Leases - Summary of Lease Income Types Relating to Lease Payments (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Operating Leased Assets [Line Items]
Total lease revenue	$ 629,156	$ 1,253,205
Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	611,389	1,216,852
Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	17,767	36,353
Residential and Retail Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	615,902	1,226,892
Residential and Retail Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	598,209	1,190,729
Residential and Retail Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	17,693	36,163
Parking Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	9,419	18,628
Parking Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	9,332	18,469
Parking Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	87	159
Storage Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	924	1,887
Storage Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	937	1,856
Storage Rent [Member] | Retail Lease [Member]
Operating Leased Assets [Line Items]
Total lease revenue	(13)	31
Pet Rent [Member]
Operating Leased Assets [Line Items]
Total lease revenue	2,911	5,798
Pet Rent [Member] | Residential Leases [Member]
Operating Leased Assets [Line Items]
Total lease revenue	$ 2,911	$ 5,798