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Long-term Debt (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Long-term Debt |  |
Long-term debt | $ 1,745,811,000 us-gaap_LongTermDebt | $ 1,470,568,000 us-gaap_LongTermDebt
Less current maturities | (211,821,000)us-gaap_LongTermDebtCurrent | (177,389,000)us-gaap_LongTermDebtCurrent
Long-term debt, net of current maturities | 1,533,990,000 us-gaap_LongTermDebtNoncurrent | 1,293,179,000 us-gaap_LongTermDebtNoncurrent
Aggregate amounts of principal maturities of long-term debt |  |
2015 | 211,821,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths |
2016 | 216,340,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo |
2017 | 190,648,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree |
2018 | 168,769,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour |
2019 | 161,329,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive |
Thereafter | 796,904,000 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive |
Total | 1,745,811,000 us-gaap_LongTermDebt | 1,470,568,000 us-gaap_LongTermDebt
Letters of credit and surety bonds outstanding with various banks and surety institutions | 79,900,000 skyw_LettersOfCreditAndSuretyBondOutstandingAmount | 88,500,000 skyw_LettersOfCreditAndSuretyBondOutstandingAmount
CRJ |  |
Long-term Debt |  |
Long-term debt | 1,700,000,000 us-gaap_LongTermDebt / us-gaap_AircraftTypeAxis = skyw_CRJMember |
Effective interest rate (as a percent) | 4.10%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_AircraftTypeAxis = skyw_CRJMember |
Aggregate amounts of principal maturities of long-term debt |  |
Total | 1,700,000,000 us-gaap_LongTermDebt / us-gaap_AircraftTypeAxis = skyw_CRJMember |
E175 |  |
Long-term Debt |  |
Number of new aircraft acquired | 20 skyw_NumberOfNewAircraftAcquriedByIssuanceOfDebt / us-gaap_AircraftTypeAxis = skyw_E175Member |
CRJ 700 |  |
Long-term Debt |  |
Number of used aircraft acquired | 1 skyw_NumberOfUsedAircraftAcquiredByIssuanceOfDebt / us-gaap_AircraftTypeAxis = skyw_CRJ700Member |
Notes payable to banks, due in semi annual installments, variable interest based on LIBOR, or with interest rates ranging from 1.34% to 2.55% through 2015 to 2020, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 1.34%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member |
Interest rate, maximum (as a percent) | 2.55%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member |
Long-term debt | 28,554,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member | 31,933,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 28,554,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member | 31,933,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom1.34PercentTo2.55PercentDueThrough2014To2020Member
Notes payable to a financing company, due in semi annual installments, variable interest based on LIBOR, or with interest rates ranging from 0.70% to 2.36% through 2015 to 2021, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 0.70%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member |
Interest rate, maximum (as a percent) | 2.36%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member |
Long-term debt | 13,551,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member | 15,740,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 13,551,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member | 15,740,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom0.70PercentTo2.36PercentDueThrough2014To2021Member
Notes payable to banks, due in semi annual installments plus interest at 6.06% to 7.18% through 2021, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 6.06%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member |
Interest rate, maximum (as a percent) | 7.18%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member |
Long-term debt | 572,446,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member | 623,315,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 572,446,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member | 623,315,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom6.06PercentTo7.18PercentDueThrough2021Member
Notes payable to a financing company, due in semi annual installments plus interest at 5.78% to 6.23% through 2019, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 5.78%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member |
Interest rate, maximum (as a percent) | 6.23%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member |
Long-term debt | 25,090,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member | 32,528,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 25,090,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member | 32,528,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToFinancingCompanyInterestRatesRangingFrom5.78PercentTo6.23PercentDueThrough2019Member
Notes payable to banks, due in monthly installments plus interest of 3.15% to 8.18% through 2025, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 3.15%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member |
Interest rate, maximum (as a percent) | 8.18%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member |
Long-term debt | 129,201,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member | 149,477,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 129,201,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member | 149,477,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.15PercentTo8.18PercentDueThrough2025Member
Notes payable to banks, due in semi annual installments, plus interest at 6.05% through 2020, secured by aircraft |  |
Long-term Debt |  |
Interest rate (as a percent) | 6.05%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt6.05PercentDueThrough2020Member |
Long-term debt | 350,177,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt6.05PercentDueThrough2020Member | 392,660,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt6.05PercentDueThrough2020Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 350,177,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt6.05PercentDueThrough2020Member | 392,660,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt6.05PercentDueThrough2020Member
Notes payable to banks, due in monthly installments, plus interest at 3.10% through 2019, secured by aircraft |  |
Long-term Debt |  |
Interest rate (as a percent) | 3.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt3.10PercentDueThrough2019Member |
Long-term debt | 5,909,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt3.10PercentDueThrough2019Member |
Aggregate amounts of principal maturities of long-term debt |  |
Total | 5,909,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesAt3.10PercentDueThrough2019Member |
Notes payable to banks, due in quarterly installments, LIBOR plus interest at 2.39% through 2029, secured by aircraft |  |
Long-term Debt |  |
Interest rate (as a percent) | 2.39%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRateAt2.39PercentDueThrough2029Member |
Long-term debt | 378,406,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRateAt2.39PercentDueThrough2029Member |
Aggregate amounts of principal maturities of long-term debt |  |
Total | 378,406,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRateAt2.39PercentDueThrough2029Member |
Notes payable to banks, due in quarterly installments, plus interest at 3.8% to 4.0% through 2029, secured by aircraft |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 3.80%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.8PercentTo4.0PercentDueThrough2029Member |
Interest rate, maximum (as a percent) | 4.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.8PercentTo4.0PercentDueThrough2029Member |
Long-term debt | 68,318,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.8PercentTo4.0PercentDueThrough2029Member |
Aggregate amounts of principal maturities of long-term debt |  |
Total | 68,318,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom3.8PercentTo4.0PercentDueThrough2029Member |
Notes payable to a bank, due in monthly installments interest based on LIBOR plus interest at 2.00% to 4.00% through 2016 |  |
Long-term Debt |  |
Interest rate, minimum (as a percent) | 2.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member |
Interest rate, maximum (as a percent) | 4.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member |
Long-term debt | 174,159,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member | 224,915,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member
Aggregate amounts of principal maturities of long-term debt |  |
Total | 174,159,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member | 224,915,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = skyw_NotesPayableToBanksInterestRatesRangingFrom2.00PercentTo4.00PercentDueThrough2016Member
Line of Credit | SkyWest Airlines |  |
Long-term Debt |  |
Interest rate (as a percent) | 3.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = skyw_SkyWestAirlinesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Aggregate amounts of principal maturities of long-term debt |  |
Maximum borrowing capacity | 25,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = skyw_SkyWestAirlinesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | 25,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = skyw_SkyWestAirlinesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Amount outstanding | $ 0 us-gaap_LineOfCreditFacilityAmountOutstanding / dei_LegalEntityAxis = skyw_SkyWestAirlinesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | $ 0 us-gaap_LineOfCreditFacilityAmountOutstanding / dei_LegalEntityAxis = skyw_SkyWestAirlinesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember

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