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Income Tax (Tables)
9 Months Ended
Jun. 30, 2018
Income Tax  
Schedule of provision for income taxes and our effective tax rate
    Three Months Ended     Nine Months Ended  
(in thousands)  

June 30,

2018

   

June 30,

2017

   

June 30,

2018

   

June 30,

2017

 
                         
Income tax benefit (expense)   $ 407     $ (202 )   $ (259 )   $ (332 )
Effective tax rate     18 %     3 %     -4     6 %