Employee Benefit Plans (Tables)

12 Months Ended

Jul. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Changes in Accumulated Postemployment Benefit Obligations

The following table provides a reconciliation of the changes in the Plan’s accumulated benefit obligation during the years ended July 31:

	2016			2015
Obligation at beginning of year	$	4,135		$	8,056
Service cost	9			210
Interest cost	114			222
Actuarial (gain) loss	(38		)	502
Benefit payments	(420		)	(365		)
Plan amendments	—			(1,935		)
Curtailment gain	—			(2,555		)
Obligation at end of fiscal year	$	3,800		$	4,135

Schedule of Amounts Recognized in Balance Sheet

As of July 31, 2016 and 2015, amounts recognized as liabilities in the accompanying Consolidated Balance Sheets consist of:

	2016		2015
Current liability	$	499	$	659
Non-current liability	3,301		3,476
	$	3,800	$	4,135

Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

As of July 31, 2016 and 2015, pre-tax amounts recognized in accumulated other comprehensive loss in the accompanying Consolidated Balance Sheets consist of:

	2016		2015
Net actuarial gain	$	6,048	$	6,655
Prior service credit	—		1,035
	$	6,048	$	7,690

Schedule of Net Periodic Benefit Cost Not yet Recognized

Net periodic benefit (gain) cost for the Plan for fiscal years 2016, 2015, and 2014 includes the following components:

	Years Ended July 31,
	2016			2015			2014
Net periodic postretirement benefit (gain) cost included the following components:
Service cost	$	9		$	210		$	674
Interest cost	114			222			534
Amortization of prior service credit	(1,035		)	(1,169		)	(203		)
Amortization of net actuarial gain	(646		)	(804		)	(265		)
Curtailment gain	—			(4,296		)	—
Periodic postretirement benefit (gain) cost	$	(1,558	)	$	(5,837	)	$	740

Schedule of Assumptions Used

The following assumptions were used in accounting for the Plan:

	2016		2015		2014
Weighted average discount rate used in determining accumulated postretirement benefit obligation	2.50	%	3.00	%	3.50	%
Weighted average discount rate used in determining net periodic benefit cost	3.00	%	3.41	%	4.00	%
Assumed health care trend rate used to measure APBO at July 31	7.50	%	7.00	%	7.50	%
Rate to which cost trend rate is assumed to decline (the ultimate trend rate)	5.50	%	5.50	%	5.50	%
Fiscal year the ultimate trend rate is reached	2018		2018		2018

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates

A one-percentage point change in assumed health care cost trend rates would have the following effects on the Plan:

	One-Percentage Point Increase		One-Percentage Point Decrease
Effect on future service and interest cost	$	3	$	(3	)
Effect on accumulated postretirement benefit obligation at July 31, 2016	17		(18		)

Schedule of Expected Benefit Payments

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid during the years ending July 31:

2017	$	499
2018	449
2019	377
2020	359
2021	339
2022 through 2026	1,342