Represents the number of aircrafts involved in sale leaseback transaction.

No definition available.

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- Definition

Represents the term of lease over which the deferred gain realized on the sale of the facility is amortized.

+ References

No definition available.

+ Details

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- Definition

Represents Sale-leaseback transaction were resulting in the recognition of a loss

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

The accumulated depreciation and amortization related to the asset(s) sold in connection with the property sold to another party and leased back to the seller.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 55
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Balance Type:	credit
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- Definition

The amount of the gain recorded in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller to be recognized in future periods.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Balance Type:	credit
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- Definition

The portion of the gain that will be recorded as income or a reduction in rent expense in future periods less amounts recognized in the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The historical cost of the asset(s) sold in connection with the sale of the property to another party and the lease of the property back to the seller.

+ References

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-Publisher FASB
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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.

+ Details

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- Definition

Amount of cash inflow after closing and deferred financing costs received by a seller-lessee in a sale-leaseback recognized in investing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Details

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- Details

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Commitments and Contingencies - Aircraft Sale-Leaseback (Details) $ in Millions		3 Months Ended	12 Months Ended
	Oct. 03, 2003 USD ($)	May 31, 2015 USD ($) aircraft	May 31, 2016 USD ($) aircraft	May 31, 2015 USD ($) aircraft
Aircraft Sale-Leaseback Transactions
Proceeds from sale-leaseback				$ 40.3
Garden City lease
Aircraft Sale-Leaseback Transactions
Proceeds from sale-leaseback	$ 14.0
Cost of the facility	9.5
Accumulated depreciation of the facility	4.6
Deferred gain realized on the sale	$ 9.1
Deferred gain amortization period	20 years
Unamortized balance of the deferred gain		$ 3.8	$ 3.4	3.8
S-92 rotary-wing aircraft
Aircraft Sale-Leaseback Transactions
Proceeds from sale-leaseback				$ 40.3
Number of aircrafts involved in sale leaseback transaction \| aircraft		2		2
Sale leaseback transaction loss		$ 1.1
AW-189 rotary-wing aircraft
Aircraft Sale-Leaseback Transactions
Proceeds from sale-leaseback			38.5
Deferred gain realized on the sale			$ 1.7
Deferred gain amortization period			10 years
Number of aircrafts involved in sale leaseback transaction \| aircraft			2