ASSET IMPAIRMENTS

12 Months Ended

Dec. 31, 2018

(20)	ASSET IMPAIRMENTS

The table below summarizes the number of vessels and ROVs impaired, the amount of impairment incurred and the combined fair value of the assets after having recorded the impairment charges.

	Successor				Predecessor
			Period from		Period from
	Twelve Months		August 1, 2017		April 1, 2017		Twelve Months
	Ended		through		through		Ended
(In thousands)	December 31, 2018		December 31, 2017		July 31, 2017		March 31, 2017
Number of vessels impaired during the period		56		5		79		132
Number of ROVs impaired during the period		—		—		—		8
Amount of impairment incurred (A)	$	61,132	$	16,777		184,748		484,727

(A)

The twelve months ended December 31, 2018, the period August 1, 2017 through December 31, 2017 and the twelve months ended March 31, 2017 included $3.5 million, $2.3 million and $2.2 million respectively, of impairments related to inventory and other non-vessel assets. There were no impairments to non-vessel assets during the period April 1, 2017 through July 31, 2017.

Impairments incurred since July 2017 are the result of our customers' reduction in offshore exploration and production expenditures caused by the ongoing and sustained low levels of crude oil and natural gas prices as well as our efforts to reduce the oversupply of vessels which currently exists in the offshore supply vessel market through the scrapping of vessels.

Please refer to Note (1) for a discussion of our accounting policy for accounting for the impairment of long-lived assets.