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Product Warranty Costs (Tables) | 3 Months Ended
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Nov. 30, 2012
Rollforward of Accrued Product Warranty Reserve | The following is a rollforward of the accrued product warranty reserve (in thousands):
|  | Three Months Ended November 30, |
|  | 2012 |  |  | 2011 |
Beginning balances |  | $ | 12,869 |  |  | $ | 23,707 |
Purchase accounting adjustment |  |  | — |  |  |  | (5,719 | )
Provision for warranties |  |  | 2,417 |  |  |  | 2,491 |
Warranty payments and costs incurred |  |  | (3,096 | ) |  |  | (2,903 | )
Impact of changes in foreign currency rates |  |  | 271 |  |  |  | (1,109 | )
Ending balances |  | $ | 12,461 |  |  | $ | 16,467 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration