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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Commitments And Contingencies Disclosure [Abstract]
Rental expenses of operating leases	$ 6,000	$ 5,800	$ 5,400
Recovery of direct costs		555	11,700
Costs incurred for store closings and lease terminations	581	$ 217	$ 162
Workers compensation insurance policies	$ 1,400

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

+ References

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-Name Accounting Standards Codification



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-SubTopic 10



-Section 50



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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

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- Definition

The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for letter of credit arrangements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

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-Name Accounting Standards Codification



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-SubTopic 30



-Section 50



-Paragraph 1A



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Cash received for the settlement of litigation during the current period.

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