 87,130 94,134 86,325 Add: dilutive stock options 1 1 1 1 Add: dilutive restricted stock 305 433 390 444 Diluted weighted average common shares and securities 96,165 87,564 94,525 86,770 Earnings Per Share Available to Common Stockholders After Allocation Basic earnings per share $ 0.61 $ 0.46 0.45 0.86 Diluted earnings per share $ 0.61 $ 0.46 0.45 0.86
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	The following table presents the outstanding securities that were excluded from the computation of diluted earnings per share as of June 30, 2020 and 2019 (in thousands): As of June 30, 2020 June 30, 2019 Common OP units 2,477 2,289 A-1 preferred OP units 300 324 A-3 preferred OP units 40 40 A-4 preferred OP units — 406 Aspen preferred OP units 1,284 1,284 Series A-4 preferred stock — 1,052 Series C preferred OP units 310 314 Series D preferred OP units 489 489 Series E preferred OP units 90 — Series F preferred OP units 90 — Total Securities 5,080 6,198

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	The table below sets forth our financial assets and liabilities that required disclosure of fair value on a recurring basis as of June 30, 2020. The table presents the carrying values and fair values of our financial instruments as of June 30, 2020 and December 31, 2019, that were measured using the valuation techniques described above (in thousands). The table excludes other financial instruments such as cash and cash equivalents, other receivables, and accounts payable as the carrying values associated with these instruments approximate their fair value since their maturities are less than one year. Six Months Ended Year Ended June 30, 2020 December 31, 2019 Financial Assets Carrying Value Fair Carrying Value Fair Marketable securities $ 100,564 $ 100,564 $ 94,727 $ 94,727 Installment notes receivable on manufactured homes, net 90,047 90,047 95,580 95,580 Notes receivable from real estate developers 40,707 40,707 18,960 18,960 Total $ 231,318 $ 231,318 $ 209,267 $ 209,267 Financial Liabilities Debt $ 3,275,419 $ 3,351,204 $ 3,250,504 $ 3,270,544 Lines of credit 115,352 115,352 183,898 183,898 Other liabilities (contingent consideration) 4,155 4,155 6,134 6,134 Total $ 3,394,926 $ 3,470,711 $ 3,440,536 $ 3,460,576

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Lease, Cost [Table Text Block]		for finance and operating leases as included in our Consolidated Balance Sheets are as follows (in thousands): Description Financial Statement Classification June 30, 2020 December 31, 2019 Lease Assets ROU asset obtained in exchange for new finance lease liabilities Other asset, net $ 4,117 $ 4,081 ROU asset obtained in exchange for new operating lease liabilities Other asset, net $ 24,880 $ 23,751 ROU asset obtained relative to below market operating lease Other asset, net $ 27,990 $ 28,366 Lease Liabilities Finance lease liabilities Other liabilities $ 4,117 $ 4,081 Operating lease liabilities Other liabilities $ 25,781 $ 24,222 Lease expense for finance and operating leases as included in our Consolidated Statements of Operations are as follows (in thousands): Three Months Ended Six Months Ended Description Financial Statement Classification June 30, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Finance lease expense Amortization of ROU assets Interest expense $ (18) $ 18 $ (36) $ 36 Interest on lease liabilities Interest expense 26 26 51 52 Operating lease cost General and administrative expense, Property operating and maintenance 977 982 1,952 1,804 Variable lease cost Property operating and maintenance 420 427 789 746 Total Lease Expense $ 1,405 $ 1,453 $ 2,756 $ 2,638
Finance Lease, Liability, Maturity [Table Text Block]	Future minimum lease payments under non-cancellable leases as of the six months ended June 30, 2020 where we are the lessee include: Maturity of lease liabilities (in thousands) Operating Leases Finance Leases Total 2020 (Excluding six months ended June 30, 2020) $ 1,612 $ 105 $ 1,717 2021 2,842 120 2,962 2022 2,863 120 2,983 2023 2,993 120 3,113 2024 3,300 4,060 7,360 Thereafter 32,774 — 32,774 Total Lease Payments $ 46,384 $ 4,525 $ 50,909 Less: Imputed interest (20,603) (408) (21,011) Present Value of Lease Liabilities $ 25,781 $ 4,117 $ 29,898
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Future minimum lease payments under non-cancellable leases as of the six months ended June 30, 2020 where we are the lessee include: Maturity of lease liabilities (in thousands) Operating Leases Finance Leases Total 2020 (Excluding six months ended June 30, 2020) $ 1,612 $ 105 $ 1,717 2021 2,842 120 2,962 2022 2,863 120 2,983 2023 2,993 120 3,113 2024 3,300 4,060 7,360 Thereafter 32,774 — 32,774 Total Lease Payments $ 46,384 $ 4,525 $ 50,909 Less: Imputed interest (20,603) (408) (21,011) Present Value of Lease Liabilities $ 25,781 $ 4,117 $ 29,898

Basis of Presentation Basis of

Basis of Presentation Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Percent Manufactured Housing Residents	0.66
Percent Recreational Vehicle Guests	0.34

Revenue (Details)

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Income from real property	$ 231,484	$ 223,644	$ 469,269	$ 438,727
Revenues	303,266	312,445	613,568	599,775
Income From Real Property [Member]
Disaggregation of Revenue [Line Items]
Income from real property	231,484	223,644	469,269	438,727
Revenue From Home Sales [Member]
Disaggregation of Revenue [Line Items]
Income from real property	38,530	47,242	79,117	86,860
Rental Home Revenue [Member]
Disaggregation of Revenue [Line Items]
Income from real property	14,968	14,412	30,440	28,383
Ancillary Revenues [Member]
Disaggregation of Revenue [Line Items]
Income from real property	12,375	19,720	22,570	29,898
Interest [Member]
Disaggregation of Revenue [Line Items]
Income from real property	2,635	4,919	4,985	9,719
Brokerage Commissions And Other Revenues, Net [Member]
Disaggregation of Revenue [Line Items]
Income from real property	3,274	2,508	7,187	6,188
Real Property Operations Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	249,768	250,791	504,011	484,532
Real Property Operations Segment [Member] | Income From Real Property [Member]
Disaggregation of Revenue [Line Items]
Income from real property	231,484	223,644	469,269	438,727
Real Property Operations Segment [Member] | Revenue From Home Sales [Member]
Disaggregation of Revenue [Line Items]
Income from real property	0	0	0	0
Real Property Operations Segment [Member] | Rental Home Revenue [Member]
Disaggregation of Revenue [Line Items]
Income from real property	0	0	0	0
Real Property Operations Segment [Member] | Ancillary Revenues [Member]
Disaggregation of Revenue [Line Items]
Income from real property	12,375	19,720	22,570	29,898
Real Property Operations Segment [Member] | Interest [Member]
Disaggregation of Revenue [Line Items]
Income from real property	2,635	4,919	4,985	9,719
Real Property Operations Segment [Member] | Brokerage Commissions And Other Revenues, Net [Member]
Disaggregation of Revenue [Line Items]
Income from real property	3,274	2,508	7,187	6,188
Home Sales and Home Rentals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	53,498	61,654	109,557	115,243
Home Sales and Home Rentals Segment [Member] | Income From Real Property [Member]
Disaggregation of Revenue [Line Items]
Income from real property	0	0	0	0
Home Sales and Home Rentals Segment [Member] | Revenue From Home Sales [Member]
Disaggregation of Revenue [Line Items]
Income from real property	38,530	47,242	79,117	86,860
Home Sales and Home Rentals Segment [Member] | Rental Home Revenue [Member]
Disaggregation of Revenue [Line Items]
Income from real property	14,968	14,412	30,440	28,383
Home Sales and Home Rentals Segment [Member] | Ancillary Revenues [Member]
Disaggregation of Revenue [Line Items]
Income from real property	0	0	0	0
Home Sales and Home Rentals Segment [Member] | Interest [Member]
Disaggregation of Revenue [Line Items]
Income from real property	0	0	0	0
Home Sales and Home Rentals Segment [Member] | Brokerage Commissions And Other Revenues, Net [Member]
Disaggregation of Revenue [Line Items]
Income from real property	$ 0	$ 0	$ 0	$ 0

