|
FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $)
|
Sep. 30, 2013
|
Sep. 30, 2012
|
|---|---|---|
| Short-term Debt [Line Items] | ||
| Outstanding borrowings | $ 0 | $ 0 |
|
Swingline Credit Facility [Member]
|
||
| Short-term Debt [Line Items] | ||
| Line of credit maximum borrowing capacity | 25,000,000 | |
|
Line of Credit [Member]
|
||
| Short-term Debt [Line Items] | ||
| Line of credit maximum borrowing capacity | 175,000,000 | |
|
Letter of Credit [Member]
|
||
| Short-term Debt [Line Items] | ||
| Line of credit maximum borrowing capacity | $ 75,000,000 |