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Acquisition - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2011
Business Acquisition [Line Items]
Purchase price to acquire entity	$ 8,500
Running Company Acquisition
Business Acquisition [Line Items]
Number of running stores	18

The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.

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