Restatements (Details Textual) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Sep. 30, 2011
Restatements (Textual) [Abstract]
Understated amount of accrued payroll and related costs	$ 4,173	$ 6,979
Overstated amount of other accrued liabilities	14,344	4,840
Overstated amount of other long-term liabilities	(4,679)	992
Understated amount of Cash paid for interest	47,124	31,291
Overstated amount of current liability	154,577		154,167
Adjustment [Member]
Restatements (Textual) [Abstract]
Understated amount of accrued payroll and related costs	4,373
Overstated amount of other accrued liabilities	(314)
Overstated amount of other long-term liabilities	(4,059)
Understated amount of Cash paid for interest	10,326
Overstated amount of current liability			(42,300)
Overstated amount of total Liabilities			$ (42,200)