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Fair Value - Carrying Value and Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Carrying Value |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | $ 1,899,602 | $ 1,908,346
Unsecured senior notes, net | 2,492,610 | 1,622,132
Revolving credit facility | 0 | 350,000
Total debt | 4,392,212 | 3,880,478
Carrying Value | AH4R 2014-SFR2 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 467,786 | 470,039
Carrying Value | AH4R 2014-SFR3 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 482,895 | 485,005
Carrying Value | AH4R 2015-SFR1 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 508,245 | 510,585
Carrying Value | AH4R 2015-SFR2 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 440,676 | 442,717
Carrying Value | 2028 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 495,561 | 495,166
Carrying Value | 2029 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 396,271 | 395,990
Carrying Value | 2031 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 440,614 | 440,095
Carrying Value | 2032 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 580,524 | 0
Carrying Value | 2051 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 291,035 | 290,881
Carrying Value | 2052 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 288,605 | 0
Fair Value |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 1,923,694 | 1,952,026
Unsecured senior notes, net | 2,211,173 | 1,766,149
Revolving credit facility | 0 | 350,000
Total debt | 4,134,867 | 4,068,175
Fair Value | AH4R 2014-SFR2 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 473,303 | 479,464
Fair Value | AH4R 2014-SFR3 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 488,865 | 495,659
Fair Value | AH4R 2015-SFR1 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 514,567 | 521,639
Fair Value | AH4R 2015-SFR2 securitization |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Asset-backed securitization | 446,959 | 455,264
Fair Value | 2028 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 477,660 | 554,895
Fair Value | 2029 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 393,816 | 463,840
Fair Value | 2031 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 361,454 | 442,953
Fair Value | 2032 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 526,092 | 0
Fair Value | 2051 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | 207,963 | 304,461
Fair Value | 2052 unsecured senior notes, net |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |
Unsecured senior notes, net | $ 244,188 | $ 0

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