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v3.8.0.1

SUBSEQUENT EVENTS (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended
--- | --- | ---
May 01, 2018 USD ($) TankBarge bbl | Apr. 30, 2018 USD ($) $ / shares shares | Feb. 28, 2018 shares
Stock Options [Member] | Joseph H. Pyne [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Stock options, granted (in shares) | shares |  |  | 21,396
Restricted Stock [Member] | Joseph H. Pyne [Member] |  |  |
Subsequent Event [Line Items] |  |  |
RSUs, granted (in shares) | shares |  |  | 13,245
Subsequent Event [Member] | Joseph H. Pyne [Member] |  |  |
Subsequent Event [Line Items] |  |  |
One time bonus payment | $ |  | $ 15,000 |
Acceleration value of vesting of unvested awards | $ |  | 3,057 |
Noncash compensation expense | $ |  | $ 18,057 |
Value of stock awards granted (in dollars per share) | $ / shares |  | $ 0.30 |
Subsequent Event [Member] | Stock Options [Member] | Joseph H. Pyne [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Acceleration of vesting of unvested awards (in shares) | shares |  | 26,819 |
Subsequent Event [Member] | Restricted Stock [Member] | Joseph H. Pyne [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Acceleration of vesting of unvested awards (in shares) | shares |  | 30,643 |
Subsequent Event [Member] | Targa [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Cash consideration | $ | $ 69,300 |  |
Subsequent Event [Member] | Targa [Member] | Inland Pressure Tank Barges [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Number of maritime vessels acquired | TankBarge | 16 |  |
Tank barge barrel capacity | bbl | 258,000 |  |

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