SEGMENT REPORTING - Geographic Information of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment reporting information
Property and equipment, net	$ 2,215,991	$ 2,336,213
Americas
Segment reporting information
Property and equipment, net	1,037,018	1,003,708
Asia
Segment reporting information
Property and equipment, net	737,551	903,288
Europe
Segment reporting information
Property and equipment, net	441,422	429,217
Singapore
Segment reporting information
Property and equipment, net	$ 8,600	$ 12,300
Long Lived Assets | Americas
Segment reporting information
Concentration risk percentage	47.00%	43.00%
Long Lived Assets | Asia
Segment reporting information
Concentration risk percentage	33.00%	39.00%
Long Lived Assets | Europe
Segment reporting information
Concentration risk percentage	20.00%	18.00%