10-K Filing

SKYWEST INC CIK: 793733 FY 2017

Filing Information

Form Type	10-K
Accession Number	`0001558370-18-001097`
Period End Date	20171231
Filing Date	20180226
Fiscal Year	2017
Fiscal Period	FY
XBRL Instance	skyw-20171231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 90 Income Statement 144 Cash Flow Statement 109 Stockholders Equity 45

Balance Sheet 90 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
Common stock, par value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$181.79M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockNoParValue`	-	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$146.77M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$203.03M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$132.28M	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	120.00M	shares	Point-in-time
Marketable securities	`AvailableForSaleSecuritiesCurrent`	$409.90M	USD	Point-in-time
Marketable securities	`AvailableForSaleSecuritiesCurrent`	$503.50M	USD	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	80.40M	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	79.78M	shares	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$8.24M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$5.32M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$6.99M	USD	Point-in-time
Treasury stock, at cost, shares	`TreasuryStockCommonShares`	28.02M	shares	Point-in-time
Treasury stock, at cost, shares	`TreasuryStockCommonShares`	28.64M	shares	Point-in-time
Receivables, net	`ReceivablesNetCurrent`	$42.73M	USD	Point-in-time
Receivables, net	`ReceivablesNetCurrent`	$46.92M	USD	Point-in-time
Inventories, net	`AirlineRelatedInventoryNet`	$119.75M	USD	Point-in-time
Inventories, net	`AirlineRelatedInventoryNet`	$118.51M	USD	Point-in-time
Prepaid aircraft rents	`PrepaidRent`	$115.10M	USD	Point-in-time
Prepaid aircraft rents	`PrepaidRent`	$162.36M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$26.94M	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$18.11M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$995.13M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$917.79M	USD	Point-in-time
Aircraft and rotable spares	`FlightEquipmentGross`	$4.84B	USD	Point-in-time
Aircraft and rotable spares	`FlightEquipmentGross`	$5.34B	USD	Point-in-time
Deposits on aircraft	`DepositsOnFlightEquipment`	$38.80M	USD	Point-in-time
Deposits on aircraft	`DepositsOnFlightEquipment`	$49.00M	USD	Point-in-time
Buildings and ground equipment	`BuildingsAndGroundEquipmentGross`	$265.61M	USD	Point-in-time
Buildings and ground equipment	`BuildingsAndGroundEquipmentGross`	$261.70M	USD	Point-in-time
Total property and equipment, gross	`PropertyPlantAndEquipmentGross`	$5.14B	USD	Point-in-time
Total property and equipment, gross	`PropertyPlantAndEquipmentGross`	$5.65B	USD	Point-in-time
Less-accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.47B	USD	Point-in-time
Less-accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$1.32B	USD	Point-in-time
Total property and equipment, net	`PropertyPlantAndEquipmentNet`	$4.18B	USD	Point-in-time
Total property and equipment, net	`PropertyPlantAndEquipmentNet`	$3.82B	USD	Point-in-time
Long-term prepaid assets	`PrepaidExpenseNoncurrent`	$230.92M	USD	Point-in-time
Long-term prepaid assets	`PrepaidExpenseNoncurrent`	$218.50M	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$49.97M	USD	Point-in-time
Other long-term assets	`OtherAssetsNoncurrent`	$49.22M	USD	Point-in-time
Total other assets	`AssetsNoncurrentExcludingPropertyPlantAndEquipment`	$280.14M	USD	Point-in-time
Total other assets	`AssetsNoncurrentExcludingPropertyPlantAndEquipment`	$268.48M	USD	Point-in-time
Total assets	`Assets`	$5.01B	USD	Point-in-time
Total assets	`Assets`	$5.46B	USD	Point-in-time
Total assets	`Assets`	$4.78B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$309.68M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$305.46M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$288.90M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$241.22M	USD	Point-in-time
Accrued salaries, wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$154.37M	USD	Point-in-time
Accrued salaries, wages and benefits	`EmployeeRelatedLiabilitiesCurrent`	$139.88M	USD	Point-in-time
Taxes other than income taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$19.23M	USD	Point-in-time
Taxes other than income taxes	`AccrualForTaxesOtherThanIncomeTaxesCurrent`	$15.62M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$45.09M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$48.65M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$747.26M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$820.83M	USD	Point-in-time
OTHER LONG TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$42.54M	USD	Point-in-time
OTHER LONG TERM LIABILITIES	`OtherLiabilitiesNoncurrent`	$50.84M	USD	Point-in-time
LONG TERM DEBT, net of current maturities	`LongTermDebtNoncurrent`	$2.24B	USD	Point-in-time
LONG TERM DEBT, net of current maturities	`LongTermDebtNoncurrent`	$2.38B	USD	Point-in-time
DEFERRED INCOME TAXES PAYABLE	`DeferredTaxLiabilitiesNoncurrent`	$419.02M	USD	Point-in-time
DEFERRED INCOME TAXES PAYABLE	`DeferredTaxLiabilitiesNoncurrent`	$565.40M	USD	Point-in-time
DEFERRED AIRCRAFT CREDITS	`DeferredAircraftCredits`	$44.23M	USD	Point-in-time
DEFERRED AIRCRAFT CREDITS	`DeferredAircraftCredits`	$53.46M	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; 80,398,104 and 79,781,305 shares issued, respectively	`CommonStocksIncludingAdditionalPaidInCapital`	$672.59M	USD	Point-in-time
Common stock, no par value, 120,000,000 shares authorized; 80,398,104 and 79,781,305 shares issued, respectively	`CommonStocksIncludingAdditionalPaidInCapital`	$657.35M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.52B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.10B	USD	Point-in-time
Treasury stock, at cost, 28,643,535 and 28,015,386 shares, respectively	`TreasuryStockCommonValue`	$435.18M	USD	Point-in-time
Treasury stock, at cost, 28,643,535 and 28,015,386 shares, respectively	`TreasuryStockCommonValue`	$410.09M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-71.00K	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-50.00K	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$1.40B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$1.75B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$1.51B	USD	Point-in-time
Total stockholders' equity	`StockholdersEquity`	$1.35B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$5.01B	USD	Point-in-time
Total liabilities and stockholders' equity	`LiabilitiesAndStockholdersEquity`	$5.46B	USD	Point-in-time

