Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Rental income	$ 1,118,601	$ 1,032,575	$ 923,743
Other income	56,144	50,298	46,008
Interest income	7,430	7,016	7,154
Income from other investments, net	8,553	4,555	4,026
Total revenues	1,447,080	1,316,403	1,118,803
Expenses:
Property operating and maintenance	443,157	398,983	354,340
Real estate taxes	74,145	72,671	66,120
Sales and marketing, gross	23,513	23,743	17,332
Membership sales commissions, deferred, net	(3,196)	(5,075)	(1,660)
Depreciation and amortization	202,362	188,444	155,131
Home selling expenses and ancillary operating expenses	27,321	23,538	18,500
General and administrative	44,857	39,576	39,276
Casualty-related charges/(recoveries), net	0	0	0
Other expenses	8,646	4,241	2,567
Early debt retirement	1,156	2,784	10,786
Interest and related amortization	116,562	108,718	102,771
Total expenses	1,151,618	1,044,225	882,786
Gain (loss) on sale of real estate and impairment, net	0	(59)	0
Income before equity in income of unconsolidated joint ventures	295,462	272,119	236,017
Equity in income of unconsolidated joint ventures	3,363	3,881	5,399
Consolidated net income	298,825	276,000	241,416
Income allocated to non-controlling interests – Common OP Units	(14,198)	(13,522)	(13,132)
Net income available for Common Stockholders	284,611	262,462	228,268
Other comprehensive income (loss):
Adjustment for fair market value of swap	15,595	3,524	380
Consolidated comprehensive income	314,420	279,524	241,796
Comprehensive income allocated to non-controlling interests – Common OP Units	(15,005)	(13,692)	(13,154)
Comprehensive income attributable to Common Stockholders	$ 299,399	$ 265,816	$ 228,626
Earnings per Common Share – Basic (usd per share)	$ 1.53	$ 1.43	$ 1.26
Earnings per Common Share – Fully Diluted (usd per share)	$ 1.53	$ 1.43	$ 1.25
Weighted average Common Shares outstanding – Basic (shares)	185,780	182,917	181,828
Weighted average Common Shares outstanding – Fully Diluted (shares)	195,255	192,883	192,555
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:
Revenue from contract with customer	63,215	58,251	53,085
Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	34,661	36,270	21,739
Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(21,703)	(25,079)	(12,062)
Gross revenues from home sales, brokered resales and ancillary services
Revenues:
Revenue from contract with customer	180,179	152,517	75,110
Expenses:
Cost of goods and services sold	139,012	120,623	59,656
Property management
Expenses:
Cost of goods and services sold	$ 74,083	$ 65,979	$ 57,967