Reportable Segments - Income from Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Other income	$ 56,144	$ 50,298	$ 46,008
Total revenues	1,447,080	1,316,403	1,118,803
Expenses:
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)
Total expenses	1,151,618	1,044,225	882,786
Income before equity in income of unconsolidated joint ventures	295,462	272,119	236,017
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)
Property management
Expenses:
Cost of ancillary services	74,083	65,979	57,967
Property Operations
Revenues:
Rental income	1,103,357	1,015,879	907,305
Other income			46,008
Total revenues	1,291,467	1,187,535	1,044,098
Expenses:
Property operating and maintenance	437,764	393,256	348,394
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)
Ancillary operating expenses	21,561	18,400	13,929
Total expenses	656,839	594,503	515,002
Income before equity in income of unconsolidated joint ventures	634,628	593,032	529,096
Property Operations | Annual membership subscriptions
Revenues:
Revenue from contract with customer	63,215	58,251	53,085
Property Operations | Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	34,661	36,270	21,739
Property Operations | Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(21,703)	(25,079)	(12,062)
Property Operations | Gross revenues from ancillary services
Revenues:
Revenue from contract with customer	55,793	51,916	28,023
Expenses:
Cost of ancillary services	28,969	25,529	12,920
Property Operations | Property management
Expenses:
Cost of ancillary services	74,083	65,979	57,967
Home Sales and Rentals Operations
Revenues:
Rental income	15,244	16,696	16,438
Total revenues	139,630	117,297	63,525
Expenses:
Property operating and maintenance	5,393	5,727	5,946
Home selling expenses	5,760	5,138	4,572
Total expenses	121,196	105,959	57,253
Income before equity in income of unconsolidated joint ventures	18,434	11,338	6,272
Home Sales and Rentals Operations | Home sales and brokered resales
Revenues:
Revenue from contract with customer	124,386	100,601	47,087
Expenses:
Cost of ancillary services	$ 110,043	$ 95,094	$ 46,735