Detail of Certain Balance Sheet Accounts - AP (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Accounts Payable and Accrued Liabilities [Abstract]
Accounts Payable, Trade	$ 38,639	$ 40,659
Accrued Employee Benefits	22,076	18,057
Accrued Insurance	4,560	4,963
Other Accrued Liabilities	8,757	10,641
Accounts Payable and Accrued Liabilities, Current, Total	$ 74,032	$ 74,320