10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

[ X ] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2014.

or

[    ] TRANSITION PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 1-12616

SUN COMMUNITIES, INC.

(Exact Name of Registrant as Specified in its Charter)

Maryland	38-2730780
(State of Incorporation)	(I.R.S. Employer Identification No.)
27777 Franklin Rd.
Suite 200
Southfield, Michigan	48034
(Address of Principal Executive Offices)	(Zip Code)

(248) 208-2500

(Registrant’s telephone number, including area code)

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes [X ]  No [  ]

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes [ X  ]  No [   ]

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. (Check one):

Large accelerated filer [ X ] Accelerated filer [ ] Non-accelerated filer [   ] Smaller reporting company [   ]

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes [   ]  No [ X ]

Number of shares of Common Stock, $0.01 par value per share, outstanding as of March 31, 2014:  40,394,411

INDEX

PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited):	3
	Consolidated Balance Sheets as of March 31, 2014 and December 31, 2013	3
	Consolidated Statements of Operations for the Periods Ended March 31, 2014 and 2013	4
	Consolidated Statements of Comprehensive Income for the Periods Ended March 31, 2014 and 2013	5
	Consolidated Statement of Stockholders’ Equity for the Three Months Ended March 31, 2014	6
	Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2014 and 2013	7
	Notes to Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	25
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	38
Item 4.	Controls and Procedures	38
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	39
Item 1A.	Risk Factors	39
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	39
Item 6.	Exhibits	40
	Signatures	41

2

PART I – FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

SUN COMMUNITIES, INC.

CONSOLIDATED BALANCE SHEETS

(dollars in thousands, except per share amounts)

	(unaudited) March 31, 2014			December 31, 2013
ASSETS
Investment property, net (including $56,427 and $56,805 for consolidated variable interest entities at March 31, 2014 and December 31, 2013; see Note 8)	$	1,864,074		$	1,755,052
Cash and cash equivalents	9,305			4,753
Inventory of manufactured homes	6,541			5,810
Notes and other receivables, net	162,306			164,685
Other assets	66,006			68,936
TOTAL ASSETS	$	2,108,232		$	1,999,236
LIABILITIES
Debt (including $45,024 and $45,209 for consolidated variable interest entities at March 31, 2014 and December 31, 2013; see Note 8)	$	1,408,393		$	1,311,437
Lines of credit	16,441			181,383
Other liabilities	117,618			109,342
TOTAL LIABILITIES	1,542,452			1,602,162
Commitments and contingencies
STOCKHOLDERS’ EQUITY
Preferred stock, $0.01 par value. Authorized: 10,000 shares; Issued and outstanding: 3,400 shares at March 31, 2014 and December 31, 2013	34			34
Common stock, $0.01 par value. Authorized: 90,000 shares; Issued and outstanding: 40,394 shares at March 31, 2014 and 36,140 shares at December 31, 2013	404			361
Additional paid-in capital	1,329,678			1,141,590
Accumulated other comprehensive loss	(277		)	(366		)
Distributions in excess of accumulated earnings	(778,766		)	(761,112		)
Total Sun Communities, Inc. stockholders' equity	551,073			380,507
Noncontrolling interests:
Series A-1 preferred OP units	44,991			45,548
Series A-3 preferred OP units	3,463			3,463
Common OP units	(33,358		)	(31,907		)
Consolidated variable interest entities	(389		)	(537		)
Total noncontrolling interests	14,707			16,567
TOTAL STOCKHOLDERS’ EQUITY	565,780			397,074
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	2,108,232		$	1,999,236

See accompanying Notes to Consolidated Financial Statements.

3

SUN COMMUNITIES, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited - dollars in thousands, except per share amounts)

	Three Months Ended March 31,
	2014			2013
REVENUES
Income from real property	$	87,497		$	79,065
Revenue from home sales	10,123			12,856
Rental home revenue	9,402			7,361
Ancillary revenues, net	518			472
Interest	3,354			2,963
Brokerage commissions and other income, net	287			196
Total revenues	111,181			102,913
COSTS AND EXPENSES
Property operating and maintenance	23,189			19,946
Real estate taxes	6,009			5,756
Cost of home sales	7,848			9,816
Rental home operating and maintenance	5,251			4,263
General and administrative - real property	7,813			6,790
General and administrative - home sales and rentals	2,499			2,435
Acquisition related costs	760			1,042
Depreciation and amortization	28,889			25,262
Interest	17,590			18,864
Interest on mandatorily redeemable debt	803			809
Total expenses	100,651			94,983
Income before income taxes and distributions from affiliate	10,530			7,930
Provision for state income taxes	(69		)	(59		)
Distributions from affiliate	400			400
Net income	10,861			8,271
Less:  Preferred return to Series A-1 preferred OP units	672			573
Less:  Preferred return to Series A-3 preferred OP units	45			30
Less:  Amounts attributable to noncontrolling interests	784			410
Net income attributable to Sun Communities, Inc.	9,360			7,258
Less: Series A preferred stock distributions	1,514			1,514
Net income attributable to Sun Communities, Inc. common stockholders	$	7,846		$	5,744
Weighted average common shares outstanding:
Basic	37,140			30,774
Diluted	37,154			30,789
Earnings per share:
Basic	$	0.21		$	0.19
Diluted	$	0.21		$	0.19
Distributions per common share:	$	0.65		$	0.63

See accompanying Notes to Consolidated Financial Statements.

4

SUN COMMUNITIES, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited - dollars in thousands)

	Three Months Ended March 31,
	2014		2013
Net income	$	10,861	$	8,271
Unrealized gain on interest rate swaps	97		92
Total comprehensive income	10,958		8,363
Less: Comprehensive income attributable to the noncontrolling interests	792		419
Comprehensive income attributable to Sun Communities, Inc.	$	10,166	$	7,944

See accompanying Notes to Consolidated Financial Statements.

5

SUN COMMUNITIES, INC.

CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY

FOR THE THREE MONTHS ENDEDMARCH 31, 2014

(Unaudited - dollars in thousands)

	7.125% Series A Cumulative Redeemable Preferred Stock		Common Stock		Additional Paid-in Capital		Accumulated Other Comprehensive Income (Loss)			Distributions in Excess of Accumulated Earnings			Non-controlling Interests			Total Stockholders' Equity
Balance as of December 31, 2013	$	34	$	361	$	1,141,590	$	(366	)	$	(761,112	)	$	16,567		$	397,074
Issuance of common stock from exercise of options, net	—		—		53		—			—			—			53
Issuance, conversion of OP units and associated costs of common stock, net	—		43		186,945		—			—			(557		)	186,431
Share-based compensation - amortization and forfeitures	—		—		1,090		—			40			—			1,130
Net income	—		—		—		—			10,077			784			10,861
Unrealized gain on interest rate swaps	—		—		—		89			—			8			97
Distributions	—		—		—		—			(27,771		)	(2,095		)	(29,866		)
Balance as of March 31, 2014	$	34	$	404	$	1,329,678	$	(277	)	$	(778,766	)	$	14,707		$	565,780

See accompanying Notes to Consolidated Financial Statements.

6

SUN COMMUNITIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited - dollars in thousands)

	Three Months Ended March 31,
	2014			2013
OPERATING ACTIVITIES:
Net income	$	10,861		$	8,271
Adjustments to reconcile net income to net cash provided by operating activities:
Gain from dispositions	(983		)	(635		)
Loss on valuation of derivative instruments	—			1
Share-based compensation	1,130			564
Depreciation and amortization	29,159			24,851
Amortization of deferred financing costs	277			726
Distributions from affiliate	(400		)	(400		)
Change in notes receivable from financed sales of inventory homes, net of repayments	(120		)	(5,111		)
Change in inventory, other assets and other receivables, net	1,506			1,855
Change in other liabilities	3,244			(2,489		)
NET CASH PROVIDED BY OPERATING ACTIVITIES	44,674			27,633
INVESTING ACTIVITIES:
Investment in properties	(36,957		)	(38,109		)
Acquisitions of properties	(104,142		)	(55,618		)
Investment in note receivable of acquired properties	—			(49,441		)
Proceeds related to affiliate dividend distribution	400			400
Proceeds related to disposition of land	258			—
Proceeds related to disposition of assets and depreciated homes, net	2,824			593
Issuance of notes and other receivables	(1,323		)	(347		)
Repayments of notes and other receivables	272			183
NET CASH USED FOR INVESTING ACTIVITIES	(138,668		)	(142,339		)
FINANCING ACTIVITIES:
Issuance and associated costs of common stock, OP units, and preferred OP units, net	186,431			262,134
Net proceeds from stock option exercise	53			100
Distributions to stockholders, OP unit holders, and preferred OP unit holders	(26,303		)	(21,712		)
Borrowings on lines of credit	148,414			149,631
Payments on lines of credit	(313,356		)	(179,020		)
Proceeds from issuance of other debt	105,549			6,973
Payments on other debt	(3,697		)	(70,111		)
Proceeds received from return of prepaid deferred financing costs	2,384			—
Payments for deferred financing costs	(929		)	(1,752		)
NET CASH PROVIDED BY FINANCING ACTIVITIES	98,546			146,243
Net change in cash and cash equivalents	4,552			31,537
Cash and cash equivalents, beginning of period	4,753			29,508
Cash and cash equivalents, end of period	$	9,305		$	61,045
SUPPLEMENTAL INFORMATION:
Cash paid for interest (net of capitalized interest of $171 and $0, respectively)	$	13,739		$	14,674
Cash paid for interest on mandatorily redeemable debt	$	803		$	809
Noncash investing and financing activities:
Unrealized gain on interest rate swaps	$	97		$	92
Reduction in secured borrowing balance	$	4,850		$	3,926
Change in distributions declared and outstanding	$	3,563		$	4,335
Conversion of Series A-1 preferred OP units	$	556		$	—
Noncash investing and financing activities at the date of acquisition:
Acquisitions - Series A-3 preferred OP units issued	$	—		$	3,463
Acquisitions - release of note receivable and accrued interest	$	—		$	49,441

See accompanying Notes to Consolidated Financial Statements.

7

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.      Basis of Presentation

The unaudited interim consolidated financial statements of 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”), SunChamp LLC (“SunChamp”), and Sun Home Services, Inc. (“SHS”), have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information and in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying 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. Certain reclassifications have been made to prior periods’ financial statements in order to conform to current period presentation.

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 interim 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, 2013 as filed with the SEC on February 20, 2014 (the “2013 Annual Report”). These statements have been prepared on a basis that is substantially consistent with the accounting principles applied in our 2013 Annual Report.

Reference in this report to Sun Communities, Inc., “we”, “our”, “us” and the “Company” refer to Sun Communities, Inc. and its subsidiaries, unless the context indicates otherwise.

8

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

2.      Real Estate Acquisitions

In February 2014, we acquired Driftwood Camping Resort ("Driftwood"), a recreational vehicle ("RV") community with 698 sites and expansion potential of approximately 30 sites located in Clermont, New Jersey, and Seashore Campsites RV and Campground ("Seashore"), an RV community with 685 sites located in Cape May, New Jersey.

In January 2014, we acquired Castaways RV Resort & Campground ("Castaways"), an RV community with 369 sites and expansion potential of approximately 25 sites located in Worcester County, Maryland, and Wine Country RV Resort ("Wine Country"), an RV community with 166 sites and expansion potential of approximately 34 sites located in Paso Robles, California.

The following tables summarize the amounts of the assets acquired and liabilities assumed at the acquisition dates and the consideration paid for acquisitions completed in 2014 (in thousands):

At Acquisition Date	Wine Country			Castaways			Seashore			Driftwood			Total
Investment in property	$	13,250		$	36,597		$	24,258		$	31,301		$	105,406
In-place leases and other intangible assets	—			—			500			790			1,290
Other assets	9			2			12			4			27
Other liabilities	(60		)	(497		)	(1,188		)	(836		)	(2,581		)
Total identifiable assets and liabilities assumed	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142
Consideration
Cash consideration transferred	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142

The purchase price allocations for Wine Country, Castaways, Seashore and Driftwood are preliminary and may be adjusted as final costs and final valuations are determined.

The amount of revenue and net income included in the consolidated statements of operations for the three months ended March 31, 2014 for all acquisitions described above is set forth in the following table (in thousands):

	Three Months Ended March 31, 2014
	(unaudited)
Revenue	$	1,053
Net income	$	359

9

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

2.      Real Estate Acquisitions, continued

The following unaudited pro forma financial information presents the results of our operations for the three months ended March 31, 2014 and 2013 as if the properties were acquired on January 1, 2013. The unaudited pro forma results reflect certain adjustments for items that are not expected to have a continuing impact, such as adjustments for acquisition 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 acquisitions been consummated on January 1, 2013 (in thousands, except per-share data).

	Three Months Ended March 31,
	(unaudited)
	2014		2013
Total revenues	$	112,132	$	106,100
Net income attributable to Sun Communities, Inc. common stockholders	$	8,684	$	7,059
Net income per share attributable to Sun Communities, Inc. common stockholders - basic	$	0.23	$	0.23
Net income per share attributable to Sun Communities, Inc. common stockholders - diluted	$	0.23	$	0.23

Acquisition related costs of approximately $0.8 million and $1.0 million have been incurred for the three months ended March 31, 2014 and 2013, respectively, and are presented as “Acquisition related costs” in our consolidated statements of operations.

3.      Investment Property

The following table sets forth certain information regarding investment property (in thousands):

	March 31, 2014			December 31, 2013
Land	$	212,901		$	194,404
Land improvements and buildings	1,897,386			1,806,546
Rental homes and improvements	414,782			393,562
Furniture, fixtures, and equipment	67,432			65,086
Land held for future development	29,521			29,521
Investment property	2,622,022			2,489,119
Accumulated depreciation	(757,948		)	(734,067		)
Investment property, net	$	1,864,074		$	1,755,052

Land improvements and buildings consist primarily of infrastructure, roads, landscaping, clubhouses, maintenance buildings and amenities.

See Note 2, "Real Estate Acquisitions", for details on recent acquisitions.

10

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

4.      Transfers of Financial Assets

We completed various transactions with an unrelated entity involving our notes receivable under which we received cash proceeds in exchange for relinquishing our right, title and interest in certain notes receivable. We have no further obligations or rights with respect to the control, management, administration, servicing, or collection of the installment notes. However, we are subject to certain recourse provisions requiring us to purchase the underlying homes collateralizing such notes, in the event of a note default and subsequent repossession of the home by the unrelated entity. The recourse provisions are considered to be a form of continuing involvement, and therefore these transferred loans did not meet the requirements for sale accounting. We continue to recognize these transferred loans on our balance sheet and refer to them as collateralized receivables. The proceeds from the transfer have been recognized as a secured borrowing.

In the event of note default, and subsequent repossession of a manufactured home by the unrelated entity, the terms of the agreement require us to repurchase the manufactured home. Default is defined as the failure to repay the installment note according to contractual terms. The repurchase price is calculated as a percentage of the outstanding principal balance of the collateralized receivable, plus any outstanding late fees, accrued interest, legal fees, and escrow advances associated with the installment note.  The percentage used to determine the repurchase price of the outstanding principal balance on the installment note is based on the number of payments made on the note. In general, the repurchase price is determined as follows:

Number of Payments	Repurchase %
Less than or equal to 15	100	%
Greater than 15 but less than 64	90	%
Equal to or greater than 64 but less than 120	65	%
120 or more	50	%

The transferred assets have been classified as collateralized receivables in Notes and Other Receivables (see Note 5), and the cash proceeds received from these transactions have been classified as a secured borrowing in Debt (see Note 9) within the consolidated balance sheets. The balance of the collateralized receivables was $111.4 million (net of allowance of $0.8 million) and $109.8 million (net of allowance of $0.7 million) as of March 31, 2014 and December 31, 2013, respectively.  The outstanding balance on the secured borrowing was $112.2 million and $110.5 million as of March 31, 2014 and December 31, 2013, respectively.

The balances of the collateralized receivables and secured borrowings fluctuate. The balances increase as additional notes receivable are transferred and exchanged for cash proceeds. The balances are reduced as the related collateralized receivables are collected from the customers, or as the underlying collateral is repurchased. The change in the aggregate gross principal balance of the collateralized receivables is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	110,510
Financed sales of manufactured homes	6,548
Principal payments and payoffs from our customers	(1,854		)
Principal reduction from repurchased homes	(2,996		)
Total activity	1,698
Ending balance	$	112,208

The collateralized receivables earn interest income, and the secured borrowings accrue interest expense at the same interest rates. The amount of interest income and expense recognized was $2.7 million and $2.4 million for the three months endedMarch 31, 2014 and 2013, respectively.  

11

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

5.      Notes and Other Receivables

The following table sets forth certain information regarding notes and other receivables (in thousands):

	March 31, 2014		December 31, 2013
Installment notes receivable on manufactured homes, net	$	24,385	$	25,471
Collateralized receivables, net (see Note 4)	111,442		109,821
Other receivables, net	26,479		29,393
Total notes and other receivables, net	$	162,306	$	164,685

Installment Notes Receivable on Manufactured Homes

The installment notes of $24.4 million (net of allowance of $0.1 million) and $25.5 million (net of allowance of $0.1 million) as of March 31, 2014 and December 31, 2013, respectively, are collateralized by manufactured homes. The notes represent financing provided by us to purchasers of manufactured homes primarily located in our communities and require monthly principal and interest payments. The notes have a net weighted average interest rate and maturity of 10.3% and 11.8 years as of March 31, 2014, and 8.9% and 11.9 years as of December 31, 2013.

The change in the aggregate gross principal balance of the installment notes is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	25,575
Financed sales of manufactured homes	62
Principal payments and payoffs from our customers	(731		)
Principal reduction from repossessed homes	(389		)
Total activity	(1,058		)
Ending balance	$	24,517

Collateralized Receivables

Collateralized receivables represent notes receivable that were transferred to a third party, but did not meet the requirements for sale accounting (see Note 4). The receivables have a balance of $111.4 million (net of allowance of $0.8 million) and $109.8 million (net of allowance of $0.7 million ) as of March 31, 2014 and December 31, 2013, respectively.  The receivables have a net weighted average interest rate and maturity of 10.6% and 13.7 years as of March 31, 2014, and 10.7% and 13.6 years as of December 31, 2013.

Allowance for Losses for Collateralized and Installment Notes Receivable

The following table sets forth the allowance for collateralized and installment notes receivable as of March 31, 2014 (in thousands).

	Three Months Ended
	March 31, 2014
Beginning balance	$	(793	)
Lower of cost or market write-downs	149
Increase to reserve balance	(254		)
Total activity	(105		)
Ending balance	$	(898	)

12

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

5.      Notes and Other Receivables, continued

Other Receivables

As of March 31, 2014, other receivables were comprised of amounts due from residents for rent and water and sewer usage of $4.7 million (net of allowance of $0.5 million), home sale proceeds of $5.0 million, insurance receivables of $2.4 million, insurance settlement of $3.7 million, rebates and other receivables of $4.2 million and two notes receivable of $4.3 million and $2.2 million. The $4.3 million note bears interest at LIBOR plus 475 basis points, is secured by senior mortgages on two RV communities, a pledge of $4.0 million in Series A-3 Preferred OP Units, a subordinated interest in cash collateral account and equity interests in another RV community and is due on May 31, 2014.  The $2.2 million note bears interest at 8.0% for the first two years and 7.9% for the remainder of the loan, is secured by the senior mortgage on one manufactured housing ("MH") community and a deed of land, and is due on December 31, 2016. As of December 31, 2013, other receivables were comprised of amounts due from residents for rent and water and sewer usage of $6.9 million (net of allowance of $0.7 million), home sale proceeds of $5.7 million, insurance receivables of $2.0 million, insurance settlement of $3.7 million, rebates and other receivables of $4.6 million and two notes receivable of $4.3 million and $2.2 million.

6. Intangible Assets

Our intangible assets include in-place leases from acquisitions, capitalized costs in relation to leasing costs and franchise fees. These intangible assets are recorded within Other assets on the consolidated balance sheets. The accumulated amortization and gross carrying amounts are as follows (in thousands):

		March 31, 2014					December 31, 2013
Intangible Asset	Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
In-place leases	7 years	$	28,251	$	(9,130	)	$	26,961	$	(8,239	)
Capitalized leasing costs greater than 1 year	7 years	12,940		(5,543		)	13,359		(6,757		)
Franchise fees	15 years	770		(48		)	770		(29		)
Total		$	41,961	$	(14,721	)	$	41,090	$	(15,025	)

During 2014, in connection with our acquisitions, we purchased in-place leases valued at approximately $1.3 million with a useful life of seven years.

The aggregate net amortization expenses related to the intangible assets are as follows (in thousands):

	Three Months Ended March 31,
Intangible Asset	2014		2013
In-place leases	$	891	$	730
Capitalized leasing costs greater than 1 year	356		354
Franchise fees	31		—
Total	$	1,278	$	1,084

13

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

7.      Investment in Affiliates

Origen Financial Services, LLC (“OFS LLC”)

At March 31, 2014 and 2013, we had a 22.9% ownership interest in OFS LLC, an entity formed to originate manufactured housing installment contracts.  We have suspended equity accounting as the carrying value of our investment is zero.

