Represents the number of installments in which awards are vested to non-employees.

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Represents the number of installments in which awards are vested.

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Portion of the awards that is immediately vested at the date of grant to nonemployees.

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Represents the number of stock option plans under the share-based arrangements.

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Description of the period of time over which a non-employee director's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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No definition available.

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Represents the term of long term incentive plan created during fiscal 2012.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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No definition available.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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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.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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EQUITY PLANS (Details) $ in Millions	12 Months Ended
EQUITY PLANS (Details) $ in Millions	Aug. 01, 2015 USD ($) Plan installment shares	Aug. 02, 2014 USD ($) shares	Aug. 03, 2013 USD ($) shares	Dec. 16, 2010 shares
Equity plans
Share-based compensation expense \| $	$ 14.0	$ 14.6	$ 15.1
Long term incentive plan term	2 years
Unrecognized compensation cost \| $	$ 27.8
Estimated weighted-average period for unrecognized compensation cost (in years)	2 years 6 months
Stock Incentive Plan 1996
Equity plans
Maximum term of options granted	10 years
Shares authorized for grant under the plans	9,050,000
Stock Incentive Plan 2002
Equity plans
Maximum term of options granted	10 years
Shares authorized for grant under the plans	9,050,000
Equity Incentive Plan 2004
Equity plans
Portion vested on grant	0.3333
Maximum term of options granted	10 years
Shares authorized for grant under the plans	2,500,000
Number of shares available for grant				1,054,267
Number of equal annual installments in which awards are vested for employees (in installments) \| installment	4
Equity Incentive Plan 2012
Equity plans
Shares authorized for grant under the plans	9,050,000
Number of shares available for grant	761,493
Number of equal annual installments in which awards are vested for non-employee directors \| installment	2
Performance-based share awards
Equity plans
Share-based compensation expense \| $	$ (1.0)	$ 1.0	$ 3.3
Weighted average assumptions
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		22,229	25,000
Stock options
Equity plans
Number of stock option plans \| Plan	4
Graded vesting period for employees	4 years
Graded vesting period for non-employee directors	6 months
Portion vested on grant	0.3333
Weighted average assumptions
Expected volatility	26.20%	28.50%	29.80%
Dividend yield	0.00%	0.00%	0.00%
Risk free interest rate	1.40%	1.20%	0.30%
Expected term (in years)	4 years	3 years	3 years
Executive-leadership team \| New performance-based equity compensation arrangement with performance-based vesting component
Equity plans
Graded vesting period for employees	2 years
Weighted average assumptions
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	0		23,882