Summary of Significant Accounting Policies (Details 3) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2015 customer item	Jun. 30, 2014 customer item	Jun. 30, 2015 USD ($) customer item	Jun. 30, 2014 customer item	Sep. 30, 2014 USD ($)
Concentration of Credit Risk
Number of banks for maintenance of cash balances	2		2
Allowance for doubtful accounts | $			$ 3.6		$ 3.7
Revenues Net | Customer Concentration Risk
Concentrations
Number of major customers | customer	3	3	3	4
Revenues Net | Customer Concentration Risk | Eclipse Aerospace Inc
Concentrations
Sales percentage	23.00%	22.00%	18.00%	14.00%
Revenues Net | Customer Concentration Risk | American Airlines Inc
Concentrations
Sales percentage	20.00%
Revenues Net | Customer Concentration Risk | Pilatus Aircraft Limited
Concentrations
Sales percentage	11.00%	13.00%	23.00%	15.00%
Revenues Net | Customer Concentration Risk | US Department of Defense
Concentrations
Sales percentage			11.00%	11.00%
Revenues Net | Customer Concentration Risk | Fed Ex Corporation
Concentrations
Sales percentage		17.00%		13.00%
Inventory | Supplier Concentration Risk
Concentrations
Number of major suppliers	5	1	2	2