Accounts Receivable (Tables)

6 Months Ended

Mar. 31, 2013

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

The components of accounts receivable consisted of the following:

	As of			As of
(in thousands)	March 31, 2013			September 30, 2012
Accounts receivable	$	32,167		$	33,893
Accounts receivable – unbilled	10,651			6,325
Accounts receivable, gross	42,818			40,218
Allowance for doubtful accounts	(3,281		)	(3,279		)
Accounts receivable, net	$	39,537		$	36,939