Represents the cumulative amount of withheld receivables recognized as revenue by the entity.

No definition available.

Name:	skyw_LossContingenciesCumulativeWithheldReimbursedExpensesRecognizedAsRevenue
Namespace Prefix:	skyw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount of receivables withheld by the other entity in pursuant with discrepancy in providing services under the agreements.

+ References

No definition available.

+ Details

Name:	skyw_LossContingenciesReimbursedExpensesWithheld
Namespace Prefix:	skyw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount that the settlement offered by the reporting entity was less than the cumulative amount of withheld receivables recognized as revenue by the reporting entity.

+ References

No definition available.

+ Details

Name:	skyw_LossContingencySettlementAmountOfferedLessThanCumulativeWithheldReimbursedExpensesRecognizedAsRevenue
Namespace Prefix:	skyw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

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

Legal Matters (Details) (SkyWest Airlines and ExpressJet v. Delta, USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2007	Dec. 31, 2010	Jun. 30, 2014
SkyWest Airlines and ExpressJet v. Delta
Legal Matters
Amount of receivables withheld from weekly scheduled wire payments to SkyWest Airlines and Atlantic Southeast	$ 25
Withheld receivables recognized as revenue by the entity			31.7
Amount that the settlement offered by the reporting entity was less than the cumulative amount of withheld receivables recognized as revenue by the reporting entity		5.9
Receivables written off by the entity		$ 5.9