COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Sep. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Schedule of Vessel Commitments to Acquire and Construct New Vessels and ROVs, by Vessel Type

The table below summarizes the company’s various vessel commitments to acquire and construct new vessels, by vessel type, as of September 30, 2016:

	Number				Invested		Remaining
	of		Total		Through		Balance
(In thousands, except vessel count)	Vessels		Cost		9/30/16		9/30/16
Vessels under construction (A):
Deepwater PSVs		3	$	163,657		115,683		47,974
Total vessel commitments (B)		3	$	163,657		115,683		47,974

(A) Six additional option vessels and a fast supply boat are not included in the table above.

(B) The company is entitled to receive a refund of prior shipyard payments totaling $14.3 million which would reduce the remaining balance of vessel commitments. See further discussion below.