Leases - Summary of Lease Income Types Relating to Lease Payments Along With the Total Other Rental Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Leased Assets [Line Items]
Total lease revenue	$ 2,747,585	$ 2,623,559	$ 2,366,594
Rental income	2,873,964	2,735,180	2,463,997
Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	2,684,179	2,558,354	2,300,246
Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	63,406	65,205	66,348
Residential and Non-Residential Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	2,640,758	2,510,511	2,263,166
Residential and Non-Residential Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	2,578,565	2,446,516	2,202,133
Residential and Non-Residential Rent [Member] | Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	62,193	63,995	61,033
Utility Recoveries (RUBS Income) [Member]
Operating Leased Assets [Line Items]
Total lease revenue	87,534	81,984	75,569
Utility Recoveries (RUBS Income) [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	86,628	81,140	74,846
Utility Recoveries (RUBS Income) [Member] | Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	906	844	723
Parking Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	44,530	43,770	41,499
Parking Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	44,081	43,335	40,934
Parking Rent [Member] | Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	449	435	565
Other Lease Revenue [Member]
Operating Leased Assets [Line Items]
Total lease revenue	(25,237)	(12,706)	(13,640)
Other Lease Revenue [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	(25,095)	(12,637)	(17,667)
Other Lease Revenue [Member] | Non-Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	(142)	(69)	4,027
Parking Revenue [Member]
Operating Leased Assets [Line Items]
Rental income	40,836	37,338	26,789
Other Revenue [Member]
Operating Leased Assets [Line Items]
Rental income	85,543	74,283	70,614
Other Rental Income [Member]
Operating Leased Assets [Line Items]
Rental income	$ 126,379	$ 111,621	$ 97,403