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ASSET IMPAIRMENTS (Tables)

6 Months Ended

Sep. 30, 2017

Asset Impairment Charges [Abstract]

Summary of Combined Fair Value of Assets Incurred Impairments

The below tables summarize the combined fair value of the assets that incurred impairments, along with the amount of impairment.

		Successor					Predecessor
		Period from					Period from
		August 1, 2017					July 1, 2017				Three Months
		through					through				Ended
(In thousands)		September 30, 2017					July 31, 2017				September 30, 2016
Number of vessels impaired in the period			—					8				42
Number of ROVs impaired during the period			—					—				8
Amount of impairment incurred	$		—					21,325				129,562
Combined fair value of assets incurring impairment			—					29,339				322,550

		Successor					Predecessor
		Period from					Period from
		August 1, 2017					April 1, 2017				Six Months
		through					through				Ended
(In thousands)		September 30, 2017					July 31, 2017				September 30, 2016
Number of vessels impaired in the period			—					79				54
Number of ROVs impaired during the period			—					—				8
Amount of impairment incurred	$		—					184,748				166,448
Combined fair value of assets incurring impairment			—					571,821				477,950