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COMMITMENTS AND CONTINGENCIES (Tables)
 12 Months Ended
Sep. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Aggregate Undiscounted Future Minimum Rental Payments
The aggregate undiscounted future minimum rental payments under these leases are as follows (amounts in thousands): 
Payments due by period
2013
2014
2015
2016
2017
Thereafter
$
18,596

$
16,971

$
15,635

$
14,432

$
12,528

$
38,630