Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

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



	Year Ended
	December 31, 2019			December 31, 2018			December 31, 2017
Numerator
Net Income attributable to Sun Communities, Inc. common stockholders	$	160,265		$	105,493		$	65,021
Less allocation to restricted stock awards	(1,170		)	(831		)	(455		)
Basic earnings - Net income attributable to common stockholders after allocation to restricted stock awards	$	159,095		$	104,662		$	64,566
Add allocation to restricted stock awards	1,170			831			455
Diluted earnings - Net income attributable to common stockholders after allocation to restricted stock awards	$	160,265		$	105,493		$	65,021



Denominator
Weighted average common shares outstanding	88,460		81,387		76,084
Add: dilutive stock options	1		2		2
Add: dilutive restricted stock	454		651		625
Diluted weighted average common shares and securities	88,915		82,040		76,711
Earnings per share available to common stockholders after allocation
Basic earnings per share	$	1.80	$	1.29	$	0.85
Diluted earnings per share	$	1.80	$	1.29	$	0.85

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

The following table presents the outstanding securities that were excluded from the computation of diluted earnings per share for the years ended December 31, 2019, 2018 and 2017 (amounts in thousands):



	Year Ended
	December 31, 2019	December 31, 2018	December 31, 2017
Common OP units	2,420	2,726	2,746
Series A-4 preferred stock	—	1,063	1,085
A-3 preferred OP units	40	40	40
A-1 preferred OP units	309	332	345
A-4 preferred OP units	—	410	424
Aspen preferred OP units	1,284	1,284	1,284
Series C preferred OP units	310	314	316
Series D preferred OP units	489	—	—
Total securities	4,852	6,169	6,240