10-K Filing

SKYWEST INC CIK: 793733 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0001558370-24-001237`
Period End Date	20231231
Filing Date	20240215
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	skyw-20231231x10k_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 85 Income Statement 73 Cash Flow Statement 122 Stockholders Equity 32

Balance Sheet 85 line items

Line Item	Tag	Value	Unit	Period
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Preferred stock, shares authorized	`PreferredStockSharesAuthorized`	5.00M	shares	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred stock, shares issued	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$102.98M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$148.28M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Marketable securities	`AvailableForSaleSecuritiesDebtSecuritiesCurrent`	$686.95M	USD	Point-in-time
Marketable securities	`AvailableForSaleSecuritiesDebtSecuritiesCurrent`	$944.23M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Receivables, net	`AccountsAndOtherReceivablesNetCurrent`	$100.52M	USD	Point-in-time
Receivables, net	`AccountsAndOtherReceivablesNetCurrent`	$82.85M	USD	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	82.59M	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	82.84M	shares	Point-in-time
Treasury stock, at cost, shares	`TreasuryStockCommonShares`	42.62M	shares	Point-in-time
Inventories, net	`AirlineRelatedInventoryNet`	$127.11M	USD	Point-in-time
Treasury stock, at cost, shares	`TreasuryStockCommonShares`	31.99M	shares	Point-in-time
Inventories, net	`AirlineRelatedInventoryNet`	$123.21M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$86.70M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$100.33M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.37B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.13B	USD	Point-in-time
Aircraft and rotable spares	`FlightEquipmentGross`	$8.32B	USD	Point-in-time
Aircraft and rotable spares	`FlightEquipmentGross`	$8.14B	USD	Point-in-time
Deposits on aircraft	`DepositsOnFlightEquipment`	$23.93M	USD	Point-in-time
Deposits on aircraft	`DepositsOnFlightEquipment`	$77.28M	USD	Point-in-time
Buildings and ground equipment	`BuildingsAndGroundEquipmentGross`	$282.40M	USD	Point-in-time
Buildings and ground equipment	`BuildingsAndGroundEquipmentGross`	$265.02M	USD	Point-in-time
Total property and equipment, gross	`PropertyPlantAndEquipmentGross`	$8.43B	USD	Point-in-time
Total property and equipment, gross	`PropertyPlantAndEquipmentGross`	$8.68B	USD	Point-in-time
Less-accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$2.88B	USD	Point-in-time
Less-accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$3.20B	USD	Point-in-time
Total property and equipment, net	`PropertyPlantAndEquipmentNet`	$5.55B	USD	Point-in-time
Total property and equipment, net	`PropertyPlantAndEquipmentNet`	$5.48B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$151.93M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$86.73M	USD	Point-in-time
Long-term receivables and other assets	`OtherAssetsNoncurrent`	$342.86M	USD	Point-in-time
Long-term receivables and other assets	`OtherAssetsNoncurrent`	$324.70M	USD	Point-in-time
Total other assets	`AssetsNoncurrentExcludingPropertyPlantAndEquipment`	$494.79M	USD	Point-in-time
Total other assets	`AssetsNoncurrentExcludingPropertyPlantAndEquipment`	$411.43M	USD	Point-in-time
Total assets	`Assets`	$7.03B	USD	Point-in-time
Total assets	`Assets`	$7.13B	USD	Point-in-time
Total assets	`Assets`	$7.41B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$443.87M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$438.50M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$470.25M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$422.00M	USD	Point-in-time
Accrued salaries, wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$186.28M	USD	Point-in-time
Accrued salaries, wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$194.88M	USD	Point-in-time
Current maturities of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$71.73M	USD	Point-in-time
Current maturities of operating lease liabilities	`OperatingLeaseLiabilityCurrent`	$19.34M	USD	Point-in-time
Taxes other than income taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$26.08M	USD	Point-in-time
Taxes other than income taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$20.48M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$33.55M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$99.88M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.17B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.25B	USD	Point-in-time
LONG-TERM DEBT, net of current maturities	`LongTermDebtNoncurrent`	$2.94B	USD	Point-in-time
LONG-TERM DEBT, net of current maturities	`LongTermDebtNoncurrent`	$2.56B	USD	Point-in-time
DEFERRED INCOME TAXES PAYABLE	`DeferredIncomeTaxLiabilitiesNet`	$687.06M	USD	Point-in-time
DEFERRED INCOME TAXES PAYABLE	`DeferredIncomeTaxLiabilitiesNet`	$687.60M	USD	Point-in-time
NONCURRENT OPERATING LEASE LIABILITIES	`OperatingLeaseLiabilityNoncurrent`	$88.62M	USD	Point-in-time
NONCURRENT OPERATING LEASE LIABILITIES	`OperatingLeaseLiabilityNoncurrent`	$67.39M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$176.93M	USD	Point-in-time
OTHER LONG-TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$341.32M	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 5)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES (Note 5)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, 5,000,000 shares authorized; none issued	`PreferredStockIncludingAdditionalPaidInCapital`	-	USD	Point-in-time
Preferred stock, 5,000,000 shares authorized; none issued	`PreferredStockIncludingAdditionalPaidInCapital`	-	USD	Point-in-time
Common stock, no par value, 120,000,000 shares authorized; 82,840,372 and 82,592,830 shares issued as of December 31, 2023, and December 31, 2022, respectively	`CommonStocksIncludingAdditionalPaidInCapital`	$734.43M	USD	Point-in-time
Common stock, no par value, 120,000,000 shares authorized; 82,840,372 and 82,592,830 shares issued as of December 31, 2023, and December 31, 2022, respectively	`CommonStocksIncludingAdditionalPaidInCapital`	$754.36M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.24B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$2.27B	USD	Point-in-time
Treasury stock, at cost, 42,615,347 and 31,994,416 shares as of December 31, 2023, and December 31, 2022, respectively	`TreasuryStockCommonValue`	$619.86M	USD	Point-in-time
Treasury stock, at cost, 42,615,347 and 31,994,416 shares as of December 31, 2023, and December 31, 2022, respectively	`TreasuryStockCommonValue`	$912.40M	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$325.00K	USD	Point-in-time
Accumulated other comprehensive income (loss)	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-3.80M	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$2.35B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$2.14B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$2.11B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$2.27B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$7.41B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$7.03B	USD	Point-in-time

