LEASES - Narrative (Details) $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
|
Jun. 30, 2019
USD ($)
|
Jun. 30, 2019
USD ($)
helicopter
|
Jun. 30, 2018
helicopter
|
|
| Leases [Abstract] | |||
| Rental expense | $ 0.8 | $ 1.6 | |
| Short-term lease expense | 0.2 | 0.5 | |
| Lease not yet commenced, future minimum payments | 1.5 | $ 1.5 | |
| Number of helicopter dispositions | helicopter | 6 | 20 | |
| Sales-type lease, interest income | 0.5 | $ 0.9 | |
| Sales-type lease receivables | 18.6 | 18.6 | |
| Sales-type lease receivables, current | 14.8 | 14.8 | |
| Sales-type lease receivables, non-current | $ 3.8 | $ 3.8 | |
| X | ||||||||||
- Definition Lessee, Operating Lease, Lease Not Yet Commenced, Undiscounted Amount No definition available.
|
| X | ||||||||||
- Definition Number Of Helicopter Dispositions No definition available.
|
| X | ||||||||||
- Definition Sales-type Lease, Lease Receivables, Current No definition available.
|
| X | ||||||||||
- Definition Sales-type Lease Receivables, Non-current No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of operating lease expense. Excludes sublease income. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of interest income from net investment in sales-type lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|