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Equity Method Investment and Receivable from Investee (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Summarized financial information for equity method investee Balance sheet
Current assets	$ 36,081
Noncurrent assets	4,597
Total assets	40,678
Current liabilities	27,597
Noncurrent liabilities	5,407
Total liabilities	$ 33,004

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