Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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Schedule of Defined Benefit Plan Assets Fair Value Measurements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	100.00%	100.00%
Defined benefit plan, fair value of plan assets	$ 19,350	$ 22,543	$ 16,498
Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	93.00%	93.00%
Other Investments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	7.00%	7.00%
Fair Value, Measurements, Recurring
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	$ 19,350	$ 22,543
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	19,350	22,543
Fair Value, Measurements, Recurring \| Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	18,038	20,884
Fair Value, Measurements, Recurring \| Insurance Contracts \| Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	18,038	20,884
Fair Value, Measurements, Recurring \| Other Investments
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	1,312	1,659
Fair Value, Measurements, Recurring \| Other Investments \| Fair Value, Inputs, Level 3
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	$ 1,312	$ 1,659