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Changes in Gross Liability for Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Aug. 31, 2014
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Aug. 31, 2013
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Aug. 31, 2012
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| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Beginning balance | $ 18,006 | $ 24,608 | $ 26,179 |
| Increases based on tax positions related to the current year | 21,300 | 3,601 | 2,776 |
| Increase (decrease) for tax positions taken in a prior period | 0 | (100) | 624 |
| Decrease due to settlements | 0 | (2,581) | (392) |
| Decrease due to lapse of statute of limitations | (7,030) | (7,522) | (4,579) |
| Ending balance | $ 32,276 | $ 18,006 | $ 24,608 |
| X | ||||||||||
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- Definition
Unrecognized Tax Benefits, Increase (Decrease) Resulting from Prior Period Tax Positions No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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