Revenue Contract Balances (Deta

Revenue Contract Balances (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset, Reclassified to Receivable	$ 20.9	$ 19.2

Real Estate Acquisitions, Sched

Real Estate Acquisitions, Schedule of Properties Acquired (Details)	1 Months Ended		3 Months Ended	6 Months Ended
	May 31, 2020shares	Mar. 31, 2019USD ($)	Mar. 31, 2020USD ($)communitysitesshares	Jun. 30, 2020USD ($)siteshares	Dec. 31, 2019site	Dec. 31, 2019shares	Dec. 31, 2019USD ($)	Dec. 31, 2019development_site
Business Acquisition [Line Items]
Number of MH Sites | sites			201
Investment in property				$ 93,455,000			$ 825,266,000
Sites | site				1,024	10,390
Development Sites | development_site								926
Shares outstanding | shares						488,958
Inventory of manufactured homes				$ 1,337,000			6,163,000
In-place leases and other intangible assets				2,390,000			22,302,000
Other assets (liabilities), net				(1,023,000)			49,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				96,159,000			853,682,000
Cash			$ 426,461,000	68,080,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							61,900,000
Total consideration transferred			853,682,000	96,159,000
Equity			$ 365,321,000	28,079,000
Number of RV Sites | sites			301
Number of Motor Home Communities | community			2
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares			1,972,876
Purchase of Tangible Property		$ 300,000
Other Assets [Member]
Business Acquisition [Line Items]
Real Estate Held-for-sale				$ 5,700,000
Series E Preferred OP Units [Domain]
Business Acquisition [Line Items]
Shares outstanding | shares			90,000	90,000
Series F Preferred OP Units
Business Acquisition [Line Items]
Shares outstanding | shares				90,000
Common OP Units
Business Acquisition [Line Items]
Shares outstanding | shares				82,420
Cape Cod [Member]
Business Acquisition [Line Items]
Investment in property				$ 13,350,000			8,250,000
Sites | site				230
Inventory of manufactured homes				$ 0			0
In-place leases and other intangible assets				150,000			0
Other assets (liabilities), net				(295,000)			(8,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				13,205,000			8,258,000
Cash			$ 8,258,000	4,205,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			8,258,000	13,205,000
Equity			0	9,000,000
Jellystone Natural Bridge [Member]
Business Acquisition [Line Items]
Investment in property				$ 11,364,000
Sites | site				299
Inventory of manufactured homes				$ 0
In-place leases and other intangible assets				80,000
Other assets (liabilities), net				(391,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				11,053,000
Cash				11,053,000
Total consideration transferred				11,053,000
Equity				0
Forest Springs
Business Acquisition [Line Items]
Investment in property				$ 51,949,000
Sites | site				372
Inventory of manufactured homes				$ 1,337,000
In-place leases and other intangible assets				2,160,000
Other assets (liabilities), net				(107,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				55,339,000
Cash				36,260,000
Total consideration transferred				55,339,000
Equity				19,079,000
Forest Springs | Common OP Units
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	82,420
Crown Villa
Business Acquisition [Line Items]
Investment in property				$ 16,792,000
Sites | site				123
Inventory of manufactured homes				$ 0
In-place leases and other intangible assets				0
Other assets (liabilities), net				(230,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				16,562,000
Cash				16,562,000
Total consideration transferred				16,562,000
Equity				$ 0
Slick Rock [Member]
Business Acquisition [Line Items]
Sites | site					193
Development Sites | development_site								0
Pandion Ridge [Member]
Business Acquisition [Line Items]
Investment in property							19,070,000
Sites | site					142
Development Sites | development_site								351
Inventory of manufactured homes							0
In-place leases and other intangible assets							0
Other assets (liabilities), net							92,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							18,978,000
Cash			18,978,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			18,978,000
Equity			0
Jensen Property Acquisition [Member]
Business Acquisition [Line Items]
Investment in property							374,402,000
Development Sites					5,230			466
Inventory of manufactured homes							3,605,000
In-place leases and other intangible assets							7,752,000
Other assets (liabilities), net							(3,938,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							389,697,000
Cash			18,306,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							58,000,000
Total consideration transferred			389,697,000
Equity			$ 313,391,000
Number of Motor Home Communities | community			31
Glen Ellis [Member]
Business Acquisition [Line Items]
Investment in property							5,955,000
Sites | site					244
Development Sites | development_site								40
Inventory of manufactured homes							0
In-place leases and other intangible assets							0
Other assets (liabilities), net							79,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							5,876,000
Cash			$ 1,976,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							3,900,000
Total consideration transferred			5,876,000
Equity			0
Leisure Point Resort [Member]
Business Acquisition [Line Items]
Investment in property							43,632,000
Sites | site					502
Development Sites | development_site								0
Inventory of manufactured homes							18,000
In-place leases and other intangible assets							850,000
Other assets (liabilities), net							678,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							43,822,000
Cash			43,822,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			43,822,000
Equity			0
Reunion Lake [Member]
Business Acquisition [Line Items]
Investment in property							23,493,000
Sites | site					202
Development Sites | development_site								69
Inventory of manufactured homes							0
In-place leases and other intangible assets							0
Other assets (liabilities), net							1,153,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							22,340,000
Cash			22,340,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			22,340,000
Equity			0
River Plantation [Member]
Business Acquisition [Line Items]
Investment in property							22,589,000
Sites | site					309
Development Sites | development_site								0
Inventory of manufactured homes							75,000
In-place leases and other intangible assets							0
Other assets (liabilities), net							0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							22,664,000
Cash			22,664,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			22,664,000
Equity			0
Massey's Landing [Member]
Business Acquisition [Line Items]
Investment in property							36,250,000
Sites | site					291
Development Sites | development_site								0
Inventory of manufactured homes							0
In-place leases and other intangible assets							220,000
Other assets (liabilities), net							446,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							36,024,000
Cash			36,024,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			36,024,000
Equity			0
Shelby Properties [Member]
Business Acquisition [Line Items]
Investment in property							85,969,000
Sites | site					1,308
Development Sites | development_site								0
Inventory of manufactured homes							2,011,000
In-place leases and other intangible assets							6,520,000
Other assets (liabilities), net							1,015,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							93,485,000
Cash			93,485,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			93,485,000
Equity			0
Buena Vista [Member]
Business Acquisition [Line Items]
Investment in property							20,221,000
Sites | site					400
Development Sites | development_site								0
Inventory of manufactured homes							439,000
In-place leases and other intangible assets							1,590,000
Other assets (liabilities), net							93,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							22,157,000
Cash			22,157,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			22,157,000
Equity			0
Country Village [Member]
Business Acquisition [Line Items]
Investment in property							62,784,000
Sites | site					518
Development Sites | development_site								0
Inventory of manufactured homes							0
In-place leases and other intangible assets							2,020,000
Other assets (liabilities), net							(31,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							64,835,000
Cash			12,905,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			64,835,000
Equity			51,930,000
Hid'n Pines [Member]
Business Acquisition [Line Items]
Investment in property							10,680,000
Sites | site					321
Development Sites | development_site								0
Inventory of manufactured homes							0
In-place leases and other intangible assets							70,000
Other assets (liabilities), net							233,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							10,517,000
Cash			10,517,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							0
Total consideration transferred			10,517,000
Equity			0
Hacienda del Rio [Member]
Business Acquisition [Line Items]
Investment in property							111,971,000
Sites | site					730
Development Sites | development_site								0
Inventory of manufactured homes							15,000
In-place leases and other intangible assets							3,280,000
Other assets (liabilities), net							237,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							115,029,000
Cash			115,029,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt							$ 0
Total consideration transferred			115,029,000
Equity			$ 0

