Annual report pursuant to Section 13 and 15(d)

Income Taxes (Textual) (Details)

v3.5.0.2
Income Taxes (Textual) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Tax Contingency [Line Items]      
Additions to valuation allowance $ 500 $ 11,460 $ 3,900
Operating loss carryforwards, annual utilization limits 800    
Unrecognized tax benefits that would impact effective tax rate 1,700    
Unrecognized tax benefits, income tax penalties and interest expense 400 300 $ 400
Unrecognized tax benefits, income tax penalties and interest accrued $ 2,300 $ 1,800  
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 $ 14,000    
Foreign Tax Authority      
Income Tax Contingency [Line Items]      
Net operating loss carryforwards 47,300    
Tax credits 3,600    
State Jurisdiction      
Income Tax Contingency [Line Items]      
Net operating loss carryforwards $ 7,500