Income Statement 144 line items

Line Item	Tag	Value	Unit	Period
Passenger	`PassengerRevenue`	$3.05B	USD	Annual
Passenger	`PassengerRevenue`	$3.13B	USD	Annual
Passenger	`PassengerRevenue`	$3.03B	USD	Annual
Ground handling and other	`OtherSalesRevenueNet`	$65.54M	USD	Annual
Ground handling and other	`OtherSalesRevenueNet`	$69.79M	USD	Annual
Ground handling and other	`OtherSalesRevenueNet`	$77.56M	USD	Annual
Total operating revenues	`SalesRevenueNet`	$3.10B	USD	Annual
Total operating revenues	`SalesRevenueNet`	$797.16M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$3.12B	USD	Annual
Total operating revenues	`SalesRevenueNet`	$762.08M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$758.02M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$809.76M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$3.20B	USD	Annual
Total operating revenues	`SalesRevenueNet`	$765.41M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$831.94M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$799.78M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$801.34M	USD	1 Quarter
Salaries, wages and benefits	`LaborAndRelatedExpense`	$1.20B	USD	Annual
Salaries, wages and benefits	`LaborAndRelatedExpense`	$1.21B	USD	Annual
Salaries, wages and benefits	`LaborAndRelatedExpense`	$1.20B	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$604.86M	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$579.46M	USD	Annual
Aircraft maintenance, materials and repairs	`AircraftMaintenanceMaterialsAndRepairs`	$569.31M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$284.97M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$292.77M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$264.51M	USD	Annual
Aircraft rentals	`AircraftRental`	$262.60M	USD	Annual
Aircraft rentals	`AircraftRental`	$215.81M	USD	Annual
Aircraft rentals	`AircraftRental`	$273.70M	USD	Annual
Aircraft fuel	`FuelCosts`	$162.65M	USD	Annual
Aircraft fuel	`FuelCosts`	$118.12M	USD	Annual
Aircraft fuel	`FuelCosts`	$122.28M	USD	Annual
Ground handling services	`GroundHandlingServiceExpenses`	$82.69M	USD	Annual
Ground handling services	`GroundHandlingServiceExpenses`	$69.85M	USD	Annual
Ground handling services	`GroundHandlingServiceExpenses`	$72.66M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$465.65M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$465.60M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$299.30M	USD	Annual
Other operating expenses	`OtherCostAndExpenseOperating`	$305.04M	USD	Annual
Other operating expenses	`OtherCostAndExpenseOperating`	$313.85M	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.82B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$2.86B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$3.29B	USD	Annual
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$106.60M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$61.81M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$112.37M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$234.51M	USD	Annual
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$76.30M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$92.94M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$388.20M	USD	Annual
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$-172.68M	USD	Annual
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$-404.46M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$84.14M	USD	1 Quarter
OPERATING INCOME (LOSS)	`OperatingIncomeLoss`	$85.83M	USD	1 Quarter
Interest income	`InvestmentIncomeInterest`	$2.14M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$4.51M	USD	Annual
Interest income	`InvestmentIncomeInterest`	$2.00M	USD	Annual
Interest expense	`InterestExpense`	$78.18M	USD	Annual
Interest expense	`InterestExpense`	$104.92M	USD	Annual
Interest expense	`InterestExpense`	$75.85M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$400.00K	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$33.66M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$-94.00K	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-40.19M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-100.02M	USD	Annual
Total other expense, net	`NonoperatingIncomeExpense`	$-76.13M	USD	Annual
INCOME (LOSS) BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$288.18M	USD	Annual
INCOME (LOSS) BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$194.32M	USD	Annual
INCOME (LOSS) BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$-248.81M	USD	Annual
PROVISION (BENEFIT) FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$76.50M	USD	Annual
PROVISION (BENEFIT) FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$-87.23M	USD	Annual
PROVISION (BENEFIT) FOR INCOME TAXES	`IncomeTaxExpenseBenefit`	$-140.72M	USD	Annual
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.79M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$117.82M	USD	Annual
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$289.93M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$41.32M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-270.24M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$428.91M	USD	Annual
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$27.09M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$53.72M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$50.48M	USD	1 Quarter
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-161.59M	USD	Annual
NET INCOME (LOSS)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$40.24M	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.78	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$2.31	USD	Annual
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.98	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$5.60	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$8.28	USD	Annual
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.67	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$-3.14	USD	Annual
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.80	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$0.53	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$1.04	USD	1 Quarter
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareBasic`	$-5.22	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$1.01	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.52	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$8.08	USD	Annual
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$-3.14	USD	Annual
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$2.27	USD	Annual
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.65	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$-5.22	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.79	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.77	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$5.46	USD	1 Quarter
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	`EarningsPerShareDiluted`	$0.95	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.82M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.51M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.80M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.83M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.08M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.75M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.81M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.22M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.42M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.76M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	51.63M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.01M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	51.83M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.14M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.20M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.10M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.47M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.98M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	53.08M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	51.76M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	51.51M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	52.19M	shares	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.79M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$117.82M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$289.93M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$41.32M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-270.24M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$428.91M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$27.09M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$53.72M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$50.48M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-161.59M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$40.24M	USD	1 Quarter
Net unrealized appreciation on marketable securities, net of taxes	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$189.00K	USD	Annual
Net unrealized appreciation on marketable securities, net of taxes	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$21.00K	USD	Annual
Net unrealized appreciation on marketable securities, net of taxes	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$29.00K	USD	Annual
TOTAL COMPREHENSIVE INCOME (LOSS)	`ComprehensiveIncomeNetOfTax`	$428.93M	USD	Annual
TOTAL COMPREHENSIVE INCOME (LOSS)	`ComprehensiveIncomeNetOfTax`	$117.85M	USD	Annual
TOTAL COMPREHENSIVE INCOME (LOSS)	`ComprehensiveIncomeNetOfTax`	$-161.40M	USD	Annual

