COMMITMENTS (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Commitments
Sublease income	$ 200,000	$ 400,000	$ 600,000
Rental expense, net of sublease income	12,600,000	10,200,000	9,100,000
Future minimum payments, net of minimum sublease income, under noncancelable operating leases
2014	12,405,000
2015	9,710,000
2016	7,102,000
2017	4,870,000
2018	5,831,000
Thereafter	3,057,000
Total future minimum payments, net of minimum sublease income	$ 42,975,000
Maximum
Commitments
Term of lease	10 years