Origen Financial, Inc. (“Origen”)

Through Sun OFI, LLC, a taxable REIT subsidiary, we own 5,000,000 shares of common stock of Origen which approximates an ownership interest of 19%. Although it is no longer originating or servicing loans, Origen continues to manage an existing portfolio of manufactured home loans and asset backed securities. We have suspended equity accounting for this investment as the carrying value of our investment is zero. We do, however, receive income from dividends on our shares of Origen common stock.  Per Origen's earnings release dated February 19, 2014, the dividend payment represented a return of capital. Our investment in Origen had a market value of approximately $6.7 million based on a quoted market closing price of $1.33 per share from the OTC Pink Marketplace as of March 31, 2014.

The following table sets forth certain summarized unaudited financial information for Origen (amounts in thousands):

	Three Months Ended March 31,
	(unaudited)
	2014			2013
Revenues	$	11,207		$	12,673
Expenses	(11,304		)	(14,519		)
Net loss	$	(97	)	$	(1,846	)

14

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

8.      Consolidated Variable Interest Entities

Variable interest entities ("VIEs") that are consolidated include Rudgate Village SPE, LLC, Rudgate Clinton SPE, LLC and Rudgate Clinton Estates SPE, LLC (the “Rudgate Borrowers”). We concluded that the Rudgate Borrowers qualify as VIEs as we are the primary beneficiary and hold a controlling financial interest in these entities due to our power to direct the activities that most significantly impact the economic performance of the entities, as well as our obligation to absorb the most significant losses and our rights to receive significant benefits from these entities.  As such, the transactions and accounts of these VIEs are included in the accompanying consolidated financial statements.

The following table summarizes the assets and liabilities included in our consolidated balance sheet after appropriate eliminations (in thousands):

	March 31, 2014			December 31, 2013
ASSETS
Investment property, net	$	56,427		$	56,805
Other assets	3,798			3,926
Total Assets	$	60,225		$	60,731
LIABILITIES AND STOCKHOLDERS' EQUITY
Debt	$	45,024		$	45,209
Other liabilities	7,666			6,564
Noncontrolling interests	(389		)	(537		)
Total Liabilities and Stockholders' Equity	$	52,301		$	51,236

Investment property, net and other assets related to the consolidated VIEs comprised approximately 2.9% and 3.0% of our consolidated total assets and debt and other liabilities comprised approximately 3.4% and 3.2% of our consolidated total liabilities at March 31, 2014 and December 31, 2013, respectively. Noncontrolling interest related to the consolidated VIEs comprised less than 1.0% of our consolidated total equity at March 31, 2014 and December 31, 2013.

9.      Debt and Lines of Credit

The following table sets forth certain information regarding debt (in thousands):

	Principal Outstanding				Weighted Average Years to Maturity		Weighted Average Interest Rates
	March 31, 2014		December 31, 2013		March 31, 2014	December 31, 2013	March 31, 2014		December 31, 2013
Collateralized term loans - CMBS	$	643,096	$	644,844	5.9	6.1	5.4	%	5.4	%
Collateralized term loans - FNMA	364,966		366,019		7.9	8.1	3.1	%	3.6	%
Collateralized term loans - Northwestern	98,862		—		10.6	N/A	4.2	%	N/A
Aspen and Series B-3 preferred OP Units	47,022		47,022		7.6	7.6	6.9	%	6.9	%
Secured borrowing (see Note 4)	112,208		110,510		13.6	13.5	10.6	%	10.7	%
Mortgage notes, other	142,239		143,042		5.8	6.0	4.6	%	4.6	%
Total debt	$	1,408,393	$	1,311,437	7.3	7.2	5.1	%	5.0	%

Collateralized Term Loans

In January 2014, we and four of our subsidiaries obtained four mortgage loans (each, an “Individual Loan” and, together, the “Loan”) in the aggregate amount of $99.0 million from The Northwestern Mutual Life Insurance Company (“NM”) pursuant to a Master Loan Agreement with NM. Each Individual Loan accrues interest at a rate of 4.20% and matures on February 13, 2026. We and each of the four borrowers have guaranteed the Loan. The proceeds of the Loan were used to repay a portion of our senior secured line of credit.

15

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

9.      Debt and Lines of Credit, continued

The collateralized term loans totaling $1.1 billion as of March 31, 2014, are secured by 99 properties comprised of 40,256 sites representing approximately $707.0 million of net book value.

Aspen Preferred OP Units and Series B-3 Preferred OP units

The Aspen preferred OP units are convertible into 526,212 common shares based on a conversion price of $68 per share with a redemption date of January 1, 2024. The current preferred rate is 6.5%.

Secured Borrowing

See Note 4, "Transfers of Financial Assets", for additional information regarding our collateralized receivables and secured borrowing transactions.

Mortgage Notes

The mortgage notes totaling $142.2 million as of March 31, 2014, are collateralized by 18 properties comprised of 7,868 sites representing approximately $241.9 million of net book value.

Lines of Credit

We have a senior secured revolving credit facility with Citibank, N.A. and certain other lenders in the amount of $350.0 million (the "Facility"). The Facility has a four year term ending May 15, 2017, which can be extended for one additional year at our option, subject to the satisfaction of certain conditions as defined in the credit agreement. The credit agreement also provides for, subject to the satisfaction of certain conditions, additional commitments in an amount not to exceed $250.0 million. The Facility bears interest at a floating rate based on the Eurodollar rate plus a margin that is determined based on our leverage ratio calculated in accordance with the credit agreement, which can range from 1.65% to 2.90%. Based on our calculation of the leverage ratio as of March 31, 2014, the margin was 1.65%. At March 31, 2014 and December 31, 2013, we had approximately $15.0 million and $178.1 million respectively, outstanding under the Facility. At March 31, 2014 and December 31, 2013, approximately $2.0 million and $2.7 million, respectively, of availability was used to back standby letters of credit.

The Facility is secured by a first priority lien on all of our equity interests in each entity that owns all or a portion of the properties constituting the borrowing base and collateral assignments of our senior and junior debt positions in certain borrowing base properties.

We also have a $20.0 million secured line of credit agreement collateralized by a portion of our rental home portfolio. The net book value of the rental homes pledged as security for the loan must meet or exceed 200% of the outstanding loan balance. The terms of the agreement require interest only payments for the first five years, with the remainder of the term being amortized based on a 10 year term. The interest rate is the prime rate as published in the Wall Street Journal adjusted the first day of each calendar month plus 200 basis points with a minimum rate of 5.5%. At both March 31, 2014 and December 31, 2013, the effective interest rate was 5.5%, and there was no amount outstanding.

Lastly, we have a $12.0 million manufactured home floor plan facility renewable indefinitely until our lender provides us 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 6.0%. At March 31, 2014, the effective interest rate was 7.0%.  The outstanding balance was $1.4 million and $3.3 million at March 31, 2014 and December 31, 2013, respectively.

Covenants

The most restrictive of our debt agreements place limitations on secured borrowings and contain minimum fixed charge coverage, leverage, distribution and net worth requirements. At March 31, 2014, we were in compliance with all covenants.

16

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

10.      Equity Transactions

In March 2014, we closed an underwritten registered public offering of 4,200,000 shares of common stock at a price of $44.45 per share. Subsequent to quarter end, on April 8, 2014, the underwriters exercised their greenshoe option of 630,000 shares of common stock at a price of $44.45 less the declared dividend of $0.65 per share. Net proceeds from the offering were $214.0 million after deducting underwriting discounts and the expenses related to the offering, of which $27.6 million was subsequent to the three months ended March 31, 2014. We used the net proceeds of the offering to repay borrowings outstanding under the Facility and intend to use any remaining net proceeds to fund possible future acquisitions of properties and for working capital and general corporate purposes.

In November 2004, our Board of Directors authorized us to repurchase up to 1,000,000 shares of our common stock.  We have 400,000 common shares remaining in the repurchase program.  No common shares were repurchased during the three months ended March 31, 2014 or 2013.  There is no expiration date specified for the buyback program.

Common OP unit holders can convert their common OP units into an equivalent number of shares of common stock at any time.  During the three months ended March 31, 2014 and 2013, there were no common OP units converted to shares of common stock.

Subject to certain limitations, Series A-1 preferred OP unit holders may convert their Series A-1 preferred OP units to shares of our common stock at any time. During the three months ended March 31, 2014, holders of Series A-1 preferred OP units converted 9,777 units to 23,846 shares of common stock. No such units were converted during the three months ended March 31, 2013.

Cash distributions of $0.65 per share were declared for the quarter ended March 31, 2014. On April 17, 2014, cash payments of approximately $27.6 million for aggregate distributions were made to common stockholders, common OP unitholders and restricted stockholders of record as of March 31, 2014. In addition, cash distributions of $0.4453 per share were declared on the Company's Series A cumulative redeemable preferred stock. On April 15, 2014, cash payments of approximately $1.5 million for aggregate distributions were made to Series A cumulative redeemable preferred stockholders of record as of April 2, 2014.

11.      Share-Based Compensation

In February 2014, we granted 16,000 shares of restricted stock to an executive officer and a key employee under our Sun Communities, Inc. Equity Incentive Plan. The restricted shares had a fair value of $48.01 per share and will vest as follows: February 12, 2018: 20%; February 12, 2019: 30%; February 12, 2020: 35%; February 12, 2021: 10%; February 12, 2022: 5%. The fair value was determined by using the closing share price of our common stock on the date the shares were issued.

In February 2014, we granted 14,000 shares of restricted stock to our directors under our First Amended and Restated 2004 Non-Employee Director Option Plan. The awards vest on February 12, 2017, and had a fair value of $48.01 per share. The fair value was determined by using the closing share price of our common stock on the date the shares were issued.

During the three months ended March 31, 2014, 2,253 shares of common stock were issued in connection with the exercise of stock options and the net proceeds received were $0.1 million.

The vesting requirements for 5,000 restricted shares granted to our employees were satisfied during the three months ended March 31, 2014.

17

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

12. Segment Reporting

We group our operating segments into reportable segments that provide similar products and services. Each operating segment has discrete financial information evaluated regularly by the Company's chief operating decision maker in evaluating and assessing performance. We have two reportable segments: (i) Real Property Operations and (ii) Home Sales and Rentals. The Real Property Operations segment owns, operates, and develops MH communities and RV communities and is in the business of acquiring, operating, and expanding MH and RV communities.  The Home Sales and Rentals segment offers manufactured home sales and leasing services to tenants and prospective tenants of our communities. 

Transactions between our segments are eliminated in consolidation.  Transient RV revenue is included in Real Property Operations’ revenues and is expected to approximate $28.9 million annually. This transient revenue was recognized 27.7% in the first quarter and is expected to be recognized 18.3% in the second quarter, 40.7% in the third quarter and 13.3% in the fourth quarter of 2014. In 2013, transient revenue was $17.4 million and was recognized 40.0% in the first quarter, 15.0% in the second quarter, 30.0% in the third quarter and 15.0% in the fourth quarter.

A presentation of segment financial information is summarized as follows (amounts in thousands):

	Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
	Real Property Operations			Home Sales and Home Rentals			Consolidated			Real Property Operations			Home Sales and Home Rentals			Consolidated
Revenues	$	87,497		$	19,525		$	107,022		$	79,065		$	20,217		$	99,282
Operating expenses/Cost of sales	29,198			13,099			42,297			25,702			14,079			39,781
Net operating income/Gross profit	58,299			6,426			64,725			53,363			6,138			59,501
Adjustments to arrive at net income (loss):
Ancillary, interest and other income, net	4,159			—			4,159			3,631			—			3,631
General and administrative	(7,813		)	(2,499		)	(10,312		)	(6,790		)	(2,435		)	(9,225		)
Acquisition related costs	(752		)	(8		)	(760		)	(1,042		)	—			(1,042		)
Depreciation and amortization	(18,356		)	(10,533		)	(28,889		)	(16,796		)	(8,466		)	(25,262		)
Interest	(17,588		)	(2		)	(17,590		)	(18,555		)	(309		)	(18,864		)
Interest on mandatorily redeemable debt	(803		)	—			(803		)	(809		)	—			(809		)
Distributions from affiliate	400			—			400			400			—			400
Provision for state income taxes	(69		)	—			(69		)	(59		)	—			(59		)
Net income (loss)	17,477			(6,616		)	10,861			13,343			(5,072		)	8,271
Less:  Preferred return to A-1 preferred OP units	672			—			672			573			—			573
Less: Preferred return to A-3 preferred OP units	45			—			45			30			—			30
Less:  Amounts attributable to noncontrolling interests	1,325			(541		)	784			896			(486		)	410
Net income (loss) attributable to Sun Communities, Inc.	15,435			(6,075		)	9,360			11,844			(4,586		)	7,258
Less: Series A preferred stock distributions	1,514			—			1,514			1,514			—			1,514
Net income (loss) attributable to Sun Communities, Inc. common stockholders	$	13,921		$	(6,075	)	$	7,846		$	10,330		$	(4,586	)	$	5,744

18

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

12. Segment Reporting, continued

	March 31, 2014						December 31, 2013
	Real Property Operations		Home Sales and Home Rentals		Consolidated		Real Property Operations		Home Sales and Home Rentals			Consolidated
Identifiable assets:
Investment property, net	$	1,553,798	$	310,276	$	1,864,074	$	1,460,628	$	294,424		$	1,755,052
Cash and cash equivalents	9,227		78		9,305		5,336		(583		)	4,753
Inventory of manufactured homes	—		6,541		6,541		—		5,810			5,810
Notes and other receivables	154,227		8,079		162,306		154,524		10,161			164,685
Other assets	61,186		4,820		66,006		64,342		4,594			68,936
Total assets	$	1,778,438	$	329,794	$	2,108,232	$	1,684,830	$	314,406		$	1,999,236

13.    Income Taxes

We have elected to be taxed as a real estate investment trust (“REIT”) as defined under Section 856(c) of the Internal Revenue Code of 1986 (“Code”), as amended. In order for us to qualify as a REIT, at least ninety-five percent (95%) of our gross income in any year must be derived from qualifying sources. In addition, a REIT must distribute at least ninety percent (90%) of its REIT ordinary taxable income to its stockholders.

Qualification as a REIT involves the satisfaction of numerous requirements (some on an annual and quarterly basis) established under highly technical and complex Code provisions for which there are only 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 March 31, 2014.

As a REIT, we generally will not be subject to 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 (including any applicable alternative minimum tax). Even if we qualify as a REIT, we may be subject to certain state and local income taxes and to U.S. federal income and excise taxes on our undistributed income.

SHS, our taxable REIT subsidiary, is subject to U.S. federal income taxes. Our deferred tax assets and liabilities reflect the impact of temporary differences between the amounts of assets and liabilities for financial reporting purposes and the bases 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 and depreciation. A federal deferred tax asset of $1.0 million is included in other assets in our consolidated balance sheets as of March 31, 2014 and December 31, 2013.

We had no unrecognized tax benefits as of March 31, 2014 and 2013. We expect no significant increases or decreases in unrecognized tax benefits due to changes in tax positions within one year of March 31, 2014.

We classify certain state taxes as income taxes for financial reporting purposes.  We record Texas Margin Tax as income tax in our financial statements, and we recorded a provision for state income taxes of approximately $0.1 million for the three months ended March 31, 2014 and 2013.

14.    Earnings Per Share

We have outstanding stock options and unvested restricted shares, and our Operating Partnership has common OP units, convertible A-1 preferred OP units, convertible A-3 preferred OP units and Aspen preferred OP Units, which if converted or exercised, may impact dilution. 

Computations of basic and diluted earnings per share from continuing operations were as follows (in thousands, except per share data):

	Three Months Ended March 31,
Numerator	2014		2013
Net income attributable to common stockholders	$	7,846	$	5,744
Denominator
Weighted average common shares outstanding	36,495		30,427
Weighted average unvested restricted stock outstanding	645		347
Basic weighted average common shares and unvested restricted stock outstanding	37,140		30,774
Add: dilutive securities	14		15
Diluted weighted average common shares and securities	37,154		30,789
Earnings per share available to common stockholders:
Basic	$	0.21	$	0.19
Diluted	$	0.21	$	0.19

We excluded certain securities from the computation of diluted earnings per share because the inclusion of these securities would have been anti-dilutive for the periods presented.  The following table presents the number of outstanding potentially dilutive securities that were excluded from the computation of diluted earnings per share for the three months ended March 31, 2014 and 2013 (amounts in thousands):

19

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

	Three Months Ended March 31,
	2014	2013
Common OP units	2,069	2,069
Series A-1 preferred OP units	446	455
Series A-3 preferred OP units	40	40
Aspen preferred OP units	1,325	1,325
Total securities	3,880	3,889

20

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

15. Derivative Instruments and Hedging Activities

Our objective in using interest rate derivatives is to manage exposure to interest rate movements thereby minimizing the effect of interest rate changes and the effect it could have on future cash flows. Interest rate swaps and caps are used to accomplish this objective. We require hedging derivative instruments to be highly effective in reducing the risk exposure that they are designated to hedge. We formally designate any instrument that meets these hedging criteria as a hedge at the inception of the derivative contract. We do not enter into derivative instruments for speculative purposes.

The following table provides the terms of our interestrate derivative contracts that were in effect as of March 31, 2014:

Type	Purpose	Effective Date	Maturity Date	Notional  (in millions)		Based on	Variable Rate	Fixed Rate	Spread	Effective Fixed Rate
Cap	Cap Floating Rate	4/1/2012	4/1/2015	$	152.4	3 Month LIBOR	0.2466%	11.2650%	—%	N/A
Cap	Cap Floating Rate	10/3/2011	10/3/2016	$	10.0	3 Month LIBOR	0.2466%	11.0200%	—%	N/A

In January 2014, our interest rate swap agreement with a notional amount of $20.0 million expired. We did not enter into a new interest rate swap agreement.

In accordance with ASC Topic 815, Derivatives and Hedging, we have recorded the fair value of our derivative instruments designated as cash flow hedges on the balance sheet. See Note 16 for information on the determination of fair value for the derivative instruments.  The following table summarizes the fair value of derivative instruments included in our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in thousands):

	Asset Derivatives					Liability Derivatives
	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments		March 31, 2014		December 31, 2013			March 31, 2014		December 31, 2013
Interest rate swaps and cap agreement	Other assets	$	—	$	—	Other liabilities	$	—	$	97
Total derivatives designated as hedging instruments		$	—	$	—		$	—	$	97

These valuation adjustments will only be realized under certain situations. For example, if we terminate contracts prior to maturity or if derivatives fail to qualify for hedge accounting, we would need to amortize amounts currently included in accumulated other comprehensive income into interest expense over the terms of the derivative contracts.  We did not terminate our swap prior to maturity, and it did not fail to qualify for hedge accounting; therefore, the net of valuation adjustments through the maturity date approximated zero.

Our hedges were highly effective and had minimal effect on income.  The following tables summarize the impact of derivative instruments for the three months ended March 31, 2014 and 2013 as recorded in the consolidated statements of operations (in thousands):

Derivatives in Cash Flow Hedging	Amount of Gain or (Loss) Recognized in OCI (Effective Portion)				Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)
	Three Months Ended March 31,					Three Months Ended March 31,
	2014		2013			2014		2013
Interest rate swaps and cap agreement	$	97	$	92	Interest expense	$	—	$	—
Total	$	97	$	92	Total	$	—	$	—

Our financial derivative instruments are designated and qualify as cash flow hedges and the effective portion of the gain or loss on such hedges are reported as a component of accumulated other comprehensive income in our consolidated balance sheets.

21

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

15. Derivative Instruments and Hedging Activities, continued

To the extent that the hedging relationship is not effective or does not qualify as a cash flow hedge, the ineffective portion is recorded in interest expense. Hedges that received designated hedge accounting treatment are evaluated for effectiveness at the time that they are designated as well as through the hedging period. No gain or loss was recognized in the consolidated financial

statements related to hedge ineffectiveness or to amounts excluded from effectiveness testing on our cash flow hedge during the three months ended March 31, 2014 or 2013.

Certain of our derivative instruments contain provisions that require us to provide ongoing collateralization on derivative instruments in a liability position.  As of December 31, 2013, we had collateral deposits recorded in other assets of approximately $0.7 million. As of March 31, 2014, we had no such deposits recorded.

16.    Fair Value of Financial Instruments

Our financial instruments consist primarily of cash and cash equivalents, accounts and notes receivable, accounts payable, derivative instruments, and debt.

ASC Topic 820, Fair Value Measurements and Disclosures, establishes a fair value hierarchy that requires the use of observable market data, when available, and prioritizes the inputs to valuation techniques used to measure fair value in the following categories:

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 observable inputs and significant value drivers are observable in active markets.

Level 3—Model derived valuations in which one or more significant inputs or significant value drivers are unobservable, including assumptions developed by us.

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 to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value.

Derivative Instruments

The derivative instruments held by us are interest rate swap and cap agreements for which quoted market prices are indirectly available. For those derivatives, we use model-derived valuations in which all observable inputs and significant value drivers are observable in active markets provided by brokers or dealers to determine the fair values of derivative instruments on a recurring basis (Level 2). See Note 15 for Derivative Instruments.

