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BUSINESS COMBINATIONS - Narrative (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Jun. 11, 2020 USD ($) director $ / shares | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jan. 24, 2020 $ / shares
Business Acquisition [Line Items] |  |  |  |
Number of directors | director | 8 |  |  |
Number of directors designated by Bristow | director | 6 |  |  |
Gain on bargain purchase | $ |  | $ 75,433 | $ 0 |
Era |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Gain on bargain purchase | $ | $ 75,400 |  |  |
Former Bristow stockholders | Combined Company Common Stock |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership percentage | 77.00% |  |  |
Era Common Stockholders | Combined Company Common Stock |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership percentage | 23.00% |  |  |
Era |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Price per share (in USD per share) | $ / shares | $ 5.16 |  |  | $ 8.59

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