Real Estate Acquisitions, Sch_2

Real Estate Acquisitions, Schedule of Other Acquisitions Purchase Price Allocation (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	6 Months Ended
	Aug. 31, 2019	Apr. 30, 2019	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Capitalized transaction costs				$ 2,000
At acquistion date
Investment in property				93,455	$ 825,266
Inventory of manufactured homes				1,337	6,163
In-place leases and other intangible assets				2,390	22,302
Other assets (liabilities), net				(1,023)	49
Total identifiable assets acquired and liabilities assumed				96,159	853,682
Consideration
Cash			$ 426,461	68,080
Equity			365,321	28,079
Total consideration transferred			853,682	96,159
Cape Cod [Member]
At acquistion date
Investment in property				13,350	8,250
Inventory of manufactured homes				0	0
In-place leases and other intangible assets				150	0
Other assets (liabilities), net				(295)	(8)
Total identifiable assets acquired and liabilities assumed				13,205	$ 8,258
Consideration
Cash			8,258	4,205
Equity			0	9,000
Total consideration transferred			$ 8,258	13,205
Jellystone Natural Bridge [Member]
At acquistion date
Investment in property				11,364
Inventory of manufactured homes				0
In-place leases and other intangible assets				80
Other assets (liabilities), net				(391)
Total identifiable assets acquired and liabilities assumed				11,053
Consideration
Cash				11,053
Equity				0
Total consideration transferred				11,053
Forest Springs
At acquistion date
Investment in property				51,949
Inventory of manufactured homes				1,337
In-place leases and other intangible assets				2,160
Other assets (liabilities), net				(107)
Total identifiable assets acquired and liabilities assumed				55,339
Consideration
Cash				36,260
Equity				19,079
Total consideration transferred				55,339
Crown Villa
At acquistion date
Investment in property				16,792
Inventory of manufactured homes				0
In-place leases and other intangible assets				0
Other assets (liabilities), net				(230)
Total identifiable assets acquired and liabilities assumed				16,562
Consideration
Cash				16,562
Equity				0
Total consideration transferred				$ 16,562
Chincoteague [Member]
Consideration
Total consideration transferred	$ 19,500
Strafford [Member]
Consideration
Total consideration transferred		$ 2,700

Real Estate Acquisitions, Pro F

Real Estate Acquisitions, Pro Forma (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land					$ 7,700
Total revenues	$ 1,249		$ 1,341
Net income attributable to Sun Communities, Inc. common stockholders	320		214
Acquisitions - 2019 [Member]
Business Acquisition [Line Items]
Total revenues		$ 315,851		$ 603,987
Net income attributable to Sun Communities, Inc. common stockholders		$ 40,786		$ 75,257
Net income per share attributable to Sun Communities, Inc. common stockholders - basic		$ 0.47		$ 0.87
Net income per share attributable to Sun Communities, Inc. common stockholders - diluted		$ 0.47		$ 0.87
Acquisitions - 2020 [Member]
Business Acquisition [Line Items]
Total revenues	305,504		616,215
Net income attributable to Sun Communities, Inc. common stockholders	$ 59,268		$ 43,269
Net income per share attributable to Sun Communities, Inc. common stockholders - basic	$ 0.63		$ 0.46
Net income per share attributable to Sun Communities, Inc. common stockholders - diluted	$ 0.63		$ 0.46

Notes and Other Receivables, Sc

Notes and Other Receivables, Schedule of notes and other receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	$ 180,391	$ 157,926
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net		95,580
Notes due from Real Estate Developers [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	40,707	18,960
Other receivables, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	49,637	43,386
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net		95,580
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member] | Fair Value, Recurring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	90,047
Estimate of Fair Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member] | Fair Value, Recurring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	$ 90,047	$ 95,580

Notes And Other Receivables Not

Notes And Other Receivables Notes and Other Receivables, Installment notes receivable on manufactured homes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss		$ 180,391	$ 157,926
Notes Receivable, Fair Value Adjustment		0	52
Notes Receivable, Fair Value Disclosure		40,707	18,960
Undrawn Funds On Loans		11,000
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss			95,580
Loans and Leases Receivable, Allowance	$ (600)	$ (600)
Receivable with Imputed Interest, Effective Yield (Interest Rate)	8.00%	7.90%
Receivable With Imputed Interest, Term	15 years 9 months 18 days	15 years 4 months 24 days
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss			95,580
Fair Value, Recurring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment		$ (1,866)
Fair Value, Recurring [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment		(875)	991
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment			0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss		90,047	95,580
Notes Receivable, Fair Value Adjustment			$ 0	$ 0
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss		$ 90,047

Notes and Other Receivables, _2

Notes and Other Receivables, Schedule of installment notes receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 180,391		$ 180,391	$ 157,926
Document Period End Date	Jun. 30, 2020
Notes Receivable, Fair Value Adjustment	$ 0		0	52
Receivable with Imputed Interest, Net Amount	90,047		90,047	95,580
Collateralized receivables, net and Installment Notes Receivables on Manufactured Homes [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase to reserve balance		$ 0	645
Beginning balance		645	645
Ending balance	0		0
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss				95,580
Notes due from Real Estate Developers [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	40,707		40,707	18,960
Installment notes receivable on manufactured homes, gross [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		96,225	96,225
Financed sales of manufactured homes		341	1,036
Principal payments and payoffs from our customers		(8,710)	(4,058)
Principal reduction from repossessed homes		$ 8,901	2,281
Ending balance	90,922		90,922
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss				95,580
Fair Value, Recurring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment	(1,866)		(1,866)
Fair Value, Recurring [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment	(875)		(875)	991
Fair Value, Recurring [Member] | Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	90,047		90,047
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment				0
Fair Value, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Financing Receivable, after Allowance for Credit Loss	$ 90,047		$ 90,047	95,580
Notes Receivable, Fair Value Adjustment				$ 0	$ 0

Notes and Other Receivables, Al

Notes and Other Receivables, Allowance for installment notes receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other Receivables	$ 14,000		$ 14,000	$ 4,800
Document Period End Date	Jun. 30, 2020
Installment notes receivable on manufactured homes, net [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		$ 600	600
Collateralized receivables, net and Installment Notes Receivables on Manufactured Homes [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Increase to reserve balance		$ 0	$ 645

Notes And Other Receivables N_2

Notes And Other Receivables Notes and Other Receivables, Other receivables - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment		$ 0	$ 52
Other receivables for rent, water, sewer usage		8,500	7,800
Allowance for rent, water, sewer usage receivables		(5,100)	(2,200)
Contract with Customer, Asset, Reclassified to Receivable	$ 20,900	19,200
Insurance receivables		$ 7,900	$ 9,900
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable with Imputed Interest, Effective Yield (Interest Rate)	8.00%	7.90%
Receivable With Imputed Interest, Term	15 years 9 months 18 days	15 years 4 months 24 days
Notes due from Real Estate Developers [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable with Imputed Interest, Effective Yield (Interest Rate)		6.10%	7.00%
Receivable With Imputed Interest, Term		1 year 9 months 18 days	1 year 3 months 18 days
Fair Value, Recurring [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment		$ (1,866)
Fair Value, Recurring [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes Receivable, Fair Value Adjustment		$ (875)	$ 991

Intangible Assets Intangible _2

Intangible Assets Intangible Assets, Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 146,227	$ 144,256
Accumulated Amortization	$ (84,748)	(77,308)
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Gross Carrying Amount	$ 129,283	127,313
Accumulated Amortization	(81,579)	(74,548)
Franchise Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	16,944	16,943
Accumulated Amortization	$ (3,169)	$ (2,760)
Minimum [Member] | Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Maximum [Member] | Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years

Intangible Assets Intangible _3

Intangible Assets Intangible Assets, Schedule of Intangible Asset Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 3,784	$ 4,005	$ 7,440	$ 7,881
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	3,580	3,800	7,031	7,472
Franchise Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 204	$ 205	$ 409	$ 409

Intangible Assets, Intangibles

Intangible Assets, Intangibles Future Amortization Expense (Details) $ in Thousands	Jun. 30, 2020USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder 2020	$ 7,854
2021	15,472
2022	10,871
2023	7,496
2024	$ 5,133