Installment Notes on Manufactured Homes

The net carrying value of the installment notes on manufactured homes estimates the fair value as the interest rates in the portfolio are comparable to current prevailing market rates (Level 2). See Note 5 for Installment Notes.

Long Term Debt and Lines of Credit

The fair value of long term debt (excluding the secured borrowing) is based on the estimates of management and on rates currently quoted and rates currently prevailing for comparable loans and instruments of comparable maturities (Level 2). See Note 9 for Long-Term Debt and Lines of Credit.

Collateralized Receivables and Secured Borrowing

The fair value of these financial instruments offset each other as our collateralized receivables represent a transfer of financial assets and the cash proceeds received from these transactions have been classified as a secured borrowing in the consolidated balance sheets. The net carrying value of the collateralized receivables estimates the fair value as the interest rates in the portfolio are comparable to current prevailing market rates (Level 2). See Note 4 for Collateralized Receivables and Secured Borrowing.

Other Financial Instruments

The carrying values of cash and cash equivalents, accounts receivable, and accounts payable approximate their fair market values due to the short-term nature of these instruments.

22

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

16.   Fair Value of Financial Instruments, continued

The table below sets forth our financial assets and liabilities that required disclosure of their fair values on a recurring basis and presents the carrying values and fair values as of March 31, 2014 and December 31, 2013 that were measured using the valuation techniques described above. The table excludes other financial instruments such as cash and cash equivalents, accounts receivable, and accounts payable because the carrying values associated with these instruments approximate fair value since their maturities are less than one year.

	March 31, 2014				December 31, 2013
Financial assets	Carrying Value		Fair Value		Carrying Value		Fair Value
Installment notes on manufactured homes, net	$	24,385	$	24,385	$	25,471	$	25,471
Collateralized receivables, net	$	111,442	$	111,442	$	109,821	$	109,821
Financial liabilities
Derivative instruments	$	—	$	—	$	97	$	97
Debt (excluding secured borrowing)	$	1,296,185	$	1,308,413	$	1,200,927	$	1,211,821
Secured borrowing	$	112,208	$	112,208	$	110,510	$	110,510
Lines of credit	$	16,441	$	16,441	$	181,383	$	181,383

The derivative instruments are the only financial liabilities that were required to be carried at fair value in the consolidated balance sheets for the periods indicated, and we have no financial assets that are required to be carried at fair value.

17.    Recent Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-08, "Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity" ("ASU 2014-08"). ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The guidance does not change the presentation requirements for discontinued operations in the statement where net income is presented. ASU 2014-08 also requires the reclassification of assets and liabilities of a discontinued operation in the statement of financial position for all prior periods presented. The standard expands the disclosures for discontinued operations and requires new disclosures related to individually material disposals that do not meet the definition of a discontinued operation, an entity's continuing involvement with a discontinued operation following the disposal date and retained equity method investments in a discontinued operation. ASU 2014-08 is effective for annual periods beginning on or after December 15, 2014 and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issue. The Company has chosen to early adopt this pronouncement and will apply the guidance to future applicable disposals or discontinued operations, if any.

23

SUN COMMUNITIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

18.   Commitments and Contingencies

On June 4, 2010, we settled all of the claims arising out of the litigation filed in 2004 by TJ Holdings, LLC in the Superior Court of Guilford County, North Carolina and the associated arbitration proceeding commenced by TJ Holdings in Southfield, Michigan. Under the terms of the settlement agreement, in which neither party admitted any liability whatsoever, we paid TJ Holdings $360,000. In addition, pursuant to this settlement, TJ Holdings’ percentage ownership interest in Sun/Forest, LLC will be increased on a one time basis, in the event of a sale or refinance of all of the SunChamp Properties, to between 9.03% and 28.99% depending on our average closing stock price as reported by the NYSE during the 30 days preceding the sale or refinance of all the SunChamp Properties. Once this percentage ownership interest has been adjusted, there will be no further adjustments from subsequent sales or refinances of the SunChamp Properties. The likelihood of a sale or refinancing of all of the SunChamp properties is not probable as these properties continue to see growth potential nor do we have a need to refinance all of the properties, so we do not expect it to have a material adverse impact on our results of operations or financial condition.

We are involved in various other 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.

19. Subsequent Event

We have evaluated our financial statements for subsequent events through the date that this Form 10-Q was issued.

In April 2014, we acquired Saco/Old Orchard Beach KOA RV resort with 127 sites located in Saco, Maine, for a purchase price of approximately $4.4 million. The initial accounting and purchase price allocation for this business acquisition will be completed during the second quarter of 2014.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of the consolidated financial condition and results of operations should be read in conjunction with the Consolidated Financial Statements and Notes thereto, along with our 2013 Annual Report. Capitalized terms are used as defined elsewhere in this Form 10-Q.

OVERVIEW

We are a fully integrated, self-administered and self-managed REIT. We own, operate, and develop MH and RV communities concentrated in the midwestern, southern, southeastern and northeastern United States. As of March 31, 2014, we owned and operated a portfolio of 192 developed properties located in 27 states, including 150 MH communities, 31 RV communities, and 11 properties containing both MH and RV sites.

We have been in the business of acquiring, operating, developing and expanding MH and RV communities since 1975. We lease individual sites with utility access for placement of manufactured homes and RVs to our customers. We are also engaged through SHS in the marketing, selling, and leasing of new and pre-owned homes to current and future residents in our communities. The operations of SHS support and enhance our occupancy levels, property performance, and cash flows.

SIGNIFICANT ACCOUNTING POLICIES

We have identified significant accounting policies that, as a result of the judgments, uncertainties, and complexities of the underlying accounting standards and operations involved could result in material changes to our financial condition or results of operations under different conditions or using different assumptions. Details regarding significant accounting policies are described fully in our 2013 Annual Report.

SUPPLEMENTAL MEASURES

In addition to the results reported in accordance with GAAP, we have provided information regarding Net Operating Income (“NOI”) in the following tables. NOI is derived from revenues minus property operating and maintenance expenses and real estate taxes. We use NOI as the primary basis to evaluate the performance of our operations. A reconciliation of NOI to net income attributable to Sun Communities, Inc. is included in “Results of Operations” below.

We believe that NOI is helpful to investors and analysts as a measure of operating performance because it is an indicator of the return on property investment and provides a method of comparing property performance over time. We use NOI as a key management tool when evaluating performance and growth of particular properties and/or groups of properties. The principal limitation of NOI is that it excludes depreciation, amortization, interest expense, and non-property specific expenses such as general and administrative expenses, all of which are significant costs, and therefore, NOI is a measure of the operating performance of our properties rather than of the Company overall.  We believe that these costs included in net income often have no effect on the market value of our property and therefore limit its use as a performance measure. In addition, such expenses are often incurred at a parent company level and therefore are not necessarily linked to the performance of a real estate asset.

NOI should not be considered a substitute for the reported results prepared in accordance with GAAP. NOI should not be considered as an alternative to net income as an indicator of our financial performance, or to cash flows as a measure of liquidity; nor is it indicative of funds available for our cash needs, including our ability to make cash distributions.  NOI, as determined and presented by us, may not be comparable to related or similarly titled measures reported by other companies.

We also provide information regarding Funds From Operations (“FFO”).  We consider FFO an appropriate supplemental measure of the financial performance of an equity REIT. Under the National Association of Real Estate Investment Trusts (“NAREIT”) definition, FFO represents net income, excluding extraordinary items (as defined under GAAP), and gain (loss) on sales of depreciable property, plus real estate related depreciation and amortization (excluding amortization of financing costs), and after adjustments for unconsolidated partnerships and joint ventures. Management also uses FFO excluding certain items, a non-GAAP financial measure, which excludes certain gain and loss items that management considers unrelated to the operational and financial performance of our core business. We believe that this provides investors with another financial measure of our operating performance that is more comparable when evaluating period over period results. A discussion of FFO, FFO excluding certain items, a reconciliation of FFO to net income, and FFO to FFO excluding certain items are included in the presentation of FFO in following our “Results of Operations".

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RESULTS OF OPERATIONS

We report operating results under two segments: Real Property Operations and Home Sales and Rentals.  The Real Property Operations segment owns, operates, and develops MH communities and RV communities concentrated in the midwestern, southern, southeastern and northeastern United States and is in the business of acquiring, operating, and expanding MH and RV communities.  The Home Sales and Rentals segment offers manufactured home sales and leasing services to tenants and prospective tenants of our communities.  We evaluate segment operating performance based on NOI and gross profit.

COMPARISON OF THE THREE MONTHS ENDED MARCH 31, 2014 AND 2013

The following table summarizes our consolidated financial results for the three months ended March 31, 2014 and 2013 (in thousands):

	Three Months Ended March 31,
	2014			2013
Real Property NOI	$	58,299		$	53,363
Rental Program NOI	17,253			13,863
Home Sales NOI/Gross Profit	2,275			3,040
Site rent from Rental Program (included in Real Property NOI)	(13,102		)	(10,765		)
NOI/Gross profit	64,725			59,501
Adjustments to arrive at net income:
Other revenues	4,159			3,631
General and administrative	(10,312		)	(9,225		)
Acquisition related costs	(760		)	(1,042		)
Depreciation and amortization	(28,889		)	(25,262		)
Interest expense	(18,393		)	(19,673		)
Provision for state income taxes	(69		)	(59		)
Distributions from affiliate	400			400
Net income	10,861			8,271
Less:  Preferred return to A-1 preferred OP units	672			573
Less: Preferred return to A-3 preferred OP units	45			30
Less:  Amounts attributable to noncontrolling interests	784			410
Net income attributable to Sun Communities, Inc.	9,360			7,258
Less: Series A Preferred Stock Distributions	1,514			1,514
Net income attributable to Sun Communities, Inc. common stockholders	$	7,846		$	5,744

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REAL PROPERTY OPERATIONS – TOTAL PORTFOLIO

The following tables reflect certain financial and other information for our Total Portfolio as of and for the three months ended March 31, 2014 and 2013:

	Three Months Ended March 31,
Financial Information (in thousands)	2014		2013		Change		% Change
Income from Real Property	$	87,497	$	79,065	$	8,432	10.7	%
Property operating expenses:
Payroll and benefits	6,501		5,983		518		8.7	%
Legal, taxes & insurance	1,338		1,206		132		10.9	%
Utilities	10,580		9,103		1,477		16.2	%
Supplies and repair	2,316		1,704		612		35.9	%
Other	2,454		1,950		504		25.8	%
Real estate taxes	6,009		5,756		253		4.4	%
Property operating expenses	29,198		25,702		3,496		13.6	%
Real Property NOI	$	58,299	$	53,363	$	4,936	9.2	%

	As of March 31,
Other Information	2014			2013			Change
Number of properties	192			183			9
Developed sites	71,891			67,431			4,460
Occupied sites (1) (2)	57,144			53,387			3,757
Occupancy % (1)	90.2		%	88.6		%	1.6		%
Weighted average monthly rent per site - MH	$	448		$	436		$	12
Weighted average monthly rent per site - RV (3)	$	384		$	384		$	—
Weighted average monthly rent per site - Total	$	439		$	431		$	8
Sites available for development	6,166			6,969			(803		)

⁽¹⁾    Occupied sites and occupancy % include MH and annual RV sites, and exclude transient RV sites.

⁽²⁾ Occupied sites include 1,125 sites acquired in 2014 and 1,619 sites acquired in 2013.

⁽³⁾  Weighted average rent pertains to annual RV sites and excludes transient RV sites.

The 9.2% increase in Real Property NOI consists of $1.4 million from newly acquired properties and $3.5 million from same site properties as detailed below.

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REAL PROPERTY OPERATIONS – SAME SITE

A key management tool used when evaluating performance and growth of our properties is a comparison of Same Site communities. Same Site communities consist of properties owned and operated for the same period in both years for the three months ended March 31, 2014 and 2013.  The Same Site data may change from time-to-time depending on acquisitions, dispositions, management discretion, significant transactions, or unique situations.

In order to evaluate the growth of the Same Site communities, management has classified certain items differently than our GAAP statements. The reclassification difference between our GAAP statements and our Same Site portfolio is the reclassification of water and sewer revenues from income from real property to utilities.  A significant portion of our utility charges are re-billed to our residents. We reclassify these amounts to reflect the utility expenses associated with our Same Site portfolio net of recovery.

The following tables reflect certain financial and other information for our Same Site communities as of and for the three months ended March 31, 2014 and 2013:

	Three Months Ended March 31,
Financial Information (in thousands)	2014		2013		Change			% Change
Income from Real Property	$	78,279	$	73,308	$	4,971		6.8	%
Property operating expenses:
Payroll and benefits	5,804		5,774		30			0.5	%
Legal, taxes & insurance	1,261		1,175		86			7.3	%
Utilities	4,998		4,390		608			13.8	%
Supplies and repair	2,213		1,687		526			31.2	%
Other	2,124		1,890		234			12.4	%
Real estate taxes	5,654		5,663		(9		)	(0.2	)%
Property operating expenses	22,054		20,579		1,475			7.2	%
Real Property NOI	$	56,225	$	52,729	$	3,496		6.6	%

	As of March 31,
Other Information	2014			2013			Change
Number of properties	173			173			—
Developed sites	64,358			63,914			444
Occupied sites (1)	53,480			51,779			1,701
Occupancy % (1) (2)	89.9		%	88.6		%	1.3		%
Weighted average monthly rent per site - MH	$	449		$	436		$	13
Weighted average monthly rent per site - RV (3)	$	407		$	401		$	6
Weighted average monthly rent per site - Total	$	445		$	432		$	13
Sites available for development	6,166			6,969			(803		)

⁽¹⁾    Occupied sites and occupancy % include MH and annual RV sites, and exclude transient RV sites.

⁽²⁾ Occupancy % excludes recently completed but vacant expansion sites.

⁽³⁾  Weighted average rent pertains to annual RV sites and excludes transient RV sites.

The 6.6% growth in NOI is primarily due to increased revenues of $5.0 million partially offset by a $1.5 million increase in expenses.

Income from real property revenue consists of MH and RV site rent, and miscellaneous other property revenues.  The 6.8% growth in income from real property was due to a combination of factors. Revenue from our MH and RV portfolio increased $4.5 million due to the increased number of occupied home sites and weighted average rental rate increases at our MH communities of 3.0% and at our RV communities of 1.5%.  Additionally, other revenues increased by $0.5 million primarily due to increases in late fees and non-sufficient funds charges, cable television royalties, and miscellaneous other charges and fee income.

Property operating expenses increased approximately $1.5 million, or 7.2%, compared to 2013. Of that increase, utility expense increased $0.6 million primarily as a result of increased gas and electric costs resulting from extreme temperatures experienced in certain areas of the country. Supplies and repair expenses increased $0.5 million also due to weather related maintenance and repair expenses including snow removal, community water systems repairs, vehicle maintenance and gasoline. Other expenses increased $0.2 million primarily due to increased software maintenance expense, bank service and credit card processing charges

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and bad debt expense. Increases in expenses were also experienced for lawn services, community electric repairs and general community maintenance.

HOME RENTALS AND SALES

We acquire pre-owned and repossessed manufactured homes generally located within our communities from lenders and dealers at substantial discounts.  We lease or sell these value priced homes to current and prospective residents.  We also purchase new homes to lease and sell to current and prospective residents.  

The following table reflects certain financial and other information for our Rental Program for the three months ended March 31, 2014 and 2013 (in thousands, except for statistical information):

	Three Months Ended March 31,
Financial Information	2014		2013		Change			% Change
Rental home revenue	$	9,402	$	7,361	$	2,041		27.7	%
Site rent from Rental Program (1)	13,102		10,765		2,337			21.7	%
Rental Program revenue	22,504		18,126		4,378			24.2	%
Expenses
Commissions	601		639		(38		)	(5.9	)%
Repairs and refurbishment	2,405		1,762		643			36.5	%
Taxes and insurance	1,368		1,086		282			26.0	%
Marketing and other	877		776		101			13.0	%
Rental Program operating and maintenance	5,251		4,263		988			23.2	%
Rental Program NOI	$	17,253	$	13,863	$	3,390		24.5	%
Other Information
Number of occupied rentals, end of period	10,073		8,584		1,489			17.3	%
Investment in occupied rental homes	$	371,360	$	306,211	$	65,149		21.3	%
Number of sold rental homes	134		236		(102		)	(43.2	)%
Weighted average monthly rental rate	$	801	$	793	$	8		1.0	%

⁽¹⁾ The renter’s monthly payment includes the site rent and an amount attributable to the leasing of the home. The site rent is reflected in the Real Property Operations segment. For purposes of management analysis, the site rent is included in the Rental Program revenue to evaluate the incremental revenue gains associated with implementation of the Rental Program, and assess the overall growth and performance of Rental Program and financial impact to our operations.

The 24.5% growth in NOI is primarily a result of the increased number of residents participating in the Rental Program and from increased monthly rental rates as indicated in the table above.

The increase in operating and maintenance expenses of $1.0 million was primarily a result of increased repair and refurbishment expense of $0.6 million, of which approximately $0.4 million was due to increased refurbishment costs related to occupant turnover and $0.2 million was due to increased repair costs on occupied home rentals. In addition, personal property and use taxes increased $0.3 million primarily due to the additional number of homes in the Rental Program and bad debt expense increased approximately $0.1 million.

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The following table reflects certain financial and statistical information for our Home Sales Program for the three months ended March 31, 2014 and 2013 (in thousands, except for statistical information):

	Three Months Ended March 31,
Financial Information	2014			2013			Change			% Change
New home sales	$	2,163		$	1,076		$	1,087		101.0	%
Pre-owned home sales	7,960			11,780			(3,820		)	(32.4	)%
Revenue from homes sales	10,123			12,856			(2,733		)	(21.3	)%
New home cost of sales	1,834			915			919			100.4	%
Pre-owned home cost of sales	6,014			8,901			(2,887		)	(32.4	)%
Cost of home sales	7,848			9,816			(1,968		)	(20.0	)%
NOI / Gross profit	$	2,275		$	3,040		$	(765	)	(25.2	)%
Gross profit – new homes	$	329		$	161		$	168		104.3	%
Gross margin % – new homes	15.2		%	15.0		%	0.2		%
Gross profit – pre-owned homes	$	1,946		$	2,879		$	(933	)	(32.4	)%
Gross margin % – pre-owned homes	24.4		%	24.4		%	—		%
Statistical Information
Home sales volume:
New home sales	27			14			13			92.9	%
Pre-owned home sales	342			452			(110		)	(24.3	)%
Total homes sold	369			466			(97		)	(20.8	)%

Home Sales NOI/Gross profit increased $0.2 million on new home sales and decreased $0.9 million on pre-owned home sales. The decreased profits are due to the decrease in the volume of pre-owned home sales.

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OTHER INCOME STATEMENT ITEMS

The following table summarizes other income and expenses for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	Three Months Ended March 31,
	2014		2013		Change			% Change
Ancillary revenues, net	$	518	$	472	$	46		9.7	%
Interest income	$	3,354	$	2,963	$	391		13.2	%
Brokerage commissions and other revenues	$	287	$	196	$	91		46.4	%
Real property general and administrative	$	7,813	$	6,790	$	1,023		15.1	%
Home sales and rentals general and administrative	$	2,499	$	2,435	$	64		2.6	%
Acquisition related costs	$	760	$	1,042	$	(282	)	(27.1	)%
Depreciation and amortization	$	28,889	$	25,262	$	3,627		14.4	%
Interest expense	$	18,393	$	19,673	$	(1,280	)	(6.5	)%
Distributions from affiliates	$	400	$	400	$	—		—	%

Interest income increased primarily due to increased collateralized receivables of $0.3 million.

Real property general and administrative costs increased primarily due to increased deferred compensation expense of $0.6 million due to awards of restricted stock, increased salaries, wages and bonus expense of $0.2 million, increased legal expense of $0.1 million and increased other expenses of $0.3 million primarily related to increased consulting fees and software support and maintenance expense, partially offset by decreased corporate insurance expense of $0.2 million.

Depreciation and amortization costs increased as a result of additional depreciation and amortization of $2.0 million primarily related to our newly acquired properties, $1.3 million related to depreciation on investment property for use in our Rental Program, $0.5 million related to depreciation on homes in our vacation rental program and $0.4 million related to the amortization of in-place leases and promotions, partially offset by a reduction of approximately $0.6 million from the write off of the remaining net book value for assets replaced during the period.

Interest expense on debt, including interest on mandatorily redeemable debt, decreased primarily due to a decrease of $1.1 million in our mortgage interest paid and a decrease of $0.4 million in amortized financing costs, partially offset by an increase of $0.3 million associated with our secured borrowing arrangements.

