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Retirement Benefit Plans (Details 2) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011
--- | --- | ---
Reconciliation of funded status: |  |
Plan assets in excess of (less than) projected benefit obligations | $ 520 | $ 772
Other long-term liabilities | (7,877) | (8,160)
Amounts recognized in accumulated other comprehensive loss: |  |
Net loss, Plans in which Assets Exceed Benefit Obligations | 872 | 562
Net loss, Plans in which Benefit Obligations Exceed Assets | 9,907 | 10,449
Prior service cost, Plans in which Assets Exceed Benefit Obligations | 0 | 39
Prior service cost, Plans in which Benefit Obligations Exceed Assets | 31 | 39
Net amount recognized in the consolidated balance sheets, Plans in which Assets Exceed Benefit Obligations | 1,392 | 1,373
Net amount recognized in the consolidated balance sheets, Plans in which Benefit Obligations Exceed Assets | 2,061 | 2,328
Amounts recognized in the consolidated balance sheets are: |  |
Other assets | 520 | 772
Other long-term liabilities | (7,877) | (8,160)
Accumulated other comprehensive loss pretax, Plans in which Assets Exceed Benefit Obligations | 872 | 601
Accumulated other comprehensive loss pretax, Plans in which Benefit Obligations Exceed Assets | 9,938 | 10,488
Net amount recognized in the consolidated balance sheets, Plans in which Assets Exceed Benefit Obligations | 1,392 | 1,373
Net amount recognized in the consolidated balance sheets, Plans in which Benefit Obligations Exceed Assets | 2,061 | 2,328
Other Assets [Member] |  |
Reconciliation of funded status: |  |
Plan assets in excess of (less than) projected benefit obligations | 520 | 772
Amounts recognized in the consolidated balance sheets are: |  |
Other assets | 520 | 772
Other Liabilities [Member] |  |
Reconciliation of funded status: |  |
Other long-term liabilities | (7,877) | (8,160)
Amounts recognized in the consolidated balance sheets are: |  |
Other long-term liabilities | $ (7,877) | $ (8,160)

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