Name:	skyw_DefinedBenefitPlanPercentageOfEmployerMatchingContributionForParticipantContributionsBasedUponLengthOfService
Namespace Prefix:	skyw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the age required to be completed by the employee to be eligible to participate in the plan.

No definition available.

Name:	skyw_DefinedBenefitPlanRequiredAge
Namespace Prefix:	skyw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the maximum benefit plan percentage of participants compensation eligible for employer matching contribution based on position and years of service.

No definition available.

Name:	skyw_MaximumBenefitPlanPercentageOfParticipantsCompensationEligibleForEmployerMatchingContributionBasedOnPositionAndYearsOfService
Namespace Prefix:	skyw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the minimum benefit plan percentage of participants compensation eligible for employer matching contribution based on position and years of service.

No definition available.

Name:	skyw_MinimumBenefitPlanPercentageOfParticipantsCompensationEligibleForEmployerMatchingContributionBasedOnPositionAndYearsOfService
Namespace Prefix:	skyw_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.