Cash Flow Statement 109 line items

Line Item	Tag	Value	Unit	Period
Net income (loss)	`ProfitLoss`	$117.82M	USD	Annual
Net income (loss)	`ProfitLoss`	$428.91M	USD	Annual
Net income (loss)	`ProfitLoss`	$-161.59M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$284.97M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$292.77M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$264.51M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$10.58M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$7.57M	USD	Annual
Stock based compensation expense	`ShareBasedCompensation`	$5.37M	USD	Annual
Gain from early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$1.28M	USD	Annual
Gain from early extinguishment of debt	`GainsLossesOnExtinguishmentOfDebt`	$33.66M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$465.65M	USD	Annual
Special items	`SpecialChargesAndWriteDownValueOfAssets`	$465.60M	USD	1 Quarter
Net increase (decrease) in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-145.52M	USD	Annual
Net increase (decrease) in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-83.44M	USD	Annual
Net increase (decrease) in deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$73.84M	USD	Annual
Decrease (increase) in restricted cash	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$27.00K	USD	Annual
Decrease (increase) in restricted cash	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$-8.24M	USD	Annual
Decrease (increase) in restricted cash	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$-3.37M	USD	Annual
Decrease in receivables	`IncreaseDecreaseInAccountsReceivable`	$-21.08M	USD	Annual
Decrease in receivables	`IncreaseDecreaseInAccountsReceivable`	$-4.20M	USD	Annual
Decrease in receivables	`IncreaseDecreaseInAccountsReceivable`	$-15.26M	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-1.67M	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$92.00K	USD	Annual
Decrease (increase) in income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$4.12M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$2.86M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$1.25M	USD	Annual
Increase in inventories	`IncreaseDecreaseInInventories`	$1.99M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-26.02M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$28.60M	USD	Annual
Decrease (increase) in other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-37.57M	USD	Annual
Decrease in deferred aircraft credits	`IncreaseDecreaseInDeferredAircraftCredits`	$-8.63M	USD	Annual
Decrease in deferred aircraft credits	`IncreaseDecreaseInDeferredAircraftCredits`	$-8.52M	USD	Annual
Decrease in deferred aircraft credits	`IncreaseDecreaseInDeferredAircraftCredits`	$-8.11M	USD	Annual
Increase (decrease) in accounts payable and accrued aircraft rents	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-47.56M	USD	Annual
Increase (decrease) in accounts payable and accrued aircraft rents	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$9.69M	USD	Annual
Increase (decrease) in accounts payable and accrued aircraft rents	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$46.93M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$3.76M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-4.50M	USD	Annual
Increase (decrease) in other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$20.08M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$506.67M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$684.12M	USD	Annual
NET CASH PROVIDED BY OPERATING ACTIVITIES	`NetCashProvidedByUsedInOperatingActivities`	$417.32M	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecurities`	$1.53B	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecurities`	$1.17B	USD	Annual
Purchases of marketable securities	`PaymentsToAcquireAvailableForSaleSecurities`	$2.51B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$1.30B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$1.44B	USD	Annual
Sales of marketable securities	`ProceedsFromSaleOfAvailableForSaleSecurities`	$2.39B	USD	Annual
Proceeds from the sale of aircraft, property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$10.31M	USD	Annual
Proceeds from the sale of aircraft, property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$51.99M	USD	Annual
Proceeds from the sale of aircraft, property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$3.01M	USD	Annual
