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Income Taxes - Additional Information (Details) - USD ($)
1 Months Ended
Oct. 31, 2016
Sep. 30, 2015
Income Taxes    
Subsidiary Revenue   $ 53,000,000.0
Reversal of Service Tax Refund $ 160,000  
Service Tax Credit Receivable $ 900,000  
Maximum    
Income Taxes    
Percentage for Subsidiary Service Tax   15.00%
Minimum    
Income Taxes    
Percentage for Subsidiary Service Tax   12.36%