IndexIndefinite-Lived Domestic Slots and Routes
| Name | IndefiniteLivedDomesticSlotsAndRoutes |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Indefinite-Lived Domestic Slots and Routes | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Carrying amount, (original cost adjusted for any previously recognized amortization and impairment) as of the balance sheet date, of domestic slots, route authorities, airport operating and gate lease rights and related intangibles. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |