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Investments in Joint Ventures - Assets, Liabilities and Shareholders' Equity of Joint Venture (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Investment In Joint Venture [Abstract]
Receivables from related parties	$ 636	$ 271
Liabilities to related parties	$ 19,278	$ 18,534

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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- Definition

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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