BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income tax expense (benefit)	$ 4,772	$ 5,565	$ 2,995	$ 11,493
Out-of-Period Error Resulting in Overstatement of Income Tax Expense [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income tax expense (benefit)	$ (2,800)
Out-of-Period Error Resulting in Overstatement of Income Tax Expense [Member] | Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Income tax expense (benefit)					$ 2,800