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FUNDS FROM OPERATIONS

We provide information regarding FFO as a supplemental measure of operating performance.  FFO is defined by NAREIT as net income (loss) (computed in accordance GAAP), excluding gains (or losses) from sales of depreciable operating property, plus real estate-related depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures. Due to the variety among owners of identical assets in similar condition (based on historical cost accounting and useful life estimates), we believe excluding gains and losses related to sales of previously depreciated operating real estate assets, impairment and excluding real estate asset depreciation and amortization, provides a better indicator of our operating performance.  FFO is a useful supplemental measure of our operating performance because it reflects the impact to operations from trends in occupancy rates, rental rates, and operating costs, providing perspective not readily apparent from net income (loss).  Management believes that the use of FFO has been beneficial in improving the understanding of operating results of REITs among the investing public and making comparisons of REIT operating results more meaningful. Management, the investment community, and banking institutions routinely use FFO, together with other measures, to measure operating performance in our industry. Further, management uses FFO for planning and forecasting future periods.

Because FFO excludes significant economic components of net income (loss) including depreciation and amortization, FFO should be used as an adjunct to net income (loss) and not as an alternative to net income (loss). The principal limitation of FFO is that it does not represent cash flow from operations as defined by GAAP and is a supplemental measure of performance that does not replace net income (loss) as a measure of performance or net cash provided by operating activities as a measure of liquidity. In addition, FFO is not intended as a measure of a REIT’s ability to meet debt principal repayments and other cash requirements, nor as a measure of working capital. FFO only provides investors with an additional performance measure. FFO is compiled in accordance with its interpretation of standards established by NAREIT, which may not be comparable to FFO reported by other REITs that do not define the term in accordance with the current NAREIT definition or that interpret the current NAREIT definition differently.

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The following table reconciles net income to FFO data for diluted purposes for the three months ended March 31, 2014 and 2013 (in thousands, except per share amounts):

	Three Months Ended March 31,
	2014			2013
Net income attributable to Sun Communities, Inc. common stockholders	$	7,846		$	5,744
Adjustments:
Preferred return to Series A-1 preferred OP units	672			573
Preferred return to Series A-3 preferred OP units	45			30
Amounts attributable to noncontrolling interests	784			410
Depreciation and amortization	29,168			25,442
Gain on disposition of assets	(1,014		)	(1,513		)
Funds from operations ("FFO")	37,501			30,686
Adjustments:
Acquisition related costs	760			1,042
FFO excluding certain items	$	38,261		$	31,728
Weighted average common shares outstanding:	36,495			30,427
Add:
Common OP units	2,069			2,069
Restricted stock	645			347
Common stock issuable upon conversion of Series A-1 preferred OP units	1,107			1,111
Common stock issuable upon conversion of Series A-3 preferred OP units	75			43
Common stock issuable upon conversion of stock options	14			15
Weighted average common shares outstanding - fully diluted	40,405			34,012
FFO per share - fully diluted	$	0.93		$	0.90
FFO per share excluding certain items - fully diluted	$	0.95		$	0.93

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LIQUIDITY AND CAPITAL RESOURCES

Our principal liquidity demands have historically been, and are expected to continue to be, distributions to our stockholders and the unitholders of the Operating Partnership, capital improvement of properties, the purchase of new and pre-owned homes, property acquisitions, development and expansion of properties, and debt repayment.

Subject to market conditions, we intend to continue to look for opportunities to expand our development pipeline and acquire existing communities. We also intend to continue to strengthen our capital and liquidity positions by continuing to focus on our core fundamentals, which are generating positive cash flows from operations, maintaining appropriate debt levels and leverage ratios, and controlling overhead costs. We intend to meet our liquidity requirements through available cash balances, cash flows generated from operations, draws on our secured credit facility, and the use of debt and equity offerings under our automatic shelf registration statement.

During the three months ended March 31, 2014, we acquired four RV communities with approximately 1,900 sites. See Note 2 to our financial statements for details on the 2014 acquisitions and Note 9 to our financial statements for related debt transactions.  We will continue to evaluate acquisition opportunities that meet our criteria for acquisition. Should additional investment opportunities arise in 2014, we intend to finance the acquisitions through secured financing, draws on our credit facilities, the assumption of existing debt on the properties and the issuance of certain equity securities.

During the three months ended March 31, 2014, we invested $11.5 million in the acquisition of homes intended for the Rental Program net of proceeds from third party financing from home sales.  Expenditures for 2014 will be dependent upon the condition of the markets for repossessions and new home sales, as well as rental homes. We finance new home purchases with a $12.0 million floor plan facility. Our ability to purchase homes for sale or rent may be limited by cash received from third party financing of our home sales, available floor plan financing and working capital available on our secured lines of credit.

Our cash flow activities are summarized as follows (in thousands):

	Three Months Ended March 31,
	2014			2013
Net Cash Provided by Operating Activities	$	44,674		$	27,633
Net Cash Used in Investing Activities	$	(138,668	)	$	(142,339	)
Net Cash Provided by Financing Activities	$	98,546		$	146,243

Operating Activities

Cash and cash equivalents increased by $4.6 million from $4.8 million as of December 31, 2013, to $9.3 million as of March 31, 2014. Net cash provided by operating activities increased by $17.0 million from $27.6 million for the three months ended March 31, 2013 to $44.7 million for the three months ended March 31, 2014.

Our net cash flows provided by operating activities from continuing operations may be adversely impacted by, among other things: (a) the market and economic conditions in our current markets generally, and specifically in metropolitan areas of our current markets; (b) lower occupancy and rental rates of our properties; (c) increased operating costs, such as wage and benefit costs, insurance premiums, real estate taxes and utilities, that cannot be passed on to our tenants; (d) decreased sales of manufactured homes and (e) current volatility in economic conditions and the financial markets.  See “Risk Factors” in Part I, Item 1A of our 2013 Annual Report.

Investing Activities

Net cash used in investing activities was $138.7 million for the three months ended March 31, 2014, compared to $142.3 million for the three months ended March 31, 2013. Net cash used in investing activities during 2013 includes an investment in a note receivable, which was extinguished in a net cash settlement during the acquisition of the properties upon which which the note receivable was attributable to. No such investment was made during the three months ended March 31, 2014, which offsets the increased acquisitions of properties and increased issuance of notes and other receivables. Also contributing to the decrease is decreased investment in properties and increased proceeds related to the disposition of assets and depreciable homes, net, and the disposition of land.

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Financing Activities

Net cash provided by financing activities was $98.5 million for the three months ended March 31, 2014, compared to $146.2 million for the three months ended March 31, 2013. The decrease is primarily related to decreased net proceeds received from the issuance of additional shares of common stock, increased payments on our lines of credit and increased distributions to our stockholders and OP unit holders, partially offset by increased net borrowings on other debt.

Financial Flexibility

We have a senior secured revolving credit facility (the "Facility") with a maximum borrowing capacity of $350.0 million, subject to certain borrowing base calculations, and a built in accordion allowing for up to $250.0 million in additional borrowings. As of March 31, 2014 and December 31, 2013, we had approximately $15.0 million and $178.1 million outstanding under the Facility, respectively. Borrowings under the Facility bear interest at a floating rate based on the Eurodollar rate plus a margin that is determined based on our leverage ratio calculated in accordance with the Facility, which can range from 1.65% to 2.90%.  During 2014, the highest balance on the Facility was $247.3 million.  The borrowings under the Facility mature May 15, 2017, which date can be extended for one additional year at our option, subject to the satisfaction of certain conditions as defined in the credit agreement. Although the Facility is a committed facility, the financial failure of one or more of the participating financial institutions may reduce the amount of credit available to us.

Our 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 it does reduce the borrowing amount available. At March 31, 2014, we had outstanding letters of credit to back standby letters of credit totaling approximately $2.0 million, leaving approximately $333.0 million available under our secured line of credit.

Pursuant to the terms of the Facility, we are subject to various financial and other covenants. We are currently in compliance with these covenants. The most restrictive financial covenants for the Facility are as follows:

Covenant	Must Be	As of March 31, 2014
Maximum Leverage Ratio	<68.5%	42.0%
Minimum Fixed Charge Coverage Ratio	>1.40	2.28
Minimum Tangible Net Worth	>$990,159	$1,316,598
Maximum Dividend Payout Ratio	<95.0%	71.7%

Market and Economic Conditions

While the U.S. continues to see moderate signs of recovery including improvements in job growth, motor vehicle sales and the housing market, the improvements are somewhat inconsistent. The Federal Reserve’s tapering of monetary stimulus which began in December 2013, and which has long suppressed long term interest rates, brings the risk of rising interest rates to the forefront which could move investor sentiment away from the real estate sector. The change in monetary policy could also be perceived as the precursor to real economic improvement which could bode well for real estate operations. Rising interest rates in the U.S. as well as the slowing of quantitative easing by the Federal Reserve has also had a significant impact on global economies which were are also challenged by political and financial instability. Continued economic uncertainty, both nationally and internationally, causes increased volatility in investor confidence thereby creating similar volatility in the availability of both debt and equity capital. If such volatility is experienced in future periods, our industry, business and results of operations may be adversely impacted.

We anticipate meeting our long-term liquidity requirements, such as scheduled debt maturities, large property acquisitions, and Operating Partnership unit redemptions through the issuance of certain debt or equity securities and/or the collateralization of our properties. At March 31, 2014, we had 75 unencumbered properties with an estimated market value of $571.0 million. 65 of these unencumbered properties support the borrowing base for our $350.0 million secured line of credit.  From time to time, we may also issue shares of our capital stock, issue equity units in our Operating Partnership, obtain debt financing, or sell selected assets. Our ability to finance our long-term liquidity requirements in such a manner will be affected by numerous economic factors affecting the manufactured housing community industry at the time, including the availability and cost of mortgage debt, our financial condition, the operating history of the properties, the state of the debt and equity markets, and the general national,

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regional, and local economic conditions. When it becomes necessary for us to approach the credit markets, the volatility in those markets could make borrowing more difficult to secure, more expensive, or effectively unavailable.  See “Risk Factors” in Part I, Item 1A of our 2013 Annual Report.  If we are unable to obtain additional debt or equity financing on acceptable terms, our business, results of operations and financial condition would be adversely impacted.

As of March 31, 2014, our net debt plus preferred stock to enterprise value approximated 43.3% (assuming conversion of all common OP units, A-1 preferred OP units and A-3 preferred OP units to shares of common stock). Our debt has a weighted average maturity of approximately 7.3 years and a weighted average interest rate of 5.1%.

Capital expenditures for the three months ended March 31, 2014 and 2013 included recurring capital expenditures of $1.6 million and $1.7 million, respectively. We are committed to the continued upkeep of our Properties and therefore do not expect a decline in our recurring capital expenditures during 2014.

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SUN COMMUNITIES, INC.

FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains various “forward-looking statements” within the meaning of the United States Securities Act of 1933, as amended, and the United States Securities Exchange Act of 1934, as amended, and we intend that such forward-looking statements will be subject to the safe harbors created thereby. For this purpose, any statements contained in this filing that relate to expectations, beliefs, projections, future plans and strategies, trends or prospective events or developments and similar expressions concerning matters that are not historical facts are deemed to be forward-looking statements. Words such as “forecasts,” “intends,” “intend,” “intended,” “goal,” “estimate,” “estimates,” “expects,” “expect,” “expected,” “project,” “projected,” “projections,” “plans,” “predicts,” “potential,” “seeks,” “anticipates,” “anticipated,” “should,” “could,” “may,” “will,” “designed to,” “foreseeable future,” “believe,” “believes,” “scheduled” and similar expressions are intended to identify forward-looking statements, although not all forward looking statements contain these words. These forward-looking statements reflect our current views with respect to future events and financial performance, but involve known and unknown risks and uncertainties, both general and specific to the matters discussed in this filing. These risks and uncertainties may cause our actual results to be materially different from any future results expressed or implied by such forward-looking statements. In addition to the risks disclosed under “Risk Factors” contained in our 2013 Annual Report and our other filings with the SEC, such risks and uncertainties include:

• changes in general economic conditions, the real estate industry and the markets in which we operate;

• difficulties in our ability to evaluate, finance, complete and integrate acquisitions, developments and expansions successfully;

• our liquidity and refinancing demands;

• our ability to obtain or refinance maturing debt;

• our ability to maintain compliance with covenants contained in our debt facilities;

• availability of capital;

• difficulties in completing acquisitions;

• our ability to maintain rental rates and occupancy levels;

• our failure to maintain effective internal control over financial reporting and disclosure controls and procedures;

• increases in interest rates and operating costs, including insurance premiums and real property taxes;

• risks related to natural disasters;

• general volatility of the capital markets and the market price of shares of our capital stock;

• our failure to maintain our status as a REIT;

• changes in real estate and zoning laws and regulations;

• legislative or regulatory changes, including changes to laws governing the taxation of REITs;

• litigation, judgments or settlements;

• competitive market forces; and

• the ability of manufactured home buyers to obtain financing and the level of repossessions by manufactured home lenders.

Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date the statement was made. We undertake no obligation to publicly update or revise any forward-looking statements included or incorporated by reference into this filing, whether as a result of new information, future events, changes in our expectations or otherwise.

37

SUN COMMUNITIES, INC.

Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. All written and oral forward-looking statements attributable to us or persons acting on our behalf are qualified in their entirety by these cautionary statements.

ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Our principal market risk exposure is interest rate risk. We mitigate this risk by maintaining prudent amounts of leverage, minimizing capital costs and interest expense while continuously evaluating all available debt and equity resources and following established risk management policies and procedures, which include the periodic use of derivatives. Our primary strategy in entering into derivative contracts is to minimize the variability interest rate changes could have on our future cash flows. We generally employ derivative instruments that effectively convert a portion of our variable rate debt to fixed rate debt. We do not enter into derivative instruments for speculative purposes.

We have two interest rate cap agreements with a total notional amount of $162.4 million as of March 31, 2014. The first interest rate cap agreement has a cap rate of 11.27%, a notional amount of $152.4 million and a termination date of April 2015.  The second interest rate cap agreement has a cap rate of 11.02%, a notional amount of $10.0 million and a termination date of October 2016.

Our remaining variable rate debt totals $252.2 million and $163.4 million as of March 31, 2014 and 2013, respectively, and bears interest at Prime or various LIBOR rates. If Prime or LIBOR increased or decreased by 1.0%, we believe our interest expense would have increased or decreased by approximately $1.0 million and $0.7 million as of March 31, 2014 and 2013, respectively, based on the $424.0 million and $302.1 million average balances outstanding under our variable rate debt facilities, respectively.

ITEM 4.  CONTROLS AND PROCEDURES

Evaluation of disclosure controls and procedures

Under the supervision and with the participation of our management, including our Chief Executive Officer, Gary A. Shiffman, and Chief Financial Officer, Karen J. Dearing, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of the end of the period covered by this quarterly report, pursuant to Rule 13a-15 of the Securities and Exchange Act of 1934 (the "Exchange Act"). Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures as of the end of the period covered by this report were effective to ensure that information we are required to disclose in our filings with the SEC under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and to ensure that information we are required to disclose in the reports that we file under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in internal control over financial reporting

There have been no changes in our internal control over financial reporting during the quarterly period ended March 31, 2014 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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SUN COMMUNITIES, INC.

PART II – OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

See Note 18 included in Part I, Item 1, "Notes to Unaudited Consolidated Financial Statements", within this quarterly report on Form 10-Q.

ITEM 1A.  RISK FACTORS

In addition to the other information set forth in this report, you should carefully consider the factors in Part 1, Item 1A., "Risk Factors", in our 2013 Annual Report, which could materially affect our business, financial condition or future results. There have been no material changes to the disclosure on these matters set forth in the 2013 Annual Report.

ITEM 2.  UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Issuer Purchases of Equity Securities

In November 2004, the Board of Directors authorized us to repurchase up to 1,000,000 shares of our common stock.  We have 400,000 common shares remaining in the repurchase program.  No common shares were repurchased under this buyback program during the three months ended March 31, 2014.  There is no expiration date specified for the buyback program.

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SUN COMMUNITIES, INC.

ITEM 6.  EXHIBITS

Exhibit No.	Description	Method of Filing
31.1	Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15(d)-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	(1)
31.2	Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15(d)-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	(1)
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	(1)
101	The following Sun Communities, Inc. financial information for the quarter ended September 30, 2013, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations (unaudited), (iii) Consolidated Statements of Comprehensive Income (unaudited), (iv) Consolidated Statement of Stockholders' Equity (unaudited), (v) Consolidated Statements of Cash Flows (unaudited) and (vi) Notes to Consolidated Financial Statements (unaudited).	(1)

(1) Filed herewith.

40

SUN COMMUNITIES, INC.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: April 30, 2014	By:	/s/ Karen J. Dearing
		Karen J. Dearing, Chief Financial Officer and Secretary (Duly authorized officer and principal financial officer)

41

SUN COMMUNITIES, INC.

EXHIBIT INDEX

Exhibit No.	Description	Method of Filing
31.1	Certification of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15(d)-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	(1)
31.2	Certification of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a)/15(d)-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.	(1)
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.	(1)
101	The following Sun Communities, Inc. financial information for the quarter ended September 30, 2013, formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations (unaudited), (iii) Consolidated Statements of Comprehensive Income (unaudited), (iv) Consolidated Statement of Stockholders' Equity (unaudited), (v) Consolidated Statements of Cash Flows (unaudited) and (vi) Notes to Consolidated Financial Statements (unaudited).	(1)

(1) Filed herewith.

42

EX-31.1

Exhibit 31.1

CERTIFICATIONS

(As Adopted Under Section 302 of the Sarbanes-Oxley Act of 2002)

I, Gary A. Shiffman, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Sun Communities, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Dated: April 30, 2014	/s/ Gary A. Shiffman
	Gary A. Shiffman, Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

(As Adopted Under Section 302 of the Sarbanes-Oxley Act of 2002)

I, Karen J. Dearing, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Sun Communities, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent function):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: April 30, 2014	/s/ Karen J. Dearing
	Karen J. Dearing, Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

(Adopted Under Section 906 of the Sarbanes-Oxley Act of 2002)

The undersigned officers, Gary A. Shiffman and Karen J. Dearing, hereby certify that to the best of their knowledge: (a) this Quarterly Report on Form 10-Q of Sun Communities, Inc., for the period ended March 31, 2014, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and (b) the information contained in this Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Signature	Date
/s/ Gary A. Shiffman	April 30, 2014
Gary A. Shiffman, Chief Executive Officer
/s/ Karen J. Dearing	April 30, 2014
Karen J. Dearing, Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Sun Communities, Inc. and will be retained by Sun Communities, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Derivative Instruments And Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

March 31, 2014:

Type	Purpose	Effective Date	Maturity Date	Notional  (in millions)		Based on	Variable Rate	Fixed Rate	Spread	Effective Fixed Rate
Cap	Cap Floating Rate	4/1/2012	4/1/2015	$	152.4	3 Month LIBOR	0.2466%	11.2650%	—%	N/A
Cap	Cap Floating Rate	10/3/2011	10/3/2016	$	10.0	3 Month LIBOR	0.2466%	11.0200%	—%	N/A

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table summarizes the fair value of derivative instruments included in our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in thousands):

	Asset Derivatives					Liability Derivatives
	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments		March 31, 2014		December 31, 2013			March 31, 2014		December 31, 2013
Interest rate swaps and cap agreement	Other assets	$	—	$	—	Other liabilities	$	—	$	97
Total derivatives designated as hedging instruments		$	—	$	—		$	—	$	97

Schedule of Derivative Instruments, Effect on Other Comprehensive Income

The following tables summarize the impact of derivative instruments for the three months ended March 31, 2014 and 2013 as recorded in the consolidated statements of operations (in thousands):

Derivatives in Cash Flow Hedging	Amount of Gain or (Loss) Recognized in OCI (Effective Portion)				Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)
	Three Months Ended March 31,					Three Months Ended March 31,
	2014		2013			2014		2013
Interest rate swaps and cap agreement	$	97	$	92	Interest expense	$	—	$	—
Total	$	97	$	92	Total	$	—	$	—

XML

Intangibles Schedule of Finite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ (14,721)	$ (15,025)
Finite-Lived Intangible Assets, Gross	41,961	41,090
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Finite-Lived Intangible Assets, Accumulated Amortization	(9,130)	(8,239)
Finite-Lived Intangible Assets, Gross	28,251	26,961
Capitalized Leasing Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Finite-Lived Intangible Assets, Accumulated Amortization	(5,543)	(6,757)
Finite-Lived Intangible Assets, Gross	12,940	13,359
Franchise Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Finite-Lived Intangible Assets, Accumulated Amortization	(48)	(29)
Finite-Lived Intangible Assets, Gross	770	770
Total 2014 Acquisitions [Domain]
Finite-Lived Intangible Assets [Line Items]
In-place leases and other intangible assets	$ 1,290

XML

Schedule of notes and other receivables (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	$ 162,306	$ 164,685
Other receivables, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	26,479	29,393
Carrying Value [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	24,385	25,471
Carrying Value [Member] | Collateralized receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total notes and other receivables, net	$ 111,442	$ 109,821

XML

Earnings Per Share , Calculation of Numerator and Denominator (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerator
Basic earnings: net income attributable to common stockholders	$ 7,846	$ 5,744
Diluted earnings: net income available to common stockholders and unitholders	$ 7,846	$ 5,744
Denominator
Weighted average common shares outstanding	36,495	30,427
Weighted average unvested restricted stock outstanding	645	347
Basic Weighted average common shares outstanding	37,140	30,774
Add: dilutive securities	14	15
Diluted weighted average common shares	37,154	30,789
Basic	$ 0.21	$ 0.19
Diluted	$ 0.21	$ 0.19

