RESTRUCTURING AND OTHER RELATED CHARGES (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,451	$ (109)	$ 16,160
Restructuring costs, asset impairment charges and other	4,300
Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,500
Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,600
Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200
Severance benefits from reduction-in-force
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,400
Severance benefits from reduction-in-force | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,400
Severance benefits from reduction-in-force | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Severance benefits from reduction-in-force | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Lease exit charges and asset impairments in Netherlands
Restructuring Cost and Reserve [Line Items]
Restructuring charges	700
Lease exit charges and asset impairments in Netherlands | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	700
Lease exit charges and asset impairments in Netherlands | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Lease exit charges and asset impairments in Netherlands | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Write-off of unrecoverable indirect tax asset in Brazil
Restructuring Cost and Reserve [Line Items]
Restructuring charges	700
Write-off of unrecoverable indirect tax asset in Brazil | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Write-off of unrecoverable indirect tax asset in Brazil | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	700
Write-off of unrecoverable indirect tax asset in Brazil | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Asset impairments related to previous Clarity operations
Restructuring Cost and Reserve [Line Items]
Restructuring charges	400
Asset impairments related to previous Clarity operations | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	400
Asset impairments related to previous Clarity operations | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Asset impairments related to previous Clarity operations | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Loss on Clarity asset sale
Restructuring Cost and Reserve [Line Items]
Restructuring charges	900
Loss on Clarity asset sale | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Loss on Clarity asset sale | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	900
Loss on Clarity asset sale | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Accelerated vesting of restricted stock
Restructuring Cost and Reserve [Line Items]
Restructuring charges	200
Accelerated vesting of restricted stock | Restructuring and Other Related Charges (Credits)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Accelerated vesting of restricted stock | Cost of Revenues
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0
Accelerated vesting of restricted stock | Selling, General, and Administrative
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 200
Disposal Group, Held-for-sale | Clarity
Restructuring Cost and Reserve [Line Items]
Lease term	12 months
Transition services agreement term	1 year