Investment In Affiliates , Narr

Investment In Affiliates , Narrative (Details)	Jun. 30, 2020	Dec. 31, 2019
RezPlot [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%	50.00%
Sungenia JV [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%	50.00%
GTSC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	40.00%	40.00%
Origen Financial Services [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	22.90%	22.90%
SV Lift [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	50.00%	50.00%

Investment in Affiliates, Inves

Investment in Affiliates, Investment Balance (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	$ 92	$ 479	$ 144	$ 867
Equity Method Investments	43,619		43,619		$ 37,776
RezPlot [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	(654)	(260)	(1,154)	(449)
Equity Method Investments	3,030		3,030		4,184
Sungenia JV [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	262	(18)	147	(58)
Equity Method Investments	13,013		13,013		11,995
GTSC [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	700	690	1,460	1,265	2,803
Equity Method Investment, Fair Value Adjustment			(1,059)		0
Equity Method Investments	23,588		23,588		18,488	$ 29,780
Equity Method Investment, Adjustment, Allowance for Losses			0		144
Equity Method Investments, Initial Fair Value Adjustment			317		0
Equity Method Investment, Cash Contributions			7,912		33,143
Proceeds from Equity Method Investment, Distribution			(3,530)		(47,382)
Origen Financial Services [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	42	67	80	109
Equity Method Investments	228		228		148
SV Lift [Member]
Schedule of Equity Method Investments [Line Items]
Income (Loss) from Equity Method Investments	(258)	$ 0	(389)	$ 0
Equity Method Investments	$ 3,759		$ 3,759		$ 2,961

Consolidated Variable Interes_3

Consolidated Variable Interest Entities, Schedule of Variable Interest Entities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Investment property, net	$ 7,397,519	$ 7,232,620
Other Assets	222,227	219,896
Secured Debt	3,205,507	3,180,592
Other Liabilities	80,733	81,289
Liabilities	3,845,308	3,848,104
Consolidated VIEs	$ 10,250	$ 8,542
VIE as a Percentage of Consolidated Assets	4.60%	4.70%
VIE as a Percentage of Consolidated Liabilities	2.80%	2.50%
VIE as a Percentage of Total Equity	1.00%
Assets	$ 8,348,659	$ 7,802,060
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Investment property, net	357,778	344,300
Other Assets	27,814	23,894
Secured Debt	46,464	46,993
Preferred OP units - mandatorily redeemable	35,249	35,249
Other Liabilities	26,524	13,631
Liabilities	108,237	95,873
Equity Interests	24,863	27,091
Consolidated VIEs	10,250	8,542
Total Liabilities and Stockholder's Equity	143,350	131,506
Assets	$ 385,592	$ 368,194

Debt And Lines Of Credit , Sche

Debt And Lines Of Credit , Schedule of debt and lines of credit (Details) - USD ($)	3 Months Ended						6 Months Ended		12 Months Ended
	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Reduction in secured borrowing balance							$ 0	$ 9,432,000
Document Period End Date		Jun. 30, 2020
Secured debt		$ 3,205,507,000					$ 3,205,507,000		$ 3,180,592,000
Debt weighted average to maturity, years			11 years 1 month 6 days				11 years 7 months 6 days
Weighted average interest rate		3.90%					3.90%		4.00%
Lines of credit		$ 115,352,000					$ 115,352,000		$ 183,898,000
Total debt		3,390,771,000					3,390,771,000		3,434,402,000
Loss on extinguishment of debt (see Note 8)		(1,930,000)			$ (70,000)		(5,209,000)	(723,000)
Collateralized term loans - CMBS [Member]
Debt Instrument [Line Items]
Secured debt		$ 889,516,000					$ 889,516,000		$ 397,868,000
Debt weighted average to maturity, years			3 years 1 month 6 days				8 years 9 months 18 days
Weighted average interest rate		3.40%					3.40%		5.10%
Secured borrowing [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 230,000,000	$ 250,000,000		$ 265,000,000			$ 400,000,000
Debt instrument term	21 years		15 years	10 years		25 years
Debt Instrument, Interest Rate, Stated Percentage			2.995%	2.925%		4.17%			4.026%
Preferred OP units [Member]
Debt Instrument [Line Items]
Secured debt		$ 34,663,000					$ 34,663,000
Preferred OP units - mandatorily redeemable		34,663,000					34,663,000		$ 34,663,000
Debt weighted average to maturity, years			4 years
Weighted average interest rate									6.50%
Preferred Equity, Mandatorily Redeemable [Member]
Debt Instrument [Line Items]
Preferred OP units - mandatorily redeemable		$ 35,249,000					$ 35,249,000		$ 35,249,000
Debt instrument term							2 years 3 months 18 days
Debt weighted average to maturity, years			2 years 9 months 18 days
Weighted average interest rate		6.00%					6.00%		6.00%
Matures December 1, 2021, 5.98 Percent Interest Rate | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance							$ 52,710,000
Interest rate		5.98%					5.98%
Loss on extinguishment of debt (see Note 8)							$ 1,930,000
Matures March 1, 2021, 5.837 Percent Interest Rate [Member] [Domain] [Domain] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance							$ 99,607,000
Interest rate		5.837%					5.837%
Loss on extinguishment of debt (see Note 8)							$ 3,403,000
Matures July 1, 2020, 5.86 Percent Interest Rate [Member] [Domain] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance							$ 19,922,000
Interest rate		5.83%					5.83%
Loss on extinguishment of debt (see Note 8)			$ (124,000)
Matures March 1, 2020, 5.62 Percent Interest Rate [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance			17,048,000
Interest rate									5.62%
Loss on extinguishment of debt (see Note 8)			$ (84,000)
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Debt Instrument [Line Items]
Secured debt		$ 371,696,000					$ 371,696,000		$ 697,589,000
Debt weighted average to maturity, years			7 years				4 years 4 months 24 days
Weighted average interest rate		3.90%					3.90%		3.70%
Life Companies [Member] | Collateralized Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Secured debt		$ 1,674,351,000					$ 1,674,351,000		$ 1,710,408,000
Debt weighted average to maturity, years			17 years 1 month 6 days				16 years 9 months 18 days
Weighted average interest rate		4.00%					4.00%		4.00%
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Debt Instrument [Line Items]
Secured debt		$ 269,944,000					$ 269,944,000		$ 374,727,000
Debt weighted average to maturity, years			4 years 10 months 24 days				3 years 4 months 24 days
Weighted average interest rate		4.80%					4.80%		3.90%
Matures November 1, 2021, 5.10 Percent Interest Rate [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance			$ 127,282,000
Interest rate									5.10%
Loss on extinguishment of debt (see Note 8)			3,274,000
Matures March 1 and April 1, 2020, 6.24 Percent Interest Rate [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance			21,527,000
Interest rate									6.24%
Loss on extinguishment of debt (see Note 8)			(163,000)
Matures May 1, 2023, 4.3 Percent Interest Rate [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance									$ 134,021,000
Interest rate									4.30%
Loss on extinguishment of debt (see Note 8)			$ 12,755,000
Matures January 1, 2030, 3.83 Percent Interest Rate [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Reduction in secured borrowing balance								$ 186,815,000
Interest rate					3.83%			3.83%
Loss on extinguishment of debt (see Note 8)								$ 653,000
Reported Value Measurement [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Debt weighted average to maturity, years							5 years 7 months 6 days
Weighted average interest rate		5.90%					5.90%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Lines of credit		$ 115,352,000					$ 115,352,000
Revolving Credit Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Debt weighted average to maturity, years			3 years 6 months				3 years 1 month 6 days
Weighted average interest rate		2.00%					2.00%		2.70%