XML

Intangibles Schedule of Intangible Asset Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1,278	$ 1,084
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	891	730
Capitalized Leasing Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	356	354
Franchise Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 31	$ 0

XML

Transfers Of Financial Assets , Schedule of collateralized loans (Details) (Collateralized receivables [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Collateralized receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 110,510
Financed sales of manufactured homes	6,548
Principal payments and payoffs from our customers	1,854
Principal reduction from repurchased homes	2,996
Total activity	1,698
Ending balance	$ 112,208

XML

Intangibles Schedule of Intangible Asset Amortization Expense (Tables)

3 Months Ended

Mar. 31, 2014

Finite-Lived Intangible Assets, Net [Abstract]

Schedule of Intangible Assets Amortization Expense [Table Text Block]

The aggregate net amortization expenses related to the intangible assets are as follows (in thousands):

	Three Months Ended March 31,
Intangible Asset	2014		2013
In-place leases	$	891	$	730
Capitalized leasing costs greater than 1 year	356		354
Franchise fees	31		—
Total	$	1,278	$	1,084

XML

Derivative Instruments And Hedging Activities , Balance Sheet Location (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0	$ 0
Liability Derivatives	0	97,000
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	0	0
Collateral Already Posted, Aggregate Fair Value	0	700,000
Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives		97,000
Carrying Value [Member] | Other liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 0	$ 97,000

XML

Investment In Affiliates , Schedule of Investments (Details) (Origen Financial [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Origen Financial [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	$ 11,207	$ 12,673
Expenses	(11,304)	(14,519)
Net loss	$ (97)	$ (1,846)

XML

Commitments And Contingencies (Details) (TJ Holdings, LLC [Member], USD $)	1 Months Ended
	Jun. 30, 2010
Loss Contingencies [Line Items]
Payments for Legal Settlements	$ 360,000
Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Ownership Percentage, After Qualifying Event with Joint Venture Properties	9.03%
Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Closing Stock Price Determination, Period Preceeding Qualifying Event with Joint Venture Properties	30 days
Loss Contingency, Settlement Agreement, Ownership Percentage, After Qualifying Event with Joint Venture Properties	28.99%

XML

Subsequent Event (Details) (Saco RV Resort [Member], Series of Acquisitions [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Apr. 30, 2014	Apr. 25, 2014
Saco RV Resort [Member] | Series of Acquisitions [Member]
Subsequent Event [Line Items]
Number of sites		127
Payments to Acquire Businesses, Gross	$ 4.4

XML

Earnings Per Share , Antidilutive Securities Excluded from Computation of Loss Per Share (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,880	3,889
Common OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,069	2,069
Series A-1 Preferred OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	446	455
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, Amount	40	40
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, Amount	1,325	1,325

XML

Recent Accounting Pronouncements

3 Months Ended

Mar. 31, 2014

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In April 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-08, "Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity" ("ASU 2014-08"). ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. The guidance does not change the presentation requirements for discontinued operations in the statement where net income is presented. ASU 2014-08 also requires the reclassification of assets and liabilities of a discontinued operation in the statement of financial position for all prior periods presented. The standard expands the disclosures for discontinued operations and requires new disclosures related to individually material disposals that do not meet the definition of a discontinued operation, an entity's continuing involvement with a discontinued operation following the disposal date and retained equity method investments in a discontinued operation. ASU 2014-08 is effective for annual periods beginning on or after December 15, 2014 and interim periods within annual periods beginning on or after December 15, 2015. Early adoption is permitted but only for disposals (or classifications as held for sale) that have not been reported in financial statements previously issued or available for issue. The Company has chosen to early adopt this pronouncement and will apply the guidance to future applicable disposals or discontinued operations, if any.

XML

Schedule of installment notes receivable (Details) (Installment notes receivable on manufactured homes, gross [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Installment notes receivable on manufactured homes, gross [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 25,575
Financed sales of manufactured homes	62
Principal payments and payoffs from our customers	731
Principal reduction from repossessed homes	389
Total activity	(1,058)
Ending balance	$ 24,517

XML

Real Estate Acquisitions, Schedule of Revenue and Net Income from acquisitions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Business Combination, Results of Operations [Line Items]
Acquisition related costs	$ 760	$ 1,042
Series of Acquisitions [Member]
Business Combination, Results of Operations [Line Items]
Revenue	1,053
Net Income	$ 359

XML

Fair Value of Financial Instruments , By Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financial assets
Notes and other receivables, net	$ 162,306	$ 164,685
Financial liabilities
Liability Derivatives	0	97
Secured debt	1,408,393	1,311,437
Other liabilities [Member]
Financial liabilities
Liability Derivatives		97
Carrying Value [Member]
Financial liabilities
Debt (excluding secured borrowings)	1,296,185	1,200,927
Lines of credit	16,441	181,383
Carrying Value [Member] | Installment notes receivable on manufactured homes, net [Member]
Financial assets
Notes and other receivables, net	24,385	25,471
Carrying Value [Member] | Collateralized receivables [Member]
Financial assets
Notes and other receivables, net	111,442	109,821
Carrying Value [Member] | Other liabilities [Member]
Financial liabilities
Liability Derivatives	0	97
Carrying Value [Member] | Secured Debt [Member]
Financial liabilities
Secured debt	112,208	110,510
Fair Value [Member] | Fair Value, Measurements, Recurring [Member]
Financial liabilities
Liability Derivatives	0	97
Debt (excluding secured borrowings)	1,308,413	1,211,821
Secured borrowing	112,208	110,510
Lines of credit	16,441	181,383
Fair Value [Member] | Installment notes receivable on manufactured homes, net [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets
Receivables	24,385	25,471
Fair Value [Member] | Collateralized receivables [Member] | Fair Value, Measurements, Recurring [Member]
Financial assets
Receivables	$ 111,442	$ 109,821

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting, Asset Reconciling Item [Line Items]

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	March 31, 2014						December 31, 2013
	Real Property Operations		Home Sales and Home Rentals		Consolidated		Real Property Operations		Home Sales and Home Rentals			Consolidated
Identifiable assets:
Investment property, net	$	1,553,798	$	310,276	$	1,864,074	$	1,460,628	$	294,424		$	1,755,052
Cash and cash equivalents	9,227		78		9,305		5,336		(583		)	4,753
Inventory of manufactured homes	—		6,541		6,541		—		5,810			5,810
Notes and other receivables	154,227		8,079		162,306		154,524		10,161			164,685
Other assets	61,186		4,820		66,006		64,342		4,594			68,936
Total assets	$	1,778,438	$	329,794	$	2,108,232	$	1,684,830	$	314,406		$	1,999,236

Schedule of Segment Reporting Information, by Segment [Table Text Block]

A presentation of segment financial information is summarized as follows (amounts in thousands):

	Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
	Real Property Operations			Home Sales and Home Rentals			Consolidated			Real Property Operations			Home Sales and Home Rentals			Consolidated
Revenues	$	87,497		$	19,525		$	107,022		$	79,065		$	20,217		$	99,282
Operating expenses/Cost of sales	29,198			13,099			42,297			25,702			14,079			39,781
Net operating income/Gross profit	58,299			6,426			64,725			53,363			6,138			59,501
Adjustments to arrive at net income (loss):
Ancillary, interest and other income, net	4,159			—			4,159			3,631			—			3,631
General and administrative	(7,813		)	(2,499		)	(10,312		)	(6,790		)	(2,435		)	(9,225		)
Acquisition related costs	(752		)	(8		)	(760		)	(1,042		)	—			(1,042		)
Depreciation and amortization	(18,356		)	(10,533		)	(28,889		)	(16,796		)	(8,466		)	(25,262		)
Interest	(17,588		)	(2		)	(17,590		)	(18,555		)	(309		)	(18,864		)
Interest on mandatorily redeemable debt	(803		)	—			(803		)	(809		)	—			(809		)
Distributions from affiliate	400			—			400			400			—			400
Provision for state income taxes	(69		)	—			(69		)	(59		)	—			(59		)
Net income (loss)	17,477			(6,616		)	10,861			13,343			(5,072		)	8,271
Less:  Preferred return to A-1 preferred OP units	672			—			672			573			—			573
Less: Preferred return to A-3 preferred OP units	45			—			45			30			—			30
Less:  Amounts attributable to noncontrolling interests	1,325			(541		)	784			896			(486		)	410
Net income (loss) attributable to Sun Communities, Inc.	15,435			(6,075		)	9,360			11,844			(4,586		)	7,258
Less: Series A preferred stock distributions	1,514			—			1,514			1,514			—			1,514
Net income (loss) attributable to Sun Communities, Inc. common stockholders	$	13,921		$	(6,075	)	$	7,846		$	10,330		$	(4,586	)	$	5,744

12. Segment Reporting, continued

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Allowance for collateralized and installment notes receivable (Details) (Collateralized receivables, net and Installment Notes Receivables on Manufactured Homes [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Collateralized receivables, net and Installment Notes Receivables on Manufactured Homes [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 793
Lower of cost or market write-downs	149
Increase to reserve balance	(254)
Total activity	(105)
Ending balance	$ 898

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Segment Reporting Results of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Revenues	$ 107,022	$ 99,282
Operating Expenses/Cost of Sales	42,297	39,781
Net operating income/Gross Profit	64,725	59,501
Ancillary, interest and other income, net	4,159	3,631
General and Administrative Expense	10,312	9,225
Acquisition related costs	760	1,042
Depreciation and amortization	28,889	25,262
Interest	17,590	18,864
Interest on mandatorily redeemable debt	(803)	(809)
Distributions from affiliate	400	400
Provision for state income taxes	(69)	(59)
Net income	10,861	8,271
Less: Preferred return to Series A-1 preferred OP units	672	573
Less: Preferred return to Series A-3 preferred OP units	45	30
Less: Amounts attributable to noncontrolling interests	784	410
Net income attributable to Sun Communities, Inc.	9,360	7,258
Less: Series A preferred stock distributions	1,514	1,514
Net income attributable to Sun Communities, Inc. common stockholders	7,846	5,744
Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Revenues	87,497	79,065
Operating Expenses/Cost of Sales	29,198	25,702
Net operating income/Gross Profit	58,299	53,363
Ancillary, interest and other income, net	4,159	3,631
General and Administrative Expense	(7,813)	6,790
Acquisition related costs	(752)	1,042
Depreciation and amortization	(18,356)	16,796
Interest	(17,588)	18,555
Interest on mandatorily redeemable debt	(803)	(809)
Distributions from affiliate	400	400
Provision for state income taxes	(69)	(59)
Net income	17,477	13,343
Less: Amounts attributable to noncontrolling interests	1,325	896
Net income attributable to Sun Communities, Inc.	15,435	11,844
Less: Series A preferred stock distributions	1,514	1,514
Net income attributable to Sun Communities, Inc. common stockholders	13,921	10,330
Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	19,525	20,217
Operating Expenses/Cost of Sales	13,099	14,079
Net operating income/Gross Profit	6,426	6,138
Ancillary, interest and other income, net	0	0
General and Administrative Expense	(2,499)	2,435
Acquisition related costs	(8)	0
Depreciation and amortization	(10,533)	8,466
Interest	(2)	309
Interest on mandatorily redeemable debt	0	0
Distributions from affiliate	0	0
Provision for state income taxes	0	0
Net income	(6,616)	(5,072)
Less: Amounts attributable to noncontrolling interests	(541)	(486)
Net income attributable to Sun Communities, Inc.	(6,075)	(4,586)
Less: Series A preferred stock distributions	0	0
Net income attributable to Sun Communities, Inc. common stockholders	(6,075)	(4,586)
Series A-1 Preferred OP Units [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-1 preferred OP units	672	573
Series A-1 Preferred OP Units [Member] | Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-1 preferred OP units	672	573
Series A-1 Preferred OP Units [Member] | Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-1 preferred OP units	0	0
Series A-3 Preferred OP Units [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-3 preferred OP units	45	30
Series A-3 Preferred OP Units [Member] | Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-3 preferred OP units	45	30
Series A-3 Preferred OP Units [Member] | Home Sales and Home Rentals Segment [Member]
Segment Reporting Information [Line Items]
Less: Preferred return to Series A-3 preferred OP units	$ 0	$ 0

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Debt And Lines Of Credit , Narrative - Aspen Preferred OP Units and Series B-3 preferred OP units (Details) (Aspen Preferred OP Units [Member], Convertible debt - Aspen Preferred OP Units January 2024 [Member], USD $)	3 Months Ended
	Mar. 31, 2014 Rate
Aspen Preferred OP Units [Member] | Convertible debt - Aspen Preferred OP Units January 2024 [Member]
Debt Instrument [Line Items]
Convertible units to shares (in shares)	526,212
Conversion Price (in dollars per share)	$ 68
Debt Instrument, Interest Rate During Period	6.50%

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Transfers Of Financial Assets , Narrative (Details) (USD $)					3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Collateralized receivables [Member]	Dec. 31, 2013 Collateralized receivables [Member]	Mar. 31, 2014 Secured Debt [Member]	Mar. 31, 2013 Secured Debt [Member]	Mar. 31, 2014 Carrying Value [Member] Secured Debt [Member]	Dec. 31, 2013 Carrying Value [Member] Secured Debt [Member]	Mar. 31, 2014 Carrying Value [Member] Collateralized receivables [Member]	Dec. 31, 2013 Carrying Value [Member] Collateralized receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes and other receivables, net	$ 162,306,000	$ 164,685,000							$ 111,442,000	$ 109,821,000
Loans and Leases Receivable, Allowance			800,000	700,000
Secured debt	1,408,393,000	1,311,437,000					112,208,000	110,510,000
Interest income and expense, net					$ 2,700,000	$ 2,400,000

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Basis of Presentation

3 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Basis of Presentation

The unaudited interim consolidated financial statements of 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”), SunChamp LLC (“SunChamp”), and Sun Home Services, Inc. (“SHS”), have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial information and in accordance with accounting principles generally accepted in the United States of America (“GAAP”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying 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. Certain reclassifications have been made to prior periods’ financial statements in order to conform to current period presentation.

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 interim 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, 2013 as filed with the SEC on February 20, 2014 (the “2013 Annual Report”). These statements have been prepared on a basis that is substantially consistent with the accounting principles applied in our 2013 Annual Report.

Reference in this report to Sun Communities, Inc., “we”, “our”, “us” and the “Company” refer to Sun Communities, Inc. and its subsidiaries, unless the context indicates otherwise.

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Debt And Lines Of Credit , Narrative - Mortgage Notes (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Total debt	$ 1,408,393,000	$ 1,311,437,000
Mortgages [Member]
Debt Instrument [Line Items]
Total debt	142,239,000	143,042,000
Properties securing debt [Member] | Mortgages [Member]
Debt Instrument [Line Items]
Number of properties securing a debt instument (in properties)	18
Number of sites	7,868
Net book value of properties securing mortgage notes	$ 241,900,000

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Real Estate Acquisitions , Pro Forma Information (Details) (Series of Acquisitions [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Series of Acquisitions [Member]
Business Acquisition [Line Items]
Total revenues	$ 112,132	$ 106,100
Net income attributable to Sun Communities, Inc. common stockholders	$ 8,684	$ 7,059
Net income attributable to Sun Communities, Inc. common stockholders - basic (in dollars per share)	$ 0.23	$ 0.23
Net income attributable to Sun Communities, Inc. common stockholders - diluted (in dollars per share)	$ 0.23	$ 0.23

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Investment Property (Tables)

3 Months Ended

Mar. 31, 2014

Real Estate Investment Property, Net [Abstract]

Real estate, investment property [Table Text Block]

The following table sets forth certain information regarding investment property (in thousands):

	March 31, 2014			December 31, 2013
Land	$	212,901		$	194,404
Land improvements and buildings	1,897,386			1,806,546
Rental homes and improvements	414,782			393,562
Furniture, fixtures, and equipment	67,432			65,086
Land held for future development	29,521			29,521
Investment property	2,622,022			2,489,119
Accumulated depreciation	(757,948		)	(734,067		)
Investment property, net	$	1,864,074		$	1,755,052

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Real Estate Acquisitions (Tables)

3 Months Ended

Mar. 31, 2014

Business Combinations [Abstract]

Business Acquisition, Pro Forma Information [Table Text Block]

The following unaudited pro forma financial information presents the results of our operations for the three months ended March 31, 2014 and 2013 as if the properties were acquired on January 1, 2013. The unaudited pro forma results reflect certain adjustments for items that are not expected to have a continuing impact, such as adjustments for acquisition 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 acquisitions been consummated on January 1, 2013 (in thousands, except per-share data).

	Three Months Ended March 31,
	(unaudited)
	2014		2013
Total revenues	$	112,132	$	106,100
Net income attributable to Sun Communities, Inc. common stockholders	$	8,684	$	7,059
Net income per share attributable to Sun Communities, Inc. common stockholders - basic	$	0.23	$	0.23
Net income per share attributable to Sun Communities, Inc. common stockholders - diluted	$	0.23	$	0.23

Schedule of Revenue and Net Income from Acquisitions [Table Text Block]

The amount of revenue and net income included in the consolidated statements of operations for the three months ended March 31, 2014 for all acquisitions described above is set forth in the following table (in thousands):

	Three Months Ended March 31, 2014
	(unaudited)
Revenue	$	1,053
Net income	$	359

Schedule of Purchase Price Allocation

The following tables summarize the amounts of the assets acquired and liabilities assumed at the acquisition dates and the consideration paid for acquisitions completed in 2014 (in thousands):

At Acquisition Date	Wine Country			Castaways			Seashore			Driftwood			Total
Investment in property	$	13,250		$	36,597		$	24,258		$	31,301		$	105,406
In-place leases and other intangible assets	—			—			500			790			1,290
Other assets	9			2			12			4			27
Other liabilities	(60		)	(497		)	(1,188		)	(836		)	(2,581		)
Total identifiable assets and liabilities assumed	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142
Consideration
Cash consideration transferred	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142

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Investment In Affiliates , Narrative (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
Origen Financial Services [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	22.90%	22.90%
Investment carrying value	$ 0
Origen Financial [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	19.00%
Investment carrying value	0
Investment owned (in shares)	5,000,000
Market value of investment company	$ 6,700,000
Origen quoted market closing price (in dollars per share)	$ 1.33

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Investment Property (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Real estate, investment property [Line Items]
Land	$ 212,901	$ 194,404
Land improvements and buildings	1,897,386	1,806,546
Rental homes and improvements	414,782	393,562
Furniture, fixtures, and equipment	67,432	65,086
Land held for future development	29,521	29,521
Investment property	2,622,022	2,489,119
Accumulated depreciation	(757,948)	(734,067)
Investment property, net	$ 1,864,074	$ 1,755,052

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Transfers Of Financial Assets (Tables)

3 Months Ended

Mar. 31, 2014

Transfers and Servicing [Abstract]

Repurchase price percentage [Table Text Block]

In general, the repurchase price is determined as follows:

Number of Payments	Repurchase %
Less than or equal to 15	100	%
Greater than 15 but less than 64	90	%
Equal to or greater than 64 but less than 120	65	%
120 or more	50	%

Schedule of collateralized loans [Table Text Block]

The change in the aggregate gross principal balance of the collateralized receivables is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	110,510
Financed sales of manufactured homes	6,548
Principal payments and payoffs from our customers	(1,854		)
Principal reduction from repurchased homes	(2,996		)
Total activity	1,698
Ending balance	$	112,208

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Notes And Other Receivables (Tables)

3 Months Ended

Mar. 31, 2014

Long-term Notes and Loans, by Type, Current and Noncurrent [Abstract]

Schedule of notes and other receivables [Table Text Block]

The following table sets forth certain information regarding notes and other receivables (in thousands):

	March 31, 2014		December 31, 2013
Installment notes receivable on manufactured homes, net	$	24,385	$	25,471
Collateralized receivables, net (see Note 4)	111,442		109,821
Other receivables, net	26,479		29,393
Total notes and other receivables, net	$	162,306	$	164,685

Schedule of Installment Notes Receivable [Table Text Block]

The change in the aggregate gross principal balance of the installment notes is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	25,575
Financed sales of manufactured homes	62
Principal payments and payoffs from our customers	(731		)
Principal reduction from repossessed homes	(389		)
Total activity	(1,058		)
Ending balance	$	24,517

Allowance for collateralized and installment notes receivable [Table Text Block]

The following table sets forth the allowance for collateralized and installment notes receivable as of March 31, 2014 (in thousands).

