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Geographic Information (Tables) | 12 Months Ended
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Sep. 30, 2014
Segment Reporting [Abstract] |
Schedule of Revenues from External Customers by Geographical Areas | All revenues represent sales to unaffiliated customers and are summarized for the last three fiscal years by region in the table below:
| Year Ended September 30, |
| 2014 |  |  | 2013 |  |  | 2012 |
United States | $ | 365,085 |  |  | $ | 374,453 |  |  | $ | 388,977 |
Canada |  | 137,684 |  |  |  | 113,391 |  |  |  | 92,656 |
Middle East and Africa |  | 84,330 |  |  |  | 61,618 |  |  |  | 79,778 |
Europe (including former Soviet Union) |  | 34,920 |  |  |  | 24,092 |  |  |  | 24,857 |
Far East |  | 15,127 |  |  |  | 35,388 |  |  |  | 12,418 |
Mexico, Central and South America |  | 10,668 |  |  |  | 31,925 |  |  |  | 92,055 |
Total revenues | $ | 647,814 |  |  | $ | 640,867 |  |  | $ | 690,741 |
Schedule of Long-Lived Assets by Geographical Areas |
| September 30, |
| 2014 |  |  | 2013 |
Long-lived assets: |  |  |  |  |  |  |
United States | $ | 99,711 |  |  | $ | 96,824 |
Canada |  | 51,493 |  |  |  | 41,777 |
United Kingdom |  | 5,692 |  |  |  | 5,894 |
Total | $ | 156,896 |  |  | $ | 144,495 |

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