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Consolidated Variable Interest Entities - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Assets
Investment property, net	$ 14,464.7	$ 14,443.6
Cash, cash equivalents and restricted cash	104.2	42.7	$ 68.7	$ 90.4
Other assets, net	702.3	668.5
Total Assets	17,011.1	16,940.7
Liabilities and Other Equity
Secured debt	3,506.3	3,534.7
Advanced reservation deposits and rent	423.3	344.5
Accrued expenses and accounts payable	406.3	313.7
Total Liabilities	9,781.6	9,506.8
Consolidated entities (see Note 8 at VIEs)	0.7	0.0
Land improvements and buildings	$ 11,619.4	$ 11,682.2
Assets related to VIEs, percentage	0.80%	0.80%
Variable Interest Entity, Primary Beneficiary
Assets
Investment property, net	$ 127.6	$ 132.3
Cash, cash equivalents and restricted cash	5.0	2.9
Other intangible assets, net	0.1	0.1
Other assets, net	0.7	0.4
Total Assets	133.4	135.7
Liabilities and Other Equity
Secured debt	3.2	3.2
Advanced reservation deposits and rent	1.6	0.4
Accrued expenses and accounts payable	0.4	24.1
Total Liabilities	5.2	27.7
Temporary equity	10.9	10.7
Consolidated entities (see Note 8 at VIEs)	0.7	0.0
Total Liabilities and Other Equity	$ 16.8	$ 38.4
Sun NG Cisco Grove RV LLC
Liabilities and Other Equity
Ownership percentage	95.40%
Sun NG Cisco Grove RV LLC | Third-Party
Liabilities and Other Equity
Ownership percentage	4.60%
Sun NG Kittatinny RV LLC
Liabilities and Other Equity
Ownership percentage	96.00%
Sun NG Kittatinny RV LLC | Third-Party
Liabilities and Other Equity
Ownership percentage	4.00%
Sun NG River Beach LLC
Liabilities and Other Equity
Ownership percentage	96.10%
Sun NG River Beach LLC | Third-Party
Liabilities and Other Equity
Ownership percentage	3.90%
Sun NG Coyote Ranch RV LLC
Liabilities and Other Equity
Ownership percentage	96.10%
Sun NG Coyote Ranch RV LLC | Third-Party
Liabilities and Other Equity
Ownership percentage	3.90%
Sun NG Beaver Brook RV LLC
Liabilities and Other Equity
Ownership percentage	98.60%
Sun NG Beaver Brook RV LLC | Third-Party
Liabilities and Other Equity
Ownership percentage	1.40%

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