SHARE BASED COMPENSATION PLANS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Effect to income of share-based compensation expense, net of tax benefits [Abstract]
Total employee stock-based compensation expense recognized in income, net of tax effects of $3,907, $192, and $66, respectively	$ 7,878	$ 6,486	$ 559
Tax effects of employee's stock-based compensation expense recognized income	3,139	$ 3,907	$ 192
Stock based compensation expense not yet recognized in income	$ 17,000
Weighted average remaining period for unrecognized stock based compensation	3 years 7 months 2 days
Period that options are issued	10 years
Percentage of options vesting at either grant date or over four year period	100.00%
Period that options vest	4 years
Granted (in shares)	0	0	0
Fair value of share granted (in shares)	354,108	949,812
Award vesting	P8Y
Director [Member]
Effect to income of share-based compensation expense, net of tax benefits [Abstract]
Fair value of share granted (in shares)	1,100,000	500,000	200,000