Debt And Lines Of Credit , Narr

Debt And Lines Of Credit , Narrative - Collateralized Term Loans (Details) $ in Thousands	3 Months Ended						6 Months Ended
	Dec. 31, 2020	Jun. 30, 2020USD ($)propertiessiteRate	Mar. 31, 2020USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Jun. 30, 2020USD ($)propertiessiteRate	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)siteRate
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt		$ 1,930			$ 70		$ 5,209	$ 723
Reduction in secured borrowing balance							$ 0	$ 9,432
Weighted average interest rate | Rate		3.90%					3.90%		4.00%
Sites | site		1,024					1,024		10,390
Debt weighted average to maturity, length			11 years 1 month 6 days				11 years 7 months 6 days
Total debt		$ 3,205,507					$ 3,205,507		$ 3,180,592
Document Period End Date		Jun. 30, 2020
Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 230,000	$ 250,000		$ 265,000			$ 400,000
Debt instrument term	21 years		15 years	10 years		25 years
Debt Instrument, Interest Rate, Stated Percentage			2.995%	2.925%		4.17%			4.026%
Commercial Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Weighted average interest rate | Rate		3.40%					3.40%		5.10%
Debt weighted average to maturity, length			3 years 1 month 6 days				8 years 9 months 18 days
Total debt		$ 889,516					$ 889,516		$ 397,868
Collateralized Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Net book value of properties securing collateralized term loans		$ 3,100,000					$ 3,100,000
Properties securing debt [Member] | Collateralized Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Sites | site		71,504					71,504
Debt Instrument, number of properties securing a debt instument | properties		179					179

Debt And Lines Of Credit , Na_2

Debt And Lines Of Credit , Narrative - Aspen Preferred OP Units and Series B-3 preferred OP units (Details) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2020USD ($)shares	Dec. 31, 2019USD ($)shares$ / sharesRate	Sep. 30, 2018USD ($)	Dec. 31, 2014$ / shares
Debt Instrument [Line Items]
Convertible units to shares (in shares) | shares			1,013,819
Financial Instruments Subject to Mandatory Redemption, Rate Of Return	6.00%
Preferred Equity, Mandatorily Redeemable [Member]
Debt Instrument [Line Items]
Financial Instruments Subject to Mandatory Redemption, Value of Shares Issued | $				$ 35,300
Preferred OP units - mandatorily redeemable | $		$ 35,249	$ 35,249
Preferred OP units [Member]
Debt Instrument [Line Items]
Convertible units to shares (in shares) | shares			270,000
Debt Instrument, Interest Rate During Period | Rate			6.50%
Preferred OP units - mandatorily redeemable | $		34,663	$ 34,663
Preferred OP units [Member] | Convertible debt - Aspen Preferred OP Units January 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount | $		$ 34,700	$ 34,700
Convertible units to shares (in shares) | shares		412,485
Debt Instrument, Interest Rate During Period | Rate			3.80%
Debt Instrument, Convertible, Conversion Price | $ / shares			$ 27		$ 68
Debt Instrument, Convertible, Percent Of Amount By Which The Market Price Of Common Stock Exceeds Threshold | Rate			25.00%
Conversion of Stock, Shares Converted | shares			0.397

Debt And Lines Of Credit , Na_3

Debt And Lines Of Credit , Narrative - Line of Credit (Details) - USD ($)	1 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2019	Apr. 30, 2017	Mar. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Feb. 29, 2020	Oct. 31, 2019	May 31, 2019	Apr. 25, 2017
Line of Credit Facility [Line Items]
Lines of credit				$ 115,352,000	$ 183,898,000
Weighted average interest rate				3.90%	4.00%
Debt weighted average to maturity, length			11 years 1 month 6 days	11 years 7 months 6 days
A&R Facility [Member]
Line of Credit Facility [Line Items]
Lines of credit				$ 0
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity									$ 750,000,000
Line of credit, borrowing capacity									1,100,000,000
Debt Instrument, Maturity Date		May 21, 2023
Line of credit, additional borrowing capacity									350,000,000
Letters of credit outstanding, amount				3,100,000	$ 2,800,000
Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity					12,000,000
Lines of credit				1,400,000	$ 3,300,000
Prime Rate [Member] | Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Basis points					10000.00%
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity									650,000,000
Long-term Debt				63,900,000	$ 123,600,000
Lines of credit				$ 115,352,000
Revolving Credit Facility [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Weighted average interest rate				2.00%	2.70%
Debt weighted average to maturity, length			3 years 6 months	3 years 1 month 6 days
Revolving Credit Facility [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Lines of credit				$ 50,000,000	$ 57,000,000		$ 58,000,000
Revolving Credit Facility [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit variable interest rate					1.20%
Term Loan [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity								$ 100,000,000	$ 100,000,000
Term Loan [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit variable interest rate					1.20%
Minimum [Member] | Revolving Credit Facility [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Interest rate									1.20%
Minimum [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Interest rate					1.20%
Maximum [Member] | Prime Rate [Member] | Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Interest rate					6.00%
Debt Instrument, Interest Rate, Stated Percentage					5.00%
Maximum [Member] | Revolving Credit Facility [Member] | Eurodollar [Member] | Line of Credit [Member]
Line of Credit Facility [Line Items]
Interest rate									2.10%
Maximum [Member] | Term Loan [Member]
Line of Credit Facility [Line Items]
Interest rate					2.05%
GTSC [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity					$ 125,000,000	$ 140,000,000
Long-term Debt				$ 56,000,000	$ 49,400,000
Ownership percentage				40.00%	40.00%
GTSC [Member]
Line of Credit Facility [Line Items]
Long-term Debt				$ 140,000,000	$ 123,400,000
GTSC [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis points	1.65%

Equity and Temporary Equity, Na

Equity and Temporary Equity, Narrative (Details) $ / shares in Units, $ in Thousands

1 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

15 Months Ended

May 31, 2020USD ($)$ / sharesshares

Feb. 28, 2020

Jan. 31, 2020

Oct. 31, 2019shares

Aug. 31, 2019USD ($)

May 31, 2019USD ($)shares

Feb. 28, 2019$ / sharesRateshares

Jun. 30, 2018USD ($)

Jun. 30, 2020USD ($)$ / sharesRateshares

Mar. 31, 2020USD ($)shares

Jun. 30, 2019USD ($)

Mar. 31, 2019USD ($)

Jun. 30, 2020$ / sharesshares

Jun. 30, 2019shares

Dec. 31, 2019USD ($)shares

Sep. 30, 2018USD ($)

Class of Stock [Line Items]

Sale of Stock, Number of Shares Issued in Transaction

4,968,000

3,737,500

Proceeds from Issuance of Common Stock | $

$ 633,100

$ 452,100

Variable Interest Entity, Equity Interests Issued | $

$ 2,400

Issuance of common stock and common OP units, net | $

$ 163,800

Aggregate Value of Shares to be Issued in Accordance to Sales Agreement | $

$ 450,000

Commission, Maximum Percentage of Gross Sales Price Per Share According to Sales Agreement

200.00%

Stock Issued During Period, Shares, New Issues

458,541

Temporary Equity, Dividends For Term Two, Percentage

3.00%

Shares outstanding

488,958

Business Acquisition, Equity Interest Issued or Issuable, Number of Shares

1,972,876

Series E Preferred OP Units [Domain]

Class of Stock [Line Items]

Temporary Equity, Dividends For Term One, Percentage

5.25%

Series A-4 Preferred Stock, Shares Issued

90,000

90,000

Temporary Equity, Issuance Price | $ / shares

$ 100

Temporary Equity, Dividends For Term Two, Percentage | Rate

5.50%

Shares outstanding

90,000

90,000

90,000

Series E Preferred OP Units [Domain] | Maximum [Member]

Class of Stock [Line Items]

Convertible Preferred Stock, Shares Issued Per Share Upon Conversion

145

Series D Preferred OP Units

Class of Stock [Line Items]

Temporary Equity, Dividends For Term One, Percentage

3.75%

Series A-4 Preferred Stock, Shares Issued

488,958

Temporary Equity, Issuance Price | $ / shares

$ 100

Temporary Equity, Dividends For Term Two, Percentage | Rate

4.00%

Shares outstanding

488,958

488,958

Series D Preferred OP Units | Maximum [Member]

