XML 21 R22.htm IDEA: XBRL DOCUMENT

Income Taxes (Reconciliation of Federal Statutory Tax Rate to Effective Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Income Taxes [Abstract]
Provision for income taxes	$ 3,378	$ 2,471
Effective income tax rate	38.10%	25.40%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details

- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

+ References+ Details