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Accounts Receivable - Schedule of Components of Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Sep. 30, 2013
Receivables [Abstract]    
Accounts receivable $ 40,882 $ 39,827
Accounts receivable – unbilled 4,115 5,362
Accounts receivable, gross 44,997 45,189
Allowance for doubtful accounts (133) (3,363)
Accounts receivable, net $ 44,864 $ 41,826