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Information about Geographic Areas and Major Customers - Foreign Sales and Long-lived Assets (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended |
|---|---|
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Sep. 30, 2012
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| Segment Reporting [Abstract] | |
| Foreign sales as a percent of total net sales | 14.00% |
| Long-lived assets located in foreign countries | $ 52.6 |