Term Receivable and Trade Accounts Receivable Balances Term Receivables and Trade Accounts Receivable (Tables)

12 Months Ended

Jan. 31, 2016

Term Receivables and Trade Accounts Receivable [Abstract]

Term receivable and trade accounts receivable balances

Trade accounts receivable and term receivable balances were as follows:

As of January 31,	2016		2015
Trade accounts receivable	$	176,021	$	208,996
Term receivables, short-term	$	317,188	$	337,626
Term receivables, long-term	$	268,657	$	301,862

Credit risk assessment for long-term receivables

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

As of January 31,	2016		2015
S&P credit rating:
AAA+ through BBB-	$	195,764	$	192,430
BB+ and lower	22,520		31,939
	218,284		224,369
Internal credit assessment	50,373		77,493
Total long-term term receivables	$	268,657	$	301,862

Change in allowance for doubtful accounts

The following shows the change in allowance for doubtful accounts for the years ended January 31, 2016, 2015, and 2014:

Allowance for doubtful accounts	Beginning  balance		Expense adjustment			Other deductions(1)			Ending balance
Year ended January 31, 2016	$	4,217	$	(349	)	$	(42	)	$	3,826
Year ended January 31, 2015	$	5,469	$	(988	)	$	(264	)	$	4,217
Year ended January 31, 2014	$	5,331	$	517		$	(379	)	$	5,469

Sale Of Receivables

We sold the following receivables to financing institutions on a non-recourse basis and recognized the following gain on the sale of those receivables:

Year ended January 31,	2016			2015			2014
Net proceeds	$	42,661		$	22,572		$	22,943
Trade receivables, short-term	16,344			12,715			11,705
Term receivables, long-term	27,770			10,461			11,912
Total receivables sold	44,114			23,176			23,617
Discount on sold receivables	(1,453		)	(604		)	(674		)
Unaccreted interest on sold receivables	2,723			922			890
Gain on sale of receivables	$	1,270		$	318		$	216