Proceeds from settlement of residual value guarantee aircraft agreements	`ProceedsFromReturnOfDepositsOnAircraft`	$90.00M	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$1.14B	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$661.18M	USD	Annual
Aircraft and rotable spare parts	`PaymentsForFlightEquipment`	$710.87M	USD	Annual
Deposits on aircraft	`PaymentsForDepositsOnAircraft`	$650.00K	USD	Annual
Deposits on aircraft	`PaymentsForDepositsOnAircraft`	$46.73M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquireBuildingsAndGroundEquipment`	$14.35M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquireBuildingsAndGroundEquipment`	$27.47M	USD	Annual
Buildings and ground equipment	`PaymentsToAcquireBuildingsAndGroundEquipment`	$10.40M	USD	Annual
Return of deposits applied towards acquired aircraft	`ReturnOfDepositsOnAircraft`	$36.53M	USD	Annual
Return of deposits applied towards acquired aircraft	`ReturnOfDepositsOnAircraft`	$1.85M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$10.90M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$-10.77M	USD	Annual
Decrease (increase) in other assets	`PaymentsForProceedsFromOtherInvestingActivities`	$-7.10M	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-569.72M	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-1.18B	USD	Annual
NET CASH USED IN INVESTING ACTIVITIES	`NetCashProvidedByUsedInInvestingActivities`	$-751.34M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$591.88M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$926.07M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$471.68M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$354.28M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$330.26M	USD	Annual
Principal payments on long-term debt	`RepaymentsOfLongTermDebt`	$302.16M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$9.75M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$8.14M	USD	Annual
Proceeds from issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$4.66M	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$18.73M	USD	Annual
Purchase of treasury stock	`PaymentsForRepurchaseOfCommonStock`	$20.01M	USD	Annual
Employee income tax paid on equity awards	`TreasurySharesWithheldForPaymentOfTaxes`	$5.08M	USD	Annual
Decrease (increase) in debt issuance cost	`IncreaseDecreaseDebtIssuanceCosts`	$8.65M	USD	Annual
Decrease (increase) in debt issuance cost	`IncreaseDecreaseDebtIssuanceCosts`	$-2.78M	USD	Annual
Decrease (increase) in debt issuance cost	`IncreaseDecreaseDebtIssuanceCosts`	$3.74M	USD	Annual
Payment of cash dividends	`PaymentsOfDividendsCommonStock`	$8.26M	USD	Annual
Payment of cash dividends	`PaymentsOfDividendsCommonStock`	$9.26M	USD	Annual
Payment of cash dividends	`PaymentsOfDividendsCommonStock`	$15.02M	USD	Annual
NET CASH PROVIDED BY FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$102.24M	USD	Annual
NET CASH PROVIDED BY FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$223.15M	USD	Annual
NET CASH PROVIDED BY FINANCING ACTIVITIES	`NetCashProvidedByUsedInFinancingActivities`	$614.14M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$70.76M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$35.03M	USD	Annual
Increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-56.27M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$181.79M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$146.77M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$203.03M	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$132.28M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$181.79M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$146.77M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$203.03M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$132.28M	USD	Point-in-time
Acquisition of rotable spare parts	`NoncashAcquisitionOfRotableSpareParts`	$5.69M	USD	Annual
Acquisition of rotable spare parts	`NoncashAcquisitionOfRotableSpareParts`	$755.00K	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$80.66M	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$105.64M	USD	Annual
Interest, net of capitalized amounts	`InterestPaidNet`	$76.59M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$5.01M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$1.21M	USD	Annual
Income taxes	`IncomeTaxesPaidNet`	$5.10M	USD	Annual

