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Leases - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Aug. 31, 2012
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Aug. 31, 2011
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Aug. 31, 2010
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| Leases Disclosure [Line Items] | |||
| Future obligations under non-cancelable operating leases, 2013 | $ 24.5 | ||
| Future obligations under non-cancelable operating leases, 2014 | 19.7 | ||
| Future obligations under non-cancelable operating leases, 2015 | 15.3 | ||
| Future obligations under non-cancelable operating leases, 2016 | 13.1 | ||
| Future obligations under non-cancelable operating leases, 2017 | 10.9 | ||
| Future obligations under non-cancelable operating leases, thereafter | 33.5 | ||
| Operating lease, rental expense | $ 29.5 | $ 26.4 | $ 22.3 |
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Minimum
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| Leases Disclosure [Line Items] | |||
| Lease agreements period | 1 year | ||
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Maximum
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| Leases Disclosure [Line Items] | |||
| Lease agreements period | 20 years | ||
| X | ||||||||||
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- Definition
Lease Agreement Term No definition available.
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- Details
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- Definition
Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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