ACQUISITIONS AND DISPOSITIONS - (Details) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2019
USD ($)
helicopter
|
Dec. 31, 2018
USD ($)
helicopter
|
Dec. 31, 2017
USD ($)
helicopter
|
|
| Property, Plant and Equipment [Line Items] | |||
| Purchases of property and equipment | $ (6,558) | $ (9,216) | $ (16,770) |
| Proceeds from disposition of property and equipment | $ 13,252 | $ 29,590 | $ 9,392 |
| Number of helicopter additions | helicopter | 0 | 1 | 1 |
| H225 Helicopters | |||
| Property, Plant and Equipment [Line Items] | |||
| Proceeds from disposition of property and equipment | $ 5,000 | ||
| Number of helicopter additions | helicopter | 0 | 1 | 1 |
| X | ||||||||||
- Definition Significant Acquisitions and Disposals, Number of Acquisitions No definition available.
|
| X | ||||||||||
- 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| 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.
|
| X | ||||||||||
- Details
|