XML 70 R51.htm IDEA: XBRL DOCUMENT
v3.25.3

Net Investment in Sales-type Leases - Narrative (Details) | Sep. 30, 2025 engine aircraft | Dec. 31, 2024 aircraft engine
--- | --- | ---
Leases [Abstract] |  |
Sales-type lease, number of aircrafts | aircraft | 16 | 15
Sales-type lease, number of engines | engine | 1 | 1

X
- Definition Lessor, Sales-type Lease, Number of Aircraft + References No definition available. + Details
Name: | al_LessorSalesTypeLeaseNumberOfAircraft
Namespace Prefix: | al_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Lessor, Sales-type Lease, Number of Engines + References No definition available. + Details
Name: | al_LessorSalesTypeLeaseNumberOfEngines
Namespace Prefix: | al_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration