Term Receivables and Trade Accounts Receivable (Tables)

3 Months Ended

Apr. 30, 2016

Term Receivables and Trade Accounts Receivable [Abstract]

Term receivable and trade accounts receivable balances

Term receivable and trade accounts receivable balances were as follows:

As of	April 30, 2016		January 31, 2016
Trade accounts receivable	$	87,423	$	176,021
Term receivables, short-term	$	323,755	$	317,188
Term receivables, long-term	$	253,636	$	268,657

Credit risk assessment for long-term receivables

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

As of	April 30, 2016		January 31, 2016
S&P credit rating:
AAA+ through BBB-	$	131,959	$	195,764
BB+ and lower	80,904		22,520
	212,863		218,284
Internal credit assessment	40,773		50,373
Total long-term term receivables	$	253,636	$	268,657

Change in allowance for doubtful accounts

The following shows the change in allowance for doubtful accounts:

Allowance for doubtful accounts	Beginning balance		Expense adjustment			Other deductions(1)		Ending  balance
Three months ended April 30, 2016	$	3,826	$	(770	)	$	274	$	3,330
Three months ended April 30, 2015	$	4,217	$	(636	)	$	4	$	3,585

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