v3.25.1
Leases - Narrative (Details) - ft²
Dec. 31, 2023
Dec. 30, 2023
Leases [Abstract]
Office space (in square feet)
83,939
125,468
X
- Definition
Lessee, Operating Lease, Office Space
+ References
No definition available.
+ Details
Name:
alk_LesseeOperatingLeaseOfficeSpace
Namespace Prefix:
alk_
Data Type:
dtr-types1:areaItemType
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