Contingent Liabilities, Commitments and Legal Matters (Tables)

6 Months Ended

Jan. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Losses Due to Repurchases Related to Repurchase Agreements

The following table reflects losses incurred related to repurchase agreements that were settled in the periods noted. The Company believes that any future losses under these agreements will not have a significant effect on the Company’s consolidated financial position, results of operations or cash flows:

	Three Months Ended January  31,				Six Months Ended January 31,
	2017		2016		2017		2016
Cost of units repurchased	$	1,306	$	189	$	2,858	$	1,008
Realization of units resold		1,118		189		2,662		876
Losses due to repurchase	$	188	$	—	$	196	$	132