Number of Aircrafts Delivered

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- Definition

Number of Previously Leased Aircraft Purchased

+ References

No definition available.

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- Definition

Utilization of Pre-Delivery Deposits for Aircraft Purchases

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No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Section S99
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-Subparagraph (SX 210.5-02(22))
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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Event (Details) $ in Thousands				3 Months Ended
Subsequent Event (Details) $ in Thousands	Apr. 21, 2016 USD ($) aircraft	Apr. 12, 2016 USD ($) aircraft	Mar. 31, 2016 USD ($) aircraft	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Apr. 05, 2016 USD ($)
Subsequent Event [Line Items]
Purchase of property and equipment				$ 159,829	$ 184,609
Long-term Debt			$ 723,500	723,500
Enhanced Equipment Trust Certificate [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount			$ 194,700	$ 194,700
Enhanced Equipment Trust Certificate [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt Instrument, Face Amount						$ 73,400
Airbus A320 [Member]
Subsequent Event [Line Items]
Number of aircraft delivered \| aircraft			2
Purchase of property and equipment			$ 63,000
Utilization of Pre-Delivery Deposits for Aircraft Purchases			$ 24,500
Debt instruments, blended interest rate			4.15%	4.15%
Airbus A321 [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Number of aircraft delivered \| aircraft		1
Long-term Debt		$ 39,700
Airbus A319 [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase of property and equipment	$ 22,000
Number of Previously Leased Aircraft Purchased \| aircraft	1