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v3.24.0.1

Debt - Long-term Debt (Details) | 3 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2023 debtInstrumentExtensionOption | Dec. 31, 2023 USD ($) debtInstrumentExtensionOption | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jun. 30, 2022 | Sep. 30, 2021 | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt |  | $ 4,517,158,000 | $ 4,581,628,000 |  |  |  |  |  |  |
Unamortized discounts on unsecured senior notes |  | (32,981,000) | (36,099,000) |  |  |  |  |  |  |
Deferred financing costs, net |  | (22,530,000) | (29,531,000) |  |  |  |  |  |  |
Total debt per balance sheet |  | 4,461,647,000 | 4,515,998,000 |  |  |  |  |  |  |
Amortization of debt issuance costs |  | 12,279,000 | 11,673,000 | $ 8,790,000 |  |  |  |  |  |
Asset-Backed Securitizations and Unsecured Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization of debt issuance costs |  | 7,000,000 | 6,800,000 | $ 6,100,000 |  |  |  |  |  |
Secured Debt |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Total debt |  | $ 1,877,158,000 | 1,901,628,000 |  |  |  |  |  |  |
Secured Debt | AMH 2014-SFR2 securitization |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.42% |  |  |  |  |  |  |  |
Total debt |  | $ 461,498,000 | 468,138,000 |  |  |  |  |  |  |
Secured Debt | AMH 2014-SFR3 securitization |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.40% |  |  |  |  |  |  |  |
Total debt |  | $ 477,064,000 | 482,964,000 |  |  |  |  |  |  |
Secured Debt | AH4R 2015-SFR1 securitization |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.14% |  |  |  |  |  |  |  |
Total debt |  | $ 502,299,000 | 508,672,000 |  |  |  |  |  |  |
Potential weighted-average interest rate increase contingent upon repayment |  | 3.00% |  |  |  |  |  |  |  |
Secured Debt | AMH 2015-SFR2 securitization |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.36% |  |  |  |  |  |  |  |
Total debt |  | $ 436,297,000 | 441,854,000 |  |  |  |  |  |  |
Potential weighted-average interest rate increase contingent upon repayment |  | 3.00% |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |
Deferred financing costs, net |  |  |  |  |  |  |  |  |  | $ (1,900,000)
Senior Notes | 2029 unsecured senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.90% |  |  |  |  |  |  | 4.90% |
Total debt |  | $ 400,000,000 | 400,000,000 |  |  |  |  |  |  |
Deferred financing costs, net |  |  |  |  |  |  |  |  | $ (1,000,000) |
Senior Notes | 2031 unsecured senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 2.38% |  |  |  | 2.375% |  |  |  |
Effective interest rate |  | 2.46% |  |  |  | 2.46% |  |  |  |
Total debt |  | $ 450,000,000 | 450,000,000 |  |  |  |  |  |  |
Senior Notes | 2032 unsecured senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 3.63% |  |  | 3.625% |  |  |  |  |
Total debt |  | $ 600,000,000 | 600,000,000 |  |  |  |  |  |  |
Senior Notes | 2051 unsecured senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 3.38% |  |  |  | 3.375% |  |  |  |
Total debt |  | $ 300,000,000 | 300,000,000 |  |  |  |  |  |  |
Senior Notes | 2052 unsecured senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 4.30% |  |  | 4.30% |  |  |  |  |
Total debt |  | $ 300,000,000 | 300,000,000 |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest rate |  | 6.38% |  |  |  |  |  |  |  |
Total debt |  | $ 90,000,000 | 130,000,000 |  |  |  |  |  |  |
Credit facility maximum borrowing capacity |  | $ 1,250,000,000 |  |  |  |  | $ 1,250,000,000 | $ 800,000,000 |  |
Number of extension options | debtInstrumentExtensionOption | 2 | 2 |  |  |  |  |  |  |  |
Extension period | 6 months | 6 months |  |  |  |  |  |  |  |
Letters of credit outstanding |  | $ 2,700,000 | $ 4,000,000 |  |  |  |  |  |  |
Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 0.10% | 0.90% |  |  |  |  |  |  |  |

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