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LONG-TERM DEBT (Details 2) (USD $)
12 Months Ended1 Months Ended
Jun. 30, 2011
Sep. 30, 2011
Jun. 30, 2011
Interest rate swap agreement maturing on May 13, 2016
Sep. 30, 2011
Accrued and other liabilities.
Sep. 30, 2011
Other liabilities
Interest rate swap agreement     
Variable interest rate description before hedging of debtLIBOR LIBOR  
Amounts expected to be reclassified from other comprehensive income to interest expense in the next twelve months $ 4,500,000   
Amount of term loan facility debt hedged 292,500,000   
Fair value of interest rate swap liability $ 12,074,000 $ 4,523,000$ 7,551,000