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Other Financial Data | 12 Months Ended
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Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Other Financial Data | 14. Other Financial Data Items charged to continuing operations during 2016, 2015 and 2014 included the following:
(Dollars in thousands) |  | 2016 |  | 2015 |  | 2014 |
Research and development (R&D) costs: |  |  |  |  |  |  |  |  |  |
Company-sponsored |  |  | 12,863 |  |  | 16,728 |  |  | 16,880 |
Customer-sponsored |  |  | 6,972 |  |  | 6,776 |  |  | 11,586 |
Total R&D |  |  | 19,835 |  |  | 23,504 |  |  | 28,466 |
Other engineering costs |  |  | 12,233 |  |  | 13,899 |  |  | 12,484 |
Total R&D and other engineering costs |  |  | 32,068 |  |  | 37,403 |  |  | 40,950 |
As a % of net sales |  |  | 5.6 | % |  | 7.0 | % |  | 7.7 | %

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