Reportable Segments - Income from Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Other income	$ 14,195	$ 14,185	$ 27,736	$ 24,706
Total revenues	365,305	330,104	725,507	633,832
Expenses:
Real estate taxes	19,182	17,896	38,639	35,746
Sales and marketing, gross	6,409	6,298	11,323	12,474
Membership sales commissions, deferred, net	(957)	(1,438)	(1,540)	(2,937)
Total expenses	301,968	267,092	575,291	502,642
Income before equity in income of unconsolidated joint ventures	63,337	63,012	150,216	131,131
Annual membership subscriptions
Revenues:
Revenue from contract with customer	15,592	14,267	30,749	27,921
Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	9,535	9,207	16,686	19,221
Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(6,367)	(6,454)	(10,451)	(13,881)
Property management
Expenses:
Property management and cost of ancillary services	19,099	16,560	36,970	31,940
Property Operations
Revenues:
Rental income	271,516	251,420	552,620	496,149
Other income	14,195	14,185	27,736	24,706
Total revenues	320,888	297,847	646,327	578,927
Expenses:
Operating and maintenance	113,081	101,351	215,671	188,981
Real estate taxes	19,182	17,896	38,639	35,746
Sales and marketing, gross	6,409	6,298	11,323	12,474
Membership sales commissions, deferred, net	(957)	(1,438)	(1,540)	(2,937)
Ancillary operating expenses	6,008	4,744	11,027	8,379
Total expenses	171,960	153,136	326,964	286,198
Income before equity in income of unconsolidated joint ventures	148,928	144,711	319,363	292,729
Property Operations | Annual membership subscriptions
Revenues:
Revenue from contract with customer	15,592	14,267	30,749	27,921
Property Operations | Membership upgrade sales current period, gross
Revenues:
Revenue from contract with customer	9,535	9,207	16,686	19,221
Property Operations | Membership upgrade sales upfront payments, deferred, net
Revenues:
Revenue from contract with customer	(6,367)	(6,454)	(10,451)	(13,881)
Property Operations | Ancillary services
Revenues:
Revenue from contract with customer	16,417	15,222	28,987	24,811
Expenses:
Property management and cost of ancillary services	9,138	7,725	14,874	11,615
Property Operations | Property management
Expenses:
Property management and cost of ancillary services	19,099	16,560	36,970	31,940
Home Sales and Rentals Operations
Revenues:
Rental income	3,814	4,278	7,775	8,571
Total revenues	40,078	29,293	71,178	49,238
Expenses:
Operating and maintenance	1,226	1,312	2,628	2,555
Home selling expenses	1,576	1,346	3,039	2,652
Total expenses	34,635	26,726	62,463	44,302
Income before equity in income of unconsolidated joint ventures	5,443	2,567	8,715	4,936
Home Sales and Rentals Operations | Home sales And brokered resales
Revenues:
Revenue from contract with customer	36,264	25,015	63,403	40,667
Expenses:
Property management and cost of ancillary services	$ 31,833	$ 24,068	$ 56,796	$ 39,095