Debt - Schedule of Debt (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 05, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Apr. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt		$ 4,462,933,000		$ 4,462,933,000			$ 3,924,181,000
Unamortized discounts on unsecured senior notes		(37,658,000)		(37,658,000)			(15,561,000)
Deferred financing costs, net		(33,063,000)		(33,063,000)			(28,142,000)
Total debt per balance sheet		4,392,212,000		4,392,212,000			3,880,478,000
Amortization of financing costs				5,502,000	$ 3,828,000
Asset-backed securitizations, unsecured senior notes and term loan facility
Debt Instrument [Line Items]
Amortization of financing costs		1,700,000	$ 1,500,000	3,300,000	$ 3,000,000
Secured Debt
Debt Instrument [Line Items]
Total debt		$ 1,912,933,000		$ 1,912,933,000			1,924,181,000
Secured Debt | AH4R 2014-SFR2 securitization
Debt Instrument [Line Items]
Interest rate		4.42%		4.42%
Total debt		$ 470,705,000		$ 470,705,000			473,594,000
Secured Debt | AH4R 2014-SFR3 securitization
Debt Instrument [Line Items]
Interest rate		4.40%		4.40%
Total debt		$ 486,042,000		$ 486,042,000			488,790,000
Secured Debt | AH4R 2015-SFR1 securitization
Debt Instrument [Line Items]
Interest rate		4.14%		4.14%
Total debt		$ 511,859,000		$ 511,859,000			514,868,000
Secured Debt | AH4R 2015-SFR2 securitization
Debt Instrument [Line Items]
Interest rate		4.36%		4.36%
Total debt		$ 444,327,000		$ 444,327,000			446,929,000
Senior Notes | 2028 unsecured senior notes
Debt Instrument [Line Items]
Interest rate		4.25%		4.25%
Effective interest rate		4.08%		4.08%
Total debt		$ 500,000,000		$ 500,000,000			500,000,000
Senior Notes | 2029 unsecured senior notes
Debt Instrument [Line Items]
Interest rate		4.90%		4.90%
Total debt		$ 400,000,000		$ 400,000,000			400,000,000
Senior Notes | 2031 unsecured senior notes, net
Debt Instrument [Line Items]
Interest rate		2.38%		2.38%
Effective interest rate		2.46%		2.46%
Total debt		$ 450,000,000		$ 450,000,000			450,000,000
Senior Notes | 2032 unsecured senior notes, net
Debt Instrument [Line Items]
Interest rate		3.63%		3.63%		3.625%
Total debt		$ 600,000,000		$ 600,000,000		$ 600,000,000	0
Senior Notes | 2051 unsecured senior notes, net
Debt Instrument [Line Items]
Interest rate		3.38%		3.38%
Total debt		$ 300,000,000		$ 300,000,000			300,000,000
Senior Notes | 2052 unsecured senior notes, net
Debt Instrument [Line Items]
Interest rate		4.30%		4.30%		4.30%
Total debt		$ 300,000,000		$ 300,000,000		$ 300,000,000	0
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate		2.89%		2.89%
Total debt		$ 0		$ 0			350,000,000
Maximum borrowing capacity		1,250,000,000		1,250,000,000
Outstanding letters of credit		$ 2,500,000		$ 2,500,000			$ 1,600,000
Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate				1.10%
Line of Credit | Revolving Credit Facility | LIBOR | Subsequent Event
Debt Instrument [Line Items]
Basis spread on variable rate	0.90%