Reportable Segments - Income from Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Other income	$ 15,580	$ 12,053	$ 43,316	$ 36,759
Total revenues	380,969	347,235	1,106,476	981,067
Expenses:
Real estate taxes	17,734	18,408	56,373	54,154
Sales and marketing, gross	7,143	6,513	18,466	18,987
Membership sales commissions, deferred, net	(1,206)	(1,468)	(2,746)	(4,405)
Total expenses	308,178	273,993	883,469	776,634
Income before equity in income of unconsolidated joint ventures	69,044	73,242	219,260	204,374
Annual membership subscriptions
Revenues:
Revenue from contract with customer	16,254	15,127	47,003	43,048
Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	11,085	10,122	27,771	29,343
Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(7,777)	(7,253)	(18,228)	(21,134)
Property management
Expenses:
Property management and cost of ancillary services	19,003	17,015	55,973	48,955
Property Operations
Revenues:
Rental income	285,272	265,431	837,892	761,580
Other income	15,580	12,053	43,316	36,759
Total revenues	338,208	312,239	984,535	891,166
Expenses:
Operating and maintenance	121,692	107,626	337,363	296,607
Real estate taxes	17,734	18,408	56,373	54,154
Sales and marketing, gross	7,143	6,513	18,466	18,987
Membership sales commissions, deferred, net	(1,206)	(1,468)	(2,746)	(4,405)
Ancillary operating expenses	5,644	5,355	16,671	13,733
Total expenses	179,775	162,234	506,739	448,432
Income before equity in income of unconsolidated joint ventures	158,433	150,005	477,796	442,734
Property Operations | Annual membership subscriptions
Revenues:
Revenue from contract with customer	16,254	15,127	47,003	43,048
Property Operations | Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	11,085	10,122	27,771	29,343
Property Operations | Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(7,777)	(7,253)	(18,228)	(21,134)
Property Operations | Ancillary services
Revenues:
Revenue from contract with customer	17,794	16,759	46,781	41,570
Expenses:
Property management and cost of ancillary services	9,765	8,785	24,639	20,401
Property Operations | Property management
Expenses:
Property management and cost of ancillary services	19,003	17,015	55,973	48,955
Home Sales and Rentals Operations
Revenues:
Rental income	3,744	4,142	11,519	12,713
Total revenues	38,497	31,954	109,675	81,191
Expenses:
Operating and maintenance	1,489	1,538	4,117	4,093
Home selling expenses	1,436	1,203	4,475	3,855
Total expenses	33,384	28,787	95,847	73,088
Income before equity in income of unconsolidated joint ventures	5,113	3,167	13,828	8,103
Home Sales and Rentals Operations | Home sales And brokered resales
Revenues:
Revenue from contract with customer	34,753	27,812	98,156	68,478
Expenses:
Property management and cost of ancillary services	$ 30,459	$ 26,046	$ 87,255	$ 65,140