Summary of Significant Accounting Policies Pensions (Details) (USD $)	1 Months Ended	12 Months Ended
	Apr. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Multiemployer Plan Percentage Decrease in Pension Rights	6.30%
Multiemployer Plan, Period Contributions		$ 1,087,000	$ 1,042,000	$ 1,202,000
Pensioenfonds Metaal en Techniek
Multiemployer Plans Contribution Rate (less than 5%)		5.00%
Multiemployer Plan, Coverage Ratio Of Plan Assets To Obligations		102.80%
Multiemployer Plan Premium Percentage	16.60%
Multiemployer Plan Number Of Companies Covered		33,000
Multiemployer Plan Number Of Employees		1,200,000
Multiemployer Plan, Period Contributions		929,000	879,000	1,021,000
Multiemployer Plans Plan Assets as of September 30, 2014		70,000,000,000
Multiemployer Plans Present Value Of Accumulated Plan Benefits as of September 30, 2014		68,100,000,000
Other Plans
Multiemployer Plan, Period Contributions		$ 158,000	$ 163,000	$ 181,000
Minimum | Pensioenfonds Metaal en Techniek
Multiemployer Plan, Coverage Ratio Of Plan Assets To Obligations		104.30%
Multiemployer Plan Coverage Ratio Of Plan Assets To Obligations By December 31, 2014		104.30%
The Netherlands | Pensioenfonds Metaal en Techniek
Multiemployer Plan Number Of Employees		120