Income Taxes (Textual) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Income Tax Contingency [Line Items]
Additions to valuation allowance	$ 11,460	$ 3,900	$ 5,850
Undistributed earnings of foreign subsidiaries	900
Unrecognized tax benefits that would impact effective tax rate	1,800
Unrecognized tax benefits, income tax penalties and interest expense	300	$ 400	$ 500
Unrecognized tax benefits, income tax penalties and interest accrued	$ 1,800			$ 1,600
Minimum
Income Tax Contingency [Line Items]
Number of years open for tax examinations	3 years
Maximum
Income Tax Contingency [Line Items]
Number of years open for tax examinations	5 years
Federal
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 16,900
Foreign Tax Authority
Income Tax Contingency [Line Items]
Net operating loss carryforwards	37,800
Tax credits	3,600
State Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss carryforwards	$ 11,400