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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, 2013
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Aug. 31, 2012
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Aug. 31, 2011
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| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | |||
| Beginning balance | $ 24,608 | $ 26,179 | $ 28,225 |
| Increase for tax positions taken in a prior period | 3,601 | 3,400 | 4,026 |
| Decrease for tax positions taken in a prior period | (7,622) | (4,579) | (6,072) |
| Decrease due to settlements | (2,581) | (392) | 0 |
| Ending balance | $ 18,006 | $ 24,608 | $ 26,179 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases 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
The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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