Accounts Receivable, Net (Tables)

12 Months Ended

Jul. 31, 2018

Accounts Receivable, Net [Abstract]

Schedule of accounts receivable

Accounts receivable, net consisted of:

	July 31,
(In thousands)	2018			2017
Advance charges receivable	$	230,092		$	204,097
Trade accounts receivable	125,255			110,189
Other receivables	1,698			1,871
	357,045			316,157
Less: Allowance for doubtful accounts	(5,444		)	(4,311		)
Accounts receivable, net	$	351,601		$	311,846

Schedule of movements in the allowance for doubtful accounts

The movements in the allowance for doubtful accounts were as follows:

	July 31,
(In thousands)	2018			2017			2016
Balance at beginning of year	$	4,311		$	4,120		$	2,988
Charged to costs and expenses	4,255			2,928			3,646
Deductions to bad debt	(3,122		)	(2,737		)	(2,514		)
Balance at end of year	$	5,444		$	4,311		$	4,120