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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt - Schedule of Mortgage Loans (Details) $ in Thousands		9 Months Ended
Debt - Schedule of Mortgage Loans (Details) $ in Thousands	Sep. 30, 2021 USD ($) extension	Sep. 30, 2021 USD ($) extension	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Less: deferred financing costs, net	$ (43,819)	$ (43,819)
Long-term Debt	7,813,137	7,813,137
Debt Instrument, Unamortized Discount	$ 12,329	$ 12,329
London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, variable rate	0.08%	0.08%
Mortgage Loans
Debt Instrument [Line Items]
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 3,868,079	$ 3,868,079	$ 4,832,133
Less: deferred financing costs, net	(10,216)	(10,216)	(12,035)
Long-term Debt	3,857,863	3,857,863	4,820,098
Debt Instrument, Unamortized Discount	2,025	2,025
IH1 2017-1 \| Mortgage Loans
Debt Instrument [Line Items]
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 993,723	$ 993,723	994,787
Fixed interest rate	4.23%	4.23%
Debt Instrument, Term		10 years
Debt Instrument, Unamortized Discount	$ 2,025	$ 2,025	2,289
IH 2017-2, IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4 [Member] \| Mortgage Loans
Debt Instrument [Line Items]
Debt Instrument, Term		2 years
Debt Instrument, Extended Term		1 year
IH 2017-2, IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4 [Member] \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	0.76%
Debt Instrument, Term		2 years
Debt Instrument, Number Of Extensions \| extension	3	3
IH 2017-2, IH 2018-1, IH 2018-2, IH 2018-3, IH 2018-4 [Member] \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	1.51%
Debt Instrument, Number Of Extensions \| extension	5	5
IH 2017-2 \| Mortgage Loans
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.15%	1.15%
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 184,400	$ 184,400	612,506
IH 2017-2 \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	0.91%
IH 2017-2 \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	1.86%
IH 2018-1 \| Mortgage Loans
Debt Instrument [Line Items]
Weighted Average Interest Rate	0.96%	0.96%
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 570,134	$ 570,134	646,021
IH 2018-1 \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	0.76%
IH 2018-1 \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	2.06%
IH 2018-2 \| Mortgage Loans
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.13%	1.13%
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 629,863	$ 629,863	693,988
IH 2018-2 \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	0.95%
IH 2018-2 \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	2.30%
IH 2018-3 \| Mortgage Loans
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.20%	1.20%
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 819,039	$ 819,039	1,036,561
IH 2018-3 \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	1.05%
IH 2018-3 \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	2.30%
IH 2018-4 \| Mortgage Loans
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.30%	1.30%
Long-Term Debt, Net Of Unamortized Discount (Premium)	$ 670,920	$ 670,920	$ 848,270
IH 2018-4 \| Mortgage Loans \| Minimum
Debt Instrument [Line Items]
Basis spread	1.15%
IH 2018-4 \| Mortgage Loans \| Maximum
Debt Instrument [Line Items]
Basis spread	2.25%