Payout percentage of a targeted amount.

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- Definition

It represents the percentage that performance target are weighted and evaluated.

+ References

No definition available.

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- Definition

Equivalent number of shares expected to vest under share-based compensation arrangement as of the balance sheet date.

+ References

No definition available.

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- Definition

Fair value of share-based payment award granted.

+ References

No definition available.

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- Definition

Frequency of vesting of share-based compensation awards.

+ References

No definition available.

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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- Definition

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.

+ References

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- Definition

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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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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- Definition

Percentage of vesting of share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Discount rate from fair value on offering date that participants pay for shares.

+ References

+ Details

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- Definition

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).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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- Definition

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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

The highest quantity of shares an employee can purchase under the plan per period.

+ References

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- Definition

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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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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STOCK-BASED COMPENSATION PLANS (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 18.1	$ 18.7	$ 13.1
Total unrecognized compensation cost	24.4
Period of unrecognized compensation to be recognized	3 years
Shares available for future grants	15,286,763
Fair value of shares vested	10.0	7.2	10.7
Equivalent shares of SARs outstanding	1,437,031
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, shares	1,191,544	1,149,696	829,001
Restricted stock units \| United States
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting frequency	3
Vesting period	3 years
Restricted stock units \| Non-U.S.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting frequency	3
Vesting period	3 years
Certain restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of unrecognized compensation to be recognized	4 years
Vesting in two years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Vesting period	2 years
Vesting in three years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	25.00%
Vesting period	3 years
Vesting in four years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Vesting period	4 years
Performance stock units awarded in fiscal 2013 \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage	50.00%
Performance stock units awarded in fiscal 2013 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout percentage	200.00%
Performance stock units awarded in fiscal 2013 \| EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted	75.00%
Performance stock units awarded in fiscal 2013 \| Relative total stockholder return
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted	25.00%
Performance stock units awarded in fiscal 2012 \| EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted	50.00%
Performance stock units awarded in fiscal 2012 \| RONA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage that performance targets are weighted	50.00%
Liability awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards and performance stock units, granted, shares	390,562
Equivalent number of awards outstanding	1,617,014
Equivalent number of shares expected to vest	1,537,212
Stock appreciation rights and stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years	3 years
Stock appreciation rights and stock options, granted, number	0	244,403	927,312
Stock appreciation rights and stock options, contractual term		7 years	7 years
Fair value of stock appreciation rights and stock options granted		0.6	3.0
Total intrinsic value of stock appreciation rights and stock options exercised	$ 1.7
Cash-settled stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock appreciation rights and stock options, granted, number	0	59,399
Equivalent shares of SARs outstanding	104,589
Equivalent number of shares expected to vest	99,360
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares per employee	400
Purchase discount from market price	15.00%	15.00%	15.00%