Escrow Deposits, Prepaid Expenses and Other Assets - Notes Receivable (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($) property	Dec. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($) property	Dec. 31, 2017 USD ($) property
Schedule of Equity Method Investments [Line Items]
Note receivable, gross		$ 30,700	$ 0	$ 7,000
Unamortized discount		1,200	0	$ 1,500
Notes receivable		$ 36,834	$ 6,012
Single family homes
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property		1,330	691	923
Bulk Portfolio Disposition | Single family homes | Disposal group, not discontinued operations
Schedule of Equity Method Investments [Line Items]
Number of real estate properties sold | property	215
Bulk Portfolio Disposition | Secured promissory note maturing june 2025 | Disposal group, not discontinued operations
Schedule of Equity Method Investments [Line Items]
Note receivable, gross	$ 30,700
Interest rate through October 31, 2019	2.70%
Interest rate thereafter through maturity	4.50%
Unamortized discount		$ 900
Notes receivable		$ 29,800