REVENUE - Narrative (Details)	3 Months Ended
	Jun. 30, 2019
Percentage Of Revenue For Which Commitments Are To Be Honoured	70.00%
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	60 months
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	13 months