Receivables

3 Months Ended

Aug. 31, 2012

Receivables [Abstract]

RECEIVABLES

3. RECEIVABLES

A summary of accounts receivable as of August 31, 2012 and May 31, 2012 is as follows (in thousands):

	August 31, 2012			May 31, 2012
	(unaudited)
Trade accounts receivable	$	133,901		$	141,469
Unbilled revenues		27,927			20,561
Allowance for doubtful accounts		(5,034	)		(4,405	)
Total	$	156,794		$	157,625