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INVESTMENT IN UNCONSOLIDATED COMPANIES (Tables)
 12 Months Ended
Mar. 31, 2017
Equity Method Investments And Joint Ventures [Abstract]  
Schedule of Investments in at Equity and Advances to Unconsolidated Companies

Investments in, at equity, and advances to unconsolidated joint venture companies at March 31, were as follows:

 

(In thousands)

 

Percentage

Ownership

 

 

2017

 

 

2016

 

Sonatide Marine, Ltd. (Angola)

 

 

49%

 

 

$

45,115

 

 

 

37,141

 

DTDW Holdings, Ltd. (Nigeria)

 

 

40%

 

 

 

—

 

 

 

361

 

Investments in, at equity, and advances to

   unconsolidated companies

 

 

 

 

 

$

45,115

 

 

 

37,502