Income Statement 73 line items

Line Item	Tag	Value	Unit	Period
Total operating revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.94B	USD	Annual
Total operating revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$2.71B	USD	Annual
Total operating revenues	`RevenueFromContractWithCustomerIncludingAssessedTax`	$3.00B	USD	Annual
Salaries, wages and benefits	`LaborAndRelatedExpense`	$1.21B	USD	Annual
Salaries, wages and benefits	`LaborAndRelatedExpense`	$1.32B	USD	Annual
Salaries, wages and benefits	`LaborAndRelatedExpense`	$986.66M	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$817.80M	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$644.16M	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$673.45M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$394.55M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$383.12M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$440.20M	USD	Annual
Aircraft fuel	`AircraftFuel`	$108.46M	USD	Annual
Aircraft fuel	`AircraftFuel`	$85.91M	USD	Annual
Aircraft fuel	`AircraftFuel`	$107.06M	USD	Annual
Airport-related expenses	`AirportRelatedExpenses`	$72.64M	USD	Annual
Airport-related expenses	`AirportRelatedExpenses`	$104.69M	USD	Annual
Airport-related expenses	`AirportRelatedExpenses`	$71.55M	USD	Annual
Aircraft rentals	`AircraftRentals`	$63.36M	USD	Annual
Aircraft rentals	`AircraftRentals`	$75.35M	USD	Annual
Aircraft rentals	`AircraftRentals`	$25.51M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$84.59M	USD	Annual
Payroll support grant	`GrantContraExpenses`	$-422.67M	USD	Annual
Other operating expenses	`OtherCostAndExpenseOperating`	$255.93M	USD	Annual
Other operating expenses	`OtherCostAndExpenseOperating`	$268.12M	USD	Annual
Other operating expenses	`OtherCostAndExpenseOperating`	$318.14M	USD	Annual
Total operating expenses	`OperatingExpenses`	$2.44B	USD	Annual
Total operating expenses	`OperatingExpenses`	$2.83B	USD	Annual
Total operating expenses	`OperatingExpenses`	$2.82B	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$275.87M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$181.16M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$104.07M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$1.11M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$17.61M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$43.93M	USD	Annual
Interest expense	`InterestExpense`	$123.12M	USD	Annual
Interest expense	`InterestExpense`	$127.08M	USD	Annual
Interest expense	`InterestExpense`	$130.93M	USD	Annual
Other income (loss), net	`OtherNonoperatingIncomeExpense`	$-3.25M	USD	Annual
Other income (loss), net	`OtherNonoperatingIncomeExpense`	$23.24M	USD	Annual
Other income (loss), net	`OtherNonoperatingIncomeExpense`	$20.90M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-125.26M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-88.58M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-63.76M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$92.58M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$40.31M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$150.61M	USD	Annual
PROVISION FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$5.97M	USD	Annual
PROVISION FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$38.70M	USD	Annual
PROVISION FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$19.63M	USD	Annual
NET INCOME	`NetIncomeLossAvailableToCommonStockholdersBasic`	$111.91M	USD	Annual
NET INCOME	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.34M	USD	Annual
NET INCOME	`NetIncomeLossAvailableToCommonStockholdersBasic`	$72.95M	USD	Annual
BASIC EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$1.44	USD	Annual
BASIC EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$2.22	USD	Annual
BASIC EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.78	USD	Annual
DILUTED EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$2.20	USD	Annual
DILUTED EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$1.44	USD	Annual
DILUTED EARNINGS PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.77	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	50.55M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	43.94M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	50.35M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	50.75M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	50.64M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	44.60M	shares	Annual
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$111.91M	USD	Annual
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.34M	USD	Annual
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$72.95M	USD	Annual
Net unrealized appreciation (depreciation) on marketable securities, net of taxes	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$-3.80M	USD	Annual
Net unrealized appreciation (depreciation) on marketable securities, net of taxes	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$4.13M	USD	Annual
TOTAL COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$69.15M	USD	Annual
TOTAL COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$111.91M	USD	Annual
TOTAL COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$38.47M	USD	Annual

