Term Receivables and Trade Accounts Receivable (Tables)

6 Months Ended

Jul. 31, 2011

Term Receivable and Trade Accounts Receivable Balances

Term receivable and trade accounts receivable balances were as follows:

As of	July 31, 2011		January 31, 2011
Trade accounts receivable	$	91,299	$	153,733
Term receivables, short-term	$	185,321	$	193,342
Term receivables, long-term	$	186,483	$	167,425

Credit Risk Assessment for Long-term Receivables

The credit risk assessment for our long-term receivables was as follows:

As of	July 31, 2011		January 31, 2011
S&P credit rating:
AAA+ through BBB-	$	105,575	$	84,685
BB+ and lower		10,360		19,473
		115,935		104,158
Internal credit assessment		70,548		63,267
Total long-term term receivables	$	186,483	$	167,425

Change in Allowance for Doubtful Accounts

The following shows the change in allowance for doubtful accounts for the six months ended July 31, 2011:

	Beginning balance as of January 31, 2011		Charged (credited) to expense			Deductions(1)			Ending balance as of July 31, 2011
Allowance for doubtful accounts	$	3,941	$	(218	)	$	(153	)	$	3,570

⁽¹⁾  Specific account write-offs and foreign exchange.