	Three Months Ended
	March 31, 2014
Beginning balance	$	(793	)
Lower of cost or market write-downs	149
Increase to reserve balance	(254		)
Total activity	(105		)
Ending balance	$	(898	)

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Consolidated Statements Of Cash Flows Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Interest Costs Capitalized	$ 171	$ 0

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Intangibles Schedule of Finite-Lived Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Finite-Lived Intangible Assets [Line Items]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The accumulated amortization and gross carrying amounts are as follows (in thousands):

		March 31, 2014					December 31, 2013
Intangible Asset	Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
In-place leases	7 years	$	28,251	$	(9,130	)	$	26,961	$	(8,239	)
Capitalized leasing costs greater than 1 year	7 years	12,940		(5,543		)	13,359		(6,757		)
Franchise fees	15 years	770		(48		)	770		(29		)
Total		$	41,961	$	(14,721	)	$	41,090	$	(15,025	)

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping

The table below sets forth our financial assets and liabilities that required disclosure of their fair values on a recurring basis and presents the carrying values and fair values as of March 31, 2014 and December 31, 2013 that were measured using the valuation techniques described above. The table excludes other financial instruments such as cash and cash equivalents, accounts receivable, and accounts payable because the carrying values associated with these instruments approximate fair value since their maturities are less than one year.

	March 31, 2014				December 31, 2013
Financial assets	Carrying Value		Fair Value		Carrying Value		Fair Value
Installment notes on manufactured homes, net	$	24,385	$	24,385	$	25,471	$	25,471
Collateralized receivables, net	$	111,442	$	111,442	$	109,821	$	109,821
Financial liabilities
Derivative instruments	$	—	$	—	$	97	$	97
Debt (excluding secured borrowing)	$	1,296,185	$	1,308,413	$	1,200,927	$	1,211,821
Secured borrowing	$	112,208	$	112,208	$	110,510	$	110,510
Lines of credit	$	16,441	$	16,441	$	181,383	$	181,383

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Notes And Other Receivables Other receivables - Narrative (Details) (USD $) In Millions, unless otherwise specified				3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Notes Receivable [Member] Rate	Mar. 31, 2014 2014-2015 [Member] Rate	Mar. 31, 2014 2016 [Member] Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables for rent, water, sewer usage	$ 4.7	$ 6.9
Allowance for rent, water, sewer usage receivables	(0.5)	(0.7)
Home sale proceeds	5.0	5.7
Insurance receivables	2.4	2.0
Insurance Settlements Receivable		3.7
Note receivable related to acquistion	4.3	4.3
Miscellaneous note receivable	2.2
Miscellaneous Note Receivable, Interest Rate				8.00%	7.90%
Other Receivables	4.2	4.6
Loans Receivable, Basis Spread on Variable Rate			475.00%
Pledged Assets, Series A-3 preferred OP units	$ 4.0

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Derivative Instruments And Hedging Activities , Derivative Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	$ 20.0
Interest Rate Cap [Member] | Derivative Maturing 2015 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	152.4
Derivative, Type	Cap
Derivative, Purpose	Cap Floating Rate
Derivative, Effective Date	Apr. 01, 2012
Derivative, Maturity Date	Apr. 01, 2015
Derivative, Based on	3 Month LIBOR
Derivative, Variable Rate	0.2466%
Derivative, Fixed Rate	11.265%
Derivative, Spread on Variable Rate	0.00%
Interest Rate Cap [Member] | Derivative Maturing 2016 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Derivatives	$ 10.0
Derivative, Type	Cap
Derivative, Purpose	Cap Floating Rate
Derivative, Effective Date	Oct. 03, 2011
Derivative, Maturity Date	Oct. 03, 2016
Derivative, Based on	3 Month LIBOR
Derivative, Variable Rate	0.2466%
Derivative, Fixed Rate	11.02%
Derivative, Spread on Variable Rate	0.00%

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Investment property, net	$ 1,864,074	$ 1,755,052
Cash and cash equivalents	9,305	4,753
Inventory of manufactured homes	6,541	5,810
Notes and other receivables, net	162,306	164,685
Other assets	66,006	68,936
TOTAL ASSETS	2,108,232	1,999,236
LIABILITIES
Debt	1,408,393	1,311,437
Lines of credit	16,441	181,383
Other liabilities	117,618	109,342
TOTAL LIABILITIES	1,542,452	1,602,162
Commitments and contingencies
STOCKHOLDERS' EQUITY
Preferred stock, $0.01 par value. Authorized 10,000 shares; Issued and outstanding: 3,400 shares at March 31, 2014 and December 31, 2013	34	34
Common Stock, $0.01 par value. Authorized: 90,000 shares; Issued and outstanding: 40,394 shares at March 31, 2014 and 36,140 shares at December 31, 2013	404	361
Additional paid-in capital	1,329,678	1,141,590
Accumulated other comprehensive loss	(277)	(366)
Distributions in excess of accumulated earnings	(778,766)	(761,112)
Total Sun Communities, Inc. stockholders' equity	551,073	380,507
Noncontrolling interests:
Series A-1 preferred OP units	44,991	45,548
Series A-3 preferred OP units	3,463	3,463
Common OP units	(33,358)	(31,907)
Consolidated variable interest entities	(389)	(537)
Total noncontrolling interests	14,707	16,567
TOTAL STOCKHOLDERS' EQUITY	565,780	397,074
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 2,108,232	$ 1,999,236

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Transfers Of Financial Assets , Repurchase price percentage (Details) (Collateralized receivables [Member])	3 Months Ended
	Mar. 31, 2014
Less than or equal to 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repurchase Percentage	100.00%
Greater than 15 but less than 64 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repurchase Percentage	90.00%
Equal to or greater than 64 but less than 120 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repurchase Percentage	65.00%
120 or more [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Repurchase Percentage	50.00%

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Consolidated Statement Of Stockholders' Equity (Deficit) (USD $) In Thousands, unless otherwise specified	Total	Series A Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss) Income	Distributions in Excess of Accumulated Earnings	Noncontrolling Interests	Total Stockholders' Equity (Deficit)
Balance at Dec. 31, 2013	$ 397,074	$ 34	$ 361	$ 1,141,590	$ (366)	$ (761,112)	$ 16,567	$ 397,074
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from exercise of options, net		0	0	53	0	0	0	53
Issuance, conversion of OP units and associated costs of common stock, net		0	43	186,945	0	0	(557)	186,431
Share-based compensation - amortization and forfeitures		0	0	1,090	0	40	0	1,130
Net income	10,861	0	0	0	0	10,077	784	10,861
Unrealized gain on interest rate swaps	97	0	0	0	89	0	8	97
Distributions declared	(3,563)	0	0	0	0	27,771	2,095	(29,866)
Balance at Mar. 31, 2014	$ 565,780	$ 34	$ 404	$ 1,329,678	$ (277)	$ (778,766)	$ 14,707	$ 565,780

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Debt And Lines Of Credit , Table - Schedule of debt and lines of credit (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Rate	Dec. 31, 2013 Rate
Debt Instrument [Line Items]
Debt	$ 1,408,393	$ 1,311,437
Debt weighted average to maturity, years	7 years 3 months 18 days	7 years 2 months 12 days
Weighted average interest rate	5.10%	5.00%
Collateralized term loans - CMBS [Member]
Debt Instrument [Line Items]
Debt	643,096	644,844
Debt weighted average to maturity, years	5 years 10 months 24 days	6 years 1 month 6 days
Weighted average interest rate	5.40%	5.40%
Collateralized term loans - FNMA [Member]
Debt Instrument [Line Items]
Debt	364,966	366,019
Debt weighted average to maturity, years	7 years 10 months 24 days	8 years 1 month 6 days
Weighted average interest rate	3.10%	3.60%
Collateralized Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Debt	1,100,000
Aspen Series B3 Preferred Operating Partnership Units [Member]
Debt Instrument [Line Items]
Debt	47,022	47,022
Debt weighted average to maturity, years	7 years 7 months 6 days	7 years 7 months 6 days
Weighted average interest rate	6.90%	6.90%
Secured borrowing [Member]
Debt Instrument [Line Items]
Debt weighted average to maturity, years	13 years 7 months 6 days	13 years 6 months
Weighted average interest rate	10.60%	10.70%
Mortgage notes, other [Member]
Debt Instrument [Line Items]
Debt	142,239	143,042
Debt weighted average to maturity, years	5 years 9 months 18 days	6 years
Weighted average interest rate	4.60%	4.60%
Northwestern Mutual Life Insurance Company [Member] | Collateralized Mortgage Backed Securities [Member]
Debt Instrument [Line Items]
Debt	98,862	0
Debt weighted average to maturity, years	10 years 7 months 6 days
Weighted average interest rate	4.20%
Carrying Value [Member] | Secured borrowing [Member]
Debt Instrument [Line Items]
Debt	$ 112,208	$ 110,510

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Consolidated Variable Interest Entities Consolidated Variable Interest Entities (Tables)

3 Months Ended

Mar. 31, 2014

DisclosureofVariableInterestEntities [Abstract]

Schedule of Variable Interest Entities [Table Text Block]

The following table summarizes the assets and liabilities included in our consolidated balance sheet after appropriate eliminations (in thousands):

	March 31, 2014			December 31, 2013
ASSETS
Investment property, net	$	56,427		$	56,805
Other assets	3,798			3,926
Total Assets	$	60,225		$	60,731
LIABILITIES AND STOCKHOLDERS' EQUITY
Debt	$	45,024		$	45,209
Other liabilities	7,666			6,564
Noncontrolling interests	(389		)	(537		)
Total Liabilities and Stockholders' Equity	$	52,301		$	51,236

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Share-Based Compensation , Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			1 Months Ended		3 Months Ended	1 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Stock Options [Member] 2004 non-employee plan [Member]	Feb. 28, 2014 Restricted Stock [Member]	Feb. 28, 2013 Restricted Stock [Member]	Mar. 31, 2014 Restricted Stock [Member]	Feb. 28, 2014 Restricted Stock [Member] 2004 non-employee plan [Member]	Feb. 28, 2014 Restricted Stock [Member] 2009 Equity Plan [Member]	Feb. 28, 2014 February 12, 2018 [Member] Restricted Stock [Member] 2009 Equity Plan [Member]	Feb. 28, 2014 February 12, 2019 [Member] Restricted Stock [Member] 2009 Equity Plan [Member]	Feb. 28, 2014 February 12, 2020 [Member] Restricted Stock [Member] 2009 Equity Plan [Member]	Feb. 28, 2014 February 12, 2021 [Member] Restricted Stock [Member] 2009 Equity Plan [Member]	Feb. 28, 2014 February 12, 2022 [Member] Restricted Stock [Member] 2009 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, shares (in shares)							14,000	16,000
Weighted average grant date fair value				$ 48.01	$ 48.01
Award vesting rights									0.2	0.3	0.35	0.1	0.05
Exercises in period			2,253
Proceeds from stock option exercise	$ 53	$ 100
Vested restricted stock (in shares)						5,000

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Earnings Per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

We have outstanding stock options and unvested restricted shares, and our Operating Partnership has common OP units, convertible A-1 preferred OP units, convertible A-3 preferred OP units and Aspen preferred OP Units, which if converted or exercised, may impact dilution. 

Computations of basic and diluted earnings per share from continuing operations were as follows (in thousands, except per share data):

	Three Months Ended March 31,
Numerator	2014		2013
Net income attributable to common stockholders	$	7,846	$	5,744
Denominator
Weighted average common shares outstanding	36,495		30,427
Weighted average unvested restricted stock outstanding	645		347
Basic weighted average common shares and unvested restricted stock outstanding	37,140		30,774
Add: dilutive securities	14		15
Diluted weighted average common shares and securities	37,154		30,789
Earnings per share available to common stockholders:
Basic	$	0.21	$	0.19
Diluted	$	0.21	$	0.19

We excluded certain securities from the computation of diluted earnings per share because the inclusion of these securities would have been anti-dilutive for the periods presented.  The following table presents the number of outstanding potentially dilutive securities that were excluded from the computation of diluted earnings per share for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	Three Months Ended March 31,
	2014	2013
Common OP units	2,069	2,069
Series A-1 preferred OP units	446	455
Series A-3 preferred OP units	40	40
Aspen preferred OP units	1,325	1,325
Total securities	3,880	3,889

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Debt And Lines Of Credit (Tables)

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Schedule of debt and lines of credit [Table Text Block]

The following table sets forth certain information regarding debt (in thousands):

	Principal Outstanding				Weighted Average Years to Maturity		Weighted Average Interest Rates
	March 31, 2014		December 31, 2013		March 31, 2014	December 31, 2013	March 31, 2014		December 31, 2013
Collateralized term loans - CMBS	$	643,096	$	644,844	5.9	6.1	5.4	%	5.4	%
Collateralized term loans - FNMA	364,966		366,019		7.9	8.1	3.1	%	3.6	%
Collateralized term loans - Northwestern	98,862		—		10.6	N/A	4.2	%	N/A
Aspen and Series B-3 preferred OP Units	47,022		47,022		7.6	7.6	6.9	%	6.9	%
Secured borrowing (see Note 4)	112,208		110,510		13.6	13.5	10.6	%	10.7	%
Mortgage notes, other	142,239		143,042		5.8	6.0	4.6	%	4.6	%
Total debt	$	1,408,393	$	1,311,437	7.3	7.2	5.1	%	5.0	%

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Of Financial Instruments

Fair Value of Financial Instruments

Our financial instruments consist primarily of cash and cash equivalents, accounts and notes receivable, accounts payable, derivative instruments, and debt.

ASC Topic 820, Fair Value Measurements and Disclosures, establishes a fair value hierarchy that requires the use of observable market data, when available, and prioritizes the inputs to valuation techniques used to measure fair value in the following categories:

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 observable inputs and significant value drivers are observable in active markets.

Level 3—Model derived valuations in which one or more significant inputs or significant value drivers are unobservable, including assumptions developed by us.

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 to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value.

Derivative Instruments

The derivative instruments held by us are interest rate swap and cap agreements for which quoted market prices are indirectly available. For those derivatives, we use model-derived valuations in which all observable inputs and significant value drivers are observable in active markets provided by brokers or dealers to determine the fair values of derivative instruments on a recurring basis (Level 2). See Note 15 for Derivative Instruments.

Installment Notes on Manufactured Homes

The net carrying value of the installment notes on manufactured homes estimates the fair value as the interest rates in the portfolio are comparable to current prevailing market rates (Level 2). See Note 5 for Installment Notes.

Long Term Debt and Lines of Credit

The fair value of long term debt (excluding the secured borrowing) is based on the estimates of management and on rates currently quoted and rates currently prevailing for comparable loans and instruments of comparable maturities (Level 2). See Note 9 for Long-Term Debt and Lines of Credit.

Collateralized Receivables and Secured Borrowing

The fair value of these financial instruments offset each other as our collateralized receivables represent a transfer of financial assets and the cash proceeds received from these transactions have been classified as a secured borrowing in the consolidated balance sheets. The net carrying value of the collateralized receivables estimates the fair value as the interest rates in the portfolio are comparable to current prevailing market rates (Level 2). See Note 4 for Collateralized Receivables and Secured Borrowing.

Other Financial Instruments

The carrying values of cash and cash equivalents, accounts receivable, and accounts payable approximate their fair market values due to the short-term nature of these instruments.

16.   Fair Value of Financial Instruments, continued

The table below sets forth our financial assets and liabilities that required disclosure of their fair values on a recurring basis and presents the carrying values and fair values as of March 31, 2014 and December 31, 2013 that were measured using the valuation techniques described above. The table excludes other financial instruments such as cash and cash equivalents, accounts receivable, and accounts payable because the carrying values associated with these instruments approximate fair value since their maturities are less than one year.

	March 31, 2014				December 31, 2013
Financial assets	Carrying Value		Fair Value		Carrying Value		Fair Value
Installment notes on manufactured homes, net	$	24,385	$	24,385	$	25,471	$	25,471
Collateralized receivables, net	$	111,442	$	111,442	$	109,821	$	109,821
Financial liabilities
Derivative instruments	$	—	$	—	$	97	$	97
Debt (excluding secured borrowing)	$	1,296,185	$	1,308,413	$	1,200,927	$	1,211,821
Secured borrowing	$	112,208	$	112,208	$	110,510	$	110,510
Lines of credit	$	16,441	$	16,441	$	181,383	$	181,383

The derivative instruments are the only financial liabilities that were required to be carried at fair value in the consolidated balance sheets for the periods indicated, and we have no financial assets that are required to be carried at fair value.

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Segment Reporting Identifiable Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	$ 1,864,074	$ 1,755,052
Cash and cash equivalents	9,305	4,753	61,045	29,508
Inventory of manufactured homes	6,541	5,810
Notes and other receivables, net	162,306	164,685
Other assets	66,006	68,936
TOTAL ASSETS	2,108,232	1,999,236
Real Property Operations Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	1,553,798	1,460,628
Cash and cash equivalents	9,227	5,336
Inventory of manufactured homes	0	0
Notes and other receivables, net	154,227	154,524
Other assets	61,186	64,342
TOTAL ASSETS	1,778,438	1,684,830
Home Sales and Home Rentals Segment [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Investment property, net	310,276	294,424
Cash and cash equivalents	78	(583)
Inventory of manufactured homes	6,541	5,810
Notes and other receivables, net	8,079	10,161
Other assets	4,820	4,594
TOTAL ASSETS	$ 329,794	$ 314,406

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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES:
Net income	$ 10,861	$ 8,271
Adjustments to reconcile net income to net cash provided by operating activities:
Gain from dispositions	(983)	(635)
Loss on valuation of derivative instruments	0	1
Share-based compensation	1,130	564
Depreciation and amortization	29,159	24,851
Amortization of deferred financing costs	277	726
Distributions from affiliate	(400)	(400)
Change in notes receivable from financed sales of inventory homes, net of repayments	120	5,111
Change in inventory, other assets and other receivables, net	1,506	1,855
Change in accounts payable and other liabilities	3,244	(2,489)
NET CASH PROVIDED BY OPERATING ACTIVITIES	44,674	27,633
INVESTING ACTIVITIES:
Investment in properties	(36,957)	(38,109)
Acquisition of properties	(104,142)	(55,618)
Investment in note receivable of acquired properties	0	49,441
Proceeds related to affiliate dividend distribution	400	400
Proceeds related to disposition of land	258	0
Proceeds (financing) related to disposition of assets and depreciated homes, net	2,824	593
Issuance of notes and other receivables	1,323	347
Increase in notes receivable, net	(272)	(183)
NET CASH USED IN INVESTING ACTIVITIES	(138,668)	(142,339)
FINANCING ACTIVITIES:
Proceeds from Issuance of Common Stock	186,431	262,134
Net proceeds from stock option exercise	53	100
Distributions to stockholders, OP unit holders, and preferred OP unit holders	(26,303)	(21,712)
Borrowings on lines of credit	148,414	149,631
Payments on lines of credit	(313,356)	(179,020)
Proceeds from issuance of other debt	105,549	6,973
Payments on other debt	(3,697)	(70,111)
Proceeds received from return of prepaid deferred financing costs	2,384	0
Payments for deferred financing costs	(929)	(1,752)
NET CASH PROVIDED BY FOR FINANCING ACTIVITIES	98,546	146,243
Net increase (decrease) in cash and cash equivalents	4,552	31,537
Cash and cash equivalents, beginning of period	4,753	29,508
Cash and cash equivalents, end of period	9,305	61,045
SUPPLEMENTAL INFORMATION:
Cash paid for interest	13,739	14,674
Cash paid for interest on mandatorily redeemable debt	803	809
Noncash investing and financing activities:
Unrealized gain on interest rate swaps	97	92
Reduction in secured borrowing balance	4,850	3,926
Change in dividends declared and outstanding	3,563	4,335
Conversion of Stock, Shares Converted	556	0
Noncash investing and financing activities at the date of acquisition:
Stock Issued During Period, Value, New Issues, Series A-3 Preferred OP Units	0	3,463
Acquisitions - release of note receivable and accrued interest	$ 0	$ 49,441

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Variable Interest Entities, Consolidated, Investment Property, net	$ 56,427	$ 56,805
Variable Interest Entities, Consolidated, Debt	$ 45,024	$ 45,209
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, shares authorized	10,000	10,000
Preferred stock, shares issued and outstanding	3,400	3,400
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized	90,000	90,000
Common stock, shares issued and outstanding	40,394	36,140

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Debt And Lines Of Credit

3 Months Ended

Mar. 31, 2014

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

Debt and Lines of Credit

The following table sets forth certain information regarding debt (in thousands):

	Principal Outstanding				Weighted Average Years to Maturity		Weighted Average Interest Rates
	March 31, 2014		December 31, 2013		March 31, 2014	December 31, 2013	March 31, 2014		December 31, 2013
Collateralized term loans - CMBS	$	643,096	$	644,844	5.9	6.1	5.4	%	5.4	%
Collateralized term loans - FNMA	364,966		366,019		7.9	8.1	3.1	%	3.6	%
Collateralized term loans - Northwestern	98,862		—		10.6	N/A	4.2	%	N/A
Aspen and Series B-3 preferred OP Units	47,022		47,022		7.6	7.6	6.9	%	6.9	%
Secured borrowing (see Note 4)	112,208		110,510		13.6	13.5	10.6	%	10.7	%
Mortgage notes, other	142,239		143,042		5.8	6.0	4.6	%	4.6	%
Total debt	$	1,408,393	$	1,311,437	7.3	7.2	5.1	%	5.0	%

Collateralized Term Loans

In January 2014, we and four of our subsidiaries obtained four mortgage loans (each, an “Individual Loan” and, together, the “Loan”) in the aggregate amount of $99.0 million from The Northwestern Mutual Life Insurance Company (“NM”) pursuant to a Master Loan Agreement with NM. Each Individual Loan accrues interest at a rate of 4.20% and matures on February 13, 2026. We and each of the four borrowers have guaranteed the Loan. The proceeds of the Loan were used to repay a portion of our senior secured line of credit.