Cash Flow Statement 122 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$72.95M	USD	Annual
Net income	`ProfitLoss`	$34.34M	USD	Annual
Net income	`ProfitLoss`	$111.91M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$394.55M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$383.12M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$440.20M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$17.12M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$9.16M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$8.69M	USD	Annual
Decrease in credit loss reserves	`ProvisionForLoanLossesExpensed`	$-4.59M	USD	Annual
Decrease in credit loss reserves	`ProvisionForLoanLossesExpensed`	$-185.00K	USD	Annual
Decrease in credit loss reserves	`ProvisionForLoanLossesExpensed`	$-4.25M	USD	Annual
Gain on disposal of fixed assets	`GainLossOnSaleOfPropertyPlantEquipment`	$4.59M	USD	Annual
Gain on disposal of fixed assets	`GainLossOnSaleOfPropertyPlantEquipment`	$14.29M	USD	Annual
Gain on disposal of fixed assets	`GainLossOnSaleOfPropertyPlantEquipment`	$7.95M	USD	Annual
Loss (gain) on investments in other companies	`GainLossOnSaleOfInvestments`	$-479.00K	USD	Annual
Loss (gain) on investments in other companies	`GainLossOnSaleOfInvestments`	$11.38M	USD	Annual
Net increase in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$539.00K	USD	Annual
Net increase in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$37.30M	USD	Annual
Net increase in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$23.82M	USD	Annual
Impairment on assets held for sale	`ImpairmentOfLongLivedAssetsToBeDisposedOf`	$51.38M	USD	Annual
Impairment on assets held for sale	`ImpairmentOfLongLivedAssetsToBeDisposedOf`	$2.32M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$84.59M	USD	Annual
Decrease (increase) in receivables	`IncreaseDecreaseInAccountsReceivable`	$32.96M	USD	Annual
Decrease (increase) in receivables	`IncreaseDecreaseInAccountsReceivable`	$30.09M	USD	Annual
Decrease (increase) in receivables	`IncreaseDecreaseInAccountsReceivable`	$-19.82M	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-997.00K	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$5.57M	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-7.82M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$12.90M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$3.90M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$16.63M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$1.94M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$2.87M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-1.59M	USD	Annual
Decrease in operating lease right-of-use assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-43.85M	USD	Annual
Decrease in operating lease right-of-use assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-25.95M	USD	Annual
Decrease in operating lease right-of-use assets	`IncreaseDecreaseInOperatingLeaseRightOfUseAsset`	$-86.59M	USD	Annual
Decrease in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiabilities`	$51.33M	USD	Annual
Decrease in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiabilities`	$76.81M	USD	Annual
Decrease in operating lease liabilities	`IncreaseDecreaseInOperatingLeaseLiabilities`	$54.98M	USD	Annual
Increase (decrease) in deferred revenue	`IncreaseDecreaseInContractWithCustomerLiability`	$-6.83M	USD	Annual
Increase (decrease) in deferred revenue	`IncreaseDecreaseInContractWithCustomerLiability`	$229.86M	USD	Annual
Increase (decrease) in deferred revenue	`IncreaseDecreaseInContractWithCustomerLiability`	$40.81M	USD	Annual
Decrease (increase) in unbilled revenue	`IncreaseDecreaseInUnbilledRevenue`	$11.49M	USD	Annual
Decrease (increase) in unbilled revenue	`IncreaseDecreaseInUnbilledRevenue`	$8.40M	USD	Annual
Decrease (increase) in unbilled revenue	`IncreaseDecreaseInUnbilledRevenue`	$-12.60M	USD	Annual
Increase (decrease) in accounts payable and other current liabilities	`IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities`	$80.96M	USD	Annual
Increase (decrease) in accounts payable and other current liabilities	`IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities`	$-42.03M	USD	Annual
