Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues
Fixed lease income	$ 634.1	$ 618.8	$ 1,662.4	$ 1,586.4
Home sales	105.3	117.8	281.7	326.7
Service, retail, dining and entertainment	186.2	205.5	492.7	498.9
Interest	5.5	15.2	15.4	40.6
Brokerage commissions and other, net	8.8	26.0	23.0	45.3
Total Revenues	939.9	983.3	2,475.2	2,497.9
Expenses
Property operating and maintenance	213.4	196.1	561.8	532.9
Real estate tax	31.5	29.3	94.2	89.4
Home costs and selling	74.3	84.5	203.0	233.5
Service, retail, dining and entertainment	163.3	173.4	445.1	438.2
General and administrative	74.8	67.0	218.6	193.8
Catastrophic event-related charges, net	0.9	(3.1)	10.4	(2.2)
Business combinations	0.2	0.0	0.4	3.0
Depreciation and amortization	172.4	162.6	510.5	482.3
Asset impairments (see Note 16)	0.2	1.2	32.5	10.1
Goodwill impairment (see Note 6)	0.0	44.8	0.0	369.9
Loss on extinguishment of debt	0.8	0.0	1.4	0.0
Interest	87.7	84.1	267.2	239.9
Interest on mandatorily redeemable preferred OP units / equity	0.0	0.8	0.0	2.7
Total Expenses	819.5	840.7	2,345.1	2,593.5
Income / (Loss) Before Other Items	120.4	142.6	130.1	(95.6)
Gain / (loss) on remeasurement of marketable securities	0.0	6.1	0.0	(8.0)
Loss on foreign currency exchanges	(4.5)	(6.5)	(6.2)	(6.5)
Gain / (loss) on dispositions of properties	178.7	(0.7)	186.6	(2.9)
Other income / (expense), net	(0.8)	(3.7)	5.6	(5.5)
Gain / (loss) on dispositions of properties	0.1	(1.3)	(1.0)	(3.1)
Total Income / (Loss) from Nonconsolidated Affiliates	2.1	1.4	6.5	0.5
Gain on remeasurement of investment in nonconsolidated affiliates	1.2	0.0	6.5	(4.5)
Current tax benefit / (expense) (see Note 13)	(0.9)	4.6	6.5	13.9
Deferred tax benefit	7.1	2.3	16.5	14.6
Net Income / (Loss)	305.2	135.6	338.1	(124.9)
Less: Preferred stock distribution	3.2	3.4	9.6	9.0
Less: Income / (loss) attributable to noncontrolling interests	13.3	12.1	15.1	(1.5)
Net income / (loss) attributable to SUI common shareholders	$ 288.7	$ 120.1	$ 313.4	$ (132.4)
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic (in shares)	124.0	123.5	123.8	123.4
Diluted weighted average common shares outstanding - diluted (in shares)	124.0	123.5	126.5	123.8
Earnings per share:
Basic earning per share (in dollars per share)	$ 2.31	$ 0.97	$ 2.52	$ (1.06)
Diluted earning per share (in dollars per share)	$ 2.31	$ 0.97	$ 2.51	$ (1.07)