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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Debt - Schedule of Debt (Details) - USD ($)		3 Months Ended
Debt - Schedule of Debt (Details) - USD ($)	Apr. 15, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Debt, gross		$ 2,922,374,000		$ 2,848,492,000
Unamortized discounts on unsecured senior notes		(3,537,000)		(3,658,000)
Deferred financing costs, net		(25,960,000)		(27,422,000)
Total debt per balance sheet		2,892,877,000		2,817,412,000
Amortization of financing costs		1,829,000	$ 1,849,000
Asset-backed Securitizations, Unsecured Senior Notes and Term Loan Facility
Debt Instrument [Line Items]
Amortization of financing costs		1,500,000	$ 1,500,000
Secured Debt
Debt Instrument [Line Items]
Debt, gross		$ 1,942,374,000		1,948,492,000
Secured Debt \| 2014-SFR 2
Debt Instrument [Line Items]
Interest Rate		4.42%
Debt, gross		$ 478,399,000		479,981,000
Secured Debt \| 2014-SFR 3
Debt Instrument [Line Items]
Interest Rate		4.40%
Debt, gross		$ 493,862,000		495,392,000
Secured Debt \| 2015-SFR 1
Debt Instrument [Line Items]
Interest Rate		4.14%
Debt, gross		$ 519,255,000		520,957,000
Secured Debt \| 2015-SFR 2
Debt Instrument [Line Items]
Interest Rate		4.36%
Debt, gross		$ 450,858,000		452,162,000
Senior Notes \| 2028 unsecured senior notes, net
Debt Instrument [Line Items]
Interest Rate		4.25%
Effective interest rate		4.08%
Debt, gross		$ 500,000,000		500,000,000
Senior Notes \| 2029 unsecured senior notes, net
Debt Instrument [Line Items]
Interest Rate		4.90%
Debt, gross		$ 400,000,000		400,000,000
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Interest Rate		1.31%
Debt, gross		$ 80,000,000		0
Maximum borrowing capacity		800,000,000.0
Outstanding letters of credit		$ 1,500,000		$ 1,500,000
Line of Credit \| Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,250,000,000
Line of Credit \| Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.20%
Line of Credit \| Revolving Credit Facility \| LIBOR \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.00%