XML 38 R53.htm IDEA: XBRL DOCUMENT
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Related-Party Transactions (Details) (Zions Bancorporation, USD $) In Millions, unless otherwise specified |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 Minimum | Dec. 31, 2012 Maximum | Dec. 31, 2012 CRJ 200 item | Dec. 31, 2012 CRJ 700s item | Dec. 31, 2012 Brasilia turboprop aircraft item
Related Party Transactions |  |  |  |  |  |  |
Equity participation in leveraged leases on number of aircraft |  |  |  |  | 3 | 2 | 5
Number of refinanced aircraft |  |  |  |  | 6 | 2 |
Refinancing term |  |  | 3 years | 4 years |  |  |
Cash balance with related party | $ 56.4 | $ 51.8 |  |  |  |  |

X
- Definition Represents the cash balance held with the related party as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | skyw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the number of aircraft under leveraged leases in which the related party is an equity participant. + References No definition available. + Details
Name: | skyw_RelatedPartyTransactionEquityParticipationInLeveragedLeasesOnNumberOfAircraft
Namespace Prefix: | skyw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of refinanced aircraft of the entity. + References No definition available. + Details
Name: | skyw_RelatedPartyTransactionNumberOfRefinancedAircraft
Namespace Prefix: | skyw_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the refinancing term. + References No definition available. + Details
Name: | skyw_RelatedPartyTransactionRefinancingTerm
Namespace Prefix: | skyw_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration