PROPERTY AND EQUIPMENT, ASSETS HELD FOR SALE AND OEM COST RECOVERIES OEM, Cost Recoveries (Details) - OEM Cost recoveries $ in Millions |
3 Months Ended | 7 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
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Jun. 30, 2018
USD ($)
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Oct. 31, 2019
USD ($)
Aircraft
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Mar. 31, 2020
USD ($)
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Mar. 31, 2019
USD ($)
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Mar. 31, 2018
USD ($)
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| Property and. Equipment [Abstract] | |||||
| Original equipment manufacturer recoveries sought | $ 136.0 | ||||
| Original equipment manufacturer amount received | $ 11.0 | $ 11.0 | $ 0.0 | $ 1.3 | 125.0 |
| Depreciation expense | 94.5 | ||||
| Offset amount, expense | 7.9 | 16.6 | |||
| Deferred OEM cost recovery | 6.0 | $ 13.9 | |||
| Number of aircrafts returned | Aircraft | 4 | ||||
| Offset amount direct cost | 7.6 | ||||
| Rent Expense | |||||
| Property and. Equipment [Abstract] | |||||
| Offset amount, expense | 7.9 | ||||
| Direct cost | |||||
| Property and. Equipment [Abstract] | |||||
| Offset amount direct cost | $ (2.1) | ||||
| X | ||||||||||
- Definition Amount of increase (decrease) in accumulated depreciation, depletion and amortization of property, plant and equipment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount that will be offset against future earnings by anticipated increases or decreases in other expenses or revenues. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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. No definition available.
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- Definition Amount as of balance sheet date of deferred cost recovery. Cost recovery will be amortized against rent expense over lease term. No definition available.
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- Definition The number of aircrafts returned. No definition available.
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- Definition The amount offset against expense recognized within the period. No definition available.
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- Definition Amount received from original equipment manufacturers. No definition available.
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| X | ||||||||||
- Definition Amount of recoveries seeking from original equipment manufacturers. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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- Details
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