Debt Instrument, Face Amount, Commitment

No definition available.

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- Definition

Face/par value in contract for future debt financing commitments

+ References

No definition available.

+ Details

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- Definition

Future Aircraft To Be Received

+ References

No definition available.

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- Definition

Number Of Amendments To Participation Agreements Entered Into During the Period

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No definition available.

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- Definition

Number of Aircraft with Secured Debt Financing Commitments Scheduled for Delivery

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- Definition

Number of Delivered Aircraft with Secured Debt Financing Commitments

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- Definition

Number of Trusts

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No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt and Other Obligations - Long-term Debt (Details) $ in Thousands	1 Months Ended		12 Months Ended
	May 31, 2018 USD ($) aircraft agreement	Nov. 30, 2017 USD ($) aircraft trust	Dec. 31, 2018 USD ($) aircraft	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 2,234,500	$ 1,539,600
Repayments of Long-term Debt			137,300	102,300
Long-term Debt, Current Maturities			$ 162,800	115,430	$ 84,354
Future Aircraft To Be Received \| aircraft			50
Less unamortized discount, net			$ 47,700	36,700
Total			$ 2,024,000	1,387,498	$ 897,359
Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of trusts \| trust		3
Face amount, commitment for future issuance		$ 420,500
Enhanced Equipment Trust Certificate \| 2017-1 EETC Class AA
Debt Instrument [Line Items]
State interest rate percentage			3.375%
Enhanced Equipment Trust Certificate \| 2017-1 EETC Class A
Debt Instrument [Line Items]
State interest rate percentage			3.65%
Enhanced Equipment Trust Certificate \| 2017-1 EETC Class B
Debt Instrument [Line Items]
State interest rate percentage			3.80%
2015-1 EETC Class B
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 80,000	$ 92,000
Weighted-average interest rates			4.45%	4.45%
2015-1 EETC Class A
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 378,600	$ 408,600
Weighted-average interest rates			4.10%	4.10%
Junior loans
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 31,100	$ 39,300
Weighted-average interest rates			6.90%	6.90%
Senior loans
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 382,400	$ 417,900
Weighted-average interest rates			4.10%	4.10%
2017-1 EETC Class B
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 83,700	$ 13,800
Weighted-average interest rates			3.80%	3.80%
2017-1 EETC Class A
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 80,800	$ 12,500
Weighted-average interest rates			3.65%	3.65%
2017-1 EETC Class AA
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 242,500	$ 37,500
Weighted-average interest rates			3.38%	3.38%
Fixed-rate term loans
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 625,100	$ 518,000
Debt instrument, face amount			$ 139,500
Weighted-average interest rates			3.88%	3.83%
Equipment Notes, Series C 2017-1
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 85,500	$ 0
Number Of Amendments To Participation Agreements Entered Into During the Period \| agreement	9
Weighted-average interest rates			5.11%
Equipment Notes, Series C 2017-1 \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
State interest rate percentage			5.11%
Debt instrument, face amount	$ 65,700		$ 19,800
Debt Instrument, Face Amount, Commitment	$ 85,500
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term Debt, Gross				0
Long-term line of credit			$ 135,300
Weighted-average interest rates			3.72%
Equipment Notes, Series C 2015-1
Debt Instrument [Line Items]
Long-term Debt, Gross			$ 109,500	0
Number Of Amendments To Participation Agreements Entered Into During the Period \| agreement	15
Weighted-average interest rates			4.93%
Equipment Notes, Series C 2015-1 \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
State interest rate percentage			4.93%
Debt instrument, face amount	$ 115,200
Minimum \| Fixed-rate term loans
Debt Instrument [Line Items]
Long-term Debt, Term			10 years
Minimum \| Fixed-rate term loans \| Fixed-rate term loans
Debt Instrument [Line Items]
State interest rate percentage			4.06%
Maximum \| Fixed-rate term loans
Debt Instrument [Line Items]
Long-term Debt, Term			12 years
Maximum \| Fixed-rate term loans \| Fixed-rate term loans
Debt Instrument [Line Items]
State interest rate percentage			4.10%
A321 \| Equipment Notes, 2017-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft			5
A320 \| Equipment Notes, 2017-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft			7
Airbus
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft			60
Airbus \| A321 \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of aircraft with secured debt financing commitments scheduled for delivery \| aircraft		5
Airbus \| A320
Debt Instrument [Line Items]
Future Aircraft To Be Received \| aircraft			2
Airbus \| A320 \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of aircraft with secured debt financing commitments scheduled for delivery \| aircraft		7
Airbus \| A320 \| Fixed-rate term loans
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft			4
Airbus \| A320NEO
Debt Instrument [Line Items]
Future Aircraft To Be Received \| aircraft			43
October 2015 to January 2017 \| A321 \| Equipment notes, 2015-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft	12
February 2018 To March 2018 \| A321 \| Equipment Notes, 2017-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft	5
February 2018 To March 2018 \| Airbus \| A321
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft		5
December 2017 to April 2018 \| A320 \| Equipment Notes, 2017-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft	4
October 2018 to August 2018 \| A320 \| Equipment Notes, 2017-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft			3
March 2016 to June 2016 \| A320 \| Equipment notes, 2015-1 [Member] \| Enhanced Equipment Trust Certificate
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft	3
December 2017 To January 2018 \| Airbus \| A320
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft		3
April 2018 To October 2018 \| Airbus \| A320
Debt Instrument [Line Items]
Number of delivered aircraft with secured debt financing commitments \| aircraft		4
Lines of Credit with Counterparties for Jet Fuel and Derivatives [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 41,500	$ 51,500
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 160,000