9.      Debt and Lines of Credit, continued

The collateralized term loans totaling $1.1 billion as of March 31, 2014, are secured by 99 properties comprised of 40,256 sites representing approximately $707.0 million of net book value.

Aspen Preferred OP Units and Series B-3 Preferred OP units

The Aspen preferred OP units are convertible into 526,212 common shares based on a conversion price of $68 per share with a redemption date of January 1, 2024. The current preferred rate is 6.5%.

Secured Borrowing

See Note 4, "Transfers of Financial Assets", for additional information regarding our collateralized receivables and secured borrowing transactions.

Mortgage Notes

The mortgage notes totaling $142.2 million as of March 31, 2014, are collateralized by 18 properties comprised of 7,868 sites representing approximately $241.9 million of net book value.

Lines of Credit

We have a senior secured revolving credit facility with Citibank, N.A. and certain other lenders in the amount of $350.0 million (the "Facility"). The Facility has a four year term ending May 15, 2017, which can be extended for one additional year at our option, subject to the satisfaction of certain conditions as defined in the credit agreement. The credit agreement also provides for, subject to the satisfaction of certain conditions, additional commitments in an amount not to exceed $250.0 million. The Facility bears interest at a floating rate based on the Eurodollar rate plus a margin that is determined based on our leverage ratio calculated in accordance with the credit agreement, which can range from 1.65% to 2.90%. Based on our calculation of the leverage ratio as of March 31, 2014, the margin was 1.65%. At March 31, 2014 and December 31, 2013, we had approximately $15.0 million and $178.1 million respectively, outstanding under the Facility. At March 31, 2014 and December 31, 2013, approximately $2.0 million and $2.7 million, respectively, of availability was used to back standby letters of credit.

The Facility is secured by a first priority lien on all of our equity interests in each entity that owns all or a portion of the properties constituting the borrowing base and collateral assignments of our senior and junior debt positions in certain borrowing base properties.

We also have a $20.0 million secured line of credit agreement collateralized by a portion of our rental home portfolio. The net book value of the rental homes pledged as security for the loan must meet or exceed 200% of the outstanding loan balance. The terms of the agreement require interest only payments for the first five years, with the remainder of the term being amortized based on a 10 year term. The interest rate is the prime rate as published in the Wall Street Journal adjusted the first day of each calendar month plus 200 basis points with a minimum rate of 5.5%. At both March 31, 2014 and December 31, 2013, the effective interest rate was 5.5%, and there was no amount outstanding.

Lastly, we have a $12.0 million manufactured home floor plan facility renewable indefinitely until our lender provides us 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 6.0%. At March 31, 2014, the effective interest rate was 7.0%.  The outstanding balance was $1.4 million and $3.3 million at March 31, 2014 and December 31, 2013, respectively.

Covenants

The most restrictive of our debt agreements place limitations on secured borrowings and contain minimum fixed charge coverage, leverage, distribution and net worth requirements. At March 31, 2014, we were in compliance with all covenants.

XML

Document And Entity Information	3 Months Ended
	Mar. 31, 2014
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Trading Symbol	SUI
Entity Registrant Name	SUN COMMUNITIES INC
Entity Central Index Key	0000912593
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	40,394,411
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

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Equity Transactions

3 Months Ended

Mar. 31, 2014

Stockholders' Equity Note [Abstract]

Equity Transactions

Equity Transactions

In March 2014, we closed an underwritten registered public offering of 4,200,000 shares of common stock at a price of $44.45 per share. Subsequent to quarter end, on April 8, 2014, the underwriters exercised their greenshoe option of 630,000 shares of common stock at a price of $44.45 less the declared dividend of $0.65 per share. Net proceeds from the offering were $214.0 million after deducting underwriting discounts and the expenses related to the offering, of which $27.6 million was subsequent to the three months ended March 31, 2014. We used the net proceeds of the offering to repay borrowings outstanding under the Facility and intend to use any remaining net proceeds to fund possible future acquisitions of properties and for working capital and general corporate purposes.

In November 2004, our Board of Directors authorized us to repurchase up to 1,000,000 shares of our common stock.  We have 400,000 common shares remaining in the repurchase program.  No common shares were repurchased during the three months ended March 31, 2014 or 2013.  There is no expiration date specified for the buyback program.

Common OP unit holders can convert their common OP units into an equivalent number of shares of common stock at any time.  During the three months ended March 31, 2014 and 2013, there were no common OP units converted to shares of common stock.

Subject to certain limitations, Series A-1 preferred OP unit holders may convert their Series A-1 preferred OP units to shares of our common stock at any time. During the three months ended March 31, 2014, holders of Series A-1 preferred OP units converted 9,777 units to 23,846 shares of common stock. No such units were converted during the three months ended March 31, 2013.

Cash distributions of $0.65 per share were declared for the quarter ended March 31, 2014. On April 17, 2014, cash payments of approximately $27.6 million for aggregate distributions were made to common stockholders, common OP unitholders and restricted stockholders of record as of March 31, 2014. In addition, cash distributions of $0.4453 per share were declared on the Company's Series A cumulative redeemable preferred stock. On April 15, 2014, cash payments of approximately $1.5 million for aggregate distributions were made to Series A cumulative redeemable preferred stockholders of record as of April 2, 2014.

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Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
REVENUES
Income from real property	$ 87,497	$ 79,065
Revenue from home sales	10,123	12,856
Rental home revenue	9,402	7,361
Ancillary revenues, net	518	472
Interest income	3,354	2,963
Brokerage commissions and other income, net	287	196
Total revenues	111,181	102,913
COSTS AND EXPENSES
Property operating and maintenance	23,189	19,946
Real estate taxes	6,009	5,756
Cost of home sales	7,848	9,816
Rental home operating and maintenance	5,251	4,263
General and administrative - real property	7,813	6,790
General and administrative - home sales and rentals	2,499	2,435
Acquisition related costs	760	1,042
Depreciation and amortization	28,889	25,262
Interest	17,590	18,864
Interest on mandatorily redeemable debt	803	809
Total expenses	100,651	94,983
Income (loss) before income taxes and distributions from affiliates	10,530	7,930
Provision for state income taxes	(69)	(59)
Distributions from affiliate	400	400
Net income	10,861	8,271
Less: Preferred return to Series A-1 preferred OP units	672	573
Less: Preferred return to Series A-3 preferred OP units	45	30
Less: Amounts attributable to noncontrolling interests	784	410
Net income attributable to Sun Communities, Inc.	9,360	7,258
Less: Series A preferred stock distributions	1,514	1,514
Net income attributable to Sun Communities, Inc. common stockholders	$ 7,846	$ 5,744
Weighted average common shares outstanding:
Basic	37,140	30,774
Diluted	37,154	30,789
Earnings per share:
Basic	$ 0.21	$ 0.19
Diluted	$ 0.21	$ 0.19
Dividends per common share:	$ 0.65	$ 0.63

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Transfers Of Financial Assets

3 Months Ended

Mar. 31, 2014

Transfers and Servicing [Abstract]

Transfers Of Financial Assets

Transfers of Financial Assets

We completed various transactions with an unrelated entity involving our notes receivable under which we received cash proceeds in exchange for relinquishing our right, title and interest in certain notes receivable. We have no further obligations or rights with respect to the control, management, administration, servicing, or collection of the installment notes. However, we are subject to certain recourse provisions requiring us to purchase the underlying homes collateralizing such notes, in the event of a note default and subsequent repossession of the home by the unrelated entity. The recourse provisions are considered to be a form of continuing involvement, and therefore these transferred loans did not meet the requirements for sale accounting. We continue to recognize these transferred loans on our balance sheet and refer to them as collateralized receivables. The proceeds from the transfer have been recognized as a secured borrowing.

In the event of note default, and subsequent repossession of a manufactured home by the unrelated entity, the terms of the agreement require us to repurchase the manufactured home. Default is defined as the failure to repay the installment note according to contractual terms. The repurchase price is calculated as a percentage of the outstanding principal balance of the collateralized receivable, plus any outstanding late fees, accrued interest, legal fees, and escrow advances associated with the installment note.  The percentage used to determine the repurchase price of the outstanding principal balance on the installment note is based on the number of payments made on the note. In general, the repurchase price is determined as follows:

Number of Payments	Repurchase %
Less than or equal to 15	100	%
Greater than 15 but less than 64	90	%
Equal to or greater than 64 but less than 120	65	%
120 or more	50	%

The transferred assets have been classified as collateralized receivables in Notes and Other Receivables (see Note 5), and the cash proceeds received from these transactions have been classified as a secured borrowing in Debt (see Note 9) within the consolidated balance sheets. The balance of the collateralized receivables was $111.4 million (net of allowance of $0.8 million) and $109.8 million (net of allowance of $0.7 million) as of March 31, 2014 and December 31, 2013, respectively.  The outstanding balance on the secured borrowing was $112.2 million and $110.5 million as of March 31, 2014 and December 31, 2013, respectively.

The balances of the collateralized receivables and secured borrowings fluctuate. The balances increase as additional notes receivable are transferred and exchanged for cash proceeds. The balances are reduced as the related collateralized receivables are collected from the customers, or as the underlying collateral is repurchased. The change in the aggregate gross principal balance of the collateralized receivables is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	110,510
Financed sales of manufactured homes	6,548
Principal payments and payoffs from our customers	(1,854		)
Principal reduction from repurchased homes	(2,996		)
Total activity	1,698
Ending balance	$	112,208

The collateralized receivables earn interest income, and the secured borrowings accrue interest expense at the same interest rates. The amount of interest income and expense recognized was $2.7 million and $2.4 million for the three months endedMarch 31, 2014 and 2013, respectively.

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Investment Property

3 Months Ended

Mar. 31, 2014

Real Estate Investment Property, Net [Abstract]

Investment Property

Investment Property

The following table sets forth certain information regarding investment property (in thousands):

	March 31, 2014			December 31, 2013
Land	$	212,901		$	194,404
Land improvements and buildings	1,897,386			1,806,546
Rental homes and improvements	414,782			393,562
Furniture, fixtures, and equipment	67,432			65,086
Land held for future development	29,521			29,521
Investment property	2,622,022			2,489,119
Accumulated depreciation	(757,948		)	(734,067		)
Investment property, net	$	1,864,074		$	1,755,052

Land improvements and buildings consist primarily of infrastructure, roads, landscaping, clubhouses, maintenance buildings and amenities.

See Note 2, "Real Estate Acquisitions", for details on recent acquisitions.

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Derivative Instruments And Hedging Activities

3 Months Ended

Mar. 31, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments And Hedging Activities

Derivative Instruments and Hedging Activities

Our objective in using interest rate derivatives is to manage exposure to interest rate movements thereby minimizing the effect of interest rate changes and the effect it could have on future cash flows. Interest rate swaps and caps are used to accomplish this objective. We require hedging derivative instruments to be highly effective in reducing the risk exposure that they are designated to hedge. We formally designate any instrument that meets these hedging criteria as a hedge at the inception of the derivative contract. We do not enter into derivative instruments for speculative purposes.

The following table provides the terms of our interestrate derivative contracts that were in effect as of March 31, 2014:

Type	Purpose	Effective Date	Maturity Date	Notional  (in millions)		Based on	Variable Rate	Fixed Rate	Spread	Effective Fixed Rate
Cap	Cap Floating Rate	4/1/2012	4/1/2015	$	152.4	3 Month LIBOR	0.2466%	11.2650%	—%	N/A
Cap	Cap Floating Rate	10/3/2011	10/3/2016	$	10.0	3 Month LIBOR	0.2466%	11.0200%	—%	N/A

In January 2014, our interest rate swap agreement with a notional amount of $20.0 million expired. We did not enter into a new interest rate swap agreement.

In accordance with ASC Topic 815, Derivatives and Hedging, we have recorded the fair value of our derivative instruments designated as cash flow hedges on the balance sheet. See Note 16 for information on the determination of fair value for the derivative instruments.  The following table summarizes the fair value of derivative instruments included in our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in thousands):

	Asset Derivatives					Liability Derivatives
	Balance Sheet Location	Fair Value				Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments		March 31, 2014		December 31, 2013			March 31, 2014		December 31, 2013
Interest rate swaps and cap agreement	Other assets	$	—	$	—	Other liabilities	$	—	$	97
Total derivatives designated as hedging instruments		$	—	$	—		$	—	$	97

These valuation adjustments will only be realized under certain situations. For example, if we terminate contracts prior to maturity or if derivatives fail to qualify for hedge accounting, we would need to amortize amounts currently included in accumulated other comprehensive income into interest expense over the terms of the derivative contracts.  We did not terminate our swap prior to maturity, and it did not fail to qualify for hedge accounting; therefore, the net of valuation adjustments through the maturity date approximated zero.

Our hedges were highly effective and had minimal effect on income.  The following tables summarize the impact of derivative instruments for the three months ended March 31, 2014 and 2013 as recorded in the consolidated statements of operations (in thousands):

Derivatives in Cash Flow Hedging	Amount of Gain or (Loss) Recognized in OCI (Effective Portion)				Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)
	Three Months Ended March 31,					Three Months Ended March 31,
	2014		2013			2014		2013
Interest rate swaps and cap agreement	$	97	$	92	Interest expense	$	—	$	—
Total	$	97	$	92	Total	$	—	$	—

Our financial derivative instruments are designated and qualify as cash flow hedges and the effective portion of the gain or loss on such hedges are reported as a component of accumulated other comprehensive income in our consolidated balance sheets.

15. Derivative Instruments and Hedging Activities, continued

To the extent that the hedging relationship is not effective or does not qualify as a cash flow hedge, the ineffective portion is recorded in interest expense. Hedges that received designated hedge accounting treatment are evaluated for effectiveness at the time that they are designated as well as through the hedging period. No gain or loss was recognized in the consolidated financial

statements related to hedge ineffectiveness or to amounts excluded from effectiveness testing on our cash flow hedge during the three months ended March 31, 2014 or 2013.

Certain of our derivative instruments contain provisions that require us to provide ongoing collateralization on derivative instruments in a liability position.  As of December 31, 2013, we had collateral deposits recorded in other assets of approximately $0.7 million. As of March 31, 2014, we had no such deposits recorded.

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Share-Based Compensation

3 Months Ended

Mar. 31, 2014

Share-based Compensation [Abstract]

Share-Based Compensation

Share-Based Compensation

In February 2014, we granted 16,000 shares of restricted stock to an executive officer and a key employee under our Sun Communities, Inc. Equity Incentive Plan. The restricted shares had a fair value of $48.01 per share and will vest as follows: February 12, 2018: 20%; February 12, 2019: 30%; February 12, 2020: 35%; February 12, 2021: 10%; February 12, 2022: 5%. The fair value was determined by using the closing share price of our common stock on the date the shares were issued.

In February 2014, we granted 14,000 shares of restricted stock to our directors under our First Amended and Restated 2004 Non-Employee Director Option Plan. The awards vest on February 12, 2017, and had a fair value of $48.01 per share. The fair value was determined by using the closing share price of our common stock on the date the shares were issued.

During the three months ended March 31, 2014, 2,253 shares of common stock were issued in connection with the exercise of stock options and the net proceeds received were $0.1 million.

The vesting requirements for 5,000 restricted shares granted to our employees were satisfied during the three months ended March 31, 2014.

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Investment In Affiliates

3 Months Ended

Mar. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Investment In Affiliates

Investment in Affiliates

Origen Financial Services, LLC (“OFS LLC”)

At March 31, 2014 and 2013, we had a 22.9% ownership interest in OFS LLC, an entity formed to originate manufactured housing installment contracts.  We have suspended equity accounting as the carrying value of our investment is zero.

Origen Financial, Inc. (“Origen”)

Through Sun OFI, LLC, a taxable REIT subsidiary, we own 5,000,000 shares of common stock of Origen which approximates an ownership interest of 19%. Although it is no longer originating or servicing loans, Origen continues to manage an existing portfolio of manufactured home loans and asset backed securities. We have suspended equity accounting for this investment as the carrying value of our investment is zero. We do, however, receive income from dividends on our shares of Origen common stock.  Per Origen's earnings release dated February 19, 2014, the dividend payment represented a return of capital. Our investment in Origen had a market value of approximately $6.7 million based on a quoted market closing price of $1.33 per share from the OTC Pink Marketplace as of March 31, 2014.

The following table sets forth certain summarized unaudited financial information for Origen (amounts in thousands):

	Three Months Ended March 31,
	(unaudited)
	2014			2013
Revenues	$	11,207		$	12,673
Expenses	(11,304		)	(14,519		)
Net loss	$	(97	)	$	(1,846	)

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Debt And Lines Of Credit , Narrative - Collateralized Term Loans (Details) (Collateralized Mortgage Backed Securities [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Rate
Debt Instrument [Line Items]
Net book value of properties securing collateralized term loans	$ 707.0
Northwestern Mutual Life Insurance Company [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 99.0
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Maturity Date	Feb. 13, 2026
Properties securing debt [Member]
Debt Instrument [Line Items]
Number of properties securing a debt instument (in properties)	99
Number of sites	40,256

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Notes And Other Receivables

3 Months Ended

Mar. 31, 2014

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):

	March 31, 2014		December 31, 2013
Installment notes receivable on manufactured homes, net	$	24,385	$	25,471
Collateralized receivables, net (see Note 4)	111,442		109,821
Other receivables, net	26,479		29,393
Total notes and other receivables, net	$	162,306	$	164,685

Installment Notes Receivable on Manufactured Homes

The installment notes of $24.4 million (net of allowance of $0.1 million) and $25.5 million (net of allowance of $0.1 million) as of March 31, 2014 and December 31, 2013, respectively, are collateralized by manufactured homes. The notes represent financing provided by us to purchasers of manufactured homes primarily located in our communities and require monthly principal and interest payments. The notes have a net weighted average interest rate and maturity of 10.3% and 11.8 years as of March 31, 2014, and 8.9% and 11.9 years as of December 31, 2013.

The change in the aggregate gross principal balance of the installment notes is as follows (in thousands):

	Three Months Ended
	March 31, 2014
Beginning balance	$	25,575
Financed sales of manufactured homes	62
Principal payments and payoffs from our customers	(731		)
Principal reduction from repossessed homes	(389		)
Total activity	(1,058		)
Ending balance	$	24,517

Collateralized Receivables

Collateralized receivables represent notes receivable that were transferred to a third party, but did not meet the requirements for sale accounting (see Note 4). The receivables have a balance of $111.4 million (net of allowance of $0.8 million) and $109.8 million (net of allowance of $0.7 million ) as of March 31, 2014 and December 31, 2013, respectively.  The receivables have a net weighted average interest rate and maturity of 10.6% and 13.7 years as of March 31, 2014, and 10.7% and 13.6 years as of December 31, 2013.

Allowance for Losses for Collateralized and Installment Notes Receivable

The following table sets forth the allowance for collateralized and installment notes receivable as of March 31, 2014 (in thousands).

	Three Months Ended
	March 31, 2014
Beginning balance	$	(793	)
Lower of cost or market write-downs	149
Increase to reserve balance	(254		)
Total activity	(105		)
Ending balance	$	(898	)

5.      Notes and Other Receivables, continued

Other Receivables

As of March 31, 2014, other receivables were comprised of amounts due from residents for rent and water and sewer usage of $4.7 million (net of allowance of $0.5 million), home sale proceeds of $5.0 million, insurance receivables of $2.4 million, insurance settlement of $3.7 million, rebates and other receivables of $4.2 million and two notes receivable of $4.3 million and $2.2 million. The $4.3 million note bears interest at LIBOR plus 475 basis points, is secured by senior mortgages on two RV communities, a pledge of $4.0 million in Series A-3 Preferred OP Units, a subordinated interest in cash collateral account and equity interests in another RV community and is due on May 31, 2014.  The $2.2 million note bears interest at 8.0% for the first two years and 7.9% for the remainder of the loan, is secured by the senior mortgage on one manufactured housing ("MH") community and a deed of land, and is due on December 31, 2016. As of December 31, 2013, other receivables were comprised of amounts due from residents for rent and water and sewer usage of $6.9 million (net of allowance of $0.7 million), home sale proceeds of $5.7 million, insurance receivables of $2.0 million, insurance settlement of $3.7 million, rebates and other receivables of $4.6 million and two notes receivable of $4.3 million and $2.2 million.

