Real Estate Acquisitions and Dispositions, Pro Forma (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Revenues		$ 2,969,700	$ 2,272,600	$ 1,398,300
Net income attributable to Sun Communities, Inc. common stockholders		242,000	380,200	$ 131,600
Revenue	$ 2,330,000	3,091,300	2,726,400
Net income	$ 390,900	$ 241,200	$ 440,500
Net income per share attributable to SUI common shareholders - basic	$ 3.47	$ 1.99	$ 3.89
Net income per share attributable to SUI common shareholders - diluted	$ 3.40	$ 1.99	$ 3.88
Cabrillo Isle and Emerald Coast [Member]
Business Acquisition [Line Items]
Revenues	$ 6,400	$ 353,600
Net income attributable to Sun Communities, Inc. common stockholders	$ 500	$ 13,800