Class of Stock [Line Items]

Convertible Preferred Stock, Shares Issued Per Share Upon Conversion

160

Series D Preferred OP Units | Minimum [Member]

Class of Stock [Line Items]

Convertible Preferred Stock, Shares Issued Per Share Upon Conversion

125

Series A-4 Preferred Stock

Class of Stock [Line Items]

Temporary Equity, Dividends For Term One, Percentage

6.50%

Conversion of Common OP Units to common stock (in shares)

1,031,747

Common Stock

Class of Stock [Line Items]

Dividends per common share | $ / shares

$ 0.79

Common OP Units

Class of Stock [Line Items]

Series A-4 Preferred Stock, Shares Issued

180,277

Shares outstanding

82,420

82,420

Series A-4 preferred OP units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

405,656

Series F Preferred OP Units

Class of Stock [Line Items]

Series A-4 Preferred Stock, Shares Issued

90,000

Temporary Equity, Issuance Price | $ / shares

$ 100

Shares outstanding

90,000

90,000

Common Stock

Class of Stock [Line Items]

Issuance of common stock and common OP units, net | $

$ 49

$ 1

$ 37

$ 1

Series A-4 preferred OP units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

0

2,092

Series A-4 preferred OP units | Common OP Units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

0

4,708

Conversion of Common OP Units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

26,105

436,177

Conversion of Common OP Units | Common OP Units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

26,105

436,177

Series A-1 Preferred OP Units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

22,226

19,387

Series A-1 Preferred OP Units | Common OP Units

Class of Stock [Line Items]

Conversion of Common OP Units to common stock (in shares)

9,114

7,950

NG Sun LLC [Member] | Sun NG RV Resorts [Member]

Class of Stock [Line Items]

Variable Interest Entity, Equity Interests Issued, Floating Rate

5.00%

NG Sun LLC [Member] | Common Stock | Sun NG RV Resorts [Member]

Class of Stock [Line Items]

Variable Interest Entity, Equity Interests Issued | $

$ 6,500

Sun NG RV Resorts [Member] | Common Stock | Sun NG RV Resorts [Member]

Class of Stock [Line Items]

Variable Interest Entity, Equity Interests Issued | $

$ 15,400

Jensen Communities [Domain] | Common OP Units

Class of Stock [Line Items]

Business Acquisition, Equity Interest Issued or Issuable, Number of Shares

1,972,876

Forest Springs | Common OP Units

Class of Stock [Line Items]

Business Acquisition, Equity Interest Issued or Issuable, Number of Shares

82,420

Equity and Temporary Equity, Co

Equity and Temporary Equity, Conversion of Stock (Details) - $ / shares	1 Months Ended		6 Months Ended
	May 31, 2020	Feb. 28, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Conversion of Stock [Line Items]
Temporary Equity, Dividends For Term Two, Percentage	3.00%
Conversion of Common OP Units
Conversion of Stock [Line Items]
Conversion of units			26,105	436,177
Series A-1 Preferred OP Units
Conversion of Stock [Line Items]
Conversion of units			22,226	19,387
Series A-4 preferred OP units
Conversion of Stock [Line Items]
Conversion of units			0	2,092
Series A-4 Preferred Stock
Conversion of Stock [Line Items]
Conversion of units			0	5,016
Series D Preferred OP Units
Conversion of Stock [Line Items]
Temporary Equity, Dividends For Term Two, Percentage		4.00%
Temporary Equity, Shares Issued		488,958
Temporary Equity, Issuance Price		$ 100
Common OP Units
Conversion of Stock [Line Items]
Temporary Equity, Shares Issued					180,277
Common OP Units | Conversion of Common OP Units
Conversion of Stock [Line Items]
Conversion Rate			1
Conversion of units			26,105	436,177
Common OP Units | Series A-1 Preferred OP Units
Conversion of Stock [Line Items]
Conversion Rate			2.4390
Conversion of units			9,114	7,950
Common OP Units | Series A-4 preferred OP units
Conversion of Stock [Line Items]
Conversion Rate			0.4444
Conversion of units			0	4,708
Preferred Stock | Series A-4 Preferred Stock
Conversion of Stock [Line Items]
Conversion Rate			0.4444
Conversion of units			0	11,288

Share-Based Compensation (Detai

Share-Based Compensation (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2019$ / sharesshares	Jun. 30, 2020numberOfPlans$ / sharesshares	Jun. 30, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Of Share-Based Compensation Plans | numberOfPlans		2
Share-based Compensation Arrangement By Share-based Payment Award, Fair Value Assumptions, Percent Expected To Vest	75.10%	75.60%
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | shares		248,155	196,106
Executive Officer [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Executive Officer [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		100.00%	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Director [Member] | Restricted Stock [Member] | 2004 Non-employee Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			100.00%
Time Based [Member] | Executive Officer [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares			44,000
Weighted average grant date fair value | $ / shares			$ 115.39
Time Based [Member] | Director [Member] | Restricted Stock [Member] | 2004 Non-employee Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares		10,200	18,000
Weighted average grant date fair value | $ / shares		$ 147.97	$ 113.68
Market Condition [Member] | Executive Officer [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares	66,000	69,000	66,000
Weighted average grant date fair value | $ / shares		$ 125.47	$ 115.39
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share Price | $ / shares	$ 115.39	$ 165.97	$ 115.39
Award Date One [Member] | Director [Member] | Restricted Stock [Member] | 2004 Non-employee Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		100.00%
Award Date One [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Award Date One [Member] | Time Based [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares		500
Weighted average grant date fair value | $ / shares		$ 137.19
Award Date Two [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Award Date Two [Member] | Time Based [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares		51,790
Weighted average grant date fair value | $ / shares		$ 162.42
Award Date Three | Executive Officer [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Award Date Three | Time Based [Member] | Executive Officer [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares		46,000
Weighted average grant date fair value | $ / shares		$ 165.97
Award Date Four | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Award Date Four | Time Based [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares			55,770
Weighted average grant date fair value | $ / shares			$ 120.01
Award Date Five | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		20.00%
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Award Date Five | Time Based [Member] | Key Employees [Member] | Restricted Stock [Member] | 2015 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares) | shares			6,250
Weighted average grant date fair value | $ / shares			$ 142.48

Segment Reporting Segment Repor

Segment Reporting Segment Reporting, Seasonality (Details) $ in Millions	3 Months Ended				12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018USD ($)	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019segment	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment					2
Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Expected annual transient RV revenue | $		$ 121.5				$ 21	$ 25.3
Transient RV rental revenue recognized as a percentage	16.40%	40.30%	23.20%	20.10%

