RETIREMENT PLANS (Details) (USD $)	12 Months Ended
	Sep. 30, 2014 plan	Sep. 30, 2013	Sep. 30, 2012
Defined Contribution Plan Disclosure [Line Items]
Number of qualified retirement plans	2
Qualified participants contribution percentage (up to 100%)	100.00%
Maximum contribution by qualified participants	$ 52,000
Employer matching contribution per employee contribution	200.00%
Employers matching contribution, annual vesting percentage	100.00%
Award requisite service period	3 years
Amount of forfeitures utilized to reduce cash contribution requirements	300,000	200,000	200,000
Actual cash contributions	9,800,000	6,800,000	4,600,000
Amount of forfeitures utilized to reduce future cash contribution requirements	$ 700,000
Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of earnings contributed by participants	1.00%
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of earnings contributed by participants	5.00%