Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Rental income	$ 1,178,959	$ 1,118,601	$ 1,032,575
Other income	67,407	56,144	50,298
Interest income	9,037	7,430	7,016
Income from other investments, net	8,703	8,553	4,555
Total revenues	1,489,423	1,447,080	1,316,403
Expenses:
Property operating and maintenance	469,912	443,157	398,983
Real estate taxes	77,993	74,145	72,671
Membership sales and marketing	20,974	20,317	18,668
Depreciation and amortization	203,738	202,362	188,444
Home selling expenses and ancillary operating expenses	27,453	27,321	23,538
General and administrative	47,280	44,857	39,576
Casualty-related charges/(recoveries), net	0	0	0
Other expenses	5,768	8,646	4,241
Early debt retirement	68	1,156	2,784
Interest and related amortization	132,342	116,562	108,718
Total expenses	1,169,366	1,151,618	1,044,225
Income from operations	320,057	295,462	272,178
Gain/(Loss) on sale of real estate and impairment, net	(3,581)	0	(59)
Income tax benefit	10,488	0	0
Equity in income of unconsolidated joint ventures	2,713	3,363	3,881
Consolidated net income	329,677	298,825	276,000
Income allocated to non-controlling interests – Common OP Units	(15,470)	(14,198)	(13,522)
Redeemable perpetual preferred stock dividends	(16)	(16)	(16)
Net income available for Common Stockholders	314,191	284,611	262,462
Other comprehensive income (loss):
Adjustment for fair market value of swap	(13,058)	15,595	3,524
Consolidated comprehensive income	316,619	314,420	279,524
Comprehensive income allocated to non-controlling interests – Common OP Units	(14,862)	(15,005)	(13,692)
Redeemable perpetual preferred stock dividends	(16)	(16)	(16)
Comprehensive income attributable to Common Stockholders	$ 301,741	$ 299,399	$ 265,816
Earnings per Common Share – Basic (usd per share)	$ 1.69	$ 1.53	$ 1.43
Earnings per Common Share – Fully Diluted (usd per share)	$ 1.69	$ 1.53	$ 1.43
Weighted average Common Shares outstanding – Basic (in shares)	186,061	185,780	182,917
Weighted average Common Shares outstanding – Fully Diluted (in shares)	195,429	195,255	192,883
Redeemable Perpetual Preferred  Stock
Expenses:
Redeemable perpetual preferred stock dividends	$ (16)	$ (16)	$ (16)
Other comprehensive income (loss):
Redeemable perpetual preferred stock dividends	(16)	(16)	(16)
Annual membership subscriptions
Revenues:
Contract revenue	65,379	63,215	58,251
Membership upgrade sales
Revenues:
Contract revenue	14,719	12,958	11,191
Gross revenues from home sales, brokered resales and ancillary services
Revenues:
Contract revenue	145,219	180,179	152,517
Expenses:
Cost of services	107,668	139,012	120,623
Property management
Expenses:
Cost of services	$ 76,170	$ 74,083	$ 65,979