Segment Reporting Results of Op

Segment Reporting Results of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue From Home Sales	$ 303,266	$ 312,445	$ 613,568	$ 599,775
Home selling expenses	(2,864)	(3,626)	(6,856)	(6,950)
General and administrative expenses	(26,733)	(23,697)	(52,250)	(45,584)
Loss on extinguishment of debt (see Note 8)	(1,930)	(70)	(5,209)	(723)
Interest on mandatorily redeemable preferred OP units / equity	(1,042)	(1,181)	(2,083)	(2,275)
Catastrophic weather related charges	566	(179)	(40)	(961)
Gain / (loss) on remeasurement of marketable securities (see Note 14)	24,519	3,620	(4,128)	3,887
Gain / (loss) on foreign currency translation	10,374	1,116	(7,105)	3,081
Distributions from Affiliate	92	479	144	867
Loss on Remeasurement of Investment	1,132	0	(1,059)	0
Other expense, net	(552)	(95)	(854)	(162)
Loss on Remeasurement of Notes Receivable	246	0	(1,866)	0
Deferred tax benefit (see Note 12)	112	96	242	313
Net Income	63,355	45,116	47,877	82,243
Less: Preferred return to Series A-1 preferred OP units	1,584	1,718	3,154	3,041
Less: Amounts attributable to noncontrolling interests	2,861	2,585	1,899	3,626
Net Income Attributable to Sun Communities, Inc.	58,910	40,813	42,824	75,576
Less: Preferred stock distributions	0	428	0	860
Net Income Attributable to Sun Communities, Inc. Common Stockholders	58,910	40,385	42,824	74,716
Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Revenue From Home Sales	249,768	250,791	504,011	484,532
Net Income	68,866	48,441	63,108	90,046
Less: Preferred return to Series A-1 preferred OP units	1,584	1,718	3,154	3,041
Less: Amounts attributable to noncontrolling interests	3,083	2,740	2,528	3,999
Net Income Attributable to Sun Communities, Inc.	64,199	43,983	57,426	83,006
Less: Preferred stock distributions	0	428	0	860
Net Income Attributable to Sun Communities, Inc. Common Stockholders	64,199	43,555	57,426	82,146
Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Revenue From Home Sales	53,498	61,654	109,557	115,243
Net Income	(5,511)	(3,325)	(15,231)	(7,803)
Less: Preferred return to Series A-1 preferred OP units	0	0	0	0
Less: Amounts attributable to noncontrolling interests	(222)	(155)	(629)	(373)
Net Income Attributable to Sun Communities, Inc.	(5,289)	(3,170)	(14,602)	(7,430)
Less: Preferred stock distributions	0	0	0	0
Net Income Attributable to Sun Communities, Inc. Common Stockholders	(5,289)	(3,170)	(14,602)	(7,430)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue From Home Sales	297,357	305,018	601,396	583,868
Operating expenses / Cost of sales	125,019	133,706	249,260	248,155
Operating Income (Loss), Total	172,338	171,312	352,136	335,713
Operating Segments [Member] | Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Revenue From Home Sales	243,859	243,364	491,839	468,625
Operating expenses / Cost of sales	91,153	94,094	179,868	174,434
Operating Income (Loss), Total	152,706	149,270	311,971	294,191
Operating Segments [Member] | Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Revenue From Home Sales	53,498	61,654	109,557	115,243
Operating expenses / Cost of sales	33,866	39,612	69,392	73,721
Operating Income (Loss), Total	19,632	22,042	40,165	41,522
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Interest and other revenues, net	5,909	7,427	12,172	15,907
Home selling expenses	(2,864)	(3,626)	(6,856)	(6,950)
General and administrative expenses	(26,733)	(23,697)	(52,250)	(45,584)
Depreciation and amortization	(87,265)	(76,153)	(170,954)	(152,709)
Loss on extinguishment of debt (see Note 8)	(1,930)	(70)	(5,209)	(723)
Interest expense	(31,428)	(33,661)	(63,844)	(67,675)
Interest on mandatorily redeemable preferred OP units / equity	(1,042)	(1,181)	(2,083)	(2,275)
Catastrophic weather related charges	566	(179)	(40)	(961)
Gain / (loss) on remeasurement of marketable securities (see Note 14)	24,519	3,620	(4,128)	3,887
Gain / (loss) on foreign currency translation	10,374	1,116	(7,105)	3,081
Gain (Loss) on Sale of Properties	92	479	144	867
Loss on Remeasurement of Investment	1,132	0	(1,059)	0
Other expense, net	(552)	(95)	(854)	(162)
Loss on Remeasurement of Notes Receivable	246	0	(1,866)	0
Current tax benefit / (expense)	(119)	(272)	(569)	(486)
Deferred tax benefit (see Note 12)	112	96	242	313
Segment Reconciling Items [Member] | Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Interest and other revenues, net	5,909	7,427	12,172	15,907
Home selling expenses	0	0	0	0
General and administrative expenses	(24,455)	(20,722)	(47,011)	(39,956)
Depreciation and amortization	(66,189)	(57,054)	(128,895)	(115,299)
Loss on extinguishment of debt (see Note 8)	(1,930)	(70)	(5,209)	(723)
Interest expense	(31,422)	(33,656)	(63,830)	(67,666)
Interest on mandatorily redeemable preferred OP units / equity	(1,042)	(1,181)	(2,083)	(2,275)
Catastrophic weather related charges	566	(171)	(40)	(953)
Gain / (loss) on remeasurement of marketable securities (see Note 14)	24,519	3,620	(4,128)	3,887
Gain / (loss) on foreign currency translation	10,366	1,114	(7,096)	3,078
Gain (Loss) on Sale of Properties	0	0	0	0
Loss on Remeasurement of Investment	0	0	0	0
Other expense, net	(552)	(53)	(855)	(157)
Loss on Remeasurement of Notes Receivable	246	0	(1,866)	0
Current tax benefit / (expense)	32	(179)	(264)	(301)
Deferred tax benefit (see Note 12)	112	96	242	313
Segment Reconciling Items [Member] | Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Interest and other revenues, net	0	0	0	0
Home selling expenses	(2,864)	(3,626)	(6,856)	(6,950)
General and administrative expenses	(2,278)	(2,975)	(5,239)	(5,628)
Depreciation and amortization	(21,076)	(19,099)	(42,059)	(37,410)
Loss on extinguishment of debt (see Note 8)	0	0	0	0
Interest expense	(6)	(5)	(14)	(9)
Interest on mandatorily redeemable preferred OP units / equity	0	0	0	0
Catastrophic weather related charges	0	(8)	0	(8)
Gain / (loss) on remeasurement of marketable securities (see Note 14)	0	0	0	0
Gain / (loss) on foreign currency translation	8	2	(9)	3
Gain (Loss) on Sale of Properties	92	479	144	867
Loss on Remeasurement of Investment	1,132	0	(1,059)	0
Other expense, net	0	(42)	1	(5)
Loss on Remeasurement of Notes Receivable	0	0	0	0
Current tax benefit / (expense)	(151)	(93)	(305)	(185)
Deferred tax benefit (see Note 12)	$ 0	$ 0	$ 0	$ 0

Segment Reporting Identifiable

Segment Reporting Identifiable Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	$ 7,397,519	$ 7,232,620
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	389,214	34,830	$ 46,038	$ 62,262
Marketable securities	100,564	94,727
Inventory of manufactured homes	58,744	62,061
Notes and other receivables, net	180,391	157,926
Other assets	222,227	219,896
Total Assets	8,348,659	7,802,060
Real Property Operations Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	6,787,026	6,651,275
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	336,793	(8,346)
Marketable securities	100,564	94,727
Inventory of manufactured homes	0	0
Notes and other receivables, net	165,976	142,509
Other assets	159,246	167,804
Total Assets	7,549,605	7,047,969
Home Sales and Home Rentals Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	610,493	581,345
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	52,421	43,176
Marketable securities	0	0
Inventory of manufactured homes	58,744	62,061
Notes and other receivables, net	14,415	15,417
Other assets	62,981	52,092
Total Assets	$ 799,054	$ 754,091

Income Taxes , Narrative (Detai

Income Taxes , Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Minimum Percent of Income From Qualifying Sources to Allow For Real Estate Investment Trust Classification			9500.00%
Required Minimum Percent of Taxable Income Distributed to Stock Holders			9000.00%
Unrecognized Tax Benefits	$ 0	$ 0	$ 0	$ 0
Provision for state income taxes	100,000	300,000	600,000	500,000
Deferred tax benefit (see Note 12)	112,000	$ 96,000	242,000	$ 313,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Liabilities, Gross	$ 19,800,000		$ 19,800,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Liabilities, Gross					$ 21,000,000

Earnings Per Share , Calculatio

Earnings Per Share , Calculation of Numerator and Denominator (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator
Net Income Attributable to Sun Communities, Inc. Common Stockholders	$ 58,910	$ 40,385	$ 42,824	$ 74,716
Less allocation to restricted stock awards	340	448	128	887
Basic earnings - Net income attributable to common stockholders after allocation to restricted stock awards	58,570	39,937	42,696	73,829
Add allocation to restricted stock awards	340	448	128	887
Diluted earnings - Net income attributable to common stockholders after allocation to restricted stock awards	$ 58,910	$ 40,385	$ 42,824	$ 74,716
Denominator
Weighted average common shares outstanding	95,859	87,130	94,134	86,325
Add: dilutive stock options	1	1	1	1
Add: dilutive restricted stock	305	433	390	444
Diluted weighted average common shares and securities	96,165	87,564	94,525	86,770
Basic earnings per share (see Note 13)	$ 0.61	$ 0.46	$ 0.45	$ 0.86
Diluted earnings per share (see Note 13)	$ 0.61	$ 0.46	$ 0.45	$ 0.86

