TAXES Tax Jurisdiction (Details)	12 Months Ended
	Mar. 31, 2018
United States
Income Tax Contingency [Line Items]
Open Tax Year	2014
U.K.
Income Tax Contingency [Line Items]
Open Tax Year	2017
Nigeria
Income Tax Contingency [Line Items]
Open Tax Year	2009
Trinidad
Income Tax Contingency [Line Items]
Open Tax Year	2005
Australia
Income Tax Contingency [Line Items]
Open Tax Year	2014
Norway
Income Tax Contingency [Line Items]
Open Tax Year	2014