Increase (decrease) in accounts payable and other current liabilities	`IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities`	$231.18M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$480.38M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$831.82M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$736.33M	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$1.34B	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$1.52B	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$1.83B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$1.60B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$1.53B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$1.49B	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$238.07M	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$537.57M	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$632.46M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$18.13M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$13.26M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$13.03M	USD	Annual
Proceeds from the sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$15.88M	USD	Annual
Proceeds from the sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$7.12M	USD	Annual
Proceeds from the sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$16.98M	USD	Annual
Deposits on aircraft	`PaymentsForDepositsOnAircraft`	$37.10M	USD	Annual
Deposits on aircraft	`PaymentsForDepositsOnAircraft`	$65.00M	USD	Annual
Deposits on aircraft	`PaymentsForDepositsOnAircraft`	$125.70M	USD	Annual
Aircraft deposits applied towards acquired aircraft	`ProceedsFromReturnOfDepositsOnAircraft`	$138.38M	USD	Annual
Aircraft deposits applied towards acquired aircraft	`ProceedsFromReturnOfDepositsOnAircraft`	$11.65M	USD	Annual
Aircraft deposits applied towards acquired aircraft	`ProceedsFromReturnOfDepositsOnAircraft`	$32.96M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$31.62M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$65.39M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$-4.16M	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-698.52M	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-904.89M	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-23.23M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$69.69M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$450.03M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$684.50M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$415.05M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$540.54M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$447.60M	USD	Annual
Payment of debt issuance cost	`PaymentsOfDebtIssuanceCosts`	$2.18M	USD	Annual
Payment of debt issuance cost	`PaymentsOfDebtIssuanceCosts`	$175.00K	USD	Annual
Payment of debt issuance cost	`PaymentsOfDebtIssuanceCosts`	$1.67M	USD	Annual
Net proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$3.15M	USD	Annual
Net proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$2.81M	USD	Annual
Net proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$2.96M	USD	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTaxes`	$585.00K	USD	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTaxes`	$1.15M	USD	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTaxes`	$1.58M	USD	Annual
Purchase of treasury stock and related excise tax	`PaymentsForRepurchaseOfCommonStockAndRelatedExciseTax`	$291.95M	USD	Annual
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$-90.60M	USD	Annual
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$-667.81M	USD	Annual
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$269.08M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$42.70M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-155.44M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$45.29M	USD	Annual
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$215.72M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$102.98M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$148.28M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$258.42M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$215.72M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$102.98M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$148.28M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$258.42M	USD	Point-in-time
Acquisition of property and equipment	`FairValueOfAssetsAcquired`	$16.83M	USD	Annual
Acquisition of property and equipment	`FairValueOfAssetsAcquired`	$11.34M	USD	Annual
Acquisition of property and equipment	`FairValueOfAssetsAcquired`	$12.58M	USD	Annual
Derecognition of right of use assets	`DerecognitionOfRightOfUseAssets`	$39.25M	USD	Annual
Derecognition of operating lease liabilities	`DerecognitionOfOperatingLeaseLiabilities`	$39.25M	USD	Annual
Warrants issued to U.S. Treasury	`WarrantsIssued`	$5.80M	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$128.29M	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$125.32M	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$124.92M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$13.61M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$1.17M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$6.59M	USD	Annual