Earnings Per Share , Antidiluti

Earnings Per Share , Antidilutive Securities Excluded from Computation of Loss Per Share (Details) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	5,080	6,198
Common OP Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	2,477	2,289
Series A-1 Preferred OP Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	300	324
Series D Preferred OP Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	489	489
Series A-3 Preferred OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	40	40
Series A-4 preferred OP units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	0	406
Series A-4 Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	0	1,052
Series C preferred OP units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	310	314
Aspen Preferred OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	1,284	1,284
Series E Preferred OP Units [Domain]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	90	0
Series F Preferred OP Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	90	0

Fair Value of Financial Instr_3

Fair Value of Financial Instruments , By Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Financial assets
Notes and other receivables, net	$ 180,391	$ 157,926
Notes Receivable, Fair Value Disclosure	40,707	18,960
Financial liabilities
Secured debt	3,205,507	3,180,592
Installment notes receivable on manufactured homes, net [Member]
Financial assets
Notes and other receivables, net		95,580
Reported Value Measurement [Member]
Financial liabilities
Debt (excluding secured borrowings)	3,275,419	3,250,504
Lines of credit	115,352	183,898
Other liabilities (contingent consideration)	4,155	6,134
Financial Liabilities Fair Value Disclosure	3,394,926	3,440,536
Reported Value Measurement [Member] | Fair Value, Recurring [Member]
Financial assets
Financial Assets Fair Value Disclosure	231,318	209,267
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member]
Financial assets
Notes and other receivables, net		95,580
Reported Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member] | Fair Value, Recurring [Member]
Financial assets
Notes and other receivables, net	90,047
Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member]
Financial assets
Financial Assets Fair Value Disclosure	231,318	209,267
Financial liabilities
Debt (excluding secured borrowings)	3,351,204	3,270,544
Lines of credit	115,352	183,898
Other liabilities (contingent consideration)	4,155	6,134
Financial Liabilities Fair Value Disclosure	3,470,711	3,460,576
Estimate of Fair Value Measurement [Member] | Installment notes receivable on manufactured homes, net [Member] | Fair Value, Recurring [Member]
Financial assets
Notes and other receivables, net	90,047	95,580
Marketable Securities [Member] | Fair Value, Recurring [Member]
Financial assets
Marketable securities	100,564	94,727	$ 49,037
Marketable Securities [Member] | Reported Value Measurement [Member] | Fair Value, Recurring [Member]
Financial assets
Marketable securities	100,564	94,727
Marketable Securities [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member]
Financial assets
Marketable securities	$ 100,564	$ 94,727

Fair Value of Financial Instr_4

Fair Value of Financial Instruments Marketable Securities (Details) - Marketable Securities [Member] - Fair Value, Recurring [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Investment, Additional Purchase	$ 8,995	$ 11,757
Beginning Balance	94,727	94,727
Ending Balance		100,564
Investment, Fair Value Adjustment	34,240	(4,128)
Investment, Foreign Current Translation Adjustment	816	(2,728)
Stock Issued During Period, Value, Dividend Reinvestment Plan	$ 1,639	$ 936

Leases - Future Minimum Lease P

Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020 (Excluding six months ended June 30, 2020)	$ 1,612
2020	2,842
2021	2,863
2022	2,993
2023	3,300
Thereafter	32,774
Total Lease Payments	46,384
Less: Imputed interest	(20,603)
Present Value of Lease Liabilities	25,781	$ 24,222
Finance Lease, Liability, Payment, Due [Abstract]
2020 (Excluding six months ended June 30, 2020)	105
2020	120
2021	120
2022	120
2023	4,060
Thereafter	0
Total Lease Payments	4,525
Less: Imputed interest	(408)
Present Value of Lease Liabilities	4,117
Operating And Finance Leases, Liability, Payments, Due Year Two	2,962
Operating And Finance Leases, Liability, Payments, Due Year Three	2,983
Operating And Finance Leases, Liability, Payments, Due Year Four	3,113
Operating And Finance Leases, Liability, Payments, Due Year Five	7,360
Operating And Finance Leases, Liability, Payments, Due after Year Five	32,774
Operating And Finance Leases, Liability, Payments, Remainder of Fiscal Year	1,717
Operating And Finance Leases, Liability, Payment, Due	50,909
Operating And Finance Leases, Liability, Undiscounted Excess Amount	(21,011)
Operating And Finance Leases, Liability	$ 29,898

Leases - Additional Information

Leases - Additional Information (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020USD ($)ft²$ / sqft	Dec. 31, 2019USD ($)ft²$ / sqft
Lessee, Lease, Description [Line Items]
Operating lease liability	$ 25,781	$ 24,222
Finance lease liability	$ 4,117
CEO | American Center
Lessee, Lease, Description [Line Items]
Ownership percentage		28.10%
Area of rentable real estate property | ft²	20,087	103,100
Gross base rent (USD per sqft) | $ / sqft	18.95	18.95

Leases - Lease Expense (Details

Leases - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Amortization of right - of-use assets	$ (18)		$ 18	$ (36)	$ 36
Interest on lease liabilities	26		26	51	52
Operating lease cost	977		982	1,952	1,804
Total lease expense	$ 1,405		1,453	2,756	2,638
Operating cash flow used for operating leases				1,147	1,130
Financing cash flow used for finance leases				15	15
Right of use asset obtained (land) in exchange for new finance lease liabilities				4,117
Capital Leased Assets, Gross						$ 4,081
Right of use asset obtained in exchange for new operating lease liabilities		$ 23,751		24,880
Right of use asset obtained relative to below market operating leases				$ 27,990
Amortization of above and below Market Leases						28,366
Weighted - average remaining lease term - finance leases (in years)	4 years			4 years
Weighted - average remaining lease term - operating leases (in years)	25 years 8 months 15 days			25 years 8 months 15 days
Weighted - average discount rate - finance leases (annual)	2.50%			2.50%
Weighted - average discount rate - operating leases (annual)	4.14%			4.14%
Present Value of Lease Liabilities	$ 4,117			$ 4,117
Capital Lease Obligations						4,081
Present Value of Lease Liabilities	25,781			25,781		$ 24,222
Operating And Finance Lease, Payments				1,162	1,145
Below Market Leases
Lessee, Lease, Description [Line Items]
Variable lease expense	$ 420		$ 427	$ 789	$ 746

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to Additional Paid in Capital, Fair Value		$ 0.3
Notes Receivable [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments to Additional Paid in Capital, Fair Value	$ 1.6

Subsequent Event (Details)

Subsequent Event (Details)	Jul. 01, 2020USD ($)sites	Jul. 23, 2020USD ($)development_site	Mar. 31, 2020USD ($)sites	Jun. 30, 2020USD ($)
Subsequent Event [Line Items]
Cash paid for RV community acquired			$ 426,461,000	$ 68,080,000
Number of MH Sites | sites			201
Countryside Village
Subsequent Event [Line Items]
Number of MH Sites | sites	226
Consideration received	$ 13,000,000
RV Community
Subsequent Event [Line Items]
Number of recreational vehicle sites acquired (in developed sites) | development_site		421
Cash paid for RV community acquired		$ 34,000,000

Uncategorized Items - sui-20200

Label	Element	Value
Collateralized receivables, net and Installment Notes Receivables on Manufactured Homes [Member]
Financing Receivable, before Allowance for Credit Loss	us-gaap_NotesReceivableGross	$ 697,000
Installment notes receivable on manufactured homes, gross [Member]
Financing Receivable, before Allowance for Credit Loss	us-gaap_NotesReceivableGross	$ 113,495,000