Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Carrying Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Revolving credit facility	$ 0	$ 130,000
Total debt	4,375,046	4,515,998
Carrying Value | Total asset-backed securitizations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	1,876,087	1,890,842
Carrying Value | AMH 2014-SFR2 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	461,885	465,864
Carrying Value | AMH 2014-SFR3 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	477,078	480,467
Carrying Value | AMH 2015-SFR1 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	501,756	505,738
Carrying Value | AMH 2015-SFR2 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	435,368	438,773
Carrying Value | Total unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	2,498,959	2,495,156
Carrying Value | 2028 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	496,548	495,956
Carrying Value | 2029 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	396,966	396,543
Carrying Value | 2031 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	441,912	441,133
Carrying Value | 2032 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	583,024	581,533
Carrying Value | 2051 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	291,421	291,189
Carrying Value | 2052 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	289,088	288,802
Fair Value
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Revolving credit facility	0	130,000
Total debt	3,968,318	4,140,351
Fair Value | Total asset-backed securitizations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	1,888,771	1,905,542
Fair Value | AMH 2014-SFR2 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	464,745	469,192
Fair Value | AMH 2014-SFR3 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	480,236	484,350
Fair Value | AMH 2015-SFR1 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	505,005	509,714
Fair Value | AMH 2015-SFR2 securitization
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	438,785	442,286
Fair Value | Total unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	2,079,547	2,104,809
Fair Value | 2028 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	465,010	463,920
Fair Value | 2029 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	377,688	377,680
Fair Value | 2031 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	343,737	347,243
Fair Value | 2032 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	495,720	504,294
Fair Value | 2051 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	180,378	189,750
Fair Value | 2052 unsecured senior notes, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total asset-backed securitizations and unsecured senior notes, net	$ 217,014	$ 221,922