Stockholders Equity 32 line items

Line Item	Tag	Value	Unit	Period
Net unrealized appreciation (depreciation) on marketable securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.22M	USD	Annual
Net unrealized appreciation (depreciation) on marketable securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$1.33M	USD	Annual
Balance	`StockholdersEquity`	$2.35B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.14B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.11B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.27B	USD	Point-in-time
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$111.91M	USD	Annual
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.34M	USD	Annual
Net income	`NetIncomeLossAvailableToCommonStockholdersBasic`	$72.95M	USD	Annual
Exercise of common stock options and vested employee stock awards	`StockIssuedDuringPeriodValueStockOptionsExercised`	$57.00K	USD	Annual
Exercise of common stock options and vested employee stock awards	`StockIssuedDuringPeriodValueStockOptionsExercised`	$606.00K	USD	Annual
Exercise of common stock options and vested employee stock awards	`StockIssuedDuringPeriodValueStockOptionsExercised`	$142.00K	USD	Annual
Exercise of common stock options and vested employee stock awards (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	41,020.00	shares	Annual
Exercise of common stock options and vested employee stock awards (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	3,848.00	shares	Annual
Exercise of common stock options and vested employee stock awards (in shares)	`StockIssuedDuringPeriodSharesStockOptionsExercised`	9,817.00	shares	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTax`	$1.58M	USD	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTax`	$585.00K	USD	Annual
Employee income tax paid on vested equity awards	`TreasurySharesWithheldForPaymentOfTax`	$1.15M	USD	Annual
Sale of common stock under employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$2.75M	USD	Annual
Sale of common stock under employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$2.81M	USD	Annual
Sale of common stock under employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$2.54M	USD	Annual
Stock based compensation expense	`StockIssuedDuringPeriodValueShareBasedCompensation`	$17.12M	USD	Annual
Stock based compensation expense	`StockIssuedDuringPeriodValueShareBasedCompensation`	$9.16M	USD	Annual
Stock based compensation expense	`StockIssuedDuringPeriodValueShareBasedCompensation`	$8.69M	USD	Annual
Treasury stock purchases and related excise tax	`TreasuryStockRetiredCostMethodAmount`	$291.95M	USD	Annual
Warrants issued to U.S. Treasury	`StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants`	$5.80M	USD	Annual
Net unrealized appreciation (depreciation) on marketable securities, net of tax	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$-3.80M	USD	Annual
Net unrealized appreciation (depreciation) on marketable securities, net of tax	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$4.13M	USD	Annual
Balance	`StockholdersEquity`	$2.35B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.14B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.11B	USD	Point-in-time
Balance	`StockholdersEquity`	$2.27B	USD	Point-in-time

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.