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Intangibles

3 Months Ended

Mar. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Disclosure [Text Block]

Intangible Assets

Our intangible assets include in-place leases from acquisitions, capitalized costs in relation to leasing costs and franchise fees. These intangible assets are recorded within Other assets on the consolidated balance sheets. The accumulated amortization and gross carrying amounts are as follows (in thousands):

		March 31, 2014					December 31, 2013
Intangible Asset	Useful Life	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
In-place leases	7 years	$	28,251	$	(9,130	)	$	26,961	$	(8,239	)
Capitalized leasing costs greater than 1 year	7 years	12,940		(5,543		)	13,359		(6,757		)
Franchise fees	15 years	770		(48		)	770		(29		)
Total		$	41,961	$	(14,721	)	$	41,090	$	(15,025	)

During 2014, in connection with our acquisitions, we purchased in-place leases valued at approximately $1.3 million with a useful life of seven years.

The aggregate net amortization expenses related to the intangible assets are as follows (in thousands):

	Three Months Ended March 31,
Intangible Asset	2014		2013
In-place leases	$	891	$	730
Capitalized leasing costs greater than 1 year	356		354
Franchise fees	31		—
Total	$	1,278	$	1,084

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Consolidated Variable Interest Entities

3 Months Ended

Mar. 31, 2014

DisclosureofVariableInterestEntities [Abstract]

DisclosureOfVariableInterestEntities [Text Block]

   Consolidated Variable Interest Entities

Variable interest entities ("VIEs") that are consolidated include Rudgate Village SPE, LLC, Rudgate Clinton SPE, LLC and Rudgate Clinton Estates SPE, LLC (the “Rudgate Borrowers”). We concluded that the Rudgate Borrowers qualify as VIEs as we are the primary beneficiary and hold a controlling financial interest in these entities due to our power to direct the activities that most significantly impact the economic performance of the entities, as well as our obligation to absorb the most significant losses and our rights to receive significant benefits from these entities.  As such, the transactions and accounts of these VIEs are included in the accompanying consolidated financial statements.

The following table summarizes the assets and liabilities included in our consolidated balance sheet after appropriate eliminations (in thousands):

	March 31, 2014			December 31, 2013
ASSETS
Investment property, net	$	56,427		$	56,805
Other assets	3,798			3,926
Total Assets	$	60,225		$	60,731
LIABILITIES AND STOCKHOLDERS' EQUITY
Debt	$	45,024		$	45,209
Other liabilities	7,666			6,564
Noncontrolling interests	(389		)	(537		)
Total Liabilities and Stockholders' Equity	$	52,301		$	51,236

Investment property, net and other assets related to the consolidated VIEs comprised approximately 2.9% and 3.0% of our consolidated total assets and debt and other liabilities comprised approximately 3.4% and 3.2% of our consolidated total liabilities at March 31, 2014 and December 31, 2013, respectively. Noncontrolling interest related to the consolidated VIEs comprised less than 1.0% of our consolidated total equity at March 31, 2014 and December 31, 2013.

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Equity Transactions Narrative (Details) (USD $)	3 Months Ended			1 Months Ended	3 Months Ended	0 Months Ended	3 Months Ended			1 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Common Stock	Apr. 17, 2014 Common Stock Dividend Paid [Member]	Mar. 31, 2014 Preferred Stock [Member]	Apr. 15, 2014 Preferred Stock [Member] Dividend Paid [Member]	Mar. 31, 2014 Repurchase Agreements [Member] Common Stock	Mar. 31, 2013 Repurchase Agreements [Member] Common Stock	Nov. 30, 2004 Repurchase Agreements [Member] Common Stock	Mar. 31, 2014 Registered public offering [Member] Common Stock	Apr. 08, 2014 Registered public offering [Member] Common Stock	Mar. 31, 2014 Registered public offering [Member] Common Stock	Mar. 31, 2014 Conversion of Common OP Units [Member] Common OP Units [Member]	Dec. 31, 2013 Conversion of Common OP Units [Member] Common OP Units [Member]	Mar. 31, 2014 Series A-1 Preferred OP Units [Member]	Mar. 31, 2014 Series A-1 Preferred OP Units [Member] Common OP Units [Member]
Class of Stock [Line Items]
Authorized to be repurchased (in shares)									1,000,000
Remaining number of shares authorized to be repurchased (in shares)							400,000
Stock Repurchased During Period, Shares							0	0
Conversion of Common OP Units to common stock (in shares)													0	0	9,777	23,846
New shares issued (in shares)										4,200,000	630,000
Weighted average sale price (in dollars per share)										$ 44.45		$ 44.45
Proceeds from issuance of common stock	$ 186,431,000	$ 262,134,000								$ 214,000,000	$ 27,600,000
Dividends per common share:	$ 0.65	$ 0.63	$ 0.65
Dividends, Common Stock, Cash				27,600,000
Preferred Stock, Dividends Per Share, Declared					$ 0.4453
Dividends, Preferred Stock, Cash						$ 1,500,000

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Segment Reporting Segment Reporting, Seasonality (Details) (Real Property Operations Segment [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013
Real Property Operations Segment [Member]
Segment Reporting Information [Line Items]
Expected Annual Transient RV Revenue				$ 28.9	$ 17.4
Transient RV Rental Revenue Recognized, Percentage	13.00%	41.00%	18.00%	28.00%	15.00%	30.00%	15.00%	40.00%

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Debt And Lines Of Credit , Narrative - Line of Credit (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Rate	Dec. 31, 2013
Line of Credit Facility [Line Items]
Weighted average interest rate	5.10%	5.00%
Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity	$ 350.0
Line of credit, outstanding balance	15.0	178.1
Letters of credit outstanding, amount	2.0	2.7
Effective interest rate, minimum	1.65%
Effective interest rate, maximum	2.90%
Line of credit variable interest rate	1.65%
Debt Instrument, Maturity Date	May 15, 2017
Line of credit, additional borrowing capacity	250.0
Line of credit - rental home portfolio [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity	20.0
Line of credit, outstanding balance	0
Line of credit, outstanding loan balance, percent	200.00%
Basis points	200.00%
Debt Instrument, Interest Rate, Effective Percentage	5.50%
Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Line of credit, borrowing capacity	12.0
Line of credit, outstanding balance	$ 1.4	$ 3.3
Weighted average interest rate	7.00%
Basis points	100.00%
Prime Rate [Member] | Line of credit - manufactured home floor plan facility [Member]
Line of Credit Facility [Line Items]
Effective interest rate, maximum	6.00%
Minimum [Member] | Line of credit - rental home portfolio [Member]
Line of Credit Facility [Line Items]
Stated interest rate, minimum	5.50%

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Investment In Affiliates (Tables)

3 Months Ended

Mar. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Schedule of Equity Method Investments [Table Text Block]

The following table sets forth certain summarized unaudited financial information for Origen (amounts in thousands):

	Three Months Ended March 31,
	(unaudited)
	2014			2013
Revenues	$	11,207		$	12,673
Expenses	(11,304		)	(14,519		)
Net loss	$	(97	)	$	(1,846	)

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Notes And Other Receivables Collateralized notes receivable - Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Rate	Dec. 31, 2013 Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Notes Receivable, Net	$ 162,306	$ 164,685
Collateralized receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	800	700
Receivable with Imputed Interest, Effective Yield (Interest Rate)	10.60%	10.70%
Receivable With Imputed Interest, Term	13 years 8 months 12 days	13 years 7 months 6 days
Carrying Value [Member] | Collateralized receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Notes Receivable, Net	$ 111,442	$ 109,821

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Income Taxes

3 Months Ended

Mar. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

We have elected to be taxed as a real estate investment trust (“REIT”) as defined under Section 856(c) of the Internal Revenue Code of 1986 (“Code”), as amended. In order for us to qualify as a REIT, at least ninety-five percent (95%) of our gross income in any year must be derived from qualifying sources. In addition, a REIT must distribute at least ninety percent (90%) of its REIT ordinary taxable income to its stockholders.

Qualification as a REIT involves the satisfaction of numerous requirements (some on an annual and quarterly basis) established under highly technical and complex Code provisions for which there are only 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 March 31, 2014.

As a REIT, we generally will not be subject to 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 (including any applicable alternative minimum tax). Even if we qualify as a REIT, we may be subject to certain state and local income taxes and to U.S. federal income and excise taxes on our undistributed income.

SHS, our taxable REIT subsidiary, is subject to U.S. federal income taxes. Our deferred tax assets and liabilities reflect the impact of temporary differences between the amounts of assets and liabilities for financial reporting purposes and the bases 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 and depreciation. A federal deferred tax asset of $1.0 million is included in other assets in our consolidated balance sheets as of March 31, 2014 and December 31, 2013.

We had no unrecognized tax benefits as of March 31, 2014 and 2013. We expect no significant increases or decreases in unrecognized tax benefits due to changes in tax positions within one year of March 31, 2014.

We classify certain state taxes as income taxes for financial reporting purposes.  We record Texas Margin Tax as income tax in our financial statements, and we recorded a provision for state income taxes of approximately $0.1 million for the three months ended March 31, 2014 and 2013.

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Commitments And Contingencies

3 Months Ended

Mar. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

Commitments and Contingencies

On June 4, 2010, we settled all of the claims arising out of the litigation filed in 2004 by TJ Holdings, LLC in the Superior Court of Guilford County, North Carolina and the associated arbitration proceeding commenced by TJ Holdings in Southfield, Michigan. Under the terms of the settlement agreement, in which neither party admitted any liability whatsoever, we paid TJ Holdings $360,000. In addition, pursuant to this settlement, TJ Holdings’ percentage ownership interest in Sun/Forest, LLC will be increased on a one time basis, in the event of a sale or refinance of all of the SunChamp Properties, to between 9.03% and 28.99% depending on our average closing stock price as reported by the NYSE during the 30 days preceding the sale or refinance of all the SunChamp Properties. Once this percentage ownership interest has been adjusted, there will be no further adjustments from subsequent sales or refinances of the SunChamp Properties. The likelihood of a sale or refinancing of all of the SunChamp properties is not probable as these properties continue to see growth potential nor do we have a need to refinance all of the properties, so we do not expect it to have a material adverse impact on our results of operations or financial condition.

We are involved in various other 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.

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Notes And Other Receivables Installment notes receivable on manufactured homes - Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Rate	Dec. 31, 2013 Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Notes Receivable, Net	$ 162,306	$ 164,685
Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	100	100
Receivable with Imputed Interest, Effective Yield (Interest Rate)	10.30%	8.90%
Receivable With Imputed Interest, Term	11 years 9 months 18 days	11 years 10 months 24 days
Carrying Value [Member] | Installment notes receivable on manufactured homes, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts and Notes Receivable, Net	$ 24,385	$ 25,471

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Real Estate Acquisitions , Schedule of 2014 Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended		0 Months Ended		2 Months Ended	1 Months Ended		3 Months Ended
	Jan. 08, 2014 Wine Country [Member]	Mar. 31, 2014 Wine Country [Member]	Jan. 10, 2014 Castaways RV Resort [Member]	Mar. 31, 2014 Castaways RV Resort [Member]	Feb. 18, 2014 Seashore RV Resort [Member]	Feb. 14, 2014 Driftwood RV Resort [Member]	Mar. 31, 2014 Driftwood RV Resort [Member]	Mar. 31, 2014 Total 2014 Acquisitions [Domain]
Business Acquisition [Line Items]
Number of sites	166		369		685	698
Number of Potential Sites in Community		34		25			30
At acquistion date
Investment in property	$ 13,250		$ 36,597		$ 24,258	$ 31,301		$ 105,406
In-place leases and other intangible assets	0		0		500	790		1,290
Other assets	9		2		12	4		27
Other liabilities	(60)		(497)		(1,188)	(836)		(2,581)
Total identifiable assets and liabilities assumed	13,199		36,102		23,582	31,259		104,142
Consideration
Business Combination, Consideration Transferred	$ 13,199		$ 36,102		$ 23,582	$ 31,259		$ 104,142

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Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 10,861	$ 8,271
Unrealized gain on interest rate swaps	97	92
Total comprehensive income	10,958	8,363
Less: Comprehensive income attributable to the noncontrolling interests	792	419
Comprehensive income attributable to Sun Communities, Inc.	$ 10,166	$ 7,944

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Real Estate Acquisitions

3 Months Ended

Mar. 31, 2014

Business Combinations [Abstract]

Real Estate Acquisitions

Real Estate Acquisitions

In February 2014, we acquired Driftwood Camping Resort ("Driftwood"), a recreational vehicle ("RV") community with 698 sites and expansion potential of approximately 30 sites located in Clermont, New Jersey, and Seashore Campsites RV and Campground ("Seashore"), an RV community with 685 sites located in Cape May, New Jersey.

In January 2014, we acquired Castaways RV Resort & Campground ("Castaways"), an RV community with 369 sites and expansion potential of approximately 25 sites located in Worcester County, Maryland, and Wine Country RV Resort ("Wine Country"), an RV community with 166 sites and expansion potential of approximately 34 sites located in Paso Robles, California.

The following tables summarize the amounts of the assets acquired and liabilities assumed at the acquisition dates and the consideration paid for acquisitions completed in 2014 (in thousands):

At Acquisition Date	Wine Country			Castaways			Seashore			Driftwood			Total
Investment in property	$	13,250		$	36,597		$	24,258		$	31,301		$	105,406
In-place leases and other intangible assets	—			—			500			790			1,290
Other assets	9			2			12			4			27
Other liabilities	(60		)	(497		)	(1,188		)	(836		)	(2,581		)
Total identifiable assets and liabilities assumed	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142
Consideration
Cash consideration transferred	$	13,199		$	36,102		$	23,582		$	31,259		$	104,142

The purchase price allocations for Wine Country, Castaways, Seashore and Driftwood are preliminary and may be adjusted as final costs and final valuations are determined.

The amount of revenue and net income included in the consolidated statements of operations for the three months ended March 31, 2014 for all acquisitions described above is set forth in the following table (in thousands):

	Three Months Ended March 31, 2014
	(unaudited)
Revenue	$	1,053
Net income	$	359

2.      Real Estate Acquisitions, continued

The following unaudited pro forma financial information presents the results of our operations for the three months ended March 31, 2014 and 2013 as if the properties were acquired on January 1, 2013. The unaudited pro forma results reflect certain adjustments for items that are not expected to have a continuing impact, such as adjustments for acquisition 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 acquisitions been consummated on January 1, 2013 (in thousands, except per-share data).

	Three Months Ended March 31,
	(unaudited)
	2014		2013
Total revenues	$	112,132	$	106,100
Net income attributable to Sun Communities, Inc. common stockholders	$	8,684	$	7,059
Net income per share attributable to Sun Communities, Inc. common stockholders - basic	$	0.23	$	0.23
Net income per share attributable to Sun Communities, Inc. common stockholders - diluted	$	0.23	$	0.23

Acquisition related costs of approximately $0.8 million and $1.0 million have been incurred for the three months ended March 31, 2014 and 2013, respectively, and are presented as “Acquisition related costs” in our consolidated statements of operations.

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Consolidated Variable Interest Entities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014 Rate	Dec. 31, 2013 Rate
Variable Interest Entity [Line Items]
Investment Property, net	$ 56,427	$ 56,805
Other Assets	3,798	3,926
Total Assets	60,225	60,731
Debt	45,024	45,209
Other Liabilities	7,666	6,564
Noncontrolling interests	(389)	(537)
Total Liabilities and Stockholder's Equity	$ 52,301	$ 51,236
VIE as a Percentage of Consolidated Assets	2.90%	3.00%
VIE as a Percentage of Consolidated Liabilities	3.40%	3.20%
VIE as a Percentage of Total Equity	1.00%	1.00%

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Income Taxes , Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Tax Contingency [Line Items]
Minimum Percent of Income From Qualifying Sources to Allow For Real Estate Investment Trust Classification	95.00%
Required Minimum Percent of Taxable Income Distributed to Stock Holders	90.00%
Deferred Tax Assets, Net	$ 1,000,000		$ 1,000,000
Provision for state income taxes	$ 69,000	$ 59,000

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Subsequent Event

1 Months Ended

Apr. 30, 2014

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Event

We have evaluated our financial statements for subsequent events through the date that this Form 10-Q was issued.

In April 2014, we acquired Saco/Old Orchard Beach KOA RV resort with 127 sites located in Saco, Maine, for a purchase price of approximately $4.4 million. The initial accounting and purchase price allocation for this business acquisition will be completed during the second quarter of 2014.

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Derivative Instruments And Hedging Activities , Statement of Operation Location (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI (Effective Portion)	$ 97	$ 92
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	0	0
Interest rate swaps and cap agreement [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in OCI (Effective Portion)	97	92
Interest rate swaps and cap agreement [Member] | Interest expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	$ 0	$ 0

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2014

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 from continuing operations were as follows (in thousands, except per share data):

	Three Months Ended March 31,
Numerator	2014		2013
Net income attributable to common stockholders	$	7,846	$	5,744
Denominator
Weighted average common shares outstanding	36,495		30,427
Weighted average unvested restricted stock outstanding	645		347
Basic weighted average common shares and unvested restricted stock outstanding	37,140		30,774
Add: dilutive securities	14		15
Diluted weighted average common shares and securities	37,154		30,789
Earnings per share available to common stockholders:
Basic	$	0.21	$	0.19
Diluted	$	0.21	$	0.19

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

for the three months ended March 31, 2014 and 2013 (amounts in thousands):

	Three Months Ended March 31,
	2014	2013
Common OP units	2,069	2,069
Series A-1 preferred OP units	446	455
Series A-3 preferred OP units	40	40
Aspen preferred OP units	1,325	1,325
Total securities	3,880	3,889

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Segment Reporting

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

We group our operating segments into reportable segments that provide similar products and services. Each operating segment has discrete financial information evaluated regularly by the Company's chief operating decision maker in evaluating and assessing performance. We have two reportable segments: (i) Real Property Operations and (ii) Home Sales and Rentals. The Real Property Operations segment owns, operates, and develops MH communities and RV communities and is in the business of acquiring, operating, and expanding MH and RV communities.  The Home Sales and Rentals segment offers manufactured home sales and leasing services to tenants and prospective tenants of our communities. 

Transactions between our segments are eliminated in consolidation.  Transient RV revenue is included in Real Property Operations’ revenues and is expected to approximate $28.9 million annually. This transient revenue was recognized 27.7% in the first quarter and is expected to be recognized 18.3% in the second quarter, 40.7% in the third quarter and 13.3% in the fourth quarter of 2014. In 2013, transient revenue was $17.4 million and was recognized 40.0% in the first quarter, 15.0% in the second quarter, 30.0% in the third quarter and 15.0% in the fourth quarter.

A presentation of segment financial information is summarized as follows (amounts in thousands):

	Three Months Ended March 31, 2014									Three Months Ended March 31, 2013
	Real Property Operations			Home Sales and Home Rentals			Consolidated			Real Property Operations			Home Sales and Home Rentals			Consolidated
Revenues	$	87,497		$	19,525		$	107,022		$	79,065		$	20,217		$	99,282
Operating expenses/Cost of sales	29,198			13,099			42,297			25,702			14,079			39,781
Net operating income/Gross profit	58,299			6,426			64,725			53,363			6,138			59,501
Adjustments to arrive at net income (loss):
Ancillary, interest and other income, net	4,159			—			4,159			3,631			—			3,631
General and administrative	(7,813		)	(2,499		)	(10,312		)	(6,790		)	(2,435		)	(9,225		)
Acquisition related costs	(752		)	(8		)	(760		)	(1,042		)	—			(1,042		)
Depreciation and amortization	(18,356		)	(10,533		)	(28,889		)	(16,796		)	(8,466		)	(25,262		)
Interest	(17,588		)	(2		)	(17,590		)	(18,555		)	(309		)	(18,864		)
Interest on mandatorily redeemable debt	(803		)	—			(803		)	(809		)	—			(809		)
Distributions from affiliate	400			—			400			400			—			400
Provision for state income taxes	(69		)	—			(69		)	(59		)	—			(59		)
Net income (loss)	17,477			(6,616		)	10,861			13,343			(5,072		)	8,271
Less:  Preferred return to A-1 preferred OP units	672			—			672			573			—			573
Less: Preferred return to A-3 preferred OP units	45			—			45			30			—			30
Less:  Amounts attributable to noncontrolling interests	1,325			(541		)	784			896			(486		)	410
Net income (loss) attributable to Sun Communities, Inc.	15,435			(6,075		)	9,360			11,844			(4,586		)	7,258
Less: Series A preferred stock distributions	1,514			—			1,514			1,514			—			1,514
Net income (loss) attributable to Sun Communities, Inc. common stockholders	$	13,921		$	(6,075	)	$	7,846		$	10,330		$	(4,586	)	$	5,744

12. Segment Reporting, continued

	March 31, 2014						December 31, 2013
	Real Property Operations		Home Sales and Home Rentals		Consolidated		Real Property Operations		Home Sales and Home Rentals			Consolidated
Identifiable assets:
Investment property, net	$	1,553,798	$	310,276	$	1,864,074	$	1,460,628	$	294,424		$	1,755,052
Cash and cash equivalents	9,227		78		9,305		5,336		(583		)	4,753
Inventory of manufactured homes	—		6,541		6,541		—		5,810			5,810
Notes and other receivables	154,227		8,079		162,306		154,524		10,161			164,685
Other assets	61,186		4,820		66,006		64,342		4,594			68,936
Total assets	$	1,778,438	$	329,794	$	2,108,232	$	1,684,830	$	314,406		$	1,999,236