Stockholders Equity 45 line items

Line Item	Tag	Value	Unit	Period
Net unrealized depreciation on marketable securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$18.00K	USD	Annual
Net unrealized depreciation on marketable securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$7.00K	USD	Annual
Net unrealized depreciation on marketable securities, tax	`OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax`	$98.00K	USD	Annual
Cash dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.19	USD	Annual
Cash dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.32	USD	Annual
Cash dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.16	USD	Annual
Balance	`StockholdersEquity`	$1.40B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.75B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.51B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.35B	USD	Point-in-time
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$34.79M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$117.82M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$289.93M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$41.32M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-270.24M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$428.91M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$27.09M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$53.72M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$50.48M	USD	1 Quarter
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$-161.59M	USD	Annual
Net income (loss)	`NetIncomeLossAvailableToCommonStockholdersBasic`	$40.24M	USD	1 Quarter
Net unrealized appreciation on marketable securities net of tax	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$189.00K	USD	Annual
Net unrealized appreciation on marketable securities net of tax	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$21.00K	USD	Annual
Net unrealized appreciation on marketable securities net of tax	`OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent`	$29.00K	USD	Annual
Exercise of common stock options and vested restricted stock units	`StockIssuedDuringPeriodValueShareBasedCompensation`	$4.98M	USD	Annual
Exercise of common stock options and vested restricted stock units	`StockIssuedDuringPeriodValueShareBasedCompensation`	$8.49M	USD	Annual
Exercise of common stock options and vested restricted stock units	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.66M	USD	Annual
Treasury shares withheld for the payment of taxes	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$-5.08M	USD	Annual
Sale of common stock under employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$3.16M	USD	Annual
Sale of common stock under employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$3.43M	USD	Annual
Stock based compensation expense related to the issuance of stock options and restricted stock units	`ShareBasedCompensationRequisiteServicePeriodRecognitionValue`	$3.00M	USD	Annual
Stock based compensation expense related to the issuance of stock options and restricted stock units	`ShareBasedCompensationRequisiteServicePeriodRecognitionValue`	$5.37M	USD	Annual
Stock based compensation expense related to the issuance of stock options and restricted stock units	`ShareBasedCompensationRequisiteServicePeriodRecognitionValue`	$7.57M	USD	Annual
Impact of adoption of Accounting Standards Update (ASU) 2016-09 (See Note 1)	`CumulativeEffectOfProspectiveApplicationOfNewAccountingPrincipleNetOfTax1`	$867.00K	USD	Annual
Tax deficiency from exercise of common stock options	`TaxEffectFromShareBasedCompensation`	$-2.17M	USD	Annual
Tax deficiency from exercise of common stock options	`TaxEffectFromShareBasedCompensation`	$10.58M	USD	Annual
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$18.73M	USD	Annual
Treasury stock purchases	`TreasuryStockValueAcquiredCostMethod`	$20.01M	USD	Annual
Cash dividends declared (per share)	`DividendsCommonStockCash`	$9.80M	USD	Annual
Cash dividends declared (per share)	`DividendsCommonStockCash`	$8.15M	USD	Annual
Cash dividends declared (per share)	`DividendsCommonStockCash`	$16.57M	USD	Annual
Balance	`StockholdersEquity`	$1.40B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.75B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.51B	USD	Point-in-time
Balance	`StockholdersEquity`	$1.35B	USD	Point-in-time

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