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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Fair value - financial instruments
The carrying amounts and estimated fair values of financial instruments not measured at fair value on a recurring basis at September 30, 2013 and 2012 are as follows:
 
 
 
 
 
Classification of Estimated Fair Value
(Thousands)
Carrying
Amount
 
Fair
Value
 
Quoted
Prices in Active Markets
(Level 1)
 
Significant Observable Inputs
(Level 2)
 
Significant Unobservable Inputs
(Level 3)
As of September 30, 2013
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
$
52,981

 
$
52,981

 
$
52,824

 
$
157

 
$
—

Short-term debt
74,000

 
74,000

 
—

 
74,000

 
—

Long-term debt, including current portion
912,712

 
954,126

 
—

 
954,126

 
—

 
 
 
 
 
 
 
 
 
 
As of September 30, 2012
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
$
27,457

 
$
27,457

 
$
17,380

 
$
10,077

 
$
—

Short-term debt
40,100

 
40,100

 
—

 
40,100

 
—

Long-term debt, including current portion
364,416

 
452,768

 
—

 
452,768

 
—