Accounts Receivable (Tables)

6 Months Ended

Jan. 31, 2020

Accounts Receivable [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable, net consisted of:

(In thousands)	January 31, 2020			July 31, 2019
Advance charges receivable	$	349,517		$	280,835
Trade accounts receivable	98,529			89,274
Other receivables	4,233			2,098
	452,279			372,207
Less: Allowance for doubtful accounts	(6,316		)	(4,942		)
Accounts receivable, net	$	445,963		$	367,265