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Business Combination - Pro Formas (Details) - Business Acquisitions - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Business Acquisition [Line Items]        
Pro Forma Revenue $ 183,162 $ 161,283 $ 515,608 $ 458,446
Pro Forma Net Income $ 6,972 $ 6,079 $ 15,828 $ 16,288