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Fair Value Measurements - Additional Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) equipment | Dec. 31, 2021 USD ($) engine equipment | Dec. 31, 2021 USD ($) equipment airframe | Dec. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) engine | Dec. 31, 2020 USD ($) airframe
Derivative instruments |  |  |  |  |  |
Fair value of notes receivable | $ 117,700 | $ 117,700 | $ 117,700 | $ 159,200 | $ 159,200 | $ 159,200
Fair value of notes payable | 1,827,400 | 1,827,400 | 1,827,400 | 1,691,000 | 1,691,000 | 1,691,000
Interest expense | 67,985 |  |  | 63,024 |  |
Write-down of equipment | 7,715 |  |  | 20,540 |  |
Equipment held for lease |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment | 3,500 |  |  | 4,900 |  |
Net book value of equipment held for operating lease | 1,991,368 | $ 1,991,368 | $ 1,991,368 | 1,886,613 | $ 1,886,613 | $ 1,886,613
Assets To Be Sold Or Parted Out |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment | 3,900 |  |  |  |  |
Number of assets impaired |  | 3 | 1 |  | 10 | 2
Assets To Be Sold Or Parted Out | Equipment held for lease |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Net book value of equipment held for operating lease | $ 36,000 | $ 36,000 | $ 36,000 |  |  |
Number of assets previously impaired | equipment | 22 | 22 | 22 |  |  |
Impaired Assets |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment | $ 3,800 |  |  |  |  |
Number of assets impaired | engine |  | 7 |  |  | 7 |
Nonrecurring |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment | 7,700 |  |  | 20,500 |  |
Nonrecurring | Assets To Be Sold Or Parted Out |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment |  |  |  | 15,200 |  |
Nonrecurring | Impaired Assets |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Write-down of equipment |  |  |  | 5,300 |  |
Interest rate contracts |  |  |  |  |  |
Derivative instruments |  |  |  |  |  |
Net fair value of swap asset (liability) | 7,300 | $ 7,300 | $ 7,300 | (4,000) | $ (4,000) | $ (4,000)
Fair value of interest rate swap, asset | 8,000 | 8,000 | 8,000 |  |  |
Fair value of interest rate swap, liability | 700 | $ 700 | $ 700 |  |  |
Interest expense | $ 2,400 |  |  | $ 2,000 |  |

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